Friday, February 18, 2011

The IRON Story

The four topics that were included in the guide were:
1. Getting enough dialysis to stay healthy for patients on Hemodialysis
(Adequacy of Hemodialysis).
2. Getting enough dialysis to stay healthy for Peritoneal Dialysis patients
(Adequacy of Peritoneal Dialysis).
3. The best ways to provide you with a blood access for dialysis (fistula, graft, or
catheter) and how to care for that access (Vascular Access).
4. The best ways to use an ESA (erythropoietin stimulating agent) and iron to
keep your blood count high and prevent anemia (Anemia Management).
The NKF-DOQI™ guide helped make patient care better. Because of this, the NKF
decided to update their original guides and to print new guides for other special
problems of patients with kidney disease. They changed the name from the NKF
Dialysis Outcomes Quality Initiative (NKF-DOQI™) to the NKF-Kidney Disease
Outcomes Quality Initiative (NKF-KDOQI™).
This pamphlet you are about to read tells only one small story. It explains the
importance of:
How iron prevents anemia in patients with kidney disease (like you).
National Kidney
Foundation Kidney
Disease Outcomes
Quality Initiative
2
When your doctor tells you that your blood count is low, it
means you do not have enough red blood cells (RBCs)
in your blood. Red blood cells are responsible for
delivering oxygen throughout the body. Anemia is a sign
of disease, and not a disease itself. This is very common
in chronic kidney disease. Anemia can also be caused by hemodialysis alone. There is
always some blood that remains in the dialyzer and blood lines after each treatment.
When you lose blood, you are losing RBCs, and when you lose RBCs, you lose
hemoglobin and iron.
Possible Symptoms of anemia
• Often, no symptoms
• Paleness
• Feeling tired
• Unusual shortness of breath
• Fast heartbeat
• Colder hands and feet than usual
• Headaches
Anemia, over a long period of time, can cause you to have problems with your heart.
If you already have heart problems, it can make those problems worse.
The Kidneys, Iron and Anemia.
The healthy kidney produces a hormone called erythropoietin
(commonly known as EPO). A hormone is a chemical substance
that acts as a messenger delivering material from one part of the
body to another. RBCs are formed in the bone marrow with the
help of this hormone. The bone marrow is also supplied with a
small amount of iron, which helps to build healthy new RBCs.
Then the RBCs carry oxygen to all parts of the body. Every living human cell needs
oxygen to live. Muscles are made up of millions of cells. An important muscle is the
heart. This is why heart conditions can develop or worsen if there are not enough
RBCs to deliver oxygen to the cells of the heart. Oxygen is the fuel for cell survival.
What is
Anemia?
3
There are two common causes of anemia in chronic kidney disease patients:
1. Too few red blood cells. This is because the kidney is no longer making the
hormone erythropoietin.
2. Too little iron.
Too little iron may be caused by the following:
• Diet restrictions
• The body is not able to absorb enough iron
• Some blood is lost during hemodialysis. It’s almost impossible to return all
your blood after hemodialysis. Some blood remains in the dialyzer and tubing
• Other blood loss: GI (gastrointestinal) bleeding, catheter lines, bleeding from
the access site after hemodialysis, surgery, clotted dialyzers and blood lines
• Erythropoietic stimulating agents (ESA) such as EPO speed up the making of
RBCs and quickly use a lot of the iron in your body to make RBCs
How your doctor knows when to give you iron.
The blood tests that are taken each month will give your doctor a picture of how
healthy your red blood cells are. It will show if they are receiving enough iron. (These
tests may be taken less often if your red blood count remains good.)
There are blood tests that show how
your red blood cells are doing and there
are blood tests that show where the iron
is in your body and how it is being used.
What happens when the kidneys don’t work properly?
4
1. Hemoglobin: This is the part of the red blood cell which contains iron and
carries oxygen.
2. Hematocrit: a percentage of red blood cells (RBCs) within a sample of blood.
1. Ferritin: This is a protein that reflects stored
iron. Think of ferritin as gas in the tank. You need
to have enough gas to keep a car running. This
is why it is important to measure and track these
values regularly. Remember, when you lose blood
you lose iron and RBCs. Losing iron is like losing
gas from your car.
When you have a serious infection, it is possible that your body will hold onto the iron
in storage. In this case, your ferritin levels will be high but you don’t have enough iron
in your red blood cells. The infection should be treated before continuing your iron
therapy.
2. Transferrin Saturation (TSAT): Transferrin is a protein that takes the iron from
the storage protein (ferritin), or the iron that you’re being treated with, and
brings it to the bone marrow where it may be used to build healthy red blood
cells. This lab value is a percentage. Think of it as the tube that brings the
gas to the engine. It’s the transportation vehicle for iron. A TSAT of <20%
means that you do not have enough iron for your RBCs.
Reticulocyte Hemoglobin Content (CHr): This test measures the amount of
iron in the youngest red blood cells, known as reticulocytes. This lets you see
iron status earlier in the newest RBCs and is a more sensitive test when you
have an infection or inflammation. During infection or inflammation,
your ferritin levels can be higher even if you do not have enough iron. The
CHr level is not affected in this way, and can help show if you need iron
therapy. This new test has been added to the NKF-KDOQI guidelines for 2006.
Your most important red blood cell tests are:
The two iron blood tests you should know about are:
Other:
5
Lab Values Hemodialysis
Dependent CKD
Non-Dependent Dialysis
CKD & Peritoneal Dialysis
Hemoglobin
Ferritin
Transferrin Saturation
CHr
>11 g/dL
200 - 500 ng/mL
>20%
>29 pg/cell
>11 g/dL
100 - 500 ng/mL
>20%
None Recommended
Reading this booklet is one of the first
steps to preventing and controlling
anemia. It’s very important to find the
reason for a low iron level. Talk to your
doctor or nurse if you think you might
have anemia. A blood test will probably
be done to diagnose anemia. GI
bleeding many times is undetected. If you develop dark tarry stools, report it
immediately to your doctor or nurse. Other tests may be needed to find out what’s
causing the anemia. Early and controlled treatment can reduce some of the symptoms
of anemia.
Taking an erythropoietin stimulating agent (ESA). Since as a patient with chronic
kidney disease you may not be making enough erythropoietin, you will receive a manmade
form of erythropoietin. An ESA may be given during your hemodialysis treatment
through the blood lines or by an intravenous (IV) injection. It may also be given by a
very small injection under your skin. This is a subcutaneous or S.C. injection.
Taking Iron. Taking iron by mouth (oral iron) may be enough if you are not receiving
an ESA. However, some patients with chronic kidney disease and almost all patients
on hemodialysis who are taking an ESA will need to receive injectable iron. Oral iron is
not fast enough to replace the iron that’s needed once the ESA begins to make new
red blood cells.
What can be
done to prevent or
control anemia?
National Kidney Foundation (NKF) KDOQI Guidelines
Based on recent recommendations the target range is between 11.0 g/dL to 12.0 g/dL. Each patient should discuss how
best to treat their anemia with their doctor and such treatment should be based on their individual healthcare needs.
*
6
*
Stored iron will be used when needed but eventually will need to be replaced for future
use. Without enough iron, an ESA cannot completely correct anemia.
If you are on an ESA and you are not getting enough iron, your doctor may
treat you with intravenous (IV) iron. You will receive intravenous iron during your
hemodialysis treatment or when you come to your doctor’s office or clinic visit.
There are two ways of receiving iron if diet alone is not enough. Your doctor may
prescribe oral iron (pills that you may buy without a prescription). Oral iron is usually
given three times a day between meals. How and when you take oral iron is very
important:
• Take iron one hour before or two hours after a meal
• Do not take with antacids
• Do not take phosphate binders at the same time
• Avoid alcohol
If you begin to get constipated, have nausea, or a feeling of fullness, consult your
doctor. You may take stool softeners to help avoid constipation, and let your doctor
know if you begin to have this problem. If you are not able to obtain a good blood
count with oral iron, your doctor may prescribe intravenous iron. This is the iron
injected into your bloodstream.
An ESA and iron work together to help your body make healthy new red blood cells.
Your doctor will decide how to give you these drugs based on the procedures in your
dialysis unit and the suggestions from the NKF-KDOQI™ guidelines.
The Food and Drug Administration (FDA) has approved four types of intravenous
iron injectable products for use in the United States. These are iron sucrose, iron
dextran, iron gluconate* and ferumoxytol. All of these will help to increase the amount
of iron you have in your body. There are some differences among them, however.
*Iron gluconate: also known as sodium ferric gluconate in sucrose injection.
What type of iron may my doctor prescribe?
7
These differences have to do with the approved uses, how quickly they work, whether
or not a test dose is required, the types of side effects you may see, and the size of
your dose. Your doctor will decide which is best for you. Like many other treatments,
IV iron may be partially covered through your medical insurance.
A person can experience an allergic reaction to intravenous iron just as they do to
other medications. It is important for you to notify your doctor or a member of the
dialysis staff immediately if you experience:
• Flushing
• Difficulty breathing
• Itching
• Rash
• Any unusual symptoms during or just after the drug was given
If you have had an allergic reaction to intravenous iron in the past, you need to
discuss with your doctor whether a different type of intravenous iron may be better
for you.
Conclusion
We hope this booklet has helped you understand the importance of iron in your
body to help correct the problem of anemia. If you still have questions about iron or
anemia, talk to your doctor. We salute you for taking the time to learn about your
health, and hope you will continue to take steps to be an active participant in your
care.
8
Anemia: A decrease in the amount of red blood cells that are needed
to carry enough oxygen to meet the body’s needs.
CHr: Reticulocyte Hemoglobin Content. This lab value measures
the iron status of a young red blood cell usually 24
hours before it becomes a mature red blood cell.
CKD: Chronic Kidney Disease (reduced kidney function).
EPO: (Erythropoietin). A hormone produced by the kidney. It
stimulates the bone marrow to produce red blood cells.
ESA: Erythropoietin stimulating agent. Drugs that replace the hormone
erythropoietin when the kidneys fail to produce it.
Ferritin: A form of storage iron.
Hematocrit: Measures the amount of red blood cells within a specific
amount of blood.
Hemoglobin: The part of the red blood cells that carries oxygen from
the lungs to the tissues.
RBC: Red blood cell.
Transferrin: A protein in the blood that carries iron.
Transferrin Saturation:
(TSAT) measures the amount of iron that is immediately
available to produce RBCs.
Glossary
9
10
Aronoff G, Van Wyck D. Iron sucrose in hemodialysis patients: Safety of replacement and maintenance regimens.
Kidney International 2004;66:1-6.
Bailie GR, Clark JA, Lane CE, Lane PL. Hypersensitivity reactions and deaths associated with intravenous iron
preparations. Nephrology Dialysis Transplantation (2005); Advance Access Publication.
Bailie G, Johnson C, Mason N. Parenteral Iron Use in the Management of Anemia in End-Stage Renal Disease
Patients. Am J Kidney Dis 35:1, pp. 1-12, January 2000.
Bailie G, Johnson C, Mason N. Parenteral iron products for anemia in end-stage renal disease: Comparative
considerations. Formulary 35:6, June 2000.
Blaustein D, Schwenk M, Chattopadhyay J, Singh H, Daoui R, Gadh R, Avram M. The safety and efficacy of an
accelerated iron sucrose dosing regimen in patients with chronic kidney disease. Kidney International 2003;64(S
87);S72-S77.
Charytan C. Comparison of intravenous iron sucrose to oral iron in the treatment of anemic patients with chronic
kidney disease not on dialysis. Nephron Clinical Practice 2005;100:c55-c62.
Charytan C, Levin N, Al-Saloum M, Hafeez T, Gagnon S, Van Wyck D. Efficacy and safety of iron sucrose for
iron deficiency in patients with dialysis-associated anemia: North American clinical trial. Am J Kidney Dis
2001;37:300-307.
Charytan C, Schwenk M, Al-Saloum M, Spinowitz B. Safety of iron sucrose in hemodialysis patients intolerant to
other parenteral iron products. Nephron Clinical Practice 2004;96:c63-c66.
Macdougall IC, Roche A. Administration of intravenous iron sucrose as a 2-minute push to CKD patients: A
prospective evaluation of 2,297 injections. Am J Kidney Dis 2005;46(2):283-289
NKF - K/DOQI: Clinical practice guidelines for Anemia of Chronic Kidney Disease: Update 2006. American Journal
of Kidney Diseases, Vol 47, No 5, Suppl 3(May), 2006: pp S58-S70.
Schiesser D, Binet I, Tsinalis D, Dickenmann M, Keusch G, Schmidli M, Ambuhl PM, Luthi L, Wuthrich RP.
Weekly low-dose treatment with intravenous iron sucrose maintains iron status and decreases epoetin requirement
in iron-replete haemodialysis patients. Nephrology Dialysis Transplantation 2006.
Singh H, Reed J, Noble S, Cangiano JL, Van Wyck D. Effect of intravenous iron sucrose in peritoneal dialysis
patients who receive erythropoiesis-stimulating agents for anemia: A randomized, controlled trial. Clin J Am Soc
Nephrol 2006.
Van Wyck D, Cavallo G, Spinowitz B, Adhikaria R, Gagnon S, Charytan C, Levin N. Safety and Efficacy of Iron
Sucrose in Patients Sensitive to Iron Dextran: North American Clinical Trial. Am J Kidney Dis 36:1, pp. 88-97, July
2000.
Van Wyck D, Roppolo M, Martinez CO, Mazey RM, McMurray S. A randomized, controlled trial comparing IV iron
sucrose to oral iron in anemic patients with nondialysisdependent CKD. Kidney International 2005;68:2846-2856.
Yee J, Besarab A. Iron sucrose: the oldest iron therapy becomes new. Am J Kidney Dis, 2002;40(6):1111-21.
Bibliography For Further Reading
11
Resources
American Association of Kidney Patients (AAKP): www.aakp.org
Dialysis Patient Citizens: www.dialysispatients.org
National Anemia Action Council: www.anemia.org
Renal Support Network: www.rsnhope.org
Society for the Advancement of Blood Management: www.sabm.org
TISEV2
Rev. 1/2010
One Luitpold Drive, PO Box 9001
Shirley, NY 11967
1-800-645-1706
www.americanregent.com
www.venofer.com
Copyright © 2010 American Regent, Inc.
Leading anemia management.™
Venofer® Venofer® Venofer® Venofer®
(iron sucrose injection, USP) (iron sucrose injection, USP) (iron sucrose injection, USP) (iron sucrose injection, USP)
Rx Only Rx Only Rx Only Rx Only
DESCRIPTION
Venofer<> (ironsucrose injeclion, USP)is a brown, sterile, aqueous, complex of polynuclear iron(1I1)-hydroxide in sucrose for
inlravenous use. Ironsucrose injection hasa molecular weight of approximately 34,000 - 60,000 daltons enda proposed
structural formula:
[Na2FesOa(OH) • 3(H~)ln • m(C12H22011)
where: n is the degree of iron polymerization and m is the number of sucrose molecules associated ~th the iron (111)hydroxide.
EachmLcontains 20mgelemental ironas ironsucrose in waterfor injeclion. Venofer<> is available in5 mLsingle dosevials
(100mgeiemental ironper5 mL)and10mLsingle dosevials(200mgelemental ironper10mL), Thedrugproducl contains
apprOXimately 30% sucrose w/v (300mg/mL) and has a pH of 10.5-11.1. The product contains no preservatives. The
osmolarity of the injection is 1,250mOsmoVL.
Therapeutic class: Hematinic
CLINICAL PHARMACOLOGY
Phannacodynamics: FolI~ng intravenous administration ofVenafer<>, ironsucrose is dissociated bythereticuloendothelial
system into iron and sucrose. In 22 hemodialysis patients on erythropoietin (recombinant human erythropoietin) therapy
treated ~th ironsucrose containing 100mgof iron,threetimesweekly for three weeks, significant increases in serum iron
and serum ferritin and significant decreases in total iron binding capacity occurred four weeks fromthe initiation of iron
sucrose treatment.
Phannacokinetics: In healthy adults treated ~th intravenous dosesof Venofer<>, its ironcomponent exhibits first order
kinetics ~th an elimination half-life of 6 h, totalclearance of 1.2 Uh, non-steady state apparent volume of distribution of
10,0Landsteady state apparent volume of distribution of7,9 L.Since irondisappearance fromserum depends ontheneed
for ironin the ironstores andironutilizing tissues of the body, serum clearance of ironis expected to bemore rapid in iron
deficient patients treated ~th Venofer<> as compared to healthy individuals, The effects of age and gender on the
phannacokinetics of Venofer<> havenotbeen studied.
Venofer<> is notdialyzable through CA210 (Baxter) HighEfficiency or Fresenius F80AHighFluxdialysis membranes. Inin
vitrostudies, theamount of ironsucrose in thedialysate fluidwasbelowthelevels of detection oftheassay (iessthan2 parts
permillion),
Distribution: In heallhy adullsreceiving intravenous doses of Venofer<>, its ironcomponent appears to distribute mainly in
bloodandtosomeexlentin extravascular fluid, Astudyevaluating Venofer<> containing 100mgof ironlabeled with52FelS9Fe
in patients with iron deficiency shows thata significant amount of the administered iron distributes in the liver, spleen and
bonemanrow andthatthebonemarrow isan irontrapping compartment andnota reversible volume of distribution,
Metabolismand Elimination: FolI~ng intravenous administration of Venofer<>, ironsucrose is dissociated into ironand
sucrose by the reticuloendothelial system. The sucrose component is eliminated mainly by urinary excretion, In a study
evaiuating a singleintravenous doseof Venofer<> containing 1,510mgof sucrose and 100mgof ironin 12healthy adults
(9female, 3 male: agerange 32-52), 68.3% ofthesucrose waseliminated in urine in 4 hand 75.4% in24h, Some ironalso
is eliminated intheurine, Neither transferrin nortransferrin receptor levelschanged immediately afterthedoseadministration
[1].In thisstudyandanother studyevaluating a single intravenous doseof ironsucrose containing 500-700 mgof ironin 26
anemic patients onerythropoietin therapy (23female, 3 male; agerange 16-60), approximately 5%oftheironwaseliminated
in urinein 24 h at eachdoselevel[2].
Drug-drugInteraelions: Drug-drug interactions involving Venofer<> havenot been studied. However, like otherparenteral
ironpreparations, Venofer<> maybe expected to reduce theabsorption of concomitantly administered oralironpreparations.
CLINICAL TRIALS
Venofer<> is used to replenish body iron stores in non-dialysis dependent-chronic kidney disease (NDD-CKD) patients
receiving erythropoietin and in NDD-CKD patients not receiving erythropoietin, and in hemodialysis dependent-chronic
kidney disease (HDD-CKD) and peritoneal dialysis dependent-chronic kidney disease (PDD-CKD) patients receiving
erythropoietin. Iron deficiency may be caused by blood loss during dialysis, increased erythropoiesis secondary to
erythropoietin use, and insufficient absorption of iron from the gastrointestinal tract. Iron is essential to the synthesis of
hemoglobin to maintain oxygen transport andto thefunction andformaton of otherphysiologically important heme andnonheme
compounds. Mostdialysis patients require intravenous ironto maintain sufficient ironstores,
Sixclinical trialswereconducted to assess the safety andefficacy of Venofer<>. Fivestudies wereconducted in the United
States (516patients) andonewasconducled in South Africa (131 patients).
StudyA: Hemodialysis Dopendent-Chronic KidneyDisease (HDD-CKD)
StUdyAwasa mullicenter, open-label, historically-controlled stUdy in 101 hemodialysis patients \T7 patients ~th Venofer<>
treatment and24 in the historical control group) ~th iron deficiency anemia. Eligibility for Venofer<> treatment included
patients undergoing chronichemodialysis threelimesweekly, receiving erythropoietin, hemoglobin concentration greater
than8.0andlessthan11.0g/dLfor at leasttwoconsecutive weeks, transferrin saturation < 20%,andserum ferritin <300
ng/mL. Themean ageof the patients in thetreatment groupwas65 years~th theagerange being31 to 85yearsof age.
The erythropoietin dosewasto be held constant throughoul the study, The protocol did not require administration of a
testdose;however, some patients received a testdoseat the physician'S discretion. Exclusion criteria included significant
underlying disease, asthma, activeinflammatory disease, or serious bacterial or viralinfection. Venofer<> 5 mLcontaining
100mg of elemental ironwas administered through the dialysisline at eachdialysis session eitheras slowinjection or a
saline diluted slowinfusion foratotalof10dialysis sessions ~th acumulative doseof 1,000 mgelemental iron, A maximum
of 15mLs(300mgof elemental iron)of Venofer<> wasadministered perweek,
Noadditional ironpreparations wereallowed untilaftertheDay57evaluation. Themean change inhemoglobin frombaseline
to Day24 (endof treatment), Day36, andDay57 wasassessed, Thehistorical control population consisted of 24 patients
~th similarferritin levels as patients treated ~th Venofer<>, whowereoff intravenous ironfor at leasl2weeks andwhohad
received erythropoietin therapy ~Ih hematocrit averaging 31-36for at leasttwo rnomhs priorto stUdy entry. Themean age
of patients in the historical control groupwas56years, ~th anagerange of 29to 80years. Patient ageandserum ferritin
levelweresimilar between treatment andhistorical control patients. Ofthe77patients in thetreatment group, 44(57%) were
maleand33 (43%) werefemale. Themean baseline hemoglobin andhematocrit, werehigheranderythropoietin dosewas
lowerin the historical control population thantheVenofer<> treated population.
Patients in theVenofer<> treated population showed a statistically significantly greater increase in hemoglobin andhematocrit
thandidpatients in the historical control population. SeeTable 1.
Table1. Changesfrom Baselinein Hemoglobin and Hematocrit
Efficacy
parameters
End of Treatment 2 Week follow-up 5 week follow-up
Venofer0
(n=69)
Historical
Control
(n=18)
Venofer'>
(n=73)
Historical
Control
(n=18)
Venofer0
(n=71)
Historical
Control
(n=15)
Hemoglobin (g/dL) 1,O±O.12~ 0.O±O.21 1.3±O.14~ -{).6±O.24 1.2±O.17" -{),1±O,23
Hematocrit (%) 3,1±O.37~ -{).3±O.65 3.6±O,44~ -1.2±O.76 3,3±O.54 0.2±O,86
~p<0.01 and·p<0,05compared to historical control fromANCOVA analysis ~th baseline hemoglobin, serum ferritin and
erythropoietin doseascovariates.
Serum ferritin increased significantly (p=0.0001) at endpoint of studyfrom baseline in the Venofer<>-treated population
(165.3±24,2 ng/mL) compared to the historical control population (-27.6±9.5 ng/mL). Transferrin saluration also increesed
significantly (p=0,0016) at endpoint of stUdy frombaseline in theVenofer<>-treated population (8.8±1.6%) compared to this
historical control population (-5.1±4.3%) [3J.
StudyB: HemodialysisDopendent-Chronic KidneyDisease (HDD-CKD)
StUdy B was a multicenter, openlabelstudyof Venofer<> (iron sucrose injection, USP)in 23 iron deficient hemodialysis
patients whohadbeendiscontinued fromirondexlran dueto intolerance, Eligibility criteria andVenofer<> administration were
otherwise idenlical to Study A.Themean ageof thepatients in thisstUdy was53years, withagesranging from21-79years,
Ofthe23patients enrolled in thestudy, 10(44%) weremaleand13(56%) werefemale. Theethnicity breakdown of patients
enrolled in thisstudywasas follows: Caucasian (35%); Black (35%); Hispanic (26%); Asian (4%), Themean change from
baseline to theendof treatment (Day24)in hemoglobin, hematocrit, andserum ironparameters wasassessed.
All 23 enrolled patients wereevaluated for efficacy. Statistically significant increases in mean hemoglobin (1.1±O.2 g/dL),
hematocrit (3.6±O.6%), serum ferritin (286.3±30.3 ng/mL) andtransferrin saturation (8.7±2.0%) wereobserved frombaseline
to endof treatment [4J.
Study C: HemodialysisDopendent-Chronic KidneyDisease (HDD-CKD)
Study C was a multicenter, open-label, two period (treatment foilowed by observation period) study in iron deficient
hemodialysis patients. Eligibility for this studyincluded chronic hemodialysis patients ~th a hemoglobin lessthanor equai
to 10g/dL, a serum transferrin saturation lessthanor equal to 20%,anda serum ferritin lessthanor equal to 200ng/mL,
whowereundergoing maintenance hemodialysis 2 to 3 timesweekly. Themean age of the patients enrolled in this study
was41years, ~th agesranging from16-70 years. Of 130patients evaluated for efficacy in thisstudy, 68 (52%) weremale
and62 (48%) werefemale. Theethnicity breakdown of patients enrolled in this stUdy wasas follows: Caucasian (23%);
Black (23%); Asian (5%); Other(mixed ethnicity) (49%). Forty-eight percent of thepatients hadpreviously beentreated ~th
oraliron.Exclusion criteria weresimilar to those in Studies A andB. Venofer<> wasadministered in doses of 100mgduring
sequential dialysis sessions untila pre-detennined (celcelateo) totaldoseof ironwasadministered,
Patients received Venofer<> at eachdialysis session, twoto threetimesweekly. Onehourafterthestartof eachsession,S
mLironsucrose (100mgiron)in 100mL0.9%NaCI wasadministered intothe hemodialysis line. A 50mgdose(2.5mL)
wasgivento patients ~thin two weeksof studyentry. Patients weretreated untiltheyreached anindividually calculated totai
irondosebased on baseline hemoglobin levelandbodyweight. Twenty-seven patients (20%) werereceiving erythropoietin
treatment at studyentryandtheycontinued to receive thesame erythropoietin doseforthe duration of thestUdy.
Changes frombaseline to observation week2 andobservation week4 (endof study) wereanalyzed,
Themodified intention-to-treat populaton consisted of 131 patients. Significant (p<0.0001) increases frombaseline in mean
hemoglobin (1.7g/dL), hematocrit (5%), serum ferritin (434.6 ng/mL), andserum transferrin saturation (14%) wereobserved
at week 2 of the observalion period and these values remained significantly increased (p<0,0001) at week 4 of the
observalion period.
Study 0: Non-DialysisDopendent-Chronic KidneyDisease (NDD-CKD)
StUdy D wasa randomized, open-label, multicenter, active-controlled studyof the safety andefficacy of oral iron versus
intravenous ironsucrose (Venofer<» in NDD-CKD patients ~th or ~thout erythropoietin therapy. Erythropoietin therapy was
stabiefor 8 weeks priorto randomization. In the study188patients ~th NDD-CKD, transferrin saturation s 25%,ferritin
s 300ng/mLandanaverage baseline hemoglobin ofs 11.0g/dLwererandomized to receive oraliron(325mgferrous sulfate
threetimes dailyfor 56 days); or Venofer<> (either200mgover2-5minutes 5 times ~thin 14daysor two 500mginfusions
on Day1 andDay14,administered over3,5-4hours). Ofthe 188randomized patients, 182weretreated andfollowed for
upto 56 days. Efficacy assessments weremeasured ondays14,28,42 and56. Themean ageof the91treated patients
in theVenofer<> groupwas61.6years(range 25to 86years) and64 years(range 21to 86years) forthe91 patients in the
oralirongroup, Ethnicity breakdown ofthepatients in theVenofer<> group wasasfollows: Caucasian (60.4%), Black(34,1%),
Hispanic (3.3%), Other(2,2%). Ethnicity breakdown fortheoralirongroup was:Caucasian (50.5%), Black(44.0%), Hispanic
(4.4%), Other(1,1%), Patient demographic characteristics werenotsignificantly different between thegroups. Astatistically
significantly greater proportion of Venofer<> subjects (35179; 44.3%) compared to oral iron SUbjects (23/82; 28%)had an
increase in hemoglobin 2 1 g/dLat anytime during the study(p= 0,03). In patients 2 65 yearsof age,the proportion of
subjecls achieving 2 1.0g/dLincrease in hemoglobin frombaseline was53%(20/38) in theVenofer<> group compared to
23%(10/43) in theoralirongroup. In patients < 65yearsof age,the proportion of subjects achieving 21.0 g/dLinaeasein
hemoglobin from baseline was 37% (15/41) in the Venofer<> group compared to 33% (13/39) in the oral iron group, A
statisticaily significantly greater proportion ofVenofer<> treated patients (31179; 39.2%) compared to oraiirontreated patients
(1/82; 1.2%) hadanincrease in hemoglobin 21g/dLandferritin 2160 ng/mL at anytime during thestudy(p<0.OOO1).
Study E: Peritoneal DialysisDopendent-Chronic KidneyDisease (PDD-CKD)
StUdy Ewasa randomized [2:1 treatment: contrail, open-label, multicenter studycomparing PDD-CKD patients receiving an
erythropoietin and IV iron to PDD-CKD patients receiving an erythropoietin alone ~thout iron supplementation. 126
patients~th PDD-CKD, stableerythropoietin for 8 weeks,TSATs 25%,Ferritins 500ng/mL andanaverage baseline
hemoglobin of s 11.5g/dLwererandomized to receive eithernoiron or Venofer<> (ironsucrose injection, USP)(300mgin
250mL0.9%NaCI over1.5hours on Day1 and15and400mgin 250mL0.9%NaCI over2.5 hours on Day29). 121 of
the126randomized patients weretreated andfollowed forupto71days~th a totalof 88patients whocompleted thestudy.
Efficacy assessments were measured on days 15, 29, 43, 57 and 71. Patient demographic characteristics were not
significantly different between thegroups. Themean ageof the75 treated patients in theVenofer<> I erythropoietin group was
51,9years(range 21 to 81 years) vs. 52.8years(range 23 to 77 years) for 46 patients in the erythropoietin alonegroup,
Ethnicity breakdown ofthepetients in theVenofer<>1 erythropoietin Group wasasfollows: Caucasian (36%); Hispanic (32%);
Black(21.3%); Other(10.7%). Ethnicity breakdown for the erythropoietin alonegroup was: Hispanic (43,5%); Caucasian
(30.4%); Biack (15.2%); Ofher(10,9%). Patients in theVenofer<> 1erythropoietin group hadstatistically significantly greater
mean change frombaseline to the highest hemoglobin value (1.3g/dL), compared to subjects whoreceived erythropoietin
alone (0.6g/dL)(p < 0.01). A statistically significantly greater proportion of subjects treated ~th Venofer<> 1erythropoietin
(59.1 %) hadan inaeasein hemoglobin of 2 1 g/dLat anytimeduring the stUdy compared to the subjecls who received
erythropoietin only(33,3%) (p < 0,05),
CUNICALINDICATIONS ANDUSAGE
Venofer<> is indicated in thetreatment of irondeficiency anemia in thefollowing patients:
• non-dialysis dependent-chronic kidney disease (NDD-CKD) patients receiving an erythropoietin
• non-dialysis dependent-chronic kidney disease (NDD-CKD) patients notreceiving anerythropoietin
• hemodialysis dependent-chronic kidney disease (HDD-CKD) patients receiving anerythropoielin
• peritoneal dialysis dependent-chronic kidney disease (PDD-CKD) patients receiving anerythropoietin.
CONTRAINDICATIONS
Theuseof Venofer<> is contraindicated in patients withevidence of ironoverload, in patients ~lh known hypersensitivity to
Venofer<> or anyof its inactive components, andin patients ~th anemia notcaused by irondeficiency.
WARNINGS
Hypersensitivity reactions have been reported ~th injectable iron products, See PRECAUTIONS and ADVERSE
REACTIONS,
PRECAUTIONS
General:
Because bodyironexcretion is limited andexcess tissueironcanbehazardous, caution should beexercised to ~thhold iron
administration in the presence of evidence of tissue ironoverload. Palients receiVing Venofer<> require periodic monitoring of
hematologic and hematinic parameters (hemoglobin, hematocrit, serum ferritin and transferrin saturation). Iron therapy
should be ~thheld in patienls ~th evidence of iron overload. Transferrin saturation values increase rapidly after IV
administration of ironsucrose; thus,serum iron values maybe reliably obtained 48 hours afterIV dosing, (SeeDOSAGE
ANDADMINISTRATION andOVERDOSAGE),
HypersensitivityReaelions:
Serious hypersensitivity reactions havebeenreported in patients receiving Venofer<>. No life-threatening hypersensitivity
reactions were observed inthecJinical studies. Several cases ofmild ormoderate hypersensitivity reactions mrs observed
in thesestudies. Thereare post-marl<eting spontaneous reports of life-threatening hypersensitivity reactions in patients
receiving Venofer<>. SeeADVERSE REACTIONS.
Hypotension:
Hypotension hasbeen reported frequently in hemodialysis dependent-chronic kidney disease patients receiving intravenous
iron. Hypotension also has been reporled in non-dialysis dependent and peritoneal dialysis dependent-chronic kidney
disease patients receiving intravenous iron. Hypotension foll~ng administration of Venofer<> maybe related to rate of
administration andtotaidoseadministered, Caution should be taken to administer Venofer<> according to recommended
guidelines. SeeDOSAGE ANDADMINISTRATION.
Carcinogenesis, Mutagenesis, and Impairmentof Fertility:
Nolong-tenn studies in animals havebeenperfonned to evaiuate thecarcinogenic potential of Venofer<>.
Venofer<> wasnotgenotoxic in theAmestest,themouse lymphoma cell(L5178YfTK+I-) forward mutation test, thehuman
lymphocyte chromosome aberration test, orthemouse micronucleus test.
Venofer<> atIVdoses upto 15mgiron/kg/day (about 1.2timestherecommended maximum human doseona bodysurface
areabasis) wasfound to havenoeffectonfertility andreproduclive perfonnance of maleandfemale rats.
Pregnancy CategoryB:
Teratology studies havebeen perfonned in ratsat IV dosesup to 13 mg iron/kg/day (about 0.5 times the recommended
maximum human doseon a bodysurface areabasis) andrabbits at IV doses up to 13 mg iron/kg/day (about 1 timesthe
recommended maximum human doseona bodysurface areabasis) andhevereveaied noevidence of impaired fertility or
harmto the fetusdue to Venofer<>, There are, however, no adequate and well controlled studies in pregnant women.
Because animal reproduclion studies are not always predictive of human response, this drug should be usedduring
pregnancy onlyif ciearly needed.
NursingMothers:
Venofer<> is excreted in milkof rats, It is not known whether thisdrugis excreted in human milk.Because manydrugs are
exaeted inhuman milk, caution should beexercised lNhen venofer«> isadministered toa nursing woman.
PediatricUse:
Safety andeffectiveness ofVenofer<> in pediatric patients havenotbeen established. In acountry where Venafer<> is available
for usein children, at a single site,fivepremature infants (weight lessthan1,250g) developed necrotizing enterocolitis and
two of the five expired during or follo~ng a period when they received Venofer<>, several other medications and
erythropoietin. Necrotizing enterocolitis may be a complication of prematurity In verylowbirth weight infants, Nocausal
relationship toVenofer<> oranyother drugs could be established,
GeriatricUse:
Studies A through E did not include sufficient numbers of subjects aged65 yearsandolderto detennine whether they
respond differently fromyounger subjects. Ofthe1,051 patients in two post-marl<eting safetystudies of Venafer<>, 40%were
65years andolder, Nooverall differences in safety wereobserved between these SUbjects andyounger SUbjects, andother
reported clinical experience hasnotidentified differences in responses between theelderly andyounger patients, butgreater
sensitivity of some olderindividuals cannot beruledout.
ADVERSE REACTIONS
AdverseEventsobservedin atl treated populations
Thefrequency ofadverse events associated ~th theuseofVenofer<> hasbeen documented in sixrandomized clinical trials
involving 231hemodialysis dependent, 139non-dialysis dependent and75peritoneal dialysis dependent-CKD patients; and
in twopost-marketing sefetystudies involving 1,051 hemodialysis dependent-CKD patients for a totalof 1,496patients. In
addition, over2,000 patients treated ~th Venofer<> havebeen reported in the medical literature.
Treatment-emergent adverse events reported by 2 2% of treated patients in the randomized clinical trials, whether or not
related to Venofer<> administration, arelistedby indication in Table 2.
Table 2. Most CommonTreatment-Emergent Adve.... Events Reported in 2 2%of Patients By Clinical Indication
(MultidoseSafetyPopulation)
"NOS= Nototherwise specified
Adverse Events
(Preferred Tenm)
HDD-CKD NDD-CKD PDD-CKD
Venofer0
(N=231)
%
Venofer'>
(N=139)
%
Oral Iron
(N=139)
%
Venofer0
(N=75)
%
EPOOnly
(N=46)
%
Subjects with any adverse event 78.8 76.3 73.4 72.0 65.2
Ear and Labyrinth Disorders
Ear Pain 0 2.2 0.7 0 0
Eye Disorders
Conjunctivitis 0.4 0 0 2,7 0
Gastrointestinal Disorders
Abdominal pain NOS" 3.5 1.4 2.9 4.0 6.5
Constipation 1.3 4.3 12.9 4.0 6.5
Diarrhea NOS 5,2 7,2 10.1 8.0 4.3
Dysgeusia 0.9 7.9 0 0 0
Nausea 14.7 8,6 12,2 5.3 4.3
Vomiting NOS 9.1 5.0 8,6 8.0 2.2
General Disorders and
Administration Site Conditions
Asthenia 2.2 0.7 2.2 2.7 0
Chest pain 6.1 1.4 0 2.7 0
Edema NOS 0.4 6,5 6.5 0 2.2
Fatigue 1.7 3,6 5.8 0 4.3
Feeling abnormal 3.0 0 0 0 0
Infusion site buming 0 3.6 0 0 0
Injection site extravasation 0 2.2 0 0 0
Injection site pain 0 2,2 0 0 0
Peripheral edema 2.6 7.2 5,0 5.3 10,9
Pyrexia 3.0 0.7 0.7 1.3 0
Infections and Infestations
Catheter site infection 0 0 0 4.0 8.7
Nasopharyngitis 0.9 0.7 2.2 2.7 2.2
Peritoneal infection 0 0 0 8.0 10.9
Sinusitis NOS 0 0.7 0.7 4.0 0
Upper respiratory tract infection NOS 1.3 0.7 1.4 2.7 2.2
Urinary tract infection NOS 0.4 0.7 5,0 1.3 2,2
Injury, Poisoning and
Procedural Complications
Graft complication 9.5 1.4 0 0 0
Investigations
Cardiac murmur NOS
Fecal occult blood positive
0.4
0
2.2
1.4
2,2
3,6
0
2.7
0
4,3
Table 2 continued on reverse side.
venoeer» Venofer® venofer® Venofer®
(iron sucrose injection, USP) (iron sucrose injection, USP) (iron sucrose injection, USP) (iron sucrose injection, USP)
Rx Only Rx Only Rx Only Rx Only
Table2. Most CommonTreatment-Emergent Adverse Events Reported in ;, 2%of Patients By Clinical Indication Table 4. Most CommonAdverse Events Related to Study Drug Reported in ;, 2% of Patients by Dose Group
(MultidoseSafetyPopulation)- CONTINUED (MultidoseSafetyPopulation) - CONTINUED
Adverse Events
(Preferred Term)
HDD-CKD NDD-CKD PDD-CKD
Venofer®
(N=231)
Venofer®
(N=139)
Oral Iron
(N=139)
Venofer®
(N=75)
EPOOnly
(N=46)
% % % % %
Metabolism and Nutrition Disorders
Fluid overload 3.0 1.4 0.7 1.3 a
Gout a 2.9 1.4 a a
HyperglycemiaNOS a 2.9 a a 2.2
HypoglycemiaNOS 0.4 0.7 0.7 4.0 a
Musculoskeletal and Connec1ive
Tissue Disorders
Arthralgia 3.5 1.4 2.2 4.0 4.3
Arthritis NOS a a a a 4.3
Sack pain 2.2 2.2 3.6 1.3 4.3
Muscle cramp 29.4 0.7 0.7 2.7 a
Myalgia a 3.6 a 1.3 a
Pain in extremity 5.6 4.3 a 2.7 6.5
Nervous System Disorders
Dizziness 6.5 6.5 1.4 1.3 4.3
Headache 12.6 2.9 0.7 4.0 a
Hypoesthesia a 0.7 0.7 a 4.3
Respiratory,Thoracic and
Mediastinal Disorders
Cough 3.0 2.2 0.7 1.3 a
Dyspnea 3.5 3.6 0.7 1.3 2.2
Dyspnea exacerbated a 2.2 0.7 a a
Nasal congestion a 1.4 2.2 1.3 a
Pharyngitis 0.4 a a 6.7 a
Rhinitis allergic NOS a 0.7 2.2 a a
Skin and Subcutaneous lissue
Disorders
Pruritus 3.9 2.2 4.3 2.7 a
Rash NOS 0.4 1.4 2.2 a 2.2
Vascular Disorders
HypertensionNOS 6.5 6.5 4.3 8.0 6.5
HypotensionNOS 39.4 2.2 0.7 2.7 2.2
Adverse Events
(Preferred Term)
HDD-CKD NDD-CKD PDD-CKD
100mg
(N=231)
%
200mg
(N=109)
%
SOOmg
(N=30)
%
300 mg for 2 doses
followed by
400 mg for 1 dose
(N=75)
%
General Disorders and
Administration Site
Conditions
Infusion site burning a 3.7 a a
Injeelion site pain a 2.8 a a
Peripheraledema a 1.8 6.7 a
Nervous System Disorders
Dizziness a 2.8 6.7 a
Headache a 2.8 a a
Vascular Disorders
HypotensionNOS 5.2 a 6.7 a
NOS= Nototherwise specified
Treatment-emergent adverse events reported in ;,2%of patients bydosegroupareshown in Table 3.
Table3.MostCommonTreatment-Emergent AdverseEventsReported in ;,2% of Patientsby DoseGroup(Multidose
SafetyPopulation)
Adverse Events
(Preferred Term)
HDD-CKD NDD-CKD PDD-CKD
100mg
(N=231)
%
200mg
(N=109)
%
500mg
(N=30)
%
300 mg for 2 doses
followed by
400 mg for 1 dose
(N=75)
%
Subjects with any adverse event 78.8 75.2 80.0 72.0
Ear and Labyrinth Disorders
Ear Pain a 0.9 6.7 a
Eye Disorders
Conjunctivitis 0.4 a a 2.7
Gastrointestinal Disorders
Abdominal pain NOS· 3.5 1.8 a 4.0
Constipation 1.3 3.7 6.7 4.0
DiamheaNOS 5.2 6.4 10.0 8.0
Dysgeusia 0.9 9.2 3.3 a
Nausea 14.7 9.2 6.7 5.3
Vomiting NOS 9.1 5.5 3.3 8.0
General Disorders and
Administration Site Conditions
Asthenia 2.2 0.9 a 2.7
Chest pain 6.1 0.9 3.3 2.7
Edema NOS 0.4 7.3 3.3 a
Fatigue 1.7 4.6 a a
Feeling abnormal 3.0 a a a
Infusion site burning a 3.7 3.3 a
Injection site pain a 2.8 a a
Peripheraledema 2.6 5.5 13.3 5.3
Pyrexia 3.0 0.9 a 1.3
Infections and Infestations
Catheter site infection a a a 4.0
Nasopharyngitis 0.9 0.9 a 2.7
Perrtoneal infection a a a 8.0
Sinusitis NOS a a 3.3 4
Upper respiratory trael infeelion 1.3 0.9 a 2.7
Injury, Poisoning and
Procedural Complications
Graft complication 9.5 1.8 a a
Investigations
Cardiac mumnur NOS
Fecal occult blood positive
0.4
a
2.8
1.8
a
a
a
2.7
Metabolism and Nutrition Disorders
Fluid overload 3.0 1.8 a 1.3
Gout a 1.8 6.7 a
HyperglycemiaNOS a 3.7 a a
HypoglycemiaNOS 0.4 0.9 a 4.0
Musculoskeletal and Connective
lissue Disorders
Arthralgia 3.5 0.9 3.3 4.0
Sack pain 2.2 1.8 3.3 1.3
Muscle cramp 29.4 a 3.3 2.7
Myalgia a 2.8 6.7 1.3
Pain in extremity 5.6 4.6 3.3 2.7
Nervous System Disorders
Dizziness 6.5 5.5 10.0 1.3
Headacihe 12.6 3.7 a 4.0
Respiratory, Thoracic and
Mediastinal Disorders
Cough 3.0 0.9 6.7 1.3
Dyspnea 3.5 1.8 10.0 1.3
Pharyngitis 0.4 a a 6.7
Skin and Subcutaneous lissue Disorders
Pruritus 3.9 0.9 6.7 2.7
Vascular Disorders
HypertensionNOS 6.5 6.4 6.7 8.0
HypotensionNOS 39.4 0.9 6.7 2.7
'NOS= Nototherwise specified
Drug related adverse events reported by;, 2%ofVenofe'"treated patients areshown bydose group in Table 4.
Table 4. Most Common Adverse Events Related to Study Drug Reported in ;, 2% of Patients by Dose Group
(MultidoseSafetyPopulation)
Adverse Events
(Preferred Term)
HDD-CKD NDD-CKD PDD-CKD
100 mg
(N=231)
%
200 mg
(N=109)
%
500 mg
(N=30)
%
300 mg for 2 doses
followed by
400 mg for 1 dose
(N=75)
%
Subjects with any adverse event 14.7 23.9 20.0 10.7
Gastrointestinal Disorders
DiamheaNOS'
Dysgeusia
Nausea
0.9
0.9
1.7
a
7.3
2.8
a
3.3
a
2.7
a
1.3
'NOS = Notofherwise specified
AdverseEventsObserved in Hemodialysis Dependent-Chronic KidneyDisease (HDD-CKD) Patients
Adverse reaelions, whether or not related to Venofe'" (ironsucrose injeelion. USP) administration. reported by > 5% of
treated patients froma totalof231 patients in HDD-CKD Studies A, B,andCwereasfollows: hypotension (39.4%), muscle
cramps (29.4%), nausea (14.7%), headache (12.6%), graft complications (9.5%), vomiting (9.1%), dizziness (6.5%),
hypertension (6.5%), chest pain(6.1%), anddiarrhea (5.2%).
In the firstpost-marKeting safety study, 665chronic hemodialysis patients weretreated withVenofe'"doses of 100mgat
eachdialysis session forupto 10consecutive dialysis sessions for theiriron deficiency or on a weekly basis for 10weeks
for maintenance of iron stores. In this study, 72%of the patients received up to 10 doses, 27%received between 11-30
doses, and1% received 40to SO doses ofVenofe"'. Serious adverse events anddrug-related non-serious adverse events
werecolleeled. In the seoond post-marKeting safety study, 386hemodiaiysis patients wereexposed to a single dose of
Venofe'"(100mgIV by slowinjeelion over2 minutes or 200mgIV by slowinjeelion over5 minutes). Themean ageof
patients enrolled intothetwopost-marKeting safetystudies was59 years, witha range of 2()'93years. Malesmade up60%
of the population. The ethnicity of the patients enrolled in the two studies included Blacks (44%), Caucasians (41 %),
Hispanics (11%), Asians (3%), andothers (1%). Adverse events reported by> 1%of 1,051 treated patients were: cardiac
failure congestive, sepsis NOSanddysgeusia.
AdverseEventsObserved in Non-Dialysis Dependent-Chronic KidneyDisease (NDD-CKD) Patients
In Study D of 162treated NDD-CKD patients, 91 were exposed to Venofe"'. Adverse events, whether or not related to
Venofe"', reported by;,5%oftheVenofe'" exposed patients wereasfollows: dysgeusia (7.7%), peripheral edema (7.7%),
diarrhea (5.5%), oonstipation (5.5%), nausea (5.5%), dizziness (5.5%), and hypertension (5.5%). One serious related
adverse reaelion wasreported (hypotension andshortness of breath notrequiring hospitalization in aVenofe'"patient). Two
patients experienced possibie hypersensitivity/allergic reaelions (local edema/hypotension) during the study. Of the 5
patients whoprematurely discontinued the treatment phase of the studydueto adverse events (2 oral irongroupand3
Venofe'"group), threeVenofe'"patients hadevents thatwereconsidered drug-reiated (hypotension, dyspnea andnausea).
In an additional study of Venofe.., with varying erythropoietin doses in 96 treated NDD-CKD patients, adverse events,
whether or notrelated toVenofe'"reported by25%of Venofe'"exposed patients areasfollows: diarrhea (16.5%), edema
(16.5%), nausea (13.2%), vomiting' (12.1%), arthralgia (1.7%), backpain(1.7%), headache (7.7%), hypertension (7.7%),
dysgeusia (1.7%), dizziness (6.6%), extremity pain (5.5%), and injeelion site buming (5.5%). No patient experienced a
hypersensitivity/allergic reaction during the stUdy. Of thepatients whoprematurely discontinued thetreatment phase of the
studydueto adverse events (2.1% oralirongroupand12.5% Venofe'"group), onlyonepatient (Venofe'"group) hadevents
thatwereconsidered drug-related (anxiety, headache, andnausea). Ninety-one (91)patients in thisstudywereexposed to
Venofe'"eitherduring thetreatment or extended follow-up phase.
AdverseEventsObserved in Peritoneal DialysisDependent-Chronic KidneyDisease (PDD-CKD) Patients
in StUdy Eof 121 treated PDD-CKD patients, 75patients wereexposed to Venofe"'. Adverse events, whether ornotrelated
to Venofe'" reported by z 5% of these patients are as follows: diarrhea, peritoneal infection, vomiting, hypertension,
pharyngitis, peripheral edema andnausea.
In these 75patients exposed to Venofe"', 9 patients experienced serious adverse events asfollows: peritoneal infeelion (2
patients) and 1 patient eachwith cardiopulmonary arrest, myocardiai infarelion, upperrespiratory infeelion NOS, anemia,
gangrene, hypovolemia andtuberculosis. None of these events were considered drug-related. TwoVenofe'" patients
experienced a moderate hypersensitivity/allergic reaction (rashor sweliinglitching) during thestudy.
Theonlydrugrelated adverse reaction to Venofe'"administration reported by22%of patients wasdiarrhea.
Three patients in the Venofe,., studygroupdiscontinued study treatment due to adverse events (cardiopuimonary arrest,
peritonitis andmyocardial infarelion, hypertension) which wereconsidered to benotdrug-reiated.
HypersensitivityReactions: SeeWARNINGS andPRECAUTIONS.
In clinical studies, several patients experienced hypersensitivity reactions presenting withwheezing, dyspnea, hypotension,
rashes, or pruritus. Serious episodes of hypotension occurred in 2 patients treated withVenofe'"at a dose of500mg.
Thepost-marKeting spontaneous reporting system inciudes reports of patients whoexperienced serious or life-threatening
reaelions (anaphylaelic shock, lossof consciousness or collapse, bronchospasm withdyspnea, or convulsion) associated
withVenofe'"administration.
Onehundred thirty(11%) of the 1,151 patients evaluated in the 4 U.S. trialsin HDD-CKD patients (studies A, B andthetwo
postmarketing studies) hadpriorotherintravenous irontherapy andwerereported to beintolerant (defined as precluding
further useof that iron produel). When these patients weretreated withVenofe'"therewereno occurrences of adverse
events thatprecluded further useof Venofe"'.
OVERDOSAGE
Dosages ofVenofe'"(ironsucrose injeelion, USP) in excess of ironneeds mayleadto accumulation of ironin storage sites
leading tohemosiderosis. Periodic monitoring ofiron parameters such asserum fanilin and transferrin saturation may assist
in recognizing iron accumulation. Venofe'" should not be administered to patients with iron overload and should be
discontinued whenserum ferritin levelsequal orexceed established guidelines [5). Particular caution should beexercised to
avoid iron overload where anemia unresponsive totreatment has been incorrectly diagnosed asiron deficiency anemia.
Symptoms associated withoverdosage orinfusing Venofe'"toorapidly included hypotension, dyspnea, headache, vomiting,
nausea, dizziness, joint aches, paresthesia, abdominal and muscle pain, edema, and cardiovascular collapse. Most
symptoms havebeen successfully treated with IV fluids, hydrocortisone, and/orantihistamines. Infusing the solution as
recommended or at a slower ratemayalsoalleviate symptoms.
PreclinicalData:
Single IV doses of Venofe'"at lSOmgiron/kg in mice (about 3 timesthe recommended maximum human doseon a body
surface areabasis) and100mgiron/kg in rats(about 6 timestherecommended maximum human dose on a body surface
areabasis) werelethal.
Thesymptoms of acute toxicjty weresedation, hypoaelivity, paleeyes, andbleeding in thegastrointestinal tractandiungs.
DOSAGE ANDADMINISTRATION
Thedosage ofVenofe'"is expressed in terms ofmgof elemental iron. Each mLcontains 20mgof elemental iron.
MostCKDpatients will require a minimum cumulative repletion dose of 1,000 mg of elemental iron, administered over
sequential sessions, to achieve a favorable hemoglobin response andto replenish ironstores (ferritin, TSAl). Hemodialysis
patients maycontinue to require therapy withVenofe'"or otherintravenous ironpreparations at thelowest dosenecessary
to maintain target ievelsof hemoglobin, andlaboratory parameters of ironstorage within acceptable limits.
Administration:Venofe'"mustonlybeadministered intravenously eltharbyslowinjection or by infusion.
Recommended Adult Dosage:
Hemodialysis Dependent-Chronic Kidney Disease Patients (HDD-CKD): Venofe'"maybeadministered undiluted as a
100mgslowintravenous injection over2 to 5 minutes orasaninfusion of 100mg,diluted in a maximum of 100mLof 0.9%
NaCi overa period of at least15minutes per oonsecutive hemodialysis session fora totalcumulative doseof 1,000 mg.
Non-Dialysis Dependent-Chronic Kidney Disease Patients(NDD-CKD): Venofe'"is administered as a totalcumulative
doseof 1,000mgovera 14dayperiod asa 200mgslowIV injeelion undiluted over2 to 5 minutes on5 different occasions
within the 14dayperiod. There is limited experience withadministration of aninfusion of SOO mgof Venofe"', diluted in a
maximum of250mLofO.9% NaCI, overa period of3.5-4hours onday1andday14;hypotension occurred in2 of30patients
treated. (SeeCLINICAL TRIALS, Study0: Non-Dialysis Dependenl-Chronic KidneyDisease (NDD-CKD) Patientsand
ADVERSE REACTIONS, AdverseEventsObserved in Non-Dialysis Dependent Chronic Kidney Disease (NDD-CKD)
Patientssections.)
Peritoneal Dialysis Dependenl-Chronic Kidney Disease Patients (PDD-CKD): Venofe'" is administered as a total
cumulative dose of 1,000 mg in 3 divided doses, givenby slowintravenous infusion, wrthin a 28 dayperiod: 2 infusions of
300mgover1.5hours 14daysapart followed byone400mgInfusion over2.5hours 14dayslater. TheVenofe'"doseshould
bediluted in a maximum of250mLof 0.9%NaCI.
HOWSUPPLIED
Venofe'"is supplied in 5 mLand10mLsingle dosevials. Each 5 mLvialcontains 100mgelemental iron(20mg/mL) and
each 10 mLvial contains 200mg elemental iron(20 mg/mL). Contains no preservatives. Store in original carton at 25'C
(77'F). Excursions permitted to 15'-30'C (59'-86'F).[SeetheUSPoontrolled room temperature]. Donotfreeze.
Sterile
100mg/5mLSingle Dose Vial
100mg/5mLSingle Dose Vial
100mg/5mLSingle Dose Vial
NDC-0517-234()'01
NDC-0517-234()'10
NDC0517-234()'25
Individually Boxed
Packages of 10
Packages of 25
200mg/l0 mLSingle Dose Vial
200mg/10 mLSingle Dose Vial
200mg/l0 mLSingle Dose Vial
NDC-0517-231()'01
NDC-0517-231()'05
NDC-0517-231()'10
Individually Boxed
Packages of 5
Packages of 10
RxOnly

Clinical pharmacology

• Physical description and chemical formula
Venofer® (iron sucrose injection, USP) is a brown, sterile, aqueous complex of
polynuclear iron (III) hydroxide in sucrose, containing 20 mg elemental iron per mL.
The sterile solution has an osmolarity of 1250 mOsmol/L. The product does not
contain preservatives.
Molecular Formula: [Na2Fe5O8(OH) · 3(H2O)]n · m(C12H22O11)
Molecular Weight: Approximately 34,000 – 60,000 daltons
Description: Iron sucrose is a brown, aqueous solution
with a pH of 10.5–11.1
• Mechanism of action
Venofer® is used to replenish body iron stores in patients with iron deficiency
anemia in non-dialysis dependent-CKD patients receiving or not receiving an erythropoietin,
and in hemodialysis and peritoneal dialysis dependent-CKD patients
receiving an erythropoietin. Iron is essential to the formation of hemoglobin and to
the function and formation of other heme and nonheme compounds. Untreated
depletion of iron stores leads to iron-deficient erythropoiesis and, in turn, to iron
deficiency anemia. Administration of Venofer® replenishes tissue iron stores, reverses
iron depletion and iron-deficient erythropoiesis, and corrects or prevents iron
deficiency anemia.
Following intravenous administration, Venofer® is dissociated into iron and sucrose
by the reticuloendothelial system, and iron is transferred from the blood to a pool of
iron in the liver and bone marrow. Ferritin, an iron storage protein, binds and
sequesters iron in a nontoxic form, from which iron is easily available. Iron binds to
plasma transferrin, which carries iron within the plasma and the extracellular fluid to
supply the tissues. The transferrin receptor, located in the cell membrane, binds the
transferrin iron complex, which is then internalized in vesicles. Iron is released within
the cell, and the transferrin-receptor complex is returned to the cell membrane.
Transferrin without iron (apotransferrin) is then released to the plasma. The intracellular
iron becomes (mostly) hemoglobin in circulating red blood cells (RBCs).
Transferrin synthesis is increased and ferritin production reduced in iron deficiency.
The converse is true when iron is plentiful.
9
The stability of Venofer® (iron sucrose injection, USP) allows a competitive
exchange of iron between iron sucrose and selective iron-binding proteins such as
transferrin and ferritin. Pharmacokinetic parameters show that the administered iron
disappears very rapidly from the serum, insuring a rapid correction of iron deficiency
anemia.130
• Pharmacokinetics130-135
In healthy adults treated with intravenous doses of Venofer®, its iron component
exhibits first-order kinetics:
– Elimination T1/2 6 hours
– Total clearance 1.2 Liters per hour
– Non–steady–state apparent volume of distribution 10.0 Liters
– Steady–state apparent volume of distribution 7.9 Liters
Since iron disappearance from the serum depends on the need for iron in the iron
stores and iron-utilizing tissues of the body, serum clearance of iron is expected to
be more rapid in iron-deficient patients treated with Venofer® as compared with
healthy individuals.
Distribution
In healthy adults, the iron component of Venofer® appears to distribute mainly in the
blood and to some extent in extravascular fluid.
Metabolism
Iron sucrose is dissociated into iron and sucrose by the reticuloendothelial system.
Elimination
The sucrose component is eliminated mainly by urinary excretion. Some iron is
also eliminated in the urine (approximately 5%).
• Ferrokinetics132
Following a single dose of 100 mg iron, iron uptake in bone marrow, liver, and
spleen is rapid, followed by emergence of injected iron in circulating RBCs. Total
RBC uptake accounts for 68% to 97% of injected iron within 2–4 weeks.
10
• Adverse reactions1
The safety of Venofer® (iron sucrose injection, USP) has been documented in six
randomized clinical trials involving 231 hemodialysis dependent; 139 non-dialysis
dependent; 75 peritoneal dialysis dependent patients; and two post-marketing safety
studies in 1,051 hemodialysis patients for a total of 1,496 patients. Please refer
to the Venofer® product package insert for a complete list of adverse events.
• Hemodialysis Studies11-13
In three clinical safety and efficacy trials (231 patients), several patients experienced
pruritus and one patient experienced a facial rash. No patients experienced
generalized rashes or urticaria. None of these reactions led to treatment discontinuation.
No serious or life-threatening anaphylactoid reaction was observed in the
three clinical efficacy trials11-13.
Adverse reactions, whether or not related to Venofer® administration, reported by
>5% of the 231 treated patients in the above three hemodialysis studies are as follows:
hypotension, muscle cramps, nausea, headache, graft complications, vomiting,
dizziness, hypertension, chest pain, and diarrhea. Some of these symptoms
may be seen in hemodialysis patients not receiving intravenous iron.
• Non-Dialysis Dependent Chronic Kidney Disease Studies92,125
Adverse reactions, whether or not related to Venofer® administration, reported by
>5% of treated patients from a total of 139 patients in two clinical studies are as follows:
taste disturbance, peripheral edema, diarrhea, constipation, nausea, dizziness,
hypertension, vomiting, arthralgia, back pain, headache, extremity pain, and
injection site burning.
• Peritoneal Dialysis Dependent - Chronic Kidney Disease Study1,124
Adverse reactions, whether or not related to Venofer® administration, reported by >
5% of treated patients from a total of 121 patients (75 Venofer® treated patients) are
as follows: diarrhea, peritoneal infection, vomiting, hypertension, pharyngitis,
peripheral edema and nausea.
• Post Marketing Safety Studies
In the two post-marketing safety studies, 665 patients received multiple doses of
Venofer®, and 386 patients received a single dose of Venofer®. In the multiple dose
study, only serious adverse events and drug related non-serious events were
reported. Adverse events reported in >1% of 1,051 patients were congestive heart
failure (CHF), sepsis and taste disturbance.23,24.
11
• Important Safety Information
Venofer® (iron sucrose injection, USP) is contraindicated in patients with new evidence
of iron overload, in patients with known hypersensitivity to Venofer® or any of
its inactive components, and in patients with anemia not caused by iron deficiency.
Hypersensitivity reactions have been reported with IV iron products. Hypotension
has been reported frequently in hemodialysis dependent-CKD patients receiving IV
iron, and, has also been reported in non-dialysis dependent and peritoneal dialysis
dependent-CKD patients receiving IV iron. Hypotension following administration of
Venofer® may be related to rate of administration and total dose delivered.
In multi-dose efficacy studies in hemodialysis dependent-CKD patients (N=231), the
most frequent adverse events (>5%), whether or not related to Venofer® administration,
were hypotension, cramps/leg cramps, nausea, headache, graft complications,
vomiting, dizziness, hypertension, chest pain and diarrhea. In post-marketing safety
studies in hemodialysis dependent-CKD patients (N=1051), the most frequent
adverse events reported (>1%) were congestive heart failure, sepsis and taste perversion.
In multi-dose efficacy studies in non-dialysis dependent-CKD patients
(N=91), the most frequent adverse events (>5%) whether or not related to Venofer®
administration, were taste disturbance, peripheral edema, diarrhea, constipation,
nausea, dizziness, and hypertension. In the study of peritoneal dialysis dependent-
CKD patients (N=75), the most frequent adverse events, whether or not related to
Venofer®, reported by >5% of these patients were diarrhea, peritoneal infection,
vomiting, hypertension, pharyngitis, peripheral edema and nausea.
• Drug interactions
As with all parenteral iron preparations, Venofer® should not be administered concomitantly
with oral iron preparations since the absorption of oral iron may be
reduced. In patients previously receiving oral iron therapy, administration of
Venofer® should prompt discontinuation of oral iron agents.1
Pregnancy Category B:
Teratology studies have been performed in rats and have revealed no evidence
of impaired fertility or harm to the fetus due to Venofer® (iron sucrose injection,
USP). There are, however, no adequate and well controlled studies in pregnant
women. Because animal reproduction studies are not always predictive of human
response, this drug should be used during pregnancy only if clearly needed.
12
Pediatric Use:
Safety and effectiveness of Venofer® (iron sucrose injection, USP) in pediatric
patients have not been established1. In a country where Venofer® is available for
use in children, at a single site, five premature infants (weight less than 1,250g)
developed necrotizing enterocolitis and two of the five expired during or following a
period when they received Venofer®, several other medications and erythropoietin.
Necrotizing enterocolitis may be a complication of prematurity in very low birth
weight infants. No causal relationship to Venofer® or any other drugs could be
established.
Geriatric Use:
The clinical efficacy studies of Venofer® did not include sufficient numbers of subjects
aged 65 and over to determine whether they respond differently from younger
subjects. Of the 1,051 patients in two post-marketing safety studies of Venofer®
40% were age 65 or older. No overall differences in safety were observed between
these subjects and younger subjects. Other reported clinical experience has not
identified differences in response between elderly and younger patients. However,
greater sensitivity of some older individuals cannot be ruled out.1

Current issues in anemia management


Iron is an essential nutrient that is needed by every human cell. It plays a
valuable role in the transport and storage of oxygen and oxidative metabolism, and
in cell growth and proliferation. The most important use of iron is the production of
hemoglobin and myoglobin. Iron is very reactive and is needed for many metabolic
processes but may also be potentially harmful. It can participate in several reactions
that may produce free radicals, which can be damaging to cells. Because of
this, both iron deficiency and iron overload are clinically significant. If too little iron
is available, deficiency of iron-containing compounds may have deleterious effects
on cells and tissues. If iron accumulates, toxicity may lead to organ damage and
death.126
Iron deficiency is the most common deficiency disease worldwide. More than
one billion people have iron deficiency, and about 700 million people have iron
deficiency anemia. An absolute iron deficiency occurs when an insufficient amount
of iron is available to meet the body’s requirements. Insufficiency is commonly due
to chronic blood loss, but inadequate iron intake, reduced bioavailability of dietary
iron, and increased utilization of iron may also be seen. Prolonged iron deficiency
leads to iron deficiency anemia, a microcytic, hypochromic anemia characterized by
decreased hemoglobin production and decreased red cell production.126
Functional iron deficiency may be important, particularly among patients receiving
recombinant human erythropoietin. It is the most common cause of a poor
response to erythropoietin therapy. Functional iron deficiency is defined as a condition
in which there is a failure to release iron rapidly enough to keep pace with the
demands of the bone marrow for erythropoiesis, despite adequate total body iron
stores. In these cases, ferritin levels may be normal or high, but the supply of iron
to the erythron is inadequate to support erythropoiesis, as evidenced by a low
transferrin saturation and an increased number of microcytic, hypochromic erythrocytes.
126
Functional iron deficiency has the following characteristics:
• Inadequate hemoglobin (Hb) response to erythropoietin.
• Serum ferritin >100 ng/mL.
• Transferrin saturation (TSAT) usually < 20%.
• Reduced mean corpuscular volume (MCV) or mean corpuscular
hemoglobin concentration (MCHC) in severe cases.
The differential diagnosis between functional and absolute irondeficiency is essential
in order to understand iron indices in chronic kidney disease.
5
Iron deficiency anemia is a serious public health problem that can impact all aspects
of life and social activity. Many patients can be treated with oral iron preparations.
However, there are subgroups in which oral iron is not adequate to treat the iron deficiency.
In these clinical situations, intravenous iron therapy is the preferred treatment.
Venofer® (iron sucrose injection, USP) is an alternative to oral or other parenteral iron
therapy. Venofer® is the only first-line IV iron therapy approved to treat iron deficiency
anemia in all of the following key patient groups with Chronic Kidney Disease (CKD):
Pre-Dialysis, Hemodialysis and Peritoneal Dialysis patients.
Iron Deficiency In Chronic Kidney Disease
The National Kidney Foundation-Kidney Disease Outcomes Quality Initiative
(KDOQI) Clinical Practice Guidelines and Clinical Practice Recommendations for
Anemia in Chronic Kidney Disease (CKD) provides recommendations for optimal clinical
practices. KDOQI Anemia 2006 reviewed 2756 citations, cited 461 publications,
and developed 3 evidence based guidelines and 34 clinical practice recommendations.
127 These guidelines represent the best and most current appraisal of care for
anemia in CKD patients.
The May 2006 supplement of The American Journal of Kidney Diseases represents
the first comprehensive update of the KDOQI guidelines since their original publication
in 1997.128 In 2001, the original DOQI clinical practice guidelines initiative underwent
a minor revision. The most current guidelines reflect a re-analysis of all available
evidence and an expanded scope explicitly addressing all patients with CKD,
including transplant CKD, regardless of etiology, stage, or treatment modality.
Several important issues related to iron deficiency and its management in CKD
patients receiving erythropoietin therapy should be considered:
• Iron (blood) losses are high, especially in hemodialysis patients.
• Oral iron usually cannot maintain adequate iron stores, especially
in hemodialysis patients receiving erythropoiesis-stimulating agents (ESAs).
• In patients using ESA therapy, assuring adequate iron for erythropoiesis is
particularly important.
• Prevention of functional and absolute iron deficiency by regular use of intravenous
(IV) iron improves sensitivity to ESA.
• TSAT, or CHr, are the best indicators of iron availability for erythropoiesis.
• Serum ferritin is the best indicator of tissue iron stores.
• However, in CKD patients, TSAT and ferritin are each unreliable as diagnostic
indices of iron deficiency. Testing of Hb, TSAT or CHr together with ferritin is
recommended because the combination provides important insight into external
iron balance and internal iron distribution.
A brief summary of some of the issues addressed by these guidelines is provided.
6
Assessing Iron Status
Iron status must be assessed to determine iron deficiency, the most common cause of inadequate
response to ESA therapy.
• In ESA-treated patients, if TSAT <20%, the likelihood that Hb will rise or ESA doses fall
after IV iron administration is high. Achievement of target Hb levels with optimum ESA
doses is associated with providing sufficient IV iron to maintain TSAT >20%.
• In CKD patients with ferritin <200 ng/mL (HD) or <100 ng/mL (ND or PD), the
likelihood that iron stores are depleted is high. If these patients also show TSAT <20%,
iron deficiency is considered to be absolute. In patients with TSAT <20% but ferritin
>200 ng/mL (HD-CKD) or >100 ng/mL (ND or PD-CKD), iron stores are thought to be
adequate but unavailable for iron delivery. In this condition, iron deficiency is considered
to be relative or functional.
• No current evidence is available to support the routine treatment of patients with serum
ferritin levels greater than 500 ng/mL. Clinicians should therefore base iron treatment
decisions on the individual patient’s clinical status and ESA responsiveness. When the
serum ferritin is >500 ng/mL and concurrently measured TSAT is <20%, a trial course
of iron therapy may be considered.
• TSAT or CHr and serum ferritin are the best indicators of iron available for erythropoiesis
and iron stores but do not provide absolute criteria of either iron deficiency or
iron overload.
Monitoring Iron Status
Results of iron status tests, Hb, and ESA dose should be interpreted together to guide iron
therapy.
• In the patient initiating ESA therapy, monitor iron indices monthly.
• In patients who have achieved target range Hb or are receiving IV iron therapy, monitor
TSAT and ferritin levels every 3 months.
• Clinical settings in which more frequent iron testing may be necessary
- Initiation of ESA therapy
- Correction of a less-than-target Hb level during ongoing ESA therapy
- Recent bleeding
- After surgery or hospitalization
- Monitoring response after a course of IV iron
- Evaluation for ESA hyporesponse
Target Levels
• The target Hb level is >11.0 g/dL (caution when intentionally maintaining Hb >13 g/dL).
• To achieve target Hb with optimum erythropoietin doses, provide sufficient iron to maintain
TSAT >20% and ferritin >200 ng/mL (HD-CKD) or >100 ng/mL (ND or PD-CKD).
7
Administration of Supplemental Iron
Supplemental iron should be given to maintain target hemoglobin while
preventing iron deficiency.
IV iron is the preferred route of administration in patients with HD-CKD or ESA therapy.
• Most hemodialysis patients will require repeated IV iron administration, due
to dialysis-associated blood loss resulting in negative iron balance.
The route of iron administration can be either IV or oral in patients with PD or NDCKD.
Oral Iron
• Daily dose of elemental iron in oral iron therapy is approximately 200 mg.
• Oral iron is unlikely to maintain target iron indices in ESA-treated patients.
• If oral iron is initiated on trial basis but fails to maintain target iron levels,
discontinue oral iron and give IV iron.
Intravenous Iron
There are 2 widely used and effective approaches to IV iron treatment. These are
outlined in the KDOQI guidelines as follows:
Periodic Iron Repletion: A series of IV iron doses administered episodically to
replenish iron stores whenever iron status tests decrease.
• To correct iron deficiency (TSAT <20%). Administer 1 gram IV iron in divided
doses (e.g., 100 mg doses of Venofer® (iron sucrose injection, USP) on
10 consecutive dialysis sessions). Reassess iron status and repeat if necessary.
Please refer to page 13 for complete Venofer® dosing.
Continuous Maintenance Treatment: Smaller doses administered at regular intervals
to maintain iron status within target. The average IV iron dose needed to maintain
a stable ferritin level appears to be in the range of 22 to 65 mg/week.
• To maintain target iron levels, administer IV iron weekly, monthly, or at each
dialysis session, in doses sufficient to maintain TSAT >20% and ferritin >200
ng/mL (HD-CKD) or >100 ng/mL (PD or ND-CKD).
Successful anemia therapy in patients with CKD requires appropriate targets of
therapy, testing of iron status, and the safe and effective use of iron agents. The
goal of iron therapy is to achieve and maintain target Hb levels, to avoid storage
iron depletion and prevent iron deficient erythropoiesis.129

Key points about Venofer® (iron sucrose injection, USP)


Venofer® (iron sucrose injection, USP) is a brown, sterile, aqueous complex of polynuclear
iron (III)-hydroxide in sucrose for intravenous use. It contains no preservatives
or dextran polysaccharides. Venofer® is indicated in the treatment of iron deficiency
anemia in non-dialysis dependent chronic kidney disease (CKD) patients
receiving or not receiving an erythropoietin and in hemodialysis or peritoneal dialysis
dependent chronic kidney disease patients receiving an erythropoietin.1
• Over 50 years of worldwide clinical experience2
Venofer® is used to replenish body iron stores in patients with iron deficiency anemia.
Clinical trials and the long history of the use of iron sucrose injection worldwide
has established the efficacy and safety of this drug in patients with iron deficiency
anemia from chronic renal failure. Since 1992, over 90 million doses (100mg
equivalents) have been sold in 79 countries.
The clinical evaluation of Venofer® is based on results from more than 100 studies3-
124 involving more than 7,000 subjects. More than 5,000 patients were treated with
Venofer®. These studies demonstrate the effectiveness of Venofer® in the treatment
of iron deficiency anemia alone and in combination with an erythropoietin.
• Large safety database
A large safety database on Venofer® is available from clinical trial reports,
publications, and postmarketing surveillance.
Data on the safety of Venofer® has been collected since its introduction to the
European market (Switzerland) in 1950 and during a modern clinical development
program begun in 1990. These data, and the data observed in worldwide postmarketing
surveillance, suggest that most adverse events are mild to moderate and
similar to those seen in patients with chronic renal failure not receiving intravenous
iron.1
• Serious adverse reactions related to Venofer are uncommon
The incidence of serious adverse reactions is low. Clinical trials presented to
the U.S. Food and Drug Administration supporting the safety and efficacy of
Venofer® were conducted in 1,496 patients.11-13,23-24,92,123,124 Based on an estimated use
in 4.6 million patients that received Venofer® worldwide between 1992 and August
2005, only 108 hypersensitivity reactions have been reported, including serious or
life threatening reactions.2

• Contains no dextran polysaccharides
Venofer® (iron sucrose injection, USP) contains no dextran polysaccharides, which
are associated with antibody-induced anaphylaxis to iron dextran.
• Indicated for the treatment of iron deficiency anemia in hemodialysis,
peritoneal dialysis, and non-dialysis dependent CKD patients
Venofer® (iron sucrose injection, USP) is indicated in the treatment of iron deficiency
anemia in non-dialysis dependent-CKD patients receiving or not receiving an
erythropoietin and in hemodialysis and peritoneal dialysis dependent-CKD patients
receiving an erythropoietin.1
• Safely administered to hemodialysis patients intolerant to other IV
iron products
In four US Clinical trials in hemodialysis-dependent CKD patients, a total of 130
patients who were intolerant to other IV iron products (109 intolerant to iron dextran
alone, 6 intolerant to ferric gluconate alone, 15 intolerant to both) were successfully
treated with Venofer®. There were no discontinuations or serious adverse drug
reactions. A total of 8 patients experienced one or more non-serious related
adverse events. The most common were taste disturbance (4) and nausea (3).125
• Important Safety Information
Venofer® (iron sucrose injection, USP) is contraindicated in patients with evidence
of iron overload, in patients with known hypersensitivity to Venofer® or any of its
inactive components, and in patients with anemia not caused by iron deficiency.
Hypersensitivity reactions have been reported with IV iron products. Hypotension
has been reported frequently in hemodialysis dependent-CKD patients receiving IV
iron, and has also been reported in non-dialysis and peritoneal dialysis dependent-
CKD patients receiving IV iron. Hypotension following administration of Venofer®
may be related to rate of administration and total dose delivered.

In multi-dose efficacy studies in hemodialysis dependent-CKD patients (N=231), the
most frequent adverse events (>5%), whether or not related to Venofer® (iron
sucrose injection, USP) administration, were hypotension, cramps/leg cramps, nausea,
headache, graft complications, vomiting, dizziness, hypertension, chest pain
and diarrhea. In post-marketing safety studies in hemodialysis dependent-CKD
patients (N=1,051), the most frequent adverse events reported (>1%) were congestive
heart failure, sepsis and taste perversion. In multi-dose efficacy studies in nondialysis
dependent-CKD patients (N=91), the most frequent adverse events (>5%)
whether or not related to Venofer® administration, were taste disturbance, peripheral
edema, diarrhea, constipation, nausea, dizziness, and hypertension. In the study of
peritoneal dialysis dependent-CKD patients (N=75), the most frequent adverse
events, whether or not related to Venofer®, reported by >5% of these patients were
diarrhea, peritoneal infection, vomiting, hypertension, pharyngitis, peripheral edema
and nausea.
• Convenient single dose vials, preservative free
The difficulties associated with glass ampules, such as breakage, splintering, and
bodily injury to staff, have been eliminated. One 5 mL vial of Venofer® provides 100
mg of iron as iron sucrose, the NKF-K/DOQI recommended dose for a single dialysis
session. Venofer® contains no preservatives such as benzyl alcohol. Each
Venofer® vial is bar coded with its National Drug Code to help prevent medication
errors.
• Administered by slow injection or by infusion
Venofer® is simple to administer. Venofer® may be administered either by undiluted
IV push injection or by IV infusion1. This option gives healthcare providers the flexibility
to deliver iron therapy in the most convenient way for the patient.
• A test dose is not required
Venofer®, unlike iron dextran products, does not require a test dose prior to initiation
of therapy.11,12 However, in two US clinical trials in hemodialysis patients, some
patients received a test dose at the physician’s discretion.
• Non Dialyzable
Results of an in vitro study found that Venofer® was not significantly removed by
either high efficiency or high flux dialyzers.
• Dissociated by reticuloendothelial system (RES)
Following Venofer® administration, the iron sucrose complex of Venofer® is picked
up from the circulation and dissociated by the reticuloendothelial system (RES)1.

Reimbursement information


INTRODUCTION
Caring for chronic kidney disease patients requires that physicians, providers,
other healthcare professionals and administrators work closely with third-party
payers to ensure that appropriate reimbursement is provided for medically
necessary healthcare services. American Regent, Inc., is committed to helping
the renal community better understand reimbursement issues. This section
provides general coverage, coding, and reimbursement information that will
help you understand the policies of the Medicare ESRD program and other
payers for Venofer® (iron sucrose injection, USP).
PATIENT ASSISTANCE PROGRAM AND Venofer® REIMBURSEMENT HOTLINE
American Regent, Inc., has created the Venofer® Patient Assistance Program
(PAP) to help improve access to Venofer® for patients who lack health insurance
and cannot afford therapy. To be eligible for the program, patients must completely
lack health insurance, be ineligible for public insurance or financing, and must
meet income and other criteria established by American Regent. American Regent
will replace the Venofer® provided free of charge while the patient is enrolled in the
program.
In addition, American Regent has created a toll-free hotline to help physicians and
other providers understand payers’ coverage and reimbursement policies for
Venofer® and, when necessary, address reimbursement issues. American
Regent’s Venofer® Reimbursement Hotline is available to provide expert assistance
with all types of insurance claims, including Medicare. This service can be
reached at 800-282-7712 between 9 am and 5 pm, ET. Specifically, hotline program
associates assist with the following:
Insurance verifications - Help callers verify payer coverage and reimbursement
policies for Venofer® for specific patients. Program associates will determine
patients’ benefits level and discuss potential billing options.
Billing assistance - Assist callers with filing claims and understanding the
reimbursement policies for Venofer® including researching state-specific
local codes.
Claims appeals - Support callers in appealing denied claims or inadequate
reimbursement for Venofer®.
Patient assistance - Screen individuals with no health insurance who are ineligible
for public assistance for enrollment in a free product replacement program. Afterhours
callers may leave a message, and the call will be returned the following business
day.
29
COVERAGE FOR Venofer® (iron sucrose injection, USP)
Medicare covers Venofer® (iron sucrose injection, USP) and related supplies (needles
and syringes) when provided to Medicare-eligible beneficiaries with ESRD on
hemodialysis. Beneficiaries' expenses are subject to Medicare premium, deductible,
and coinsurance requirements. Medicare pays for Venofer® in addition to, and separate
from, the dialysis composite rate in ESRD.
Insurers of CKD patients, including Medicare, Medicaid and leading private insurers,
may also cover Venofer®. Medicare and Medicaid coverage policies can vary from
state to state. Private payer coverage policies can vary considerably from one insurer
to another and from patient to patient based on specific policy benefits. Some
insurers may not have a formal coverage policy for specific dosing regimens of
Venofer®.
CODING FOR Venofer®
Proper coding of services provided is critical to ensuring appropriate reimbursement.
When billing Medicare for hemodialysis patients, dialysis centers use the
Uniform Bill 92 (UB-92) form. Claims may be submitted on paper or electronically;
either way, the same coding rules apply.
Venofer® (iron sucrose injection, USP) received a positive national coverage decision
for that indication by CMS in 2001 and has been assigned a specific HCPCS
Code: J1756.
Venofer® (iron sucrose injection, USP), is available in a preservative free single
dose vial containing 100 mg of elemental iron per 5 mL.
NDC# 0517-2340-10
Each 1 mg of Venofer® (iron sucrose injection, USP) equals one (1) service unit.
For example:
One (1) vial or 100 mg (5 mL) equals 100 service units
Three (3) vials or 300 mg (15 mL) equals 300 service units
Four (4) vials or 400 mg (20 mL) equals 400 service units
Please Note: Venofer® is supplied in 100 mg/5 mL single-use vials, and a single
administration of 100 mg/5 mL of Venofer® represents 100 service units. When
billing, indicate the total amount of drug used as a multiple of service units (1mg = 1
service unit).
HCPCS CODE SHORT DESCRIPTOR LONG DESCRIPTOR
VENOFER® J1756 IRON SUCROSE INJECTION INJECTION, IRON SUCROSE, 1MG
30
To identify the revenue center associated with providing Venofer® (iron sucrose
injection, USP), use the following revenue code:
636 Drugs/Detail Code
To bill Medicare for related supplies (needles and syringes), the following HCPCS
and revenue codes are used:
HCPCS Code:
A4656 Needle (any size, for dialysis, each)
A4657 Syringe (with or without needle, for dialysis, each)
Revenue Code:
270 Medical / Surgical Supplies
Please note that only a physician is qualified to make a diagnosis, and the
diagnosis must be documented in the patient's medical record. American Regent,
Inc., does not recommend the use of any specific diagnosis code in any particular
situation.

Additional information

Additional information
Venofer® (iron sucrose injection, USP) can be given as a bolus injection into the
venous limb of the patient’s vascular access. This mode of administration avoids
the need for filter needles, infusion pumps, bags of normal saline, and IV sets. No
test dose is required. (In two US clinical trials, some physicians administered a test
dose at their discretion.) Venofer® is packaged in vials rather than ampules to
decrease the risk of injury from broken glass to the healthcare professional administering
the dose. This simple, user-friendly method of administration helps reduce
the physician and nursing time required for intravenous iron therapy.
Optimization of Anemia Management in NDD-CKD Without Erythropoietin
Therapy
Iron deficiency commonly complicates anemia in patients with non dialysis-dependent
chronic kidney disease (NDD-CKD). As many as 25 to 40% of males and 35
to 85% of females with anemia and NDD-CKD show evidence of iron deficiency.143
IV iron therapy can provide effective anemia management, even in the absence of
an erythropoietin, in a substantial fraction of these patients. A randomized, controlled,
multicenter trial examined response to iron therapy in patients with NDDCKD
Stage 3-5, anemia and moderately low iron indices (TSAT < 25%, ferritin 300
ng/mL). Among 47 patients who did not receive erythropoietin therapy, 18 (38%)
achieved a Hb increase of > 1.0 g/dl and 28 (60%) achieved a K/DOQI-recommended
Hb level of > 11 g/dl after administration of 1,000 mg of IV iron sucrose in
divided doses.1 Thus, IV iron sucrose alone can be effective in the management of
CKD-associated anemia in non-dialysis patients, even in the absence of erythropoietin
therapy.

Optimization of Erythropoietin Therapy
Aggressive intravenous iron therapy with products such as Venofer® (iron
sucrose injection, USP) is increasingly recognized as a means of optimizing
the response to erythropoietin. Evidence from ten studies5-7,144-151 conducted
since 1992, including a total of more than 450 patients, shows that intensive
intravenous iron supplementation (iron dextran, iron sucrose, or sodium ferric
gluconate in sucrose complex) allows a reduction in erythropoietin dose of
19% to 70%.152
Nyvad O et al.6 Data was collected from 34 end-stage renal failure patients
(26 on hemodialysis, 8 on other types of dialysis) to measure the effect of
iron sucrose on erythropoietin usage in a dialysis center in Denmark. All
patients were receiving erythropoietin (median weekly dose 5,300 IU) for
anemia. Oral iron had not resulted in a significant rise in ferritin (ferritin
ranges from 10-120 ng/L). All patients received an initial cumulative dose of
1,150 mg iron sucrose (1,000 mg iron sucrose is the FDA-approved cumulative
dose). Adjustment of erythropoietin dose was based on assessment of
clinical and lab data. Data was collected from 3 months before to 3 months
after the first dose of iron sucrose. None of the patients had very low ferritin
or TSAT values, yet IV iron sucrose therapy permitted a 27% reduction in the
dose of erythropoietin with unchanged hematocrit and hemoglobin after 3
months.
Macdougall et al.16 Macdougall et al examined the effects of adopting an
aggressive IV iron policy in the United Kingdom. Data was collected from
116 patients attending a single hemodialysis center. All patients with a serum
ferritin between 150 and 1,000 ng/mL received regular weekly IV iron supplementation
(100 mg of iron sucrose as a bolus injection). Intravenous iron
was only withheld if the serum ferritin level exceeded 1,000 ng/mL at any
stage. Patients whose serum ferritin levels were less than 150 ng/mL were
given a more aggressive regimen of IV iron until the levels reached above
this threshold. Among 116 patients included in the study, ferritin and hemoglobin
levels increased, while there was a dramatic reduction in mean erythropoietin
dose from 13,227 IU/wk to 8976 IU/wk.
26
Bioactive Iron and Labile Iron
All IV iron preparations are colloids. IV iron agents are distinguished by colloid particle
size, core size, and the nature of the carbohydrate shell.122 Particles consist a
core of ferric oxide/oxyhydroxide surrounded by a shell of carbohydrate. The
generic name of each agent derives from the carbohydrate, for example, sucrose,
dextran, or gluconate for iron sucrose, iron dextran, and iron gluconate, respectively.
There is no unbound iron in the agents themselves: neither free iron nor intact
iron compounds are found in dialysate.1,138,139,156 However, all iron agents show evidence
of iron bioactivity after exposure to blood, cells or other tissues. Evidence of
the bioactivity of IV iron agents may take several forms: including oxidative
stress,154-156 direct donation of iron to transferrin,143,145-146 and alteration of neutrophil
function.158-160 Manifestations of the bioactivity of IV iron agents are taken to be evidence
that all agents contain a bioactive or labile iron fraction.
Oxidative stress is manifested by indirect measures of the oxidation of lipid membranes
and plasma protein. Not all reports show oxidative stress related to IV iron
agents. How much, if any, oxidative stress occurs after exposure to IV iron agents
depends on the specific test used, the type of IV iron agent, and the concentration
of the IV iron agent itself. Many causes of oxidative stress in chronic kidney disease
patients receiving IV iron are unrelated to iron administration.161-162 It is theorized
that oxidative stress may contribute to the pathogenesis of atherosclerosis
and, in particular, coronary artery disease (CAD). CAD is a leading cause of death
in patients with chronic kidney disease. Although iron is a known and potent cause
of oxidative stress, experimental163 and clinical evidence that IV iron causes CAD or
contributes to atherogenesis or heart disease in renal failure is lacking. More generally,
most experts agree that naturally-occurring causes of iron excess do not lead
to higher rates of CAD.164
Infection is the other leading cause of death in patients with CKD. Since iron is an
essential nutrient for bacterial growth and IV iron agents provide iron in abundance,
the potential role of IV iron administration in the pathogenesis of infection in
patients has been explored. Despite evidence that IV iron agents may enhance
bacterial growth in vitro; prospective, multicenter clinical trials and large scale retrospective
studies in chronic kidney disease patients have found no discernible relationship
between the incidence of infection and either IV iron dosing or levels of
iron status tests.165 An analysis by Aronoff et. al. found that the mortality rate from
infection or sepsis among patients receiving iron sucrose in this trial compared
favorably with that of the overall United States hemodialysis population. They also
found that the hospitalization rate from infection among patients receiving iron
sucrose in the trial was significantly lower than that of the general US hemodialysis
population.23

Labile or bioactive iron in IV iron agents also plays a role in immune defense.
Evidence on the effect of IV iron on neutrophil function is mixed. Since part of the
neutrophil's killing potential stems from oxidative destruction of bacteria, some iron
is needed for optimum neutrophil function. Too much iron, however, impairs phagocytosis
of bacteria by neutrophils in vitro. Carefully designed, prospective studies
have shown no relationship between IV iron treatment and risk of infection.165
Finally, labile iron in IV iron agents may be manifested by a rise in the transferrin
saturation.166 Transferrin is the sole extracellular iron-binding protein. Since the
entire iron-binding capacity of transferrin in the bloodstream of an adult is less than
17 mg, rapid administration of large doses of IV iron may lead to sudden oversaturation
or supersaturation of transferrin. Non-transferrin-bound iron (NTBI) is a theoretical
mechanism to explain increased oxidative stress or bacterial growth.155 NTBI
may contribute to hypotension and cramping, symptoms which limit the dose and
rate of IV iron administration. Difficulty in detecting supersaturation and the observation
that NTBI is found in renal failure patients without IV iron therapy153,167 render
the clinical relevance of this phenomenon uncertain, however.
Markers of oxidative stress include levels of lipid peroxidation (often measured indirectly
by determining levels of malonyldialdehyde (MDA))154,168 or protein oxidation,
including advanced oxidation protein products (AOPP),169 and carbonylated fibrinogen.
170 Markers of neutrophil function include in vitro neutrophil killing capacity,159
neutrophil oxidative burst,160 and neutrophil phagocytosis. Markers of iron donation
to transferrin, of course, include the transferrin saturation (TSAT),166 bleomycindetectable
iron (BDI),170 and NTBI.153-155
In short, while no IV iron agent contains “free” iron, all IV iron agents (including
sodium ferric gluconate complex in sucrose injection, iron dextran and iron sucrose)
have biologically active or labile iron. Labile iron is manifested by several test
results that may be related to CAD and infection; CAD and infection are common
causes of death and hospitalization in dialysis patients, but there is no evidence
linking IV iron agents or IV iron administration to an increased risk of CAD or infection
in patients with chronic kidney disease.