A Phase III, Randomized Study of the Effects of Parenteral Iron, Oral Iron, or No Iron Supplementation on the Erythropoietic Response to Darbepoetin Alfa for Cancer Patients With Chemotherapy-Associated Anemia
OBJECTIVES:
Primary
* To compare the effects of IV iron, oral iron, or placebo in combination with darbepoetin
alfa on the hematopoietic response rate, defined as a hemoglobin increment of ≥ 2.0 g/dL
from baseline or achievement of hemoglobin of ≥ 11 g/dL in the absence of red blood cell
transfusions (RBC) in the preceding 28 days of the treatment period, in cancer patients with
chemotherapy-associated anemia.
Secondary
- To compare the effects of these regimens on the mean hemoglobin increment from baseline
to weeks 7 and 16 in these patients.
- To compare the effects of these regimens on the percentage of patients maintaining an
average hemoglobin level within the American Society of Hematology/American Society of
Clinical Oncology (ASH/ASCO)and National Comprehensive Cancer Network(NCCN)
guideline-based target hemoglobin range (11-13 g/dL), once achieving a hemoglobin of ≥
11 g/dL from week 1 to week 16 in the absence of RBC transfusions in the preceding 28
days of the treatment period.
- To compare the effects of intravenously (IV) iron, oral iron, or placebo on the
response to darbepoetin alfa, in terms of time to achieving hemoglobin levels of ≥
11g/dL.
- To compare the effects of these regimens on the percentage of patients who require RBC
transfusions and the total transfusion needs.
- To compare the effects of these regimens on the change in hemoglobin week by week.
- To compare the effects of these regimens on quality-of-life changes from baseline to
weeks 7 and 16.
- To identify if patients with inflammation (as indicated by elevated C-reactive protein
(CRP) and serum hepcidin levels or low soluble transferrin receptor (sTfR)/log ferritin
ratios) respond differently to darbepoetin alfa and iron therapy than patients without
inflammation.
OUTLINE: Patients are stratified according to severity of anemia (mild [hemoglobin ≥ 9.5
g/dL] vs severe [hemoglobin < 9.5 g/dL]), treatment with a platinum-containing regimen (yes
vs no), and gender. Patients are randomized to 1 of 3 treatment arms.
- Arm I: Patients receive darbepoetin alfa subcutaneously and sodium ferric gluconate
complex IV over 90 minutes on day 1.
- Arm II: Patients receive darbepoetin alfa as in arm I and oral ferrous sulfate once
daily on days 1-21.
- Arm III: Patients receive darbepoetin alfa as in arm I and oral placebo once daily on
days 1-21.
In all arms, treatment repeats every 21 days for up to 15 weeks in the absence of
unacceptable toxicity.
Patients complete quality-of-life (QOL) questionnaires in weeks 1, 7, and 16.
Interventional
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Supportive Care
Hematopoietic Response Rate Defined as the Number of Participants Who Exhibit a Hematopoietic Response
Hematopoietic response was defined as Hemoglobin (Hb) increment of 2.0 g/dL from baseline or achievement of Hb >= 11 g/dL (whichever occurs first) in the absence of red blood cell transfusions during the preceding 28 days during the treatment period.
16 Weeks
No
Charles L. Loprinzi, MD
Study Chair
Mayo Clinic
United States: Food and Drug Administration
CDR0000593480
NCT00661999
January 2006
March 2009
Name | Location |
---|---|
Mayo Clinic | Rochester, Minnesota 55905 |
Mayo Clinic in Arizona | Scottsdale, Arizona 85259-5404 |