Rituximab to Treat Moderate Aplastic Anemia, Pure Red Cell Aplasia, or Diamond Blackfan Anemia
|ClinicalTrials.gov Identifier: NCT00229619|
Recruitment Status : Completed
First Posted : September 29, 2005
Results First Posted : July 28, 2014
Last Update Posted : July 28, 2014
|First Submitted Date ICMJE||September 29, 2005|
|First Posted Date ICMJE||September 29, 2005|
|Results First Submitted Date||January 28, 2013|
|Results First Posted Date||July 28, 2014|
|Last Update Posted Date||July 28, 2014|
|Study Start Date ICMJE||September 2005|
|Actual Primary Completion Date||June 2010 (Final data collection date for primary outcome measure)|
|Current Primary Outcome Measures ICMJE
||Response to Rituximab [ Time Frame: 6 months ]
Rituximab will be given to moderate aplastic anemia (MAA), pure red cell aplasia or Diamond Blackfan anemia subjects. Rituxmiab will be given to evaluate if these bone marrow failure syndrome subjects will have an immune response to the intervention. The subjects will receive 375 mg/ meters squared of rituximab which will be infused intravenously once evey week for a total of 4 doses.
Primary endpoint will determine immune response by evaluating changes in peripheral blood counts (platelets, absolute neutrophil count, reticulocyte count, hemoglobin) and transfusion requirements at 6 months. The response wil be will be categorized as complete, partial or no response. Subjects will be categorized as complete responders if their blood counts return to normal. Subjects will categorized as partial responders if there is an improvement in 2 or 3 of the depressed baseline blood counts.
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00229619 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Rituximab to Treat Moderate Aplastic Anemia, Pure Red Cell Aplasia, or Diamond Blackfan Anemia|
|Official Title ICMJE||A Pilot Study of Recombinant Humanized Anti- Cluster of Differentiation Antigen 20 (Anti-CD20) Antibody (Rituximab) in Patients With Moderate Aplastic Anemia, Pure Red Cell Aplasia, or Diamond Blackfan Anemia|
|Brief Summary||This study will test whether the immune-suppressing drug rituximab can increase blood counts and reduce the need for transfusions in patients with moderate aplastic anemia, pure red cell aplasia, or Diamond Blackfan anemia. These are rare and serious blood disorders in which the immune system turns against bone marrow cells, causing the bone marrow to stop producing red blood cells in patients with pure red cell aplasia and Diamond Blackfan anemia, and red blood cells, white blood cells and platelets in patients with aplastic anemia. Rituximab is a laboratory-made monoclonal antibody that recognizes and destroys white blood cells called lymphocytes that are responsible for destroying bone marrow cells in these diseases. The drug is currently approved by the Food and Drug Administration for treating patients with B-cell non-Hodgkin lymphoma, a disease of white blood cells.|
This study will test whether the immune-suppressing drug rituximab can increase blood counts and reduce the need for transfusions in patients with moderate aplastic anemia, pure red cell aplasia, or Diamond Blackfan anemia. These are rare and serious blood disorders in which the immune system turns against bone marrow cells, causing the bone marrow to stop producing red blood cells in patients with pure red cell aplasia and Diamond Blackfan anemia, and red blood cells, white blood cells and platelets in patients with aplastic anemia. Rituximab is a laboratory-made monoclonal antibody that recognizes and destroys white blood cells called lymphocytes that are responsible for destroying bone marrow cells in these diseases. The drug is currently approved by the Food and Drug Administration for treating patients with B-cell non-Hodgkin lymphoma, a disease of white blood cells.
Participants receive four doses of rituximab, once a week for 4 weeks through a needle in an arm vein. The infusion rate depends on how well the patient tolerates the drug. The first infusion usually takes 4 to 6 hours and the rest take 3 to 4 hours. The first and fourth infusions are given at NIH; the second and third may be given at NIH or by a patient's referring doctor. Patients who respond to rituximab but then relapse may receive one additional course of four doses. Patients may continue with transfusions and their current medications, including growth factors (e.g., Epogen and Neupogen) while on study, but may have to stop taking immunosuppressive drugs, such as prednisone or cyclosporine. Patients who must start another immunosuppressive medication are taken off rituximab and followed for safety with clinic visits one week and then once a month for 6 months after the first dose of rituximab.
Patients have a blood test once a week while receiving rituximab to evaluate blood counts. After treatment is completed, patients are evaluated once a month until 6 months, then once a year until 3 years to monitor the response to treatment and any drug side effects. Patients are evaluated at NIH for the 3- and 6-month visits and the annual visits. They may be seen at NIH or by their referring doctors for the 1-, 2-, 4- and 5-month visits. A blood test is done at every visit, and a bone marrow aspiration and biopsy are done at the 3-month visit (and when clinically needed to evaluate the effect of rituximab on bone marrow cells).
|Study Type ICMJE||Interventional|
|Study Phase||Phase 2|
|Study Design ICMJE||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Intervention ICMJE||Drug: Rituximab
Rituximab (Rituxan) 375mg/m2 intravenous infusion. The infusion will be once every week for a total of 4 doses.
Other Name: Rituxan
|Study Arms||Experimental: Rituximab (Rituxan)
This is a non-randomized, off label, pilot study of humanized anti CD20 rituximab (Rituxan®) in patients with moderate aplastic anemia, pure red cell aplasia or Diamond-Blackfan anemia who have either failed to respond to at least one prior course of immunosuppressive therapy (PRCA/DBA patients only)or who have relapsed disease after prior immunosuppressive therapy (PRCA/DBA patients only).
Intervention: Drug: Rituximab
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Actual Enrollment ICMJE
|Original Enrollment ICMJE
|Actual Study Completion Date||June 2010|
|Actual Primary Completion Date||June 2010 (Final data collection date for primary outcome measure)|
|Eligibility Criteria ICMJE||
Diagnosis of acquired moderate aplastic anemia defined as aplastic anemia (hypocellular bone marrow) and no evidence for an underlying disease process and depression of at least two out of three blood counts below these values:
Diagnosis of pure red cell aplasia or Diamond Blackfan anemia requiring red blood cell (RBC) transfusions
Pure red cell aplasia is defined by
Diamond Blackfan anemia is defined by
Because this population is prone to dry bone marrow aspirates, subjects from whom sufficient bone marrow cannot be collected for the evaluation of cellularity will not be excluded provided they meet all other inclusion criteria based on peripheral blood counts.
Pure Red cell Aplasia and Diamond Blackfan patients must be age greater than or equal to 2 years old and weight greater than 12 kg; Moderate Aplastic anemia patients must be age greater than or equal to 18.
Refractory to at least 1 course of immunosuppressive therapy or relapsed disease after prior immunosuppressive therapy (PRCA/DBA patients only).
Patients or their parent(s)/responsible guardian(s) must be able to comprehend and be willing to sign an informed consent.
Current diagnosis of Fanconi's anemia or other congenital bone marrow failure syndromes except for DBA
History of a cytogenetic abnormality indicating myelodysplasia (MDS)
Active infection not adequately responding to appropriate therapy
Positive anti- hepatitis B core antibody (antiHBc) or HBsAG
History of clinically significant arrhythmia
Known anaphylaxis or immunoglobulin E (IgE) mediated hypersensitivity to murine proteins or to any component of this product.
Moribund status or concurrent hepatic, renal, cardiac, neurologic, pulmonary, infectious, or metabolic disease of such severity that it would preclude the patient's ability to tolerate protocol therapy, or that death within the next month is likely
Potential subjects with cancer who are on active chemotherapeutic treatment or who take drugs with hematological effects will not be eligible.
History of recent or ongoing B19 parvovirus infection
Psychiatric, affective, or other disorder that may compromise the ability to give informed consent or to cooperate in a research study.
Pregnancy or lactation or unwillingness to take contraceptives
Participation in any other investigational drug trial or exposure to other investigational agents (other than hematopoietic growth factors) within 30 days of study entry. Use of low dose immunosuppressive agents may continue at the PIs discretion provided that the patient has been taking this drug for at least 3 months.
|Ages||2 Years and older (Child, Adult, Senior)|
|Accepts Healthy Volunteers||No|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries ICMJE||United States|
|Removed Location Countries|
|NCT Number ICMJE||NCT00229619|
|Other Study ID Numbers ICMJE||050244
05-H-0244 ( Other Identifier: NIH NHLBI )
|Has Data Monitoring Committee||Yes|
|U.S. FDA-regulated Product||Not Provided|
|IPD Sharing Statement||Not Provided|
|Responsible Party||Sabrina Martyr, M.D., National Heart, Lung, and Blood Institute (NHLBI)|
|Study Sponsor ICMJE||National Heart, Lung, and Blood Institute (NHLBI)|
|Collaborators ICMJE||Not Provided|
|PRS Account||National Institutes of Health Clinical Center (CC)|
|Verification Date||July 2014|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP