Leucovorin for the Treatment of 5 q Minus Syndrome
|First Received Date ICMJE||March 22, 2000|
|Last Updated Date||March 3, 2008|
|Start Date ICMJE||April 1998|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE||Not Provided|
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00004997 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE||Not Provided|
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Leucovorin for the Treatment of 5 q Minus Syndrome|
|Official Title ICMJE||The Experimental Treatment of Transfusion Dependent 5q Minus Syndrome With Leucovorin|
The 5 q minus syndrome is a condition that occurs due to a missing segment of chromosome 5 in the normal genetic make-up of the cells responsible for forming blood cells. The condition causes patients to have the inability to make blood normally. Many patients with this syndrome need transfusions of red blood cells, platelets, and/or white blood cells. Low levels of platelets may cause the patient to bleed easily and low levels of whit blood cells make the patient susceptible to infections. A small number of patients with 5 q minus syndrome develop leukemia, which is often untreatable with chemotherapy.
Researchers believe that one of the genes missing in 5 q minus syndrome is the gene responsible for making folic acid active in the body. Folic acid is a vitamin required for normal blood production.
The purpose of this study to test the effectiveness of a drug called leucovorin for the treatment of 5 q minus syndrome. Leucovorin is an active form of the vitamin folic acid that does not require the missing genes to activate it.
Patients participating in this study may or may not improve with leucovorin treatment. However, the study will improve researchers understanding of the disease and may lead other potential therapies for the disease.
|Detailed Description||The objective of this protocol is to determine whether leucovorin treatment can normalize hematopoietic cell growth and differentiation in patients with 5q- syndrome which may lack the gene for dihydrofolate reductase enzyme.|
|Study Type ICMJE||Interventional|
|Study Phase||Phase 2|
|Study Design ICMJE||Endpoint Classification: Safety/Efficacy Study
Primary Purpose: Treatment
|Intervention ICMJE||Drug: Leucovorin|
|Study Arm (s)||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Estimated Completion Date||July 2002|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
All patients 18 years old and older with RA, RARS and RAEB who have a 5q deletion as their sole cytogenetic abnormality who require transfusion support with blood defined as needing at least one unit of packed red blood cells per month for greater than or equal to 2 months and/or thrombocytopenia defined as a platelet count less than 50,000, and/or severe neutropenia (absolute neutrophil count less than 500) are eligible, including patients that had been treated with chemotherapy or experimental agents such as retinoids, phenylbutyrate, amifostine, Vitamin D, ATG or hematopoietic growth factors.
Patients must not be transforming to acute leukemia (greater than 20% blasts in marrow aspirate).
Patients must not have had treatment with growth factors or any other experimental drug within 4 weeks prior to entry on protocol.
Patients must not have an ECOG performance status greater than 2.
Patients must not have an active uncontrolled infection.
No patients for whom bone marrow transplant is indicated as primary therapy.
Must be able to give informed consent.
Patients must not be HIV positive.
Patients must not be pregnant.
|Ages||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||NCT00004997|
|Other Study ID Numbers ICMJE||980101, 98-CC-0101|
|Has Data Monitoring Committee||Not Provided|
|Plan to Share Data||Not Provided|
|IPD Description||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||National Institutes of Health Clinical Center (CC)|
|Collaborators ICMJE||Not Provided|
|Investigators ICMJE||Not Provided|
|Information Provided By||National Institutes of Health Clinical Center (CC)|
|Verification Date||July 2002|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP