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Spots Global Cancer Trial Database for A Pilot Study of Allopurinol As A Modifier of 6-MP Metabolism in Pediatric ALL

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Trial Identification

Brief Title: A Pilot Study of Allopurinol As A Modifier of 6-MP Metabolism in Pediatric ALL

Official Title: A Pilot Study of Allopurinol As A Modifier of 6-MP Metabolism in Pediatric ALL

Study ID: NCT02046694

Interventions

Allopurinol

Study Description

Brief Summary: This research is being done to determine if allopurinol can change the metabolism of the oral chemotherapeutic medication 6-mercaptopurine (6-MP) in children with acute lymphoblastic leukemia (ALL). 6-MP is originally started at a standard dose in children with ALL, but the dose is adjusted according to the absolute neutrophil count (ANC). Occasionally, 6-MP doses need to be increased in order to get the ANC into a specific target range. Also, increasing the 6-MP dose can lead to unwanted side effects, such as inflammation of the liver as shown by increases in laboratory values (ALT, aspartate aminotransferase (AST), bilirubin), nausea, and abdominal discomfort. Previous studies in children with inflammatory bowel disease has shown that combining allopurinol with 6-MP can decrease side effects associated with high doses of 6-MP and also increase the efficacy of 6-MP. Allopurinol is approved by the Food and Drug Administration for the treatment of tumor lysis syndrome in ALL. Through this research study, the investigators hope to show that the combination of allopurinol and 6-MP will be safe, tolerable, and effective in children with ALL.

Detailed Description: * Patients will have several visits to the Pediatric Oncology outpatient clinic. Each visit will consist of a physical examination and laboratory evaluation. Each laboratory evaluation will consist of taking approximately 10-15 milliliters of blood (or approximately three teaspoons). These clinic visits may actually coincide with clinic visits that were previously scheduled according to the patient's treatment protocol. * At the first study visit, patients will have a physical examination and laboratory evaluation. At that visit, patients will be asked to stop taking 6-MP and methotrexate. * At the second study visit, which is one week later, patients will again have a physical examination and laboratory evaluation. The investigators will prescribe allopurinol and restart 6-MP and methotrexate at half of the patient's previous doses. * Clinic visits for physical examination and laboratory evaluation will be scheduled every 1-2 weeks for a total of 5 more visits. Doses of allopurinol, 6-MP, and methotrexate may be adjusted at these visits based on laboratory values or clinical symptoms.

Eligibility

Minimum Age:

Eligible Ages: CHILD, ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Johns Hopkins Hospital, Baltimore, Maryland, United States

Texas Children's Cancer and Hematology Centers, Houston, Texas, United States

Seattle Children's Hospital, Seattle, Washington, United States

Contact Details

Name: Stacy Cooper, MD

Affiliation: Johns Hopkins University

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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