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Genetic Testing Plus Irinotecan in Treating Patients With Solid Tumors or Lymphoma

2014-08-27 03:58:26 | BioPortfolio

Summary

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Genetic testing for a specific enzyme may help doctors determine whether side effects from or response to chemotherapy are related to a person's genetic makeup.

PURPOSE: Phase I trial to study genetic testing and the effectiveness of irinotecan in treating patients who have solid tumors and lymphoma.

Description

OBJECTIVES:

- Classify patients with solid tumors or lymphoma according to UGT1A1 promoter (TATA box) and coding region (Gly71Arg) mutation, and CYP3A4 promoter (G to A) polymorphisms.

- Identify UGT1A1 enzyme glucuronidator and irinotecan oxidizer phenotypes in these patients and determine the correlation between the two metabolic reactions in vivo.

- Determine the relationship between UGT1A1 genotype (promoter and/or coding region mutation) and CYP3A4 promoter genotype vs gastrointestinal or bone marrow toxicity, and pharmacokinetics of irinotecan in these patients.

- Determine the pharmacokinetics of irinotecan in these patients.

OUTLINE: Patients are genotyped for UGT1A1 enzyme and classified as "Gilbert's" (7/7), "heterozygotes" (6/7), and "homozygotes for allele 6" (6/6). The DNA is analyzed for the UGT1A1 coding region mutation (Gly71Arg) and CYP3A4 promoter polymorphism. Patients are also examined for glucuronidator ratio of SN-38, the active metabolite of irinotecan, and classified as "low/slow" (very low or zero SN-38G/SN-38 ratio), "intermediate" (less than 50% normal ratio), or "normal".

Patients receive irinotecan IV over 90 minutes once every 3 weeks. Treatment continues for at least 2 courses in the absence of disease progression or unacceptable toxicity.

PROJECTED ACCRUAL: A total of 30-60 patients will be accrued for this study within 20 months.

Study Design

Primary Purpose: Treatment

Conditions

Lymphoma

Intervention

irinotecan hydrochloride, mutation analysis

Location

University of Chicago Cancer Research Center
Chicago
Illinois
United States
60637

Status

Completed

Source

National Cancer Institute (NCI)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:58:26-0400

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Medical and Biotech [MESH] Definitions

A nitrogen mustard compound that functions as an ALKYLATING ANTINEOPLASTIC AGENT and is used in the treatment of CHRONIC LYMPHOCYTIC LEUKEMIA and NON-HODGKIN'S LYMPHOMA.

A leukemia/lymphoma found predominately in children and young adults and characterized LYMPHADENOPATHY and THYMUS GLAND involvement. It most frequently presents as a lymphoma, but a leukemic progression in the bone marrow is common.

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A form of undifferentiated malignant LYMPHOMA usually found in central Africa, but also reported in other parts of the world. It is commonly manifested as a large osteolytic lesion in the jaw or as an abdominal mass. B-cell antigens are expressed on the immature cells that make up the tumor in virtually all cases of Burkitt lymphoma. The Epstein-Barr virus (HERPESVIRUS 4, HUMAN) has been isolated from Burkitt lymphoma cases in Africa and it is implicated as the causative agent in these cases; however, most non-African cases are EBV-negative.

Two or more distinct types of malignant lymphoid tumors occurring within a single organ or tissue at the same time. It may contain different types of non-Hodgkin lymphoma cells or both Hodgkin and non-Hodgkin lymphoma cells.

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