Pemetrexed, Cisplatin, and Vitamin B12 in Treating Patients With Mesothelioma of the Chest That Cannot Be Removed by Surgery
RATIONALE: Pemetrexed may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as cisplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving pemetrexed together with cisplatin and vitamin B12 may kill more tumor cells.
PURPOSE: This phase II clinical trial is studying how well giving pemetrexed together with cisplatin and vitamin B12 works in treating patients with mesothelioma of the chest that cannot be removed by surgery.
Dietary Supplement: vitamin B12
Drug: pemetrexed disodium
Genetic: gene expression analysis
Other: laboratory biomarker analysis
Other: pharmacological study
|Study Design:||Allocation: Non-Randomized
Primary Purpose: Treatment
|Official Title:||Phase 2 Pharmacological Study of Pemetrexed Administered With Cisplatin and a Vitamin Supplement in Patients With Nonresectable Pleural Mesothelioma|
- Individual dosage-adapted protocol [ Designated as safety issue: No ]
- Relationship between pharmacokinetic and pharmacodynamic parameters [ Designated as safety issue: No ]
- Pharmacokinetics [ Designated as safety issue: No ]
- Pharmacogenetic variations (MTHFR, TS, GSTpi, ERCC1, XPD) [ Designated as safety issue: No ]
|Study Start Date:||June 2007|
|Primary Completion Date:||May 2011 (Final data collection date for primary outcome measure)|
- Define an individually adapted (by dosage) protocol of pemetrexed disodium, cisplatin, and vitamin B12 in patients with unresectable pleural mesothelioma.
- Determine the relationship between pharmacokinetic and pharmacodynamic parameters (hematologic and nonhematologic).
- Analyze the inter-individual pharmacokinetic variations and the influence of the covariables on the pharmacokinetics of pemetrexed disodium.
- Analyze the impact of pharmacogenetic (MTHFR, TS, GSTpi, ERCC1, XPD) variations on the toxicity of pemetrexed disodium.
- Validate a strategy of adapting dosage.
OUTLINE: This is a multicenter study.
Patients receive pemetrexed disodium IV over 10 minutes and cisplatin IV over 2 hours on day 1. Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Patients also receive vitamin B12 intramuscularly on day -7 and then every 9 weeks until chemotherapy is completed.
Blood samples are collected during the first and third courses of chemotherapy. Samples are analyzed by pharmacogenetic (MTHFR, TS, GSTpi, ERCC1, xPD), pharmacokinetic, and other pharmacological methods.