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Spots Global Cancer Trial Database for Safety Study of ABT-888 Plus Topotecan Hydrochloride to Treat Patients With Solid Tumors and Lymphomas

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Trial Identification

Brief Title: Safety Study of ABT-888 Plus Topotecan Hydrochloride to Treat Patients With Solid Tumors and Lymphomas

Official Title: A Phase I Study of ABT-888 in Combination With Topotecan Hydrochloride in Adults With Refractory Solid Tumors and Lymphomas

Study ID: NCT00553189

Interventions

ABT-888
Topotecan

Study Description

Brief Summary: Background: * PARP is an enzyme that is involved in the repair of damage to DNA. Levels of the enzyme are higher in tumor cells than in normal cells, and may play a part in resistance to cancer chemotherapy and radiation therapy. ABT-888 is an experimental drug that inhibits PARP and may help to increase the effectiveness of cancer treatments designed to damage DNA in cancer cells. * Topotecan is a drug approved by the Food and Drug Administration for treating certain cancers. * This dose escalation study will test the two drugs at successively higher doses in small groups of patients until the highest safe dose is determined. Objectives: * To test the safety of the combination of ABT-888 and Topotecan (TPT) and determine the highest dose of each drug that can be safely given to humans. This is the maximum tolerated dose (MTD). * To learn how the combination of ABT-888 and TPT works in humans and how the body handles the drugs. * To determine the side effects of the combination of ABT-888 and TPT at the tested doses. Eligibility: -Patients with solid tumors, lymphomas and chronic lymphocytic leukemia whose disease has progressed following standard therapy or for whom standard treatments are not available. Design: * ABT-888 and TPT are given in 21-day treatment cycles. At the start of the study, TPT is infused through a vein over 30 minutes about a week before cycle 1 starts. Starting on day 1 of cycle 1, ABT-888 is given by mouth twice a day for 7 days. TPT is given through a vein daily for 4 days starting on day 2. After the last dose of ABT-888 day 7, no more treatment is given for the rest of the 21-day cycle. * For the remaining cycles, ABT-888 is given twice a day by mouth on days 1 to 7 of each cycle, and TPT is given through a vein daily on days 1 to 5 of each cycle. * The first three to six patients enrolled in the study take the smallest study dose of the drugs. If they do not develop significant adverse side effects, successive small groups of patients take the drug at increasingly higher doses until the MTD is reached. Additional patients enrolled receive the MTD. * Patients have periodic clinic visits for their TPT infusions and for tests and examinations. Evaluations include measurement of vital signs, physical examinations, blood and urine tests, electrocardiograms and CT or other imaging tests, such as ultrasound or MRI. Tumor biopsies may be requested to study the effects of the drugs on the...

Detailed Description: Background: * The PARP family of enzymes is characterized by the ability to poly (ADP-ribosyl)ate protein substrates. PARP-1 and PARP-2 play a critical role in the maintenance of genomic stability by regulating a variety of DNA repair mechanisms. * Poly (ADP-ribosylated) PARP-1 has been shown to block the formation of topo 1-DNA cleavage and accelerate the removal of camptothecin-stabilized topo 1-DNA complexes. PARP-1 inhibition may therefore prevent efficient repair of DNA damage induced by topoisomerase 1 inhibitors. ABT-888 is an oral PARP inhibitor and topotecan is a topoisomerase I inhibitor. Objectives: * Establish the safety and tolerability of the combination of ABT-888 with topotecan hydrochloride in patients with refractory solid tumors and lymphomas. * Establish the maximum tolerated dose of the combination of ABT-888 with topotecan hydrochloride. * Evaluate the pharmacokinetics of each agent alone and in combination. * Determine the effects of the study treatment on the level of PARP inhibition and DNA damage in PBMCs and tumor samples. Eligibility: * Patients with histologically documented solid tumors and lymphoid malignancies (lymphoma and CLL) whose disease has progressed following standard therapy or who have no acceptable standard treatment options. * No major surgery, radiation or chemotherapy within four weeks prior to study enrollment, and recovered from toxicities of prior therapies to at least eligibility levels. Study Design: * Cycle 1, dose levels -1 to 7 and 1B: Topotecan (TPT) will be administered intravenously over 30 minutes as a single dose on days 1-5. Starting on day 2, ABT-888 will be administered orally twice a day on a q12 hour schedule for 4 days (D2-5). Following the completion of study drug administration on day 5, no further treatment will be administered for the rest of this 21-day cycle. Growth factors will be administered prophylactically starting Cycle 1 to patients on dose level 1B only. * Cycle 2 and beyond, dose levels -1 to 7 and 1B: ABT-888 will be administered twice a day on a q12 hour schedule orally on days 1-5. TPT will be given IV daily from days 1-5, in a 21-day cycle. Growth factors will be administered prophylactically to patients on dose level 1B only. * All cycles, dose levels -2 and 1A to 5A: ABT-888 will be administered on day 1 only for dose levels -2 and 1A, 2A, 3A, and 4A. For dose level 5A, ABT-888 will be administered on days 1 and 2 of each cycle. TPT will be given IV daily from days 1-5, in a 21-day cycle. * Dose escalation will proceed as outlined below. Once maximum tolerated dose (MTD) is established, 6 additional patients will be enrolled at the MTD to further define the dose and evaluate PD studies at this dose level.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

National Institutes of Health Clinical Center, 9000 Rockville Pike, Bethesda, Maryland, United States

Contact Details

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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