A Phase I/II Trial of ABT-888, an Inhibitor of Poly (ADP-ribose) Polymerase (PARP), and Topotecan (TPT) in Patients With Solid Tumors (Phase I) and Relapsed or Refractory Ovarian Cancer or Primary Peritoneal Cancer (Phase II) After Prior Platinum Containing First-Line Chemotherapy
Location:
Rochester, Minn., Jacksonville, Fla., Phoenix/Scottsdale, Ariz.
Trial status:
Open for Enrollment
Why is this study being done?
PRIMARY OBJECTIVES:
I. To determine the maximum tolerated dose of the combination of ABT-888 (veliparib) and weekly topotecan (topotecan hydrochloride) in adult patients with advanced solid tumors. (Phase I) II. To identify any anti-tumor activity of this treatment combination, as assessed by objective response in patients with advanced solid tumors. (Phase I) III. To assess the confirmed response rate for patients with epithelial ovarian cancer or primary peritoneal carcinoma treated with the combination of ABT-888 and weekly topotecan.
IV. To assess the toxicity of the combination of ABT-888 and weekly topotecan in patients with epithelial ovarian cancer or primary peritoneal carcinoma. (Phase II)
SECONDARY OBJECTIVES:
I. To identify any pharmacokinetic interactions between ABT-888 and topotecan. (Phase I and II) II. Phase I MTD: to provide preliminary view as to difference in response and toxicity based on BRCA mutation status. (Phase I) III. To determine whether topotecan stimulates adenosine diphosphate (ADP)-ribose polymer formation in circulating peripheral blood mononuclear cells. (Phase I) IV. To determine whether ABT-888 inhibits basal or topotecan-stimulated ADP-ribose polymer formation. (Phase I) V. To determine whether topotecan stimulates ADP-ribose polymer formation in circulating tumor cells and whether ABT-888 modulates this. (Phase II) VI. To assess differences in the toxicity and/or efficacy of this regimen based on BRCA 1/2 mutational status. (Phase II) VII. To determine whether pretreatment tumor cell levels of topoisomerase I, poly ADP-ribose polymerase (PARP), BRCA1, BRCA2, XRCC1, tyrosyl-deoxyribonucleic acid (DNA) phosphodiesterase 1 (TDP1), P-glycoprotein or breast cancer resistance protein (BCRP) predict response to this regimen. (Phase II) VIII. To identify, in an exploratory manner, any transcriptional profiles that may predict response to this regimen. (Phase II)
OUTLINE: This is a phase I, dose escalation study of veliparib and topotecan hydrochloride followed by a phase II study.
Patients receive veliparib orally (PO) on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and topotecan hydrochloride intravenously (IV) over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 3 months (Phase I) or every 3 or 6 months for 5 years (Phase II).
NCT ID:
NCT01012817
IRB Number:
09-000742
Who can I contact for additional information about this study?
Rochester: Charles Erlichman 507-538-7623
Scottsdale: Donald W. Northfelt 507-538-7623
Jacksonville: Michael E. Menefee 904-953-7290