Carboplatin, Gemcitabine Hydrochloride, and Berzosertib in Treating Patients With Recurrent and Metastatic Ovarian, Primary Peritoneal, or Fallopian Tube Cancer

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PRIMARY OBJECTIVES: I. Assess safety and tolerability of the combination therapy carboplatin, gemcitabine hydrochloride (gemcitabine), and berzosertib (M6620 [VX-970]) in adult women with platinum sensitive recurrent high grade serous or high grade endometrioid ovarian, primary peritoneal or fallopi...

PRIMARY OBJECTIVES: I. Assess safety and tolerability of the combination therapy carboplatin, gemcitabine hydrochloride (gemcitabine), and berzosertib (M6620 [VX-970]) in adult women with platinum sensitive recurrent high grade serous or high grade endometrioid ovarian, primary peritoneal or fallopian tube cancer. (Phase I Dose Escalation/Safety Lead-in) II. Determine the dose of the triple therapy to be used in the dose expansion cohort of the study. (Phase I Dose Escalation/Safety Lead-in) III. Confirm the safety at the maximum tolerated dose (MTD) for the addition of M6620 (VX-970) to carboplatin and gemcitabine in first or second recurrence of platinum sensitive high grade serous or endometrioid ovarian, primary peritoneal or fallopian tube carcinoma. (Expansion Cohort) SECONDARY OBJECTIVES: I. To determine if the MTD for the combination of carboplatin, gemcitabine and M6620 (VX-970) improves the confirmed response rate in adult women with platinum sensitive recurrent high grade serous or high grade endometrioid ovarian, primary peritoneal or fallopian tube cancer. II. To determine the impact of the MTD on overall survival (OS), duration of response, and progression-free survival (PFS). INTEGRATED CORRELATIVE STUDY OBJECTIVES: I. Collection of specimens for biomarker studies to provide preliminary proof of mechanism. Assess, in an exploratory fashion, whether the combination of gemcitabine and carboplatin activates the ATR/CHK1 pathway at achievable concentrations and also whether M6620 inhibits the activated pathway. II. To determine whether increased deoxyribonucleic acid (DNA) damage as assessed by two different multiplex assays correlates with response to combination therapy with M6620 (VX-970). III. To determine whether mutations in homologous recombination repair genes correlate with response to combination therapy with M6620 (VX-970). IV. To ascertain modulation of ATR autophosphorylation and other pharmacodynamic readouts for ATR inhibition by M6620 (VX-970). OUTLINE: This is a dose-escalation study of gemcitabine hydrochloride and berzosertib. Patients receive carboplatin intravenously (IV) over 30 minutes on day 1, gemcitabine hydrochloride IV over 30 minutes on days 1 and 8, and berzosertib IV over 60 minutes on days 2 and 9. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 3 years.

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