Abstract

TPS5611 Background: Endometrial cancer (EC) patients with advanced and recurrent disease relapse despite treatment with combination chemotherapy and have a short progression-free survival (PFS). With the emerging clinical data on anti-angiogenic agents and with promising results of nintedanib in ovarian cancer, it is apparent to explore its role in EC. Nintedanib is a potent, orally available triple receptor tyrosine kinase inhibitor targeting VEGFR 1-3, PDGFR α/β, and FGFR 1-3. This placebo-controlled, multicenter, two-arm, phase 2 trial compares nintedanib versus placebo as concomitant and maintenance therapy in combination with chemotherapy in patients with advanced or recurrent EC. Methods: The primary objective of this trial is to evaluate efficacy of nintedanib against placebo in combination with chemotherapy, defined by PFS. Key eligibility criteria include: histologically confirmed EC, stage 3C 2 or 4 A & B or relapsed after adjuvant therapy for stage 1-3 disease; prior surgery; adjuvant chemotherapy; radiation therapy; hormonal therapy are permitted; measurable/non-measurable disease. 148 patients will be randomized 1:1 to receive nintedanib 200mg twice daily or placebo days 2-21 during chemotherapy (six cycles of Carboplatin (AUC5) and paclitaxel (175mg/m2) every 21 days) and continuously in maintenance phase. Nintedanib/placebo is continued until disease progression, unacceptable toxicity, or withdrawal. Secondary endpoints include PFS in sub-populations, PFS2, disease specific survival, time to first subsequent therapy, time to second subsequent therapy, overall survival, objective response, disease control rate, patient reported outcoms (assessed via EORTC QLQ-C30 and EORTC QLQ-EN24) and safety. Trial is enrolling patients. The following cooperative groups are participating: NSGO (DK, FIN, SWE, NOR), NOGGO (GER), BGOG (BEL), & GINECO (FRA). Clinical trial information: NCT02730416.

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