Overview Study in Patients With SCLC of Veliparib in Combination With Topotecan Status: Recruiting Trial end date: 2021-06-01 Target enrollment: Participant gender: Summary Phase I/II Study in Patients With Small Cell Lung Cancer (SCLC) of Veliparib in Combination With Topotecan Phase: Phase 1 Details Lead Sponsor: Central European Society for Anticancer Drug ResearchTreatments: Poly(ADP-ribose) Polymerase InhibitorsTopotecanVeliparib