South Texas Accelerated Research Therapeutics (START) Midwest 49546 Grand Rapids United StatesRekrutierend» Google-MapsSouth Texas Accelerated Research Therapeutics (START) 78229 San Antonio United StatesRekrutierend» Google-MapsHospital Universitari Vall d'Hebron 08035 Barcelona SpainNoch nicht rekrutierend» Google-Maps
Institut Catala de Oncologia 17007 Girona SpainNoch nicht rekrutierend» Google-MapsClinica Universidad de Navarra 28027 Madrid SpainNoch nicht rekrutierend» Google-MapsSTART Madrid. Hospital Fundación Jimenez Diaz 28040 Madrid SpainNoch nicht rekrutierend» Google-MapsHospital Universitario 12 de Octubre 28041 Madrid SpainNoch nicht rekrutierend» Google-MapsHospital Universitario La Paz 28046 Madrid SpainNoch nicht rekrutierend» Google-MapsClinica Universidad de Navarra 31008 Pamplona SpainNoch nicht rekrutierend» Google-MapsIstituto Oncologico della Svizzera italiana - Ente Ospedaliero Cantonale 6500 Bellinzona SwitzerlandNoch nicht rekrutierend» Google-MapsUniversitätsspital Zürich, Dermatologische Klinik 8058 Zürich SwitzerlandAbgeschlossen» Google-Maps
1. Part 1: Maximum Tolerated Dose (MTD) as Determined by Percentage of Participants with Dose Limiting Toxicities (DLTs) (Time Frame - Cycle 1 (each cycle is 21 days))
2. Part 1: Recommended Phase 2 Dose (RP2D) as Determined by Percentage of Participants with DLTs and Cumulative Safety Data (Time Frame - Cycle 1 (each cycle is 21 days))
3. Part 2: Percentage of Participants with Serious Adverse Events (SAEs) (Time Frame - Up to 30 days after the last dose of study treatment (up to 13 months))
4. Part 2: Percentage of Participants with Treatment-Emergent Adverse Events (TEAEs) and Laboratory Abnormalities (Time Frame - Up to 30 days after the last dose of study treatment (up to 13 months))
5. Part 2: Percentage of Participants with Treatment Discontinuations and Treatment Modifications due to Adverse Events (AEs) and Laboratory Abnormalities (Time Frame - Up to end of study treatment (up to 12 months))
6. Part 2: Overall Response Rate (ORR) (Time Frame - From the start of study treatment until disease progression (up to 12 months))
Secondary outcome:
1. Part 1: Percentage of Participants with SAEs (Time Frame - Up to 30 days after the last dose of study treatment (up to 13 months))
2. Part 1: Percentage of Participants with TEAEs and Laboratory Abnormalities (Time Frame - Up to 30 days after the last dose of study treatment (up to 13 months))
3. Part 1: Plasma Concentration of Debio 0123 (Time Frame - Pre-dose and at multiple time points up to 8 hours (h) on Day 1, Cycle 1 in Part 1 and 4 h on Day 1, Cycle 1 in Part 2 (each cycle is 21 days)): The pharmacokinetics (PK) of Debio-0123 will be evaluated in plasma.
4. Parts 1 and 2: Anti-Tumor Activity as Assessed by Percentage of Participants with Tumor Response (Time Frame - Parts 1 and 2: Up to 12 months)
Experimental: Part 1: Dose Escalation Participants will receive Debio 0123 orally in escalating dose cohorts during each 21-day treatment cycle until progression of disease, unacceptable toxicity, participant's withdrawal, or Investigator's decision, whichever occurs first.
Experimental: Part 2: Expansion Debio 0123 at the RP2D established in Part 1 participants with uterine serous carcinoma (USC) (arm A), recurrent or progressive, high-grade epithelial ovarian cancer (EOC) with cyclin E1-driven selection (arm B), and solid tumor with biomarker-driven selection (arm C).