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Study of Oral Debio 0123 in Combination With Carboplatin in Participants With Advanced Solid Tumors

A Phase 1 Study of Oral Debio 0123 in Combination With Carboplatin in Patients With Advanced Solid Tumors

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03968653
Enrollment
76
Registered
2019-05-30
Start date
2019-07-30
Completion date
2025-10-23
Last updated
2025-12-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors

Keywords

WEE1-inhibitor

Brief summary

This study has two parts: Dose Escalation and Dose Expansion. The primary objective of the study, in the Dose Escalation Part is to determine the recommended phase 2 dose (RP2D) of Debio 0123 when administered in combination with carboplatin in participants with advanced solid tumors that recurred or progressed after prior cisplatin or carboplatin containing therapy and for which no standard therapy of proven benefit is available. The primary objective of the study, in the Dose Expansion Part is to characterize the safety and tolerability of Debio 0123 when administered in combination with carboplatin at the RP2D determined during the dose escalation part of the study and to evaluate the preliminary antitumor activity of Debio 0123 when administered in combination with carboplatin.

Interventions

Debio 0123 will be given as an oral capsule for 3 days during each 21-day cycle, except Cycle 1 which is of 24 days.

DRUGCarboplatin

Carboplatin will be given as an IV infusion in combination with Debio 0123 on Day 1 from Cycle 2 onwards in Group A.

Sponsors

Debiopharm International SA
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Dose Escalation: * Histologically or cytologically confirmed locally advanced or metastatic solid and nonbleeding tumors that had recurred or progressed following standard therapy, has not responded to standard therapy or for which no standard therapy of proven benefit is available * Able and willing to undergo tumor biopsy * Prior platinum-based therapy (carboplatin or cisplatin). * Life expectancy of at least 3 months * ECOG PS 0-1 Dose Expansion: * Histologically or cytologically confirmed, recurrent solid tumors of selected types. * Participants must have progressed after at least 1 prior platinum-based line of therapy for advanced/metastatic disease. * Participants must be platinum resistant (defined as progression within 6 months of completion of their most recent platinum-based chemotherapy). Prior poly (ADP-ribose) polymerase (PARP) inhibitor therapy is allowed. Platinum-based therapy does not need to be the last treatment prior to study entry. * Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 * Documented progressive or recurrent disease according to RECIST 1.1 since the last anti-cancer therapy and prior to study entry * Able and willing to undergo tumor biopsy * ECOG PS 0-1 * Life expectancy of at least 3 months

Exclusion criteria

Dose Escalation and Dose Expansion: * History of other malignancies requiring active treatment in the last 6 months * Brain tumors and/or symptomatic brain metastases * Receiving other investigating agents * Presence of significant cardiovascular disease or other co-morbidities such as symptomatic ascites * Prior exposure to any WEE1 inhibitor

Design outcomes

Primary

MeasureTime frame
Dose Escalation: Recommended Phase 2 Dose (RP2D) of Debio 0123 When Administered in Combination with Carboplatin2 Cycles i.e., 45 days (Cycle 1 = 24 days; Cycle 2 onwards = 21 day-cycles)
Dose Expansion: Percentage of Participants with Treatment-Emergent Serious Adverse Events (SAEs)Up to 46 months
Dose Expansion: Percentage of Participants with Treatment Discontinuations and Treatment Modifications Due to Adverse Events (AEs) and Laboratory AbnormalitiesUp to 46 months
Dose Expansion: Overall Response Rate (ORR)From the start of study treatment until disease progression/recurrence is documented or analysis cut-off, whichever occurs first (up to 46 months)

Secondary

MeasureTime frameDescription
Dose Escalation: Percentage of Participants with Dose Limiting Toxicities (DLTs) of Debio 0123 When Administered in Combination with Carboplatin2 Cycles i.e., 45 days (Cycle 1 = 24 days; Cycle 2 onwards = 21 day-cycles)
Dose Escalation: Percentage of Participants with Treatment-Emergent SAEsUp to 46 months
Dose Escalation: Percentage of Participants with TEAEs and Laboratory AbnormalitiesUp to 46 months
Dose Escalation: Percentage of Participants with Treatment Discontinuations and Treatment Modifications Due to Adverse Events (AEs) and Laboratory AbnormalitiesUp to 46 months
Dose Escalation: Number of Participants with Changes in Vital SignsDay 1 of each cycle (up to 46 months) [Group A: Cycle 1 = 24 days, Cycle 2 onwards and all cycles in Group B = 21-day cycles]
Dose Escalation: Number of Participants with Changes in ECGUp to 46 months
Number of Participants with Change in Eastern Cooperative Oncology Group Performance Status (ECOG PS)Day 1 of each cycle (up to 46 months) [Group A: Cycle 1 = 24 days, Cycle 2 onwards and all cycles in Group B = 21-day cycles]
Dose Escalation: Group A: Plasma Concentration of Debio 0123Day -3 to predose Day 1; postdose at multiple time points from Day 3 to Day 21 in Cycle 1 (Cycle 1 = 24 days), Day 1 on Cycle 2 (Cycle 2 onwards = 21 day-cycles) and subsequent cycles (Up to 46 months)The pharmacokinetics (PK) of Debio 0123 will be evaluated in plasma.
Dose Escalation: Group A: Concentration of Debio 0123 in UrineDay -3 to Day 21 Cycle 1 (Cycle 1 = 24 days)The PK of Debio 0123 will be evaluated in urine.
Dose Escalation: Group A: Area Under the Concentration Curve Over the Time 0 to Infinity (AUC∞) of Free Platinum in Plasma Ultrafiltrate of Carboplatin in CombinationDay 1 to Day 21 Cycle 2 (Cycle 2 onwards = 21 day-cycles) and subsequent cycles (Up to 46 months)
Dose Escalation: Group B: Plasma Concentration of Debio 0123Cycle 1 to Cycle 3: Days 1 and 10 (cycle length = 21 days)The PK of Debio 0123 will be evaluated in plasma.
Dose Escalation: Group B: Concentration of Free Platinum in Plasma of CarboplatinCycle 1 Day 1 (cycle length = 21 days)
Dose Escalation: Correlation Between Plasma Concentration of Debio 0123 and Changes in QT Interval Corrected Using Fridericia's Formula (QTcF)Up to 46 months
Dose Escalation: Tumor ResponseFrom the start of study treatment until disease progression/recurrence is documented or analysis cut-off, whichever occurs first (Up to 46 months)
Dose Escalation: Progression Free-Survival (PFS)From the start of study treatment until disease progression or death from any cause, whichever occurs first (Up to 46 months)
Dose Escalation: Overall Survival (OS)From the start of study treatment until death from any cause (Up to 46 months)
Dose Expansion: Best Overall Response (BOR)From the start of study treatment until disease progression/recurrence is documented or analysis cut-off, whichever occurs first (Up to 46 months)
Dose Expansion: Disease Control RateFrom the start of study treatment until disease progression/recurrence is documented or analysis cut-off, whichever occurs first (Up to 46 months)
Dose Expansion: Number of Participants with Best Change in Tumor SizeFrom the start of study treatment until disease progression/recurrence is documented or analysis cut-off, whichever occurs first (Up to 46 months)
Dose Expansion: Duration of Response (DOR)Up to disease progression (Up to 46 months)
Dose Expansion: Time to Progression (TTP)Time from treatment initiation until objective tumor progression (Up to 46 months)
Dose Expansion: Plasma Concentration of Debio 0123Cycle 1 and Cycle 2: Days 1, 3, 8 and 15 (cycle length = 21 days)

Countries

Netherlands, Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026