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Study identifier: NCT05765812 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Study of Debio 0123 in Combination With Temozolomide in Adult Participants With Recurrent or Progressive Glioblastoma and of Debio 0123 in Combination With Temozolomide and Radiotherapy in Adult Participants With Newly Diagnosed Glioblastoma

Condition: Glioblastoma IDH (Isocitrate Dehydrogenase) Wildtype · Astrocytoma, Grade III  ·  Sponsor: Debiopharm International SA

PhasePhase 1/Phase 2
Planned participants116
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The primary purpose of the Phase 1 (Dose Escalation) of this study is to identify the dose-limiting toxicities (DLTs) of Debio 0123 combined with temozolomide (TMZ) (Arm A) and with TMZ and radiotherapy (RT) (Arms B and C) and to characterize the safety and tolerability of these combinations in adult participants with glioblastoma (GBM). Arm B which was previously added to the protocol, has been permanently halted per the safety monitoring committees' decision on the safety findings of this arm. The primary purpose of Phase 1 (Dose expansion) of the study is to assess the doses studied under Phase 1 (Dose Escalation) Arm A and identify the recommended dose (RD) for further development. The Phase 2 will start once the RD Phase 1 has been defined. The primary objective of Phase 2 is to assess the efficacy of Debio 0123 at the RD for further development in combination with TMZ, compared to the standard of care (SOC) in adult participants with GBM.

This description comes directly from the study's public registry record.

Talk to the study team

Debiopharm International S.A  ·  +41 21 321 01 11  ·  clinicaltrials@debiopharm.com

Always discuss trial participation with your own doctor first.

Locations (16)

Northwestern Memorial HospitalChicago, Illinois, United StatesRecruiting
New York University Langone Medical CenterNew York, New York, United StatesRecruiting
David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer CenterNew York, New York, United StatesRecruiting
Baylor Scott & White Research InstituteDallas, Texas, United StatesRecruiting
The University of Texas MD Anderson Cancer CenterHouston, Texas, United StatesRecruiting
South Texas Accelerated Research Therapeutics (START)San Antonio, Texas, United StatesRecruiting
Huntsman Cancer InstituteSalt Lake City, Utah, United StatesRecruiting
Fred Hutchinson Cancer Research CenterSeattle, Washington, United StatesRecruiting
Hospital Universitario Vall d'HebronBarcelona, SpainRecruiting
Hospital Universitario DonostiaDonostia / San Sebastian, SpainRecruiting
Clinica Universidad de Navarra (CUN)Madrid, SpainRecruiting
South Texas Accelerated Research Therapeutics (START)Madrid, SpainRecruiting

+ 4 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05765812