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OncoMatch/Clinical Trials/NCT04536805

Relapse in Previously Irradiated Prostate Bed : Stereotactic Ablative Reirradiation Potentiated by Metformin

Is NCT04536805 recruiting? Yes, currently enrolling (May 2026). This Phase 1/2 trial studies Metformin for prostate cancer.

Phase 1/2RecruitingInstitut Cancerologie de l'OuestNCT04536805Data as of May 2026

Treatment: MetforminThis phase I/II escalation dose study is assessing the efficacy of the recommended dose of stereotactic re-irradiation (SBRT) of relapses within the prostatectomy bed, potentiated by metformin

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Extracted eligibility criteria

Cancer type

Prostate Cancer

Performance status

WHO 0–1

Prior therapy

Must have received: external radiotherapy — prostate lodge

Biochemical recurrence occurring at least 2 years after external radiotherapy to the prostate lodge and the end of hormone therapy

Must have received: hormone therapy

Biochemical recurrence occurring at least 2 years after external radiotherapy to the prostate lodge and the end of hormone therapy

Must have received: radical prostatectomy

for prostatic adenocarcinoma previously treated by radical prostatectomy

Cannot have received: metformin

Treatment with metformin in the last 3 months prior to inclusion

Cannot have received: investigational drug

Treatment with any investigational drug or participation in a clinical trial within 30 days prior to inclusion

Lab requirements

Kidney function

Creatinine clearance >= 45 mL/min

Creatinine clearance < 45 mL/min [excluded]

Structured fields extracted by AI. May contain errors — verify against the official protocol.

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