Zimberelimab Plus Metformin for Recurrent Ovarian Clear Cell Carcinoma

NCT ID: NCT05759312

Last Updated: 2023-03-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1/PHASE2

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-31

Study Completion Date

2025-02-28

Brief Summary

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This study aims to evaluate the safety and effectiveness of zimberelimab combined with metformin in treating relapsed/persistent ovarian clear cell carcinoma.

Detailed Description

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Ovarian clear cell carcinoma (OCCC) is one of the rare subtypes of ovarian cancer, yet its prognosis is extremely poor. Previous studies indicate that PD-1 inhibitors may have clinical benefits for OCCC patients. This single-arm, single-center, pilot study evaluates the safety and effectiveness of zimberelimab combined with metformin in treating relapsed/persistent ovarian clear cell carcinoma.

Conditions

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Ovarian Clear Cell Carcinoma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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zimberelimab plus metformin

Patients will start metformin at 1,000mg by mouth once daily during a 7-day induction period prior to starting zimberelimab. The dose will be increased by 500mg every 7 days until reaching the target dose of 2000mg. Zimberelimab will be administered at a fixed dose of 240 mg IV every 14 days. Treatment will continue until disease progression confirmed by RECIST criteria v1.1, intolerable toxicity, or withdrawal of consent.

Group Type EXPERIMENTAL

Zimberelimab

Intervention Type DRUG

Zimberelimab 240mg IV every 2 weeks

Metformin Hydrochloride

Intervention Type DRUG

Metformin 2000mg PO QD

Interventions

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Zimberelimab

Zimberelimab 240mg IV every 2 weeks

Intervention Type DRUG

Metformin Hydrochloride

Metformin 2000mg PO QD

Intervention Type DRUG

Other Intervention Names

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Anti PD-1 Metformin

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years to ≤ 75 years
* Pathologic confirmed ovarian clear cell carcinoma
* Patients with recurrent or persistent ovarian clear cell carcinoma must have at least one-line pretreated platinum-containing chemotherapy
* According to the definition of RECIST1.1, the patient must have measurable lesions
* PD-L1 Combined Positive Score ≥ 1
* ECOG performance status of 0 to 2
* Adequate bone marrow, liver, and renal function to receive combined immunotherapy
* Written informed consent

Exclusion Criteria

* Histological evidence of non-ovarian clear cell carcinoma
* Lack of tumor samples (archived and/or recently obtained)
* Previous administration of immunotherapy
* Patients have been vaccinated with the live vaccine or received anti-tumor treatment within 4 weeks before the first administration
* An active autoimmune disease that requires systemic treatment (such as the use of disease-relieving drugs, glucocorticoids, or immunosuppressive agents) within 2 years before the first administration
* Synchronous or metachronous (within 5 years) malignancy other than carcinoma in situ or breast cancer (without any signs of relapse or activity) Symptomatic or uncontrolled visceral metastases that require simultaneous treatment
* Patients are known to be allergic to the active ingredients or excipients of zimberelimab or metformin
* Known human immunodeficiency virus (HIV) infection history (HIV 1/2 antibody positive).
* Untreated active hepatitis B (defined as HBsAg positive and the number of copies of HBV-DNA detected at the same time is greater than the upper limit of the normal value of the laboratory department of the research center)
* Contraindications to metformin: kidney dysfunction or abnormal creatinine from any cause; acute or metabolic acidosis
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Fudan University

OTHER

Sponsor Role lead

Responsible Party

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Libing Xiang

Associate chief physician

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Libing Xiang

Role: PRINCIPAL_INVESTIGATOR

Department of Gynecologic Oncology, Zhongshan Hospital, Fudan University

Central Contacts

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Libing Xiang

Role: CONTACT

862164041990 ext. 2801

Yulian Chen

Role: CONTACT

862164041990 ext. 2801

Other Identifiers

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zsfud-OC-001

Identifier Type: -

Identifier Source: org_study_id

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