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Ovarian Clear Cell CarcinomaPhase 1/2NCT05759312

Zimberelimab Plus Metformin for Recurrent Ovarian Clear Cell Carcinoma

A Phase 1/2 study testing Zimberelimab and Metformin Hydrochloride in people with Ovarian Clear Cell Carcinoma, run by Fudan University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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

Who is it for?
Ages 18 to 75 years, women only
Conditions the study is for
Ovarian Clear Cell Carcinoma
What is being tested?
Zimberelimab and Metformin Hydrochloride
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
No sites listed yet
Study dates
Mar 2023to Feb 2025
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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

Who cannot join

  • 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
Show all 10Show fewer
  • 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

Trial locations and contacts

No sites are listed yet.

About this study

Official title: Zimberelimab Combined With Metformin in the Treatment of Recurrent Ovarian Clear Cell Carcinoma: A Pilot Study

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

Read the detailed description

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.

Being tested
Zimberelimab, Metformin Hydrochloride
Keywords
Ovarian Clear Cell Carcinoma, Immune Checkpoint Inhibitor, Metformin

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ZimberelimabDrug

    Also called Anti PD-1

    Zimberelimab 240mg IV every 2 weeks

  • Metformin HydrochlorideDrug

    Also called Metformin

    Metformin 2000mg PO QD

Study groups in NCT05759312
Study groupRoleWhat they receive
zimberelimab plus metforminExperimentalPatients 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.
Receives: Drug: Zimberelimab; Drug: Metformin Hydrochloride

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Objective response rate

    The proportion of patients with complete response (CR) and partial response (PR) assessed by the investigator in accordance with the RECIST 1.1 criteria

    Measured: Up to 2 years

Secondary outcomes (6)
  1. Progression-free survival

    The time from entry into the study to the diagnosis of the first progression or recurrence or death, whichever occurs first

    Measured: Up to 2 years

  2. Overall survival

    The time from date of randomization until the date of death from any cause or last follow-up

    Measured: Up to 2 years

  3. Disease control rate

    The proportion of patients who achieved complete response (CR) or partial response (PR) or stable disease (SD) assessed by the investigator in accordance with the RECIST 1.1 criteria

    Measured: Up to 2 years

  4. Duration of response

    The time interval from the first record of disease response to disease progression or death (whichever occurs first)

    Measured: Up to 2 years

  5. Number of participants with treatment-related adverse events as assessed by CTCAE v5.0

    The adverse event assessed by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0

    Measured: Up to 2 years

  6. Patterns of subsequent recurrence

    The number and sites of subsequent recurrence, including pelvic, abdominal, retroperitoneal lymph nodes, hepato-celiac lymph nodes and distant metastases and ascites, etc.)

    Measured: Up to 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Mar 2023
  2. Study startMar 2023 (estimated)
  3. Primary completionFeb 2025 (estimated)
  4. Study completionFeb 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05759312
Sponsor's protocol ID
zsfud-OC-001
Status last verified
Feb 2023
First submitted
25 Feb 2023
Last updated
8 Mar 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Zimberelimab and Metformin Hydrochloride in people with Ovarian Clear Cell Carcinoma, run by Fudan University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 8 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Libing Xiang (862164041990 ext. 2801, xiang.libing@zs-hospital.sh.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Objective response rate (time frame: Up to 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Mar 2023.

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