Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 75 Women only

Disitamab vedotin (RC48) with AK104 and bevacizumab for recurrent or persistent clear cell ovarian cancer

Official title: Disitamab Vedotin (RC48) in Combination With AK104 (PD-1/CTLA-4 Bispecific) and Bevacizumab for the Treatment of Recurrent and Persistent Clear Cell Ovarian Cancer

Run by Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University · NCT06540729 · Data updated 2026-11-12

This trial tests whether combining a HER2-targeted antibody–drug conjugate (disitamab vedotin) with the PD-1/CTLA-4 bispecific AK104 and bevacizumab helps people with recurrent or persistent ovarian clear cell carcinoma.

More Ovary Cancer trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 75 Years
SexWomen only
Enrollment39 (estimated)
SponsorSun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Academic / other
Drugs / interventionsbevacizumab, chemotherapy, immunotherapy, Disitamab
Locations1 site (Guanzhou, Guangdong)
StatusRecruiting
StartedSeptember 24, 2024
Main results expectedAugust 1, 2028
Study endsAugust 1, 2030
Registry record updatedAugust 27, 2026
Trial IDNCT06540729 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with recurrent or persistent ovarian clear cell carcinoma, HER2 IHC ≥1+, at least one measurable lesion per RECIST 1.1, and who have received no more than two prior lines of chemotherapy are ideal candidates.

Probably not a fit

Patients with no HER2 expression (IHC 0), who have had more than two prior chemotherapy regimens, or who cannot tolerate immunotherapy or anti-angiogenic therapy are less likely to benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a single-arm, phase II multicenter trial of disitamab vedotin (RC48) combined with AK104 and bevacizumab in patients with recurrent or persistent ovarian clear cell carcinoma. The rationale is that anti-angiogenic therapy and immune checkpoint modulation may synergize in this tumor type and that HER2-directed ADCs can both directly kill tumor cells and modulate anti-tumor immunity. Key eligibility includes pathologically confirmed OCCC (≥70% clear cell if mixed), HER2 IHC ≥1+, at least one measurable lesion by RECIST 1.1, and up to two prior lines of chemotherapy. The study will administer the three-drug combination and measure anti-tumor activity and safety outcomes including response rate and adverse events.

Why it matters

Potential benefit: If successful, the combination could produce higher tumor response rates and extend survival for patients with recurrent or persistent ovarian clear cell carcinoma compared with current options.

How similar studies have gone: Prior studies have shown activity for HER2-targeted ADCs in ovarian cancer and promise for combining anti-angiogenesis with immunotherapy, but the three-way combination in OCCC is novel and not yet widely tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* The pathological diagnosis confirms ovarian clear cell carcinoma. In cases of mixed carcinoma, a prerequisite is that clear cell carcinoma constitutes at least 70% of the tumor mass. Moreover, adherence to RECIST 1.1 criteria mandates the presence of at least one evaluable lesion.
* HER2 IHC ≥1+.
* Treatment-naïve individuals encompass those experiencing tumor progression during postoperative chemotherapy and those who, following platinum-containing neoadjuvant chemotherapy, have not undergone surgical intervention yet and subsequently manifested progression during or after platinum-containing chemotherapy, provided that they have received a maximum of 2 prior lines of chemotherapy.
* Recurrent patients, whether platinum-sensitive or platinum-resistant, include those lacking a platinum-free interval of ≥6 months and who, post-recurrence, have undergone re-administration of platinum-containing chemotherapy but have demonstrated an inability to tolerate toxic reactions, with a maximum of 2 lines of chemotherapy post-recurrence.
* Previous utilization of bevacizumab is permissible.
* Adequate bone marrow reserve function necessitates pre-operative blood routine parameters meeting specific criteria: white blood cell count ≥3.0×10\^9/L, neutrophil count ≥1.5×10\^9/L, platelet count ≥100×10\^9/L, and hemoglobin ≥80 g/L.
* atisfactory organ function entails biochemical test results within defined limits: AST ≤2.5× upper limit of normal (ULN), ALT ≤2.5× ULN, serum total bilirubin ≤1.5× ULN, and creatinine ≤1.5× ULN.
* ECOG performance status score ranging from 0 to 1.
* Patient participation is contingent upon voluntary execution of an informed consent form.

Exclusion Criteria:

* Patients diagnosed with other malignancies within the past five years, excluding skin cancer and thyroid cancer.
* Patients with an expected survival of ≤12 weeks.
* Patients with a known allergy to taxane-based medications.
* Patients who, based on clinical assessment, have contraindications for receiving immunotherapy and/or bevacizumab, such as uncontrolled infections, gastrointestinal fistula, autoimmune diseases, active hepatitis, or active bleeding.

Patients currently undergoing treatment with investigational anti-cancer drugs in other clinical trials.

* Patients with any unstable condition or situation that may compromise their safety or adherence to the study protocol.

Where it's running

  • Sun Yat-sen Memorial Hospital
    Guanzhou, Guangdong, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.