Clinical trial Recruiting at 12 sites Phase 1 Interventional Ages 18 and up Women only

Evaluating ZN-c3 for patients with ovarian cancer

Official title: A Phase 1b Study of ZN-c3 in Combination With Chemotherapy or Bevacizumab in Subjects With Ovarian, Peritoneal, or Fallopian Tube Cancer

Run by K-Group, Beta, Inc., a wholly owned subsidiary of Zentalis Pharmaceuticals, Inc · NCT04516447 · Data updated 2026-11-12

This study is testing a new treatment called ZN-c3 combined with other chemotherapy drugs to see if it is safe and effective for people with advanced ovarian cancer.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment172 (estimated)
SponsorK-Group, Beta, Inc., a wholly owned subsidiary of Zentalis Pharmaceuticals, Inc
Industry-sponsored
Drugs / interventionschemotherapy, bevacizumab
Locations35 sites (Aurora, Colorado and 34 other locations)
StatusRecruiting
StartedOctober 26, 2020
Main results expectedJune 30, 2028
Study endsJune 30, 2028
Registry record updatedNovember 9, 2026
Trial IDNCT04516447 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals with high-grade serous epithelial ovarian carcinoma who have received one or two prior lines of therapy.

Probably not a fit

Patients with low-grade tumors or those who have not received prior treatment may not benefit from this study.

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

What this trial studies

This Phase 1b open-label, multicenter study investigates the safety and tolerability of ZN-c3 in combination with other chemotherapy agents for patients with advanced ovarian cancer. The study aims to assess the preliminary clinical activity, pharmacokinetics, and pharmacodynamics of the treatment regimen. Eligible participants must have high-grade serous epithelial ovarian carcinoma or related conditions and have previously undergone one or two lines of therapy. The study will be conducted at multiple sites across the United States.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced ovarian cancer.

How similar studies have gone: Other studies have shown promise with similar combination therapies in treating ovarian cancer, suggesting potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
INCLUSION CRITERIA:

For Part 1:

* Histologically or cytologically confirmed FIGO Stage III/IV high-grade serous or endometrioid ovarian, fallopian tube, or peritoneal carcinoma.
* Subjects must have received 1 or 2 prior therapeutic regimens/lines of therapy in the advanced or metastatic setting. At least one regimen must have contained cisplatin or carboplatin.
* The disease must be platinum resistant (ie, the PFI must have been \< 6 months). Platinum refractory disease (ie, PD during first-line platinum-based therapy) is allowed.

For Part 2 Dose Escalation:

Prior therapy:

• Subjects must have received 6 cycles of platinum-based doublet chemotherapy in the 1L or 2L setting as their most recent therapy

Response to prior platinum therapy:

1. In the 1L setting: Complete Response, Partial Response, or Stable Disease to platinum-based chemotherapy.
2. In the 2L setting:

   1. Progressive Disease \>183 days after receiving the last dose of platinum chemotherapy in the 1L setting,
   2. Complete Response, Partial Response, or Stable Disease to 2L platinum-based chemotherapy.

      * Adequate hematologic, and organ function

For Part 2 Dose Expansion:

* Subjects must have at least 4 cycles of platinum-based chemotherapy in 2L and have Complete Response, Partial Response, or Stable Disease
* Subjects must have progressed while on a PARP inhibitor for 1L maintenance Additional protocol-defined inclusion criteria may apply

EXCLUSION CRITERIA:

* Histology of abdominal adenocarcinoma of unknown origin or diagnosis of a borderline ovarian tumor.
* Subjects with carcinosarcomas (even if there is a serous component)
* A serious illness or medical condition(s)
* Subjects with active (uncontrolled, metastatic) second malignancies or requiring therapy.

Additional protocol-defined exclusion criteria may apply

Where it's running

  • Site 0104
    Boston, Massachusetts, United States
    Recruiting
  • Site 0111
    St Louis, Missouri, United States
    Recruiting
  • Site 0173
    New York, New York, United States
    Recruiting
  • Site 0259
    Durham, North Carolina, United States
    Recruiting
  • Site 0191
    Providence, Rhode Island, United States
    Recruiting
  • Site 0103
    Houston, Texas, United States
    Recruiting
Show 29 more locations
  • Site 2718
    Sunshine Coast, Queensland, Australia
    Recruiting
  • Site 2716
    Melbourne, Victoria, Australia
    Recruiting
  • 3624
    Bordeaux, France
    Recruiting
  • 3601
    Dijon, France
    Recruiting
  • 3625
    Rennes, France
    Recruiting
  • 3603
    Toulouse, France
    Recruiting
  • Site 0264
    Aurora, Colorado, United States
    Active not recruiting
  • Site 0196
    Nashville, Tennessee, United States
    Completed
  • Site 2707
    South Brisbane, Queensland, Australia
    Completed
  • Site 2708
    Sunshine Coast, Queensland, Australia
    Completed
  • Site 2709
    Adelaide, South Australia, Australia
    Completed
  • Site 2706
    Melbourne, Victoria, Australia
    Completed
  • Site 2705
    Nedlands, Western Australia, Australia
    Completed
  • Site 1001
    Banja Luka, Bosnia and Herzegovina
    Completed
  • Site 1002
    Sarajevo, Bosnia and Herzegovina
    Completed
  • Site 1003
    Tuzla, Bosnia and Herzegovina
    Completed
  • Site 1202
    Panagyurishte, Bulgaria
    Completed
  • Site 1201
    Sofia, Bulgaria
    Completed
  • 3613
    Besançon, France
    Not yet recruiting
  • 3608
    Lyon, France
    Not yet recruiting
  • 3614
    Nantes, France
    Not yet recruiting
  • 3623
    Paris, France
    Not yet recruiting
  • 3604
    Paris, France
    Not yet recruiting
  • 3611
    Strasbourg, France
    Not yet recruiting
  • Site 1401
    Tbilisi, Georgia
    Completed
  • Site 1902
    Belgrade, Serbia
    Completed
  • Site 2901
    Busan, South Korea
    Completed
  • Site 2903
    Seoul, South Korea
    Completed
  • Site 2904
    Seoul, South Korea
    Completed

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.