Clinical trial Recruiting at 83 sites Phase2; Phase3 Interventional Ages 18 and up Women only

Navtemadlin for maintenance therapy in advanced endometrial cancer

Official title: A Phase 2/3 Study of Navtemadlin as Maintenance Therapy in Subjects With TP53WT Advanced or Recurrent Endometrial Cancer Who Responded to Chemotherapy

Run by Kartos Therapeutics, Inc. · NCT05797831 · Data updated 2026-11-12

This study is testing if a new treatment called navtemadlin can help people with advanced endometrial cancer stay in remission after responding to previous chemotherapy.

More Endometrial Cancer trials

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment268 (estimated)
SponsorKartos Therapeutics, Inc.
Industry-sponsored
Drugs / interventionschemotherapy
Locations83 sites (Vallejo, California and 82 other locations)
StatusRecruiting
StartedJuly 17, 2023
Main results expectedAugust 2025
Study endsJuly 2027
Registry record updatedMay 2, 2024
Trial IDNCT05797831 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients with TP53 wild-type advanced or recurrent endometrial cancer who have completed chemotherapy and achieved a response.

Probably not a fit

Patients with sarcomas, small-cell carcinomas, or those who have received prior immune or investigational therapies 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 study evaluates the use of navtemadlin as a maintenance treatment for patients with advanced or recurrent endometrial cancer who have shown a complete or partial response to prior chemotherapy. The trial is divided into two parts: the first part assesses the safety and efficacy of two different doses of navtemadlin compared to an observational control arm, while the second part compares the selected Phase 3 dose of navtemadlin to a placebo. The goal is to determine the optimal dosing and effectiveness of navtemadlin in prolonging patient responses.

Why it matters

Potential benefit: If successful, this treatment could provide a new maintenance therapy option that improves outcomes for patients with advanced endometrial cancer.

How similar studies have gone: While there have been studies on maintenance therapies in cancer, the specific use of navtemadlin in this context is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ECOG 0-1
* Histologically or cytologically confirmed diagnosis of endometrial cancer documented as TP53WT
* Subjects with advanced or recurrent disease must have completed a single line of up to 6 cycles of taxane-platinum based chemo and achieved a CR or PR per RECIST V1.1
* Adequate hematologic, hepatic and renal function (within 14 days)

Exclusion Criteria:

* Has any sarcomas or small-cell carcinomas with neuroendocrine differentiation
* Prior immune therapy, cytokine therapy, or any investigational therapy (within 28 days)
* Indwelling surgical drains
* Grade 2 or higher QTc prolongation
* History of major organ transplant
* History of bleeding diathesis; major hemorrhage or intracranial hemorrhage (within 24 weeks)

Where it's running

  • Kaiser Permanente Center
    Vallejo, California, United States
    Recruiting
  • Northside Hospital
    Atlanta, Georgia, United States
    Recruiting
  • St. Joseph
    Savannah, Georgia, United States
    Recruiting
  • Dr. Sudarshan K. Sharma, Ltd.
    Hinsdale, Illinois, United States
    Recruiting
  • Parkview Research Center
    Fort Wayne, Indiana, United States
    Recruiting
  • Indiana University
    Indianapolis, Indiana, United States
    Recruiting
Show 44 more locations
  • Maryland Oncology Hematology, P.A.
    Silver Spring, Maryland, United States
    Recruiting
  • Minnesota Oncology Hematology, P.A.
    Minneapolis, Minnesota, United States
    Recruiting
  • Washington University School of Medicine
    St Louis, Missouri, United States
    Recruiting
  • Women's Cancer Center of Nevada
    Las Vegas, Nevada, United States
    Recruiting
  • Good Samaritan Hospital Medical Center
    West Islip, New York, United States
    Recruiting
  • FirstHealth Carolinas
    Pinehurst, North Carolina, United States
    Recruiting
  • OhioHealth Institute
    Columbus, Ohio, United States
    Recruiting
  • Oklahoma Cancer Specialists and Research Institute
    Tulsa, Oklahoma, United States
    Recruiting
  • Oncology Associates of Oregon
    Eugene, Oregon, United States
    Recruiting
  • Northwest Cancer Specialists
    Portland, Oregon, United States
    Recruiting
  • Texas Oncology-Austin Central
    Austin, Texas, United States
    Recruiting
  • Texas Oncology-Fort Worth Cancer Center
    Fort Worth, Texas, United States
    Recruiting
  • Texas Oncology-San Antonio Medical Center
    San Antonio, Texas, United States
    Recruiting
  • University Hospital Graz, Department of Gynecology and Obstetrics
    Graz, Austria
    Recruiting
  • Medizinische Universität Innsbruck
    Innsbruck, Austria
    Recruiting
  • Medizinische Universität Wien
    Vienna, Austria
    Recruiting
  • Cross Cancer Institute
    Edmonton, Canada
    Recruiting
  • CHUM - University of Montreal Hospital Centre
    Montreal, Canada
    Recruiting
  • Odense University Hospital
    Odense, Denmark
    Recruiting
  • Tartu University Hospital
    Tartu, Estonia
    Recruiting
  • Kuopio University Hospital
    Kuopio, Finland
    Recruiting
  • Turku University Hospital
    Turku, Finland
    Recruiting
  • LTD High Technology hospital Medcenter
    Batumi, Georgia
    Recruiting
  • American Hospital Network LLC
    Tbilisi, Georgia
    Recruiting
  • Caucasus Medical Centre
    Tbilisi, Georgia
    Recruiting
  • National Institute of Oncology
    Budapest, Hungary
    Recruiting
  • University of Debrecen Clinical Center
    Debrecen, Hungary
    Recruiting
  • Rambam Medical Center
    Haifa, Israel
    Recruiting
  • Shaare Zedek Medical Center
    Jerusalem, Israel
    Recruiting
  • Sourasky Medical Center
    Tel Aviv, Israel
    Recruiting
  • A.O. Cannizzaro
    Catania, Italy
    Recruiting
  • IRCCS Istituto Romangolo per lo Studio dei Tumori "Dino Amadori"
    Forlì, Italy
    Recruiting
  • Ospedale Policlinico San Martino
    Genoa, Italy
    Recruiting
  • ASST di Lecco-Ospedale Alessandro Manzoni
    Lecco, Italy
    Recruiting
  • Ospedale San Luca
    Lucca, Italy
    Recruiting
  • Osp. Niguarda
    Milan, Italy
    Recruiting
  • University Hospital of Parma
    Parma, Italy
    Recruiting
  • Ospedale Guglielmo da Saliceto
    Piacenza, Italy
    Recruiting
  • Ospedale di Prato S. Stefano
    Prato, Italy
    Recruiting
  • Ospedale Santa Maria delle Croci
    Ravenna, Italy
    Recruiting
  • "Azienda Unità Sanitaria Locale della Romagna - Hospital ""Infermi"" of Rimini Oncology Department"
    Rimini, Italy
    Recruiting
  • Policlinico Umberto
    Rome, Italy
    Recruiting
  • Ospedale Filippo Del Ponte
    Varese, Italy
    Recruiting
  • Health Sciences Kaunas Clinics
    Kaunas, Lithuania
    Recruiting

+33 more sites. See ClinicalTrials.gov for the full list.

Study contacts

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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.