Phase 2 Endometrial Cancer Trial, Recruiting NCT06518564 Sponsor: Panagiotis Konstantinopoulos, MD, PhD Condition: Endometrial Cancer
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Phase 2 Endometrial Cancer Trial, Recruiting

NCT06518564
Recruiting Phase 2

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • People who have endometrial cancer with a specific genetic change called an ARID1A loss-of-function mutation, confirmed by an approved genetic test and verified by the lead doctor before joining.
  • People who have at least one tumour that can be measured using scans or physical examination, meeting specific size requirements set by the trial.
  • People who have previously received at least one chemotherapy treatment for their endometrial cancer (prior hormone therapy is also allowed, with no waiting period required after stopping it).
  • People who have previously received an immunotherapy drug that targets the PD-1 or PD-L1 pathway at any stage of their treatment (up to 12 participants who have not had this type of immunotherapy may also be considered).
  • People aged 18 or older.
  • People whose general physical functioning falls within an acceptable range, as assessed using a standard scale called the ECOG performance status (scores of 0, 1, or 2).
  • People who can provide a stored tissue sample from their cancer — either a tissue block or 15 prepared slides from a previous surgery or biopsy.
  • People whose blood test results show that their bone marrow, liver, and kidneys are functioning within the levels required by the trial.
  • People who are not pregnant at the time of screening, and who agree to use effective contraception during the trial and for a defined period after their last dose (at least 30 days after the last avelumab dose and at least 6 months after the last M1774 dose); this applies to people who could become pregnant and have not had surgery to prevent pregnancy or reached menopause.
  • People who are able to understand and willing to sign a written consent form agreeing to take part.

Who may not be able to join:

  • People who have received chemotherapy, immunotherapy, another experimental treatment, or radiation therapy within the 4 weeks before starting the trial (or within 6 weeks for certain specific chemotherapy drugs).
  • People who still have side effects from previous cancer treatments that have not improved to a mild level (Grade 1 or lower), unless the trial doctors consider those effects stable and not a safety concern.
  • People who are currently taking part in another clinical trial involving an experimental treatment.
  • People who have cancer that has spread to the membranes surrounding the brain or spinal cord (a condition called meningeal carcinomatosis); people with treated and stable brain metastases who have been off corticosteroids for more than 14 days, or are on a stable or decreasing steroid dose, may be considered (confirm with trial site).
  • People who have had a severe allergic reaction (Grade 3 or higher) to avelumab, M1774, or similar antibody-based medicines, or who have a history of anaphylaxis or uncontrolled asthma.
  • People who have an active or uncontrolled infection, with some exceptions for people with well-controlled HIV, hepatitis B, or treated and cured hepatitis C (confirm with trial site).
  • People currently taking immune-suppressing medications within 7 days before joining, with some exceptions for low-dose or locally applied steroids (confirm with trial site).
  • People with an active autoimmune disease that may worsen when stimulated by immunotherapy; people with Type 1 diabetes, vitiligo, psoriasis, or thyroid conditions that do not require immune-suppressing treatment may still be considered.
  • People who have had an organ transplant or bone marrow transplant using donor cells.
  • People with serious bowel problems, such as a bowel blockage within the last 4 weeks, uncontrolled diarrhoea in the last 4 weeks, or a history of inflammatory bowel disease.
  • People with psychiatric or personal circumstances that the trial doctors believe would make participation unsafe or unsuitable, including active or recent (within the past year) thoughts of self-harm or suicide.
  • People with serious heart or blood vessel problems, including poorly controlled high blood pressure, significant heart failure, uncontrolled heart rhythm problems, unstable chest pain, a heart attack, a stroke, or a related procedure within the 180 days before starting treatment.
  • People with a known problem with alcohol or drug misuse.
  • People with a history of another cancer, unless they have been free of that cancer for at least 5 years, or the trial doctors consider the risk of it returning to be low; certain early-stage skin and cervical cancers diagnosed and treated within the past 5 years may still be eligible (confirm with trial site).
  • People with other serious ongoing medical conditions or abnormal lab results that, in the opinion of the trial doctors, would make participation unsafe.
  • People who have received a live vaccine within 4 weeks before starting treatment, or who plan to receive one during the trial; inactivated (non-live) vaccines are permitted.
  • People who are currently using herbal or natural remedy products, including St. John's Wort, ginkgo biloba, ginseng, and others listed by the trial.
  • People who are taking certain medications that strongly affect how the trial drugs are processed by the body (specific enzyme inhibitors or inducers, or proton pump inhibitors) within 7 days before starting treatment.
  • People who are pregnant or breastfeeding; breastfeeding would need to be stopped if a participant is treated, and should not resume for at least 1 month after the last treatment.
  • People whose heart electrical reading (QTc interval) is above a certain level on an ECG that does not improve after correcting any related issues.

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 28 July 2026
Phase 2: approximately ~30% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Principal Investigator: Panagiotis Konstantinopoulos, MD, PhD, Dana-Farber Cancer Institute

Phone: 617-632-5269

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Recruiting
Phase
Phase 2
Sponsor
Panagiotis Konstantinopoulos, MD, PhD
Registry
ClinicalTrials.gov
Start date
14 November 2024
Est. completion
31 August 2027

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Progression Free Survival at 6 months (PFS6); Objective Response Rate (ORR)

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov