Phase 1 Breast Cancer Trial, Recruiting NCT06691035 Sponsor: H. Lee Moffitt Cancer Center and Research Institute Condition: Breast Cancer
Back to Breast Cancer

Phase 1 Breast Cancer Trial, Recruiting

NCT06691035
Recruiting Phase 1

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:

  • You have been diagnosed with breast cancer that is hormone receptor-positive and HER2-negative (confirmed by a tissue or fluid sample), and the cancer has spread to other parts of the body.
  • Your cancer has a specific gene change called an ESR1 mutation, found through a tumor or blood test.
  • You have already received at least one hormone therapy treatment and a CDK 4/6 inhibitor drug for your metastatic (spread) cancer.
  • Your cancer can be seen and measured (or at least detected) on a scan.
  • You are able to carry out basic daily activities with little to no limitation (your doctor can confirm this using a standard performance scale).
  • You are 18 years of age or older.
  • You are able to read and speak English or Spanish.
  • Your blood test results show that your bone marrow, liver, and kidneys are functioning well enough (your doctor will check specific lab values).
  • If you could become pregnant, you have had a negative pregnancy test before joining the trial.
  • If you are sexually active with a male partner and could become pregnant, you agree to use effective birth control during the study.
  • You are willing and able to follow all study requirements for the full duration of the trial.
  • You are willing to sign a consent form (or have a legal representative sign on your behalf).
  • You have brain metastases (cancer that has spread to the brain) that have already been treated and are stable, with no signs of growth in the 2 months before joining the trial.
  • People of all racial and ethnic backgrounds who meet the criteria are welcome to apply.

Who may not be able to join:

  • You are currently pregnant or breastfeeding.
  • You have previously been treated with a drug called Elacestrant.
  • You have had a serious allergic reaction to any of the drugs used in this study.
  • You have brain or spinal fluid metastases that are new, active, or getting worse.
  • You have taken another experimental (investigational) treatment within the last 21 days.
  • You have received certain cancer treatments within the last 14 days, including chemotherapy, hormone therapies (such as tamoxifen, aromatase inhibitors, or fulvestrant), or targeted therapies (such as CDK 4/6 inhibitors or similar drugs).
  • You have been diagnosed with or treated for another cancer (other than certain skin cancers or fully removed non-invasive cancers) within the past 2 years, or still have signs of another cancer.
  • You have serious uncontrolled health conditions, such as an active infection, severe heart problems, or mental health or personal circumstances that would make it hard to follow the study plan.
  • Your cancer has spread severely to internal organs in a way that could cause life-threatening complications very soon (for example, large uncontrolled fluid build-up or cancer in the lung's lymph vessels).
  • You have a known history of HIV or AIDS.
  • You have an active infection including tuberculosis, active hepatitis B, or active hepatitis C (confirm with trial site for specific details about past infections).
  • You have taken immune-suppressing medications within the last 14 days (with some exceptions, such as low-dose steroids or allergy pre-medications — confirm with trial site).
  • You are unable or unwilling to follow the study's requirements.

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 22 July 2026
Phase 1: approximately ~10% 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: Aixa Soyano Muller, MD, Moffitt Cancer Center

Phone: 813-745-0824

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 1
Registry
ClinicalTrials.gov
Start date
4 November 2024
Est. completion
1 November 2026

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Rate of Successful Completion; Occurrence Rate; Occurrence of Treatment Related Adverse Events

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: 22 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