Clinical trial Recruiting at 1 site Observational Ages 35 to 65 Women only

Investigating brain health in breast cancer survivors undergoing hormone therapy

Official title: Brain Health in Breast Cancer Survivors: Interaction of Menopause and Endocrine Therapy

Run by Jonsson Comprehensive Cancer Center · NCT04297020 · Data updated 2026-11-12

This study is trying to see how hormone therapy affects brain function in breast cancer survivors, especially looking at how menopause plays a role.

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Quick facts

Study typeObservational
Ages35 Years to 65 Years
SexWomen only
Enrollment120 (estimated)
SponsorJonsson Comprehensive Cancer Center
Academic / other
Drugs / interventionschemotherapy
Locations1 site (Los Angeles, California)
StatusRecruiting
StartedMarch 11, 2020
Main results expectedMarch 15, 2027
Study endsMarch 15, 2028
Registry record updatedJuly 7, 2026
Trial IDNCT04297020 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include women aged 35-65 who are fluent in English and have adequate vision and hearing to complete testing.

Probably not a fit

Patients with a history of major neurocognitive disorders, major neurological conditions, or prior cancer treatments 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 observational study aims to explore the effects of endocrine therapy on cognitive function in breast cancer survivors, particularly focusing on the role of menopausal status. By employing a cross-sectional, 2x2 factorial design, the study will compare brain activity between survivors on endocrine therapy and healthy controls using advanced fMRI techniques during a working memory task. The research seeks to address inconsistencies in previous studies by considering menopausal status and utilizing sensitive cognitive measures. The findings could provide insights into how hormone therapy impacts brain health in this population.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of cognitive health in breast cancer survivors undergoing hormone therapy.

How similar studies have gone: While some studies have explored cognitive effects of hormone therapy, this approach using sensitive fMRI measures in the context of menopausal status is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 35-65
* Fluent in English
* Adequate vision/hearing to complete testing

Exclusion Criteria:

* History of major or mild neurocognitive disorder or dementia
* Diagnosis of major neurological condition (e.g., epilepsy, Parkinson's Disease, stroke)
* Diagnosis of a major psychiatric disorder (e.g., bipolar disorder, schizophrenia)
* Untreated/unstable unipolar depression or anxiety
* Prior history of cancer or chemotherapy (for controls, any history)
* History of a learning disorder
* History of head injury with loss of consciousness \>20 minutes
* History of salpingo-oophorectomy or hysterectomy
* A cardiac pacemaker
* Implanted electronic device
* Claustrophobia
* Currently pregnant
* Orbital metal implant or other metallic foreign bodies

Additional exclusion criteria for controls: current use of a contraceptive agent that interferes with endogenous hormonal fluctuation (e.g., oral contraceptive pill) or precludes determination of menstrual pattern (e.g., hormonally secreting intrauterine device), or current treatment with systemic estrogen replacement therapy.

Where it's running

  • University of California at Los Angeles
    Los Angeles, California, United States
    Recruiting

Study contacts

  • Principal investigator: Kathleen Van Dyk, PhD — University of California at Los Angeles
  • Study coordinator: Kathleen Van Dyk, PhD
  • Email: KVanDyk@mednet.ucla.edu
  • Phone: 310 825-2719

Similar studies

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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.