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Scientists investigate why chemotherapy clouds thinking

NCT ID NCT03137095

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at why breast cancer patients often have trouble with memory, focus, and thinking after chemotherapy. Researchers will compare 150 women with breast cancer to healthy women of the same age using cognitive tests, blood samples, and optional brain MRIs. The goal is to understand how common these problems are and what biological changes might cause them.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could help explain why some breast cancer patients experience 'chemo brain' and point toward ways to prevent or manage it.
What could go wrong
This is an early observational study, not a treatment trial. It may not find clear causes or lead to immediate solutions.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2017

Expected to finish

Jul 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Female breast cancer patients with a diagnosis of invasive non-metastatic breast cancer (stage I -IIIC) and age-matched, health female participants

Ages

21 years and older

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria, Breast Cancer Patient Participants: * Females with a diagnosis of invasive non-metastatic breast cancer (stage I-IIIC) * Scheduled to begin a course of chemotherapy with Adriamycin and Cytoxan * Chemotherapy naïve * Able to speak and read English * 21 years or older * Give written informed consent Exclusion Criteria, Breast Cancer Patient Participants: * Must not be currently hospitalized or have been hospitalized within the last year for a psychiatric illness * Must not be diagnosed with a neurodegenerative disease (e.g., Alzheimer's disease, Parkinson's disease) * Must not have any Central Nervous System disease (e.g., movement disorder, multiple sclerosis) * Subjects could have had a TIA (transient ischemic attack) or stroke in the past if the TIA or stroke was greater than 1 year ago and the subject does not have any remaining symptoms * Must not be scheduled to receive concurrent radiation treatment while receiving chemotherapy. * Must not be colorblind Inclusion Criteria, Control Participants: * Must be female and within 5 years of the age of the subject receiving chemotherapy * Able to speak and read English * Give written informed consent * 21 years or older Exclusion Criteria, Control Participants: * Must not be currently hospitalized or have been hospitalized within the last year for a psychiatric illness * Must not be diagnosed with a neurodegenerative disease (e.g. Alzheimer's disease, Parkinson's disease) * Must not have Central Nervous System disease (e.g., movement disorder, multiple sclerosis) * Subjects could have had a TIA (transient ischemic attack) or stroke in the past if the TIA or stroke was greater than 1 year ago and the subject does not have any remaining symptoms * Must not have been diagnosed with cancer or previously have received chemotherapy * Must not be colorblind For optional sub-study: MR safety assessed via Rochester Center for Brain Imaging Magnetic Resonance (MR) Safety Screening Form to confirm eligibility to participate

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Rochester

    RECRUITING

    Rochester, New York, 14642, United States

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