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Gene test may cut chemo side effects

NCT ID NCT04541381

Knowledge-focused Sponsor: University of Chicago Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether giving doctors a patient's genetic information can help them personalize chemotherapy doses and reduce serious side effects. About 860 adults with certain cancers (like breast, stomach, or head and neck) will be randomly assigned to have their doctors receive genetic test results or not. The goal is to see if this approach leads to fewer severe toxicities and better dose management.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 860 people

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

Started

Feb 2022

Expected to finish

Mar 2028

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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 Adult patients receiving oncology care at The University of Chicago Medical Center, and for whom treatment with a fluoropyrimidine and/or irinotecan is planned are eligible. Individuals of all genders, races and ethnic groups are eligible for this trial. There is no bias towards race, sex, or gender in the clinical trial outlined. Exclusion Criteria 1. Subjects who have previously been exposed to the planned chemotherapy agent at any time (fluoropyrimidine and/or irinotecan). 2. Subjects enrolled in an investigational trial which would preclude dose modifications of fluoropyrimidine and/or irinotecan chemotherapies. 3. Subjects who have undergone, or are being actively considered for, bone marrow, liver or kidney transplantation. 4. Subjects with a history of or active blood cancer (e.g., leukemia). 5. Chronic kidney disease, as defined by glomerular filtration rate (GFR) \< 30/mL/min/1.73m2, due to the risk of decreased drug excretion. 6. Liver dysfunction, as defined by the following laboratory values, due to the risk of decreased drug metabolism: Total bilirubin more than 1.5 mg/dL, aspartate Aminotransferase (AST) and alanine transaminase (ALT) more than 2.5 X upper limit of normal\*. (\*AST and ALT more than 5 X upper limit of normal if hepatic metastases are present). 7. Subjects who have previously or are currently enrolled in another institutional pharmacogenomic genotyping study, or are known to have previously undergone pharmacogenomic genotyping for the gene(s) of interest via another commercial or other means. 8. Inability to understand and give informed consent to participate.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm digestive system cancer digestive system neoplasm dihydropyrimidine dehydrogenase deficiency head and neck cancer Head and Neck Neoplasms

As listed by the trial registrant

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

Breast cancer Dihydropyrimidine dehydrogenase deficiency Gastrointestinal cancer Head and neck cancer UGT1A1 gene mutation

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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 Chicago Medical Center

    Chicago, Illinois, 60637, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.