A Pilot Study for Pupillary Assessment to Predict CAR-T Related Neurotoxicity

April 13, 2026 updated by: M.D. Anderson Cancer Center
To learn about the relationship between changes in pupil size and reactivity and the start of neurological side effects in patients after receiving CAR-T cell therapy.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Primary Objective:

To assess the association between the status of NPi drop from baseline (prior to CAR T-cell infusion) to the lowest NPi post Axi-cel (CD19 CAR-T cell) infusion and the status of immune effector cell-associated neurotoxicity onset within 10 days post CD19 CAR-T cell infusion.

Secondary Objective:

To evaluate the largest absolute difference in NPi between two eyes (∆ NPi) and assess its association with severity of clinical symptoms as measured by Immune Effector Cell Encephalopathy (ICE) and or radiographic / EEG findings

Exploratory Objective:

To assess the feasibility and safety of a pupillometer use in patient treated with Axi-cel therapy.

Study Type

Observational

Enrollment (Estimated)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

MD Anderson Cancer Center

Description

Inclusion Criteria:

To be considered eligible for study participation, patient will satisfy all relevant inclusion criteria and none of the exclusion criteria.

Inclusion Criteria:

  1. Ages Eligible for Study: 18 Years and above (Adult, Older Adult)
  2. Sexes Eligible for Study: All
  3. Patient with histologically proven DLBCL, PMBCL or tFL, or follicular Lymphoma receiving axi-cel CAR-T cell therapy in the inpatient setting at MD Anderson Cancer Center
  4. Ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

  1. Patients who have already been administered CAR-T cell therapy.
  2. The patient who is unwilling or unable to comply with the requirements of the study including being able to be assessed with pupillometer
  3. Patient has a condition which places him at an unacceptable risk as determined by the investigator

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Incidence of Adverse Events, Graded According to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version (v) 5.0
Time Frame: Through study completion; an average of 1 year.
Through study completion; an average of 1 year.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

M.D. Anderson Cancer Center

Investigators

  • Principal Investigator: Ranjit Nair, MD, M.D. Anderson Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 8, 2024

Primary Completion (Estimated)

April 1, 2027

Study Completion (Estimated)

April 1, 2027

Study Registration Dates

First Submitted

November 16, 2023

First Submitted That Met QC Criteria

November 16, 2023

First Posted (Actual)

November 22, 2023

Study Record Updates

Last Update Posted (Actual)

April 16, 2026

Last Update Submitted That Met QC Criteria

April 13, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2023-0176
  • NCI-2023-09804 (Other Identifier: NCI-CTRP Clinical Trials Registry)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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