A Long-term Follow-up Study of Subjects Who Received CRISPR CAR T Cellular Therapies

August 11, 2025 updated by: CRISPR Therapeutics AG

A Long-term Follow-up Study of Subjects With Malignancies Treated With CRISPR CAR T Cellular Therapies

This study will evaluate the long-term safety and efficacy of CRISPR CAR T cellular therapies

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Enrolling by invitation

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

All subjects with hematological and solid malignancies who are enrolled in a parent study and were exposed to allogeneic CRISPR CAR T cellular therapy will be asked to participate in this long-term follow-up (LTFU) study. Subjects who have completed the parent study for the protocol-defined duration, or who have discontinued the parent study early, or who are in secondary follow-up (follow up of subjects with progressive disease or who receive a subsequent line of anticancer therapy) in the parent study may enroll in this LTFU study. This will allow for collection of long-term efficacy data (as applicable) and safety data up to 15 years post-treatment with CRISPR CAR T cellular therapies.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
70

Contacts and Locations

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

Study Locations

  • Australia
      • Nedlands, Australia, 6009
        • Sir Charles Gairdner
    • New South Wales
      • Camperdown, New South Wales, Australia, 2050
        • Royal Prince Alfred Hospital
    • Victoria
      • Melbourne, Victoria, Australia, 3000
        • Peter MacCallum Cancer Center
  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2M9
        • Princess Margaret
  • Germany
      • Hamburg, Germany, D-20246
        • University Hospital Hamburg-Eppendorf
  • United States
    • California
      • Duarte, California, United States, 91010
        • City of Hope
      • Los Angeles, California, United States, 90048
        • Cedars Sinai
      • Stanford, California, United States, 94305
        • Stanford
    • Connecticut
      • New Haven, Connecticut, United States, 06510
        • Yale New Haven Hospital
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • EMORY
    • Illinois
      • Chicago, Illinois, United States, 60637
        • University of Chicago
    • Kansas
      • Westwood, Kansas, United States, 66205
        • University of Kansas
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • University of Minnesota
    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Washington University Saint Louis
    • New York
      • Bronx, New York, United States, 10467
        • Montefiore Medical Center
      • New York City, New York, United States, 10065
        • MSKCC
    • Oregon
      • Portland, Oregon, United States, 97239
        • Oregon Health and Science University
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • University of Pennsylvania
    • Texas
      • Dallas, Texas, United States, 75390
        • Ut Southwestern
      • Houston, Texas, United States, 77030
        • MD Anderson Cancer Center
      • San Antonio, Texas, United States, 78229
        • Methodist Hospital-Sarah Cannon
    • Utah
      • Salt Lake City, Utah, United States, 84112
        • University of Utah-Huntsman Cancer Institute

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

All subjects with hematological and solid malignancies who are enrolled in a parent study and were exposed to allogeneic CRISPR CAR T cellular therapy will be asked to participate in this long-term follow-up (LTFU) study. Subjects who have completed the parent study for the protocol-defined duration, or who have discontinued the parent study early, or who are in secondary follow-up (follow up of subjects with progressive disease or who receive a subsequent line of anticancer therapy) in the parent study may enroll in this LTFU study. This will allow for collection of long-term efficacy data (as applicable) and safety data up to 15 years post-treatment with CRISPR CAR T cellular therapies.

Description

Inclusion Criteria:

  • Able to understand and comply with protocol-required study procedures and voluntarily sign and date a written informed consent document.
  • Must have received CRISPR CAR T cellular therapy.

Exclusion Criteria:

  • There are no specific exclusion criteria.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Non Interventional
All subjects with hematological and solid malignancies who are enrolled in a parent study and were exposed to allogeneic CRISPR CAR T cellular therapy will be asked to participate in this long-term follow-up (LTFU) study.
Other: Non Interventional
Safety and Efficacy Assessment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The incidence of adverse events, serious adverse events and adverse events of special interest related to CRISPR CAR T cellular therapy treatment.
Time Frame: 15 years
The number and percentage of subjects with CRISPR CAR T cellular therapy related SAEs and AESIs will be summarized.
15 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The overall survival and duration of remission/response following CRISPR CAR T cellular therapy treatment
Time Frame: 15 years
Overall survival will be calculated as the time between the initial dose of CRISPR CAR T cellular therapy in the parent study and death due to any cause. Duration of remission/response will be calculated as the time between the first objective response to first disease progression or death due to any cause.
15 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
CRISPR Therapeutics AG

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 22, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2038

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2038

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 12, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 5, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 17, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 14, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 11, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CRSP-ONC-LTF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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