A Long-Term Follow-Up Basket Study for Participants Treated With SynKIR Chimeric Antigen Receptor (CAR) T Cell Product

February 6, 2026 updated by: Verismo Therapeutics
The primary purpose of this study is to monitor potential long-term risks associated with the administration of SynKIR CAR T cell products.

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

This is a study for the Long Term Follow Up for all participants treated with Verismo Therapeutics' SynKIR CAR T cell products in accordance with regulatory guidance. The primary objective of this study is to monitor the long-term safety of SynKIR CAR T cell products.

No investigational product will be administered in this LTFU study. Eligible participants must have received at least 1 infusion of a SynKIR CAR T cell product under a Verismo Therapeutics parent protocol. Participants will be invited to enroll into this LTFU study after either early discontinuation from or completion of the parent protocol.

In accordance with regulatory guidelines, this study will follow participants for a period of 15 years following infusion of Verismo Therapeutics' SynKIR CAR T cell product, to monitor for delayed adverse events (AEs), detection of replication competent lentivirus (RCL), and to assess long-term efficacy and persistence of gene-modified T cells.

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.
60

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

  • United States
    • Colorado
      • Denver, Colorado, United States, 80218
        • Colorado Blood Cancer Institute, part of Sarah Cannon Research Institute
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Winship Cancer Institute of Emory University
    • Kansas
      • Westwood, Kansas, United States, 66205
        • University of Kansas Cancer Center
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • University of Pennsylvania Abramson Cancer Center
    • Texas
      • Houston, Texas, United States, 77030
        • MD Anderson Cancer Center
    • Wisconsin
      • Madison, Wisconsin, United States, 53792
        • University of Wisconsin Carbone Cancer Center

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

Eligible participants must have received at least 1 infusion of a SynKIR CAR T cell product in a Verismo Therapeutics parent protocol.

Description

Inclusion Criteria:

Participants are eligible to be included in the study only if all of the following criteria apply:

  1. All adult participants who have received any amount of SynKIR CAR T cell product in a study sponsored by Verismo Therapeutics.
  2. Participant is willing and able to comply with the study requirements.

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.
SynKIR-110
Participants who previously received SynKIR-110 in an interventional trial
Drug: SynKIR-110
Autologous T cells Transduced with Mesothelin KIR-CAR
SynKIR-310
Participants who previously received SynKIR-310 in an interventional trial
Drug: SynKIR-310
Autologous T Cells transduced with CD19 KIR-CAR

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
To monitor the long-term safety of participants that have been infused with a SynKIR CAR T cell product
Time Frame: Up to 15 years from SynKIR CAR T cell product administration
Frequency and severity of delayed AEs considered related to SynKIR CAR T cell product
Up to 15 years from SynKIR CAR T cell product administration
To monitor the long-term safety of participants that have been infused with a SynKIR CAR cell product
Time Frame: Up to 15 years from SynKIR CAR T cell product administration
Presence of RCL VSV-G DNA
Up to 15 years from SynKIR CAR T cell product administration

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
To assess the long-term clinical efficacy of SynKIR CAR T cell product
Time Frame: Up to 15 years from SynKIR CAR T cell product administration
Overall survival
Up to 15 years from SynKIR CAR T cell product administration
To assess the long-term clinical efficacy of SynKIR CAR T cell product
Time Frame: Up to 15 years from SynKIR CAR T cell product administration
Progression-free survival
Up to 15 years from SynKIR CAR T cell product administration
To assess the persistence of SynKIR-modified T cells
Time Frame: Up to 15 years from SynKIR CAR T cell product administration
Presence of a SynKIR CAR DNA sequence
Up to 15 years from SynKIR CAR T cell product administration

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.
Verismo Therapeutics

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.
January 27, 2025

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.
February 1, 2042

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.
February 1, 2042

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).
November 18, 2024

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.
November 20, 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.
November 22, 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.
February 10, 2026

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.
February 6, 2026

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.
January 1, 2026

More Information

Terms related to this study

Keywords

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.
  • LTFU 101-00

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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