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Immune cell therapy takes on rare blistering skin disease

NCT ID NCT04422912

Disease control Sponsor: Cabaletta Bio Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study tests two types of engineered immune cells (CAR T cells) in 40 adults with active pemphigus vulgaris, a painful blistering skin condition. The cells are designed to target and reduce the faulty immune cells that attack the skin. The main goal is to check safety and find the right dose, with the hope of controlling the disease long-term.

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

Phase 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 40 people

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

Started

Sep 2020

Expected to finish

Jan 2029

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

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 for DSG3-CAART: Closed to enrollment * Confirmed diagnosis of mPV by prior or screening biopsy and prior positive anti- DSG3 antibody ELISA * mPV inadequately managed by at least one standard immunosuppressive therapies * Active mPV at screening * Anti-DSG3 antibody ELISA positive at screening Inclusion Criteria for CABA-201 sub-study: Open to enrollment * Age ≥18 * Confirmed diagnosis of PV by prior or screening biopsy and prior positive DSG3 ELISA, IIF, and/or DIF * PV inadequately managed by at least one standard immunosuppressive therapy * Active PV at screening * DSG3 ELISA positive at screening Exclusion Criteria: * Active cutaneous lesions associated with PV that indicates mucocutaneous rather than mucosal-dominant disease * Rituximab in last 12 months unless PV symptoms have recently worsened or anti-DSG3 antibody titers have recently increased * Prednisone \> 0.25mg/kg/day * Other autoimmune disorder requiring immunosuppressive therapies * Investigational treatment in last 3 months Exclusion Criteria for CABA-201 sub-study * Have paraneoplastic pemphigus or active malignancy (not including non-melanoma skin cancer) or malignancy diagnosed within the previous 5 years * Have received rituximab or other anti-CD20 or anti-CD19 therapies in last 12 months unless anti-DSG3 antibody titers have recently increased or PV symptoms have recently worsened * Prednisone \> 0.25mg/kg/day * Other autoimmune disorder requiring immunosuppressive therapies * Treatment with any investigational agent within 4 weeks or 5 half-lives, whichever is longer.

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Conditions

The condition(s) this trial relates to.

autoimmune disease immune system disorder pemphigus pemphigus vulgaris vesiculobullous skin disease

As listed by the trial registrant

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

Pemphigus vulgaris

How to take part

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

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    10 sites. The list below names each one and where it is.

  3. 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 ↗

  4. 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

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Brigham and Women's Hospital

    RECRUITING

    Boston, Massachusetts, 02115, United States

  • Columbia University

    RECRUITING

    New York, New York, 10032, United States

  • MD Anderson Texas Medical Center

    RECRUITING

    Houston, Texas, 77030, United States

  • Mount Sinai - Icahn School of Medicine

    WITHDRAWN

    New York, New York, 10029, United States

  • Northwestern University

    RECRUITING

    Chicago, Illinois, 60611, United States

  • Stanford University, Dept. of Dermatology

    RECRUITING

    Redwood City, California, 94063, United States

  • UC Davis, Dept. of Dermatology

    RECRUITING

    Sacramento, California, 95816, United States

  • UT Southwestern Medical Center, Dept. of Dermatology

    RECRUITING

    Dallas, Texas, 75235, United States

  • University of Iowa

    RECRUITING

    Iowa City, Iowa, 52242, United States

  • University of North Carolina, Department of Dermatology

    WITHDRAWN

    Chapel Hill, North Carolina, 27516, United States

  • University of Pennsylvania

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • University of Washington

    COMPLETED

    Seattle, Washington, 98109, United States

  • Yale University

    RECRUITING

    New Haven, Connecticut, 06520, United States

More trials for these conditions

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