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Experimental CAR t therapy targets tough myeloma cases

NCT ID NCT06304636

Disease control Sponsor: Cartesian Therapeutics 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 early study tested a new treatment called Descartes-15 for people with multiple myeloma that came back or didn't respond to standard therapies. Descartes-15 uses a patient's own immune cells, engineered to recognize and attack myeloma cells. The trial was very small (4 participants) and was terminated early, so we have limited information on how well it works.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Descartes-15 (RNA-engineered CAR T-cells targeting BCMA)
What this could lead to
If successful, this could point toward a new treatment option for patients with multiple myeloma who have run out of standard therapies.
What could go wrong
This is a very early, small Phase 1 trial (only 4 participants) that was terminated, so results are limited. The therapy may not work or could cause serious side effects.

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

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

4 people

The number who actually took part.

Started

Jun 2024

Finished

Nov 2025

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 * Patients must be 18 years of age or older at the time of enrollment. * Patients must be diagnosed with active and measurable relapsed/refractory multiple myeloma. * Patients must have failed at least 3 prior lines of therapy which must have included an immunomodulatory drug, a proteasome inhibitor, and an anti-CD38 drug or biologic. Failure of treatment and measurable myeloma disease are defined as per 2016 IMWG criteria. * Patients must have clinical performance status of ECOG 0-2. * Patients must have adequate vital organ function as defined by: * Hemoglobin ≥8 g/dL * Absolute neutrophil count \> 1000/ mm3 * Platelets \> 50,000/mm3 * ALT/AST levels lower than 3-fold of normal * Creatinine clearance ≥45 mL/min/1.73 m2 * Normal cardiac and pulmonary function * No thromboembolic events in the past 3 months * No heparin allergy or active infection Exclusion Criteria * Patients who have any active and uncontrolled infection. * Ongoing treatment with chronic immunosuppressants (e.g., cyclosporine or systemic steroids above 40 mg/day prednisone equivalent). * Patients who have active central nervous system disease.

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Conditions

The condition(s) this trial relates to.

plasma cell myeloma plasma cell neoplasm Recurrence refractory plasma cell neoplasm

As listed by the trial registrant

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

Refractory multiple myeloma Relapsed multiple myeloma

Contacts and locations

Locations

  • Center for Cancer and Blood Disorders (AON)

    Bethesda, Maryland, 20817, United States

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