Descartes-08 for Patients With Systemic Lupus Erythematosus (SLE-001)

March 23, 2026 updated by: Cartesian Therapeutics
This is a Phase II study to evaluate the safety, tolerability and manufacturing feasibility of Descartes-08 CAR T-cells in patients with Systematic Lupus erythematosus (SLE).

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

6

Phase

  • Phase 2

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
    • California
      • Oceanside, California, United States, 92056
        • Profound Research LLC

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

Description

Inclusion Criteria:

  • Patient must be at least 18 years of age.
  • Patient must have systemic lupus erythematosus (SLE) at the time of screening.
  • Active symptoms despite recent or ongoing immunosuppressive therapy with glucocorticoids and at least 2 other immunosuppressive medications being tried for at least 12 weeks within 24 months of screening.
  • At least one of: anti-dsDNA, anti-histone, anti-chromatin, and/or anti-Sm antibodies detectable at screening as assessed by a CLIA-certified laboratory.

Exclusion Criteria:

  • Active severe lupus nephritis, active severe CNS lupus, and/or neurological symptoms of SLE including headache, seizure, psychosis, and organic brain syndrome (a patient with an incidental headache, deemed unrelated to SLE, may re-screen by telephone upon resolution of the headache);
  • Major chronic illness that is not well managed at the time of study entry and in the opinion of the investigator may increase the risk to the patient.
  • Patient is pregnant or lactating.

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

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Descartes-08

Drug: Descartes-08

Autologous T-cells expressing a chimeric antigen receptor directed to BCMA
Drug: Descartes-08
Autologous T-cells expressing a chimeric antigen receptor directed to BCMA

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assess safety and tolerability of Descartes-08 in patients with systemic lupus erythematosus (SLE)
Time Frame: Day -59 to Day 50
Results will be descriptive. Safety and tolerability endpoints will include descriptive statistics of AEs and SAEs. Patients must be followed until all AEs have resolved to Grade 2 or less except for lymphopenia and alopecia.
Day -59 to Day 50

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Quantify the clinical activity of Descartes-08 in patients with SLE using Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K)
Time Frame: Day -59 to Month 12
Assessment of Systemic Lupus Erythematosus Disease Activity Index 2000 from baseline administration at various timepoints up to month 12 follow up visit. A total score can fall between 0 and 105, with a higher score representing a more significant degree of disease activity.
Day -59 to Month 12
Assess the clinical activity of Descartes-08 in patients with SLE using Systemic Lupus Erythematosus Responder Index (SRI)
Time Frame: Day -59 to Month 12
Assessment of whether participants meet the Systemic Lupus Erythematosus Responder Index (SRI) criteria (Yes/No) at various timepoints up to month 12 follow up visit.
Day -59 to Month 12
Assess the clinical activity of Descartes-08 in patients with SLE using British Isles Lupus Assessment Group (BILAG)-based Composite Lupus Assessment (BICLA)
Time Frame: Day -59 to Month 12
Assessment of whether participants meet the British Isles Lupus Assessment Group (BILAG)-based Composite Lupus Assessment (BICLA) criteria (Yes/No) at various timepoints up to month 12 follow up visit.
Day -59 to Month 12
Quantify the clinical activity of Descartes-08 in patients with SLE using Physician Global Assessment (PGA)
Time Frame: Day -59 to Month 12
Assessment of Physician Global Assessment (PGA) from baseline administration at various timepoints up to month 12 follow up visit. A total score can fall between 0.0 and 3.0, with a higher score representing a more significant degree of disease activity.
Day -59 to Month 12

Collaborators and Investigators

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

Sponsor

Cartesian 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)

February 12, 2024

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2027

Study Registration Dates

First Submitted

September 8, 2023

First Submitted That Met QC Criteria

September 8, 2023

First Posted (Actual)

September 14, 2023

Study Record Updates

Last Update Posted (Actual)

March 27, 2026

Last Update Submitted That Met QC Criteria

March 23, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DC08-SLE-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

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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