Descartes-08 for Children, Adolescents, and Young Adults With Autoimmune Disorders

Purpose

Safety, tolerability and efficacy of Descarte-08 in children, adolescents and young adults with childhood-onset systemic lupus erythematosus, ANCA-associated vasculitis, juvenile myasthenia gravis, and juvenile dermatomyositis

Conditions

  • Childhood-onset Systemic Lupus Erythematous
  • ANCA-Associated Vasculitis (AAV)
  • Juvenile Myasthenia Gravis
  • Juvenile Dermatomyositis

Eligibility

Eligible Ages
Over 12 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • At least age 12 - definitive diagnosis of childhood-onset systemic lupus erythematous, juvenile Myasthenie gravis, juvenile dermatomyositis and AAV - Signs and symptoms of moderate disease - History of systemic treatment - Parent/Guardian/Patient must be able to give written informed consent

Exclusion Criteria

  • 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; - Abnormal PT/INR or PTT increased > 1.5-fold or patient is on anticoagulation therapy (except in cases of elevated PTT with documented lupus anticoagulant; or in patients who have been on stable doses of anticoagulation therapy for more than 6 months of VTE diagnosis; or in patients on stable doses of anticoagulation therapy for at least 8 weeks of atrial fibrillation diagnosis; these conditions will not be exclusionary unless, in the investigator's opinion, they make participation in the study unsafe); - ANC < 1000 cells/microliter ; - Hemoglobin < 8.0 g/dL ; - Platelets < 50,000/mm3 (NOTE: platelet transfusions are permissible); - ALT and/or AST with GGT ≥ 3× upper limit of normal - Creatine Clearance less than 30mL/min /1.73 m2; - History of primary immunodeficiency, organ, or allogeneic bone marrow transplant; - Patients must be seronegative for hepatitis B surface antigen; - Patients must be seronegative for hepatitis C antibody. If hepatitis C antibody test is positive, then patients must be tested for the presence of viremia by RT-PCR and must be HCV RNA negative; - History of positive HIV or positive HIV at screening; - Active tuberculosis or positive QuantiFERON test at screening; - Any other laboratory abnormality that, in the opinion of the investigator, may jeopardize the subject's ability to participate in the study; 23. Any active significant cardiac or pulmonary disease not related to the primary indication as determined by principal investigator and medical monitor Note: Patients with asthma and COPD controlled with inhaled medications are allowed; 24. Any arterial or venous thromboembolic events in the past 3 months; 25. History of malignancy that required treatment in the past 3 years except for successfully-treated squamous cell and/or basal cell carcinoma of the skin and/or breast or colon cancer that is surgically removed and did not require adjuvant chemotherapy or radiotherapy; 26. Treatment with any investigational agent within 4 weeks of screening or 5 half-lives of the investigational drug (whichever is longer); 27. Receipt of a live vaccination within 4 weeks prior to baseline (Day 1) or intent to receive live vaccination during the study (Note: mRNA-based vaccines such as those against SARS-CoV-2 are not considered live; likewise, the Janssen Covid-19 vaccine is not live); 28. History of significant recurrent infections or any active infection that may interfere with the patient's participation in the opinion of the investigator; 29. Any known psychiatric illness that may interfere with the patient's participation in the study in the opinion of the investigator.

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Sequential Assignment
Intervention Model Description
Part 1: establish Maximum tolerated dose Part 2: MTD to be given once weekly for 6 weeks
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Part 1: Decartes-08 to establish Maximum tolerated dose
Intra-patient dose escalation arm with three dose levels over the course of six infusions of cell product.
  • Drug: Descartes-08
    In part 1, three different doses will be administered to 3 participants with either disease indication to establish maximum tolerated dose In part 2, the MTD established in Part-1 will be administered as six once-weekly infusions to up to 10 participants per each of four baskets (cSLE, AAV, JDM and JMG) in an outpatient setting.
Experimental
Part 2: Decartes-08 infusions once weekly for 6 weeks
Descartes-08 infusions at the maximum tolerated dose level from Part 1.
  • Drug: Descartes-08
    In part 1, three different doses will be administered to 3 participants with either disease indication to establish maximum tolerated dose In part 2, the MTD established in Part-1 will be administered as six once-weekly infusions to up to 10 participants per each of four baskets (cSLE, AAV, JDM and JMG) in an outpatient setting.

Recruiting Locations

Children's National and nearby locations

H01- Children's National Hospital
Washington D.C., District of Columbia 20010
Contact:
Emily Miller
202-476-4130
ejmiller@childrensnational.org

More Details

NCT ID
NCT07089121
Status
Recruiting
Sponsor
Cartesian Therapeutics

Study Contact

Cartesian Clinical Trials
617-231-8102
trials@cartesiantx.com