Actively Recruiting
Safety and Efficacy of hCD1a-CAR T (OC-1) Therapy in Patients With Relapsed/Refractory T-cell Acute Lymphoblastic Leukemia/Lymphoma
Led by OneChain Immunotherapeutics · Updated on 2026-03-11
20
Participants Needed
2
Research Sites
N/A
Total Duration
On this page
Sponsors
O
OneChain Immunotherapeutics
Lead Sponsor
B
BioClever 2005 S.L.
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating the safety and efficacy of a new treatment called CD1a-CAR T therapy for patients with relapsed or refractory T-cell acute lymphoblastic leukemia or lymphoblastic T-cell lymphoma. This is a first-in-human, exploratory, open-label, single-arm, multicenter study focused on patients who have not responded well to standard treatments. The study is sponsored by OneChain Immunotherapeutics and is a Phase 1 trial aiming to understand how this therapy works and its safety profile. The treatment involves using a patient's own T-cells, which are collected from their blood, expanded, and genetically modified with a lentivirus to express a CD1a chimeric antigen receptor. These modified T-cells are then given back to the patient through intravenous infusion in escalating doses to find the safest and most effective dose. This dose-escalation approach helps researchers carefully monitor responses and side effects as the dose increases. Participants will be closely monitored for one year after receiving the infusion. Researchers will track adverse events, including severe immune reactions like cytokine release syndrome and neurotoxicity, as well as treatment-related deaths and specific side effects such as skin reactions. They will also assess how well the immune system remains balanced, measure remission rates, disease progression, survival, and the persistence of the infused cells. The study involves detailed follow-up visits and evaluations to gather this information over the year following treatment.
CONDITIONS
Brief Title
Safety and Efficacy of OC-1 Therapy in Patients With R/R T-ALL/LL
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Children aged 2 years or older, including adults, male and female
- Patients with CD1a antigen blast expression of 20% or more confirmed by flow cytometry or histology
- Relapsed or refractory CD1a-positive T-ALL/LL defined by failure to achieve remission after chemotherapy, relapse after frontline therapy or stem cell transplant, or primary refractoriness
- Patients without reproductive capacity or willing to use highly effective contraception during the study
You will not qualify if you...
- Uncontrolled organ dysfunction including cardiac (LVEF <45%), lung, liver, kidney, or CNS problems
- Stem cell transplant within less than 3 months or ongoing immunosuppressive treatment for graft versus host disease
- Uncontrolled epilepsy or severe CNS disease
- Active infections not controlled by treatment, including bacterial, fungal, or viral
- Known HIV, active hepatitis B or C infections
- Pregnant or breastfeeding women
- Severe illness or medical conditions preventing protocol management
- Serious autoimmune or immunodeficiency diseases
- Participation in another experimental drug trial within 6 weeks before infusion
- Other uncontrolled cancers
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - Up to 1 year with focus on the first 28 days after infusion
Participants receive an infusion of CD1a-CAR T cells to treat relapsed or refractory T-cell acute lymphoblastic leukemia or lymphoma.
1 infusion visit followed by frequent monitoring visits especially during the first 28 days
Trial Site Locations
Total: 2 locations
1
Hospital Clínic
Barcelona, Spain
Actively Recruiting
2
Hospital Sant Joan de Déu
Barcelona, Spain
Actively Recruiting
Research Team
W
Wilmar Castillo
L
Laura Astier
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
1
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