Skip to content

A First-in-human Study to Assess OT-C001 (Amplified/Activated Allogenic Natural Killer Cells) in Patients With Relapsed/Refractory Diffuse Large B Cell Lymphoma

A First-in-human, Open-label, Clinical Study to Assess the Safety, Tolerability, and Activity of OT-C001 (Amplified/Activated Allogenic Natural Killer Cells) in Patients With Relapsed/Refractory Diffuse Large B Cell Lymphoma

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07044050
Enrollment
10
Registered
2025-06-29
Start date
2025-06-10
Completion date
2026-12-31
Last updated
2025-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diffuse Large B-cell Lymphoma With no Other Specification

Brief summary

The goal of this clinical trial is to learn the safety of OT-C001 and decide a good dose in treating relapsed or refractory diffuse large B-cell lymphoma patients. It will also learn about the preliminary activity of OT-C001. Participants will: Receive a short course of chemotherapy before OT-C001 treatment. During the study treatment, participants will recieve weekly dose of OT-C001 for 3 or 6 weeks. During the study period, participants will also receive another two drugs, rituximab and IL-2, to support OT-C001 treatment. Participants need to visit the clinic or may be hospitalized according to the study plan.

Interventions

BIOLOGICALallogenic natural killer cells

OT-C001 will be administered by IV infusion weekly for at least 3 doses.

Sponsors

Emercell SAS
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* ≥18 years of age * histologically confirmed diagnosis of R/R DLBCL-NOS without further standard treatment options including those relapsing after or ineligible for CAR T-cell therapy * with evaluable disease * with adequate biological parameters at baseline * ECOG performance status ≤1 * life expectancy \>3 months as assessed by the investigator

Exclusion criteria

* Receive concomitantly any antitumor-directed drug therapy * Any vaccination with live virus vaccines before or during treatment * With severe atopic predisposition who need a treatment with monoclonal antibodies, allergen immunotherapy, or long-term systemic corticosteroids * Major surgery within 3 weeks * With rapidly progressing disease that includes massive uncontrolled pleural, pericardial, or peritoneal effusions, pulmonary lymphangitis, and over 50% liver involvement * Ongoing immune-related tocivities or adverse events grade \>1 not resolved from previous therapies except vitiligo, stable neuropathy up to grade 2, hair loss, and stable endocrinopathies with substitutive hormone therapy * Documented history of active autoimmune disorders requiring systemic immunosuppressive therapy within the last 12 months * Primary or secondary immune deficiency * Active and uncontrolled infections requiring intravenous antibiotic or antiviral treatment * Seropositive (except after vaccination or confirmed cure for hepatitis) for HIV, HBV, or HCV * Clinically significant cardiac disease including heart failure, uncontrolled hypertension, pre-existing arrhythmia, uncontrolled angina pectoris, or myocardial infarction within 12 months * Dementia or altered mental status that would prohibit informed consent * Other malignancy within the last 3 years except adequately treated nonmelanoma skin cancer, in situ carcinoma of the uterine cervix, or myelodysplastic syndromes

Design outcomes

Primary

MeasureTime frame
Incidence and severity of treatment-emergent adverse events and clinically significant findings on clinical laboratory tests, performance status, vital signs, ECGs, and physical examinations.All assessments will be conducted from first study treatment administration through the End of Treatment or Early Termination Visit (scheduled within 14 days after the last dose).

Secondary

MeasureTime frame
Antitumor activity characterized by objective response rate per Lugano criteria.Tumor will be assessed at the end treatment cycles (3 and 6 weeks after the first dose), and every 12 weeks afterwards for up to of 2 years until progression of disease or starting new anti-cancer treatments.

Other

MeasureTime frame
Duration of OT-C001 persistence after administering OT-C001.From baseline (before lymphodepletion) to end of study treatment (within 14 days after the last dose of OT-C001).
Changes in serum cytokine levelsFrom baseline (before lymphodepletion) to end of study treatment (within 14 days after the last dose of OT-C001)

Countries

France

Contacts

Primary ContactErica Wang
e.wang@emercell.com886 921 865 855
Backup ContactBruno Piccolella
bruno.piccolella@onward-therapeutics.com+33 6 12 97 73 68

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026