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Research study aiming at investigating the potential safety of multiple administrations of NKR-2 after chemotherapy treatment targeting T-cells in patients with acute myeloid leukemia. The NKR-2 treatment is based on patient's own T-cells that will be collected and modified before being injected to generate anti-tumor responses.

An open-label, Phase I/II study to assess the safety and clinical activity of NKR-2 treatment administration after a non-myeloablative preconditioning chemotherapy in relapse/refractory acute myeloid leukemia or myelodysplastic syndrome patients. - DEPLETHINK – LymphoDEPLEtion and THerapeutic Immunotherapy with NKR-2

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2018-000205-22-BE
Enrollment
17
Registered
2018-02-21
Start date
2018-06-04
Completion date
Unknown
Last updated
2021-12-13

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

Conditions

NKR-2 has the potential to treat many distinct tumor-types. This trial will focus on Relapsed and/or refractory (r/r) acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS).

Interventions

Product Name: NKR-2 Product Code: NKR-2 Pharmaceutical Form: Concentrate for solution for infusion INN or Proposed INN: Not available CAS Number: Not applicab Current Sponsor code: NKR-2/DS Other desc

Sponsors

Celyad Onclogy SA
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Men or women = 18 and = 75 years old at the time of signing the Informed Consent Form (ICF). 2) The patient is not eligible for standard of care therapy and must have one of the following hematological malignancy: - A confirmed relapsed or refractory acute myeloid leukemia (AML) (i.e. = 5% blasts in bone marrow or in peripheral blood) after at least one prior therapy. - A confirmed myelodysplastic syndrome (MDS) with revised International Prognostic Scoring System (R-IPSS) criteria for Intermediate, High-risk or Very High-risk disease or refractory anemia with excess blasts by WHO (i.e. = 5% blasts in bone marrow or = 2% blasts in peripheral blood) or MDS with TP53 mutation as detected by next-generation sequencing (NGS). 3) The absolute peripheral blast count should be =65 years) yes F.1.3.1 Number of subjects for this age range 10

Exclusion criteria

Exclusion criteria: 1) Patient presenting with history of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis and/or active or acute exacerbation of chronic obstructive pulmonary disease (COPD). 2) Patient that received any cancer therapy within 2 weeks before the planned day for the apheresis (with the exception of hydroxyurea). 3) Patients receive, concurrently receive, or have received any investigational agent within 3 weeks before the planned day for the first NKR-2 administration (except for hydroxyurea). 4) Patient is under systemic immunosuppressive drugs, unless specific cases authorized per protocol. 5) Patients have received prior allogeneic stem cell transplantation or chimeric antigen receptor therapy.

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective is to document and characterized: Phase I: the safety of the NKR-2 treatment administration in r/r AML/MDS patients after a non-myeloablative preconditioning. Phase II: the clinical activity of the NKR-2 treatment administration in r/r AML/MDS patients after a non-myeloablative preconditionning;Secondary Objective: The secondary objectives are to document and characterize: • The NKR-2 peripheral blood kinetics post-administration, • Indicators of clinical activity, • Additional indicators of safety. ;Primary end point(s): Phase I: The occurrence of DLTs during the study treatment. Phase II: The objective response rate (ORR) post the first KKR-2 administration;Timepoint(s) of evaluation of this end point: Phase I: During the administration phase, up to administration phase concluding visit. Phase II: at W3, W7 (only if consolidation cycle), W11, and only for patients authorized for the consolidation cycle at M6, M9, M12, M18 and M24 post the first NKR-2 administration.

Secondary

MeasureTime frame
Secondary end point(s): PHASE I A - NKR-2 cell kinetics and dynamics endpoints 1) The evaluation of circulating NKR-2 in the peripheral blood and its kinetics post-injection. B - Safety endpoints 2) The occurrence of AEs and SAEs and any toxicity linked to study participation until the end of the treatment follow-up (at M24). C - Clinical activity endpoints 3) The overall survival (OS), relapse-free survival (RFS) and event-free survival (EFS) from study enrollment. 4) The objective clinical response rate (ORR) and objective clinical benefit rate (OCBR) post the first NKR-2 administration. 5) The duration of response for patients with objective clinical response 6) The ORR and duration of second response among patients retreated with NKR-2. 7) The cumulative incidence of relapse (CIR) and cumulative incidence of death (CID). 8) The non-relapse mortality (NMR) rate. 9) For AML patients: the incidence of CR, CRMRD-, CRi, MLFS, PR, or SD post NKR-2 administrations until the end of the treatment follow-up (at M24). 10) For MDS patients: the incidence of CR, PR, marrow CR, cytogenic response, hematologic improvement or SD post NKR-2 administrations until the end of the treatment follow-up (at M24). Phase II: A - Safety endpoints 1) The occurrence of DLTs during the administration phase, 2) The occurrence of AEs and SAEs and any toxicity linked to study participation until the end of the treatment follow-up (at M24). B - Clinical activity endpoints 3) The overall survival (OS), relapse-free survival (RFS) and event-free survival (EFS) from study enrollment. 4) The objective clinical benefit rate (OCBR) post the first NKR-2 administration. 5) The duration of response for patients with objective clinical response. 6) The ORR and duration of second response among patients retreated with NKR-2. 7) The cumulative incidence of relapse (CIR) and cumulative incidence of death (CID). 8) The non-relapse mortality (NMR) rate. 9) For AML patients: the incidence of CR, CRMRD-, CR

Countries

Belgium, United States

Contacts

Public ContactClinical Trial Information

Celyad Oncology SA

info@celyad.com3210394100

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026