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Study of PIT565 in Relapsed and/or Refractory B-cell Malignancies

A Phase I, Open-label, Multi-center Study of PIT565 in Patients With Relapsed and/or Refractory B-cell Malignancies

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05397496
Enrollment
61
Registered
2022-05-31
Start date
2022-10-03
Completion date
2027-01-04
Last updated
2026-07-28

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

Conditions

B-cell Acute Lymphoblastic Leukemia (B-ALL), B-cell Non-Hodgkin Lymphoma (B-NHL)

Keywords

Phase I, Trispecific antibody, Non-Hodgkin lymphoma, Acute Lymphoblastic Leukemia, PIT565

Brief summary

This is an open-label, multicenter, phase I study, which primary objective is to characterize the safety and tolerability of PIT565 and to identify maximal tolerated doses (MTDs) and/or recommended doses (RDs), schedule and route of administration in relapsed and/or refractory B-cell Non-Hodgkin lymphoma (R/R B-NHL) and relapsed and/or refractory B-cell acute lymphoblastic leukemia (R/R B-ALL).

Detailed description

This is an open-label, multicenter, phase I study of PIT565 in patients with R/R B-NHL and R/R B-ALL. The study comprises a dose escalation part of PIT565 in two independent groups (group A: R/R B-NHL and B: R/R B-ALL) and a dose expansion part in three independent groups (R/R large B-cell lymphoma (LBCL) randomized in 1:1 ratio to two RDs (A1 and A2), and R/R B-ALL (B1)). During the dose escalation, the safety (including the dose-dose limiting toxicity (DLT) relationship) and tolerability of PIT565 will be assessed, and schedule(s), route(s) of administration and dose(s) will be identified for use in the expansion part based on the review of these data. The RD will also be guided by the available information on pharmacokinetics (PK), pharmacodynamics (PD), and preliminary anti-tumor activity. The dose escalation will be guided by an adaptive Bayesian logistic regression model (BLRM) following the Escalation with Overdose Control (EWOC) principle. Different schedules and routes of administrations will be explored in the dose escalation groups. The dose expansion will further explore the MTD(s) and/or RD(s) and the selected schedule(s) and route of administration(s) in the three patients' groups.

Interventions

BIOLOGICALPIT565

Intravenous (i.v.) infusion or Subcutaneous (s.c.) injection

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* Signed informed consent must be obtained prior to participation in the study. * Male or female patients ≥18 years of age at the date of signing the informed consent form * Eastern Cooperative Oncology Group (ECOG) performance status ≤2 NHL patient population * Refractory or relapsed B-NHL * Must have relapsed after or failed to respond to at least two prior treatment therapies including an αCD20 monoclonal antibody containing chemotherapy combination regimen * Must have at least one bi-dimensionally measurable nodal lesion or one bi-dimensionally measurable extranodal lesion, as measured on positron emission tomography-computed tomography (PET/CT) scan ALL patient population * Refractory or relapsed CD19-positive B-ALL * Morphologic disease in the bone marrow (≥ 5% blasts)

Exclusion criteria

* History of severe hypersensitivity to any ingredient of the study treatment or its excipients * Contraindication to tocilizumab * History of ongoing, chronic or recurrent infectious disease, or evidence of tuberculosis infection * Malignant disease, other than that being treated in this study. Exceptions to this exclusion include the following: malignancies that were treated curatively and have not recurred within 2 years prior to study treatment; completely resected basal cell and squamous cell skin cancers, and completely resected carcinoma in situ of any type * Active central nervous system (CNS) involvement by malignancy or presence of symptomatic CNS metastases, or CNS metastases that require local CNS-directed therapy (such as radiotherapy or surgery), or increasing doses of corticosteroids within the 2 weeks prior to the start of study treatment * Active, known or suspected autoimmune disease other than patients with vitiligo, residual hypothyroidism only requiring hormone replacement, psoriasis not requiring systemic treatment or conditions not expected to recur * Patients receiving systemic treatment with any immunosuppressive medication Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Incidence and severity of Dose Limiting Toxicities (DLTs)28 days or 35 days, depending on the dosing scheduleAssessment of safety of study drug. A dose-limiting toxicity (DLT) is defined as an adverse event or abnormal laboratory value of CTCAE grade 3 or higher that occurs within the DLT evaluation period (28 days or 35 days depending on the schedule) and that is not primarily related to disease, disease progression, intercurrent illness, or concomitant medications with exceptions provided in the clinical protocol.
Incidence and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs)21 monthsAssessment of safety of study drug.
Frequency of dose interruptions21 monthsAssessment of tolerability of study drug
Frequency of dose reductions21 monthsAssessment of tolerability of study drug
Dose intensities21 monthsAssessment of tolerability of study drug Dose intensity is defined as the ratio of actual cumulative dose received and actual duration of exposure.

Secondary

MeasureTime frameDescription
Overall Response Rate (ORR)21 monthsEvaluation of anti-tumor activity of PIT565 for Non-Hodgkin Lymphoma will be based on the Lugano Response Criteria Classification and anti-tumor activity of PIT565 for Acute Lymphoblastic Leukemia will be based on National Comprehensive Cancer Network (NCCN) 2018 v1 guidelines. Local investigator assessment will be used for analysis of efficacy endpoints.
Complete Response (CR) rate21 monthsEvaluation of anti-tumor activity of PIT565 for Non-Hodgkin Lymphoma will be based on the Lugano Response Criteria Classification and anti-tumor activity of PIT565 for Acute Lymphoblastic Leukemia will be based on National Comprehensive Cancer Network (NCCN) 2018 v1 guidelines. Local investigator assessment will be used for analysis of efficacy endpoints.
Best Overall Response (BOR)21 monthsEvaluation of anti-tumor activity of PIT565 for Non-Hodgkin Lymphoma will be based on the Lugano Response Criteria Classification and anti-tumor activity of PIT565 for Acute Lymphoblastic Leukemia will be based on National Comprehensive Cancer Network (NCCN) 2018 v1 guidelines. Local investigator assessment will be used for analysis of efficacy endpoints.
Duration Of Response (DOR)21 monthsEvaluation of anti-tumor activity of PIT565 for Non-Hodgkin Lymphoma will be based on the Lugano Response Criteria Classification and anti-tumor activity of PIT565 for Acute Lymphoblastic Leukemia will be based on National Comprehensive Cancer Network (NCCN) 2018 v1 guidelines. Local investigator assessment will be used for analysis of efficacy endpoints.
Overall Survival (OS)33 monthsEvaluation of anti-tumor activity of PIT565 for Non-Hodgkin Lymphoma will be based on the Lugano Response Criteria Classification and anti-tumor activity of PIT565 for Acute Lymphoblastic Leukemia will be based on National Comprehensive Cancer Network (NCCN) 2018 v1 guidelines. Local investigator assessment will be used for analysis of efficacy endpoints.
Progression Free Survival (PFS)21 monthsEvaluation of anti-tumor activity of PIT565 for Non-Hodgkin Lymphoma will be based on the Lugano Response Criteria Classification Local investigator assessment will be used for analysis of efficacy endpoints.
Event-free survival (EFS)21 monthsEvaluation of anti-tumor activity of PIT565 for Acute Lymphoblastic Leukemia will be based on National Comprehensive Cancer Network (NCCN) 2018 v1 guidelines. Local investigator assessment will be used for analysis of efficacy endpoints.
Maximum concentration of PIT565 (Cmax)21 monthsPharmacokinetics (PK) parameters will be determined using non-compartmental method(s)
Area Under the Curve of PIT565 (AUC)21 monthsPharmacokinetics (PK) parameters will be determined using non-compartmental method(s)
Trough concentration of PIT565 (C trough)21 monthsPharmacokinetics (PK) parameters will be determined using non-compartmental method(s)
Prevalence of Anti-drug antibodies (ADA) at baselineBaselineAssessment of anti-PIT565 antibodies in serum.
Incidence of Anti-drug antibodies (ADA) on treatment21 monthsAssessment of anti-PIT565 antibodies in serum.

Countries

Belgium, China, France, Israel, Italy, Japan, Singapore, Spain, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 29, 2026