A Phase I/II Study of the Tumor-targeting Human L19-IL2 Monoclonal Antibody-cytokine Fusion Protein in Combination With Rituximab in Relapsed or Refractory Diffuse Large B-cell Lymphoma (DLBCL)
Overview
- Phase
- Phase 1
- Intervention
- L19-IL2 - Ph I
- Conditions
- Diffuse Large B-cell Lymphoma (DLBCL)
- Sponsor
- Philogen S.p.A.
- Enrollment
- 6
- Locations
- 1
- Primary Endpoint
- The rate of patients with complete response CR after 2 cycles of treatment - phase II study
- Status
- Terminated
- Last Updated
- 2 years ago
Overview
Brief Summary
Phase I/II, open-label, multicenter, prospective study.
Detailed Description
Phase I - Dose definition: A prospective, open-label, multi-center Phase I dose escalation study in which cohorts of 3-6 patients will receive escalating doses of L19-IL2 in combination with a fixed dose of Rituximab (375 mg/m2). Phase II - Activity Evaluation: Open-label, multi-center, prospective study during which 14 enrolled patients will receive a fixed dose of Rituximab (375 mg/m2) in combination with L19-IL2 at the RD defined during the Phase I part of the study. The study is designed to establish whether L19-IL2, administered in combination with Rituximab is well tolerated and can achieve objective responses and clinical benefit to patients with relapsed or refractory DLBCL.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Histologically confirmed CD 20-positive DLBCL
- •Patients must have experienced relapse after or not have achieved CR with standard R-CHOP-like treatment and must be ineligible for autologous stem cell transplantation or must have relapsed/progressed after autologous or allogeneic stem cell transplantation. In this last case, time lapse between autologous stem cell transplantation and beginning of L19-IL2 treatment must not be less than 4 weeks; in case of allogeneic stem cell transplantation, L19-IL2 treatment can start 4 weeks after removal of immunosuppressive drug(s).
- •Presence of measurable lesions according to Revised response criteria for malignant lymphoma
- •Males or females, age ≥ 18 years
- •ECOG performance status ≤ 2
- •Life expectancy of at least 12 weeks
- •Absolute neutrophil count \> 1.5 x 109/L
- •Hemoglobin \> 8.0 g/dL
- •Platelets \> 50 x 109/L
- •Total bilirubin ≤ 30 µmol/L (or ≤ 2.0 mg/dl)
Exclusion Criteria
- •Evidence of central nervous system lymphoma
- •Previous or concurrent cancer that is distinct in primary site or histology from the cancer being evaluated in this study except cervical carcinoma in situ, treated basal cell carcinoma, superficial bladder tumors (TA, Tis \& Ti) or any cancer curatively treated \< 5 years prior to study entry
- •Hypersensitivity to Rituximab or to murine proteins, or to any of its excipients (Sodium citrate, Polysorbate 80, Sodium chloride, Sodium hydroxide, Hydrochloric acid)
- •History of HIV infection or infectious hepatitis B or C
- •Presence of active, severe infections (e.g., tuberculosis, sepsis and opportunistic infections or any infection requiring antimicrobial therapy) or other severe concurrent disease, which, in the opinion of the investigator, would place the patient at undue risk or interfere with the study. Patients with a history of recurring or chronic infections or with underlying conditions which may further predispose them to serious infections should be excluded from the study.
- •Active graft-versus-host disease in patients with a history of allogeneic stem cell transplantation
- •History within the last year of acute or subacute coronary syndromes including myocardial infarction, unstable or severe stable angina pectoris
- •Inadequately controlled cardiac arrhythmias including atrial fibrillation
- •Heart insufficiency (\> Grade II, New York Heart Association (NYHA) criteria)
- •Uncontrolled hypertension
Arms & Interventions
L19-IL2 + RTX
Phase I (Dose definition): Cohorts of 3-6 patients will receive Rituximab on day 1 and 8 of the first 3-weeks cycle (C1D1 and C1D8, respectively) and on day 1 of the second 3-weeks cycle (C2D1). During two uninterrupted 3-weeks cycles, L19-IL2 will be administered on C1D1, C1D8, C1D15 and C2D1, C2D8, C2D15. Phase II (Activity Evaluation): During Phase II, 14 patients will receive Rituximab on C1D1 and C1D8 and on C2D1. Two uninterrupted 3-weeks cycles of L19-IL2 at the RD determined during Phase I will be administered on C1D1, C1D8 and C1D15 and C2D1, C2D8 and C2D15.
Intervention: L19-IL2 - Ph I
L19-IL2 + RTX
Phase I (Dose definition): Cohorts of 3-6 patients will receive Rituximab on day 1 and 8 of the first 3-weeks cycle (C1D1 and C1D8, respectively) and on day 1 of the second 3-weeks cycle (C2D1). During two uninterrupted 3-weeks cycles, L19-IL2 will be administered on C1D1, C1D8, C1D15 and C2D1, C2D8, C2D15. Phase II (Activity Evaluation): During Phase II, 14 patients will receive Rituximab on C1D1 and C1D8 and on C2D1. Two uninterrupted 3-weeks cycles of L19-IL2 at the RD determined during Phase I will be administered on C1D1, C1D8 and C1D15 and C2D1, C2D8 and C2D15.
Intervention: L19-IL2 at RD - Ph II
L19-IL2 + RTX
Phase I (Dose definition): Cohorts of 3-6 patients will receive Rituximab on day 1 and 8 of the first 3-weeks cycle (C1D1 and C1D8, respectively) and on day 1 of the second 3-weeks cycle (C2D1). During two uninterrupted 3-weeks cycles, L19-IL2 will be administered on C1D1, C1D8, C1D15 and C2D1, C2D8, C2D15. Phase II (Activity Evaluation): During Phase II, 14 patients will receive Rituximab on C1D1 and C1D8 and on C2D1. Two uninterrupted 3-weeks cycles of L19-IL2 at the RD determined during Phase I will be administered on C1D1, C1D8 and C1D15 and C2D1, C2D8 and C2D15.
Intervention: Rituximab
Outcomes
Primary Outcomes
The rate of patients with complete response CR after 2 cycles of treatment - phase II study
Time Frame: From Day 38 to Day 42
Number of patients with adverse events that are related to treatment and classified as DLTs for each administered dosage - phase I study
Time Frame: Up to Day 21 of the Cycle 1 (cycle of 21 days)
To assess the dose limiting toxicity (DLT), maximum tolerated dose (MTD) and recommended dose (RD) of L19-IL2 in combination with Rituximab
Secondary Outcomes
- Percentage of Participants With Worst On-Study Hematological and Chemistry Abnormalities - phase II study(Up to 24 months)
- Number of Patients With Abnormal Physical Examinations - phase II study(Up to 24 months)
- Relative percentage difference in vital signs from baseline - phase II study(Up to 24 months)
- The overall response rate (ORR) - phase II study(Up to 24 months)
- Median progression free survival (PFS) - phase II study(Up to 24 months)
- Median overall survival (OS) - phase II study(Up to 24 months)
- Human anti-fusion protein antibodies (HAFA) levels - phase II study((1) at Day 2, (2) at Day 23, (3) from Day 38 to Day 42, (4) from Day 80 to Day 84)
- The overall response rate (ORR) - phase I study(Up to 24 months)
- Median overall survival (OS) - phase I study(Up to 24 months)
- Pharmacokinetics assessment of L19-IL2 through blood sampling - phase I study(At Day 2 of Cycle 1)
- Median progression free survival (PFS) - phase I study(Up to 24 months)
- Human anti-fusion protein antibodies (HAFA) levels - phase I study((1) at Day 2, (2) at Day 23, (3) from Day 38 to Day 42, (4) from Day 80 to Day 84)
- Percentage of Participants With On-Study Adverse Events (AEs) and Serious Adverse Events (SAEs) - phase II study(Up to 24 months)