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Study to Evaluate the Efficacy and Tolerability of Debio 1562 in Combination With Rituximab in Participants With Relapsed and/or Refractory DLBCL and Other Forms of NHL

Phase 2
Completed
Conditions
B-cell Non-Hodgkin's Lymphoma
Diffuse Large B-Cell Lymphoma
Interventions
Registration Number
NCT02564744
Lead Sponsor
Debiopharm International SA
Brief Summary

The primary purpose of the study was to determine the safety and tolerability, anti-tumor activity of the proposed Debio 1562 dose regimens in combination with rituximab.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
100
Inclusion Criteria
  • For Part 1 of the study, participants must have histopathologically confirmed diagnosis of R/R, DLBCL, FL, MZL/MALT, MCL, or other Sponsor approved NHL subtypes according to the World Health Organization (WHO) classification 2008 for which standard measures do not exist or are no longer effective.

  • For Part 2 and Part 3 of the study, participants must have histopathologically and clinically confirmed diagnosis of relapsed DLBCL. Participants will be considered to have a relapsed disease if they showed a duration of response of at least 24 weeks after their first line of therapy. The following participants with relapsed DLBCL will be enrolled:

    1. Participants who received only one line of previous therapy and achieved either complete response (CR) or partial response (PR) for at least 24 weeks (from the last day of the last cycle) after their first line of therapy, but are not eligible for high dose chemotherapy with autologous stem cell transplantation (HD-ASCT)
    2. Participants who received more than one line of previous therapy (including HD-ASCT), and have achieved a duration of response (CR or PR) of at least 8 weeks (from the last day of the last cycle) after their last line of therapy
  • Participants must have evaluable or measurable disease in accordance with the International Working Group Guidelines for Lymphoma.

  • Participants must have received at least one but no more than six prior treatment regimens. Prior treatment with an anti-cluster of differentiation 20 (anti-CD20) agent, either alone or in combination, is allowed.

  • Participants must have Eastern Cooperative Oncology Group (ECOG) Performance Status 0 - 2.

  • Participants who are Hepatitis B surface antigen positive (HBsAg+) (must be polymerase chain reaction (PCR) negative) who are taking antivirals, are allowed to enroll.

Exclusion Criteria
  • Participants with a diagnosis of chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL).
  • For Part 2 and Part 3 of the study, participants with primary refractory DLBCL (defined as progression of disease within 24 weeks after first line of treatment).
  • For Part 2 and Part 3 of the study, participants that are eligible to undergo first time HD-ASCT.
  • For Part 2 and Part 3 of the study, participants with R/R FL, MZL/MALT, MCL, or any other NHL subtypes according to the WHO classification.
  • Participants with active hepatitis A, B or C infection.
  • Women who are pregnant or breast feeding.
  • Participants who have received prior therapy with other anti-CD37-targeting therapy.
  • Participants who have known central nervous system, meningeal, or epidural disease including brain metastases.
  • Participants with impaired cardiac function or clinically significant cardiac disease.
  • Participants currently presenting interstitial lung disease, diffuse parenchymal lung disease, or with a past history of severe/Grade 3 parenchymal lung disorders.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Part 1: Cohort 1Debio 1562Participants with R/R DLBCL received Debio 1562 0.7 mg/kg, IV infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of 21-day cycles until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 1: Cohort 2Debio 1562Participants with R/R, FL, MZL/MALT, MCL or other NHL with the Sponsor's approval received Debio 1562 0.7 mg/kg, IV infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of 21-day cycles until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 1: Safety Run-inDebio 1562Participants with a diagnosis of relapsed and/or refractory (R/R) Diffuse Large B-Cell Lymphoma (DLBCL), and with non-Hodgkin's lymphoma (NHL) including follicular lymphoma (FL), marginal zone lymphoma/mucosa-associated lymphoid tissue (MZL/MALT), mantle cell lymphoma (MCL) or other NHL with the Sponsor's approval received Debio 1562 0.7 mg/kg, intravenous (IV) infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of 21-day cycles until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 2/3: Cohort BDebio 1562Participants with relapsed DLBCL received Debio 1562 0.4 mg/kg IV infusion followed by rituximab 375 mg/m\^2 IV infusion on Day 1, then Debio 1562 0.2 mg/kg IV infusion on Days 8 and 15 of a 21-day cycle for at least 6 cycles and/or until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 2/3: Cohort ADebio 1562Participants with relapsed DLBCL received Debio 1562 0.7 mg/kg, IV infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of a 21-day cycle for at least 6 cycles and/or until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 1: Safety Run-inRituximabParticipants with a diagnosis of relapsed and/or refractory (R/R) Diffuse Large B-Cell Lymphoma (DLBCL), and with non-Hodgkin's lymphoma (NHL) including follicular lymphoma (FL), marginal zone lymphoma/mucosa-associated lymphoid tissue (MZL/MALT), mantle cell lymphoma (MCL) or other NHL with the Sponsor's approval received Debio 1562 0.7 mg/kg, intravenous (IV) infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of 21-day cycles until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 1: Cohort 1RituximabParticipants with R/R DLBCL received Debio 1562 0.7 mg/kg, IV infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of 21-day cycles until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 1: Cohort 2RituximabParticipants with R/R, FL, MZL/MALT, MCL or other NHL with the Sponsor's approval received Debio 1562 0.7 mg/kg, IV infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of 21-day cycles until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 2/3: Cohort ARituximabParticipants with relapsed DLBCL received Debio 1562 0.7 mg/kg, IV infusion followed by rituximab 375 mg/m\^2 IV infusion, once on Day 1 of a 21-day cycle for at least 6 cycles and/or until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Part 2/3: Cohort BRituximabParticipants with relapsed DLBCL received Debio 1562 0.4 mg/kg IV infusion followed by rituximab 375 mg/m\^2 IV infusion on Day 1, then Debio 1562 0.2 mg/kg IV infusion on Days 8 and 15 of a 21-day cycle for at least 6 cycles and/or until the study discontinuation criteria were met (until they develop disease progression, death, unacceptable toxicity, withdraw consent, start new anti-lymphoma treatment or the Sponsor terminates the study).
Primary Outcome Measures
NameTimeMethod
Number of Participants With Clinically Significant Changes in Clinical Laboratory Test Results Reported as TEAEsUp to 30 days after EOT (Up to 38 months)

The clinical laboratory tests included Hematology: Hematocrit (Hct), hemoglobin (Hgb), platelet count, red blood cell (RBC) count, white blood cell (WBC) count with differential; Serum Chemistry: Albumin (ALB), alkaline phosphatase (ALK-P), alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), calcium (Ca), chloride (Cl), creatinine, glucose, lactate dehydrogenase (LDH), magnesium, phosphorus, potassium (K), sodium (Na), total bilirubin, total protein, uric acid, immunoglobulin levels (IgG, IgA, IgM); Urinalysis: Appearance, specific gravity and pH, evaluation of glucose, protein, bilirubin, ketones, leukocytes and blood; Coagulation: Prothrombin time (PT) or international normalized ratio (INR), activated partial thromboplastin time (aPTT).

Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Reported as TEAEsUp to 30 days after EOT (Up to 38 months)

A standard 12-lead ECG was performed.

Number of Participants With Clinically Significant Changes in Vital Sign Measurements Reported as TEAEsUp to 30 days after EOT (Up to 38 months)

Vital signs included systolic and diastolic blood pressure, heart rate, temperature, and respiratory rate.

Objective Response Rate (ORR)Up to Progressive Disease (PD) or death (up to approximately 55 months) or initiation of new anti-cancer therapy whichever occurs first

ORR was defined as the percentage of participants with a Best overall response (BOR) of partial response (PR) or complete response (CR). BOR was the best response recorded from the start of the treatment until disease progression, initiation of new anti-cancer therapy, or end of the study period, whichever occurred first. CR was defined as disappearance of all target lesions, no new lesions formation. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to ≤1.5 cm. PR was defined as ≥50% decrease in the sum of diameters of up to 6 target measurable nodes or extranodal sites, no new lesions formation.

Number of Participants With Treatment-emergent Adverse Events (TEAEs)Up to 30 days after end of treatment (EOT) (Up to 38 months)

An AE was defined as any noxious, pathologic, or unintended change in anatomical, physiologic, or metabolic function as indicated by physical signs, symptoms, or laboratory changes occurring in any phase of a clinical study, whether or not considered study drug related. This included exacerbation of a pre-existing condition. AEs included worsening (change in nature, severity, or frequency) of conditions present at the onset of the study, intercurrent illnesses, drug interactions, events related to or possibly related to concomitant medications, abnormal laboratory values (this included significant shifts from baseline within the range of normal that the Investigator considered to be clinically important), clinically significant abnormalities in physical examination, vital signs, and weight.

Secondary Outcome Measures
NameTimeMethod
Area Under the Time-concentration Curve From Time 0 to Infinity (AUC0-inf) of Debio 1562 and RituximabParts 1, 2/3: Pre-dose, post infusion-5 min on Day 1 of C 1-6, 5 min on Day 1 of C 7, 8 and 2 h on Day 1 of C 1, 2 (only for Part 2/3), 24 h on Day 2, 48 h on Day 3, Days 8 and 15 of C 1, 2 (Cycle=21 days); EOT (up to 37 months), 30-day follow up
Terminal Half-life (t1/2) of Debio 1562 and RituximabParts 1, 2/3: Pre-dose, post infusion-5 min on Day 1 of C 1-6, 5 min on Day 1 of C 7, 8 and 2 h on Day 1 of C 1, 2 (only for Part 2/3), 24 h on Day 2, 48 h on Day 3, Days 8 and 15 of C 1, 2 (Cycle=21 days); EOT (up to 37 months), 30-day follow up
Time to Response (TTR)Up to PD or death or end of study (approximately 57 months) or initiation of new anti-cancer therapy whichever occurs first

TTR was defined as the duration between the first dose date of Debio 1562 and the date of first objective response (PR or CR). CR was defined as disappearance of all target lesions, no new lesions formation. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to ≤ 1.5 cm. PR was defined as ≥50% decrease in the sum of diameters of up to 6 target measurable nodes or extranodal sites, no new lesions formation.

Maximum Plasma Drug Concentration (Cmax) of Debio 1562 and RituximabParts 1, 2/3: Pre and Post infusion: 5 min-Day (D) 1 of Cycles (C) 1-8 and 2 hours (h)-D1 of C1-2 (for Part 2/3), 24h-D2, 48h-D3 and D8, 15 of C1, 2; D1 of Month 37 (EOT) (rituximab only) and Month 38 (follow-up) (Cycle=21 days)
Area Under the Time-concentration Curve From Time 0 to t (AUC0-t) of Debio 1562 and RituximabParts 1, 2/3: Pre-dose, post infusion-5 min on Day 1 of C 1-6, 5 min on Day 1 of C 7, 8 and 2 h on Day 1 of C 1, 2 (only for Part 2/3), 24 h on Day 2, 48 h on Day 3, Days 8 and 15 of C 1, 2 (Cycle=21 days); EOT (up to 37 months), 30-day follow up
Clearance (CL) of Debio 1562 and RituximabParts 1, 2/3: Pre-dose, post infusion-5 min on Day 1 of C 1-6, 5 min on Day 1 of C 7, 8 and 2 h on Day 1 of C 1, 2 (only for Part 2/3), 24 h on Day 2, 48 h on Day 3, Days 8 and 15 of C 1, 2 (Cycle=21 days); EOT (up to 37 months), 30-day follow up
Volume of Distribution at Steady State (Vss) of Debio 1562 and RituximabParts 1, 2/3: Pre-dose, post infusion-5 min on Day 1 of C 1-6, 5 min on Day 1 of C 7, 8 and 2 h on Day 1 of C 1, 2 (only for Part 2/3), 24 h on Day 2, 48 h on Day 3, Days 8 and 15 of C 1, 2 (Cycle=21 days); EOT (up to 37 months), 30-day follow up
Time to Maximum Plasma Concentration (Tmax) of Debio 1562 and RituximabParts 1, 2/3: Pre-dose, post infusion-5 min on Day 1 of C 1-6, 5 min on Day 1 of C 7, 8 and 2 h on Day 1 of C 1, 2 (only for Part 2/3), 24 h on Day 2, 48 h on Day 3, Days 8 and 15 of C 1, 2 (Cycle=21 days); EOT (up to 37 months), 30-day follow up
Overall Survival (OS)Up to death or end of study (approximately 57 months) or one year from the last participant's first dose

OS was defined as the duration between the first dose date of Debio 1562 and the date of death due to any cause.

Duration of Response (DOR)Up to PD or death or end of study (approximately 57 months) or initiation of new anti-cancer therapy whichever occurs first

DOR was defined as duration between date of the first objective response (PR or CR) and date of PD or death due to any cause, whichever occurs first. CR: Disappearance of all target lesions, no new lesions formation, any pathological lymph nodes (whether target or non-target) must have reduction in short axis to ≤1.5 cm. PR: ≥50% decrease in sum of diameters of up to 6 target measurable nodes or extranodal sites, no new lesions formation. PD: New or clear progression of preexisting non-measured lesions or regrowth of previously resolved lesions or a new node \>1.5 cm in any axis or an abnormal lesion with \>1.5 cm longest transverse diameter or increase by \>50% of lesion.

Number of Participants With Anti-drug Antibodies (ADA) for Debio 1562Part 1: Pre-dose on Day 1 of Cycle(C)1 to 8; Part 2/3: Pre-dose on Day 1 of C1 to 6 and on Day 1 of C7 for participants who received treatment beyond C6 (each C=21 days); Parts 1, 2/3: Month 37 (EOT) and Month 38 (30-Day FU visit) (Cycle=21 days)

The potential immunogenicity against Debio 1562 was assessed in an ADA population.

Progression-free Survival (PFS)Up to PD or death or end of study (approximately 57 months) or initiation of new anti-cancer therapy whichever occurs first

PFS was defined as the duration between the first dose date of Debio 1562 and the date of progressive disease (PD) or death due to any cause, whichever occurs first. PD is defined as the new or clear progression of preexisting non-measured lesions or regrowth of previously resolved lesions or a new node \>1.5 cm in any axis or an abnormal lesion with \>1.5 cm longest transverse diameter or increase by \>50% of lesion.

Trial Locations

Locations (39)

Cleveland Clinic

🇺🇸

Cleveland, Ohio, United States

Abramson Cancer Center of The University of Pennsylvania

🇺🇸

Philadelphia, Pennsylvania, United States

Baylor University Medical Center

🇺🇸

Dallas, Texas, United States

Swedish Medical Center

🇺🇸

Seattle, Washington, United States

National Institute of Cancer

🇺🇦

Kyiv, Ukraine

CHU UCL Namur asbl - Site Godinne

🇧🇪

Yvoir, Namur, Belgium

St. Augustinus Hospital, Department of Hematology

🇧🇪

Wilrijk, Belgium

University Multiprofile Hospital for Active Treatment "Sveti Georgi"

🇧🇬

Plovdiv, Bulgaria

Specialized Hospital for Active Treatment of Hematological Diseases,Clinic of Hematology

🇧🇬

Sofia, Bulgaria

Cherkasy Regional Oncology Center, Regional Treatment and Diagnostic Hematology Center

🇺🇦

Cherkasy, Ukraine

University Hospitals Leuven, Campus Gasthuisberg

🇧🇪

Leuven, Belgium

University Clinical Center in Gdansk

🇵🇱

Gdańsk, Poland

Spartanburg Regional Healthcare System

🇺🇸

Spartanburg, South Carolina, United States

Jan Yperman Ziekenhuis

🇧🇪

Ieper, West-Vlaanderen, Belgium

Multiprofile Hospital for Active Treatment - Hristo Botev, Vratsa

🇧🇬

Vratsa, Bulgaria

Medical Center of the University of Pecs

🇭🇺

Pécs, Hungary

Communal Non-profit enterprise "Regional Center of Oncology"

🇺🇦

Kharkiv, Ukraine

Małopolskie Medical Centre

🇵🇱

Kraków, Poland

Grigoriev Institute for Medical Radiology and Oncology of the National Academy of Medical Sciences of Ukraine

🇺🇦

Kharkiv, Ukraine

Provincial Hospitals in Gdynia Sp. z o.o. (LLC)

🇵🇱

Gdynia, Poland

Regional Hospital of Bellinzona and Valli, Oncology Institute of Southern Switzerland

🇨🇭

Bellinzona, Ticino, Switzerland

Kyiv City Clinical Hospital #9, City Hematology Center

🇺🇦

Kyiv, Ukraine

Alabama Oncology

🇺🇸

Birmingham, Alabama, United States

Abbott Northwestern Hospital, Virginia Piper Cancer Institute

🇺🇸

Minneapolis, Minnesota, United States

Novant Health Oncology

🇺🇸

Winston-Salem, North Carolina, United States

University Hospital Brno

🇨🇿

Brno, Czechia

University Hospital Hradec Kralove

🇨🇿

Hradec Králové, Czechia

University Hospital Kralovske Vinohrady

🇨🇿

Prague, Czechia

University of Debrecen Clinical Center

🇭🇺

Debrecen, Hungary

United Hospitals Villa Sofia Cervello

🇮🇹

Palermo, Italy

University Hospital - Ospedali Riuniti Umberto I - GM Lancisi - G Salesi of Ancona

🇮🇹

Ancona, Italy

National Institute of Oncology

🇭🇺

Budapest, Hungary

General University Hospital in Prague

🇨🇿

Prague, Czechia

Civil Hospital of Brescia

🇮🇹

Brescia, Italy

Local Healthcare Company 8 Berica (Azienda ULSS8 Berica), Hospital San Bortolo of Vicenza

🇮🇹

Vicenza, Italy

St. John of Dukla Oncology Center of Lublin Land

🇵🇱

Lublin, Poland

National Research Center for Radiation Medicine

🇺🇦

Kyiv, Ukraine

Podillia Regional Oncology Center

🇺🇦

Vinnytsia, Ukraine

Carle Foundation Hospital, Cancer Center

🇺🇸

Urbana, Illinois, United States

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