A Study of Loncastuximab Tesirine and Rituximab (Lonca-R) in Previously Untreated Unfit/Frail Participants With Diffuse Large B-cell Lymphoma (DLBCL)

NCT ID: NCT05144009

Last Updated: 2025-01-30

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: PHASE2
• Total Enrollment: 41 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-06-21
• Study Completion Date: 2024-01-22

Brief Summary

The main objective of the trial is to assess the efficacy and tolerability of Lonca-R in unfit and frail participants with previously untreated DLBCL.

Detailed Description

The primary objectives of this trial are shown below:

Cohort A: To assess the efficacy of a response-adapted treatment of Lonca-R in unfit participants with previously untreated DLBCL, high-grade B cell lymphoma (HGBCL), or Grade 3b follicular lymphoma (FL).

Cohort B: To assess the tolerability and efficacy of a response-adapted treatment of Lonca-R in frail participants with previously untreated DLBCL, or HGBCL, or Grade 3b FL who are ineligible for standard R-mini-CHOP.

The simplified geriatric assessment (sGA) developed by the Fondazione Italiana Linfomi (FIL) identifies three distinct categories (fit, unfit, and frail) based on age, activities of daily living (ADL), instrumental activities of daily living (IADL) and the Cumulative Illness Rating Scale for Geriatrics (CIRS-G). Participants will be assigned to Cohort A (unfit) or B (frail) using the sGA.

Conditions

Diffuse Large B-cell Lymphoma

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: SEQUENTIAL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Cohort A : Loncastuximab Tesirine + Rituximab (Lonca-R)

Participants who are unfit (per sGA) will receive Lonca-R for 3 cycles. Participants who achieve a complete response (CR) will receive Lonca-R for 1 additional cycle. Participants who achieve a partial response (PR) will receive Lonca-R for 3 additional cycles.

Lonca-R will be administered as rituximab 375 mg/m^2 on Day 1 of Cycle 1 and loncastuximab tesirine 150 µg/kg on Day 2 of Cycle 1. During Cycle 2, Lonca-R will be administered as rituximab* 375 mg/m^2 and loncastuximab tesirine 150 µg/kg on Day 1. For cycles 3 and beyond, Lonca-R will be administered as rituximab 375 mg/m^2 and loncastuximab tesirine 75 µg/kg on Day 1.

*subcutaneous rituximab 1400mg/dose may be used during Cycle 2 and beyond

Group Type: EXPERIMENTAL

Loncastuximab Tesirine

Intervention Type: DRUG

Intravenous (IV) Infusion

Rituximab

Intervention Type: DRUG

Cycle 1 - Intravenous (IV) Infusion. Cycle 2+ - Intravenous (IV) Infusion or Subcutaneous (SC) Administration.

Cohort B : Loncastuximab Tesirine + Rituximab (Lonca-R)

Participants who are frail (per sGA) or participants with cardiac comorbidities will receive Lonca-R for 3 cycles. Participants who achieve a CR will receive Lonca-R for 1 additional cycle. Participants who achieve a PR will receive Lonca-R for 3 additional cycles for a total of up to 6 cycles. Only participants enrolled in Cohort B, who achieve stable disease (SD) and deriving clinical benefit per the treating physician, may also receive Lonca-R for an additional 3 cycles.

Lonca-R will be administered as rituximab 375 mg/m^2 on Day 1 of Cycle 1 and loncastuximab tesirine 150 µg/kg on Day 2 of Cycle 1. During Cycle 2, Lonca-R will be administered as rituximab* 375 mg/m^2 and loncastuximab tesirine 150 µg/kg on Day 1. For cycles 3 and beyond, Lonca-R will be administered as rituximab 375 mg/m^2 and loncastuximab tesirine 75 µg/kg on Day 1.

*subcutaneous rituximab 1400mg/dose may be used during Cycle 2 and beyond

Group Type: EXPERIMENTAL

Loncastuximab Tesirine

Intervention Type: DRUG

Intravenous (IV) Infusion

Rituximab

Intervention Type: DRUG

Cycle 1 - Intravenous (IV) Infusion. Cycle 2+ - Intravenous (IV) Infusion or Subcutaneous (SC) Administration.

Interventions

Loncastuximab Tesirine

Intravenous (IV) Infusion

Intervention Type: DRUG

Rituximab

Cycle 1 - Intravenous (IV) Infusion. Cycle 2+ - Intravenous (IV) Infusion or Subcutaneous (SC) Administration.

Intervention Type: DRUG

Other Intervention Names

Zynlonta; ADCT-402

Eligibility Criteria

Inclusion Criteria

• Pathologic diagnosis of DLBCL, as defined by the 2016 World Health Organization (WHO) classification (including participants with DLBCL transformed from indolent lymphoma), or HGBCL, or Grade 3b FL.
• Measurable disease as defined by the 2014 Lugano Classification.
• Stages I-IV.
• ECOG PS 0-2; ECOG PS 3 allowed if decline in status is deemed related to lymphoma & felt to be potentially reversible by the treating physician.
• Adequate organ function as defined by screening laboratory values within the following parameters:

1. Absolute neutrophil count (ANC) ≥1.0 x 10^3/µL (off growth factors at least 72 hours).

2. Platelet count ≥75 x 10^3/µL without transfusion in the past 7 days.

3. Alanine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma glutamyl transferase (GGT) ≤2.5 x the upper limit of normal (ULN).

4. Total bilirubin ≤1.5 x ULN (participants with known Gilbert's syndrome may have a total bilirubin up to ≤3 x ULN).

5. Calculated creatinine clearance >30 mL/min by the Cockcroft and Gault equation.

Note: A laboratory assessment may be repeated a maximum of two times during the screening period to confirm eligibility.

• Women of childbearing potential (WOCBP) must agree to use a highly effective method of contraception from the time of giving informed consent until at least 12 months after the last dose of study treatment. Men with female partners who are of childbearing potential must agree to use a condom when sexually active or practice total abstinence from the time of the first dose until at least 7 months after the participant receives his last dose of study treatment.

• Unfit as defined by the simplified geriatric assessment (sGA). Includes all of the following:

1. Aged ≥80 years

2. ADL score of 6

3. IADL score of 8

4. CIRS-G: no score of 3-4 and <5 scores of 2

• Frail as defined by sGA:

1. Aged ≥80 years

2. ADL score of <6 and/or

3. IADL score of <8 and/or

4. CIRS-G: ≥1 score of 3-4 and/or >5 scores of 2 OR

• Aged ≥65 - <80 with at least one of the following cardiac comorbidities that make anthracycline-containing regimens inadvisable as determined by the investigator.

1. Left ventricular ejection fraction (LVEF) ≥30 to <50%

2. History of myocardial infarction within 6 months prior to screening

3. Ischemic heart disease

4. History of stroke within 12 months prior to screening

Exclusion Criteria

• Known history of hypersensitivity to or positive serum human anti-drug antibody to a cluster of differentiation 19 (CD19) antibody.
• Previous therapy for DLBCL, HGBCL, or Grade 3b FL (with exception of corticosteroid course for symptom management of less than 14 days).
• Previous therapy with loncastuximab tesirine and rituximab for any indication.
• Known history of hypersensitivity to any component of study treatment (loncastuximab tesirine and rituximab)
• Human immunodeficiency virus (HIV) seropositive with any of the following:

1. CD4+ T-cell (CD4+) counts <350 cells/µL

2. Acquired immunodeficiency syndrome (AIDS) - defining opportunistic infection within 12 months prior to screening

3. Not on anti-retroviral therapy, or on anti-retroviral therapy for <4 weeks at the time of screening

4. HIV viral load ≥400 copies/mL

• Serologic evidence of chronic hepatitis B virus (HBV) infection and unable or unwilling to receive standard prophylactic antiviral therapy or with detectable HBV viral load.
• Serologic evidence of hepatitis C virus (HCV) infection without completion of curative treatment or with detectable HCV viral load.
• History of Stevens-Johnson syndrome or toxic epidermal necrolysis.
• Lymphoma with active central nervous system involvement at the time of screening, including leptomeningeal disease.
• Clinically significant third space fluid accumulation (i.e., ascites requiring drainage or pleural effusion that is either requiring drainage or associated with shortness of breath).
• Major surgery, radiotherapy, chemotherapy, or other anti-neoplastic therapy within 14 days prior to start of study drug (Cycle 1 Day 1 [C1D1]), except shorter if approved by the Sponsor.
• Use of any other experimental medication within 14 days prior to start of study drug (C1D1).
• Received live vaccine within 4 weeks of C1D1.
• Congenital long QT syndrome or a corrected Fridericia correction of the QT measure (QTcF) interval of >480 ms at screening (unless secondary to pacemaker or bundle branch block).
• Active second primary malignancy other than non-melanoma skin cancers, non-metastatic prostate cancer, in situ cervical cancer, ductal or lobular carcinoma in situ of the breast, or other malignancy that the Sponsor's Medical monitor and Investigator agree, and document should not be exclusionary.
• Any other significant medical illness, abnormality, or condition that would, in the Investigator's judgment, make the participant inappropriate for study participation or put the participant at risk.

• Minimum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

ADC Therapeutics S.A.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

University of Arizona Cancer Center

Tucson, Arizona, United States

Winthrop P. Rockefeller Cancer Institute

Little Rock, Arkansas, United States

Rocky Mountain Cancer Centers - Aurora

Aurora, Colorado, United States

USOR - Illinois Cancer Specialists - Niles

Niles, Illinois, United States

Leonard Lawson Cancer Center

Pikeville, Kentucky, United States

Cancer Care Specialists - Nevada

Reno, Nevada, United States

New York Cancer & Blood Specialists - New Hyde Park

Babylon, New York, United States

New York Cancer & Blood Specialists - Babylon Medical Oncology

Port Jefferson, New York, United States

Novant Health Cancer Specialists - Charlotte

Charlotte, North Carolina, United States

USOR - Oncology Hematology Care - Kenwood

Cincinnati, Ohio, United States

University Hospitals Cleveland Medical Center

Cleveland, Ohio, United States

Ohio Health - Research and Innovation Institute

Columbus, Ohio, United States

Willamette Valley Cancer Institute and Research Center - Eugene

Eugene, Oregon, United States

Reading Hospital - Tower Health

Reading, Pennsylvania, United States

Prisma Health Cancer Institute

Greenville, South Carolina, United States

Avera Cancer Institute

Sioux Falls, South Dakota, United States

Texas Oncology - Austin Midtown

Austin, Texas, United States

Texas Oncology - Medical City Dallas

Dallas, Texas, United States

USOR - Texas Oncology - Presbyterian Cancer Center Dallas

Dallas, Texas, United States

USOR - Texas Oncology - Baylor Charles A. Sammons Cancer Center

Dallas, Texas, United States

University of Texas MD Anderson Cancer Center

Houston, Texas, United States

USOR - Texas Oncology - San Antonio

San Antonio, Texas, United States

Texas Oncology Northeast Texas - Tyler

Tyler, Texas, United States

Blue Ridge Cancer Care - Blacksburg

Blacksburg, Virginia, United States

USOR - Virginia Cancer Specialists - Gainesville Office

Gainesville, Virginia, United States

Virginia Cancer Institute - West End

Richmond, Virginia, United States

USOR - Virginia Oncology Associates

Virginia Beach, Virginia, United States

Kadlec Clinic - Hematology and Oncology

Richland, Washington, United States

USOR - Northwest Cancer Specialists, P.C. dba Compass Oncology - Vancouver Cancer Center

Vancouver, Washington, United States

Ospedaliera Santi Antonio E Biagio E Cesare Arrigo-SC Ematologia

Alessandria, , Italy

Azienda Socio Sanitaria Territoriale (ASST) degli Spedali Civili di Brescia

Brescia, , Italy

Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico

Milan, , Italy

Hospital Español Auxilio Mutuo

San Juan, , Puerto Rico

Hospital Universitario Marqués de Valdecilla

Santander, Cantabria, Spain

Clinica Universidad de Navarra - Pamplona

Pamplona, Navarre, Spain

Hospital del Mar - Parc de Salut Mar

Barcelona, , Spain

Institut Català d'Oncologia - Hospital Duran i Reynals (ICO L'Hospitalet)

Barcelona, , Spain

Hospital San Pedro de Alcantara

Cáceres, , Spain

Hospital Universitario Ramón y Cajal

Madrid, , Spain

Hospital Universitario Fundación Jiménez Díaz

Madrid, , Spain

Hospital Arnau de Vilanova

Valencia, , Spain

Countries

United States; Italy; Puerto Rico; Spain

Provided Documents

Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

2021-005312-57

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

2022-501601-12-00

Identifier Type: CTIS

Identifier Source: secondary_id

ADCT-402-203

Identifier Type: -

Identifier Source: org_study_id