RECRUITING

Loncastuximab Tesirine and Rituximab as Bridging Therapy Prior to Standard-of-care CD19 CAR T-cell Therapy in Patients With Large B-cell Lymphoma

Conditions

Relapsed or Refractory Large B-cell Lymphoma

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

The purpose of this clinical trial is to learn if the study treatment Loncastuximab tesirine and Rituximab is safe and efficient before standard of care chimeric antigen receptor T-cell (CAR-T) therapy in patients with relapsed or refractory large B-cell lymphoma.

Official Title

A Phase 2 Study of Loncastuximab Tesirine and Rituximab as Bridging Therapy Prior to Standard-of-care CD19 CAR T-cell Therapy in Patients With Large B-cell Lymphoma

Quick Facts

Study Start:2025-07-01

Study Completion:2030-03

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06788964

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
* Subject aged ≥ 18 years. * Intended to receive commercial CD19-directed CAR-T cell therapy (axi-cel and liso-cel). * Need for bridging therapy as deemed clinically necessary by the treating physician. * Relapsed or refractory DLBCL, tFL or PMBCL as defined by the 2016 World Health Organization classification (including patients with DLBCL transformed from indolent lymphoma), or high-grade B-cell lymphoma (HGBL), not otherwise specified, and HGBL with MYC and BCL2 and/or BCL6 rearrangements. * Measurable disease as defined by the 2014 Lugano Classification as assessed by positron-emission tomography (PET)- computed tomography (CT) or by CT or magnetic resonance imaging (MRI) if the tumor is not fluorodeoxyglucose (FDG)-avid on screening PET-CT. * ECOG Performance Status ≤ 2. * Time between prior anticancer therapy and first dose of lonca-R as below * Autologous hematopoietic cell transplantation - At least 30 days * Allogeneic hematopoietic cell transplantation - At least 60 days * Cytotoxic chemotherapy - At least 21 days * Non-cytotoxic chemotherapy (e.g., small molecule inhibitor) - At least 14 days * Adequate organ function as defined as: * Hematologic: * Absolute neutrophil count (ANC) ≥ 1000/mm3 * Platelet count ≥ 75,000/mm3 * Hemoglobin ≥ 8 g/dL * Hepatic: * Bilirubin ≤1.5 x upper limit of normal (ULN) or ≤3 x ULN with document liver involvement and/ or Gilbert's disease * Transaminases (AST or ALT) ≤ 3 x ULN or ≤ 5 x ULN with documented liver involvement * Renal: * Estimated creatinine clearance ≥ 60 mL/min by Cockcroft-Gault formula. * For female subjects: Negative pregnancy test or evidence of post-menopausal status. The post-menopausal status will be defined as having been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply: * Women \< 50 years of age: * Amenorrheic for ≥ 12 months following cessation of exogenous hormonal treatments; and * Luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution; or * Underwent surgical sterilization (bilateral oophorectomy or hysterectomy). * Women ≥ 50 years of age: * Amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments; or * Had radiation-induced menopause with last menses \>1 year ago; or * Had chemotherapy-induced menopause with last menses \>1 year ago; or * Underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy, or hysterectomy). * Female subjects of childbearing potential and male subjects with a sexual partner of childbearing potential must agree to use a highly effective method of contraception and the lactation requirements as described in Sections 5.41.1 and 5.4.2. * Subjects or their legal representatives must be able to read, understand, and provide informed consent to participate in the trial. * Willing and capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in the protocol	* Previous treatment with any anti-CD19 therapy including lonca or prior CD19 CAR T-cell therapy * Subjects receiving investigational CAR-T products * Major surgery within 4 weeks prior to starting study therapy. * History of bleeding diathesis (e.g., von Willebrand's disease), hemophilia, or active bleeding. * Subjects with chronic liver disease with hepatic impairment Child-Pugh class C * Pregnant or lactating or intending to become pregnant during the study * Active graft-versus-host disease * Post-transplantation lymphoproliferative disorders * Active autoimmune disease which, in the opinion of the investigator, may negatively impact subject safety or interfere with study participation. * The diagnosis of another malignancy which, in the opinion of the investigator, is likely to negatively impact subject safety or interfere with study participation. * Subjects with known CNS involvement. * Significant medical diseases or conditions including those requiring substantial changes in concomitant medications, as assessed by the investigator, that would substantially increase the risk-to-benefit ratio of participating in the study. This includes, but is not limited to the following conditions: * Cardiovascular disorders: * Congestive heart failure New York Heart Association Class III or IV, unstable angina pectoris, serious cardiac arrhythmias. * Myocardial infarction (MI) within 6 months before the first dose. * QTc prolongation defined as a QTcF \> 480 ms. * Congenital long QT syndrome or a corrected QT measure (QTc) interval of \>480 ms at screening (unless secondary to pacemaker or bundle branch block). * Severe pulmonary disease * Uncontrolled diabetes mellitus * Severely immunocompromised state * Any other condition that would, in the Investigator's judgment, contraindicate the subject's participation in the clinical study due to safety concerns or compliance with clinical study procedures. * Active systemic bacterial, viral, fungal, or other infection requiring systemic treatment at time of screening * HIV infection. * Subjects with evidence of active hepatitis B infection, based on positive surface antigen or Hepatitis B DNA PCR are excluded. Subjects who are Hepatitis B core antibody positive must take prophylaxis with entecavir or equivalent and be willing to undergo monthly Hepatitis B DNA PCR testing. Subjects with active Hep C patients may be enrolled if other parameters precluding hepatic impairment are met and they are not undergoing active therapy for hepatitis C. * Known prior severe hypersensitivity to a CD19 antibody, lonca (including SG3249) or any of its excipients, or history of positive serum human ADA to a CD19 antibody. * Subjects taking prohibited medications as described in Section 6.8.1. A washout period of prohibited medications for a period of at least five half-lives or as clinically indicated should occur before the start of treatment.

Inclusion Criteria

Exclusion Criteria

* Subject aged ≥ 18 years.
* Intended to receive commercial CD19-directed CAR-T cell therapy (axi-cel and liso-cel).
* Need for bridging therapy as deemed clinically necessary by the treating physician.
* Relapsed or refractory DLBCL, tFL or PMBCL as defined by the 2016 World Health Organization classification (including patients with DLBCL transformed from indolent lymphoma), or high-grade B-cell lymphoma (HGBL), not otherwise specified, and HGBL with MYC and BCL2 and/or BCL6 rearrangements.
* Measurable disease as defined by the 2014 Lugano Classification as assessed by positron-emission tomography (PET)- computed tomography (CT) or by CT or magnetic resonance imaging (MRI) if the tumor is not fluorodeoxyglucose (FDG)-avid on screening PET-CT.
* ECOG Performance Status ≤ 2.
* Time between prior anticancer therapy and first dose of lonca-R as below
* Autologous hematopoietic cell transplantation - At least 30 days
* Allogeneic hematopoietic cell transplantation - At least 60 days
* Cytotoxic chemotherapy - At least 21 days
* Non-cytotoxic chemotherapy (e.g., small molecule inhibitor) - At least 14 days
* Adequate organ function as defined as:
* Hematologic:
* Absolute neutrophil count (ANC) ≥ 1000/mm3
* Platelet count ≥ 75,000/mm3
* Hemoglobin ≥ 8 g/dL
* Hepatic:
* Bilirubin ≤1.5 x upper limit of normal (ULN) or ≤3 x ULN with document liver involvement and/ or Gilbert's disease
* Transaminases (AST or ALT) ≤ 3 x ULN or ≤ 5 x ULN with documented liver involvement
* Renal:
* Estimated creatinine clearance ≥ 60 mL/min by Cockcroft-Gault formula.
* For female subjects: Negative pregnancy test or evidence of post-menopausal status. The post-menopausal status will be defined as having been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply:
* Women \< 50 years of age:
* Amenorrheic for ≥ 12 months following cessation of exogenous hormonal treatments; and
* Luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution; or
* Underwent surgical sterilization (bilateral oophorectomy or hysterectomy).
* Women ≥ 50 years of age:
* Amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments; or
* Had radiation-induced menopause with last menses \>1 year ago; or
* Had chemotherapy-induced menopause with last menses \>1 year ago; or
* Underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy, or hysterectomy).
* Female subjects of childbearing potential and male subjects with a sexual partner of childbearing potential must agree to use a highly effective method of contraception and the lactation requirements as described in Sections 5.41.1 and 5.4.2.
* Subjects or their legal representatives must be able to read, understand, and provide informed consent to participate in the trial.
* Willing and capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in the protocol

* Previous treatment with any anti-CD19 therapy including lonca or prior CD19 CAR T-cell therapy
* Subjects receiving investigational CAR-T products
* Major surgery within 4 weeks prior to starting study therapy.
* History of bleeding diathesis (e.g., von Willebrand's disease), hemophilia, or active bleeding.
* Subjects with chronic liver disease with hepatic impairment Child-Pugh class C
* Pregnant or lactating or intending to become pregnant during the study
* Active graft-versus-host disease
* Post-transplantation lymphoproliferative disorders
* Active autoimmune disease which, in the opinion of the investigator, may negatively impact subject safety or interfere with study participation.
* The diagnosis of another malignancy which, in the opinion of the investigator, is likely to negatively impact subject safety or interfere with study participation.
* Subjects with known CNS involvement.
* Significant medical diseases or conditions including those requiring substantial changes in concomitant medications, as assessed by the investigator, that would substantially increase the risk-to-benefit ratio of participating in the study. This includes, but is not limited to the following conditions:
* Cardiovascular disorders:
* Congestive heart failure New York Heart Association Class III or IV, unstable angina pectoris, serious cardiac arrhythmias.
* Myocardial infarction (MI) within 6 months before the first dose.
* QTc prolongation defined as a QTcF \> 480 ms.
* Congenital long QT syndrome or a corrected QT measure (QTc) interval of \>480 ms at screening (unless secondary to pacemaker or bundle branch block).
* Severe pulmonary disease
* Uncontrolled diabetes mellitus
* Severely immunocompromised state
* Any other condition that would, in the Investigator's judgment, contraindicate the subject's participation in the clinical study due to safety concerns or compliance with clinical study procedures.
* Active systemic bacterial, viral, fungal, or other infection requiring systemic treatment at time of screening
* HIV infection.
* Subjects with evidence of active hepatitis B infection, based on positive surface antigen or Hepatitis B DNA PCR are excluded. Subjects who are Hepatitis B core antibody positive must take prophylaxis with entecavir or equivalent and be willing to undergo monthly Hepatitis B DNA PCR testing. Subjects with active Hep C patients may be enrolled if other parameters precluding hepatic impairment are met and they are not undergoing active therapy for hepatitis C.
* Known prior severe hypersensitivity to a CD19 antibody, lonca (including SG3249) or any of its excipients, or history of positive serum human ADA to a CD19 antibody.
* Subjects taking prohibited medications as described in Section 6.8.1. A washout period of prohibited medications for a period of at least five half-lives or as clinically indicated should occur before the start of treatment.

Contacts and Locations

Study Contact

Catherine Cromar

CONTACT

801-213-5652

catherine.cromar@hci.utah.edu

Narendranath Epperla

CONTACT

801-585-0255

naren.epperla@hci.utah.edu

Study Locations (Sites)

Huntsman Cancer Institute at University of Utah

Salt Lake City, Utah, 84112

United States

Collaborators and Investigators

Sponsor: University of Utah

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-07-01

Study Completion Date2030-03

Study Record Updates

Study Start Date2025-07-01

Study Completion Date2030-03

Terms related to this study

Additional Relevant MeSH Terms

Relapsed or Refractory Large B-cell Lymphoma