Chronic Lymphocytic Leukemia Clinical Trial
A Study of Zilovertamab Vedotin (MK-2140) as Monotherapy and in Combination in Participants With Aggressive and Indolent B-cell Malignancies (MK-2140-006)
The purpose of this study is to assess the safety and tolerability of zilovertamab vedotin as monotherapy and in combination with nemtabrutinib in participants with select B-cell lymphomas including mantle cell lymphoma (MCL), Richter's transformation lymphoma (RTL), follicular lymphoma (FL), and leukemia-cll/" >chronic lymphocytic leukemia (CLL). This study will also evaluate zilovertamab vedotin as monotherapy and in combination with nemtabrutinib with respect to objective response rate.
MCL: relapsed or refractory disease after at least 2 prior systemic therapies including a Bruton's tyrosine kinase inhibition/inhibitor (BTKi), and post therapy chimeric antigen receptor T (CAR-T) cell therapy or ineligible for CAR-T cell therapy
RT: relapsed or refractory disease after at least 1 prior systemic therapy
MCL: relapsed or refractory disease after at least 1 prior systemic therapy and no prior exposure to a non-covalent BTKi
FL and CLL: relapsed or refractory disease after at least 2 prior systemic therapies and have no other available therapy
The primary study hypothesis is that zilovertamab vedotin monotherapy has an increased Objective Response Rate (ORR) per Lugano Response Criteria as assessed by blinded independent central review (BICR).
The main inclusion criteria include, but are not limited to the following:
For aggressive B-cell malignancies MCL and RTL: Has histologically confirmed biopsy according to the 2016 World Health Organization (WHO) classification of neoplasms of the hematopoietic and lymphoid tissues and has relapsed or refractory disease.
For indolent B-cell malignancies FL and CLL: Has histologically confirmed biopsy and has relapsed or refractory disease after at least 2 prior systemic therapies and no other available therapy.
Participants who are hepatitis B surface antigen (HBsAg) positive are eligible if they have received hepatitis B virus (HBV) antiviral therapy for at least 4 weeks and have undetectable HBV viral load prior to randomization/allocation.
Have an ECOG performance status of 0 to 2 assessed within 7 days before cycle 1 day 1.
Has received solid organ transplant at any time.
Has clinically significant (ie, active) cardiovascular disease: cerebral vascular accident/stroke (<6 months prior to enrollment), myocardial infarction (<6 unstable angina congestive heart failure (New York Heart Association Classification Class ≥II), or serious cardiac arrhythmia requiring medication.
Has pericardial effusion or clinically significant pleural effusion.
Has ongoing Grade >1 peripheral neuropathy.
Has a demyelinating form of Charcot-Marie-Tooth disease.
Has a history of a second malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 2 years.
Participants with FL who have transformed to a more aggressive type of lymphoma.
Has received prior systemic anticancer therapy, including investigational agents, within 5 half-lives or 4 weeks (if prior therapy was a monoclonal antibodies) or 2 weeks (small molecules like kinase inhibitors) prior to the first dose of study intervention.
Has received prior radiotherapy within 28 days of start of study intervention. Participants must have recovered from all radiation-related toxicities.
Has ongoing corticosteroid therapy exceeding 30 mg daily of prednisone equivalent.
Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention.
Has known active central nervous system (CNS) lymphoma involvement or active CNS involvement by lymphoma.
Has an active infection requiring systemic therapy.
Has a known history of human immunodeficiency virus (HIV) infection.
Active HBV or hepatitis C virus (HCV) infection.
For MCL, has any clinically significant gastrointestinal abnormalities that might alter absorption.
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