Phase 1 Trial of BTM-3566 in Relapsed/Refractory Mature B Cell Lymphomas

Inclusion Criteria: * must be age ≥18 years * must have a diagnosis of relapsed or refractory mature B cell lymphoma * must have measurable disease per response evaluation criteria in lymphoma (Lugano classification) * must have an Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-2 * must have a predicted life expectancy of ≥3 months * must agree to use adequate birth control throughout their participation and for 90 days following the last dose of BTM-3566 Exclusion Criteria: * has primary CNS lymphoma * has ongoing toxicities from prior anti-cancer treatment \> Grade 1 * has symptomatic or uncontrolled neurologic disease (brain metastases, leptomeningeal disease, or spinal cord compression) not definitively treated with surgery or radiation * has received any anti-cancer therapy (including radiation of curative intent) \<28 days prior to administration of BTM-3566 * has current second malignancy at other sites (exceptions: non-melanomatous skin cancer, adequately treated in situ carcinoma, or indolent prostate cancer under observation). * is pregnant or breastfeeding