Title
A Study of PRT543 in Participants With Advanced Solid Tumors and Hematologic Malignancies
A Phase 1, Open-Label, Multicenter, Dose Escalation, Dose Expansion Study of PRT543 in Patients With Advanced Solid Tumors and Hematologic Malignancies
Phase
Phase 1Lead Sponsor
Prelude TherapeuticsStudy Type
InterventionalStatus
Completed No Results PostedIndication/Condition
Relapsed/Refractory Myelodysplasia Relapsed/Refractory Advanced Solid Tumors Relapsed/Refractory Diffuse Large B-cell Lymphoma Relapsed/Refractory Acute Myeloid Leukemia Refractory Chronic Myelomonocytic Leukemia Relapsed/Refractory Myelofibrosis Adenoid Cystic Carcinoma Relapsed/Refractory Mantle Cell LymphomaIntervention/Treatment
PRT543Study Participants
232This is a Phase 1 cohort, dose-escalation, dose-expansion study of PRT543 in patients with advanced cancers who have exhausted available treatment options. The purpose of this study is to define a safe dose and schedule to be used in subsequent development of PRT543.
This is a multicenter, open-label, sequential-cohort, dose-escalation, dose-expansion Phase 1 study of PRT543 in patients with advanced cancers who have exhausted available treatment options. Enrollment will take place concurrently into two distinct patient groups (one for solid tumors/lymphomas and one for hematological malignancies). The study will consist of 2 parts, a dose escalation part, and once the recommended phase 2 dose (RP2D) has been determined, a cohort expansion part involving up to ten separate cohorts. For patients, the study will include a screening phase, a treatment phase, and a post treatment follow-up phase. An end-of-study visit will be conducted within 30 days after the last dose of PRT543.
Inclusion Criteria: Metastatic or advanced solid tumor; or advanced diffuse large B-cell lymphoma; or advanced mantle cell lymphoma; or relapsed myelodysplastic syndrome, acute myeloid leukemia or chronic myelomonocytic leukemia; or relapsed myelofibrosis. All malignancies must be refractory to established therapies Biomarker-selected solid tumors Eastern Cooperative Oncology Group (ECOG) Performance Score of 0 or 1 Adequate organ function (bone marrow, hepatic, renal, cardiovascular) Female patients of childbearing potential must have a negative pregnancy test within 7 days of the start of treatment and must agree to use an effective method of contraception during the trial Exclusion Criteria: Primary malignancies of the Central Nervous System(CNS) or uncontrolled CNS metastases Requirement of pharmacologic doses of glucocorticoids Prior treatment with chimeric antigen receptor T cells (CAR-T cells) HIV positive; known active hepatitis B or C Known hypersensitivity to any of the components of PRT543 Prior allogeneic bone marrow transplant; autologous hematopoietic transplantation less than 100 days since transplantation