Venetoclax With Obinutuzumab and Magrolimab (VENOM) in Relapsed and Refractory Indolent B-cell Malignancies
- Conditions
- Mantle Cell LymphomaB-Cell LymphomaMarginal Zone LymphomaChronic Lymphocytic LymphomaFollicular Lymphoma
- Interventions
- Drug: Prednisone/prednisoloneDiagnostic Test: CT Scan chest/abdomen/pelvisDiagnostic Test: MRIDiagnostic Test: 18-FDG-PETProcedure: Bone Marrow BiopsyProcedure: Bone Marrow Aspiration
- Registration Number
- NCT04599634
- Lead Sponsor
- National Cancer Institute (NCI)
- Brief Summary
Background:
B-cell lymphoma is a cancer of certain white blood cells (called lymphocytes). These cells are found in lymph nodes. The cancer can cause enlargement of the lymph nodes leading to pain and discomfort. Swollen lymph nodes can also press on nearby organs such as liver and kidneys which can affect normal functioning of the organs. Researchers think that a new combination of drugs may be able to help.
Objective:
To find out if it is safe to give the combination of Magrolimab, Obinutuzumab and Venetoclax to people with B-cell lymphomas.
Eligibility:
Adults age 18 and older with an indolent B-cell lymphoma whose disease has returned or progressed after other treatment. Indolent B-cell lymphoma for this protocol is defined as having either follicular lymphoma, mantle cell lymphoma, chronic lymphocytic leukemia/small lymphocytic lymphoma or marginal zone lymphoma.
Design:
Participants will be screened under a separate protocol.
Participants will have 28-day 'cycles' of treatment. They will take Venetoclax by mouth daily. They will get Obinutuzumab and Magrolimab by intravenous (IV) infusion. Treatment will last for about 8 months. They may be able to have more cycles of treatment if their cancer is responding well.
Participants will have physical exams, medical histories, and medicine reviews. Data about how they function in their daily activities will be obtained. They will have blood and urine tests. They may have bone marrow tests.
Participants will have imaging scans. These will include computed tomography (CT) and/or magnetic resonance imaging (MRI) scans and positron emission tomography (PET) scans.
Participants may give a cheek swab or saliva sample. They may give tumor tissue and bone marrow samples. These samples may be used for gene testing.
Participants will have a follow-up visit about 30 days after treatment ends. Then they will have visits every 3 months for the first 2 years, every 6 months for the next 3 years, and then yearly after that.
- Detailed Description
Background:
* Indolent B-cell malignancies are associated with frequent disease relapse
* Standard frontline therapy includes a monoclonal anti-cluster of differentiation 20 (CD20) antibody with or without chemotherapy; novel targeted therapies have changed the treatment landscape and are preferred therapy for some patients with high-risk molecular features
* Targeted therapies given indefinitely add to drug resistance, treatment-emergent toxicities, and non-compliance
* Cluster of differentiation 47 (CD47) is a rational target for indolent B-cell malignancies; CD47 expression is higher in tumor cells than normal B-cells, and blocking CD47 results in phagocytosis of tumor cells
* Magrolimab is an anti-CD47 monoclonal antibody with activity in refractory indolent lymphomas when combined with rituximab (a first generation anti-CD20 monoclonal antibody)
* Obinutuzumab is a novel anti-CD20 monoclonal antibody with enhanced binding to the Fc receptor that may improve antibody-dependent cell-mediated cytotoxicity (ADCC), and phagocytosis, when combined with magrolimab
* We aim to test the safety and efficacy of venetoclax when added to the backbone of magrolimab and obinutuzumab in patients with relapsed or refractory indolent B-cell malignancies
* Treatment duration will be response-adapted and time-limited in all patients
Objective:
-To determine the safety of the triplet combination of venetoclax, magrolimab and obinutuzumab in relapsed and refractory indolent B-cell malignancies
Eligibility:
* Follicular lymphoma (FL) (grades 1-2, or 3a), marginal zone lymphoma (MZL), mantle cell lymphoma (MCL) or chronic lymphocytic leukemia (CLL) with greater than or equal to 2 prior therapies, with at least one of those therapies containing an anti-CD20 monoclonal antibody
* Eastern Cooperative Oncology Group (ECOG) performance status 0-2
* Adequate bone marrow and organ function
Design:
* Phase 1 study with expansion cohorts of up to 76 patients with relapsed or refractory FL, MZL, MCL or CLL
* The safety profile of magrolimab, venetoclax, and obinutuzumab will first be determined in a dose-finding phase of up to 24 patients (6-12 patients with FL and 6-12 patients with MZL, MCL or CLL). Patients without dose-limiting toxicity (DLT) will receive an additional 5 cycles (total 6 cycles) of the triplet combination.
* After dose-finding is completed, expansion cohorts of each histology will first receive magrolimab and obinutuzumab for 2 cycles in a window for translational research. After the window, venetoclax will be added and patients will receive 6 cycles (total 8 cycles) of the triplet combination.
* Patients who achieve a complete response (CR) (after a total of 6 cycles of the triplet combination) will stop treatment and initiate active monitoring with radiologic imaging and assays for circulating tumor DNA (ctDNA); if these patients relapse, they can be retreated with 6 additional cycles. Patients who achieve partial response (PR) after 6 cycles of the triplet will continue for an additional 6 cycles; then, will initiate active monitoring.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 11
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SEQUENTIAL
- Arm && Interventions
Group Intervention Description Experimental treatment: FL Dose-finding Venetoclax Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Magrolimab Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Acetaminophen Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Diphenhydramine Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Prednisone/prednisolone Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Methylprednisolone Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding CT Scan chest/abdomen/pelvis Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding MRI Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding 18-FDG-PET Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Bone Marrow Biopsy Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: FL Dose-finding Bone Marrow Aspiration Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Obinutuzumab Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Venetoclax Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Magrolimab Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Acetaminophen Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Diphenhydramine Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Prednisone/prednisolone Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Methylprednisolone Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding CT Scan chest/abdomen/pelvis Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding MRI Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding 18-FDG-PET Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Bone Marrow Biopsy Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: MZL, MCL, and CLL Dose-finding Bone Marrow Aspiration Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax ramp-up to target dose of 400mg over 5 weeks (35 days, Cycle 1) administered to 6 patients. Triplet combination of magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for five (5) additional cycles (28-days each, Cycles 2-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 200mg with magrolimab and obinutuzumab. Experimental treatment: mzl, MCL, CLL dose expansion Obinutuzumab Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Venetoclax Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Magrolimab Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Acetaminophen Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Diphenhydramine Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Prednisone/prednisolone Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Methylprednisolone Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion CT Scan chest/abdomen/pelvis Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion MRI Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion 18-FDG-PET Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Bone Marrow Biopsy Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: mzl, MCL, CLL dose expansion Bone Marrow Aspiration Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-day cycles, Cycles -2 and -1), then venetoclax safety ramp-up to target dose (dose determined from Arm 2) over 5 weeks (35-days, Cycle 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax (target dose, no ramp-up) will continue for 5 additional cycles (28-days each, Cycles 2-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Obinutuzumab Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Venetoclax Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Magrolimab Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Acetaminophen Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Diphenhydramine Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Prednisone/prednisolone Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Methylprednisolone Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion CT Scan chest/abdomen/pelvis Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion MRI Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion 18-FDG-PET Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Bone Marrow Biopsy Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL dose expansion Bone Marrow Aspiration Window of magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg combination for two (2) cycles (28-days each, Cycles -2 and -1), then venetoclax will be added at target dose (dose determined from Arm 1). Triplet combination treatment with magrolimab + obinutuzumab + venetoclax will be 6 cycles (28-days each, Cycles 1-6); further treatment will be response-adapted. Experimental treatment: FL Dose-finding Obinutuzumab Magrolimab intravenous (IV) with a 1 mg/kg priming dose followed by 30mg/kg loading and maintenance doses + obinutuzumab IV 1000mg + venetoclax 800mg by mouth (PO) combination administered to 6 patients for six (6) cycles (28-days each, Cycles 1-6); further treatment with additional cycles will be response-adapted. Note: Dose-limiting toxicity (DLT) assessment of the magrolimab + obinutuzumab + venetoclax triplet will take place during Cycle 1. If =2 patients experience DLT, an additional 6 patients will be enrolled at Dose level (DL (-1) of venetoclax 600mg with magrolimab and obinutuzumab.
- Primary Outcome Measures
Name Time Method Number of Grades 3, 4, and/or 5 Dose-limiting Toxicities (DLT) Probably and/or Definitely Related to Triplet Combination Therapy 4 weeks for Arm 1 and 5 weeks for Arm 2 Incidence of dose limiting toxicities (i.e., grade and frequency) to determine safety and tolerability were measured by the Common Terminology Criteria for Adverse Events (CTCAE v5.0). Grade is 3 is severe. Grade 4 is life threatening, and Grade 5 is death related to adverse event. A DLT is defined as any grade 3 or higher adverse event that is clinically relevant and deemed probably or definitely related to any of the study drugs or to the combination therapy and occurs during the venetoclax dose-finding period. Exceptions are non-hematologic grade 3 nausea, vomiting or diarrhea. Grade 3 fatigue, electrolyte disturbances, magrolimab or obinutuzumab infusion reactions, and/or grade 3 laboratory abnormalities. Hematologic grade 3 neutropenia, thrombocytopenia, anemia and hemolytic anemia. And/or grade 3 or 4 lymphopenia.
- Secondary Outcome Measures
Name Time Method Overall Response Rate (ORR) (Complete Response + Partial Response) From the start of the treatment until disease progression/recurrence, median follow-up of 17.4 months ORR was determined and reported from individual cohorts and histological diagnosis. ORR was measured by the Lugano response criteria for Follicular Lymphoma, Mantle Cell Lymphoma and Marginal Zone Lymphoma; and the International Workshop on Chronic Lymphocytic Leukemia criteria for Chronic Lymphocytic Leukemia. Complete response is complete resolution of the lesion on imaging. Partial response is 50% or greater reduction in the maximum diameter of the lesion from its original tumor size on imaging. Disease progression is an increase of 50% or more in size of a previously involved site measuring ≥1.5 cm.
Duration of Response (DOR) From the start of the treatment until time of disease relapse, disease progression, or death, whichever occurs first, an average of 10.9 months. DOR was estimated using Kaplan-Meier curves and reported along with a 95% confidence interval. DOR was measured from the time measurement criteria are met for complete response (CR) or partial response (PR) (whichever is first recorded) until the first date that recurrent or progressive disease is objectively documented, death, or, in the absence of progressive disease (PD), date of last assessment. DOR was measured by the Lugano response criteria for Follicular Lymphoma, Mantle Cell Lymphoma and Marginal Zone Lymphoma; and the International Workshop on Chronic Lymphocytic Leukemia criteria for Chronic Lymphocytic Leukemia. Complete response is complete resolution of the lesion on imaging. Partial response is 50% or greater reduction in the maximum diameter of the lesion from its original tumor size on imaging. Disease progression is an increase of 50% or more in size of a previously involved site measuring ≥1.5 cm.
Event-free Survival (EFS) From the start of the treatment until time of disease relapse, disease progression, alternative anti-lymphoma therapy including radiation, or death, whichever occurs first, up to 20 months EFS was estimated using Kaplan-Meier curves and reported along with a 95% confidence interval. EFS is defined as the duration of time from the date of study enrollment until time of disease relapse, disease progression, alternative anti-lymphoma therapy including radiation, or death, whichever occurs first, measured by the Lugano response criteria for Follicular Lymphoma, Mantle Cell Lymphoma and Marginal Zone Lymphoma; and the International Workshop on Chronic Lymphocytic Leukemia criteria for Chronic Lymphocytic Leukemia. Disease progression is an increase of 50% or more in size of a previously involved site measuring ≥1.5 cm.
Progression-free Survival From the start of the treatment until time of disease relapse, disease progression, or death, whichever occurs first, an average of 13.9 months. PFS was estimated using Kaplan-Meier curves and reported along with a 95% confidence interval. PFS is defined as the duration of time from the date of study enrollment until time of disease relapse, disease progression, or death, whichever occurs first. PFS was measured by the Lugano response criteria for Follicular Lymphoma, Mantle Cell Lymphoma and Marginal Zone Lymphoma; and the International Workshop on Chronic Lymphocytic Leukemia criteria for Chronic Lymphocytic Leukemia. Disease progression is an increase of 50% or more in size of a previously involved site measuring ≥1.5 cm.
Overall Survival (OS) From the start of the treatment until death from any cause, an average of 15.6 months. OS was estimated using Kaplan-Meier curves and reported along with a 95% confidence interval. OS is defined as the time from study enrollment until death from any cause.
Percentage of Participants With Chronic Lymphocytic Leukemia (CLL) With Complete Molecular Remission (MRD Negativity) From the start of the treatment until disease progression/recurrence, an average of 3.3 months. The percentage of participants who are MRD negative was determined by circulating tumor deoxyribonucleic acid (ctDNA) assay after therapy. Negative is undetectable CLL cells on peripheral blood flow cytometry after end of treatment.
Trial Locations
- Locations (1)
National Institutes of Health Clinical Center
🇺🇸Bethesda, Maryland, United States