Study Stopped
A business decision was made by Pfizer to terminate the study. Termination was not due to any safety concerns, requests from regulatory authorities, changes to the benefit/risk profile or any new concerns regarding the investigational product.
A Clinical Trial to Learn About the Study Medicine Called Maplirpacept (PF-07901801), Alone and When Used in Combination With Other Medicines to Treat Participants With Advanced Hematological Malignancies, Including Lymphoma, Leukemia and Multiple Myeloma
A Phase 1a/1b Dose-Escalation and Expansion Trial of TTI-622 in Patients With Advanced Hematologic Malignancies, Including Lymphoma, Leukemia, and Multiple Myeloma
2 other identifiers
interventional
189
1 country
62
Brief Summary
The purpose of this clinical trial is to learn how the experimental medicine maplirpacept (PF-07901801) affects people with various types of blood cancers:
- relapsed or refractory (R/R) lymphoma
- multiple myeloma
- newly diagnosed acute myeloid leukemia (AML). This trial will be conducted in the outpatient setting in 2 parts, phase 1a and phase 1b. You may only participate in one part of the study. During phase 1a of this study, we will explore how much maplirpacept (PF-07901801), when used by itself, can be safely used. If you have lymphoma, the study medicine maplirpacept (PF-07901801) will be given by infusion through a vein once a week or once every 2 weeks or every 3 weeks as determined by your doctor. Following your first dose, you will be expected to come back twice more the first week. From week 2, you will have weekly visits for blood tests, questions about your medications, any side effects, or illnesses you may have experienced and your cancer response. After you have completed 21 days (for every week dosing) or 42 days (for every 2- or 3-weeks dosing), your doctor will discuss whether you should stop study treatment or continue. If you continue, you will be expected to come back weekly for blood tests, vital signs, a brief physical exam, asked about any side effects or illnesses you may have experienced and medications you may be taking. The dosing schedule you are assigned to will continue until your disease has worsened, significant side effects occur or other reasons that lead you and your doctor to decide treatment may be stopped. To be eligible for the first part of the study you must be 18 years or older, your disease has worsened after receiving other medicines approved for blood cancer, no other treatment options exist for you, a sample of your tissue for exploratory research which can be taken from tissue already obtained or if necessary, a new sample of your tissue will be taken so your disease may be seen and measured on routine tests/scans. If you have had radiation therapy or received any anticancer medication within 14 days before the planned start of study treatment your doctor will let you know if you are eligible to participate in the study. If you have had major surgery within 30 days before the planned start of study treatment you may not be eligible to participate. The phase 1a part of the study may last up to 51/2 years. How long you participate in this study depends on side effects you may have to the study drug. It also depends on how your cancer responds to the study drug. Therefore, you may remain in the study as long as you and your study doctor think you may benefit. However, you are free to stop taking part in this study at any time and for any reason. During phase 1b part of this study, we will explore how much maplirpacept (PF-07901801), when used with other anticancer medicine(s), can be safe and reduce cancer growth. In the phase 1b part of this study, you will receive maplirpacept (PF-07901801) and other anticancer medicine(s). Which medicine combination you will receive depends on the types of cancer under treatment. Your treatment experiences will be examined to determine if maplirpacept (PF-07901801) when given with other anticancer medicine(s), is safe and can reduce cancer growth. To be eligible for the second part of the study you may have newly diagnosed Acute Myelocytic Leukemia with or without a genetic mutation or you have Multiple Myeloma or Diffuse Large B Cell Lymphoma, and your disease has worsened. The Phase 1b part of this study may last as long as you and your study doctor think you may benefit which could be up to approximately 31/2 years. How long you participate in this study depends on side effects you may have to the study drug. It also depends on how your cancer responds to the study drug. Therefore, you may remain in the study as long as you and your study doctor think you may benefit. However, you are free to stop taking part in this study at any time and for any reason.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1 lymphoma
Started May 2018
Typical duration for phase_1 lymphoma
62 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 8, 2018
CompletedStudy Start
First participant enrolled
May 14, 2018
CompletedFirst Posted
Study publicly available on registry
May 21, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 18, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
July 18, 2024
CompletedSeptember 3, 2024
August 1, 2024
6.2 years
May 8, 2018
August 29, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (10)
Phase 1a: Number of adverse events (AE) by severity
To characterize the safety profile (incidence of AEs)
Through study completion, up to 18 months
Phase 1a: Number of AEs by Frequency
To characterize the safety profile (incidence of AEs) and
Through study completion, up to 18 months
Phase 1a: Number of participants with Dose-Limiting Toxicities (DLT)
To characterize the dose limiting toxicities (DLTs) of TTI-622.
Up to 21-42 days
Phase 1b: Number of adverse events (AE) by severity
To characterize the safety profile (incidence of AEs) of TTI-622 given in combinations or as a single agent.
Through study completion, up to 30 months
Phase 1b: Number of adverse events (AE) by frequency
To characterize the safety profile (incidence of AEs) of TTI-622 given in combination or as a single agent.
Through study completion, up to 30 months
Phase 1b: Number of participants with disease response
To evaluate response rate of each combination treatment in the (7) combination cohorts (A1,A2, B1, B2, C1, C2, C3, D1, D2, F1, F2, F3) and for single agent treatment (Cohort E1 and E2). For AML, response = CR. For MM, response = CR+sCR+VGBR+PR. For DLBCL, OR=CR+PR
Through study completion, up to 30 months
Phase 1a: Maximum Tolerated Dose (MTD)
To characterize the highest dose level for which no more than 1 participant in a dose cohort experienced DLTs.
Baseline (the start of each sequentially increased treatment dose), up to the 3rd evaluable patient completes DLT observation period of 21 or 42 days.
Phase 1b: Recommended dose of TTI-622 in combination with selected anticancer treatments
To characterize the recommended dose of TTI-622 in combination with selected anticancer treatments in 5 patient populations: * TTI-622 plus azacitidine in newly diagnosed TP53-mutated AML * TTI-622 plus azacitidine and venetoclax in elderly (\>/= 75 years old) or unfit, newly diagnosed TP53-wildtype AML * TTI-622 plus Carfilzomib and dexamethasone in Carfilzomib-refractory, Relapsed/Refractory (R/R) multiple myeloma (MM) after 3 or more prior lines of therapy * TTI-622 plus an anti-CD20 targeting agent (such as ruxience or rituxan) in R/R CD20+ DLBCL after 1 or more prior lines of therapy * TTI-622 plus isatuximab, carfilzomib and dexamethasone in R/R MM after 1-3 prior lines of therapy
Through study completion, up to 30 months
Phase 1b: Recommended dose of TTI-622 as a single agent
To characterize the recommended dose of TTI-622 as a single agent in patients with R/R MM after 3 or more prior lines of therapy.
Through study completion, up to 30 months
Number of participants with response assessments that show preliminary efficacy
To evaluate preliminary efficacy of each combination treatment in the selected patient populations and for single-agent treatment in R/R MM
Through study completion, up to 30 months
Secondary Outcomes (16)
Phase 1a: TTI-622 PK parameter AUC0-t
Through study completion, up to 18 months
Phase 1a: TTI-622 PK parameter Cmax
Through study completion, up to 18 months
Phase 1a: Incidence of anti-drug antibodies (ADA)
Through study completion, up to 18 months
Phase 1a: Number of participants with overall response rate (ORR) for participants treated with TTI-622.
Through study completion, up to 18 months
Phase 1a: Number of participants with disease control rate (DCR)
Through study completion, up to 18 months
- +11 more secondary outcomes
Study Arms (7)
maplirpacept (PF-07901801) Monotherapy
EXPERIMENTALIn the phase 1a dose- escalation part for single-agent maplirpacept (PF-07901801), participants with Relapsing or Refractory (R/R) lymphoma will be enrolled in sequential dose cohorts to receive maplirpacept (PF-07901801) QW to characterize safety, tolerability, and PK; to determine the Maximum Tolerated Dose (MTD) or P1b Starting Dose (a dose lower than or equal to the single-agent MTD), and to gain preliminary evidence of antitumor activity. In addition, participants with R/R Lymphoma may also be enrolled in a cohort to receive maplirpacept (PF-07901801) Q2W and a cohort to receive maplirpacept (PF-07901801) Q3W to characterize safety, tolerability, and PK; to determine the MTD; and to gain preliminary evidence of antitumor activity.
Cohort A: maplirpacept (PF-07901801) + Azacitidine
EXPERIMENTALCohort A1: participants with newly diagnosed TP53-mutated Acute Myelocytic Leukemia (AML) will be treated with maplirpacept (PF-07901801) QW + azacitidine. Cohort A2: participants with newly diagnosed TP53-mutated AML will be treated with maplirpacept (PF-07901801) QW + azacitidine.
Cohort B: maplirpacept (PF-07901801) + Azacitidine and Venetoclax
EXPERIMENTALCohort B1: elderly or unfit participants with newly diagnosed TP53-wildtype AML will be treated with maplirpacept (PF-07901801) QW + azacitidine and venetoclax Cohort B2: elderly or unfit participants with newly diagnosed TP53-wildtype AML will be treated with maplirpacept (PF-07901801) QW + azacitidine and venetoclax.
Cohort D1 and D2: maplirpacept (PF-07901801) + an anti-CD20 targeting agent
EXPERIMENTALCohort D1: participants with Relapsing or Recurrent (R/R) CD20+ Diffuse Large B Cell Lymphoma (DLBCL) will be treated with maplirpacept (PF-07901801) QW, then an increased dose Q3W + an anti-CD20 targeting agent. Cohort D2: participants with R/R CD20+ DLBCL will be treated with maplirpacept (PF-07901801) dosed QW for 4 weeks, then an increased dose Q3W + an anti-CD20 targeting agent.
Cohort E1 and E2: single agent maplirpacept (PF-07901801)
EXPERIMENTALCohort E1: participants with Relapsing or Recurrent (R/R) Multiple Myeloma (MM) will be treated with single agent maplirpacept (PF-07901801) QW. Cohort E2: participants with R/R MM will be treated with single agent maplirpacept (PF-07901801) increased dose QW.
Cohort F1, F2 and F3: maplirpacept (PF-07901801) + isatuximab, carfilzomib and dexamethasone
EXPERIMENTALCohort F1: participants with Relapsing or Recurrent (R/R) Multiple Myeloma (MM) will be treated with increasing doses of maplirpacept (PF-07901801) + isatuximab, carfilzomib and dexamethasone. Cohort F2: participants with R/R MM will be treated with maplirpacept (PF-07901801) QW + isatuximab, carfilzomib and dexamethasone. Cohort F3: participants with R/R MM will be treated with maplirpacept (PF-07901801) increased dose QW + isatuximab, carfilzomib and dexamethasone.
Cohort C1, C2 and C3: maplirpacept (PF-07901801) + Carfilzomib and Dexamethasone
EXPERIMENTALCohort C1: participants with Relapsing or Refractory (R/R) Multiple Myeloma (MM) will be treated with maplirpacept (PF-07901801) QW \+ carfilzomib and dexamethasone. Cohort C2: participants with R/R MM will be treated with maplirpacept (PF-07901801) QW + carfilzomib and dexamethasone. Cohort C3: participants with R/R MM will be treated with maplirpacept (PF-07901801) Q2W + carfilzomib and dexamethasone.
Interventions
maplirpacept (PF-07901801) will be administered by intravenous infusion at ranging doses, as determined from sequential dosing cohorts.
intravenous (IV) or subcutaneous (SC) daily for 7 days, repeated every 4 weeks
orally daily for each day of each cycle (first 7 doses taken in clinic). The ramp-up and target dose of venetoclax will be adjusted per the package insert in subjects who are taking concomitant moderate or strong CYP3A4 inhibitors or posaconazole
Days 1, 8, and 15 of 28-day cycles; starting dose IV given on Cycle (C) 1 Day (D) 1, and if tolerated, then increased dose via IV given starting on C1D8 and subsequent doses thereafter.
starting dose via IV on Days 1, 8, 15, and increased dose via IV on 28-day cycles
Days 1,8,15, and 22 of the first 28-day cycle and then on Day 1 of subsequent 21-day cycles. The anti-CD20 targeting agent will be administered for a total of eight doses, and then Cohort F1, F2 and F3: TTI-622 + isatuximab, carfilzomib and dexamethasone Cohort C1, C2 and C3: TTI-622 + Carfilzomib and Dexamethasone will be continued as single-agent therapy.
F1: IV dose C0D1, C0D8, C0D15 and C0D22 (lead in phase);weekly during Cycle 1; Cycle 2 and beyond will be administered on Days 1 and 15 (Q2W). F2 and F3: IV dose C0D1 and C0D8 (lead in phase); C1D1, C1D8, C1D15 and C1D22; Cycle 2 and beyond will be administered on days 1 and 15 (Q2W). Carfilzomib: IV dose on days 1 and 2 of cycle 1; then increased IV dose on days 8, 9, 15, and 16 of cycle 1; cycle 2 and beyond: increased IV dose on days 1, 2, 8, 9, 15, and 16. Dexamethasone IV or PO on days 1, 2, 8, 9, 15, 16, 22, and 23 starting cycle 1.
Eligibility Criteria
You may qualify if:
- Available fresh or archived tumor tissue.
- Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2.
- Adequate coagulation function.
- Adequate hepatic function.
- Adequate hematologic status.
- Adequate renal function.
- Recovery from non-hematopoietic toxicities of previous anticancer drugs or radiotherapy or previous surgeries to ≤Grade 1 (or to baseline grade if condition was pre-existing).
You may not qualify if:
- Known, current central nervous system disease involvement.
- Use of any investigational agent or any anticancer drug within 14 days before planned start of study treatment (within 4 weeks for antibody-based therapies and within 8 weeks for cell-based therapies).
- Subjects who have undergone radiation therapy within 14 days of study treatment administration.
- Hematopoietic stem cell transplant within 90 days before the planned start of study treatment or subjects with active graft-vs-host disease, with the exception of Grade 1 skin involvement.
- Major surgery within 30 days before planned start of study treatment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Pfizerlead
Study Sites (62)
Keck Hospital of USC
Los Angeles, California, 90033, United States
LAC+USC Medical Center
Los Angeles, California, 90033, United States
USC/Norris Comprehensive Cancer Center
Los Angeles, California, 90033, United States
Keck Hospital of USC Pasadena
Pasadena, California, 91105, United States
Colorado Blood Cancer Institute
Denver, Colorado, 80218, United States
HealthONE Presbyterian/St. Luke's Medical Center
Denver, Colorado, 80218, United States
Christiana Care Health Services
Newark, Delaware, 19713, United States
Christiana Care Hematology Oncology - Helen F Graham Cancer Center
Newark, Delaware, 19713, United States
Medical Oncology Hematology Consultants, PA, Helen F. Graham Cancer Center
Newark, Delaware, 19713, United States
Christiana Care Health Services - Christiana Hospital
Newark, Delaware, 19718, United States
Georgetown University Medical Center
Washington D.C., District of Columbia, 20007, United States
Tampa General Hospital Cancer Institute
Tampa, Florida, 33606, United States
Tampa General Hospital
Tampa, Florida, 33606, United States
Blood and Marrow Transplant Group of Georgia
Atlanta, Georgia, 30342, United States
Northside Hospital
Atlanta, Georgia, 30342, United States
Indiana Blood & Marrow Transplantation
Indianapolis, Indiana, 46237, United States
Indiana Blood and Marrow Transplantation-Administrative Offices
Indianapolis, Indiana, 46237, United States
Indiana Blood and Marrow Transplantation-Clinic
Indianapolis, Indiana, 46237, United States
Norton Cancer Institute, St Matthews Campus
Louisville, Kentucky, 40207, United States
Norton Cancer Institute, St. Matthews Campus, Attn. Becky Champion, PharmD
Louisville, Kentucky, 40207, United States
Norton Diagnostic Center-Dupont (PET Scans)
Louisville, Kentucky, 40207, United States
Norton Women & Children's Hospital
Louisville, Kentucky, 40207, United States
University of Michigan Hospitals
Ann Arbor, Michigan, 48109, United States
University of Michigan
Ann Arbor, Michigan, 48109, United States
Barbara Ann Karmanos Cancer Institute
Detroit, Michigan, 48201, United States
Karmanos Cancer Institute Weisberg Cancer Treatment Center
Farmington Hills, Michigan, 48334, United States
Memorial Sloan Kettering Cancer Center at Basking Ridge
Basking Ridge, New Jersey, 07920, United States
Summit Medical Group Cancer Center
Florham Park, New Jersey, 07932, United States
Memorial Sloan Kettering Cancer Center at Monmouth
Middletown, New Jersey, 07748, United States
Memorial Sloan Kettering Bergen
Montvale, New Jersey, 07645, United States
Memorial Sloan Kettering Cancer Center at Montvale
Montvale, New Jersey, 07645, United States
Roswell Park Cancer Institute
Buffalo, New York, 14263, United States
Memorial Sloan Kettering Cancer Center at Commack
Commack, New York, 11725, United States
Memorial Sloan Kettering Cancer Center at Westchester
Harrison, New York, 10604, United States
Memorial Sloan Kettering Cancer Center - Investigational Drug Service Pharmacy
Long Island City, New York, 11101, United States
Memorial Sloan Kettering Cancer Center - David H. Koch Center
New York, New York, 10021, United States
Memorial Sloan Kettering Cancer Center (Outpatient Center)
New York, New York, 10065, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10065, United States
Montefiore Medical Center
The Bronx, New York, 10467, United States
Memorial Sloan Kettering Cancer Center at Nassau
Uniondale, New York, 11553, United States
Novant Health Cancer Institute - Research Office
Charlotte, North Carolina, 28204, United States
Novant Health Cancer Institute Hematology - Charlotte
Charlotte, North Carolina, 28204, United States
Novant Health Presbyterian Medical Center
Charlotte, North Carolina, 28204, United States
Novant Health Cancer Institute - Research Office
Winston-Salem, North Carolina, 27103, United States
Novant Health Cancer Institute Hematology - Forsyth
Winston-Salem, North Carolina, 27103, United States
Novant Health Forsyth Medical Center
Winston-Salem, North Carolina, 27103, United States
Gabrail Cancer Center Research
Canton, Ohio, 44718, United States
Sidney Kimmel Cancer Center, Clinical Trials Organization
Philadelphia, Pennsylvania, 19107, United States
Sidney Kimmel Cancer Center, Research Support Services
Philadelphia, Pennsylvania, 19107, United States
Thomas Jefferson University - Clinical Research Institute
Philadelphia, Pennsylvania, 19107, United States
Thomas Jefferson University Investigational Drug Services
Philadelphia, Pennsylvania, 19107, United States
Thomas Jefferson University, Investigational Drug Service
Philadelphia, Pennsylvania, 19107, United States
Thomas Jefferson University, Medical Oncology
Philadelphia, Pennsylvania, 19107, United States
Thomas Jefferson University
Philadelphia, Pennsylvania, 19107, United States
West Penn Hospital
Pittsburgh, Pennsylvania, 15224, United States
Prisma Health, Institute for Translational Oncology Research, Clinical Research Unit
Greenville, South Carolina, 29605, United States
Prisma Health-Upstate Cancer Institute
Greenville, South Carolina, 29605, United States
University of TN Medical Center
Knoxville, Tennessee, 37920, United States
Oncology Consultants P.A.
Houston, Texas, 77030, United States
The University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
Swedish Cancer Institute
Seattle, Washington, 98104, United States
Swedish Medical Center
Seattle, Washington, 98122, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Pfizer CT.gov Call Center
Pfizer
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 8, 2018
First Posted
May 21, 2018
Study Start
May 14, 2018
Primary Completion
July 18, 2024
Study Completion
July 18, 2024
Last Updated
September 3, 2024
Record last verified: 2024-08
Data Sharing
- IPD Sharing
- Will not share
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.