Study to Evaluate Safety and Tolerability of XmAb13676 (Plamotamab) in Patients With CD20-expressing Hematologic Malignancies
A Phase 1 Multidose Study to Evaluate the Safety and Tolerability of XmAb13676 (Plamotamab) in Patients With CD20-Expressing Hematologic Malignancies
1 other identifier
interventional
154
4 countries
23
Brief Summary
The purpose of this study is to determine the safety and tolerability of intravenous (IV) and subcutaneous (SC) administration of XmAb13676 and to determine the maximally tolerated dose (MTD) and/or recommended dose (RD).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Oct 2016
Longer than P75 for phase_1
23 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 14, 2016
CompletedStudy Start
First participant enrolled
October 1, 2016
CompletedFirst Posted
Study publicly available on registry
October 5, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2024
CompletedNovember 13, 2024
November 1, 2024
7.5 years
September 14, 2016
November 12, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Safety and tolerability as determined by the number of participants with treatment-related adverse events as assessed by CTCAE v4.03
Baseline Day 1 through Day 56
Identify maximum tolerated (MTD) and/or recommended dose (RD) and schedule for XmAb13676 dosing
Baseline Day 1 through Day 56
Study Arms (6)
Non-CLL B Cell Malignancies (Group NHL) Part A
EXPERIMENTALXmAb13676 administered IV up to 8 weeks, if receiving benefit, this can be extended at investigator's discretion
CLL/SLL (Group CLL) Part A
EXPERIMENTALXmAb13676 administered IV up to 8 weeks, if receiving benefit, this can be extended at investigator's discretion
Non-CLL B Cell Malignancies (Group NHL) Part B
EXPERIMENTALXmAb13676 administered IV up to 8 weeks, if receiving benefit, this can be extended at investigator's discretion
CLL/SLL (Group CLL) Part B
EXPERIMENTALXmAb13676 administered IV up to 8 weeks, if receiving benefit, this can be extended at investigator's discretion
Non-CLL B Cell Malignancies (Group NHL) Part C / Expansion
EXPERIMENTALXmAb13676 administered IV up to 8 weeks, if receiving benefit, this can be extended at investigator's discretion
Non-CLL B Cell Malignancies (Group NHL) Part D / Expansion
EXPERIMENTALXmAb13676 administered SC up to 8 weeks, if receiving benefit, this can be extended at investigator's discretion
Interventions
Biological
Eligibility Criteria
You may qualify if:
- Able to provide written informed consent
- Diagnosis of either Non-CLL B cell malignancy
- Ineligible for or have exhausted standard therapeutic options and have relapsed or refractory disease
- ECOG performance status 0-2
- Fertile patients must agree to use highly effective contraception during and for 5 months (male patients) and 8 months (female patients) after last dose of XmAb13676
- Able and willing to complete the entire study
- Histologically confirmed diagnosis (specified by 2016 World Health Organization) of DLBCL or transformed low-grade lymphoma with measurable disease
- Patient must be refractory or have relapsed after 2 or more standard therapeutic options, at least one of which must have included anti-CD20 antibody therapy.
- Not a candidate for or refusing treatment with hematopoietic stem cell transplantation
- Diagnosis of follicular lymphoma Grades 1-3a
- Patient must be ineligible for or have exhausted standard therapeutic options and have had 2 or more prior systemic regimens.
You may not qualify if:
- Cytotoxic chemotherapy, radiotherapy, or immunotherapy including other anti-CD20 antibodies within 4 weeks, or small molecule or investigational agents within 5 elimination half-lives of the first dose of XmAb13676
- Prior solid organ transplantation
- Failure to recover from Grade 3 or 4 toxicity from previous treatment
- Multiple myeloma/plasma cell leukemia or B cell acute lymphoblastic leukemia
- Known intolerance to CD20 monoclonal antibody therapy
- History of primary central nervous system lymphoma or neoplastic central nervous system disease
- Platelet count \< 50 x 10\^9/L
- Absolute neutrophil count \< 1.0 x 10\^9/L
- Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) at screening \> 3x upper limit of normal (ULN)
- Bilirubin \> 1.5 mg/dL unless prior diagnosis and documentation of ongoing hemolysis or Gilbert's syndrome has been made)
- Estimated creatinine clearance \< 40 mL/min
- Active/uncontrolled autoimmune disease
- Clinically significant cardiac/cardiovascular disease, or pulmonary compromise
- Seizure disorder
- History of stroke with the past 6 mos prior to study entry
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Xencor, Inc.lead
- ICON Clinical Researchcollaborator
Study Sites (23)
Moores UC San Diego Cancer Center
La Jolla, California, 92093, United States
Mayo Clinic
Jacksonville, Florida, 32224, United States
Northside Hospital
Atlanta, Georgia, 30342, United States
The University of Chicago Medicine
Chicago, Illinois, 60637, United States
University of Michigan
Ann Arbor, Michigan, 48109, United States
The Ohio State University Wexner Medical Center and James Cancer Hospital
Columbus, Ohio, 43210, United States
MD Anderson Cancer Center
Houston, Texas, 77030, United States
UVA Health System, Division of Hematology & Oncology
Charlottesville, Virginia, 22908, United States
Swedish Cancer Institute
Seattle, Washington, 98104, United States
Froedtert Hospital and Medical College of Wisconsin
Milwaukee, Wisconsin, 53226, United States
Institut Bergonie - Centre Regional de Lutte Contre Le Cancer de Bordeaux et Sud Ouest
Bordeaux, 33076, France
Hopital Henri Mondor
Créteil, 94010, France
Institut Paoli Calmette Dpt of Oncology/Hematology
Marseille, 13273, France
Chu Montpellier, Hematologie Clinique St. Eloi
Montpellier, 34295, France
CHU de Nantes
Nantes, 44000, France
Centre Antoine Lacassagne
Nice, 06189, France
CHU Haut-Leveque, Service d'Hematologie Clinique et Therapie Cellulaire
Pessac, 33604, France
Centre Hospitalier Lyon-Sud, Service d'Hematologie
Pierre-Bénite, 69495, France
Centre Henri Becquerel
Rouen, 76038, France
Institut Universitaire du Cancer Toulouse Oncopole
Toulouse, 31100, France
CLCC Institut Gustave Roussy
Villejuif, 94805, France
Gachon University Gil Medical Center
Incheon, 21565, South Korea
Royal Marsden Hospital (RMH) - Royal Marsden NHS Foundation Trust
London, SW3 6JJ, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Chet Bohac, PharmD, MD, MSc
Executive Medical Director, Clinical Development, Xencor, Inc.
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 14, 2016
First Posted
October 5, 2016
Study Start
October 1, 2016
Primary Completion
April 1, 2024
Study Completion
April 1, 2024
Last Updated
November 13, 2024
Record last verified: 2024-11
Data Sharing
- IPD Sharing
- Will not share