A Study of XmAb®18087 in Subjects With NET and GIST

NCT ID: NCT03411915

Last Updated: 2022-05-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

62 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-22

Study Completion Date

2021-10-26

Brief Summary

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This is a Phase 1, multiple dose, ascending dose escalation study; to define a MTD/RD and regimen consisting of a first "priming" dose and escalated subsequent doses of XmAb18087; to describe safety and tolerability; to assess PK and immunogenicity; and to preliminarily assess anti-tumor activity of XmAb18087 in subjects with advanced NET or GIST.

The study will enroll dosing cohorts to establish a MTD/RD and regimen in subjects with advanced NET or GIST, then enroll additional subjects into separate NET and GIST expansion cohorts to collect additional data on safety and potential efficacy of XmAb18087.

Detailed Description

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Conditions

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Neuroendocrine Tumor Gastrointestinal Neoplasm

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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XmAb18087

XmAb18087 administered on days 1, 8, 15, and 22 of each 28-day cycle for a total of 3 cycles

Group Type EXPERIMENTAL

XmAb18087

Intervention Type BIOLOGICAL

monoclonal bispecific antibody

Interventions

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XmAb18087

monoclonal bispecific antibody

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Histologically or cytologically confirmed well differentiated low or intermediate grade (World Health Organization \[WHO\] Grade 1 or 2) NET of pancreatic, gastrointestinal, lung, or undetermined origin that is locally advanced or metastatic and has progressed within the past 12 months
* Histologically confirmed GIST that is locally advanced or metastatic
* NET and GIST tumors must be unresectable
* NET subjects must have progressed on or been ineligible for treatment with somatostatin analogues (SSA) and at least one other FDA-approved targeted therapy (everolimus or sunitinib).
* GIST subjects must have previously received all FDA-approved therapies (imatinib mesylate, sunitinib malate, and regorafenib) for which they are eligible
* Must have disease measurable by RECIST 1.1 criteria using either computed tomography (CT) or magnetic resonance imaging (MRI) scan
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

Exclusion Criteria

* Diagnosis of high-grade (WHO Grade 3) or poorly differentiated NET; high-grade neuroendocrine carcinoma; large cell neuroendocrine carcinoma, small cell carcinoma, or mixed small and large cell carcinoma.
* Subjects currently receiving anti-cancer therapies (other than SSAs, which may continue).
* Subjects who have received anti-cancer therapies within 2 weeks of the start of study drug (including chemotherapy, radiation therapy, immunotherapy, etc.).
* Must not be experiencing a Grade 3 or 4 toxicity from previous anti-cancer treatment
* Must not be receiving other anti-cancer therapies (except somatostatin analogues, which may be allowed)
* Must not have poorly controlled diabetes mellitus, known central nervous system involvement by malignant disease or insufficient bone marrow, renal, or hepatic function
Minimum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ICON plc

INDUSTRY

Sponsor Role collaborator

Xencor, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Zequn Tang, MD, PhD

Role: STUDY_DIRECTOR

Senior Medical Director, Clinical Development, Xencor

Locations

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Mayo Clinic

Phoenix, Arizona, United States

Site Status

City of Hope Medical Center

Duarte, California, United States

Site Status

Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute

Los Angeles, California, United States

Site Status

Stanford Cancer Center

Palo Alto, California, United States

Site Status

University of Colorado, Anschutz Medical Campus

Aurora, Colorado, United States

Site Status

Mayo Clinic

Jacksonville, Florida, United States

Site Status

H. Lee Moffitt Cancer Center & Research Institute

Tampa, Florida, United States

Site Status

Emory University

Atlanta, Georgia, United States

Site Status

Northwestern Medicine

Chicago, Illinois, United States

Site Status

Dana-Farber Cancer Institute

Boston, Massachusetts, United States

Site Status

Mayo Clinic

Rochester, Minnesota, United States

Site Status

Memorial Sloan Kettering Cancer Center

New York, New York, United States

Site Status

James Cancer Center

Columbus, Ohio, United States

Site Status

University of Pennsylvania, Abramson Cancer Center

Philadelphia, Pennsylvania, United States

Site Status

MD Anderson Cancer Center

Houston, Texas, United States

Site Status

University of Virginia

Charlottesville, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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DUET-1

Identifier Type: OTHER

Identifier Source: secondary_id

XmAb18087-01

Identifier Type: -

Identifier Source: org_study_id

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