Phase 1 Study of INBRX-109 in Subjects With Locally Advanced or Metastatic Solid Tumors Including Sarcomas

NCT ID: NCT03715933

Last Updated: 2025-12-09

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

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

321 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-10-08

Study Completion Date

2026-12-31

Brief Summary

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This is a first-in-human, open-label, non-randomized, three-part phase 1 trial of INBRX-109, which is a recombinant humanized tetravalent antibody targeting the human death receptor 5 (DR5).

Detailed Description

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Conditions

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Ewing Sarcoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Expansion Malignant Pleural Mesothelioma (Complete)

Subjects with malignant pleural mesothelioma will be treated with single-agent INBRX-109 at either the MTD or RP2D.

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Expansion Gastric Adenocarcinoma (Complete)

Subjects with gastric adenocarcinoma will be treated with single-agent INBRX-109 at either the MTD or RP2D.

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Expansion Colorectal Adenocarcinoma (Complete)

Subjects with colorectal (CRC) adenocarcinoma will be treated with single-agent INBRX-109 at either the MTD or RP2D.

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Expansion Sarcomas (Complete)

Subjects with certain sarcoma subtypes will be treated with single-agent INBRX-109 at either the MTD or RP2D.

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Combination Expansion Malignant Pleural Mesothelioma (Complete)

Subjects with malignant pleural mesothelioma will be treated with INBRX-109 in combination with chemotherapies (carboplatin, cisplatin, carboplatin and pemetrexed, or cisplatin and pemetrexed)

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

carboplatin

Intervention Type DRUG

chemotherapy

pemetrexed

Intervention Type DRUG

chemotherapy

Combination Expansion Pancreatic Adenocarcinoma (Complete)

Subjects with pancreatic adenocarcinoma will be treated with INBRX-109 in combination with 5FU/irinotecan based chemotherapy

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Irinotecan

Intervention Type DRUG

Chemotherapy

Leucovorin

Intervention Type DRUG

chemotherapy

Fluorouracil

Intervention Type DRUG

chemotherapy

Combination Expansion Ewing Sarcoma

Subjects with Ewing Sarcoma will be treated with INBRX-109 in combination with irinotecan and temozolomide

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Irinotecan

Intervention Type DRUG

Chemotherapy

Temozolomide

Intervention Type DRUG

Chemotherapy

Combination Expansion Colorectal Adenocarcinoma (Complete)

Subjects with colorectal adenocarcinoma will be treated with INBRX-109 in combination with FOLFIRI based chemotherapy

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Irinotecan

Intervention Type DRUG

Chemotherapy

Leucovorin

Intervention Type DRUG

chemotherapy

Fluorouracil

Intervention Type DRUG

chemotherapy

Expansion Solid Tumors (Complete)

Subjects with Solid tumors and high BMI will be treated with single-agent INBRX-109 at either the MTD or RP2D.

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Combination Expansion SDH-deficient solid tumors or GIST (Complete)

Subjects with SDH-deficient solid tumors or GIST will be treated with INBRX-109 in combination with temozolomide

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Temozolomide

Intervention Type DRUG

Chemotherapy

Dose Escalation (Complete)

INBRX-109 will be escalated (3+3 design) in subjects with locally advanced or metastatic solid tumors including sarcomas.

Group Type EXPERIMENTAL

INBRX-109

Intervention Type DRUG

Tetravalent DR5 Agonist Antibody

Interventions

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INBRX-109

Tetravalent DR5 Agonist Antibody

Intervention Type DRUG

Irinotecan

Chemotherapy

Intervention Type DRUG

Temozolomide

Chemotherapy

Intervention Type DRUG

carboplatin

chemotherapy

Intervention Type DRUG

pemetrexed

chemotherapy

Intervention Type DRUG

Leucovorin

chemotherapy

Intervention Type DRUG

Fluorouracil

chemotherapy

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Males or females aged ≥12 to less than 85 years for Ewing sarcoma and 18 to less than 85 years of age for other tumors.
2. Part 3 combination therapy expansion tumor types:

* Histologically confirmed Ewing sarcoma with a classical fusion: Patients with locally advanced or metastatic, unresectable, relapsed, or refractory disease who have received at least 1 but no more than 2 prior lines of systemic treatment with a preferred first line chemotherapy regimens.
* Colorectal adenocarcinoma: Patients with locally advanced or metastatic, unresectable disease, who have received at least 2 but no more than 3 prior lines of systemic therapy.
3. Measurable disease as defined by RECISTv1.1 (or modified RECIST for mesothelioma) criteria.
4. Adequate hematologic, coagulation, hepatic and renal function as defined per protocol.
5. Eastern Cooperative Oncology Group Performance Status (ECOG PS) score of 0 or 1, or Karnofsky Performance Status score of ≥60, or Lansky Play-Performance Scale for Children score ≥60 (for patients less than 16 years).
6. Estimated life expectancy of at least 12 weeks.
7. Availability of archival tissue or fresh cancer biopsy are mandatory.

Exclusion Criteria

1. Prior treatment with or exposure to DR5 agonists.
2. Receipt of any anticancer therapy (including investigational agents) within 4 weeks or within 5 half-lives prior to the first dose of study treatment. Exceptions per protocol.
3. Allergy or sensitivity to INBRX-109 or known allergies to CHO-produced antibodies.
4. Receipt of radiotherapy within 4 weeks prior to the first dose of study treatment, and liver-directed within 12 months prior to the first dose of study drug.
5. Subject has undergone allogeneic hematopoietic stem cell or bone marrow transplantation within the last 5 years. Exceptions per protocol.
6. Prior or concurrent malignancies. Exceptions per protocol.
7. Hematologic malignancies.
8. Symptomatic active primary CNS tumors, leptomeningeal disease, and CNS metastases. Exceptions per protocol. Patients with any evidence or history of multiple sclerosis (MS) or other demyelinating disorders are excluded.
10. Acute viral or toxic liver disease within 12 months prior to the first dose of study drug.
11. Evidence or history of hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) infection.
12. Known sensitivity or contraindications to the following drugs:

* Ewing sarcoma: irinotecan or TMZ
* colorectal adenocarcinoma: FU, leucovorin, or irinotecan
13. Clinically significant cardiac condition, including myocardial infarction, uncontrolled angina, cerebrovascular accident, or other acute uncontrolled heart disease less than 3 months prior to enrollment.
14. Acute, hemodynamically significant deep vein thrombosis or clinically significant pulmonary embolism not resolved or stable for at least 3 months prior to the start of study treatment.
15. Major surgery within 4 weeks prior to enrollment on this trial.
16. Systemic infection requiring antibiotics within 2 weeks prior to the first dose of study drug.
Minimum Eligible Age

12 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Inhibrx Biosciences, Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Lead

Role: STUDY_DIRECTOR

Inhibrx Biosciences, Inc

Locations

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HonorHealth Research Institute

Scottsdale, Arizona, United States

Site Status COMPLETED

Precision NextGen Oncology and Research

Beverly Hills, California, United States

Site Status RECRUITING

City of Hope

Duarte, California, United States

Site Status RECRUITING

Valkyrie Clinical Trials

Los Angeles, California, United States

Site Status RECRUITING

University of California, San Diego (UCSD) - Moores Cancer Center

San Diego, California, United States

Site Status RECRUITING

University of California, San Francisco (UCSF)

San Francisco, California, United States

Site Status RECRUITING

Sarcoma Oncology Center

Santa Monica, California, United States

Site Status RECRUITING

University of Colorado Hospital

Aurora, Colorado, United States

Site Status RECRUITING

Emory University - Winship Cancer Institute

Atlanta, Georgia, United States

Site Status RECRUITING

The University of Chicago

Chicago, Illinois, United States

Site Status COMPLETED

University of Michigan

Ann Arbor, Michigan, United States

Site Status RECRUITING

START Midwest Michigan, PC

Grand Rapids, Michigan, United States

Site Status RECRUITING

David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center

New York, New York, United States

Site Status RECRUITING

Cleveland Clinic

Cleveland, Ohio, United States

Site Status RECRUITING

Oregon Health & Science University

Portland, Oregon, United States

Site Status RECRUITING

Children's Hospital of Philadelphia- Center for Childhood Cancer Research

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

University of Pennsylvania Abramson Cancer Center

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Vanderbilt University School of Medicine

Nashville, Tennessee, United States

Site Status RECRUITING

UT MD Anderson Cancer Center

Houston, Texas, United States

Site Status RECRUITING

NEXT Oncology

San Antonio, Texas, United States

Site Status COMPLETED

University of Virginia

Charlottesville, Virginia, United States

Site Status RECRUITING

NEXT Oncology - Virginia

Fairfax, Virginia, United States

Site Status RECRUITING

Centre Leon Berard

Lyon, , France

Site Status RECRUITING

Gustave Roussy

Villejuif, , France

Site Status RECRUITING

La Fondazione e l'Istituto di Candiolo

Candiolo, , Italy

Site Status RECRUITING

Fondazione IRCCS Istituto Nazionale dei Tumori

Milan, , Italy

Site Status RECRUITING

University Medical Center Groningen

Groningen, , Netherlands

Site Status RECRUITING

Academisch Ziekenhuis Leiden

Leiden, , Netherlands

Site Status RECRUITING

Hospital Universitario Vall d'Hebron

Barcelona, , Spain

Site Status RECRUITING

Hospital de la Santa Creu i Sant Pau

Barcelona, , Spain

Site Status RECRUITING

Hospital Clinico San Carlos

Madrid, , Spain

Site Status RECRUITING

Great North Children's Hospital

London, , United Kingdom

Site Status RECRUITING

University College London Hospital

London, , United Kingdom

Site Status RECRUITING

The Royal Marsden NHS Foundation Trust

London, , United Kingdom

Site Status RECRUITING

Royal Manchester Children's Hospital

Manchester, , United Kingdom

Site Status RECRUITING

Countries

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United States France Italy Netherlands Spain United Kingdom

Central Contacts

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Study Director, -Inhibrx

Role: CONTACT

858-500-7833

Facility Contacts

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Francisco Capilla

Role: primary

424-777-0708

Heather Lewis

Role: primary

626-256-4673

New Patient Services Coordinator

Role: backup

1-800-826-4673

Carla Collier

Role: primary

John Bienvenida

Role: primary

858-822-4907

Shakeela Dad

Role: backup

June Dy

Role: primary

415-866-7674

Victoria Chua-Alcala

Role: primary

310-552-9999

Michaela Riley

Role: primary

Kimberly Homere

Role: primary

404-778-6583

Myron Hepner

Role: primary

Julie Burns

Role: primary

616-954-5559

Leland Rouse

Role: backup

Care Advisors

Role: primary

833-675-5437

Role: primary

216-444-7923

Zach Nelson

Role: primary

503-494-0833

Matthew Stein

Role: primary

267-425-3169

Role: backup

Sarcoma Research

Role: primary

Samrah Ahmed

Role: primary

615-936-9598

Emily Scott

Role: primary

713-745-2243

Sarah Sommer

Role: primary

434-924-7613

Anthony Young

Role: primary

703-783-4536

Role: backup

References

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Subbiah V, Chawla SP, Conley AP, Wilky BA, Tolcher A, Lakhani NJ, Berz D, Andrianov V, Crago W, Holcomb M, Hussain A, Veldstra C, Kalabus J, O'Neill B, Senne L, Rowell E, Heidt AB, Willis KM, Eckelman BP. Preclinical Characterization and Phase I Trial Results of INBRX-109, A Third-Generation, Recombinant, Humanized, Death Receptor 5 Agonist Antibody, in Chondrosarcoma. Clin Cancer Res. 2023 Aug 15;29(16):2988-3003. doi: 10.1158/1078-0432.CCR-23-0974.

Reference Type DERIVED
PMID: 37265425 (View on PubMed)

Other Identifiers

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Ph1 INBRX-109

Identifier Type: -

Identifier Source: org_study_id

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