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OncoMatch/Clinical Trials/NCT03715933

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

Is NCT03715933 recruiting? Yes, currently enrolling (May 2026). This Phase 1 trial studies multiple treatments for ewing sarcoma.

Phase 1RecruitingInhibrx Biosciences, IncNCT03715933Data as of May 2026

Treatment: INBRX-109 · Irinotecan · Temozolomide · carboplatin · pemetrexed · Leucovorin · FluorouracilThis 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).

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Extracted eligibility criteria

Cancer type

Sarcoma

Performance status

ECOG 0–1(Restricted strenuous activity)

Prior therapy

Must have received: systemic chemotherapy

at least 1 but no more than 2 prior lines of systemic treatment with a preferred first line chemotherapy regimens

Must have received: systemic therapy

at least 2 but no more than 3 prior lines of systemic therapy

Cannot have received: DR5 agonist

Prior treatment with or exposure to DR5 agonists

Cannot have received: anticancer therapy (including investigational agents)

Exception: Exceptions per protocol

Receipt of any anticancer therapy (including investigational agents) within 4 weeks or within 5 half-lives prior to the first dose of study treatment

Cannot have received: radiotherapy

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

Cannot have received: allogeneic hematopoietic stem cell or bone marrow transplantation

Exception: Exceptions per protocol

Subject has undergone allogeneic hematopoietic stem cell or bone marrow transplantation within the last 5 years

Lab requirements

Blood counts

Adequate hematologic function as defined per protocol

Kidney function

Adequate renal function as defined per protocol

Liver function

Adequate hepatic function as defined per protocol

Adequate hematologic, coagulation, hepatic and renal function as defined per protocol

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • HonorHealth Research Institute · Scottsdale, Arizona
  • Precision NextGen Oncology and Research · Beverly Hills, California
  • City of Hope · Duarte, California
  • Valkyrie Clinical Trials · Los Angeles, California
  • University of California, San Diego (UCSD) - Moores Cancer Center · San Diego, California

Showing up to 5 US sites. See all sites on ClinicalTrials.gov →

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