NCT04198766
Study of INBRX-106 and INBRX-106 in Combination With Pembrolizumab (Keytruda®) in Subjects With Locally Advanced or Metastatic Solid Tumors (Hexavalent OX40 Agonist)
Recruiting · Phase 1, Phase 2 · Inhibrx Biosciences, Inc · registry updated 2026-11-06
Inclusion and exclusion lines below are quoted from ClinicalTrials.gov. No match score is shown, because a score needs a person's age, biomarkers, and treatment dates. Confirm the record with the study team.
This is a Phase 1/2, open-label, non-randomized, 4-part trial to determine the safety profile and identify the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of INBRX 106 administered as a single agent or in combination with the anti-PD-1 checkpoint inhibitor (CPI) pembrolizumab (Keytruda®). KEYTRUDA is a registered trademark of Merck Sharp \& Dohme LLC, a subsidiary of Merck \& Co., Inc., Rahway, NJ, USA.
Inclusion
- Males or females aged ≥18 years.
- Parts 1 and 3 (escalation cohorts): Subjects with locally advanced or metastatic non resectable solid tumors, whose disease has progressed despite all standard therapies or for whom no further standard or clinically acceptable therapy exists.
- Part 2 (single-agent expansion cohort): Subjects with NSCLC, melanoma, HNSCC, G/GEA, RCC, or TCC, with histologically confirmed, locally advanced or metastatic, non-resectable disease, which has progressed despite all standard therapies including CPI or for whom no standard or clinically acceptable therapy exists.
- Part 4 (expansion cohorts in combination with pembrolizumab, with or without chemotherapy): Subjects with melanoma (all types), HNSCC, G/GEA, RCC, TCC, NSCLC, or MSI-high, TMB-high, MMR-deficient tumors, with histologically confirmed, locally advanced or metastatic, non resectable disease, which is either CPI-naive (melanoma, HNSCC, NPC) or progressed despite all standard therapies including CPI (NSCLC, RCC, TCC, uveal melanoma, MSI-high, TMB-high, or MMR-deficient solid tumors) or for whom no standard or clinically acceptable therapy exists.
- For Cohort F3 (NSCLC), subjects may have progressed on no more than 2 lines of standard therapy that must include at least one PD-1/L1 regimen.
- For Cohort F4 (HNSCC and NPC), subjects may be previously treated with no more than 1 prior chemotherapy regimen in metastatic setting. Prior PD-1/L1 in curative (neo-adjuvant/adjuvant) setting is allowed only if completed \>/= 6 months prior to progression to local recurrence or metastatic disease.
Exclusion
- Prior exposure to OX40 agonists. Exposure to anti-PD-1 and/or anti PD-L2 CPIs or an agent targeting other co-stimulatory T-cell receptor pathways.
- Receipt of any investigational product or any approved anticancer drug(s) or biological product(s) within 4 weeks prior to the first dose of study drug with certain exceptions.
- Hematologic malignancies (e.g., ALL, AML, MDS, CLL, CML, NHL, Hodgkin's lymphoma and multiple myeloma)
- Prior or concurrent malignancies. Exception: Subjects with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessments of INBRX-106.
- Grade ≥ 3 immune-related adverse events (irAEs) or irAE that lead to discontinuation of prior immunotherapy. Some exceptions as defined per protocol apply.
- Active autoimmune disease or documented history of autoimmune disease that required systemic steroids or other immunosuppressive medications. Certain exceptions as defined in protocol apply.