Dose Escalation and Expansion Study of HM16390 Alone or With Pembrolizumab in Advanced or Metastatic Solid Tumors

Summary

This is a First-in-Human, Phase 1, Dose-Escalation and Dose-Expansion study of HM16390, as a single agent and in combination with pembrolizumab to assess safety, tolerability, MTD, RP2D, PK, and efficacy in patients with advanced or metastatic solid tumors. Dose-Escalation Part is planned to establish the MTD or RDs for the randomized Dose-Ranging Part. Based on the results of the Dose-Escalation Part, additional eligible subjects will be randomized 1:1 into each dose level. After a comprehensive review of available data from both Dose-Escalation Part and Dose-Ranging Part, the RDEs to be tested in the Dose-Expansion Part are determined. Dose-Expansion Part is designed to assess the potential efficacy of HM16390 as a single agent and in combination with pembrolizumab when administered at the RDEs to subjects in indication-specific expansion cohorts.

Eligibility

Key Inclusion Criteria:

* Have a histologically and/or cytologically confirmed advanced or metastatic solid tumor and have failed or are intolerant to standard therapy with clinical benefit.
* Patients in the Dose-Escalation Part must have evaluable or measurable disease at baseline and the patients for Dose-Ranging and Dose-Expansion Part must have at least one measurable lesion at baseline by computed tomography (CT) or magnetic resonance imaging (MRI) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 assessed within 7 days before allocation or randomization.
* Age of 18 years or older (or country's legal age of majority if the legal age was \>18 years)
* Adequate renal function.
* Adequate hematologic function.
* Adequate liver function.

Key Exclusion Criteria:

* Received prior treatment with agent targeting the IL-2, IL-7, or IL-15 receptors, or related to mode of action of HM16390.
* Known active CNS metastases and/or carcinomatous meningitis.
* History of severe toxicities associated with a prior immunotherapy.
* Any prior treatment-related (i.e. chemotherapy, immunotherapy, radiotherapy) clinically significant toxicities that have not resolved to Grade ≤ 1 per NCI-CTCAE version 5.0 or prior treatment-related toxicities that are clinically unstable and clinically significant at time of enrollment.
* Has ongoing or suspected autoimmune disease.
* Known active and clinically significant bacterial, fungal or viral infection including known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness, immunocompromised patients.
* History of chronic liver disease or evidence of hepatic cirrhosis.

Conditions2

Locations2 sites

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