Dose Escalation and Expansion Study of HM97662 in Advanced or Metastatic Solid Tumors

NCT05598151 | Recruiting Phase 1

• 1 other identifier: HM-EZHI-101
• Study Type: interventional
• Target: 170
• Locations: 2 countries
• Sites: 10

Brief Summary

This is a Phase1 study to assess the safety, PK, PD and efficacy of HM97662, EZH1/2 dual inhibitor, in solid tumors. The study is comprised of Dose-Escalation Part followed by randomized Dose-Ranging Part and Dose-Expansion Part. Dose-Escalation Part is planned with a 3+3 Dose-Escalation design and is to establish the MTD or RD for randomized Dose-Ranging Part. Dose-Ranging Part is designed mainly to further evaluate safety and preliminary efficacy of HM97662 monotherapy in subjects with specific genomic alterations to more precisely determine the potential RP2D that are to be tested in a Dose-Expansion Part. Dose-Expansion Part is designed to assess the potential efficacy of HM97662 monotherapy when administered at the RP2D to subjects in indication-specific expansion cohorts.

Conditions

Advanced or Metastatic Solid Tumors

Outcome Measures

Primary Outcomes (2)

• Incidence and nature of DLTs

  Days 1-28 of Cycle 1 (DLT assessment period) in Dose-Escalation Part

• Incidence, nature, and severity of adverse events and laboratory abnormalities graded per NCI CTCAE v5.0

  until Safety Follow-up, 30 days after the last dose of study drug or until initiation of another anti-cancer therapy, whichever occurs first

Secondary Outcomes (8)

• Area under the concentration-time curve (AUC)

  until Cycle 4 Day1 (each cycle is 28 days)

• The maximum plasma concentration (Cmax)

  until Cycle 4 Day1 (each cycle is 28 days)

• Trough plasma concentration (Ctrough)

  until Cycle 4 Day1 (each cycle is 28 days)

• Time to reach Cmax (Tmax)

  until Cycle 4 Day1 (each cycle is 28 days)

• Terminal Half-life (T1/2)

  until Cycle 4 Day1 (each cycle is 28 days)

Study Arms (1)

HM97662

EXPERIMENTAL

Tablet, oral administration, once daily (QD), continuous dosing

Drug: HM97662

Interventions

HM97662 DRUG

To evaluate the safety, tolerability, preliminary anti-tumor efficacy, PK and PD of HM97662 in solid tumors

HM97662

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Histologically and/or cytologically confirmed advanced or metastatic solid tumor who have failed/are intolerant to standard therapy.
• Patients for dose-escalation part must have evaluable or measurable disease at baseline and the patients for randomized dose-ranging and dose-expansion part must have at least one measurable lesion at baseline by CT or MRI per Response Evaluation Criteria in Solid Tumor (RECIST v1.1).
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• Life expectancy ≥ 3 months before starting HM97662.
• Adequate renal function.
• Adequate hematologic function.
• Adequate liver function.
• Males or females aged ≥ 18 years (or country's legal age of majority if the legal age was \> 18 years) at the time of informed consent.
• For Dose-Ranging Part, documentation of an alteration in at least one of the genes of the SWI/SNF complex in tumor tissue (archival or newly obtained).

You may not qualify if:

• Prior exposure to valemetostat or other EZH1/2 dual inhibitor.
• Known brain metastases that are untreated, symptomatic, or require therapy to control symptoms.
• Patients currently taking medications that are known strong CYP3A inhibitors and strong or moderate CYP3A inducers.
• Any prior treatment-related (i.e. chemotherapy, immunotherapy, radiotherapy) clinically significant toxicities that have not resolved to Grade ≤ 1 per CTCAE version 5.0 or prior treatment-related toxicities that are clinically unstable and clinically significant at time of enrollment.
• Major surgery within 4 weeks before the first dose of study drug treatment in Cycle 1.
• Females who are pregnant or breastfeeding.
• Patients who have undergone an organ transplant.

Sponsors & Collaborators

• Hanmi Pharmaceutical Company Limited: lead

Study Sites (10)

Cancer Research SA

Adelaide, Australia

RECRUITING

Grampians Health

Ballarat, Australia

RECRUITING

Monash Medical Centre

Clayton, Australia

RECRUITING

Peninsula and Southeast Oncology

Frankston, Australia

RECRUITING

National Cancer Center

Goyang-si, Gyeonggi-do, South Korea

NOT YET RECRUITING

Asan Medical Center

Seoul, South Korea

RECRUITING

Samsung Medical Center

Seoul, South Korea

NOT YET RECRUITING

Seoul National University Bundang Hospital

Seoul, South Korea

RECRUITING

Seoul National University Hospital

Seoul, South Korea

RECRUITING

The Catholic University of Korea, Seoul ST. Mary's Hospital

Seoul, South Korea

RECRUITING

Central Study Contacts

Jiyeon Yoon

CONTACT

82-2-410-0368; mush1223@hanmi.co.kr

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 5, 2022
• First Posted: October 28, 2022
• Study Start: January 11, 2023
• Primary Completion (Estimated): January 1, 2028
• Study Completion (Estimated): June 1, 2028
• Last Updated: April 30, 2025

Record last verified: 2025-04

Locations

AU (4); KR (6)