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Clinical Trial of YH32367 in Patients With HER2 Positive Locally Advanced or Metastatic Solid Tumor

Phase 1
Recruiting
Conditions
HER2-Positive Solid Tumor
Interventions
Registration Number
NCT05523947
Lead Sponsor
Yuhan Corporation
Brief Summary

This first-in-human study will be counducted to evaluate the safety, tolerability, pharmacokinetics (PK) and anti-tumor activity of YH32367 in Patients with HER2-Positive Locally Advanced or Metastatic Solid Tumors.

Detailed Description

YH32367, a novel HER2/4-1BB bispecific antibody (BsAb), simultaneously targets HER2 and h4-1BB and binds to both targets. YH32367 exhibits a strong 4-1BB signal activation as well as blocking of HER2 signaling in HER2-expressing tumor cells. YH32367 stimulates IFN-γ secretion from T cells and thereby induces tumor cells lysis.

This is a Phase 1/2, open-label, multicenter, first-in-human study of YH32367. This 2-part study will include both a Dose Escalation part, to identify the Maximum Tolerated Dose (MTD) and/or two dose levels for RP2D selection, and a Dose Expansion part, to determine RP2D and to confirm the safety, tolerability and efficacy of YH32367 at the RP2D.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
137
Inclusion Criteria

[Dose Escalation Part]

  • Pathologically confirmed HER2-positive
  • Mandatory provision of tumor tissue sample

[Dose Expansion Part]

  • Patients who have at least one measurable lesion

  • Mandatory provision of tumor tissue sample

    1. Cohort 1: Pathologically confirmed HER2-positive biliary tract cancer
    2. Cohort 2: Pathologically confirmed HER2-positive metastatic solid tumor malignancy other than breast and gastric or gastroesophageal junction adenocarcinoma and biliary tract cancer
Exclusion Criteria
  • Uncontrolled central nervous system (CNS) metastases
  • Spinal cord compression
  • Carcinomatous meningitis
  • Acute coronary syndromes
  • Heart failure
  • Interstitial lung disease (ILD)
  • Pneumonitis
  • History of a second primary cancer
  • Human immunodeficiency virus (HIV)
  • Active chronic hepatitis B
  • Hepatitis C
  • Systemic steroid therapy
  • Autoimmune disease

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
YH32367YH32367Dose Escalation Part: 8 Cohorts. In Dose Escalation part, patients are assigned to receive YH32367 at a starting dose and the dose being escalated/de-escalated in adjacent dose cohorts. Dose Expansion Part: 2 Cohorts (Cohort 1: Biliary tract cancer, Cohort 2: Solid tumors). Dose Expansion part will consist of multiple cohorts in patients who were treated with at least 1 prior gemcitabine- and/or cisplatin-based therapy, HER2 positive biliary tract cancer(Cohort 1); in patients who were treated with all available standard therapies and have no available options, HER2 positive solid tumor malignancies other than breast and gastric or gastroesophageal junction adenocarcinoma and biliary tract cancer(Cohort 2).
Primary Outcome Measures
NameTimeMethod
Treatment-emergent adverse events (TEAEs) up to Day 21in dose escalation part, an average of 21 days

To assess the safety and tolerability of YH32367

Objective Response Rate (ORR)through dose expansion part completion, approximately 2.5 year

To assess the ORR of YH32367 at the recommended Phase 2 dose (RP2D) according to RECIST v1.1 by blinded independent central reviews (BICR)

Secondary Outcome Measures
NameTimeMethod
Area under the serum concentration-time curve from time 0 to the last quantifiable concentration (AUClast)up to 66 weeks

To characterize the PK of YH32367

maximum observed serum concentration (Cmax)up to 66 weeks

To characterize the PK of YH32367

time to reach Cmax (Tmax)up to 66 weeks

To characterize the PK of YH32367

Presence and characterization of YH32367 ADA in serum including titer of ADA and neutralizing antibodiesthrough study completion, approximately 3.5 year

To explore the immunogenicity of YH32367

Objective Response Rate (ORR)through study completion, approximately 3.5 year

To assess the anti-tumor efficacy according to RECIST v1.1 by Investigator assessment

Duration of Response (DoR)through study completion, approximately 3.5 year

To assess the anti-tumor efficacy according to RECIST v1.1 by Investigator assessment

Disease Control Rate (DCR)through study completion, approximately 3.5 year

To assess the anti-tumor efficacy according to RECIST v1.1 by Investigator assessment

Depth of Responsethrough study completion, approximately 3.5 year

To assess the anti-tumor efficacy according to RECIST v1.1 by Investigator assessment

Time to Responsethrough study completion, approximately 3.5 year

To assess the anti-tumor efficacy according to RECIST v1.1 by Investigator assessment

Progression-free survival (PFS)through study completion, approximately 3.5 year

To assess the anti-tumor efficacy according to RECIST v1.1 by Investigator assessment

TEAEsthrough dose expansion part completion, approximately 2.5 year

To assess the safety and tolerability of YH32367 at the RP2D

Overall Survival (OS)through study completion, approximately 3.5 year

To assess overall survival of YH32367

Trial Locations

Locations (11)

Southern Oncology Clinical Research Unit

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Adelaide, Australia

Austin Health

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Melbourne, Australia

Breast Cancer Research Centre - WA

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Perth, Australia

Blacktown Hospital

šŸ‡¦šŸ‡ŗ

Sydney, Australia

CHA Bundang Medical Center

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Seongnam, Gyeonggi-do, Korea, Republic of

Korea University Anam Hospital

šŸ‡°šŸ‡·

Seoul, Korea, Republic of

Seoul National University Hospital

šŸ‡°šŸ‡·

Seoul, Korea, Republic of

Severance Hospital, Yonsei University Health System

šŸ‡°šŸ‡·

Seoul, Korea, Republic of

Asan Medical Center

šŸ‡°šŸ‡·

Seoul, Korea, Republic of

Samsung Medical Center

šŸ‡°šŸ‡·

Seoul, Korea, Republic of

The Catholic University of Korea, St. Mary's hospital

šŸ‡°šŸ‡·

Seoul, Korea, Republic of

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