Study of YH004 (4-1BB Agonist Antibody) in Advanced or Metastatic Malignancy

A First-In-Human, Multicenter, Open-Label, Phase I Dose Escalation Study To Evaluate The Safety, Tolerability And Pharmacokinetics Of YH004 As A Single Agent And Combination With Toripalimab In Subjects With Advanced Solid Tumors And Relapsed Or Refractory Non-Hodgkin Lymphoma

YH004 is a humanized monoclonal antibody that specifically binds to 4-1BB, and acts as an agonist against 4-1BB.

This first in human study of YH004 is designed to establish the maximum tolerated dose (MTD) and/or the recommended Phase II dose (RP2D) of YH004, both as a single agent (monotherapy) and in combination with a fixed dose of anti-PD-1 antibody (Toripalimab) in the treatment of advanced solid tumors and relapsed or refractory non-Hodgkin Lymphoma.

Study Overview

• Status: Completed
• Conditions: Cancer
• Intervention / Treatment: Drug: YH004

Detailed Description

This is an open-label, non-randomized, two-stage, FIH Phase 1 study, utilizing an accelerated dose escalation followed by a traditional 3 + 3 dose escalation algorithm to identify the MTD and/or RP2D of YH004 as a single agent (monotherapy) and in combination with Toripalimab. The first stage of the study is the dose escalation phase (i.e., Phase 1a). The second stage of the study is the dose expansion phase (i.e., Phase 1b). During the study, dose interruption(s) and/or delay(s) may be implemented based on toxicity. Dose modifications are permitted following protocol guidelines. Intra-patient dose escalations will be allowed for the early dose cohorts (single-patient dose groups) in Phase 1a. Patients will be considered evaluable for safety and tolerability if they receive at least one dose of YH004 or Toripalimab at the specified cohort dose. Patients in all parts of the trial will remain on therapy until confirmed disease progression or for 1 year, whichever occurs first. However, patients who are clinically unstable will discontinue following the initial assessment of disease progression.

• Study Type: Interventional
• Enrollment (Actual): 8
• Phase: Phase 1

Contacts and Locations

Study Locations

• Australia
  • Malvern East, Australia, 3144
    • Cabrini Health Limited
  • Sydney, Australia, 2145
    • Westmead Hospital
  • Wollongong, Australia, 2217
    • Southside Cancer Care Centre, School of Medicine, University of Wollongong

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years to 76 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Males or females aged 18 years to 80 years at the time of screening.
• Ability to understand and willingness to sign a written informed consent document.
• Subjects must have advanced histologically or cytologically confirmed solid tumor or relapsed or refractory Non-Hodgkin lymphoma.
• Adequate bone marrow, liver, and renal functions.
• Men and women of childbearing potential must agree to take highly effective contraceptive methods.
• Women of reproductive potential must have negative serum beta human chorionic gonadotropin (β -HCG) pregnancy test within 7 days of the first dose.

Exclusion Criteria:

• Receipt of systemic anticancer therapy including investigational agents or devices within 5 half-lives of the first dose of study treatment.
• Known active CNS metastasis.
• Has received a live-virus vaccine within 28 days.
• History of clinically significant sensitivity or allergy to monoclonal antibodies and their excipients or known allergies to antibodies produced from Chinese hamster ovary cells.
• Abnormality of QT interval or syndrome.
• Patients with history of Grade ≥ 3 immune-related AEs (irAEs) or irAE.
• Patients who receive concurrent or prior use of an immunosuppressive agent within 4 weeks of the first dose of study drug.
• Previous exposure to anti-CD137 (eg, utomilumab, urelumab) antibodies. .
• Active or chronic autoimmune disease that has required systemic treatment in the past 3 years or who are receiving systemic therapy for an autoimmune or inflammatory disease.
• Has a clinically significant cardiac condition, including unstable angina, acute myocardial infarction within 6 months.
• Has an active infection before the first dose of study treatment.
• History of (non-infectious) pneumonitis that required corticosteroids or current pneumonitis, or history of interstitial lung disease..
• Female patients who are pregnant or breastfeeding.
• Any evidence of severe or uncontrolled systemic disease.
• Any condition that the investigator or primary physician believes may not be appropriate for participating the study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: YH004; The dose escalation phase includes 7 dose levels of YH004, and the highest dose is up to 10mg/kg. Route of administration is IV infusion, and the frequency of administration is once every 3 weeks (Q3W). one cycle is 3 weeks, and treatment can be up to 16 cycles if patients receive benefits.	Drug: YH004; IV infusion once every 3 weeks (Q3W).

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Treatment-emergent adverse events (TEAEs) including determination of DLTs and serious AEs (SAEs)	Adverse events will be assessed, and severity will be assigned by using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0	up to 24 months
Maximum tolerated dose (MTD) and/or the recommended Phase II dose (RP2D)	The MTD and/or RP2D will be determined based on TEAEs	up to 24 months

Collaborators and Investigators

• Sponsor: Eucure (Beijing) Biopharma Co., Ltd
• Investigators: Study Chair: Rong Chen, Ph.D, Eucure (Beijing) Biopharma Co., Ltd

Study record dates

Study Major Dates

• Study Start (Actual): December 7, 2021
• Primary Completion (Actual): July 16, 2023
• Study Completion (Actual): July 16, 2023

Study Registration Dates

• First Submitted: August 27, 2021
• First Submitted That Met QC Criteria: September 1, 2021
• First Posted (Actual): September 10, 2021

Study Record Updates

• Last Update Posted (Actual): September 7, 2023
• Last Update Submitted That Met QC Criteria: September 6, 2023
• Last Verified: September 1, 2023

More Information

Terms related to this study

• Keywords: Toripalimab; anti-PD-1; Eucure; YH004; anti-4-1BB
• Other Study ID Numbers: YH004002

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No