HF50 in HER-2 Positive and Low-expression Advanced Solid Tumors

Trial statusRecruiting
Trial phaseEarly Phase 1
Trial typeInterventional
Biological sexAll
Age18-75
SponsorHighField Biopharmaceuticals Corporation

About this trial

This is an open-label, single-arm, non-randomized, single-center, dose-escalation study designed to evaluate the safety and tolerability of HF50 in patients with HER-2 positive and HER-2 low-expression advanced solid tumors. The primary objectives are to assess the safety, tolerability, and determine the maximum tolerated dose (MTD) and/or recommended Phase II dose (RP2D) of HF50. Secondary objectives include evaluating the pharmacokinetic (PK) profile and preliminary antitumor activity of HF50.

Eligibility criteria

Qualifiers

Participants must voluntarily provide written informed consent (ICF) prior to any study-related procedures, and be capable of complying with all protocol requirements.

Adult participants aged between 18 and 75 years (inclusive) at the time of ICF signing.

Histologically or cytologically confirmed advanced HER-2 positive or HER-2 low-expression solid tumors that are unresectable, metastatic, or have relapsed after standard therapies, are intolerant to standard therapies (e.g., chemotherapy, targeted therapy), or lack effective treatment options.

Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

Disqualifiers

History of active autoimmune disease or autoimmune disease considered unsuitable for study participation, with exceptions for localized skin conditions (e.g., eczema involving <10% of body surface area, vitiligo, psoriasis, alopecia) or childhood asthma resolved without treatment in adulthood.

Current use of immunosuppressants or systemic corticosteroids (>10 mg/day prednisone or equivalent) within 4 weeks prior to the first dose, except for local steroid use.

Receipt of systemic chemotherapy, radiotherapy, targeted therapy, or immunotherapy less than 2 weeks (or 4 weeks for nitrosourea or mitomycin C) or within 5 half-lives of the prior therapy before the first dose.

Symptomatic brain metastases or leptomeningeal disease unless adequately treated (e.g., surgery or radiotherapy) with no evidence of progression for ≥28 days and off systemic steroids for ≥14 days prior to the first dose.

Trial design

Treatments tested in this trial

  • HF50

Treatment groups

10 Participants
are divided into 4 treatment groups