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A Phase I Multicentre Randomized Double-Blind Parallel-Controlled Study of HLX05-N vs. ERBITUX® in Metastatic Colorectal Cancer

NCT07543471 · Status: NOT_YET_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 387

Last updated 2026-04-24

No results posted yet for this study

Summary

This is a multicentre, randomized, double-blind, parallel-controlled Phase 1 clinical study designed to evaluate the pharmacokinetic (PK) similarity, efficacy, safety, and immunogenicity of HLX05-N compared with US-sourced ERBITUX® and EU-sourced ERBITUX® in participants with metastatic colorectal cancer (mCRC) with wild-type KRAS/NRAS and no BRAF V600E mutation.

Approximately 387 participants will be randomized in a 1:1:1 ratio to receive HLX05-N, US-ERBITUX®, or EU-ERBITUX®. Randomization will be stratified by Eastern Cooperative Oncology Group (ECOG) performance status (0 vs. 1) and sex (male vs. female).

During the treatment period, participants will receive study treatment in combination with mFOLFOX6 chemotherapy. For the first 3 treatment cycles, participants will receive HLX05-N or US-/EU-ERBITUX® plus chemotherapy according to randomized assignment. After completion of the initial 3 cycles, participants originally assigned to the US-ERBITUX® or EU-ERBITUX® arms will switch, in a blinded manner, to HLX05-N 250 mg/m² administered in combination with chemotherapy on Day 1 of each cycle. Study treatment will continue until investigator-assessed disease progression, death, initiation of new anti-tumor therapy, unacceptable toxicity, withdrawal of informed consent, study termination, or 1 year after randomization, whichever occurs first.

For participants with disease response or stable disease after 12 cycles of treatment, oxaliplatin may be discontinued, and maintenance therapy with cetuximab in combination with leucovorin and 5-fluorouracil may continue. Participants who continue to benefit from treatment after 1 year following randomization may receive subsequent therapy according to local clinical practice.

PK and anti-drug antibody (ADA) samples will be collected from all participants to assess PK characteristics and immunogenicity. An end-of-treatment visit will be performed within 7 days after treatment discontinuation. Safety follow-up will be conducted 30 days after the last dose, with an additional telephone safety follow-up at 12 weeks after the last dose. Survival follow-up will continue for up to 1 year after randomization.

Conditions

Interventions

DRUG

Cetuximab

400 mg/m2 administered as about 120-minute intravenous infusion on the first day of treatment. If the first infusion is well tolerated, then 250 mg/m2 intravenous infusion in about 1 hour weekly

DRUG

mFOLFOX6

Oxaliplatin, Leucovorin, 5-FU

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-30
Primary Completion
2027-06-30
Completion
2028-04-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07543471 on ClinicalTrials.gov