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A Randomized, Active-Controlled, Double-blind, Multicenter, Phase 3 Clinical Study of Ivonescimab in Combination with FOLFOX versus Bevacizumab in Combination with FOLFOX for the First-line Treatment of Metastatic Colorectal Cancer (HARMONi-GI3)

A Randomized, Active-Controlled, Double-blind, Multicenter, Phase 3 Clinical Study of Ivonescimab in Combination with FOLFOX versus Bevacizumab in Combination with FOLFOX for the First-line Treatment of Metastatic Colorectal Cancer (HARMONi-GI3)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031250629
Enrollment
50
Registered
2026-01-08
Start date
2026-04-10
Completion date
Unknown
Last updated
2026-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Colorectal Cancer

Interventions

Patients randomly assigned in a 1:1 ratio to the 2 treatment groups: - Group A: ivonescimab (20 mg/kg, every 2 weeks) + mFOLFOX6 (on Days 1, 2 of a 2-week treatment cycle) for 8 cycles followed by mai

Sponsors

Paranthaman Nindhana
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. An Eastern Cooperative Oncology Organization Group (ECOG) performance status score of 0 or 1. 2. Expected life expectancy is at least 6 months. 3. Patients with histologically or cytologically confirmed metastatic CRC, not amenable to curative resection. 4. No prior systemic therapy for metastatic CRC. 5. At least one measurable tumor lesion according to RECIST v1.1 that is amenable to repeated accurate measurements.

Exclusion criteria

Exclusion criteria: 1. Microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) disease 2. Known BRAF V600E mutant status 3. Current presence of significant radiographic or clinical manifestations of gastrointestinal (GI) obstruction. 4. Ascites requiring paracentesis within last 30 days. 5. Patients who have received prior immunotherapy or anti-angiogenic therapy for colorectal cancer, including immune checkpoint inhibitors, immune checkpoint agonists, immune cell therapy and any other therapy based on the mechanism of action of tumor immunity or angiogenesis. 6. Active or prior history of inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis, or chronic diarrhea). 7. Resectable oligometastastic only disease, with multidisciplinary plan for complete resection of all disease.

Design outcomes

Primary

MeasureTime frame
Progression-free survival (PFS) as assessed by blinded Independent Radiological Review Committee (IRRC) based on Response Evaluation Criteria in Solid Tumors (RECIST) v1.1

Secondary

MeasureTime frame
- OS - ORR and DOR as assessed by IRRC based on RECIST v1.1 - Safety assessment: incidence and severity of adverse events (AEs), clinically significant abnormal laboratory test results. - Pharmacokinetic profile: Serum concentrations of ivonescimab in patients at different time points after ivonescimab administration. - Immunogenicity assessment: Number and percentage of patients with detectable anti-ivonescimab antibody.

Countries

Belgium, Canada, Czechia, France, Germany, Hungary, Italy, Japan, Mexico, Poland, Serbia, Spain, United Kingdom, USA

Contacts

Public ContactHironori Taira

Syneos Health Japan K.K.

hironori.taira@syneoshealth.com+81-90-1790-0160

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: May 30, 2026