KN026 Plus Chemotherapy ± KN-046 in HER2 Positive Colorectal Cancer and Biliary Carcinoma

Trial statusNot yet recruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorPeking University Cancer Hospital & Institute

About this trial

The goal of this Interventional clinical trial is to learn about the efficacy and safety of KN026 and chemotherapy ± KN046 in HER2-positive metastatic colorectal cancer and biliary tract cancer. Participants will receive standard first-line chemotherapy (capecitabine + oxaliplatin) combined with KN026 (a HER2-targeted bispecific antibody) ± KN046 (a PD-L1/CTLA-4 targeted bispecific antibody).

Eligibility criteria

Qualifiers

Participants are able to comprehend the informed consent information and sign the informed consent form.

Participants ≥ 18 years old, of any gender.

Cohorts A and B: Histologically confirmed unresectable HER2-positive metastatic colorectal cancer, meeting the following criteria: a) Previously untreated with systemic anti-tumor therapy, or the time from (neo)adjuvant chemotherapy completion to disease recurrence > 6 months; b) Gene sequencing shows wild-type RAS and BRAF (participants' previous KRAS and BRAF test results are acceptable).

Cohort C: Histologically confirmed unresectable HER2-positive biliary tract cancer, including intrahepatic or extrahepatic bile duct cancer or gallbladder cancer: a) Previously untreated with systemic anti-tumor therapy; b) If previously received (neo)adjuvant radiotherapy, the time from treatment completion to disease recurrence is > 6 months.

Disqualifiers

Subjects with untreated active brain metastases or leptomeningeal metastases; if subjects have received treatment for brain metastases and the lesions are stable (stable brain imaging for at least 4 weeks before the first dose with no evidence of new or enlarging brain lesions and no new neurological symptoms or stable neurological symptoms at baseline), they are allowed to be enrolled.

Ampullary carcinoma.

Previous history of receiving any systemic anticancer therapy for metastatic tumors or participation in interventional clinical trials.

Within 14 days before the first dose, the subject requires a continuous 7-day treatment of systemic corticosteroids (≥10 mg/day prednisone or equivalent of other corticosteroids) or immunosuppressive agents; exceptions are inhaled or locally applied corticosteroids or physiological replacement doses of corticosteroids for adrenal insufficiency. Short-term (≤7 days) corticosteroids are allowed for prevention (e.g., contrast dye allergy) or treatment of non-autoimmune conditions (e.g., delayed hypersensitivity reactions caused by exposure to allergens).

Trial design

Treatments tested in this trial

  • KN026
  • KN046
  • XELOX

Treatment groups

80 Participants
are divided into 3 treatment groups