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OncoMatch/Clinical Trials/NCT06099821

KN046 Plus Regorafenib or Apatinib in MSI-H Digestive System Cancers Resistant to PD-1/PD-L1 Blockade

Is NCT06099821 recruiting? Yes, currently enrolling (Jun 2026). This Phase 2 trial studies multiple treatments including KN046 and Regorafenib for digestive system cancers.

Phase 2RecruitingPeking University Cancer Hospital & InstituteNCT06099821Data as of Jun 2026Location: China

Treatment: KN046 · Regorafenib · ApatinibThe study is an interventional phase II clinical trial aiming to evaluate the efficacy and safety of KN046, a PD-L1 and CTLA-4 bispecific antibody, in combination with regorafenib or apatinib for microsatellite instability-high digestive system cancers resistant to PD-1/PD-L1 blockade. KN046 plus regorafenib will be given for patients with colorectal cancers, and KN046 plus apatinib will be given for patients with gastric cancers (including esophageal-gastric junction cancers) and other kinds of digestive system cancers.

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Extracted eligibility criteria

Treatments studied

Targeted therapy

RegorafenibApatinib

Other

KN046

Biomarker criteria

Required: MSH2 deficient mismatch repair

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade

Required: MSH6 deficient mismatch repair

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade

Required: MLH1 deficient mismatch repair

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade

Required: PMS2 deficient mismatch repair

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade

Required: MSI high microsatellite instability

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade. MSI status should be confirmed by PCR or NGS.

Performance status

ECOG 0–1(Restricted strenuous activity)

Prior therapy

Must have received: anti-PD-1 therapy

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade

Must have received: anti-PD-L1 therapy

dMMR/MSI-H cancers resistant to PD1/PDL1 blockade

Cannot have received: immune checkpoint inhibitor in combination with anti-VEGF tyrosine kinase inhibitor (Regorafenib, Apatinib, Sulfatinib, Anlctinib)

Previous treatment with any immune checkpoint inhibitors in combination with anti-VEGF tyrosine kinase inhibitor, including but not limited to Regorafenib, Apatinib, Sulfatinib and Anlctinib.

Lab requirements

Blood counts

HGB ≥ 80g/L, NEU ≥ 1.0×10^9/L, PLT ≥ 75×10^9/L

Kidney function

Cr≤1.5×ULN or CrCl≥50mL/min (Cockcroft-Gault method)

Liver function

TBiL ≤ 1.5×ULN, ALT and AST ≤3 ×ULN; for patients with liver metastasis ALT and AST ≤5 ×ULN

Cardiac function

INR, APTT, PT ≤ 1.5 ×ULN

Within the first 7 days of initial dosing, subjects should have good organ function: HGB ≥ 80g/L, NEU ≥ 1.0*10^9/L, PLT ≥ 75*10^9/L, Cr≤1.5×ULN or CrCl≥50mL/min(Cockcroft-Gault method), TBiL ≤ 1.5×ULN, ALT and AST ≤3 ×ULN; for patients with liver metastasis ALT and AST ≤5 ×ULN, urine protein <2+;,if urine protein ≥ 2+, 24 hour urinary protein quantity <2g; INR, APTT, PT ≤ 1.5 ×ULN

Structured fields extracted by AI. May contain errors — verify against the official protocol.

Frequently asked questions

Is NCT06099821 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior immune checkpoint inhibitor in combination with anti-VEGF tyrosine kinase inhibitor disqualifies patients from enrollment.

Does this trial require MSH2?

Yes, MSH2 deficient mismatch repair is a required biomarker for enrollment.

Does this trial require MSH6?

Yes, MSH6 deficient mismatch repair is a required biomarker for enrollment.

Does this trial require MLH1?

Yes, MLH1 deficient mismatch repair is a required biomarker for enrollment.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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