This is an open, multicenter phase Ib/II clinical study. The goal of this study is to confirm the Phase II recommended dose (RP2D) of AK129 combinations for advanced solid tumors and evaluate the safety and efficacy of AK129 combinations for non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), colorectal adenocarcinoma (CRC), and other advanced solid tumors.
Be able and willing to provide written informed consent and to comply with all requirements of study participation (including all study procedures);
≥18 years old and ≤ 75 years (regardless of sex);
ECOG performance status 0-1;
Life expectancy longer than 3 months;
Histologically or cytologically confirmed the presence of small cell carcinoma components/EGFR-sensitive mutations or ALK fusion positivite/known ROS1 rearrangement, MET exon 14 skipping mutation, EGFR exon 20 insertion mutation, BRAF V600E mutation, NTRK gene fusion positivite or RET gene fusion positivite;
Histologically or cytologically confirmed diagnosis of advanced colorectal adenocarcinoma with microsatellite highly unstable/mismatch repair gene expression defect (MSI-H/dMMR)or histopathological examination confirmed other pathological types;
Participating in another clinical research;
Has known active central nervous system (CNS) metastases, brain stem/meningeal metastasis, spinal cord metastasis or compression;
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Treatment groupsSee each treatment group below.