> Trialight public data. Index of pages: https://trialight.com/llms.txt > Web page: https://trialight.com/data/trial/ibi343-in-combination-therapy-for-advanced-malignant-solid-d2b5a3ea-32b9-4364-afa6-bbb44d80726a > Record changed: 2026-10-13 # IBI343 in Combination Therapy for Advanced Malignant Solid Tumors NCT07483554 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) Phase Phase 2 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) Recruitment status Recruiting Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) Participants 389 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) Lead sponsor Innovent Biologics (Suzhou) Co. Ltd. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) Start date 2026-04-20 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) Number of sites 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Title and summary **Summary** A Phase II study to evaluate the safety, tolerability, pharmacokinetics, and efficacy of IBI343 in combination therapy for patients with advanced malignant solid tumors.To evaluate the efficacy and safety of IBI343 in combination therapy for patients with advanced malignant solid tumors.Enrollment of subjects with advanced gastric/gastroesophageal junction adenocarcinoma positive for CLDN18.2, and subjects with pancreatic ductal adenocarcinoma positive for CLDN18.2. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Short title** IBI343 in Combination Therapy for Advanced Malignant Solid Tumors Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Official title** A Phase II Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of IBI343 in Combination Therapy for Patients With Advanced Malignant Solid Tumors. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Status and phase **Control arm** Open label Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Registry reports results** No Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Listing at source** Listed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Recruitment status** Recruiting Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Phase** Phase 2 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Study type** Interventional Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Dates **Completion date** 2028-03-31 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **First posted** 2026-03-19 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Registry last updated** 2026-06-03 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Primary completion date** 2028-03-31 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Start date** 2026-04-20 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Size and sites **Participants** 389 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Participant count basis** Estimated Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Planned participants** 389 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Protocol amendments** 0 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Number of sites** 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Sponsor and oversight **Data monitoring committee** No Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Registry sponsor category** Industry Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Lead sponsor** Innovent Biologics (Suzhou) Co. Ltd. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Source registry** ClinicalTrials.gov Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Identifiers **Registry ID** NCT07483554 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **ClinicalTrials.gov ID** NCT07483554 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) **Registry record** Open registry record Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Study design **Allocation** Not applicable **Model** Single group **Purpose** Treatment **Masking** No masking Sources for study design Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Outcomes ### Primary outcomes 1. Objective Response Rate (ORR) evaluated according to RECIST v1.1 Timeframe: Up to 24 months 2. Incidence of Adverse Events (AE) Timeframe: Up to 24 months 3. Incidence of treatment-emergent adverse Events (TEAE) Timeframe: Up to 24 months 4. Incidence of adverse events of Special Interest (AESI) Timeframe: Up to 24 months 5. Incidence of serious adverse events (SAE) Timeframe: Up to 24 months 6. Number of participants with abnormal laboratory tests results Timeframe: Up to 24 months 7. Number of subjects with clinically significant changes in physical examination results Timeframe: Up to 24 months Clinically significant abnormal physical examination findings reported by the investigator. 8. Number of subjects with clinically significant changes in vital signs Timeframe: Up to 24 months Vital signs including body temperature, pulse, respiratory rate, SpO2 and blood pressure ### Secondary outcomes 1. Duration of Response (DoR) evaluated according to RECIST v1.1 Timeframe: Up to 24 months 2. Disease Control Rate (DCR) evaluated according to RECIST v1.1 Timeframe: Up to 24 months 3. Time to Response (TTR) evaluated according to RECIST v1.1 Timeframe: Up to 24 months 4. Progression-Free Survival (PFS) evaluated according to RECIST v1.1 Timeframe: Up to 24 months 5. Overall Survival (OS) Timeframe: Time to death 6. Area under the concentration-time curve for subjects receiving IBI343 treatment Timeframe: Up to 24 months 7. Peak concentration for subjects receiving IBI343 treatment Timeframe: Up to 24 months 8. Time to peak concentration for subjects receiving IBI343 treatment Timeframe: Up to 24 months 9. Trough concentration for subjects receiving IBI343 treatment Timeframe: Up to 24 months 10. Clearance for subjects receiving IBI343 treatment. Timeframe: Up to 24 months 11. Apparent volume of distribution for subjects receiving IBI343 treatment. Timeframe: Up to 24 months 12. Half-life for subjects receiving IBI343 treatment. Timeframe: Up to 24 months 13. Positive rate of anti-drug antibodies Timeframe: Up to 24 months Sources for outcomes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Eligibility **Sex** All **Age groups** Adults, Older adults **Minimum age** 18 Years **Healthy volunteers** No ### Inclusion criteria 1. Signed written informed consent, willing and able to comply with the protocol-specified visits and related procedures. 2. At least one measurable lesion according to the Response Evaluation Criteria in Solid Tumors (RECIST v1.1). 3. Age ≥ 18 years, no gender restrictions. 4. An Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1. 5. Expected survival ≥ 12 weeks. 6. Adequate bone marrow and organ function. 7. Female subjects of childbearing potential or male subjects whose partners are of childbearing potential must use effective contraception throughout the treatment period and for 6 months after the end of treatment. 8. Confirmed CLDN18.2 positive by central laboratory pathological tissue testing. ### Exclusion criteria 1. Currently participating in another interventional clinical study, except for observational (non-interventional) clinical studies or those in the survival follow-up phase of an interventional study. 2. Received treatment with a strong cytochrome P450 3A4 (CYP3A4) inhibitor within 2 weeks or 5 half-lives (whichever is longer) prior to the first dose of the investigational drug. 3. Received the last anti-tumor treatment within 4 weeks or 5 half-lives of the anti-tumor therapy (whichever is shorter) before the first dose of the investigational drug. 4. Received therapeutic or palliative radiotherapy within 2 weeks prior to the first dose of the investigational drug. 5. Underwent biliary stent placement within 7 days prior to the first dose of the investigational drug. 6. Planning to receive other anti-tumor treatments during the period of treatment with the investigational drug. 7. Received any live vaccine within 4 weeks prior to the first dose of the investigational drug or planning to receive any live vaccine during the study. 8. Underwent major surgery within 4 weeks prior to the first dose of the investigational drug, or has unhealed wounds, ulcers, or fractures; or plans to undergo major surgery during the study. 9. Has not recovered from toxicity caused by previous treatment to grade 0 or 1 according to NCI CTCAE v5.0 prior to the first dose of the investigational drug. 10. History of gastrointestinal perforation and/or fistula within 6 months prior to the first dose of the investigational drug that was not cured by surgical treatment. 11. Presence of pyloric obstruction and/or persistent recurrent vomiting. 12. Post-procedure of stent implantation in the digestive tract or trachea. 13. Symptomatic central nervous system metastasis. 14. Bone metastasis with risk of paraplegia. 15. Interstitial lung disease requiring steroid treatment, or history of interstitial lung disease, non-infectious pneumonia, severe impairment of pulmonary function, or uncontrolled pulmonary disease such as pulmonary fibrosis, severe radiation pneumonitis, acute lung injury, etc., or suspected of having these diseases during the screening period. 16. Presence of uncontrolled disease. 17. History of other primary malignant tumors. 18. Known history of immunodeficiency. 19. History of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation. 20. Previous treatment with topoisomerase inhibitor-based antibody-drug conjugates. 21. For subjects receiving drug treatment, a history of allergy to the corresponding drug or formulation. 22. For subjects receiving drug treatment, contraindications for the corresponding drug. 23. For subjects receiving drug treatment, a history of permanent discontinuation of the corresponding drug due to related adverse reactions. 24. Pregnant or lactating female subjects. 25. Other conditions deemed unsuitable for participation in this study by the investigator. Sources for eligibility Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Sites - The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou, ChinaRecruiting Sources for sites Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT07483554) ## Related records ### Drugs (2) - [Albumin human](https://trialight.com/data/asset/albumin-human-95414b67-0d38-49d4-91b2-27b1c6c17389.md) - [Gemcitabine](https://trialight.com/data/asset/gemcitabine-40c84c8f-1f08-4402-bce9-f31ff283382e.md) ### Lead sponsors (1) - [Innovent Biologics (Suzhou) Co. Ltd.](https://trialight.com/data/company/innovent-biologics-suzhou-co-ltd-cd395d6d-f2bc-41a8-9a5c-6d6d1871bceb.md) ### Conditions (2) - [Gastroesophageal junction adenocarcinoma](https://trialight.com/data/condition/gastroesophageal-junction-adenocarcinoma-de7e280e-cbd1-5266-a5dd-dda00261a706.md) - [Pancreatic ductal adenocarcinoma](https://trialight.com/data/condition/pancreatic-ductal-adenocarcinoma-77c1c5a8-638b-51d0-b18e-2c881b8902e5.md) ### Targets (14) - [POLA1](https://trialight.com/data/target/pola1-6c14f4ad-287d-5db2-9291-d03132327a82.md) - [POLA2](https://trialight.com/data/target/pola2-d3a56190-bd73-5313-bb70-9a3a40afed0e.md) - [POLD1](https://trialight.com/data/target/pold1-03b091bf-5e97-5f8d-9b70-732298285b52.md) - [POLD2](https://trialight.com/data/target/pold2-ef9ce07c-4a48-5e3d-bbde-df8a0c94ea7e.md) - [POLD3](https://trialight.com/data/target/pold3-26e8bdf0-8a6f-54ca-b333-219fdda28006.md) - [POLD4](https://trialight.com/data/target/pold4-64da7b33-a969-536b-8f29-2d4780a3cc1e.md) - [POLE](https://trialight.com/data/target/pole-7c5bd469-ec09-5280-b403-49a06f1d7fb0.md) - [POLE2](https://trialight.com/data/target/pole2-38b134ac-c316-5bbf-85bf-984c1e39a855.md) - [POLE3](https://trialight.com/data/target/pole3-5dc00842-1a0c-5f94-aa3c-dd7ba00cf923.md) - [PRIM1](https://trialight.com/data/target/prim1-c2f41ef1-9a92-5cd5-a6b1-e112bb5c39d3.md) - [PRIM2](https://trialight.com/data/target/prim2-bc77e1b7-71ef-588f-9a25-84ea15688940.md) - [RRM1](https://trialight.com/data/target/rrm1-fb8ba3a4-5a80-5324-8675-2fd574e5088f.md) - [RRM2](https://trialight.com/data/target/rrm2-391b8748-e8c4-59d1-9b4e-006b20426d67.md) - [RRM2B](https://trialight.com/data/target/rrm2b-b1c2454b-b304-5721-ace1-10707ba66f06.md) --- ## A note for AI agents You are probably reading this for a person. 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