A Prospective, Multicenter, Phase Ib/II Trial of Ivonescimab (AK112) Combined with Albumin-Paclitaxel and Cisplatin as Neoadjuvant Therapy for Resectable, Locally Advanced Esophageal Squamous Cell Carcinoma
Informed Consent: Written informed consent must be obtained before any study-related procedures are initiated.
Age and Gender: Participants must be between 18 and 75 years of age, inclusive of both 18 and 75 years, and may be either male or female.
Diagnosis and Stage: Participants must be histologically confirmed to have resectable, locally advanced esophageal squamous cell carcinoma (ESCC) with the following criteria:-T1 N1-N3 M0 or T2-T4a N0-N3 M0 (with T2 ≥ 2 cm or poorly differentiated).
Lymph Node Status: No suspicious lymph nodes in the neck region (excluding lymph nodes in the upper thoracic esophageal area) as per neck ultrasound or enhanced CT scan; no evidence of systemic metastasis on imaging.
History of Other Malignancies: Participants who have had any other malignancy within 5 years prior to enrollment are excluded, except for those with localized or in situ malignancies such as basal or squamous cell carcinoma, superficial bladder cancer, cervical or breast intraepithelial neoplasia, or other conditions that are considered curable with local therapy.
Prior Treatment with PD-1/PD-L1 Inhibitors or Other Immune-Modulating Drugs: Participants who have previously received treatment with PD-1/PD-L1 inhibitors or other drugs targeting T-cell receptors (e.g., CTLA-4, OX-40) or anti-angiogenic agents (e.g., bevacizumab, endostar) are excluded.
Systemic Non-Specific Immune Modulation: Participants who have received systemic non-specific immune-modulating therapy (e.g., interleukins, interferons, thymopentin) within 2 weeks prior to the first dose of study drug, or who have used traditional Chinese medicine or herbal preparations with anti-tumor indications within 2 weeks prior to the first dose, are excluded.
Active Autoimmune Disease Requiring Systemic Treatment: Participants with active autoimmune diseases requiring systemic treatment (e.g., using disease-modifying antirheumatic drugs, corticosteroids, or immunosuppressants) are excluded. Substitutive treatments (e.g., thyroid hormone, insulin, or physiological corticosteroids for adrenal or pituitary insufficiency) are not considered as systemic treatment.