Adebrelimab in Combination With Apatinib and Chemotherapy/Chemoradiotherapy in Immuno-experienced Second-line ESCC.

Adebrelimab 1200mg，d1，q3w, until disease progression or unacceptable toxicity

Apatinib 250mg，d1-21，q3w, until disease progression or unacceptable toxicity

"Nab-paclitaxel: 125mg/m2 intravenously, D1, D8, q3w, 4-6 cycles;Intravenous infusion of 100 mg, D1, qw is used at the same time as radiotherapy.~Ilinotecan: 125mg/m2 intravenously, D1, D8, q3w, 4-6 cycles; Capecitabine, 625 mg/m2 orally, d1-14, q3w; continued until disease progression, intolerable toxicity, or withdrawal due to other reasons; when synchronized with radiotherapy, 625mg/m2, bid, oral, d1-5, qw."

Radiotherapy mode: IMRT for the primary lesion and SBRT for the metastasis; If the patient has symptoms of dysphagia, the radiation dose is 1.8 Gy×28 F or 2 Gy×25 F, d1-5 5 times a week; If oligometastatic lesions occur in the body: the radiation dose is 8 Gy×5F, d1-5; If oligometastatic lesions occur in the brain, the radiation dose is 7 Gy×5F, d1-5.