Adebrelimab

This project is a prospective, multi-center, multi-cohort exploratory clinical study. It focuses on patients with advanced hepatocellular carcinoma who experience disease progression after first-line standard therapy. Based on different patterns of disease progression, patients will receive relevant systemic treatments, either with or without local interventional therapy. The primary endpoint is progression-free survival (PFS), while secondary endpoints include overall survival (OS), 1-year OS rate, objective response rate (ORR), disease control rate (DCR), duration of remission (DOR), and safety. Additionally, the study will explore the correlation between patients' clinical pathological characteristics, serum biomarkers, and clinical efficacy.

This study aims to evaluate the efficacy of SHR-8068 combined with Adebrelimab and Bevacizumab compared with Sintilimab combined with Bevacizumab for the first-line treatment of advanced HCC (KYLIN-02).

This study is a multicenter, prospective investigation aiming to evaluate the efficacy and safety of low-dose radiotherapy (15Gy/1.5 Gy bid × 10 fractions) combined with 4-6 cycles of systemic chemotherapy concurrently with Adebrelimab, followed by Adebrelimab maintenance therapy for up to two years, in subjects with extensive-stage small cell lung cancer (ES-SCLC). Additionally, immunohistochemical detection of the expression levels of four key transcriptional proteins-YAP1, NEUROD1, ASCL1, and POU2F3-will be performed to guide the molecular subtyping of SCLC. Based on these findings, we will explore the differential therapeutic outcomes of this regimen across distinct molecular subtypes (A/N/P/Y/I/AN/QN), with the goal of identifying the subject population most likely to benefit from this treatment modality, thereby optimizing clinical decision-making.

This is a single-arm, prospective, exploratory phase II clinical study. The study enrolled newly diagnosed stage T1-3N0-1M0 resectable limited-stage small cell lung cancer. Adebrelimab combined with chemotherapy for 4 cycles and apatinib mesylate for 3 cycles. Surgery was performed within 4-8 weeks after the above treatment (the operation was performed 4 weeks after apatinib was discontinued). According to the results of MDT discussion, adebrelimab combined with apatinib mesylate combined with or without radiotherapy was started 4 weeks after surgery. Preoperative prophylactic radiotherapy (PCI) is recommended for patients with preoperative stage N1. Patients with postoperative stage N1 received postoperative thoracic radiotherapy.

This study is a prospective, randomized, non-controlled, open-label clinical trial aimed at evaluating the efficacy and safety of adebrelimab combined with apatinib mesylate and albumin-bound paclitaxel, as well as apatinib mesylate combined with albumin-bound paclitaxel, in treating advanced second-line gastric adenocarcinoma or gastroesophageal junction adenocarcinoma. The study's primary endpoint is median progression-free survival (mPFS), and it plans to enroll 50 patients with gastric adenocarcinoma or gastroesophageal junction adenocarcinoma who failed first-line systemic therapy. This is a randomized, non-controlled, open-label trial. Eligible participants will be randomly assigned in a 1:1 ratio to receive either adebrelimab combined with apatinib mesylate and albumin-bound paclitaxel (Cohort 1) or apatinib mesylate combined with albumin-bound paclitaxel (Cohort 2). The screening phase is 28 days. After completing screening tests and assessments, eligible participants will be randomly assigned to the following treatments: Cohort 1: * Adebrelimab: 1200 mg, IV infusion, once every 21 days, until PD or intolerance, maximum use 2 years; * Apatinib mesylate: 250 mg, orally, once daily, days 1-21; until PD or intolerance, maximum use 2 years; * Albumin-bound paclitaxel: 200-260 mg/m², IV infusion, day 1, once every 21 days, for 4-6 cycles. Cohort 2: * Apatinib mesylate: 250 mg, orally, once daily, days 1-21; until PD or intolerance, maximum use 2 years; * Albumin-bound paclitaxel: 200-260 mg/m², IV infusion, day 1, once every 21 days, for 4-6 cycles.

A total of 120 patients with unresectable, locally advanced esophageal squamous cell carcinoma patients will be enrolled in this study and randomly divided into two groups. Arm A: After 2 cycles of induction adebrelimab plus chemotherapy, patients will be treated with concurrent chemoradiotherapy (50.4Gy/1.8Gy/28f), and adebrelimab will maintain to PD or for a maximum of 15 cycles. Arm B: Patients will be treated with concurrent chemoradiotherapy (50.4Gy/1.8Gy/28f) and adebrelimab will maintain to PD or for a maximum of 17 cycles. This study will compare the efficacy of immunotherapy in the induction and maintenance phases of radiotherapy, optimize more precise treatment plans, and potentially further increase the survival of ESCC patients.

Brief Summary A Phase II Single-Arm Clinical Trial of Short-Course Radiotherapy Combined with Adebrelimab and Platinum-Based Neoadjuvant Therapy for Locally Advanced Cervical Cancer Background \& Objective: This is a single-center, single-arm, Phase II clinical trial. The primary objective is to evaluate the pathological complete response (pCR) rate (defined as ypT0N0) following neoadjuvant therapy with short-course radiotherapy (SCRT) combined with Adebrelimab (an anti-PD-L1 monoclonal antibody) and single-agent platinum chemotherapy in patients with locally advanced cervical cancer (LACC). Study Design: Patients will receive SCRT followed by three cycles of neoadjuvant chemoimmunotherapy. After completion of neoadjuvant treatment, radical hysterectomy with pelvic lymphadenectomy (with or without para-aortic lymphadenectomy) will be performed. Outcome Measures: Primary Endpoint: Pathological Complete Response (pCR) rate assessed by a central pathologist. Secondary Endpoints: Objective Response Rate (ORR) and R0 resection rate (per RECIST 1.1). Event-Free Survival (EFS) and 2-year EFS rate. Incidence and severity of Treatment-Related Adverse Events (TRAEs, per NCI-CTCAE v5.0) and surgical complications (per Clavien-Dindo classification). Feasibility and implementation rate of different adjuvant treatment strategies based on postoperative risk stratification. Depth of response (major pathological response, MPR). Inclusion Criteria: Key eligibility criteria include: Newly diagnosed, histologically confirmed squamous cell carcinoma, adenocarcinoma, or adenosquamous carcinoma of the cervix. Clinical stage IB3-IIA2 or IIIA (without parametrial invasion) per FIGO 2018 staging. No evidence of extrapelvic lymph node metastasis or distant metastasis (confirmed by PET/CT or enhanced CT). Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.

Metastatic colorectal cancer with microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR) molecular phenotypes could significantly benefit from immune checkpoint inhibitor therapy, ushering in the MSI era of immunotherapy for colorectal cancer. However, MSI-H/dMMR is present in only 15%-20% of stage II/III and 5% of stage IV colorectal cancer patients, while the vast majority of patients exhibit microsatellite stability (MSS) or proficient mismatch repair (pMMR) types, which are insensitive to immunotherapy. Therefore, how to enhance the efficacy of immunotherapy in the pMMR/MSS population through combination therapy has become a hotspot and challenge in colorectal cancer research.

The study is being conducted to evaluate the safety, tolerability and efficacy of SHR-A2102/SHR-9839(sc) with Adebrelimab with or without other Antitumor Therapy in Subjects with Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma. To explore the reasonable dosage of SHR-A2102/SHR-9839（sc） for Subjects with Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma

Some studies have shown that approximately 15% of patients with advanced hormone receptor (HR) positive breast cancer and 1/3 of triple negative breast cancer will develop brain metastasis. At present, there is no unified drug treatment standard for HER2-negative breast cancer brain metastasis (BCBM). The evidence of single traditional chemotherapy drug as the main treatment of brain metastasis is not sufficient. Some exploratory studies on HER2-negative BCBM have shown that the central nervous system objective response rate (CNS-ORR) of anti-angiogenic drugs combined with chemotherapy is around 55%-80%。 Adebrelimab (a humanized PD-L1 monoclonal antibody) specifically blocks the binding of PD-1 and PD-L1, terminates the immunosuppressive signal produced by T cells, and makes T cells re-recognize tumor cells and kill them, thereby inhibiting tumor growth. In China, Adebelizumab has been approved for using in combination with chemotherapy as a first-line treatment for extensive stage small cell lung cancer. Apatinib (a small molecule VEGFR tyrosine kinase inhibitor) mainly plays an anti-angiogenic effect in the treatment of malignant tumors by inhibiting VEGFR. Apatinib has been approved monotherapy for advanced gastric adenocarcinoma or gastroesophageal junction adenocarcinoma that has progressed or relapsed after at least two systematic chemotherapies, advanced liver cancer that has failed or is intolerable after at least first-line systematic treatment, and first-line treatment in patients with unresectable or metastatic hepatocellular carcinoma combined with camrelizumab. Due to the lack of effective drug therapy for HER2-negative BCBM, a variety of treatment combinations are still being explored. We hypothesized that adebrelimab plus apatinib and etoposide is an explorable and effective treatment for HER2- negative BCBM.