PD-1 Inhibitor

This phase I study aims to investigate the safety and efficacy of whole brain low dose radiotherapy (WB-LDRT) combined with ICI and intrathecal chemotherapy for treatment of refractory meningeal metastasis of lung cancer.

Esophageal squamous cell carcinoma (ESCC) is a common malignant tumor worldwide, with particularly high incidence in East Asian regions such as China, and is associated with poor patient prognosis. In recent years, immune checkpoint inhibitors (e.g., anti-PD-1/PD-L1 antibodies) combined with chemotherapy have become the standard first-line treatment for advanced ESCC. Multiple randomized controlled trials have confirmed that this combination significantly improves patient survival compared to chemotherapy alone. However, a subset of patients still exhibit poor response or develop resistance to the immunotherapy-chemotherapy regimen, necessitating the exploration of novel combination strategies to further enhance efficacy. The epidermal growth factor receptor (EGFR) is frequently overexpressed in ESCC and is associated with tumor proliferation, metastasis, and poor prognosis, making it an important therapeutic target. Antibody-drug conjugates (ADCs) targeting EGFR achieve precise tumor killing by conjugating an anti-EGFR antibody to a potent cytotoxic payload. Preclinical studies have demonstrated significant antitumor activity of EGFR ADCs in ESCC models. Mechanistically, anti-EGFR therapy and immune checkpoint inhibitor therapy may exert synergistic effects through several avenues: enhancing tumor antigen presentation, remodeling the tumor microenvironment, and modulating PD-L1 expression. Therefore, this triple combination strategy holds promise for overcoming the limitations of monotherapies and providing a new treatment option for patients with ESCC.

This study aims to evaluate the efficacy (pathological complete response rate) of short-course radiotherapy with preservation of tumor-draining lymph nodes followed by sequential PD-1 inhibitor neoadjuvant therapy in patients with stage II-III pMMR/MSS locally advanced rectal cancer.

To investigate the activating effect of local lesion low-dose radiotherapy (2Gy) on the tumor immune microenvironment, and the efficacy, safety, and feasibility of its combination with pembrolizumab and standard therapy in patients with advanced pancreatic cancer. Concurrently, to preliminarily establish an efficacy prediction model for the early identification of patient populations who would benefit from the treatment, thereby providing a theoretical foundation for the implementation of precision medicine.

This study is designed as an open-label, single-arm, single-center, phase II clinical trial, aiming to evaluate the efficacy of nephron-sparing treatment combining Tislelizumab and Nab-Paclitaxel for HER-2 expressing renal pelvic cancer (RPC) . Patients enrolled will receive 2-3 cycles of Tislelizumab in combination with Nab-Paclitaxel every 3 weeks and then undergo evaluation. Patients who achieve all of the following criteria of "well response and tolerance" will receive further maintenance treatment: (1)The patient achieves a complete response (CR) or partial response (PR) according to the RECIST 1.1 criteria, indicating that the tumor is well-controlled. (2) If the patient has residual lesions, it should be confirmed by the clinical physician that these lesions can be eliminated through laser ablation via ureteroscopy. (3)The patient has not experienced any treatment-related adverse events (TRAEs) that warrant discontinuation of therapy during systemic treatment. (4)The patient is willing to undergo further maintenance therapy. If the patient meets all the criteria above, ureteroscopic biopsy should be performed. If residual lesions are detected under the ureteroscope, endoscopic intervention (e.g., laser ablation, cryoablation) should be carried out simultaneously to eliminate these residual lesions. Patients who meet the above criteria will proceed with no less than 2 cycles of maintenance systemic therapy (Tislelizumab + Nab-Paclitaxel). Patients who do not meet the criteria will be excluded from the study and are recommended to undergo salvage radical nephroureterectomy (RNU) as soon as possible. One-year Nephron-Sparing Survival (1 year-NSS): Defined as the absence of surgical indications for nephrectomy due to progression or recurrence of upper urinary tract urothelial carcinoma, distant metastasis caused by the primary upper urinary tract tumor, or death from any cause within 1 year from the initiation of treatment. Treatment-related adverse events (TRAEs) will be recorded and evaluated according to CTCAE 5.0.

This study is designed as an open-label, single-arm, single center, phase II clinical trial, aiming to evaluate the efficacy of neoadjuvant Tislelizumab combined with Nab-Paclitaxel for patients with non-metastatic upper tract urothelial carcinoma (UTC). Patients enrolled will receive 2-3 cycles of Tislelizumab in combination with Nab-Paclitaxel every 3 weeks and then undergo radical nephroureterectomy (RNU). The assessment of efficacy is based on the histology of specimen from RNU, and treatment-related adverse events (TRAEs) will be recorded and evaluated according to CTCAE 5.0.

This study is a prospective, multicenter, single-arm clinical trial designed to evaluate the efficacy and safety of PD-1 inhibitor combined with tenofovir, chidamide, and lenalidomide in the treatment of relapsed or refractory Epstein-Barr virus (EBV)-associated lymphoproliferative disorders (LPDs). The primary endpoint is the overall response rate (ORR) at 3 months, including complete response (CR) and partial response (PR). Secondary endpoints include overall survival (OS), progression-free survival (PFS), as well as safety and tolerability assessments. Eligible patients must have histologically confirmed EBV-positive B-cell or T/NK-cell LPDs with measurable lesions. This combination regimen targets multiple mechanisms, including inhibition of EBV replication, activation of the immune system, and enhancement of antitumor effects, aiming to provide an innovative therapeutic strategy for this challenging disease.

Currently, treatment options for Epstein-Barr virus (EBV) infection are limited, with unsatisfactory efficacy and no established standard therapy. Therefore, our center is conducting a prospective, multicenter, single-arm clinical trial to evaluate the efficacy and safety of PD-1 inhibitor in combination with tenofovir, chidamide, and lenalidomide in patients with EBV infectious diseases, aiming to provide a more effective and safer therapeutic option for EBV infectious diseases.

This study is designed as an open-label, single-arm, single-center, phase II clinical trial, aiming to evaluate the efficacy and safety of neoadjuvant Tislelizumab combined with Nab-Paclitaxel followed by distal ureterectomy for patients with non-metastatic ureteral cancer (UTC). Patients enrolled will receive 2-3 cycles of Tislelizumab in combination with Nab-Paclitaxel every 3 weeks and then undergo distal ureterectomy (DU). The assessment of efficacy is based on the histology of specimen from DU, and treatment-related adverse events (TRAEs) will be recorded and evaluated according to CTCAE 5.0.

This prospective, phase II, multicenter, randomized controlled study aims to compare the complete response rate and long-term survival outcomes of two-cycle and three-cycle induction therapy with modified TPF regimens combined with camrelizumab in patients with locally advanced nasopharyngeal carcinoma.

This phase I/II study is to evaluate the recommended dose, safety, feasibility, and therapeutic response of intrathecal dual checkpoint inhibitor (targeting PD-1 and CTLA-4 with QL1706) in combination with pemetrexed in patients with leptomeningeal metastasis.

This study was designed to explore the efficacy and safety of fruquintinib combined with tislelizumab and FOLFOX regimen as the first treatment (first-line) for adults diagnosed with locally advanced unresectable or metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma.

Hepatic arterial infusion chemotherapy (HAIC) plus lenvatinib and programmed cell death protein-1 (PD-1) inhibitor have shown promising results for advanced hepatocellular carcinoma (HCC). However, the evidence for infiltrative is limited. In this study, we aimed to describe the efficacy and safety of lenvatinib and PD-1 inhibitor with HAIC plus lenvatinib for infiltrative HCC.

The aim of this study was to investigate the efficacy and safety of pembrolizumab combined with albumin paclitaxel and cisplatin versus albumin paclitaxel and cisplatin or 5-fluorouracil and cisplatin in neoadjuvant therapy for stage II-IVa resectable esophageal squamous cell carcinoma. The study plans to enroll 114 eligible patients who will be randomly assigned in a 1:1:1 ratio to receive 3 cycles of neoadjuvant immunochemotherapy (pembrolizumab plus albumin paclitaxel and cisplatin;Pembrolizumab plus 5-fluorouracil and cisplatin) or chemotherapy alone (5-fluorouracil and cisplatin), followed by surgery 3 weeks later, followed by 16 cycles of adjuvant immunotherapy (pembrolizumab).Patients were followed up for efficacy and safety during treatment.Tumor evaluation will be performed at screening, after neoadjuvant therapy, before surgery, and after adjuvant therapy until objective disease progression is confirmed.

200 patients with advanced esophageal cancer who received PD-1 monoclonal antibody treatment would be enrolled in this study. Changes in peripheral blood immune cells before and after treatment would be recorded and used for machine learning to establish a prediction model for the efficacy of PD-1 monoclonal antibody treatment.

This is a single-arm, multicenter, prospective, open-label phase II clinical trial of multi-target radiotherapy combined with PD-1 monoclonal antibody and capecitabine maintenance therapy treating oligometastatic nasopharyngeal carcinoma, the main purpose of which is to evaluate the efficacy of multi-target radiotherapy combined with PD-1 monoclonal antibody and capecitabine maintenance therapy regimen in treating oligometastatic nasopharyngeal carcinoma.