This study is a phase Ib/II, single arm study with main purpose to evaluate the safety, tolerability and efficacy of intrapleural administration of bevacizumab and camrelizumab in subjects with malignant pleural effusion.~The study aims to recruit 9 - 15 subjects in phase 1, and once the safety, tolerability and the preliminary efficacy of bevacizumab and camrelizumab reach an optimal target exposure for recommended dose (RD), phase 2a will be opened for enrolment of approximately 40 subjects
Patients with a variety of malignancies can develop malignant pleural effusion (MPE). MPE can cause significant symptoms and result in a marked decrease in quality of life and a poor prognosis. MPE is primarily considered as an immune and vascular manifestation of pleural metastases. The combined use of anti-angiogenic therapy and immunotherapy may be a promising strategy for MPE.~This is a Phase Ib/II clinical trial to evaluate the safety and tolerability of administering bevacizumab and camrelizumab into the intrapleural space of subjects with malignant pleural effusion through a pleurX catheter.