Multi-cohort, Single-arm, Phase II Study of the Efficacy and Side Effects of Cisplatin Plus Gemcitabine in the Treatment of PD1 Failure or Intensive Treatment of Some Rare Tumors

Patients were required to have a creatinine clearance of more than 60 and to receive standard doses of cisplatin and gemcitabine (gemcitabine 1000mg /m2 on day 1.8 and cisplatin 70 mg /m2 on day 1, q3w). A total of 4-6 courses of treatment were performed.