Clinical Study on the Effect of Brucea Javanica Oil Emulsion Injection on the Survival of Patients With Advanced Colorectal Cancer Who Failed to Receive Multi-line Treatment

Drug: Brucea javanica oil emulsion injection Brucea javanica oil emulsion injection: intravenous drip, 30ml each time (add 250ml sterile physiological saline),once a day, 14 consecutive days as a cycle, at least 2 cycles completed. The best supportive treatment:According to the NCCN Best Palliative Treatment Guidelines (2022. V1), provide the best supportive treatment

The best supportive treatment:According to the NCCN Best Palliative Treatment Guidelines (2022. V1), provide the best supportive treatment