To explore the safety, tolerance and pharmacokinetic of KPCXM18 for injection in healthy subjects by intravenous administration of different doses in single and multiple administration safety, tolerance and pharmacokinetic tests, and to obtain the safe dose range of the test drugs, thus providing dose design basis for phase II clinical trials.
to assess the safety,Tolerability, and pharmacokinetic of KPCXM18 for injection in healthy subjects