Objective:To provide suggestions for improving the examination of second medical use in-ventions of drugs in China.Method:Tracing back the origin,development,and termination of Swiss type claims in Europe,exploring the essence of Swiss type claims,and analyzing the drug administration char-acteristics of Swiss type claims from the perspectives of review theory,China's pharmaceutical industry de-velopment and clinical reality.Results:The protection of the drug delivery characteristics of the invention for the second medical use is a global development trend,and creative labor to improve drug delivery characteristics should be protected.Conclusion:In order to stimulate the development of China's pharma-ceutical industry,it is recommended to strengthen the protection of Swiss-type claims in China.
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