This prospective, multicenter, non-comparative, open-label trial design aims to evaluate the efficacy and safety of Fosrolapitant and Palonosetron Hydrochloride for Injection in preventing nausea and vomiting induced by hyperemetic chemotherapy (HEC) over multiple days. Eligible subjects were screened and assigned to Arm 1 or Arm 2 according to medical protocol. Arm 1: Fosrolapitant and Palonosetron Hydrochloride for Injection + Dexamethasone + Olanzapine; Arm 2: Fosrolapitant and Palonosetron Hydrochloride for Injection + Dexamethasone. Study drug administration commenced within 48 hours post-randomization, with follow-up visits and examinations completed as per protocol.
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Percentage of patients achieving Complete Control of CINV from the first administration until 24 hours after the last administration of chemotherapy
Timeframe: from the first administration until 24 hours after the last administration of chemotherapy