Prevention and Treatment of CINV Caused by TC Regimen in Gynecological Malignant Tumor Patients

The risk of vomiting caused by high-dose carboplatin is controversial, and there is currently no prevention of TC in patients with gynecological malignant tumors High-level evidence-based medical evidence for programme-induced CINV. Therefore, different guidelines recommend the best antiemetic regimen as well It's different. This study is intended to conduct a prospective, multicenter, randomized, double-blind, placebo-controlled, crossover study The designed Phase III clinical study provides important data and basis for clinical practice and guideline formulation.

In this prospective, multicenter, double-blind, placebo-controlled, crossover phase III trial, patients with gynecologic malignancies scheduled for at least two cycles of TC were randomly assigned to receive aprepitant or placebo with ondansetron and dexamethasone during cycle 1, crossing over to the alternate regimen in cycle 2. The primary endpoint was complete response (CR: no emesis, no significant nausea and no rescue therapy) in the delayed phase (24-168 hours). Secondary endpoints included CR in acute and overall phases, nausea severity, rescue medication use, adverse events, and patient satisfaction.

Eligibility criteria: histologically confirmed gynecologic malignancies (including newly diagnosed cases and recurrent cases without chemo- or radiotherapy within the past six months); age 20-75 years; ECOG performance status 0-2; scheduled to receive at least two cycles of paclitaxel (175 mg/m²) plus carboplatin (AUC 5-6) every 3 weeks; and adequate organ function (bilirubin and creatinine within normal range, ALT and AST < 2× upper limit of normal).

Exclusion criteria

included prior chemotherapy, radiotherapy, or targeted therapy for the current recurrence; known brain metastases or history of brain tumors; history of gastrointestinal malignancy or major gastrointestinal surgery (except polypectomy or appendectomy); incomplete bowel obstruction; vestibular dysfunction; massive ascites (unless drained); concomitant opioid use; or diabetes mellitus.