Thephamongkhol K.Mahidol University2023-06-182023-06-182022-01-01Siriraj Medical Journal Vol.74 No.4 (2022) , 245-255https://repository.li.mahidol.ac.th/handle/20.500.14594/86567Objective: To compare tumor control and toxicity between tri-weekly chemotherapy and weekly platinum-based chemotherapy in locally advanced cervical cancer using the propensity score matching method. Materials and Methods: DESIGN: Retrospective cohort with propensity score matched population. SETTING: Four university hospitals. PARTICIPANTS: 781 advanced local cervical cancer patients. INTERVENTION: tri-weekly platinum-based chemoradiotherapy versus weekly chemoradiotherapy OUTCOMES: Overall survival (OS), local recurrence-free survival (LRFS), regional recurrence-free survival (RRFS), distant metastasis-free survival (DMFS), and toxicity, including hematological and renal toxicity. Results: Overall median follow-up time was 59.5 months. After the propensity score matching process was completed, 326 patients were analyzed (163 in each group). The five-year OS was 66% and 64% (p 0.630); five-year LRFS was 85% and 81% (p 0.209); five-year RRFS was 89% and 94% (p 0.307); and five-year DMFS was 75% and 79% (p 0.420) in the tri-weekly and weekly groups, respectively. The patients in the tri-weekly and the weekly group had grade 2 -3 neutropenia (10.5% vs 2.5%). The other toxicities appeared to be similar in both groups in terms of white blood count, platelet and creatinine. Conclusion: There was a potential small benefit of local control (4%) and overall survival (2%) with the tri-weekly regimen but we could not demonstrate statistical significance. However, this came at the price of an increase of 7% to 8% in grade 2-3 neutropenia.MedicineArticleSCOPUS10.33192/Smj.2022.312-s2.0-8512970113722288082