PMID- 36564539 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230111 IS - 2191-1991 (Print) IS - 2191-1991 (Electronic) IS - 2191-1991 (Linking) VI - 12 IP - 1 DP - 2022 Dec 24 TI - Health state utility values for metastatic pancreatic cancer using a composite time trade-off based on the vignette-based approach in Japan. PG - 63 LID - 10.1186/s13561-022-00413-8 [doi] LID - 63 AB - BACKGROUNDS: Limited information is available on the utility values of metastatic pancreatic cancer, focusing on different health statuses, selected chemotherapy, and related grades 1/2 and 3/4 adverse events (AEs). We evaluated Japanese societal-based health-related utility values for metastatic pancreatic cancer by considering different grade toxicities commonly associated with chemotherapy using the vignette-based method. METHODS: We developed health status scenarios for patients with metastatic pancreatic cancer undergoing chemotherapy and conducted utility research using the developed scenarios in four steps: 'literature review,' 'exploratory interview,' 'content validation', and 'utility research'. In the development process, to consider the impact of AEs of chemotherapy for metastatic pancreatic cancer on health state utility values, we selected neutropenia, febrile neutropenia, diarrhea, nausea and vomiting, and neuropathy as representative AEs. Each AE was classified as either grade 1/2 or 3/4. We confirmed our created scenarios through cognitive interviews with the general population and clinical experts to validate the content. Finally, we developed 11 scenarios for using 'utility research,' evaluated in a societal-based valuation study using the face-to-face method. Participants for 'utility research' were the general population, and they evaluated these scenarios in the composite time trade-off (cTTO) and visual analog scale (VAS) of the European quality of life (EuroQol) valuation technology to derive health state utility scores. RESULTS: Of 220 responders who completed this survey, 201 were adapted into the analysis population. Stable disease with no AEs (reference state) had a mean utility value of 0.653 using cTTO. The lowest mean utility score in the stable state was 0.242 (stable disease + grade 3/4 vomiting). VAS results ranged from 0.189 to 0.468, depending on the various grades of AEs in stable disease. In addition, grade 3/4 AEs and grade 1/2 nausea/vomiting were associated with significantly greater disutility. Utility values were also strongly influenced by the direct impact of AE on physical symptoms, severity and their experience. In addition, 95.9% of the respondents agreed that they understood the questions in the post-response questionnaire. CONCLUSIONS: We clarified the health state utility values of patients with metastatic pancreatic cancer based on the general population in Japan. The effect on utilities should be considered not only for serious AEs, but also for minor AEs. CI - (c) 2022. The Author(s). FAU - Takumoto, Yuki AU - Takumoto Y AD - Department of Public Health and Epidemiology, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, Japan. AD - Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, Saitama, Japan. FAU - Sasahara, Yuriko AU - Sasahara Y AD - Department of Medical Oncology, Yamagata Prefectural Central Hospital, Yamagata, Japan. FAU - Narimatsu, Hiroto AU - Narimatsu H AD - Department of Genetic Medicine, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan. AD - Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center Research Institute, Yokohama, Kanagawa, Japan. AD - Graduate School of Health Innovation, Kanagawa University of Human Services, Yokohama, Kanagawa, Japan. FAU - Murata, Tatsunori AU - Murata T AD - CRECON Medical Assessment Inc, Tokyo, Japan. FAU - Akazawa, Manabu AU - Akazawa M AUID- ORCID: 0000-0002-4112-6035 AD - Department of Public Health and Epidemiology, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, Japan. makazawa@my-pharm.ac.jp. LA - eng GR - 19H03874/JSPS KAKENHI/ PT - Journal Article DEP - 20221224 PL - Germany TA - Health Econ Rev JT - Health economics review JID - 101583209 EIN - Health Econ Rev. 2023 Jan 11;13(1):3. PMID: 36629978 PMC - PMC9789314 OTO - NOTNLM OT - Health related quality of life OT - Metastatic pancreatic cancer OT - Time trade-off OT - Utility OT - Vignette-based method COIS- Not applicable. EDAT- 2022/12/24 06:00 MHDA- 2022/12/24 06:01 PMCR- 2022/12/24 CRDT- 2022/12/23 23:37 PHST- 2022/06/28 00:00 [received] PHST- 2022/12/12 00:00 [accepted] PHST- 2022/12/23 23:37 [entrez] PHST- 2022/12/24 06:00 [pubmed] PHST- 2022/12/24 06:01 [medline] PHST- 2022/12/24 00:00 [pmc-release] AID - 10.1186/s13561-022-00413-8 [pii] AID - 413 [pii] AID - 10.1186/s13561-022-00413-8 [doi] PST - epublish SO - Health Econ Rev. 2022 Dec 24;12(1):63. doi: 10.1186/s13561-022-00413-8.