{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T18:56:27Z","timestamp":1792090587669,"version":"4.4.0"},"reference-count":67,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T00:00:00Z","timestamp":1757548800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vaccines"],"abstract":"<jats:p>Background\/Objectives: Although vaccinations are a priority for patients with cancer, achieving high coverage remains challenging. Evidence on effective strategies in oncology settings is still limited. This systematic review aimed to identify interventions to improve vaccination uptake or reduce hesitancy among cancer patients. Methods: A systematic search was conducted in PubMed, Embase, and Scopus, including studies published up to the end of 2023. The protocol was registered in PROSPERO (CRD42024511008). Results: Out of 10,927 non-duplicate records, 15 studies describing unique interventions were included. All studies were published between 2011 and 2022, primarily conducted in Europe\/UK (40%) and in North America (40%). The most common study design was pre-post (60%), and 33.3% included a control group. Most interventions were multi-component (60%) and were classified into three main categories: educational materials\/campaigns (46.7%), reminders (40%), and patient counselling (33.3%). Additional components included guideline development in two studies. Some studies also highlighted the importance of specific key figures, such as dedicated professionals, general practitioners, and pharmacists. Interventions mainly targeted patients (40%), with 33.3% addressing both healthcare professionals and patients and 26.7% professionals only. They most frequently concerned vaccinations against influenza and pneumococcal disease (26.7%), pneumococcal disease alone (26.7%), or Coronavirus Disease 2019 (COVID-19) (26.7%). Vaccination uptake was the primary outcome in 86.7% of studies, with 66.7% reporting significant improvements. Conclusions: This review identified a variety of strategies, with education, reminders, and counselling as key components. Multicomponent interventions and those involving both patients and providers were most promising. However, methodological limitations and limited generalizability highlighted the need for more rigorous research.<\/jats:p>","DOI":"10.3390\/vaccines13090964","type":"journal-article","created":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T15:10:46Z","timestamp":1757603446000},"page":"964","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Strategies to Increase Vaccinations in Adult Cancer Patients: A Systematic Review"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9472-3263","authenticated-orcid":false,"given":"Giuseppina","family":"Lo Moro","sequence":"first","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federica","family":"Golzio","sequence":"additional","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara Claudia","family":"Calabrese","sequence":"additional","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5189-1294","authenticated-orcid":false,"given":"Giacomo","family":"Scaioli","sequence":"additional","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Basile","sequence":"additional","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberta","family":"Siliquini","sequence":"additional","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"},{"name":"Health Directorate, Azienda Ospedaliera Universitaria City of Health and Science of Turin, 10126 Turin, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabrizio","family":"Bert","sequence":"additional","affiliation":[{"name":"Department of Public Health and Pediatric Sciences, University of Turin, 10126 Turin, Italy"},{"name":"Collegium Medicum, University of Social Sciences, 90-113 Lodz, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,9,11]]},"reference":[{"key":"ref_1","unstructured":"International Agency for Research on Cancer Cancer Today (2025, July 30). 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