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Background <p>Chemotherapy-induced nausea and vomiting (CINV) significantly impact quality of life of patients with cancer. Although antiemetic guidelines exist for low-emetic chemotherapy (LEC), recommendations vary across international guidelines and direct evidence comparing 5-HT3 receptor antagonists (5-HT3 RAs) with dexamethasone monotherapy is lacking.</p> Methods <p>We conducted a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for randomized controlled trials, nonrandomized comparative studies, and observational studies directly comparing 5-HT<sub>3</sub> RA with dexamethasone monotherapy in adult patients with LE, using PubMed, the Cochrane Library, CINAHL, and Ichushi-Web from January 1990 to December 2020.</p> Results <p>A systematic search identified 427 articles (87 from PubMed, 337 from the Cochrane Library, and three from Ichushi-Web), with three additional records identified through other sources. After the first screening of 430 articles, 425 records were excluded, and five records were used for full-text assessment. Following the second screening, five full-text articles were excluded for not meeting the inclusion criteria.</p> Conclusions <p>This systematic review identified no direct comparative evidence. Future efforts to strengthen the evidence base should include not only prospective comparative trials where feasible but also observational studies, real-world data analyses, and other complementary approaches that better reflect routine clinical practice.</p>

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Systematic review of antiemetic therapy for low emetogenic chemotherapy: comparing 5-HT3 receptor antagonists and dexamethasone

  • 期刊论文

  • 发表日期：

    2026年7月21日

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  • Takeshi Aoyama,
  • Hirotoshi Iihara,
  • Masakazu Abe,
  • Makoto Wada,
  • Keiko Iino,
  • Tatsuo Akechi,
  • Chiyo K. Imamura,
  • Ayako Okuyama,
  • Keiko Ozawa,
  • Yong-Il Kim,
  • Hidenori Sasaki,
  • Eriko Satomi,
  • Masayuki Takeda,
  • Ryuhei Tanaka,
  • Takako Eguchi Nakajima,
  • Naoki Nakamura,
  • Junichi Nishimura,
  • Mayumi Noda,
  • Kazumi Hayashi,
  • Takahiro Higashi,
  • Narikazu Boku,
  • Koji Matsumoto,
  • Yoko Matsumoto,
  • Kenji Okita,
  • Nobuyuki Yamamoto,
  • Kenjiro Aogi

摘要

Background

Chemotherapy-induced nausea and vomiting (CINV) significantly impact quality of life of patients with cancer. Although antiemetic guidelines exist for low-emetic chemotherapy (LEC), recommendations vary across international guidelines and direct evidence comparing 5-HT3 receptor antagonists (5-HT3 RAs) with dexamethasone monotherapy is lacking.

Methods

We conducted a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for randomized controlled trials, nonrandomized comparative studies, and observational studies directly comparing 5-HT3 RA with dexamethasone monotherapy in adult patients with LE, using PubMed, the Cochrane Library, CINAHL, and Ichushi-Web from January 1990 to December 2020.

Results

A systematic search identified 427 articles (87 from PubMed, 337 from the Cochrane Library, and three from Ichushi-Web), with three additional records identified through other sources. After the first screening of 430 articles, 425 records were excluded, and five records were used for full-text assessment. Following the second screening, five full-text articles were excluded for not meeting the inclusion criteria.

Conclusions

This systematic review identified no direct comparative evidence. Future efforts to strengthen the evidence base should include not only prospective comparative trials where feasible but also observational studies, real-world data analyses, and other complementary approaches that better reflect routine clinical practice.