Ten-Year Outcome of a Randomized Trial: Cytoreduction and HIPEC with Mitomycin C Versus Oxaliplatin for Appendiceal Neoplasm with Peritoneal Dissemination
2025

Long-Term Outcomes of HIPEC for Appendiceal Cancer

Sample size: 121 publication Evidence: moderate

Author Information

Author(s): Levine Edward A. MD, Cos Heidy MD, Votanopoulos Konstantinos I. MD, PhD, Shen Perry MD, Russell Greg MS, Mansfield Paul MD, Fournier Keith MD, Bartlett David MD, Stewart John H. MD, MBA

Primary Institution: Wake Forest Baptist Health

Hypothesis

Does the use of mitomycin C or oxaliplatin in HIPEC provide better long-term survival outcomes for patients with appendiceal neoplasms?

Conclusion

Both oxaliplatin and mitomycin C have similar long-term efficacy for HIPEC in patients with appendiceal neoplasms and peritoneal dissemination.

Supporting Evidence

  • The 10-year survival rate was 56.2% with mitomycin C and 47.5% with oxaliplatin.
  • The average peritoneal cancer index scores were similar between the two groups.
  • Long-term survival is possible even for high-grade disease if complete cytoreduction is achieved.

Takeaway

This study shows that patients with appendiceal cancer can live a long time after surgery and special chemotherapy, no matter which type of medicine they get.

Methodology

Patients with mucinous appendiceal neoplasms and peritoneal dissemination were enrolled in a randomized trial comparing HIPEC with oxaliplatin or mitomycin C, with survival rates calculated at 10 years.

Limitations

The study was not powered sufficiently to define small differences in survival, and results may vary at less experienced centers.

Participant Demographics

57% female, mean age 55.3 years, 92% Caucasian.

Statistical Information

P-Value

p=0.83

Statistical Significance

p=0.83

Digital Object Identifier (DOI)

10.1245/s10434-024-16441-z

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