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Hiraide S, Komine K, Sato Y, Ouchi K, Imai H, Saijo K, Takahashi M, Takahashi S, Shirota H, Takahashi M, Ishioka C. Efficacy of modified FOLFOX6 chemotherapy for patients with unresectable pseudomyxoma peritonei. Int J Clin Oncol 2019; 25:774-781. [PMID: 31823151 PMCID: PMC7118031 DOI: 10.1007/s10147-019-01592-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/29/2019] [Indexed: 01/02/2023]
Abstract
Background Pseudomyxoma peritonei (PMP) is a rare malignancy, and there is insufficient evidence about systemic chemotherapy for this disease. Methods We retrospectively evaluated the efficacy and safety of a chemotherapeutic regimen with 5-fluorouracil and oxaliplatin (modified FOLFOX6, mFOLFOX6) for patients with unresectable pseudomyxoma peritonei. Patients who received the therapy between April 2000 and February 2019 at the Department of Medical Oncology, Tohoku University Hospital, were enrolled in this study. Results Eight patients were treated with mFOLFOX6. The sites of primary tumor were appendix in six patients, ovary in a patient, and urachus in a patient. Six patients received surgery. Seven patients had histologically high-grade PMP, and one patient had low-grade PMP. The median follow-up duration was 27.2 months. All the patients had non-measurable regions as the targets of tumor response. Non-complete response or non-progressive disease was observed in seven patients, with a disease control rate of 87.5%. The median progression-free survival and overall survival were 13.0 months and 27.9 months, respectively. An obvious reduction in the symptoms was observed in two patients. Five patients experienced decline in the serum tumor markers, CEA or CA19-9. The grade 3/4 toxicity that was observed was grade 4 neutropenia in one patient and grade 3 neutropenia in two patients. Conclusions mFOLFOX6 might be an effective and tolerable treatment option for patients with unresectable PMP. To our knowledge, this is the first case series of mFOLFOX6 in patients with unresectable PMP and the first case series of systemic chemotherapy for Asian patients with unresectable PMP. Electronic supplementary material The online version of this article (10.1007/s10147-019-01592-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sakura Hiraide
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Keigo Komine
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Yuko Sato
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Kota Ouchi
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Hiroo Imai
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Ken Saijo
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Masahiro Takahashi
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
- Department of Clinical Oncology, Institute of Development, Aging and Cancer, Tohoku University, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Shin Takahashi
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Hidekazu Shirota
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
| | - Masanobu Takahashi
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan
- Department of Clinical Oncology, Institute of Development, Aging and Cancer, Tohoku University, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Chikashi Ishioka
- Department of Medical Oncology, Tohoku University Hospital, Aoba-ku, Sendai, Miyagi, Japan.
- Department of Clinical Oncology, Institute of Development, Aging and Cancer, Tohoku University, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
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