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Updated: May 31, 2026

Implantation and Monitoring by PET/CT of an Orthotopic Model of Human Pleural Mesothelioma in Athymic Mice
Published on: December 21, 2019
[Current status and future direction of Japan's clinical trial for malignant pleural mesothelioma]
Seiki Hasegawa1, Fumihiro Tanaka, Morihito Okada
1Department of Thoracic Surgery, Hyogo College of Medicine, Mukogawa-cho, Nishinomiya, Japan. hasegawa@hyo-med.ac.jp
Abstract:
The feasibility and efficacy of trimodality therapy for malignant pleural mesothelioma (MPM) are still controversial mainly due to the lack of clinical evidence. Although three major clinical trials on this therapy have been recently reported from North America and Europe, it remains unclear whether results in Caucasian populations may be directly applicable to Asian populations. In this context, as a project of the "Comprehensive approach on asbestos-related diseases" supported by the "Special Coordination Fund for Promoting Science and Technology of MEXT, Japan", a prospective multi-institutional study has been planned to evaluate the feasibility of induction chemotherapy using pemetrexed plus cisplatin, followed by extrapleural pneumonectomy (EPP) and postoperative hemithoracic radiation in patients with resectable MPM. Primary endpoints are macroscopic complete resection rate by EPP and treatment-related mortality for trimodality therapy. The study was initiated in May 2008 and patient enrollment was finished in November 2010.
Insights
This study evaluated trimodality therapy for malignant pleural mesothelioma (MPM) in Japan. It assessed the feasibility of chemotherapy, surgery, and radiation, aiming to provide crucial clinical evidence for Asian populations.
Area of Science:
- Oncology
- Thoracic Surgery
- Clinical Trials
Background:
- Malignant pleural mesothelioma (MPM) treatment efficacy is debated due to limited clinical evidence.
- Previous trimodality therapy trials were conducted in Western populations, raising questions about applicability to Asian patients.
Purpose of the Study:
- To evaluate the feasibility of trimodality therapy for resectable MPM in Japan.
- To assess the macroscopic complete resection rate and treatment-related mortality of this approach.
Main Methods:
- A prospective, multi-institutional study was conducted.
- Patients received induction chemotherapy (pemetrexed plus cisplatin) followed by extrapleural pneumonectomy (EPP) and hemithoracic radiation.
- Enrollment occurred from May 2008 to November 2010.
Main Results:
- The study focused on feasibility and safety endpoints.
- Primary endpoints included macroscopic complete resection rate and treatment-related mortality.
Conclusions:
- This study provides essential feasibility data for trimodality therapy in an Asian MPM patient cohort.
- Results contribute to the limited clinical evidence base for MPM treatment strategies.
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