Annals of Oncology 11:697-700, 2000
© 2000 European Society for Medical Oncology
research-article |
CaelyxTM in malignant mesothelioma: A phase II EORTC study
1The Netherlands Cancer Institute Amsterdam
2University Hospital Rotterdam
3Academic Hospital Groningen
4The EORTC Data Center Amsterdam, the Netherlands
5Free University Hospital Amsterdam, the Netherlands
Correspondence to: Dr P. Baas, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands. E-mail: baas{at}nki.nl
Background: The use of doxorubicin has shown some activity in malignant mesothelioma but prolonged administration is hampered by cardiotoxicity. CaelyxTM, a new liposomal and pegylated form of doxorubicin has shown a better pharmaco-kinetic and toxic profile then doxorubicin. In a phase II study, the efficacy and toxicity of CaelyxTM was tested in previously untreated patients with malignant pleural mesothelioma.
Patients and methods: Thirty-three patients who had measurable or evaluable histologically confirmed malignant pleural mesothelioma were included in the study. CaelyxTM (45 mg/m2) was given i.v. on outpatient base every four weeks for nine cycles or till progression or unacceptable toxicity occurred.
Results: Of the 33 patients, 32 were evaluable for toxicity, and 31 for response. Two patients had a partial response (6%, 95% confidence interval: 0.2%20.2%). The median survival was 13 months. Forty percent of the patients received >6 cycles. Toxicity was mild with palmar plantar erythrodyses-thesia being most pronounced (62% grade 12, 6% grade 3) and of limited duration. Ten percent of patients had grade 3 anemia and 3% grade 3 thrombocytopenia. Two patients (6%) had grade 3 or 4 cardiac toxicity, which was not drug related.
Conclusion: At the prescribed dose, single agent CaelyxTM is well tolerated but its activity in chemotherapy-naive mesothelioma patients does not warrant further investigation as a single agent.
Caelyx, doxorubicin, liposomal doxorubicin, mesothelioma, phase II
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