Antitumour Efficacy of Two Paclitaxel Formulations for Hyperthermic Intraperitoneal Chemotherapy (HIPEC) in an In Vivo Rat Model

作者：Bouquet Wim; Deleye Steven; Staelens Steven; De Smet Lieselotte; Van Damme Nancy; Debergh Isabelle; Ceelen Wim P; De Vos Filip; Remon Jean Paul; Vervaet Chris^*

来源：Pharmaceutical Research, 2011, 28(7): 1653-1660.

DOI：10.1007/s11095-011-0401-1

• hyperthermic intraperitoneal chemotherapy
• paclitaxel
• tumour growth delay
• beta-cyclodextrin

To evaluate the tumour growth delay of a peritoneal carcinomatosis (PC) of colorectal origin after intraperitoneal chemotherapy with paclitaxel/randomly-methylated-beta-cyclodextrin (Pac/RAME-beta-CD) versus TaxolA (R) at normo- and hyperthermic conditions in rats.
Hyperthermic intraperitoneal chemotherapy (HIPEC) was performed 7 days post implantation of the tumour with both formulations at a Pac concentration of 0.24 mg/ml. Tumour evaluation was performed via positron emission tomography (PET) and magnetic resonance imaging (MRI) imaging, measuring tumour activity and tumour volume, respectively. Scans were taken at 2 and 7 days post treatment.
PET and MRI data showed a significant reduction in tumour activity and tumour volume for rats treated with Pac/RAME-beta-CD (at normo- and hyperthermic conditions), compared to the control group. Treatment with TaxolA (R) did not result in a significant reduction of tumour activity and tumour volume. No significant differences between the normo- and hyperthermic conditions were observed for both formulations, indicating that hyperthermia and paclitaxel were not synergistic despite the direct cytotoxic effect of hyperthermia.
Monitoring tumour growth via PET and MRI indicated that Pac/RAME-beta-CD inclusion complexes had a significantly higher efficacy compared to TaxolA (R) in a rat model for peritoneal carcinomatosis.

• 出版日期2011-7