PURPOSE: To evaluate the tumour growth delay of a peritoneal carcinomatosis (PC) of colorectal origin after intraperitoneal chemotherapy with paclitaxel/randomly-methylated-β-cyclodextrin (Pac/RAME-β-CD) versus Taxol® at normo- and hyperthermic conditions in rats. METHODS: 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. RESULTS: PET and MRI data showed a significant reduction in tumour activity and tumour volume for rats treated with Pac/RAME-β-CD (at normo- and hyperthermic conditions), compared to the control group. Treatment with Taxol® 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. CONCLUSION: Monitoring tumour growth via PET and MRI indicated that Pac/RAME-β-CD inclusion complexes had a significantly higher efficacy compared to Taxol® in a rat model for peritoneal carcinomatosis.
PURPOSE: To evaluate the tumour growth delay of a peritoneal carcinomatosis (PC) of colorectal origin after intraperitoneal chemotherapy with paclitaxel/randomly-methylated-β-cyclodextrin (Pac/RAME-β-CD) versus Taxol® at normo- and hyperthermic conditions in rats. METHODS: 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. RESULTS: PET and MRI data showed a significant reduction in tumour activity and tumour volume for rats treated with Pac/RAME-β-CD (at normo- and hyperthermic conditions), compared to the control group. Treatment with Taxol® 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. CONCLUSION: Monitoring tumour growth via PET and MRI indicated that Pac/RAME-β-CD inclusion complexes had a significantly higher efficacy compared to Taxol® in a rat model for peritoneal carcinomatosis.
Authors: John Michalakis; Spyros D Georgatos; Eelco de Bree; Hara Polioudaki; John Romanos; Vassilis Georgoulias; Dimitris D Tsiftsis; Panayiotis A Theodoropoulos Journal: Ann Surg Oncol Date: 2007-01-07 Impact factor: 5.344
Authors: Hans Gelderblom; Jaap Verweij; Desirée M van Zomeren; Dirk Buijs; Linda Ouwens; Kees Nooter; Gerrit Stoter; Alex Sparreboom Journal: Clin Cancer Res Date: 2002-04 Impact factor: 12.531
Authors: S Ten Raa; S J Oosterling; N P van der Kaaij; M P van den Tol; R H J Beelen; S Meijer; C H J van Eijck; J R M van der Sijp; M van Egmond; J Jeekel Journal: J Surg Oncol Date: 2005-11-01 Impact factor: 3.454
Authors: Vic J Verwaal; Serge van Ruth; Eeclo de Bree; Gooike W van Sloothen; Harm van Tinteren; Henk Boot; Frans A N Zoetmulder Journal: J Clin Oncol Date: 2003-10-15 Impact factor: 44.544