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MO14 - Mesothelioma II - Surgery and Multimodality (ID 121)
- Event: WCLC 2013
- Type: Mini Oral Abstract Session
- Track: Mesothelioma
- Presentations: 1
MO14.05 - Intracavitary Cisplatin-Fibrin Chemotherapy after Resection for Malignant Pleural Mesothelioma Patients (INFLuenCe-Meso) - preliminary results (ID 2683)
10:30 - 12:00 | Author(s): O. Lauk
Local mesothelioma recurrence remains a challenge even after multimodal therapy. Intracavitary chemotherapy is a promising approach to improve local tumor control. In preclinical studies we observed improved pharmacokinetic characteristics when cisplatin was loaded to a fibrin carrier and applied to the chest wall after surgery while effectiveness remained the same compared to cisplatin applied as a solution. We will present the first results of a phase I –dose-escalation-clinical study.
Since 11/2012 3 patients were included in the study. Cisplatin-fibrin was applied after pleurectomy/decortication (P/D) to the chest wall in a concentration of 11 mg/m BSA. Blood samples were taken at several time points after the application (2, 6, 10, 24, 48 and 120 hours) to assess serum cisplatin levels and to test toxicity in the early phase until 14 days postoperatively. The concentration of total platinum was quantified by means of inductively coupled plasma sector field mass spectrometric detection. Adverse events were graded according to the CTCAE.
Between November 2012 and March 2013 three patients (2x epithelioid, 1x biphasic) in stage II, III and stage IV were included and received P/D plus Cisplatin-Fibrin in a concentration of 11 mg/m. The maximum concentration of cisplatin in the serum was below 0.3 µg/g at 2 h after application and continued to decrease over a period of 5 days (see image 1). No severe adverse events were observed. The adverse events documented were not related to cisplatin (table 1):
Diagnosis / symptoms CTC AE grading Number of patients Related to Cisplatin Fatigue Grade II 2 possible Anemia Grade III 2 unlikely Nausea / vomiting Grade I 1 possible Increased kreatinin & urea levels Grade II 1 possible Increased CK levels Grade IV 1 unlikely Increased level of transaminases Grade III 1 unlikely Urinary retention Grade II 1 unlikely Hypotension Grade II 1 unlikely Pneumothorax Grade II 1 unlikely
Our preliminary results show, that cisplatin-fibrin application to the chest wall and the lung surface after P/D is safe on a dose level of 11mg/m2 BSA. As no treatment related mortality and no drug related toxicity was observed we escalate the dosage to 22 mg/m2 BSA, further results including chest wall concentrations of cisplatin will be available in October.
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