Helmberger, Thomas

Isailovic, Tatjana(V)

Maleux, Geert

Pereira, Philippe

Prenen, Hans

Spriet, Isabelle

Abstract: To evaluate pharmacokinetic and safety profile of LifePearl microspheres loaded with irinotecan (LifePearl-IRI) in the treatment of liver-dominant, metastatic colorectal carcinoma (LM-CRC) by transarterial chemoembolization. In a prospective, multicentre pharmacokinetic study, 14 patients with LM-CRC progressing on at least one line of chemotherapy were treated with LifePearl-IRI. Six patients received unilobar treatment, treating one lobe per session with 100 mg of irinotecan every 2 weeks. Eight patients received bilobar treatment, treating two lobes per session with 100 mg of irinotecan each (200 mg in total), every 4 weeks. At 24 h, near complete plasma clearance occurred for both irinotecan and SN-38, regardless of the dose. Mean plasma C(max(100 mg))was 254.50 +/- 104.17 ng/mL for irinotecan and 46.72 +/- 13.75 ng/mL for SN-38. Mean C(max(200 mg))was 970.09 +/- 353.75 ng/mL for irinotecan and 118.45 +/- 25.11 ng/mL for SN-38. Significantly higher Cmax-iri((200 mg))than Cmax-iri((100 mg))supported rate-limiting irinotecan-to-SN-38 conversion. Adverse events during the first 30 days upon initial treatment were hypertension in 21.4%, abdominal pain in 14.3%, and increased transaminases and fever in 7.1% of patients. Four serious adverse events were noted: respiratory failure, constipation, necrotizing pancreatitis, and ischaemic cholecystitis. Chemoembolization with LifePearl-IRI is technically feasible and relatively well tolerated, with a good pharmacokinetic profile and minimal systemic exposure of both irinotecan and SN-38, after both unilobar and bilobar treatment with 100 or 200 mg, respectively

Institutional Repository Universiteit Antwerpen

LifePearl microspheres loaded with irinotecan in the treatment of Liver-dominant metastatic colorectal carcinoma : feasibility, safety and pharmacokinetic study

LifePearl microspheres loaded with irinotecan in the treatment of Liver-dominant metastatic colorectal carcinoma : feasibility, safety and pharmacokinetic study

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Institutional Repository Universiteit Antwerpen