[Cost/effectiveness analysis of adjuvant therapy with trastuzumab in patients with HER2 positive early breast cancer].
Trastuzumab (Herceptin), a recombinant, humanised, monoclonal-antibody that targets human epidermal growth factor receptor 2 (HER2), has been approved as an adjuvant therapy for HER2-positive early breast cancer. The aim of this study was to assess the incremental cost-effectiveness ratio of this treatment compared with adjuvant therapy alone in the French setting. A cost-effectiveness analysis was performed using a Markov state transition model. The transition probabilities were estimated from the interim results of the Hera trial. Unit costs data were mainly estimated in a French Oncology Center (Georges-François Leclerc, Dijon). The model estimated that overall mean survival of patients treated with trastuzumab was 20.08 years versus 16.23 in the observation group (3.85 life-years gained). For 1 000 patients with a 10-year follow-up, an adjuvant therapy with trastuzumab would avoid 49.7 loco-regional recurrences, 179.5 distant recurrences and 133.4 deaths. The incremental discounted cost of trastuzumab therapy over a lifetime horizon was estimated at 27594 euro per patient in association with a discounted gain of 2.27 life-years. In accordance with the techniques of economical evaluation, the utilization of trastuzumab as an adjuvant therapy in patients with early HER2 positive breast cancer improves patient survival with an acceptable cost-effectiveness ratio in the French setting (incremental cost-effectiveness ratio of 12,148 euros /LYG).
Fagnani
Francis
F
Cemka Eval, 43, boulevard du Maréchal-Joffre, 92340 Bourg-la-Reine. francis.fagnani@cemka.fr
Colin
Xavier
X
Arveux
Patrick
P
Coudert
Bruno
B
Misset
Jean-Louis
JL
D000911:Antibodies, Monoclonal / Q000009:adverse effects / Q000191:economics* / Q000627:therapeutic use; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents / Q000009:adverse effects / Q000191:economics* / Q000627:therapeutic use; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000378:metabolism; D017024:Chemotherapy, Adjuvant / Q000191:economics; D003362:Cost-Benefit Analysis; D016527:Drug Costs; D005260:Female; D006801:Humans; D008390:Markov Chains; D009363:Neoplasm Proteins / Q000378:metabolism; D009364:Neoplasm Recurrence, Local; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000378:metabolism*; D012680:Sensitivity and Specificity; D000068878:Trastuzumab
D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents; D009363:Neoplasm Proteins; D018719:Erb-b2 Receptor Tyrosine Kinases; D000068878:Trastuzumab