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A pharmaco-economic analysis of second-line treatment with imatinib or sunitinib in patients with advanced gastrointestinal stromal tumours.
Contreras-Hernández, I; Mould-Quevedo, J F; Silva, A; Salinas-Escudero, G; Villasís-Keever, M A; Granados-García, V; Dávila-Loaiza, G; Petersen, J A; Garduño-Espinosa, J.
Afiliación
  • Contreras-Hernández I; Unidad de Investigación en Economía de la Salud, Instituto Mexicano del Seguro Social, Mexico City, MX, Mexico.
Br J Cancer ; 98(11): 1762-8, 2008 Jun 03.
Article en En | MEDLINE | ID: mdl-18506179
Second-line treatments recommended by the National Cancer Center Network to manage advanced-stage gastrointestinal stromal tumours (GIST) were evaluated to determine the cost and cost-effectiveness of each intervention in the Mexican insurance system, the Instituto Mexicano del Seguro Social (IMSS). Treatments examined over a 5-year temporal horizon to estimate long-term costs included 800 mg day(-1) of imatinib mesylate, 50 mg day(-1) of sunitinib malate (administered in a 4 week on/2 week rest schedule), and palliative care. The mean cost (MC), cost-effectiveness, and benefit of each intervention were compared to determine the best GIST treatment from the institutional perspective of the IMSS. As sunitinib was not reimbursed at the time of the study, a Markov model and sensitivity analysis were conducted to predict the MC and likelihood of reimbursement. Patients taking 800 mg day(-1) of imatinib had the highest MC (+/-s.d.) of treatment at $35,225.61 USD (+/-1253.65 USD); while sunitinib incurred a median MC of $17,805.87 USD (+/-694.83 USD); and palliative care had the least MC over treatment duration as the cost was $2071.86 USD (+/-472.88 USD). In comparison to palliative care, sunitinib is cost-effective for 38.9% of patients; however, sunitinib delivered the greatest survival benefit as 5.64 progression-free months (PFM) and 1.4 life-years gained (LYG) were obtained in the economic model. Conversely, patients on imatinib and palliative care saw a lower PFM of 5.28 months and 2.58 months and also fewer LYG (only 1.31 and 1.08 years, respectively). Therefore, economic modeling predicts that reimbursing sunitinib over high dose imatinib in the second-line GIST indication would deliver cost savings to the IMSS and greater survival benefits to patients.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Piperazinas / Pirimidinas / Pirroles / Tumores del Estroma Gastrointestinal / Indoles / Antineoplásicos Tipo de estudio: Health_economic_evaluation / Prognostic_studies Aspecto: Patient_preference Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Br J Cancer Año: 2008 Tipo del documento: Article País de afiliación: México Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Piperazinas / Pirimidinas / Pirroles / Tumores del Estroma Gastrointestinal / Indoles / Antineoplásicos Tipo de estudio: Health_economic_evaluation / Prognostic_studies Aspecto: Patient_preference Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Br J Cancer Año: 2008 Tipo del documento: Article País de afiliación: México Pais de publicación: Reino Unido