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1.
Pharmacogenomics ; 17(4): 375-91, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26894651

RESUMO

AIM: To investigate the potential influence of variants in genes involved in the calcineurin pathway on the efficacy and toxicity of calcineurin inhibitors in renal transplantation. MATERIALS & METHODS: Twenty-three polymorphisms in thirteen genes were tested in 381 renal transplant recipients receiving ciclosporin (n = 221) or tacrolimus (n = 160) and mycophenolate mofetil. Data were collected prospectively over the first year post-transplantation. RESULTS: Multivariate survival analyses revealed no genetic associations with biopsy proven acute graft rejection and serious infections. Donor-recipient Cytomegalovirus mismatch was the only variable associated with serious infection. CONCLUSION: This large exploratory study casts doubts on the potential interest of genetic biomarkers related to CNI pharmacodynamics but associations with other phenotypes in transplantation deserve further studies.


Assuntos
Calcineurina/metabolismo , Transplante de Rim , Polimorfismo de Nucleotídeo Único , Adulto , Ciclosporina/uso terapêutico , Infecções por Citomegalovirus/genética , Feminino , Estudos de Associação Genética , Rejeição de Enxerto/genética , Humanos , Imunossupressores/uso terapêutico , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/análogos & derivados , Ácido Micofenólico/uso terapêutico , Infecções por Pneumocystis/genética , Infecções por Pneumocystis/microbiologia , Pneumocystis carinii , Estudos Prospectivos , Risco , Transdução de Sinais , Tacrolimo/uso terapêutico
2.
Transplantation ; 89(10): 1255-62, 2010 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-20224514

RESUMO

BACKGROUND: In the prospective, randomized, multicenter APOMYGRE trial conducted in France, concentration-controlled mycophenolate mofetil (MMF) dosing based on mycophenolic acid (MPA) exposure significantly reduced the treatment failure and acute rejection during the first posttransplantation year compared with fixed-dose MMF. This analysis investigated the cost effectiveness of dose individualization. METHOD: The study included 65 patients per group (intent-to-treat population). Treatment failure (primary efficacy endpoint) was defined as death, graft loss, acute rejection, or MMF discontinuation because of adverse effects. Data on hospitalizations, drugs prescribed, physicians' fees, laboratory expenses, ambulatory visits, and transportation were retrieved. Costs were calculated from the French National Health System perspective. RESULTS: The mean (95% confidence interval) total yearly cost per patient was Euro 47,477 (Euro 43,933; Euro 51,020) in the concentration-controlled group and Euro 46,783 ( Euro 44,152; Euro 49,414) in the fixed-dose group (P=0.7). The observed incremental cost-effectiveness ratio was Euro 3757 per treatment failure (Purchasing Power Parities United States/France: $4129). Hospitalization and drug costs accounted for approximately 50% and 25% of total costs, respectively. The cost for MPA area under the concentration-time curve and dose calculation was Euro 452 per patient, less than 1% of the total cost. CONCLUSION: In the APOMYGRE trial, therapeutic MPA monitoring using a limited sampling strategy reduced the risk of treatment failure and acute rejection in renal allograft recipients during the first 12 months posttransplantation, at neutral cost.


Assuntos
Transplante de Rim/imunologia , Ácido Micofenólico/análogos & derivados , Corticosteroides/uso terapêutico , Adulto , Idoso , Assistência Ambulatorial/economia , Anticorpos Monoclonais/uso terapêutico , Basiliximab , Feminino , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Teste de Histocompatibilidade , Humanos , Terapia de Imunossupressão/economia , Terapia de Imunossupressão/métodos , Imunossupressores/economia , Imunossupressores/uso terapêutico , Transplante de Rim/mortalidade , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/economia , Ácido Micofenólico/uso terapêutico , Proteínas Recombinantes de Fusão/uso terapêutico , Reoperação/economia , Reoperação/estatística & dados numéricos , Suíça , Falha de Tratamento
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