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2004, Number 6

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Rev Med Inst Mex Seguro Soc 2004; 42 (6)

Change of Cyclosporine from Patent to Generic Formulation in Kidney Transplant Patients

Juárez F, Cano L, Camacho R, Adame B, Solís M, Maciel M, Borjón S, Barrios Y
Full text How to cite this article

Language: Spanish
References: 16
Page: 493-499
PDF size: 226.50 Kb.


Key words:

kidney transplantation, cyclosporine, generic cyclosporine, organ transplantation.

ABSTRACT

Introduction: the study was designed to evaluate the clinical results of Zaven ME in stable renal transplantation.
Objective: to evaluate safety and efficacy of cyclosporine in microemulsion Zaven ME in kidney transplant patients receiving schemes with Neoral.
Methods: fifty-three patients fulfilled the inclusion criteria as follows: males or females between 5 and 70 years of age; patients receiving Neoral for at least 6 months, and those who provided signed informed consent. A follow-up of 6 months marked the end of the study. Neoral was changed with a 25 % dose reduction per week and combined Zaven ME with the corresponding dose; 100 % Neoral was given at basal time and 100 % Zaven ME during the first month of the study.
Results: There were no differences between gender, 25 males and 28 females, 45 ± 14 years of age in both groups; 12 had cadaver donors, 37 living related donors and 4 living non-related donors. Fifty-one patients had their first transplant, 1 with a second transplant and the last with a third kidney transplant. The post-transplant period was between 6 and 138 months with a median of 39 ± 27 months. Diabetes mellitus was indicated in 14 cases. Weight, arterial blood pressure, hemoglobin, hematocrit, leucocytes, platelets, cholesterol, triglycerides, low- and high-density lipoproteins and hepatic enzymes were similar. The median values for cyclosporine at baseline levels (C0) of Neoral and Zaven ME were 153 and 129.5, respectively, at the sixth month, with no statistical significance. The average values for cyclosporine 2 hr levels (C2) of Neoral and Zaven ME were 694.7 and 658.4, respectively, with no differences. The average of serum creatinine was 1.315 for Neoral and 1.38 for Zaven ME. No acute rejection was observed and two deaths occurred: one with acute idiopathic pancreatitis and the other with cardiomyopathy. In both cases medication was not the cause of death.
Conclusions: the study variables were not different between the cyclosporine formulations.


REFERENCES

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  2. Tarantino A. Rejection and other renal compli-cations. En: Kahan B, editor. Principles and practiceof renal transplantation. London: Dunitz; 2001. p.481-524.

  3. Pollard S, Lear P, Ready A, et al. UK Neoral RenalStudy Group. Comparison of microemulsion andconventional formulations of cyclosporine A inpreventing acute rejection in de novo kidney transplantpatients. Transplantation 1999;68:1325-1331.

  4. Pollard S, Nashan B, Johnston A, Hoyer P, Belitsky P,et al. A pharmacokinetic and clinical review of thepotential clinical impact of using different formula-tions of cyclosporine A. Clin Ther 2003;25: 1654-1669.

  5. Artículo 75 del Reglamento de Insumos para laSalud. Los medicamentos que integran el Catálogode Medicamentos Genéricos Intercambiables, hansido comparados, siguiendo los lineamientosindicados por la NOM-177SSA1-1998. DiarioOficial de la Federación, (Mayo 7 de 1999). NormaOficial Mexicana NOM-177-SSA1-1998.

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  7. Food and Drug Administration Center for DugEvaluation and Research. Approved drug productswith therapeutic equivalence evaluations. Dispo-nible en: http://www.fda.gov/cder/da/da0502.htmConsultado el 6 de octubre de 2003.

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  9. Instituto Mexicano del Seguro Social. Proceso deAdjudicación directa 2002. Disponible en: http://transparencia.imss.gob.mx/proveedores/comite/abastecimiento/INFORME_ADJ.pdf. Consultadoel 6 de octubre de 2003.

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  15. Johnston A, Holt D. Generic substitution forcyclosporine: What would we be looking for innew formulations?. Transplant Proc 1998;30:1652-1653.16.Cantarovich M, Besner JG, Barkun JS, et al. Two-hour cyclosporine level determination is the appropriatetool to monitor Neoral therapy. Clin Transplant1998;12:243-249.

  16. Barr WH. Cyclosporine: The case for expandingbioequivalence criteria to include measures of indivi-dual bioequivalence in relevant population subsets.Transplant Proc 1999;31(Suppl 3A):25S-30S.




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Rev Med Inst Mex Seguro Soc. 2004;42