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1.
Praxis (Bern 1994) ; 94(13): 497-501, 2005 Mar 30.
Artigo em Alemão | MEDLINE | ID: mdl-15839466

RESUMO

The bioequivalence of an optimised formulation of a generic mefloquine (Mephaquin Lactabs/Test) compared to the reference product under fed conditions was assessed in a GCP/ICH conformable study. A standard two-way randomised crossover design with a 9 week washout period between treatments was used. Blood samples for determination of mefloquine concentrations for calculation of Cmax and AUC were collected at pre-dose and at predefined intervals up to 2016 hours after administration of a single oral dose of 750 mg. A standard bioequivalence analysis was performed on the two one-sided t-test procedure for log-transformed Cmax and AUC. 90% confidence intervals were calculated for both parameters and evaluated against regulatory standards of 80-125% (T/R). Analysis of plasma for mefloquine concentration was performed using a validated LC/MS method with MS detection. The ratio of mean AUC and Cmax (T/R) was 1.015 and 1.044, respectively. The 90% confidence intervals were 95.8-109.3% for AUC and 98.2-110.5% for Cmax. Mephaquin produces plasma concentrations comparable to those after administration of the reference product. The 90% confidence intervals for AUC and Cmax are within the acceptable ranges for bioequivalence of 80-125%. Thus, the optimised galenical formulation of Mephaquin Lactabs is bioequivalent to the reference product.


Assuntos
Antimaláricos/farmacocinética , Medicamentos Genéricos/farmacocinética , Mefloquina/farmacocinética , Administração Oral , Adulto , Antimaláricos/administração & dosagem , Antimaláricos/sangue , Disponibilidade Biológica , Intervalos de Confiança , Estudos Cross-Over , Medicamentos Genéricos/administração & dosagem , Humanos , Masculino , Mefloquina/administração & dosagem , Mefloquina/sangue , Modelos Teóricos , Equivalência Terapêutica , Fatores de Tempo
2.
Br J Sports Med ; 38(3): 318-23, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15155436

RESUMO

OBJECTIVES: To investigate the clinical efficacy and safety of a newly developed diclofenac patch in the topical treatment of blunt impact injuries. METHODS: This was a randomised, placebo controlled, double blind, multicentre study in 120 patients with traumatic blunt soft tissue injury. Within 3 h of the injury participants of sport competitions and training camps were enrolled and treated twice daily with the diclofenac or a placebo patch over a period of 7 days. Patients were randomised (1:1) to two parallel groups. Tenderness produced by pressure was measured twice daily during the first 3 days after enrollment as well as at day 7. Tenderness was defined as the amount of pressure (measured by a calibrated caliper at the centre of the injury) that first produced a pain reaction as reported by the patient. RESULTS: The primary efficacy variable was the area under the curve for tenderness over the first 3 days. The diclofenac patch was significantly more effective than placebo (p<0.0001). The treatment effect was 64.7 kp h/cm2 (95% confidence interval 48.7 to 80.9) between diclofenac and placebo patches. These results were supported by all secondary efficacy variables. The diclofenac patch produced rapid pain relief as reflected by the time to reach resolution of pain at the injured site which was significantly shorter compared to placebo (p<0.0001). The diclofenac patch was well tolerated. The most frequently observed adverse events were local cutaneous adverse reactions (pruritus, rash) of minor severity occurring with the same frequency as in the placebo group. CONCLUSIONS: A newly developed diclofenac patch is effective and safe for the treatment of blunt impact injuries.


Assuntos
Anti-Inflamatórios não Esteroides/administração & dosagem , Traumatismos em Atletas/tratamento farmacológico , Diclofenaco/administração & dosagem , Ferimentos não Penetrantes/tratamento farmacológico , Doença Aguda , Administração Tópica , Adulto , Anti-Inflamatórios não Esteroides/efeitos adversos , Área Sob a Curva , Diclofenaco/efeitos adversos , Método Duplo-Cego , Feminino , Humanos , Masculino , Medição da Dor/métodos , Fatores de Tempo , Resultado do Tratamento
3.
Praxis (Bern 1994) ; 92(51-52): 2201-7, 2003 Dec 17.
Artigo em Alemão | MEDLINE | ID: mdl-14727476

RESUMO

Studies have shown that topical NSAIDs, e.g. diclofenac, easily penetrate the skin barrier to exert local therapeutic activity. In contrast to oral administration, plasma levels after application of topical formulations are by several magnitudes lower thus explaining the lack of systemic side effects. We discuss the clinical relevance of patches containing an NSAID by demonstrating the efficacy and safety of a newly developed diclofenac patch in the topical treatment of blunt impact soft tissue injuries in a randomised, placebo controlled, double blind, multicentre study. The results showed that the diclofenac patch was significantly more effective than placebo (p < 0.0001) with a significantly faster pain relief. The diclofenac patch was well tolerated. It might be used in indications with similar pathomechanisms.


Assuntos
Anti-Inflamatórios não Esteroides/administração & dosagem , Inibidores de Ciclo-Oxigenase/administração & dosagem , Diclofenaco/administração & dosagem , Lesões dos Tecidos Moles/tratamento farmacológico , Ferimentos não Penetrantes/tratamento farmacológico , Administração Tópica , Traumatismos em Atletas/tratamento farmacológico , Método Duplo-Cego , Feminino , Humanos , Masculino , Estudos Multicêntricos como Assunto , Placebos , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Tempo
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