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1.
Arq. bras. cardiol ; 60(6): 437-444, Jun. 1993.
Article in Portuguese | LILACS | ID: lil-321687

ABSTRACT

PURPOSE-To compare the effects of simvastatin and bezafibrate on the lipid profile to attain the objectives proposed by National Cholesterol Education Program (NCEP). METHODS--One hundred twenty six hypercholesterolemic patients (69 females and 57 men, 56.0 +/- 10.0 years old), after selection and placebo period (4 weeks) were maintained on lipid-lowering diet and were randomly assigned in a double-blind fashion to receive for 12 weeks, bezafibrate (B, 200mg t.i.d. - BG(n = 66)) or simvastatin (S, 10-40mg q.p.m. - SG(n = 60)). During the study, 28 patients (SG0) received S 10mg; in 14 patients (SG1) dosage was titrated to 20mg and in 18 cases (SG2) to 40mg. Clinical examination, lipid profile and safety determinations, and adverse effects were assessed in different periods of the study. RESULTS--Mean profile analysis showed different behaviour of BG, SG0, SG1 and SG2 through time for TC, TG, LDL-C and VLDL-C. Mean reductions of TC and LDL-C were more marked in SG (30.3 and 40.9) than in BG (18.8 and 24.8). BG showed greater increase of TG (33.7) and HDL-C (25.9) than did SG (16.3 and 7.7 respectively). Reduction greater than 30 (optimal responses) and between 20 and 29 (good responses) were more frequent in SG and LDL-C. BG showed greater frequency of good and optimal responses for TG reduction and HDL-C increase. NCEP goals were achieved in 75.4 of SG and 46.9 of BG (p = 0.001). No clinical or laboratorial adverse experiences were reported in any treatment groups. CONCLUSION--Simvastatin was more effective in the reduction of plasma levels of atherogenic lipid fractions (TC and LDL-C) and this treatment allowed earlier achievement of the goals proposed by NCEP in a greater number of patients


Objetivo - Comparar os efeitos da administração de sinvastatina e bezafibrato sobre o perfil lipídico sangüíneo para alcançar as proposições do Programa Nacional de Educação sobre Colesterol (NCEP) do Instituto Nacional de Saúde dos Estados Unidos. Métodos - Cento e vinte e seis hipercolesterolêmicos primários (69 mulheres e 57 homens, de 56,0±10,0 anos), após período de seleção e 4 semanas de placebo, foram alocados de modo cego e randomizado, para receber, durante 12 semanas, mantendo a orientação dietética, 200mg 3 vezes ao dia de bezafibrato (GB, n=66) e 10 a 40mg, à noite, de sinvastatina (GS, n=60). Em GS, durante o estudo, 28 pacientes foram mantidos com 10mg (GS0); em 14 (GS1), a dose foi aumentada para 20mg e em 18 (GS2) para 40mg Exames clínicos, determinações de variáveis do perfil lipídico sangüíneo, exames laboratoriais de controle e verificação de efeitos adversos foram realizados em diferentes períodos da investigação. Resultados - A análise do perfil de médias mostrou diferença de comportamento de GB, GS0, GS1 e GS2 ao longo do tempo para a colesterolemia total (CT), trigliceridemia (TG) e frações LDL-C e VLDL-C. Reduções médias de CT e LDL-C foram mais acentuadas em GS (30,3 e 40,9%) que em GB (18,8 e 24,8%). Em GB ocorreu maior redução de TG (33,7%) e aumento de HDLC (25,9%) que em GS (respectivamente 16,3 e 7,7%). Reduções superiores a 30% (resposta ótima) e entre 20-29% (resposta boa) foram mais freqüentes em GS para CT e LDL-C. GB teve maior freqüência de respostas boas e ótimas para a redução de TG e elevação de HDLC. Os objetivos do NCEP foram significantemente mais alcançados em GS (75,4%) do que em GB (46,9°/). Não ocorreram significativas reações adversas clínicas e/ou laboratoriais em GS e GB. Conclusão - A sinvastatina mostrou-se mais eficaz na redução dos níveis das frações aterogênicas (CT e LDL-C) e permitiu alcançar mais precocemente e em maior número de indivíduos os objetivos propostos pelo NCEP


Subject(s)
Humans , Male , Female , Middle Aged , Bezafibrate , Lovastatin , Hypercholesterolemia , Lipids/blood , Time Factors , Bezafibrate , Lovastatin , Hypercholesterolemia , Program Evaluation , Double-Blind Method
2.
Arq. bras. cardiol ; 57(3): 253-61, set. 1991. tab
Article in Portuguese | LILACS | ID: lil-107926

ABSTRACT

Objetivo Comparar efeitos da administração de lovastatina e de probucol nas frações lipoprotéicas em indivíduos com hipercolesterotemia primária. Métodos Sessenta e nove pacientes que mantidos com dieta adequada e por quatro semanas sob uso de placebo (PLAC) permaneceram com colesterolemia total (CT) acima de 250 mg/dl. Lovastatina foi administrada a 31 pacientes na dose de 20 mg/dia, sendo aumentada para 40 mg/dia se ao final da 5a semana de tratamento os valores da CT se mantivessem acima de 200 mg/dl. Probucol prescrito a 38 pacientes na dose de 500 mg, duas vezes ao dia. O estudo foi realizado por 12 semanas. Dosagens de colesterolemia total (CT), trigliceridemia (TG), HDL-C, colesterol não HDL, LDL-C, VLDL-C e relações CT/ HDL-C e LDL-C/HDL-C e exames laboratoriais de controle foram feitos em PLAC, na 5a e 12a semanas de tratamento. Foram realizados também exames clínico e oftalmológico e anotados os eventuais efeitos adversos. Resultados A lovastatina provocou reduções de CT, LDL-C, colesterol não HDL e das relações CT/HDL-C e LDL-C/HDL-C respectivamente de 27,9,34,1,3,2,30,9 e 36,5%, significativamente mais acentuadas que as induzidas por probucol, (respectivamente 21,7, 23,8, 24,5, 11,3 e 13,4%); a lovastatina foi responsável pela elevação dos valores de HDL-C em 6,8%, enquanto que probucol provocou redução de 6,9%; 5,8% e 51,6% dos sob uso de lovastatina tiveram respectivamente redução das relações CT/HDL-C e LDL-C/HDL-C. Sob efeito de probucol, essas reduções ocorreram, respectivamente, em 15,7% e 13,1%; a lovastatina foi responsável por 77,4% e 77,3% das respostas ótimas e boas para CT e LDL-C. As respostas regulares e precárias foram mais freqüentemente observadas com o uso do probucol (39,4% cada); a freqüência dos efeitos adversos foi baixa e a tolerância satisfatória para as duas drogas. Conclusão A lovastatina foi mais eficaz para a redução dos níveis sangüíneos das frações aterogênicas e para a elevação da fração protetora, com redução mais acentuada dos índices de risco. Com seu uso, permitindo atingir mais facilmente os níveis ideais de CT e LDL-C, deverá ocorrer maior benefício sobre a morbidade e mortalidade por doença arterial coronariana


Purpose The changes in lipoproteins induced by lovastatin (L) and probucol (P) were compared in patients with primary hypercholesterolemia. Methods—After a six-week period of screening, during which patients were maintained on lipid-lowering diet, they were administered placebo for four weeks. Those patients. whose total cholesterol (TC) remained above 250 mg/dl were eligible for active treatment. Thirty-one patients were administered L and P for 12 weeks. The initial dosage of L was 20 mg daily and it was titrated up to 40 mg daily at the end of the fifth week of treatment, whenever total cholesterol levels remained above 200 mg/dl; P was administered at a dosage of 500 mg b.i.d. through 12 weeks. Lipid analyses (TC, triglycerides-Tg, high-density cholesterol (HDL-C) non HDL cholesterol, low-density cholesterol (LDL-C) very lowdensity cholesterol (VLDL-C) and the ratios CT/HDL-C and laboratory safety measurements were performed during placebo period and at the end of the 5th and 12th weeks of active treatment. Clinical and ophthalmological evaluations were performed and eventual adverse reactions were recorded on different occasions. Results—1) L induced decrease of TC, LDL-C/HDL-C of 27.9,34.1,32.2,30.9 and 36.5% respectively. These reductions were significantly more pronounced than those induced by P (21.7, 23.8, 24.5, 11.3 and 13.4% respectively); 2) L induced an increase of HDL-C of 6.8%, while P induced a reduction of HDL-C of 6.9%; 3) 54.8% and 51.6 % of the patients treated with L showed reductions of the ratios TC/HDL-C and LDL-C/HDL-C respectively The patients who were administered P showed decrease in those indices of 15.7% and 13.1% respectively; 4) L was associated with 77.4% and 77.3% of excellent and good responses for TC and LDL-C. Regular and poor responses were more frequently observed during the treatment with P (39.4% each); 5) the incidence of adverse reactions was low and tolerability was considered good for both drugs. Conclusion Lovastatin was more effective in the reduction of atherogenic lipoprotein fraction and in the increase of the protective one, with more pronounced reduction of the risk indices. They suggest that with the administration of L, that leads to an approapriate normalization of TC and LDL-C levels, greater benefits on morbidity and mortality of coronary disease can be achieved


Subject(s)
Probucol/therapeutic use , Lovastatin/therapeutic use , Hypercholesterolemia/drug therapy , Probucol/administration & dosage , Brazil , Lovastatin/administration & dosage , Cholesterol, VLDL/blood , Cholesterol/blood , Multicenter Studies as Topic , Hypercholesterolemia/blood , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Analysis of Variance , Triglycerides/blood
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