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  • 1
    Electronic Resource
    Electronic Resource
    Pharmacokinetics and bioequivalence evaluation of three commercial tablet formulations of mefloquine when given in combination with dihydroartemisinin in patients with acute uncomplicated falciparum malaria (2000)
    Springer
    European journal of clinical pharmacology 55 (2000), S. 743-748 
    Details
    ISSN: 1432-1041
    Keywords: Key words Pharmacokinetics ; Bioequivalence ; Mefloquine ; Uncomplicated falciparum malaria ; Dihydroartemisinin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objective: To assess the pharmacokinetics and relative bioavailability/bioequivalence of three commercial tablet formulations of mefloquine, i.e. Lariam (reference formulation), Mephaquin 100 Lactab and Eloquin-250, when given sequentially after dihydroartemisinin in Thai patients with acute uncomplicated falciparum malaria. Methods: Twenty-nine Thai patients with acute uncomplicated falciparum malaria were randomised to receive an initial dose of 300 mg dihydroartemisinin, followed by 1250 mg mefloquine (at 24 h and 30 h after dihydroartemisinin) given as either Lariam (n=10 cases), Mephaquin (n=9 cases) or Eloquin-250 (n=10 cases). Serial blood samples were obtained up to day 42 after treatment with mefloquine. Mefloquine concentrations were determined in whole blood by means of ultraviolet high-performance liquid chromatography. The pharmacokinetic parameters of mefloquine were estimated using non-compartmental and compartmental analysis. Results: The three combination regimens were well tolerated. Patients in all treatment groups had a rapid initial response. However, nine patients (four and five cases in regimen containing Mephaquin 100 Lactab and Eloquin-250, respectively) had reappearance of parasitaemia during the follow-up period. Mefloquine from the three formulations showed significantly different pharmacokinetic and bioavailability metrics. Significantly lower peak plasma concentrations (Cmax) and areas under the plasma concentration–time curve (AUC; AUC0–48h, AUC0–7days, and total AUC) were observed with Mephaquin 100 Lactab than with the other two formulations. Mean values for relative bioavailability of the test to standard products were 49.1% (Mephaquin 100 Lactab) and 72.4% (Eloquine-250). Based on the criteria set, the bioavailability of the two test products (Mephaquin 100 Lactab and Eloquine-250) was considered non-equivalent to the reference product with respect to the rate (tmax, Cmax) and extent (AUC0–48h, AUC0–7days, total AUC) of mefloquine absorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002280050008
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    The [HLA-B18, F1C30, DR3] Conserved Extended Haplotype Carries a Susceptibility Gene for IgD Deficiency (2000)
    Springer
    Journal of clinical immunology 20 (2000), S. 216-220 
    Details
    ISSN: 1573-2592
    Keywords: IgD deficiency ; MHC ; extended haplotype ; Basques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We showed previously that the conserved extended MHC haplotype [HLA-B8, SC01, DR3] carries recessive susceptibility genes for IgA and IgG4 deficiency and dominant genes for IgD and IgG3 deficiency. [HLA-B18, F1C30, DR3] has similar class II and III regions to [HLA-B8, SC01, DR3] and is common in the Basques. We therefore studied serum immunoglobulin concentrations in Basque homozygotes, heterozygotes, and noncarriers of (F1C30, DRB1*0301, DRB3*02, DQA1*0501, DQB1*0201) (F1C30, DR3). As shown by others, no subjects were deficient in IgA, IgM, or IgG subclasses. In contrast, 29% of homozygotes and three of seven double heterozygotes with (SC01, DRB1*0301, DRB3*0101, DQA1*0501, DQB1*0201) (presumed homozygotes for IgD deficiency susceptibility genes) were IgD deficient. Thus, 32% of presumed homozygotes were IgD deficient compared with 1.6% of noncarriers. Of haplotype heterozygotes, 25% were IgD deficient. The high frequency of IgD deficiency in both homozygotes and heterozygotes for (F1C30, DR3) suggests a partially penetrant dominant susceptibility gene for IgD deficiency on [HLA-B18, F1C30, DR3].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006693614974
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    Paper (German National Licenses)
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