Clinical therapeutics
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Clinical therapeutics · Jul 2009
Randomized Controlled TrialBioequivalence of generic and branded subcutaneous enoxaparin: a single-dose, randomized-sequence, open-label, two-period crossover study in healthy Chinese male subjects.
Enoxaparin is a low-molecular-weight heparin (LMWH) indicated for antithrombosis. A branded formulation of subcutaneously administered enoxaparin has been available in China since 2000, and a generic formulation is being developed. In a literature search of the key term enoxaparin (publication years not restricted), no published data were identified regarding the pharmacokinetic profile of generic enoxaparin in Chinese subjects. ⋯ Based on the 90% CIs of anti-Xa and anti-IIa activities, heparin clotting assay results, and aPTT in these healthy Chinese male subjects, the test and reference formulations of enoxaparin 60 mg SC met the regulatory requirements for bio-equivalence. Both formulations were well tolerated.
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Clinical therapeutics · Jul 2009
Controlled Clinical TrialNilotinib for imatinib-resistant or -intolerant chronic myeloid leukemia in chronic phase, accelerated phase, or blast crisis: a single- and multiple-dose, open-label pharmacokinetic study in Chinese patients.
Nilotinib, an oral second-generation Bcr-Abi tyrosine kinase inhibitor, is approved in the United States and European Union for the treatment of Philadelphia chromosome-positive (Ph+), chronic-phase (CP) or accelerated-phase (AP) chronic myeloid leukemia (CML) resistant to or intolerant of prior therapy, including imatinib. Information on the pharmacokinetics of nilotinib in Chinese patients with CML is lacking, and regulatory requirements for registration of this drug are needed in China. ⋯ In this pharmacokinetic study in Chinese patients with CML resistant to or intolerant of imatinib, nilotinib 400 mg BID was rapidly absorbed after a single dose and multiple doses. The steady-state pharmacokinetic properties in this population were consistent with those reported previously in white patients with CML.
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Clinical therapeutics · Jul 2009
Randomized Controlled Trial Comparative StudyBioequivalence of two formulations of glucosamine sulfate 500-mg capsules in healthy male Chinese volunteers: an open-label, randomized-sequence, single-dose, fasting, two-way crossover study.
Glucosamine sulfate is used for the treatment of arthrosis, especially osteoarthritis of the knee joint. The available evidence suggests differences in its pharmacokinetics in Chinese subjects compared with non-Chinese subjects. ⋯ In this small study in healthy male Chinese volunteers, a single 500-mg dose of the test formulation met the SFDA's regulatory definition for bioequivalence to the reference formulation. Both formulations were well tolerated.
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Clinical therapeutics · Jul 2009
Multicenter StudyPharmacokinetics of conivaptan hydrochloride, a vasopressin V(1A)/V(2)-receptor antagonist, in patients with euvolemic or hypervolemic hyponatremia and with or without congestive heart failure from a prospective, 4-day open-label study.
Conivaptan is a nonpeptide vasopressin V(1A)/V(2)-receptor antagonist that produces a controlled increase in serum sodium concentration in hospitalized patients with euvolemic or hyper-volemic hyponatremia. ⋯ The results of this study suggest that the pharmacokinetics of conivaptan 20 and 40 mg/d do not differ by volume status or the presence or absence of congestive heart failure.