Abstract:
An anti-HIV tablet formulation comprising a core containing 0.1 to 1.5% by weight (w/w) of colloidal silicon dioxide and 0.4 to 0.9% by weight (w/w) of a lubricant, the balance of the core comprising darunavir, a disintegrant and a filler comprising a spray-dried mixture of microcrystalline cellulose and colloidal silicon dioxide, the core being optionally coated with a film coating.
Abstract:
The present invention relates to the use of carboxamide 4-[(4-pyridyl)amino]- pyrimidines as inhibitors of HCV replication as well as their use in pharmaceutical compositions aimed to treat or combat HCV infections.
Abstract:
Nucleotide-competing reverse transcriptase inhibitors (NcRTI) bind to the active site of HIV reverse transcriptase (RT) in competition with the next incoming nucleotide. To further investigate the impact of RT inhibitor resistance mutations on the activity of NcRTIs, the susceptibility of > 6000 recent clinical isolates for a prototype compound, NcRTI-1, was determined. Over 80% of the profiled clinical isolates remained susceptible for NcRTI-1 (FC 1700 of these viruses showed that the combination of active site mutations M184V + Y115F correlated most with resistance to NcRTI-1 (FC = 75). Analysis also indicated that the K65R mutation is associated with hypersusceptibility to NcRTI-1 and that it reverses the reduced susceptibility caused by 20 M184V. These findings were confirmed in SDM strains. This reciprocity between the K65R and M184V mutation is unparalleled among RT inhibitors. When replicating wild-type HIV-1 in the presence of NcRTI-1, M184V + Y115F were selected. In the presence of both NcRTI-1 and tenofovir, NcRTI-1 prevents the selection of K65R.
Abstract:
A method for improving the pharmacokinetics of drugs, which are metabolized by cytochrome P450 monooxygenase is disclosed. More specifically it relates to a method for improving the pharmacokinetics of retroviral protease inhibitors and in particular for improving the pharmacokinetics of human immunodeficiency virus (HIV) protease inhibitors. A pharmaceutical composition and its use in the manufacture of a medicament for the inhibition or treatment of an HIV infection or AIDS in a human being are also part of the invention.
Abstract:
The present invention provides a compound having the structure (I) and processes for the production thereof and the intermediates used in such process.
Abstract:
Methods of identifying a fusion inhibitor and inhibitors of gp41-mediated membrane fusion are disclosed. The methods comprise, for example, providing a first helical polypeptide comprising a sequence of IQN17 (SEQ ID NO: 1); providing a second helical polypeptide of 34 or less than 34 amino acids comprising the amino acid sequence W-X1-X2-W-X3-X4-X5-I, wherein X1, X2, X3, X4, and X5 are each independently chosen from any amino acid except proline; measuring, by capillary zone electrophoresis, the degree of complex formation between these peptides; and comparing the measured degree of complex formation to the degree in the presence of a test composition.
Abstract translation:公开了鉴定融合抑制剂和gp41介导的膜融合抑制剂的方法。 所述方法包括例如提供包含IQN17(SEQ ID NO:1)序列的第一螺旋多肽; 提供包含氨基酸序列W-X1-X2-W-X3-X4-X5-I的34个或小于34个氨基酸的第二螺旋多肽,其中X1,X2,X3,X4和X5各自独立地选自 除脯氨酸以外的任何氨基酸; 通过毛细管区带电泳测量这些肽之间的复合物形成程度; 并将测量的复合物形成程度与存在测试组合物的程度进行比较。
Abstract:
The present invention concerns the compounds having the formula (I) N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein R1 and R8 each are H, optionally substituted C1-6alkyl, C2-6alkenyl, C3-7cycloalkyl, aryl, Het1, Het2; R1 may also be a radical of formula (R11aR11b)NC(R10aR10b)CR9-; t is 0, 1 or 2; R2 is H or C1-6alkyl; L is -C(=O)-, -O-C(=O)-, -NR8-C(=O)-, -O-C1-6alkanediyl-C(=O)-, -NR8-C1-6alkanediyl-C(=O)-, -S(=O)2-, -O-S(=O)2-, -NR8-S(=O)2 ; R3 is C1-6alkyl, aryl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, or arylC1-4alkyl; R4 is H, C1-4alkylOC(=O), carboxyl, aminoC(=O), mono- or di(C1-4alkyl)aminoC(=O), C3-7cycloalkyl, C2-6alkenyl, C2-6alkynyl or optionally substituted C1-6alkyl; A is C1-6alkanediyl, -C(=O)-, -C(=S)-, -S(=O)2-, C1-6alkanediyl-C(=O)-, C1-6alkanediyl-C(=S)- or C1-6alkanediyl-S(=O)2-; R5 is H, OH, C1-6alkyl, Het1C1-6alkyl, Het2C1-6alkyl, optionally substituted aminoC1-6alkyl; R6 is C1-6alkylO, Het1, Het1O, Het2, Het2O, aryl, arylO, C1-6alkyloxycarbonylamino or amino; and in case -A- is other than C1-6alkanediyl then R6 may also be C1-6alkyl, Het1C1-4alkyl, Het1OC1-4alkyl, Het2C1-4alkyl, Het2OC1-4alkyl, arylC1-4alkyl, arylOC1-4alkyl or aminoC1-4alkyl; whereby each of the amino groups in the definition of R6 may optionally be substituted; -A-R6 is hydroxyC1-6alkyl; R5 and -A-R6 taken together with the nitrogen atom to which they are attached may also form Het1 or Het2. It further relates to their use as broadspectrum HIV protease inhibitors, processes for their preparation as well as pharmaceutical compositions and diagnostic kits comprising them. It also concerns combinations thereof with another anti-retroviral agent, and to their use in assays as reference compounds or as reagents.
Abstract:
A degradable, removable, pharmaceutical implant for the sustained release of one or more drugs in a subject, wherein the pharmaceutical implant is composed of a tube comprising an outer wall made of a degradable polymer completely surrounding a cavity, wherein the outer wall has a plurality of openings and wherein the cavity contains one or more sets of micro-particles, which micro-particles contain an active agent or a combination of two or more active agents, and wherein the size of the microparticles is selected such that the majority of the microparticles cannot pass through the openings.
Abstract:
The present invention relates to compounds that have CYP450 inhibiting properties and are therefore useful as boosters of certain drugs, i.e. they are able to increase at least one of the pharmacokinetic variables of certain drugs when co-administered. The invention further provides the use of said compounds as improvers of the bioavailability of certain drugs. Methods for the preparation of the compounds of the invention and pharmaceutical compositions are also provided.