ダルナビル

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H302：飲み込むと有害

  H315：皮膚刺激

  H319：強い眼刺激

  H335：呼吸器への刺激のおそれ

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

ダルナビル 価格

ダルナビル 化学特性,用途語,生産方法

• 用途

  抗HIV薬

• 効能

  抗ウイルス薬, HIVプロテアーゼ阻害薬

• 説明

  Darunavir is the latest weapon in the arsenal of agents to combat human immunodeficiency virus type 1(HIV-1). As an HIV-1 protease inhibitor, its mechanism of action involves blocking the cleavage of the gag and gag–pol polyproteins into functional proteins essential for the production of infectious progeny virus; the result is the production of immature, noninfectious viral particles. Compared to predecessor HIV protease inhibitors, darunavir retains activity against resistant stains, a critical factor with the continual emergence of multidrug- resistant (MDR) mutants. Despite experiencing a 13-fold reduction in binding to MDR HIV-1 protease, this binding is 1.5 orders of magnitude tighter than the first-generation protease inhibitors. Furthermore, darunavir exhibits less than a 10-fold decrease in susceptibility in cell culture against 90% of 3309 clinical isolates resistant to amprenavir, atazanavir, indinavir, lopinavir, nelfinavir, ritonavir, saquinavir, and tipranavir. In contrast, darunavir-resistant viruses display limited susceptibility to only tipranavir, suggesting limited cross-resistance between these two protease inhibitors. To avoid the issues of the peptide-based protease inhibitors, darunavir has evolved from a structure-based design effort to minimize peptidic features and reduce molecular weight and complexity.

• 化学的特性

  White Amorphous Solid

• 定義

  ChEBI: An N,N-disubstituted benzenesulfonamide bearing an unsubstituted amino group at the 4-position, used for the treatment of HIV infection. A second-generation HIV protease inhibitor, darunavir was designed to form robust interactions with the protease enzyme from many strains of HIV, including those from treatment-experienced patients with multiple resistance mutations to other protease inhibitors.

• 獲得抵抗性

  Darunavir is less affected than other protease inhibitors by mutations to resistance, but subgroups with more than 10 cumulative mutations show a >10-fold (median value) decrease in susceptibility. The major resistance mutations occur at positions 50 (150V), 54 (I50M/L), 76 (L76V) and 84 (I84V) of the protease gene.

• 応用例（製薬）

  A synthetic compound formulated as the ethanolate for oral use in combination with ritonavir.

• 薬物動態学

  Oral absorption: c. 82%
  C_max 600 mg once daily + ritonavir 100 mg twice daily: c. 6500 μg/L
  C_min 600 mg oral + ritonavir 100 mg twice daily: c. 3578 μg/L
  Plasma half-life: c. 15 h
  Volume of distribution: c. 131 L
  Plasma protein binding: c. 95%
  A single 600 mg dose given orally in combination with ritonavir 100 mg every 12 h increased the systemic exposure of darunavir approximately 14-fold. The relative bioavailability is 30% lower when administered with food in the presence of low-dose ritonavir. Distribution into human CSF, semen or breast milk has not yet been determined.
  At least three oxidative metabolites, mediated predominantly through CYP3A4, have been identified in humans; all are at least 10-fold less active than the parent compound against HIV. Around 80% and 14% of the dose is found in the feces and urine, respectively. It should be used with caution in mild–moderate hepatic impairment and avoided in patients with more severe impairment.

• 臨床応用

  Treatment of HIV infection (in combination with other antiretroviral drugs)

• 副作用

  In phase III studies the most common adverse events were diarrhea, nausea, headache and nasopharyngitis. Patients coinfected with hepatitis B or C did not have a higher incidence of adverse events.

ダルナビル 生産企業

Global(325)Suppliers

ダルナビル スペクトルデータ(¹HNMR)

206361-99-1, ダルナビル キーワード