SBEβCD(スルホブチルエーテル-β-シクロデキストリン)関連論文紹介 / SBEβCD Paper Highlight 20260201版


created: 2026-01-31


論文1:Preclinical Safety Evaluation of BB106, a Novel Ketamine-Sulfobutylether-Beta-Cyclodextrin Salt, Following Subcutaneous Administration in Rats and Göttingen Minipigs

  • 著者:Ramot, Y; Andreini, I; Sacco, G; Becker, J; Bruhn, K; Manno, RA; Nyska, A
  • 掲載誌INTERNATIONAL JOURNAL OF TOXICOLOGY(2026)
  • 種別:Article; Early Access
  • キーワード:ketamine; subcutaneous administration; preclinical toxicology; minipig; rat; sulfobutylether-beta-cyclodextrin; SBECD; cyclodextrin; local tolerability; drug formulation; safety pharmacology
  • DOI:10.1177/10915818251414705

何の研究?(ひとことで)

酸性・高浸透圧で皮下投与に不向きなケタミン製剤を、SBEβCD(スルホブチルエーテルβCD)塩で“ほぼ生理的pH・等張”にし、ラットとミニブタで安全性を検証した前臨床研究

ポイント(やさしく)

  • 従来のケタミン塩酸塩溶液は酸性・高浸透圧になりやすく、皮下(SC)投与の刺激性が課題になり得る。
  • BB106はSBEβCDの多価陰イオン置換を“対イオン”として利用し、ケタミン–SBEβCD塩として近いpH・等張性を実現。
  • ラット(2週間反復皮下投与)とゲッチンゲン・ミニブタ(4週間連続皮下投与)で、局所反応は軽度かつ可逆、全身毒性の所見は限定的で、薬物動態も蓄積なしと報告。

応用イメージ(どこに役立つ?)

  • 疼痛・精神神経領域での“静脈投与以外”の選択肢(皮下投与など)の実現可能性評価
  • CD誘導体(SBEβCD)を用いた“刺激性を下げた薬物製剤”設計の具体例
  • 安全性データに基づく臨床開発(投与経路・用量設定)の基礎資料

用語ミニ解説

  • SBEβCD(Sulfobutylether‑β‑cyclodextrin):β-シクロデキストリンをスルホブチルエーテル化した誘導体。水溶性や電荷を利用して、薬物の溶解性・製剤特性を改善できる。
  • 皮下投与(SC):皮膚の下に薬剤を投与する方法。刺激性や浸透圧・pHの設計が重要になる。
  • 等張(Isotonicity):体液に近い浸透圧。注射時の刺激軽減に関係する。

参考文献(添付ファイル内)

  1. Ramot, Y; Andreini, I; Sacco, G; Becker, J; Bruhn, K; Manno, RA; Nyska, A. Preclinical Safety Evaluation of BB106, a Novel Ketamine-Sulfobutylether-Beta-Cyclodextrin Salt, Following Subcutaneous Administration in Rats and Göttingen Minipigs. INTERNATIONAL JOURNAL OF TOXICOLOGY (2026). DOI: 10.1177/10915818251414705

English

Paper 1: Preclinical Safety Evaluation of BB106, a Novel Ketamine-Sulfobutylether-Beta-Cyclodextrin Salt, Following Subcutaneous Administration in Rats and Göttingen Minipigs

  • Authors: Ramot, Y; Andreini, I; Sacco, G; Becker, J; Bruhn, K; Manno, RA; Nyska, A
  • Journal: INTERNATIONAL JOURNAL OF TOXICOLOGY (2026)
  • Type: Article; Early Access
  • Keywords: ketamine; subcutaneous administration; preclinical toxicology; minipig; rat; sulfobutylether-beta-cyclodextrin; SBECD; cyclodextrin; local tolerability; drug formulation; safety pharmacology
  • DOI: 10.1177/10915818251414705

One‑sentence summary

Preclinical safety of a ketamine–SBEβCD salt (BB106): enabling near‑physiologic, isotonic subcutaneous administration

Key points

  • Conventional ketamine HCl solutions can be acidic and hyperosmotic, which may limit tolerability for subcutaneous (SC) delivery.
  • BB106 uses sulfobutylether‑β‑cyclodextrin (SBEβCD) anionic substitutions as counterions to form a ketamine–SBEβCD salt at near‑physiologic pH and isotonicity.
  • Repeated‑dose rat studies and continuous SC infusion in Göttingen minipigs reported favorable local and systemic safety profiles with minimal, reversible injection‑site changes and no systemic target‑organ lesions.

Possible applications

  • Supporting development of SC ketamine alternatives for pain and neuropsychiatric indications
  • A concrete formulation strategy using cyclodextrin derivatives to improve tolerability
  • Nonclinical safety package informing clinical route/dose decisions

Reference (from the provided file)

  1. Ramot, Y; Andreini, I; Sacco, G; Becker, J; Bruhn, K; Manno, RA; Nyska, A. Preclinical Safety Evaluation of BB106, a Novel Ketamine-Sulfobutylether-Beta-Cyclodextrin Salt, Following Subcutaneous Administration in Rats and Göttingen Minipigs. INTERNATIONAL JOURNAL OF TOXICOLOGY (2026). DOI: 10.1177/10915818251414705