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    • 2. 发明申请
    • Novel IGF-1 composition and its use
    • 新型IGF-1组合物及其用途
    • US20050266046A1
    • 2005-12-01
    • US11195008
    • 2005-08-02
    • Bret ShirleyManinder Hora
    • Bret ShirleyManinder Hora
    • A61K9/00A61K9/16A61K38/30A61K9/22
    • A61K38/30A61K9/0024A61K9/1647A61K9/1694
    • A highly concentrated, low salt-containing, biologically active syrup form of IGF-I or variant thereof and methods for its preparation are provided. This novel syrup form of IGF-I has an IGF-I concentration of at least about 250 mg/ml, a density of about 1.0 g/ml to about 1.2 g/ml, and a viscosity of about 13,000 centipoise (cps) to about 19,000 cps, as measured at ambient temperature (23° C.). The IGF-I syrup is prepared by precipitating or partitioning IGF-I from solution, preferably by adjusting the solution pH or by use of a solubility enhancer to concentrate IGF-I in solution followed by removal of the solubility enhancer. The precipitated syrup is useful as a means of storing IGF-I in a stable form and as a means of preparing compositions comprising biologically active IGF-I. Pharmaceutical compositions and kits comprising this concentrated IGF-I syrup are provided. The precipitated IGF-I syrup, IGF-I reconstituted from the IGF-I syrup, pharmaceutical compositions, and kits are useful in IGF-I therapy directed to IGF-I-responsive conditions.
    • 提供了高浓度,低含盐,生物活性糖浆形式的IGF-I或其变体及其制备方法。 IGF-I的这种新型糖浆形式具有至少约250mg / ml的IGF-I浓度,约1.0g / ml至约1.2g / ml的密度,约13,000厘泊(cps)至约 在环境温度(23℃)下测量的19,000cps。 IGF-I糖浆通过从溶液中沉淀或分配IGF-I来制备,优选通过调节溶液pH或通过使用溶解度增强剂将IGF-I浓缩在溶液中,然后除去溶解度增强剂。 沉淀的糖浆可用作以稳定形式存储IGF-I的手段,并且作为制备包含生物活性IGF-I的组合物的手段。 提供了包含该浓缩的IGF-1糖浆的药物组合物和试剂盒。 从IGF-I糖浆重建的沉淀的IGF-1糖浆,IGF-I,药物组合物和试剂盒可用于针对IGF-1反应性条件的IGF-1治疗。
    • 5. 发明授权
    • High and low load formulations of IGF-I in multivesicular liposomes
    • IGF-I在多泡脂质体中的高负荷和低负荷配方
    • US06306432B1
    • 2001-10-23
    • US08925531
    • 1997-09-08
    • Bret ShirleyManinder HoraQiang YeNandini KatreJohn Asherman
    • Bret ShirleyManinder HoraQiang YeNandini KatreJohn Asherman
    • A61K9127
    • A61K9/1277A61K38/30
    • Disclosed are multivesicular liposomes (MVLs) containing IGF-I with substantially full bioavailability, wherein the loading of the IGF-I into the liposomes is modulated by adjusting the osmolarity of the aqueous component into which the agents are dissolved prior to encapsulation. In the making of MVLs, the process involves dissolving the IGF-I, an osmolarity excipient, and a pH modifying agent sufficient to solubilize the IGF-I in a first aqueous component used during manufacture of the MVLs. To increase the loading of the IGF-I, the osmolarity of the aqueous component used during manufacture of the MVLs is reduced, whereas the osmolarity of the aqueous component is increased to obtain the low load formulations. The rate of release of the active agent into the surrounding environment in which the liposomes are introduced can be simultaneously controlled by incorporating into the lipid component used in the formulation at least one long chain amphipathic lipid. Use of the long chain amphipathic lipid in the lipid component is particularly helpful in controlling the release rate from high drug load formulations.
    • 公开了含有基本上具有完全生物利用度的IGF-I的多泡脂质体(MVL),其中通过在包封之前调节其中溶解有药剂的水性组分的渗透压,调节IGF-1进入脂质体的载体。 在制备MVL时,该方法包括将制备所述MVL的第一水性成分中的IGF-I,渗透性赋形剂和pH调节剂溶解在足以溶解IGF-I的第一水溶性成分中。 为了增加IGF-I的负载量,在制造MVL期间使用的水性组分的渗透压降低,而水性组分的渗透压增加以获得低负荷制剂。 引入脂质体的周围环境中活性剂的释放速率可以通过将至少一种长链两亲性脂质掺入用于制剂中的脂质组分中来同时控制。 在脂质组分中使用长链两亲脂质特别有助于控制高药物负荷制剂的释放速率。