METHOD OF INCREASING BIOAVAILABILITY AND/OR PROLONGING OPHTHALMIC ACTION OF A DRUG
    93.
    发明公开
    METHOD OF INCREASING BIOAVAILABILITY AND/OR PROLONGING OPHTHALMIC ACTION OF A DRUG 审中-公开
    方法以提高生物利用度和/或延长产品的眼科影响

    公开(公告)号:EP3179982A1

    公开(公告)日:2017-06-21

    申请号:EP15827671.7

    申请日:2015-07-24

    Abstract: The present invention relates to a method of increasing the bioavailability and/or prolonging ophthalmic action of a drug, the method comprising instilling into the eye an aqueous suspension comprising reversible clusters of drug loaded nano-resin particles, said clusters having a D50 value of at least 2 micrometer and said drug loaded nano-resin particles have a particle size distribution characterized in that the D90 value is 70 nanometer to 900 nanometer. The present invention further relates to an aqueous suspension comprising reversible clusters of drug loaded nano-resin particles, said clusters have a D50 value of at least 2 micrometers and said drug loaded nano-resin particles have a particle size distribution characterized in that the D90 value is 70 nanometers to 900 nanometers.

    Abstract translation: 本发明涉及提高的生物利用度和/或延长药物的眼用动作的方法,包括灌输wässrige悬浮液,其包含负载药物的纳米树脂颗粒的可逆簇的眼睛的方法,所述具有在D50值的簇 至少2微米和所述药物装载纳米树脂粒子具有在其特征做的D90值是70纳米至900纳米的颗粒尺寸分布。 本发明还涉及在wässrige悬浮液包含负载药物的纳米树脂颗粒的可逆集群,所述集群具有至少2微米,所述药物加载纳米树脂颗粒的D50值的颗粒尺寸分布在DASS模具D90值为特征的 是70纳米米至900纳米米。

    DRUG LOADED NANORESIN PARTICLES
    99.
    发明公开

    公开(公告)号:EP3328361A1

    公开(公告)日:2018-06-06

    申请号:EP16829974.1

    申请日:2016-07-27

    CPC classification number: A61K9/146 A61K9/0014 B82Y5/00

    Abstract: The present invention relates to nano-resin particles that are suitable for pharmaceutical use and their use in the pharmaceutical field. The present invention provides nano-sized resin particles having a particle size distribution characterized in that D90 value is between 200 nanometers to 900 nanometer and D10 value is not less than 50 nanometers, wherein the nano-resin particles are in pure form and safe for pharmaceutical use. The present invention further relates to pharmaceutical compositions comprising these purified nano-resin particles and their use in the treatment of diseases. The present invention further provides a process for preparing purified, nano-sized resin particles that are suitable for pharmaceutical use, the process comprising steps of: (i) washing an ion exchange resin and suspending in an aqueous liquid, (ii) subjecting the suspension of (i) to wet milling for a period such that the particles have a particle size distribution characterized in that the D90 value is between 200 nanometers to 900 nanometers and D10 value is not less than 50 nanometers, (iii) subjecting the suspension of (ii) to purification to remove impurities, (iv) drying the purified suspension to obtain nano-resin particles in the form of dry powder.

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