Improvements in or relating to pharmaceutical compositions...

A - Human Necessities – 61 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61K 9/127 (2006.01)

Patent

CA 2587337

A pharmaceutical composition for local application is disclosed, said composition comprising a nucleic acid as a therapeutic agent, an excipient and a pharmaceutically acceptable vehicle therefor, said excipient comprising a liposome. The excipient comprises an amphoteric liposome having an isoelectric point between 4 and 7.4 and said composition is formulated to have a pH in the range 3 to 5. The composition may administered in the form of a colloidal suspension and may be buffered to the lower pH at the time of use by the addition of a suitable acidifying means to a substantially neutral suspension of the nucleic acid and excipient that may be more suitable for long-term storage of the composition. Alternatively, the composition may be lyophilised at the lower pH for subsequent reconstitution just prior to use with a suitable aqueous medium, such for example as substantially unbuffered water or saline.

L'invention concerne une composition pharmaceutique d'application locale, qui comprend un acide nucléique comme agent thérapeutique; un excipient et un véhicule pharmaceutiquement acceptable de l'excipient, lequel excipient comprend un liposome. L'excipient comprend un liposome amphotère dont le point isoélectrique est compris entre 4 et 7,4. Cette composition est formulée de façon à présenter un pH compris entre 3 et 5. La composition de l'invention peut être administrée sous la forme d'une supension colloïdale, et peut être tamponnée au pH inférieur au moment de l'utilisation, par adjonction d'un acidifiant approprié à une suspension sensiblement neutre de l'acide nucléique et de l'excipient pouvant convenir mieux pour un entreposage à long terme de la composition. En variante, la composition peut être lyophilisée au pH inférieur pour une reconstitution ultérieure juste avant usage avec un milieu aqueux approprié, tel que, par exemple, de l'eau ou une solution saline sensiblement non tamponnée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Improvements in or relating to pharmaceutical compositions... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improvements in or relating to pharmaceutical compositions..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improvements in or relating to pharmaceutical compositions... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1543570

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.