CU24302B1 - FORMULATION OF DELAYED RELEASE DRUG - Google Patents

FORMULATION OF DELAYED RELEASE DRUG

Info

Publication number
CU24302B1
CU24302B1 CUP2014000124A CU20140124A CU24302B1 CU 24302 B1 CU24302 B1 CU 24302B1 CU P2014000124 A CUP2014000124 A CU P2014000124A CU 20140124 A CU20140124 A CU 20140124A CU 24302 B1 CU24302 B1 CU 24302B1
Authority
CU
Cuba
Prior art keywords
polymeric material
drug
core
inner layer
release
Prior art date
Application number
CUP2014000124A
Other languages
Spanish (es)
Other versions
CU20140124A7 (en
Inventor
Abdul Waseh Basit
González Roberto Carlos Bravo
Thomas Buser
Ana Cristina Freire
Frédéric Jean-Claude Goutte
Felipe José Oliveria Varum
Original Assignee
Tillotts Pharma Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP12166110.2A external-priority patent/EP2659881B1/en
Application filed by Tillotts Pharma Ag filed Critical Tillotts Pharma Ag
Publication of CU20140124A7 publication Critical patent/CU20140124A7/en
Publication of CU24302B1 publication Critical patent/CU24302B1/en

Links

Abstract

<p>La liberación retardada de un fármaco al colón se logra de una formulación de liberación retardada que comprende un núcleo y un recubrimiento para el núcleo. El núcleo comprende un fármaco y un recubrimiento que comprende una capa interior y una capa exterior. La capa exterior comprende una mezcla de un primer material polimérico que es susceptible a ataques por parte de la bacteria colónica, y un segundo material polimérico que tiene un umbral de pH en el intervalo de pH 6 a 8. La capa interior comprende un tercer material polimérico que es soluble en el fluido intestinal o en el fluido gastrointestinal, tal tercer material polimérico se selecciona de ácido policarboxílico al menos parcialmente neutralizado con 10% a 100% de los grupos ácido carboxílico de dicho polímero de ácido policarboxílico en forma de aniones carboxilato, y un polímero no iónico. En modalidades en donde el tercer material polimérico es un polímero no iónico, la capa interior comprende al menos un agente amortiguador y una base. Las ventajas de las formulaciones de acuerdo con la presente invención incluyen la liberación acelerada del fármaco cuando se expone a condiciones colónicas y la reducción o eliminación del efecto de los alimentos y/o alcohol en la liberación del fármaco después de la administración.</p><p> Delayed release of a drug to the colon is achieved from a delayed-release formulation comprising a core and a coating for the core. The core comprises a drug and a coating comprising an inner layer and an outer layer. The outer layer comprises a mixture of a first polymeric material that is susceptible to attacks by the colonic bacteria, and a second polymeric material that has a pH threshold in the range of pH 6 to 8. The inner layer comprises a third material polymeric which is soluble in the intestinal fluid or in the gastrointestinal fluid, said third polymeric material is selected from at least partially neutralized polycarboxylic acid with 10% to 100% of the carboxylic acid groups of said polycarboxylic acid polymer in the form of carboxylate anions, and a nonionic polymer. In embodiments where the third polymeric material is a non-ionic polymer, the inner layer comprises at least one buffering agent and a base. Advantages of the formulations according to the present invention include accelerated drug release when exposed to colonic conditions and reduction or elimination of the effect of food and / or alcohol on drug release after administration. </ P >

CUP2014000124A 2012-04-30 2013-04-29 FORMULATION OF DELAYED RELEASE DRUG CU24302B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261640217P 2012-04-30 2012-04-30
EP12166110.2A EP2659881B1 (en) 2012-04-30 2012-04-30 A delayed release drug formulation
PCT/EP2013/058921 WO2013164315A1 (en) 2012-04-30 2013-04-29 A delayed release drug formulation

Publications (2)

Publication Number Publication Date
CU20140124A7 CU20140124A7 (en) 2015-02-26
CU24302B1 true CU24302B1 (en) 2017-12-08

Family

ID=53365656

Family Applications (1)

Application Number Title Priority Date Filing Date
CUP2014000124A CU24302B1 (en) 2012-04-30 2013-04-29 FORMULATION OF DELAYED RELEASE DRUG

Country Status (1)

Country Link
CU (1) CU24302B1 (en)

Also Published As

Publication number Publication date
CU20140124A7 (en) 2015-02-26

Similar Documents

Publication Publication Date Title
CO7141433A2 (en) Delayed Release Drug Formulation
CU20160055A7 (en) FORMULATION OF DELAYED RELEASE DRUG
CL2017001989A1 (en) Delayed-release drug formulation. (divisional application 2795-2014)
CU24302B1 (en) FORMULATION OF DELAYED RELEASE DRUG
PE20160211A1 (en) DELAYED RELEASE DRUG FORMULATION