Strategies of targeting oral drug delivery systems to the colon and their potential use for the treatment of colorectal cancer.
Pharm Dev Technol
; 17(5): 521-40, 2012.
Article
en En
| MEDLINE
| ID: mdl-22681390
ABSTRACT
Colorectal cancer (CRC) is the third most common cause of cancer-related death in both men and women. Often, surgical intervention remains the choice in treating CRC. Traditional dosage forms used for treating CRC deliver drug to wanted as well as unwanted sites of drug action resulting in several adverse side effects. Targeted oral drug delivery systems are being investigated to target and deliver chemotherapeutic and chemopreventive agents directly to colon and rectum. Site-specific delivery of a drug to colon increases its concentration at the target site, and thus requires a lower dose with reduced incidence of side effects. The major obstacle to be overcome for successful targeting of drug to colon through oral route is that drug absorption/degradation must be avoided in stomach and small intestine before the dosage form reaches colon. The review includes discussion of physiological factors that must be considered when targeting drugs directly to colorectal region, an outline on drugs used for treatment and prevention of CRC, and a brief description of various types of colon-targeted oral drug delivery systems. The focus is on the assessment of various formulation approaches being investigated for oral colon-specific delivery of drugs used in the treatment and prevention of CRC.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
1_ASSA2030
/
6_ODS3_enfermedades_notrasmisibles
Problema de salud:
1_doencas_nao_transmissiveis
/
6_colon_rectum_cancers
/
6_mouth_oropharynx_cancers
Asunto principal:
Neoplasias Colorrectales
/
Sistemas de Liberación de Medicamentos
/
Colon
/
Antineoplásicos
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Pharm Dev Technol
Asunto de la revista:
FARMACIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Estados Unidos