Colonic delivery of drugs

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

424485, 424488, 514177, 514178, 514179, 514180, 514181, 514182, 514777, 514780, 514782, A61K 920, A61K 3156, A61K 4736

Patent

active

056562942

ABSTRACT:
Pharmaceutical compositions for orally delivering a therapeutically effective amount of a drug to the colon without significant release of the drug in the upper GI tract after oral administration of the composition are described. The composition comprises about 0.5% by weight to about 10% by weight of the drug that is useful in treating a colonic disorder or that is absorbed from the colon; about 40% by weight to about 80% by weight of a hydrocolloid gum obtainable from higher plants; and about 10% by weight to about 50% by weight of a pharmaceutically acceptable binder. The compositions are useful for treating colon disorders in human subjects by administering a suitable amount to a subject in need thereof. A particularly preferred aspect is the process for preparing such composition in the form of a tablet.

REFERENCES:
patent: 3629393 (1971-12-01), Nakamoto et al.
patent: 4389393 (1983-06-01), Schor et al.
patent: 4994276 (1991-02-01), Baichwal et al.
patent: 4999200 (1991-03-01), Casillan
patent: 5096714 (1992-03-01), Kuhrts
patent: 5108758 (1992-04-01), Allwood et al.
patent: 5128143 (1992-07-01), Baichwal et al.
patent: 5422121 (1995-06-01), Lehmann et al.
patent: 5445826 (1995-08-01), Kuhrts
patent: 5466469 (1995-11-01), Kuhrts
Adkin et al., "Colonic Transit of Different Sized Tablets in Healthy Subjects" Journal of Controlled Release (1993) 23:147-156.
Brondsted and Kopeck, "Hydrogels for Site-Specific Oral Drug Delivery: Synthesis and Characterization", Biomaterials (1991) 12:584-592.
Cummings, "Short Chain Fatty Acids in the Human Colon", Gut (1981), 22:763-779.
Damge et al., "New Approach for Oral Administration of Insulin With Polyalkylcyanoacrylate Nanocapsules as Drug Carrier" Diabetes (1968) 37:246-251.
Davis et al., "Transit of Pharmaceutical Dosage Forms Through the Small Intestine" Gut (1986) 27:886-892.
Feely et al., "Investigating the Gastrointestinal Transit of Controlled Release Mini-Matrices Using Gamma Scintigraphy", Proceed. Intern. Symp. Control. Rel. Bioact. Mater. (1985) 12:94-95.
Hardy et al., (1987) "Evaluation of an Enteric-Coated Delayed-Release 5-Aminosalicyclic Acid Tablet in Patients With Inflammatory Bowel Disease" Ailment. Pharmacol. Therap. (1987), 1:273-280.
Holt, et al., "Effect of Gel Fibre on Gastric Emptying and Absorption of Glucose and Paracetamol", Lancet (1979) 1:636-639.
Jain et al., "Controlled-Release Tablet Formulation of Isoniazid", Pharmazie (1992) 47:277-278.
Khosla et al., (1989) "Gastrointestinal Transit of Non-Disintegrating Tablets in Fed Subjects" International Journal of Pharmaceutics (1989) 53:107-117.
Kopecek, "Polymers for Colon-Specific Drug Delivery", Journal of Controlled Release (1992) 19:121-130.
Latymer et al., "Measurement of Transit Time of Digesta Through Sections of Gastrointestinal Tract of Pigs Fed with Diets Containing Various Sources of Dietary Fibre (Non-Starch Polysaccharides)" Arch. Anim. Nutr. Berlin (1990) 40:667-680.
Marvola et al., "Gastrointestinal Transit and Concomitant Absorption of Verapamil from a Single-Unit Sustained-Release Tablet", Drug Development and Industrial Pharmacy (1987) 13(9-11):1593-1609.
Miranda et al., "High-Fiber Diets in the Treatment of Diabetes Mellitus" Annals of Internal Medicine (1978) 88:482-486.
Moore et al., "Absorption Enhancement of Growth Hormone from the Gastrointestinal Tract of Rats", International Journal of Pharmaceutics (1986) 34:35-43.
McIntire et al., "Different Fibers Have Different Regional Effects on Luminal Contents of Rat Colon", Gastroenterology (1991) 101:1274-1281.
Price et al., "Characterization of Colonic Transit of Nondisintegrating Tablets in Healthy Subjects", Digestive Diseases and Sciences, (1993) 38(6):1015-1021.
Price et al., "The Effect of Meal Composition on the Gastrocolonic Response: Implications for Drug Delivery to the Colon" Pharmaceutical Research (1993) 10(5):722-726.
Rubinstein and Gliko-Kabir, "Synthesis and Swelling Dependent Enzymatic Degradation of Borax Modified Guar Gum for Colonic Delivery Purposes" S.T.P. Pharma Sciences (1995) 5:41-46.
Sakr and Elsabbagh, "Effect of Particle Size Distribution on the Disintegrating Efficiency of Guar Gum" Pharm. Ind. (1976) 38(8):732-734.
Salyers and Leedle, "Carbohydrate Metabolism in the Human Colon" Human Intestinal Microflora in Health and Disease, Chapter 6, pp. 129-146 (1983).
Spiller et al., "Emptying of the Terminal Ileum in Intact Humans: Influence of Meal Residue and Ileal Motility" Gastroenterology (1987) 92:724-729.
Trenev, "We Need Friendly Bacteria" Total Health (1988) 10:29-29.
Venter and Vorster, "Possible Metabolic Consequences of Fermentation in the Colon for Humans" Medical Hypotheses (1989) 29:161-166.
Waaler et al., "Biopharmaceutical Studies of Naftidrofuryl in Hydrocolloid Matrix Tablets" International Journal of Pharmaceutics (1992) 87:229-237.
Watanabe et al., "Factors Affecting Prednisolone Release from Hydrogels Prepared with Water-Soluble Dietary Fibers, Xanthan and Locust Bean Gums" Chem. Pharm. Bull. (1992) 40(2):459-462.
Woodley, "Peptidase Activity in the G.I. Tract: Distribution Between Luminal Contents and Mucosal Tissue", Proceed. Intern. Symp. Control. Rel. Bioct. Mater (1991) 18:337-338.
Yoshikawa et al., "Comparison of Disapearance from Blood and Lymphatic Delivery of Human Fibroblast Interferon in Rat by Different Administration Route", J. Pharmacobio-Dyn. (1985) 8:206-210.

LandOfFree

Say what you really think

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

Rating

Colonic delivery of drugs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Colonic delivery of drugs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Colonic delivery of drugs will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-158311

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