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US Patent 5731338 - Controlled release pilocarpine delivery system

US Patent Issued on March 24, 1998
Estimated Patent Expiration Date: Icon_subject May 2, 2015Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

There is disclosed a method for treating a patient suffering from xerostomia, xerophthalmia or excessive intraocular pressure. The method comprises administering to said patient a therapeutically effective amount of pilocarpine, or a pharmaceutically acceptable salt thereof, in an amount sufficient to maintain a blood serum level of pilocarpine in said patient of from about 5 to about 40 ng/ml, for a period of at least 6 hours. Controlled release unit dosage forms containing pilocarpine are also disclosed.

Other References

  • Schuller et al., "Treatment of radiation side effects with oral pilocarpine" J. Surg. Oncol. (1989) 42:272-276
  • Severin, "Keatoconjunctivitis sicca " Vet. Clin. North Am. (1973) 3:407-422
  • Pavan-Langston, "Potential use of ocular-insert therapy in dry eyes" Int. Opthalmol. Clin. (1973) 13:231-238
  • Deshpande et al., "Sustained release ophthalmic formulations of pilocarpine" J. Pharm. Pharmacol. (1988) 41:197-200
  • Fox et al., "Pilocarpine treatment of salivary gland hypofunction and dry mouth (Xerostomia)" Arch. Intern. Med. (1991) 151:1149-1152
  • Fox et al., "Xerostomia: evaluation of a symptom with increasing significance" J. Am. Dent. Assoc, (1985) 110:519-525
  • Chencharick et al., "Nutritional consequences of the radiotherapy of head and neck cancer" Cancer (1983) 51:811-815
  • Fox, "Management of salivary gland hypofunction and dry mouth (xerostomia)" Head and Neck Canceer, Fee et al., eds., (1990) pp. 322-324
  • Fox, "Systemic therapy of salivary gland hypofunction" J. Dent. Res. (1987) 66:689-692
  • LeVeque et al., "A multicenter, radomized, double-blind, placebo-controlled, dose-titration study of oral pilocarpine for treatment of radiation-induced xerostamia in head and neck cancer patients" J. Clin. Oncol. (1993) 11:1124-1131
  • Johnson et al., "Oral pilocarpine for post-irradiation xerostomia in patients with head and neck cancer" N. Engl. J. Med. (1993) 329:390-395
  • Greenspan et al., "Effectiveness of pilocarpine in postradiation xerostomia" Cancer (1987) 59:1123-1125
  • Dawes, "The composition of human saliva secreted in response to a gustatory stimulus and to pilocarpine" J. Physiol. (London) (1966) 183:360-368
  • Mandel et al., "The effect of pharmacologic agents on salivary secretion and composition. II. Isoproterenol, alpha and beta adrenergic blockers" J. Oral. Ther. Pharmacol. (1968) 4:260-269
  • Fox et al., "Pilocarpine for the treatment of xerostomia associated with salivary gland dysfunction" Oral Surg. Oral Med. Oral Pathol. (1986) 61:243-248
  • Rhodus et al., "Effects of pilocarpine on salivary flow in patients with Sjogren's syndrome" Oral Surg. Oral Med. Oral pathol. (1991) 72:545-549
  • Greco et al., "Systemic pilocarpine toxicity in the treatment of angle closure glaucoma" Ann. Opthalmol. (1973) 5:57-59
  • Kastl, "Inadvertent systemic injection of pilocarpine. Case report" Arch. Opthalmol. (1987) 105:28-29
  • Littmann et al., "Severe symptomatic atrioventricular block induced by pilocarpine eye drops" Arch. Intern. Med. (1987) 147:586-587
  • Weaver et al., "Pilocarpine disposition and salivary flow responses folowing intravenous administration to dogs" Pharm. Res. (1992) 9:1064-1069
  • Valdez et al., "Interactions of the salivary and gastrointestinal systems. II Effects of salivary gland dysfunction on the gastrointestinal tract" Dig. Dis. (1991) 9:210-218
  • Hughes et al., "Oral-pharyngeal dysphagia: A common sequela of salivary gland dysfuntion" Dysphagia (1987) 1:173-177
  • Caruso et al., "Objective measures of swallowing in patients with primary Sjogren's syndrome" Dysphagia (1989) 4:101-105
  • Helm, "Role of saliva in esophageal function and disease" Dysphagia (1989) 4:76-84
  • Korsten et al., "Chronic xerostomia increases esophageal acid exposure and is associated with esophageal injury" Am. J. Med. (1991) 90:701-706
  • Lehr et al., "A surface energy analysis of mucoadhesion: Contact angle measurements on polycarbophil and pig intestinal mucosa in physiologically relevant fluids" Pharm. Res. (1992) 9:70-75
  • Abstract of Mamtani et al., "Comparison of total costs of administrating calcium polycarbophil and psyllium mucilloid in an institutional setting" Clin. Therap. (1990) 12:22-25
  • Physician's Desk Reference for Ophthalmology, Walsh, J.B. et al., eds., 16th Edition (1988) pp. 3,1

Inventor

Assignee

Application

No. 433903 filed on 05/02/1995

US Classes:

514/397, Additional hetero ring514/912OPHTHALMIC

Field of Search

514/397, Additional hetero ring514/912OPHTHALMIC

Examiners

Primary: Fay, Zohreh

Attorney, Agent or Firm

US Patent References

3640741, 4151270, Chewing gum composition
Issued on: 04/24/1979
Inventor: Ream ,   et al.
4209505, Pilocarpine mouthwash for dry mouth relief
Issued on: 06/24/1980
Inventor: Mikhail
4438100, Sterilized preserved, stable mucine-containing solutions
Issued on: 03/20/1984
Inventor: Balslev ,   et al.
4615697, Bioadhesive compositions and methods of treatment therewith
Issued on: 10/07/1986
Inventor: Robinson
4820506, Salivary stimulant
Issued on: 04/11/1989
Inventor: Kleinberg ,   et al.
4900552, Mucoadhesive buccal dosage forms
Issued on: 02/13/1990
Inventor: Sanvordeker, et al.
4906455, Method for treating xerostomia employing chewing gum containing relatively insoluble, hydrophobic, food-grade organic acid
Issued on: 03/06/1990
Inventor: Hoerman
4917674, Mouth moisturizing device
Issued on: 04/17/1990
Inventor: Molinoff
4938963, Method and composition for treating xerostomia
Issued on: 07/03/1990
Inventor: Parnell
4988679Liquid sustained release composition
Issued on: 01/29/1991
Inventor: Chavkin, et al.

Foreign Patent References

  • WO 91/01130 WO. 02/09/1991
  • WO 92/00044 WO. 01/09/1992
  • WO 92/03124 WO. 03/09/1992

International Class

A61K 031/415

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