WO1992004029A1 - Composition containing silver sulfadiazine and benzocaine for use in the treatment of wounds following laser surgery - Google Patents
Composition containing silver sulfadiazine and benzocaine for use in the treatment of wounds following laser surgery Download PDFInfo
- Publication number
- WO1992004029A1 WO1992004029A1 PCT/CA1991/000307 CA9100307W WO9204029A1 WO 1992004029 A1 WO1992004029 A1 WO 1992004029A1 CA 9100307 W CA9100307 W CA 9100307W WO 9204029 A1 WO9204029 A1 WO 9204029A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- benzocaine
- silver sulfadiazine
- weight
- electrosurgery
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/63—Compounds containing para-N-benzenesulfonyl-N-groups, e.g. sulfanilamide, p-nitrobenzenesulfonyl hydrazide
- A61K31/635—Compounds containing para-N-benzenesulfonyl-N-groups, e.g. sulfanilamide, p-nitrobenzenesulfonyl hydrazide having a heterocyclic ring, e.g. sulfadiazine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Definitions
- This invention relates to novel topical compositions containing as active ingredients silver sulfadiazine and benzocaine for use in the treatment of wounds and the relief of pain.
- Silver sulfadiazine in an emollient cream base is the treatment of choice in most brrn centers for treating and preventing infections in wour: > .
- Background information on silver sulfadiazine may be found in United States Patent No. 3,761,590 - Research Corporation, September 27, 1973.
- Silver sulfadiazine is merchandised in association with the trade marks FLAMAZINE and SILVADENE.
- Benzocaine was selected because it is representative of some local anesthetics which are poorly soluble in water and consequently too slowly absorbed to be toxic. It can be applied directly to wounds and ulcerated surfaces where it remains localized for long periods of time to produce a sustained anesthetic action (reference Goodman and Gilman's "The Pharmacological Basis of Therapeutics", Seventh Edition, 1985, p.312) .
- Laser is one of the most effective surgical treatments for removing a great variety of skin lesions. Initially, the cost of the laser unit was a prohibitive factor; however, in recent years lasers became available at lower prices and in many practices their use is time shared. Another disadvantage of laser ablation was the extensive pain that patients experienced following surgical removal of
- SUBSTITUTE SHEET extensive lesions and those located in high pain intensity areas such as the lower genital skin.
- LEEP loop electrosurgical excision and fulguration procedure
- burns as defined herein refer to either accidentally or surgically caused burns and include first, second and third degree burns as discussed in the literature.
- a general object of the present invention is to provide a composition and a method for the treatment of wounds and the relief of pain involving the use of silver sulfadiazine/benzocaine formulations.
- a r'jre specific object of the invention is to establish a composition and an effective method of burn therapy involving the use of silver sulfadiazine/benzocaine formulations.
- Another object of the invention is the providing of a composition and a method for the treatment of wounds and the relief of pain resulting from surgical removal of lesions such as anogenital warts, carcinoma precursors, etc. , by the carbon dioxide laser and electrosurgical excision and fulguration procedure (LEEP) .
- the method comprises applying topically to the wound surface a novel composition containing as active ingredients silver sulfadiazine and benzocaine.
- Yet another object is to provide topical cream or lotion formulations containing up to 5% silver sulfadiazine and up to 20% benzocaine for the treatment of wounds and the relief of pain resulting from for example the surgical removal of lesions by carbon dioxide laser, as well as to provide a method of treatment using such formulations that will in all respects be superior to burn therapy treatment using silver sulfadiazine by itself.
- the present invention in general, provides a method
- SUBSTITUTE SHEET for the treatment of wounds and the relief of pain comprising applying topically to the wound surface a composition containing as active ingredients silver sulfadiazine and benzocaine.
- the present invention provides a composition for use in the treatment of wounds and the relief of pain, wherein said composition contains as active ingredients silver sulfadiazine and benzocaine.
- the active ingredients may, for example, be dispersed in an oil-in- water e olient cream emulsion.
- the composition may comprise, by weight, from about 1% to about 5% silver sulfadiazine and from about 5% to about 20% benzocaine; the composition may, in particular, contain from about 0.9% to about 1.1% silver sulfadiazine and from about 4.5% to about 5% benzocaine.
- a cream emulsion may include an emollient, a humectant and an emulsifier.
- SUBSTITUTE SHEET could compare the pain-relieving effect of Silcaine vs Flamazine on both laser treated and LEEP-ed regions in the same patient. Data on repair as well as post-treatment recurrences have also been obtained.
- the carbon dioxide laser and LEEP are among the most important and effective tools in a clinician's armamentarium for the removal of genital condylomata and carcinoma precursor lesions. Both genital warts and cancer precursors have reached epidemic proportions in current medical practice. Basic tissue interactions and technical aspects of laser treatment and LEEP have been published. The areas to undergo either laser treatment or LEEP are visualized at high magnification with the aid of a colposcope. The appropriate power to be used in a given case is set.
- the carbon dioxide laser light and the He-Ne guiding beam are aligned and the laser beam is moved horizontally and vertically across the treatment field. Vaporization of tissue is achieved because carbon dioxide laser energy is selectively absorbed by intracellular water; the over 100° heat generated by amplification of carbon dioxide photons instantaneously boils intracellular water, produces steam and results in cellular explosion by vaporization.
- the laser crater is cleaned from ashes (produced by thermo-coagulated water-free proteins in the
- thermo-coagulated tissue debris BSTITUTE SHEET cells
- the depth of lesional tissue vaporized is controlled by direct colposcopic visualization of the crater produced.
- appropriately chosen loop electrodes serve respectively to excise and fulgurate previously anesthetized anogenital condylomata.
- the cutting and coagulation power outputs are 36 and 50 watts respectively.
- the heat generated by rapid sparks of alternating current is absorbed by intracellular water as is laser generated energy, and the resulting steam explodes cells when cutting and superficially thermocoagulates them when fulguration is applied.
- the depths of excision and fulguration is controlled under the guidance of high magnification colposcopy and the escar produced after fulguration is wiped off with a wet cotton- tipped applicator.
- the depth of laser and LEEP craters ranges between 1mm and 2mm and extends into the papillary to superficial reticular dermis of the external anogenital skin. As such, a second degree surgical and a third degree histologic burn is produced.
- formulations of our novel product consisting of active ingredients in the specific amounts of 5% benzocaine and 1% silver sulfadiazine.
- active ingredients may, for example, be utilized in the following ranges:
- a preferred formulation is as follows:
- Mineral oil is an emollient and may be exchanged for other suitable emollients such as isopropyl myristate, pal itate or stearate; lanolin or lanolin derivatives; petrolatum, etc.
- Glycerine is a humectant, but others such as propylene glycol or sorbitol may also be used.
- Polysorbates and glyceryl stearate + PEG 100 distearate are emulsifiers but numerous others may be substituted.
- Stearyl alcohol is an emulsion stabilizer and thickener but others such as cetyl alcohol, stearic acid, xanthan gum, carbomers, cellulose gums, etc. can be also used in such formulations.
- Any suitable base cream or lotion could be used such as water-in-oil emulsions. Those described above are creams and of an oil-in-water type.
- the foregoing formulation has provided an unexpected bonus in that the antimicrobial property of the silver sulfadiazine plus benzocaine combination displays slightly enhanced antimicrobial properties to that of Flamazine.
- the results of the preliminary study and a more recent study involving clinical strain micro-organisms are tabulated below.
- the holes are completely filled with agar and the overlay evenly distributed. After solidification, the plates were inverted and incubated at 37°C for 24 hours. Clear zones around test wells was evidence that the formulation was active against the bacteria being evaluated while a hazy appearance around the well was indicative of bacteriostatic action. The diameters of the zones of inhibition reflected the degree of antimicrobial activity.
- the zones of inhibition values (mm) above represent single determinations. This study was repeated using the 1% silver sulfadiazine + 5% benzocaine and Flamazine formulations, twelve millimeter diameter wells instead of seven, and an average of " 125mg formulation per well.
- the micro-organisms used were obtained from American Type Culture Collection (ATCC) as well as from strains isolated and characterized from patients in clinical burn centers. The values below represent the average values of six determinations.
- the results demonstrate the enhancement effect of benzocaine on antimicrobial activity of silver sulfadiazine particularly against E.coli, Enterobacter cloacae, Listeria monocytogenes and MIcrococcus SP.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002024220A CA2024220A1 (en) | 1990-08-29 | 1990-08-29 | Composition containing silver sulfadiazine and benzocaine for use in the treatment of wounds following laser surgery |
CA2,024,220 | 1990-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992004029A1 true WO1992004029A1 (en) | 1992-03-19 |
Family
ID=4145839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1991/000307 WO1992004029A1 (en) | 1990-08-29 | 1991-08-28 | Composition containing silver sulfadiazine and benzocaine for use in the treatment of wounds following laser surgery |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0549606A1 (en) |
AU (1) | AU8411391A (en) |
CA (1) | CA2024220A1 (en) |
WO (1) | WO1992004029A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014161891A1 (en) * | 2013-04-02 | 2014-10-09 | Leo Pharma A/S | Ingenol mebutate in combination with laser therapy for the treatment of hyperkeratotic skin lesions |
US8932624B2 (en) | 2007-06-20 | 2015-01-13 | The Trustees Of Columbia University In The City Of New York | Bio-film resistant surfaces |
US9497975B2 (en) | 2011-12-06 | 2016-11-22 | The Trustees Of Columbia University In The City Of New York | Broad spectrum natural preservative composition |
US9511040B2 (en) | 2007-06-20 | 2016-12-06 | The Trustees Of Columbia University In The City Of New York | Skin and surface disinfectant compositions containing botanicals |
US9687429B2 (en) | 2007-06-20 | 2017-06-27 | The Trustees Of Columbia University In The City Of New York | Antimicrobial compositions containing low concentrations of botanicals |
US9968101B2 (en) | 2011-11-03 | 2018-05-15 | The Trustees Of Columbia University In The City Of New York | Botanical antimicrobial compositions |
US9981069B2 (en) | 2007-06-20 | 2018-05-29 | The Trustees Of Columbia University In The City Of New York | Bio-film resistant surfaces |
EP2552440B1 (en) * | 2010-03-30 | 2018-10-10 | Helperby Therapeutics Limited | Novel combination and use |
US10806144B2 (en) | 2011-11-03 | 2020-10-20 | The Trustees Of Columbia University In The City Of New York | Composition with sustained antimicrobial activity |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1240545A (en) * | 1967-07-17 | 1971-07-28 | Research Corp | Silver-containing therapeutic agents |
WO1989006962A1 (en) * | 1988-01-29 | 1989-08-10 | Konrad Minninger | Silver sulfadiazine-containing agent for topical external therapy |
-
1990
- 1990-08-29 CA CA002024220A patent/CA2024220A1/en not_active Abandoned
-
1991
- 1991-08-28 EP EP91914895A patent/EP0549606A1/en not_active Withdrawn
- 1991-08-28 AU AU84113/91A patent/AU8411391A/en not_active Abandoned
- 1991-08-28 WO PCT/CA1991/000307 patent/WO1992004029A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1240545A (en) * | 1967-07-17 | 1971-07-28 | Research Corp | Silver-containing therapeutic agents |
WO1989006962A1 (en) * | 1988-01-29 | 1989-08-10 | Konrad Minninger | Silver sulfadiazine-containing agent for topical external therapy |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8932624B2 (en) | 2007-06-20 | 2015-01-13 | The Trustees Of Columbia University In The City Of New York | Bio-film resistant surfaces |
US9511040B2 (en) | 2007-06-20 | 2016-12-06 | The Trustees Of Columbia University In The City Of New York | Skin and surface disinfectant compositions containing botanicals |
US9687429B2 (en) | 2007-06-20 | 2017-06-27 | The Trustees Of Columbia University In The City Of New York | Antimicrobial compositions containing low concentrations of botanicals |
US9981069B2 (en) | 2007-06-20 | 2018-05-29 | The Trustees Of Columbia University In The City Of New York | Bio-film resistant surfaces |
US10542760B2 (en) | 2007-06-20 | 2020-01-28 | The Trustees Of Columbia University In The City Of New York | Skin and surface disinfectant compositions containing botanicals |
EP2552440B1 (en) * | 2010-03-30 | 2018-10-10 | Helperby Therapeutics Limited | Novel combination and use |
US9968101B2 (en) | 2011-11-03 | 2018-05-15 | The Trustees Of Columbia University In The City Of New York | Botanical antimicrobial compositions |
US10806144B2 (en) | 2011-11-03 | 2020-10-20 | The Trustees Of Columbia University In The City Of New York | Composition with sustained antimicrobial activity |
US9497975B2 (en) | 2011-12-06 | 2016-11-22 | The Trustees Of Columbia University In The City Of New York | Broad spectrum natural preservative composition |
WO2014161891A1 (en) * | 2013-04-02 | 2014-10-09 | Leo Pharma A/S | Ingenol mebutate in combination with laser therapy for the treatment of hyperkeratotic skin lesions |
Also Published As
Publication number | Publication date |
---|---|
AU8411391A (en) | 1992-03-30 |
EP0549606A1 (en) | 1993-07-07 |
CA2024220A1 (en) | 1992-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0112852B1 (en) | Pharmaceutical gel composition | |
JP4010574B2 (en) | Topical skin preparation | |
CA2685321C (en) | Solubilized delivery system for topical anesthetics | |
US20060211766A1 (en) | Gelled immunomodulating topical compositions and a method of treating warts and other human papilloma virus skin infections | |
JPH08500092A (en) | Dermatological composition | |
Barnett | Linear porokeratosis: treatment with the carbon dioxide laser | |
US20030235627A1 (en) | Topical administration of pharmacologically active bases in the treatment of warts | |
JPH0466844B2 (en) | ||
RU2128503C1 (en) | Antiviral pharmaceutical emulsion of type "oil-in-water" | |
WO1992004029A1 (en) | Composition containing silver sulfadiazine and benzocaine for use in the treatment of wounds following laser surgery | |
CA2615912A1 (en) | Lotion preparation containing pyridonecarboxylic acid derivative | |
ES2221365T3 (en) | ANTISEPTIC TOPIC COMPOSITIONS AND METHODS. | |
US4518583A (en) | Hemorrhoid and anorectal disease treatment method | |
JPH06263644A (en) | Lithium remedy | |
US5391546A (en) | Composition comprising organo-silicon compounds for therapeutic use | |
JP3213189B2 (en) | Hyaluronic acid production promoter | |
KR0145678B1 (en) | A podophyllotoxin preparation containing triglycerides | |
EP1282429B1 (en) | Pharmaceutical gel composition | |
GB2263234A (en) | Malotilate for accelerating wound healing | |
EP1663195B1 (en) | Taurine bromamine for inhibiting pathogenic bacteria and fungi growth as well as in a microbicidal composition | |
JP2998901B2 (en) | Topical coolant for burn treatment | |
JPH05271226A (en) | Wound curing promoter | |
CA2141703C (en) | Mouthwash | |
US5977176A (en) | Compositions for the treatment of warts and herpes | |
US20110045096A1 (en) | Solubilized delivery system for topical anesthetics |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR CH CS DE DK ES FI GB HU JP KP KR LK LU MC MG MN MW NL NO PL RO SD SE SU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BF BJ CF CG CH CI CM DE DK ES FR GA GB GN GR IT LU ML MR NL SE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1991914895 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 1991914895 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1991914895 Country of ref document: EP |