WO2005007239A1 - Uso de la dapsona como neuroprotector en el infarto cerebral - Google Patents
Uso de la dapsona como neuroprotector en el infarto cerebral Download PDFInfo
- Publication number
- WO2005007239A1 WO2005007239A1 PCT/MX2004/000018 MX2004000018W WO2005007239A1 WO 2005007239 A1 WO2005007239 A1 WO 2005007239A1 MX 2004000018 W MX2004000018 W MX 2004000018W WO 2005007239 A1 WO2005007239 A1 WO 2005007239A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dapsone
- cerebral infarction
- patients
- infarction
- neuroprotector
- 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
- A61K31/13—Amines
- A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
-
- 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
- A61K31/13—Amines
- A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
- A61K31/136—Amines having aromatic rings, e.g. ketamine, nortriptyline having the amino group directly attached to the aromatic ring, e.g. benzeneamine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
Definitions
- the present invention aims to demonstrate the use of dapsone as the first effective treatment against the disabling consequences associated with cerebral infarction in these patients.
- Dapsone is a drug currently used in the chemo-therapeutic treatment of leprosy and in the prophylaxis against pneumocytis carinii pneumonia. Since leprosy is an increasingly rare condition, the therapeutic use of dapsone has been limited recently. Acute cerebral infarction is the third leading cause of death and the leading cause of disability in the world population. In view of the serious consequences that the cerebral infarction brings to society in terms of expenses for rehabilitation and measured care, it was decided to look for a new therapeutic agent more effective than the current ones, synthesizing the dapsone in a novel compound.
- the present invention aims to develop a therapeutic product for the treatment of acute cerebral infarction. This condition is widely distributed in the world population, with an incidence of 500,000 to 750,000 people affected annually, in the United States alone, so it was decided to seek other therapeutic alternatives more effective than the current ones.
- dapsone was synthesized in a compound with the following formula:
- the drug dapsone has ceased to be produced in the country since the 1980s in the form of a drug and the raw material is not produced either.
- the effective dose for dapsone is 0.013 m.moles / kg.
- Dapsone can be synthesized in various ways, but the following synthetic route is offered as an example. This synthesis was done in two steps:
- Example 1 Evaluation of the neuroprotective effect of dapsone in the model of acute cerebral infarction induced by occlusion of the middle cerebral artery of the rat.
- Dapsone was evaluated as a neuroprotector in the cerebral infarction model produced by occlusion of the middle cerebral artery.
- the drug was suspended in a viable vehicle.
- Permanent cerebral selective ischemia occurred in the animals by the introduction of an end-to-end suture thread through the carotid artery. All animals underwent continuous anesthesia during the surgical procedure with 1.5% Halothane, by means of a face mask. The animals were placed in dorsal recumbency, the anterior cervical region was fixed and shaved to make an incision in the midline that goes from the sternum handlebar to the region of the stemohyyoid muscle and was followed towards its lateral edge, identifying at this side the medial border of the sternocleidomastoid and the superficial cervical aponeurosis in its deep leaf, which was incised to expose the common carotid below and inside the caudal stomach of the digastric.
- a sharp dissection of the common carotid was carried out to the hypoglossal loop.
- the carotid bifurcation, the external carotid and its occipital and thyroid branches were identified, the latter two were ligated with 8-0 monofilament, as well as with electrocoagulation for subsequent cutting.
- the internal carotid was dissected to a length of approximately 5 mm and at that time the pterygopalatine artery was identified. In it, a microchip was placed or otherwise it was ligated with 6-0 monofilament.
- the animals were sacrificed with an overdose of sodium pentobarbital intraperitoneally and the brain was removed by craniectomy. Once removed, the brain was fixed in anhydrous alcohol for two weeks. The usual histological process was continued and 10 ⁇ m cuts were made, storing a cut every 200 ⁇ m. The latter were stained with the Hematoxylin-eosin technique. All the cuts were reviewed by a pathologist, who was blind to the treatment group, to determine the areas of ischemia macro and microscopically.
- each histological section was determined using a digital analysis system and a photographic amplifier. In all cases an amplification of 1: 10 was performed. Each cut was made 3 determinations: A) Total area, including ventricles B) Ventricular area C) Ischemia area, according to the pathologist's review. To determine the volume of injury, the following formula was used:
- V P (0.2 mm) 10
- Dapsone was administered in a single dose of 200 mg in suspension, orally. The suspension is stable in refrigeration at 4 ° C for up to one month.
- Dapsone was administered blindly to 15 patients, while another 15 patients were given an anti-acid suspension, as a placebo medication. Patients were randomized to one treatment or another, using random numbers, generated by a pocket calculator. Both medications were administered during the first twelve hours after cerebral infarction. As a result of these procedures, the clinical study was randomized, double blind and controlled with the use of placebo.
- NIH scale which quantifies the intensity of disorders caused by cerebral infarction. This scale was applied at the time of admission of the patient to the study (day zero) and at 2, 6 and 30 days after cerebral infarction. A heart attack is considered moderately severe or severe when the NIH scale shows a value greater than seven.
- Doses of dapsone in the range of 1 to 12.5 mg / kg were used, orally in the case of patients or intraperitoneally in the case of rats.
- the results of the NIH scale in the two groups of patients were statistically analyzed with a one-way analysis of variance (ANOVA) test, using as covariates the NIH Scale on the day of admission (zero day), as well as gender, age, blood pressure and other important clinical variables for the outcome of the patient.
- ANOVA analysis of variance
- Figure 1 shows the neurological test score as a function of the times after the production of the infarction in the rats.
- the results are expressed as the average of 4 independent experiments.
- D Dapsone (9,375 and 12.5 refers to doses in mg / kg, ip), * p ⁇ 0.05 (Kruskal-Wallis test followed by Mann-Withney test).
- the data of the neurological test in the rats show that the animals treated with the dapsone at the two doses used recover significantly from the ischemic lesion, compared with the control group.
- Figure 3 shows the NIH neurological scale score as a function of the times (in days) after administration of dapsone or placebo. .
- the results are expressed as the average of 15 patients per group +/- the standard error.
- D Dapsone, * p ⁇ 0.05, ** p ⁇ 0.01 (Variance Analysis Test, with covariates).
- dapsone is more effective than the drugs currently on the market for the treatment of acute cerebral infarction. This, with a preferred dose of dapsone in the range of 1 to 12.5 mg / kg, administered during the first 12 hours of acute cerebral infarction, although dapsone can also be administered in repeated doses.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Epidemiology (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Neurosurgery (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Organic Chemistry (AREA)
- Cardiology (AREA)
- Hospice & Palliative Care (AREA)
- Urology & Nephrology (AREA)
- Heart & Thoracic Surgery (AREA)
- Psychiatry (AREA)
- Vascular Medicine (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Mobile Radio Communication Systems (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Steroid Compounds (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006521015A JP5452844B2 (ja) | 2003-07-22 | 2004-03-16 | 脳梗塞における神経プロテクターとしてのダプソンの使用方法。 |
BRPI0412212-7A BRPI0412212A (pt) | 2003-07-22 | 2004-03-16 | uso da dapsona como neuroprotetor no infarto cerebral |
CA2533181A CA2533181C (en) | 2003-07-22 | 2004-03-16 | Use of dapsone as neuroprotector in the brain stroke |
EP04721040A EP1655055B1 (en) | 2003-07-22 | 2004-03-16 | Use of dapsone as a neuroprotector in cerebral infarction |
DE602004006633T DE602004006633T2 (de) | 2003-07-22 | 2004-03-16 | Verwendung von dapson als neuroprotektor bei zerebralinfarkt |
EA200600272A EA012174B1 (ru) | 2003-07-22 | 2004-03-16 | Применение дапсона в качестве нейропротектора при остром церебральном инфаркте |
US10/565,309 US8268893B2 (en) | 2003-07-22 | 2004-03-16 | Use of dapsone as a neuroprotector in cerebral infarction |
HK07104433.0A HK1098086A1 (en) | 2003-07-22 | 2007-04-25 | Use of dapsone as a neuroprotector in preparing medicament for brain stroke |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA/A/2003/006549 | 2003-07-22 | ||
MXPA03006549A MXPA03006549A (es) | 2003-07-22 | 2003-07-22 | Uso de la dapsona como neuroprotector en el infarto cerebral. |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005007239A1 true WO2005007239A1 (es) | 2005-01-27 |
WO2005007239B1 WO2005007239B1 (es) | 2005-05-06 |
Family
ID=34075071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/MX2004/000018 WO2005007239A1 (es) | 2003-07-22 | 2004-03-16 | Uso de la dapsona como neuroprotector en el infarto cerebral |
Country Status (15)
Country | Link |
---|---|
US (1) | US8268893B2 (es) |
EP (1) | EP1655055B1 (es) |
JP (1) | JP5452844B2 (es) |
CN (1) | CN100500246C (es) |
AT (1) | ATE362783T1 (es) |
BR (1) | BRPI0412212A (es) |
CA (1) | CA2533181C (es) |
DE (1) | DE602004006633T2 (es) |
EA (1) | EA012174B1 (es) |
EC (1) | ECSP066316A (es) |
ES (1) | ES2287713T3 (es) |
HK (1) | HK1098086A1 (es) |
MX (1) | MXPA03006549A (es) |
PT (1) | PT1655055E (es) |
WO (1) | WO2005007239A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2009004635A (es) * | 2009-04-29 | 2010-10-29 | Univ Autonoma Metropolitana | Formas farmaceúticas solubles de la n,n´-diamino-difenilsulfona para su uso óptimo en el tratamiento de diversas enfermedades. |
KR101875705B1 (ko) | 2011-12-07 | 2018-07-06 | 삼성전자주식회사 | 디아미노디페닐술폰을 포함하는 근육 소모 관련 질환의 예방 또는 치료용 약학적 조성물 |
CN104177610A (zh) * | 2013-05-27 | 2014-12-03 | 韩文毅 | 一种非线性的聚合物及其制备和用途 |
CN104177611A (zh) * | 2013-05-27 | 2014-12-03 | 韩文毅 | 一种非线性的聚合物及其制备和用途 |
CN104069091A (zh) * | 2014-07-09 | 2014-10-01 | 崔德华 | 氨苯砜在保护血脑屏障完整性中的应用 |
KR20160047318A (ko) * | 2014-10-22 | 2016-05-02 | 삼성전자주식회사 | 다프손을 포함하는, 개체의 부위에서 혈관신생을 자극시키기 위한 조성물 및 그의 용도 |
KR20200107899A (ko) * | 2019-11-16 | 2020-09-16 | 이종훈 | 알츠하이머병 혹은 뇌졸중의 뉴로인플라마섬의 치료제로서 디디에스 혹은 그 유도체 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5532219A (en) * | 1991-04-23 | 1996-07-02 | The University Of British Columbia | Dapsone and promin for the treatment of dementia |
EE200100027A (et) * | 1998-07-15 | 2002-06-17 | Jomaa Hassan | Fosfororgaanilised ühendid, neid sisaldav farmatseutiline preparaat ja nende kasutamine |
GB2362101A (en) * | 2000-05-12 | 2001-11-14 | Astrazeneca Ab | Treatment of chronic obstructive pulmonary disease |
-
2003
- 2003-07-22 MX MXPA03006549A patent/MXPA03006549A/es active IP Right Grant
-
2004
- 2004-03-16 ES ES04721040T patent/ES2287713T3/es not_active Expired - Lifetime
- 2004-03-16 CA CA2533181A patent/CA2533181C/en not_active Expired - Fee Related
- 2004-03-16 CN CNB2004800264451A patent/CN100500246C/zh not_active Expired - Fee Related
- 2004-03-16 EP EP04721040A patent/EP1655055B1/en not_active Expired - Lifetime
- 2004-03-16 BR BRPI0412212-7A patent/BRPI0412212A/pt not_active IP Right Cessation
- 2004-03-16 AT AT04721040T patent/ATE362783T1/de not_active IP Right Cessation
- 2004-03-16 PT PT04721040T patent/PT1655055E/pt unknown
- 2004-03-16 US US10/565,309 patent/US8268893B2/en not_active Expired - Fee Related
- 2004-03-16 JP JP2006521015A patent/JP5452844B2/ja not_active Expired - Fee Related
- 2004-03-16 WO PCT/MX2004/000018 patent/WO2005007239A1/es active IP Right Grant
- 2004-03-16 DE DE602004006633T patent/DE602004006633T2/de not_active Expired - Lifetime
- 2004-03-16 EA EA200600272A patent/EA012174B1/ru not_active IP Right Cessation
-
2006
- 2006-01-25 EC EC2006006316A patent/ECSP066316A/es unknown
-
2007
- 2007-04-25 HK HK07104433.0A patent/HK1098086A1/xx not_active IP Right Cessation
Non-Patent Citations (7)
Title |
---|
ALTAGRACIA, M. ET AL: "Dapsone administration prevents quinolinate-induced neurotoxicity in rats", PROCEEDINGS OF THE WESTERN PHARMACOLOGY SOCIETY , 37, 63 CODEN: PWPSA8; ISSN: 0083-8969, 1994, XP008030772 * |
BENCE A K ET AL: "Dapsone analogs as potential polyamine binding site modulators of the N-methyl-D-aspartate receptor complex", DRUG DEVELOPMENT RESEARCH 2000 UNITED STATES, vol. 51, no. 4, 2000, pages 268 - 272, XP008030778, ISSN: 0272-4391 * |
DATABASE MEDLINE [online] US NATIONAL LIBRARY OF MEDICINE (NLM), BETHESDA, MD, US; 1998, PRASS K ET AL: "Glutamate antagonists in therapy of stroke.", XP002281066, Database accession no. NLM12671283 * |
RESTORATIVE NEUROLOGY AND NEUROSCIENCE. 1998, vol. 13, no. 1-2, 1998, pages 3 - 10, ISSN: 0922-6028 * |
RÍOS CAMILO ET AL: "Neuroprotective effect of dapsone in an occlusive model of focal ischemia in rats.", BRAIN RESEARCH. 5 MAR 2004, vol. 999, no. 2, 5 March 2004 (2004-03-05), pages 212 - 215, XP001191238, ISSN: 0006-8993 * |
RODRIGUEZ ERIKA ET AL: "Dapsone prevents morphological lesions and lipid peroxidation induced by quinolinic acid in rat corpus striatum", TOXICOLOGY, vol. 139, no. 1-2, 29 November 1999 (1999-11-29), pages 111 - 118, XP001191132, ISSN: 0300-483X * |
SANTAMARÍA A ET AL: "Neuroprotective effect of dapsone against quinolinate- and kainate-induced striatal neurotoxicities in rats.", PHARMACOLOGY & TOXICOLOGY. DEC 1997, vol. 81, no. 6, December 1997 (1997-12-01), pages 271 - 275, XP008030776, ISSN: 0901-9928 * |
Also Published As
Publication number | Publication date |
---|---|
CA2533181A1 (en) | 2005-01-27 |
EP1655055B1 (en) | 2007-05-23 |
CN100500246C (zh) | 2009-06-17 |
ATE362783T1 (de) | 2007-06-15 |
CA2533181C (en) | 2012-08-07 |
MXPA03006549A (es) | 2004-03-18 |
JP5452844B2 (ja) | 2014-03-26 |
CN1852749A (zh) | 2006-10-25 |
EA200600272A1 (ru) | 2006-10-27 |
WO2005007239B1 (es) | 2005-05-06 |
EA012174B1 (ru) | 2009-08-28 |
DE602004006633D1 (de) | 2007-07-05 |
ES2287713T3 (es) | 2007-12-16 |
DE602004006633T2 (de) | 2008-01-31 |
BRPI0412212A (pt) | 2006-08-22 |
HK1098086A1 (en) | 2007-07-13 |
JP2006528175A (ja) | 2006-12-14 |
PT1655055E (pt) | 2007-08-31 |
US8268893B2 (en) | 2012-09-18 |
US20100063159A1 (en) | 2010-03-11 |
ECSP066316A (es) | 2006-10-25 |
EP1655055A1 (en) | 2006-05-10 |
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