EP0569415A1 - Pharmaceutical combination for the prevention and treatment of postmenopausal osteoporosis - Google Patents
Pharmaceutical combination for the prevention and treatment of postmenopausal osteoporosisInfo
- Publication number
- EP0569415A1 EP0569415A1 EP92903484A EP92903484A EP0569415A1 EP 0569415 A1 EP0569415 A1 EP 0569415A1 EP 92903484 A EP92903484 A EP 92903484A EP 92903484 A EP92903484 A EP 92903484A EP 0569415 A1 EP0569415 A1 EP 0569415A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- estrogens
- ipriflavone
- treatment
- day
- pharmaceutical composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/565—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol
Definitions
- Osteoporosis is one of the major health problems in Western world, both for its high social cost and for the damages it brings about in patients, causing fractures in particular in forearm bones, in femur and in vertebrae.
- osteoporosis is characterized by a quantitative decrease in the amount of the bone, which means that the quality of bone tissue is normal, but it is insufficient; hence the increase of bone fragility.
- Osteoporosis is especially frequent in postmenopausal women, in relation with a decrease on ovaric function, and it is related to a deficit of estrogens. Therefore, estrogens have represented, and they still represent, a good therapeutic protection in the prevention of postmenopausal osteoporosis, since they slow down the bone loss and decrease the fracture rate.
- the use of estrogens in the treatment of postmenopausal symptoms is especially preferred, since it is useful not only to contrast and balance the loss of bone mineral content, but also to control climacteric disorders (vasomotor, neuropsychic , genitourinary disorders).
- climacteric disorders vasomotor, neuropsychic , genitourinary disorders.
- conjugated estrogens ar mainly used, whose minimal effective daily dose i known to be 0.625 mg, even though literature report that a dose of 0.300 mg can be sufficient for th control of bone mass loss, if combined to an adequat calcium supply.
- estrogens such as acute and chronic hepatopathies, cerebral vascular pathology and thromboembolic pathology, hypertension, mammary and endometrium neoplastic disease, and several relative contra- indications, such as cholecystopathies, endometriosis, fibrocystic mastopathy, uterine fibromyomatosis, diabetes, obesity, dyslipidemias, cardiocirculatory insufficiency, epilepsy.
- estrogens are usually combined with a progestinic preparation that would exert a protecting action at endometrium level.
- Progestinic preparations cause important side-effects on cardiovascular system, as well as changes of the serum lipid concentrations.
- a drug that recently turned out to be effective in prevention and treatment of postmenopausal and senile osteoporosis is ipriflavone, a compound having a complex mechanism of action that, anyhow, seems to exert a direct inhibition on bone reabsorption. Unlike other isoflavones, ipriflavone does not exert estrogen activity.
- Naloxone is commonly used to evaluate the stimulation of endogenous opioid system exerted by estrogens in postmenopausal women.
- Ipriflavone did not affect LH and FSH basal levels, nor, unlike what happened in a control group of
- Yamazi et al. (Life Sci. vol. 38, pages 1535-1541) also determined the effects of ipriflavone increasin doses on calcitonin secretion in ovariectomized rats, in the presence and in the absence of estrogens, showing that ipriflavone, in the presence of the estrogen, stimulates calcitonin secretion.
- Ipriflavone was administered orally, the estrogen subcutaneously.
- ipriflavone at least partially, had mechanism inhibiting bone mass loss mediated by an increase in calcitonin secretion in the presence of estrogens.
- the effects and possible interferences of ipriflavone and estrogens combination were never investigated in animals, nor in man.
- ipriflavone can favourably be administered in combination with estrogens, either in the free or conjugated or esterified form, for a more effective and safer therapy of the complex postmenopausal symptoms.
- the Applicant could evidence that ipriflavone, which is per se active on bone metabolism and able to stop mineral bone loss, when administered at normal therapeutic dosages in combination with estrogens not only does not interfere with the estrogen actions, but it dramatically reduces the required dosage of the latter, while keeping the effectiveness thereof in the control of climacteric symptoms.
- Each group was treated according to a different therapeutic scheme: - group 1: natural conjugated estrogens (CE) 0.3 mg/day + placebo
- a control group was administered with placebo only.
- Ipriflavone and placebo were not distinguishable and were compared in double-blind conditions.
- the combination of the two active ingredients can be carried out either extemporarily, by administering the two drugs separately, simultaneously or sequentially, or using unitary pharmaceutical compositions containing the two combined drugs.
- suitable packages will be prepared in form of kit-of-parts containing separate administration units for each drug, which units being sufficient to a given treatment time.
- novel pharmaceutical compositions will be used containing the two active ingredients in a single unit-dose.
- compositions are reported hereinbelow.
- the estrogen unit dose is indicated in 0.15 mg or 0.30 mg for sake of simplicity and that of ipriflavone in 600 mg, any other estrogen or ipriflavone dosage (higher, intermediate or lower), as far as it is effective and non-toxic, being comprised within the scope of the invention.
- EXAMPLE 1 Unitary composition of soft-gelatin capsules containing as the active ingredient 300 mg of ipriflavone in combination with 0.15 mg of conjugated estrogens.
- Hydrogenated vegetable oils 70.00 mg EXAMPLE 3.
- Ipriflavone is provided in the form of 200 mg capsules, to be administered 3 times a day, at meals. Recently, two novel pharmaceutical compositions containing ipriflavone have been prepared.
- the first one consists of soft-gelatin capsules, each containing 300 mg of ipriflavone, to be administered twice a day; the other one consists of squeezable capsules containing 600 mg of ipriflavone, to be administered only once a day, during the evening meal.
- the present invention also relates to pharmaceutical compositions containing the two active ingredients at set dosages, namely:
- Ipriflavone 300 mg capsules: 2 capsules/day, t be taken at the two main meals + 0.15-0.30 mg o estrogens to be taken after the evening meal.
- Ipriflavone 300 mg capsule: 1 capsule/day, to b taken at the noon meal + 1 capsule prepare according to the examples of the invention, containing 300 mg of ipriflavone in a se combination with 0.15-0.30 mg of estrogens, to b taken after the evening meal.
- a combination product of ipriflavone with very low doses of estrogens which doses are per se ineffective in preventing bone mass loss but active in controlling climacteric symptoms
- a product can be prepared in a variety of ways using the estrogens in all of the possibl administration forms, including transdermic patches.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI910253A IT1244697B (it) | 1991-02-01 | 1991-02-01 | Associazione farmaceutica per la prevenzione e il trattamento dell'osteoporosi post-menopausale |
ITMI91025 | 1991-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0569415A1 true EP0569415A1 (en) | 1993-11-18 |
Family
ID=11358374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92903484A Ceased EP0569415A1 (en) | 1991-02-01 | 1992-01-28 | Pharmaceutical combination for the prevention and treatment of postmenopausal osteoporosis |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0569415A1 (it) |
AU (1) | AU1188492A (it) |
CA (1) | CA2101547A1 (it) |
HU (1) | HUT64848A (it) |
IE (1) | IE920219A1 (it) |
IT (1) | IT1244697B (it) |
NZ (1) | NZ241418A (it) |
WO (1) | WO1992013538A1 (it) |
ZA (1) | ZA92661B (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693927A4 (en) * | 1993-04-16 | 1997-05-28 | Univ Tufts Med | METHOD FOR TREATING MENAUPOSIC AND PREMENSTRUAL SYMPTOMS |
HU212932B (en) * | 1993-08-02 | 1996-12-30 | Chinoin Gyogyszer Es Vegyeszet | Parmaceutical composition containing ipriflavone, hydroxyapatit and tricalciumphosphate for treating lack of bones and process for producing the composition |
US5554601A (en) * | 1993-11-05 | 1996-09-10 | University Of Florida | Methods for neuroprotection |
US6319914B1 (en) | 1993-11-05 | 2001-11-20 | Apollo Biopharmaceuticals, Inc. | Cytoprotective effect of polycyclic phenolic compounds |
US5506211A (en) * | 1994-05-09 | 1996-04-09 | The Uab Research Foundation | Genistein for use in inhibiting osteroclasts |
US6339078B1 (en) | 1999-07-20 | 2002-01-15 | University Of Florida Research Foundation, Inc. | Methods of prevention and treatment of ischemic damage |
US6326365B1 (en) | 1999-07-20 | 2001-12-04 | Apollo Biopharmaceutics, Inc. | Methods of prevention and treatment of ischemic damage |
JP2004524354A (ja) * | 2001-03-16 | 2004-08-12 | ワイス | エストロゲン補充療法 |
EP2415469A1 (en) * | 2006-10-24 | 2012-02-08 | David W. Krempin | Anti-Resorptive and Bone Building Dietary Supplements and Methods of Use |
-
1991
- 1991-02-01 IT ITMI910253A patent/IT1244697B/it active IP Right Grant
-
1992
- 1992-01-24 IE IE021992A patent/IE920219A1/en unknown
- 1992-01-27 NZ NZ241418A patent/NZ241418A/xx unknown
- 1992-01-28 AU AU11884/92A patent/AU1188492A/en not_active Abandoned
- 1992-01-28 CA CA002101547A patent/CA2101547A1/en not_active Abandoned
- 1992-01-28 WO PCT/EP1992/000174 patent/WO1992013538A1/en not_active Application Discontinuation
- 1992-01-28 HU HU9302183A patent/HUT64848A/hu unknown
- 1992-01-28 EP EP92903484A patent/EP0569415A1/en not_active Ceased
- 1992-01-30 ZA ZA92661A patent/ZA92661B/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9213538A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1992013538A1 (en) | 1992-08-20 |
ZA92661B (en) | 1992-10-28 |
CA2101547A1 (en) | 1992-08-02 |
IE920219A1 (en) | 1992-08-12 |
AU1188492A (en) | 1992-09-07 |
HUT64848A (en) | 1994-03-28 |
ITMI910253A0 (it) | 1991-02-01 |
HU9302183D0 (en) | 1993-10-28 |
ITMI910253A1 (it) | 1992-08-01 |
IT1244697B (it) | 1994-08-08 |
NZ241418A (en) | 1993-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19930727 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE |
|
17Q | First examination report despatched |
Effective date: 19931217 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19950331 |