WO1998042872A1 - Estrogen and the mental state: molecular variations within the estrogen receptor gene modulate clinical susceptibility to depression - Google Patents
Estrogen and the mental state: molecular variations within the estrogen receptor gene modulate clinical susceptibility to depression Download PDFInfo
- Publication number
- WO1998042872A1 WO1998042872A1 PCT/US1998/005789 US9805789W WO9842872A1 WO 1998042872 A1 WO1998042872 A1 WO 1998042872A1 US 9805789 W US9805789 W US 9805789W WO 9842872 A1 WO9842872 A1 WO 9842872A1
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- WO
- WIPO (PCT)
- Prior art keywords
- depression
- estrogen receptor
- agent
- estrogen
- esr
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6893—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids related to diseases not provided for elsewhere
- G01N33/6896—Neurological disorders, e.g. Alzheimer's disease
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/74—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving hormones or other non-cytokine intercellular protein regulatory factors such as growth factors, including receptors to hormones and growth factors
- G01N33/743—Steroid hormones
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/156—Polymorphic or mutational markers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/30—Psychoses; Psychiatry
- G01N2800/304—Mood disorders, e.g. bipolar, depression
Definitions
- the present invention relates generally to the diagnosis and treatment of depression.
- BACKGROUND OF THE INVENTION Depression is a clinical disorder that may begin at any age, although it usually begins in the mid-20s and 30s. These symptoms may develop over days to weeks. Some people have only a single episode, with a full return to premorbid function. However, more than 50 percent of those who initially suffer a single major depressive episode eventually deve1op another .
- the point prevalence for major depressive disorder in the Western industrialized nations is 2.3 to 3.2 percent for men and 4.5 to 9.3 percent for women.
- the lifetime risk for major depressive disorder is 7 to 12 percent for men and
- Risk factors for major depressive disorder include female gender (especially during the postpartum period) , a history of depressive illness in first- degree relatives and prior episodes of major depression. Patients with major depressive disorder have substantial amounts of physical and psychological disability, as well as occupational difficulties. Untreated major depressive disorder has a substantial effect on health and functioning. Physical complaints are also common during a major depressive episode .
- the invention provides methods of diagnosing a patient for susceptibility to depression. Such methods entail detecting a variant allele of the human estrogen receptor gene (ESR) . For example, homozygous PvuII T/T alleles of the receptor gene indicate increased susceptibility to depression. Patients having a variant form of the human estrogen receptor gene can be treated with an antidepressive agent .
- ESR human estrogen receptor gene
- the invention provides methods of treating a patient suffering from depresion due to a variant allele of the human estrogen receptor gene.
- the methods entail administering to the patient a therapeutically effective amount of an antidepressive agent.
- the agent is administered prophylatically and in other methods therapeutically.
- the agent binds to the estrogen receptor. Preferred agents agonize binding of estrogen to the estrogen receptor and thereby compensate for reduced sensitivity of the estrogen receptor to signal transduction due to a variation in the receptor gene.
- the invention provides methods of screening potential drugs for antidepressant activity.
- Such methods entail administering a potential drug to a population of patients having a variation in an estrogen receptor gene indicating increased susceptibility to depression, and determining the existence of depression in members of the population relative to a control population.
- the invention further provides for the use of an agent effective to agonize estrogen binding to an estrogen receptor in the manufacture of a medicament for use in the treatment of depression.
- the invention further provides for the use of an agonist of estrogen binding to the estrogen receptor for treatment of depression.
- the patient has a variant estrogen receptor gene associated with increased susceptibility to depression.
- the invention further provides a diagnostic agent for detecting a variant estrogen receptor gene for use in therapy, prophylaxis or diagnosis of depression.
- the diagnostic agent can be an allele-specific oligonucleotide . or an allele-specific monoclonal antibody.
- the invention further provides for the use of an agent for detecting a variation in the human estrogen receptor gene ESR in the manufacture of an agent for treatment, prophylaxis or diagnosis of depression.
- Polymorphism refers to the occurrence of two or more genetically determined alternative sequences or alleles in a population.
- a polymorphic marker or site is the locus at which divergence occurs .
- Preferred markers have at least two alleles, each occurring at frequency of greater than 1%, and more preferably greater than 10% or 20% of a selected population.
- a polymorphic locus may be as small as one base pair.
- the allelic form occurring most frequently in a selected population is referred to as the wildtype form. Other forms are referred to as variant forms .
- An allele-specific oligonucleotide hybridizes to a segment of target DNA from one individual but does not hybridize to the corresponding segment from another individual due to the presence of different polymorphic forms in the respective segments from the two individuals.
- Hybridization conditions should be sufficiently stringent that there is a significant difference in hybridization intensity between alleles, and preferably an essentially binary response, whereby a probe hybridizes to only one of the alleles.
- an allele-specific monoclonal antibody shows specific binding to one allele without binding to another.
- the present invention provides methods of diagnosing depression and susceptibility thereto in women. These methods are premised, in part, on the insight that polymorphic variations in the human estrogen receptor gene (ESR) having a prototypical sequence described by Walter, Proc . Natl . Acad . Sci . USA 82, 7089-7093 (1985) cause increased susceptibility to depression.
- ESR human estrogen receptor gene
- the ESR gene encodes an intracelluar receptor for estrogen.
- the receptor functions as a transcriptional activator.
- the receptor has one domain that binds to estrogen and another than binds to palindromic sequences called estrogen responsive elements (ERE) to activate transcription (see Mukherjee et al . , Nucleic Acids Res . 21, 655-6 (1993)).
- ERB estrogen responsive elements
- Variations in the estrogen receptor cause depression by producing a form of receptor having altered sensitivity to estrogen signal transduction or by producing altered levels of receptor.
- variations cause the receptor to be less sensitive to estrogen signal transduction or to be expressed in reduced amounts relative to receptors in the general population.
- detection of T/T PvuII alleles of the estrogen receptor gene indicates increased susceptibility to depression relative to individuals with C/c or C/T genotypes and to the general population.
- variant genes can be detected, for example, by sequencing, allele-specific amplification (Gibbs, Nucleic Acid Res . 17, 12427-12448 (1989)), restriction enzyme analysis, allele-specific probe hybridization assays (Saiki et al . , Nature 324, 163-166 (1986)) or single-stranded conformational analysis (Orita et al . , Proc . Nat . Acad . Sci . 86, 2766-2770 (1989)), or use of monoclonal antibodies with allele-specific binding specificity.
- Reagents used for detecting variant alleles can be packaged as diagnostic reagents or kits.
- the diagnostic reagents or kits can bear labels or instructions indicating their suitability for use in diagnosis of depression or symptoms thereof .
- Additional polymorphisms in the estrogen receptor gene correlated with susceptibility to depression can be identified as follows. The first step is to identify additional polymorphic sites within one of these genes. Such polymorphic sites can be identified either by comparative sequencing of these genes in a population of individuals or from the published literature and databases. A prototypical sequence of the coding region of the estrogen receptor gene is described by Walter, Proc . Natl . Acad . Sci . USA 82, 7089-7093 (1985) .
- Analysis of variations in the estrogen receptor gene is useful in identifying at least a subset of depression patients having a common genetic basis giving rise to the disease. Such patients are amenable to treatments with agents that anonize or antagonise estrogen binding to estrogen receptor.
- the selection of agonist or antagonist depends whether the variation reduces or increases sensitivity of the estrogen receptor to estrogen.
- agonists are used.
- An agonist can act alone to transduce a signal through the human estrogen receptor or can act in a cooperative manner with estrogen. Treatment with agents directed to the estrogen receptor may be ineffective in other classes of depression patients with a genetic basis unrelated to the human estrogen receptor.
- Therapeutic agents useful in prophylaxis or therapeutic treatment of depression include estrogen and agonists or antagonists of estrogen binding to the estrogen receptor hRE .
- Some known agonists and antagonists of estrogen-estrogen receptor binding are described by Zysk et al . , Endocrinology 136, 1323-26 (1995) .
- Other agents having efficacy in treating at least some forms of depression include 5-HT1 agonists, monoamine oxidase inhibitors, tricyclic antidepressants (TCAs) , and serotonin-selective re-uptake inhibitors (SSRIs) , such as Prozac.
- Agonists that increase signal transduction of estrogen can be obtained by producing and screening large combinatorial libraries.
- Combinatorial libraries can be produced for many types of compound that can be synthesized in a step by step fashion.
- Such compounds include polypeptides, beta-turn mimetics, polysaccharides, phospholipids, hormones, prostaglandins , steroids, aromatic compounds, heterocyclic compounds, benzodiazepines, oligomeric N-substituted glycines and oligocarbamates .
- the assay can be performed using cloned estrogen receptor immobilized to a support such as a microtiter well.
- compounds can be screened for lack of specific binding to other cellular receptors, such as human estrogen receptors nonallelic with ESR.
- Assays for agonist activity can then be performed by contacting a compound under test with a reporter cell.
- the reporter cell has one construct expressing a reporter gene linked to an ERE (estrogen response element) , and a second construct expressing the human estrogen receptor.
- ERE estrogen response element
- Transfection of a human estrogen receptor cDNA into mammalian cell lines is described by e.g., Levenson et al . , J. Steroid Bioche . Mol . Biol . 51, 229-39 (1994).
- the compound is taken up by the cell and activates the estrogen receptor.
- the activated estrogen receptor binds to the ERE element causing expression of the reporter gene.
- compositions can be formulated in pharmaceutical compositions to be used for prophylactic or therapeutic treatment of depression.
- a pharmaceutical composition comprises an active therapeutic agent, e . g. , estrogen or an agonist of estrogen binding to the estrogen receptor and a variety of other components. The preferred form depends on the intended mode of administration and therapeutic application.
- the compositions can also include, depending on the formulation desired, pharmaceutically- acceptable, non-toxic carriers or diluents, which are defined as vehicles commonly used to formulate pharmaceutical compositions for animal or human administration. The diluent is selected so as not to affect the biological activity of the combination.
- the therapeutic agents of the invention can be administered as injectable dosages of a solution or suspension of the substance in a physiologically acceptable diluent with a pharmaceutical carrier which can be a sterile liquid such as water and oils with or without the addition of a surfactant and other pharmaceutically preparations are those of petroleum, animal, vegetable, or synthetic origin, for example, peanut oil, soybean oil, and mineral oil.
- a pharmaceutical carrier which can be a sterile liquid such as water and oils with or without the addition of a surfactant and other pharmaceutically preparations are those of petroleum, animal, vegetable, or synthetic origin, for example, peanut oil, soybean oil, and mineral oil.
- the agents of this invention can be administered in the form of a depot injection or implant preparation which can be formulated in such a manner as to permit a sustained release of the active ingredient.
- Therapy can be initiated on diagnosis of depression and continued at regular intervals (e.g., weekly) until the symptoms are reduced, arrested or reversed.
- therapy can be administered prophylactically to patients susceptible to depression before symptoms are apparent.
- the methods are also useful in pediatric patients (i.e., less than two years old) or disabled patients with genetic susceptibility to depression but who are unable to articulate their symptoms.
- compositions are administered to a patient suspected of, or already suffering from depression in an amount sufficient to cure, or at least partially arrest, the symptoms of the disease and its • complications. An amount adequate to accomplish this is defined as a therapeutically- or pharmaceutically-effective dose.
- compositions are administered to a patient susceptible to, or otherwise at risk of, disease in an amount sufficient to eliminate or reduce the risk or delay the outset of the disease. Such an amount is defined to be a prophylactically effective dose.
- Effective doses of the compositions vary depending upon many different factors, including means of administration, target site, physiological state of the patient, and other medicants administered.
- Agents can be administered intravenously, intramuscularly, subcutaneously, intranasally, cutaneously, via suppository, by inhalation or orally.
- the pharmaceutical carrier can be any compatible, non-toxic substance suitable to deliver the antagonist to the patient. Sterile water, alcohol, fats, waxes, and inert solids can be used as the carrier.
- compositions can also be incorporated into the pharmaceutical compositions.
- concentration of the active agent in the pharmaceutical composition can vary widely, i.e., from less than about 0.1% by weight, usually being at least about 1% by weight to as much as 20% by weight or more.
- Methods for preparing parenterally administrable compositions are described in more detail in, for example, Remington ' s Pharmaceutical Science (15th ed. , Mack Publishing Company, Easton, Pennsylvania, 1980) (incorporated by reference in its entirety for all purposes) .
- the active ingredient can be administered in solid dosage forms, such as capsules, tablets, and powders, or in liquid dosage forms, such as elixirs, syrups, and suspensions.
- Active component (s) can be encapsulated in gelatin capsules together with inactive ingredients and powdered carriers, such as glucose, lactose, sucrose, mannitol, starch, cellulose or cellulose derivatives, magnesium stearate, stearic acid, sodium saccharin, talcum, magnesium carbonate and the like.
- inactive ingredients examples include red iron oxide, silica gel, sodium lauryl sulfate, titanium dioxide, edible white ink and the like.
- Similar diluents can be used to make compressed tablets. Both tablets and capsules can be manufactured as sustained release products to provide for continuous release of medication over a period of hours. Compressed tablets can be sugar coated or film coated to mask any unpleasant taste and protect the tablet from the atmosphere, or enteric-coated for selective disintegration in the gastrointestinal tract.
- Liquid dosage forms for oral administration can contain coloring and flavoring to increase patient acceptance.
- ESR PvuII T/T individuals than in individuals with an ESR PvuII C allele.
- an ESR PvuII T/T individual is more susceptible to the clinical effects of variations in estrogen levels .
- the PvuII polymorphism in ESR which occurs in an intronic region, is itself a cause of depression, perhaps due to an influence on splicing or expression.
- the PvuII polymorphism may be in equilibrium dislinkage with another polymorphism, which is the causative locus of depression.
- Other allelic variants in the ESR gene can be tested by association analysis. The allelic variant (s) displaying the highest level of statistical association is/are most likely causative mutations.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU67715/98A AU6771598A (en) | 1997-03-24 | 1998-03-23 | Estrogen and the mental state: molecular variations within the estrogen receptorgene modulate clinical susceptibility to depression |
EP98913083A EP0983382A1 (en) | 1997-03-24 | 1998-03-23 | Estrogen and the mental state: molecular variations within the estrogen receptor gene modulate clinical susceptibility to depression |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4144997P | 1997-03-24 | 1997-03-24 | |
US60/041,449 | 1997-03-24 |
Publications (1)
Publication Number | Publication Date |
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WO1998042872A1 true WO1998042872A1 (en) | 1998-10-01 |
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ID=21916567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US1998/005789 WO1998042872A1 (en) | 1997-03-24 | 1998-03-23 | Estrogen and the mental state: molecular variations within the estrogen receptor gene modulate clinical susceptibility to depression |
Country Status (3)
Country | Link |
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EP (1) | EP0983382A1 (en) |
AU (1) | AU6771598A (en) |
WO (1) | WO1998042872A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1573055A2 (en) * | 2002-09-24 | 2005-09-14 | The REGENTS OF THE UNIVERSITY OF COLORADO, A Body Corporate | Genetic diagnosis of depression |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5554601A (en) * | 1993-11-05 | 1996-09-10 | University Of Florida | Methods for neuroprotection |
US5563035A (en) * | 1994-06-16 | 1996-10-08 | The Board Of Trustees Of The Leland Stanford Junior University | Estrogen receptor regulation and its uses |
-
1998
- 1998-03-23 WO PCT/US1998/005789 patent/WO1998042872A1/en not_active Application Discontinuation
- 1998-03-23 AU AU67715/98A patent/AU6771598A/en not_active Abandoned
- 1998-03-23 EP EP98913083A patent/EP0983382A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5554601A (en) * | 1993-11-05 | 1996-09-10 | University Of Florida | Methods for neuroprotection |
US5563035A (en) * | 1994-06-16 | 1996-10-08 | The Board Of Trustees Of The Leland Stanford Junior University | Estrogen receptor regulation and its uses |
Non-Patent Citations (2)
Title |
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ARAGONA M, ET AL: "ESTROGEN RECEPTOR EXPRESSION AND DEPRESSIVE MOOD DISORDERS IN UNTREATED BREAST CANCER PATIENTS", STN BIOSIS, XX, XX, 1 January 1900 (1900-01-01), XX, XP002911540 * |
SANO M., ET AL.: "ASSOCIATION OF ESTROGEN RECEPTOR DINUCLEOTIDE REPEAT POLYMORPHISM WITH OSTEOPOROSIS.", BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, ACADEMIC PRESS INC. ORLANDO, FL, US, vol. 217., no. 01., 5 December 1995 (1995-12-05), US, pages 378 - 383., XP002911539, ISSN: 0006-291X, DOI: 10.1006/bbrc.1995.2787 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1573055A2 (en) * | 2002-09-24 | 2005-09-14 | The REGENTS OF THE UNIVERSITY OF COLORADO, A Body Corporate | Genetic diagnosis of depression |
EP1573055A4 (en) * | 2002-09-24 | 2006-05-10 | Univ Colorado Regents | Genetic diagnosis of depression |
Also Published As
Publication number | Publication date |
---|---|
AU6771598A (en) | 1998-10-20 |
EP0983382A1 (en) | 2000-03-08 |
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