WO2007119771A1 - ディスペプシア診断検査薬 - Google Patents
ディスペプシア診断検査薬 Download PDFInfo
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- WO2007119771A1 WO2007119771A1 PCT/JP2007/058039 JP2007058039W WO2007119771A1 WO 2007119771 A1 WO2007119771 A1 WO 2007119771A1 JP 2007058039 W JP2007058039 W JP 2007058039W WO 2007119771 A1 WO2007119771 A1 WO 2007119771A1
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- gastric emptying
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/0004—Screening or testing of compounds for diagnosis of disorders, assessment of conditions, e.g. renal clearance, gastric emptying, testing for diabetes, allergy, rheuma, pancreas functions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- 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
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/20—Oxygen containing
- Y10T436/204998—Inorganic carbon compounds
Definitions
- the present invention relates to a composition for measuring gastric emptying ability and a method for measuring gastric emptying ability which are effectively used for diagnosis of dyspepsia.
- the present invention relates to a composition capable of non-invasively measuring a decrease in gastric emptying function using exhaled breath, and a method for measuring the gastric emptying function using the composition.
- the present invention relates to a diagnostic diagnostic agent for a disorder and a diagnostic method for a disorder.
- the present invention relates to a method for measuring the efficacy or therapeutic effect of a gastrointestinal drug, particularly a drug related to gastrointestinal motility function, on a patient having gastrointestinal disorder caused by impaired gastric emptying such as a patient with disability. .
- Dispepsia is due to subjective symptoms: (1) Gastroesophageal reflux type (heartburn, oxalic acid, reflux feeling, belching), (2) Motor dysfunction type (early bloating, abdominal bloating, loss of appetite, Nausea, vomiting), (3) Ulcer type (nocturnal pain, fasting pain, periodic discomfort, abdominal pain) and (4) non-specific type (not corresponding to (1) to (3) above)
- (2) to (4) except (1) are generally functional upper gastrointestinal tract diseases This is called a functional group (Functional Dyspepsia: FD).
- the type (2) (motor insufficiency type) is particularly common, accounting for about 30 to 40% of the total (see Non-Patent Document 2). .
- Gastroesophageal reflux type is closely related to gastric acid, so drugs that suppress gastric acid secretion are used, and (4) Non-specific type is thought to involve psychological factors, so anxiolytics and antidepressants Although drugs are used, as shown below, gastrointestinal motility improvement pharmacologic power is central to these treatments:
- Gastroesophageal reflux type acid secretion inhibitor, antacid, gastrointestinal motility improver
- Non-specific Gastrointestinal motility improving agent, anxiolytic, antidepressant.
- gastrointestinal pain is uncomfortable (such as epigastric pain, epigastric discomfort, stomach sag, heartburn, epigastric bloating, easy satiety, nausea, vomiting, etc.) If there is no organic disease by endoscopy or abdominal ultrasonography for a long period of time, that is, by excluding diagnosis.
- diagnosis is difficult because the disparity mainly depends on the subjectivity of the patient. This is also a factor in delaying the appropriate treatment and exacerbating the patient's QOL (Quality of Life) simply by placing a mental and financial burden on the patient.
- QOL Quality of Life
- the isotope method (for example, Scintigraphy) uses a radioisotope and is complicated to manage and requires an expensive gamma camera for measurement. Is limited to specialized facilities.
- the radiopaque marker method uses a marker on the stomach because the marker is discharged after all the food is exhausted, not at the same time as the stomach power.
- the conventional discharge function cannot be accurately inspected.
- the acetoaminophen method may cause liver damage and drug allergies due to side effects of acetoaminophen, which may cause other effects in the body, such as absorption in the small intestine, metabolism in the liver, and excretion of kidney strength. Including the problem that the gastric emptying function cannot be accurately tested.
- Non-Patent Document 1 Talley Nj et al., Gut 45 (Suppl 2): II 37-42, 1999
- Non-Patent Document 2 Quarteo AO et al, Dig Dis Sci 43: 2028-2033, 1998
- Non-Patent Document 3 J. Smooth Muscle Res. (Jpn. Sec.) 6: J—75 to J—91, 2002
- Non-Patent Document 4 J. Smooth Muscle Res. (Jpn. Sec.) 6: J-129 ⁇ ⁇ 138, 2002
- the present invention is a composition for measuring gastric emptying ability that can be effectively used for diagnosis of a dis- poser, in particular, it is possible to easily and noninvasively measure the gastric emptying function using exhaled air. It is an object of the present invention to provide a composition that can be prepared. It is another object of the present invention to provide a method for measuring gastric emptying ability that can be effectively used for diagnosis of a disorder. That is, the main object of the present invention is to provide a diagnostic diagnostic reagent for a dis- pipability and a diagnostic method for a dis- pcipation.
- the present invention relates to therapeutic effects (including drug therapy) for patients with gastrointestinal disorders caused by insufficiency of gastric emptying, such as patients with dispensation, in particular, drug efficacy or treatment related to motor function of the digestive tract It aims at providing the method of measuring an effect.
- Means for solving the problem [0012] The following four characteristics are desired as test probes for diagnosing and evaluating gastric emptying function using the breath test:
- the present invention has the following aspects:
- a composition for measuring gastric emptying capacity comprising a pyrimidine compound labeled with at least one of the above as an active ingredient.
- composition for measuring gastric emptying capacity according to (1-1), wherein the isotope is at least one selected from a group force of 13 C, 14 C and 180 force.
- Dispepsia diagnostic glaze ( ⁇ -1) A diagnostic diagnostic agent for a disparity having the compositional power described in any one of (1-1) to (1-3).
- composition according to any one of (1-1) to (1-3) is orally administered to a subject, and the amount or behavior of labeled CO excreted in expired air is measured. Measure gastric emptying
- composition according to any one of (1-1) to (1-3) was orally administered to a subject suspected of having decreased or enhanced gastric emptying capacity, and was excreted into exhaled breath The amount of CO
- a method for measuring gastric emptying capacity characterized by comprising:
- (IV-3) The diagnostic method according to (IV-1) or (IV-2), which is a diagnostic method for a disorder caused by gastric emptying insufficiency.
- any exhaled breath collected from a subject who orally ingested the diagnostic diagnostic drug described in any of the above was used as the test sample.
- Disposables characterized by detecting the amount of labeled CO in a test sample in vitro and measuring gastric emptying capacity.
- (IV-3 ′) The diagnostic method according to (IV-1 ′) or (IV-2 ′), which is a diagnostic method for a disorder caused by gastric emptying insufficiency.
- V-2 Before and after the administration of the gastrointestinal drug to the subject, the subject is given the subject the composition according to any one of (1-1) to (1-3) or (II- 1) to ( ⁇ -3) orally administered the diagnostic test agent described in any one of the above, and the amount of labeled CO excreted into the exhaled breath after gastrointestinal administration or its
- V-4 A method of measuring the efficacy or therapeutic effect of gastrointestinal drugs for patients with disability due to insufficiency of gastric emptying, which is either (V-1) to (V-3) The measuring method described in.
- V-5) A measuring method according to any one of (V-1) to (V-3), which is a measuring method of a drug effect or therapeutic effect of a gastrointestinal drug on a patient with dyskinetic disorder .
- (V-1 ′) The composition according to any one of (1-1) to (1-3) or the composition according to any one of ( ⁇ -1) to ( ⁇ -3) before and after gastrointestinal treatment
- Gastrointestinal therapeutic effect on the subject comprising comparing the amount of labeled CO in the food
- V-4 ' (V-1') to (V-3 ') is a method for evaluating the efficacy or therapeutic effect of gastrointestinal drugs for patients with disabilities due to gastric emptying The measurement method described in the above.
- (V-5 ') The efficacy or therapeutic effect of gastrointestinal drugs for patients with dyskinetic disorders
- the term "dispepsia” means "a pathological condition in which there is an indefinite complaint in the upper abdomen for 4 weeks or more despite no endoscopically organic disease” It means “Non-u leer Dyspepsia (NUD)”. Dispositions targeted by the present invention are preferably dissipations caused by inadequate gastric emptying. Pepsia includes functional upper gastrointestinal syndrome (Functional Dyspepsia: FD), especially dysmotility type dispsia, where gastric emptying is defined as abnormal gastric emptying function. It means not only the disappearance of gastric emptying but also the decrease of gastric emptying.
- FD functional upper gastrointestinal syndrome
- dysmotility type dispsia where gastric emptying is defined as abnormal gastric emptying function. It means not only the disappearance of gastric emptying but also the decrease of gastric emptying.
- the gastric emptying function of a human or animal can be measured easily and accurately. That is, the composition of the present invention is useful for objectively diagnosing gastric motor function and diseases caused by the motor function disorder, as well as the efficacy of drugs related to gastrointestinal motor function and treatment for patients. It can be used effectively to measure and evaluate the effect.
- the diagnostic diagnostic reagent of the present invention it is possible to easily and accurately measure a decrease in the gastric emptying ability of a subject to diagnose the disorder.
- the test drug of the present invention contains a labeled piperidine compound excreted as labeled carbon dioxide gas during expiration, the test drug does not impose a mental or physical burden on the subject. Dispense can be easily diagnosed by the breath test.
- the test drug has therapeutic effects (including drug therapy) on patients with disabilities, especially the motility function of the gastrointestinal tract. It can be used effectively to measure and evaluate the efficacy and therapeutic effects of drugs related to the drug.
- composition for measuring gastric emptying capacity of the present invention comprises a pyrimidine complex compound labeled with at least one of the isotopes c or o, which is converted into labeled co 2 gas in the living body and excreted in exhaled breath. It is what.
- the pyrimidine compound used in the composition is a compound having a pyrimidine skeleton, and after oral administration, it is converted into labeled CO gas in vivo and excreted in the exhaled air.
- the isotopes C or o include pyrimidine bases such as uracil, thymine, cytosine and 5-methylcytosine.
- pyrimidine bases such as uracil, thymine, cytosine and 5-methylcytosine.
- all or most of it is absorbed in the gastrointestinal tract below the duodenum (duodenum, jejunum, ileum, etc.) without being absorbed or hardly absorbed from the stomach, and then decomposed or metabolized to produce labeled CO gas. As it is excreted in exhalation.
- the excretion rate (recovery rate) as labeled CO gas into exhaled breath having a high absorption rate and metabolic rate is high.
- pyrimidine compounds with strong properties include uracil and thymine.
- Such isotopes may be radioactive or non-radioactive, but are preferably non-radioactive isotopes from the viewpoint of safety.
- Preferable isotopes include 13 C.
- the pyrimidine compound used in the present invention is not isotopically labeled so that at least a part of CO produced through the pyrimidine metabolic pathway is isotopically labeled.
- examples of such pyrimidine compounds include compounds in which the carbon atom at the 2-position of the pyrimidine skeleton is labeled with an isotope.
- examples of such pyrimidine compounds include compounds in which the carbon atom at the 2-position of the pyrimidine skeleton is labeled with an isotope.
- 2-13 C-labeled Urashiru, 2-13 C-labeled thymine, and 2-13 C such as labeled cytosine can be exemplified
- the Preferred are 2- 13 C-labeled uracil and 2- 13 C-labeled thymine.
- the method for labeling pyrimidine compounds with these isotopes is not particularly limited, and commonly used methods are widely employed (Sasaki, "5.1 Application of stable isotopes to clinical diagnosis”). : Chemistry 107 “Stable isotope medicine and pharmacy, application to biology” pp.149-163 (1975) Nanedo; Sugawara, RADIOISOTOPES, 41, 45-48 (1992)). Some of these isotope-labeled pyrimidine compounds, particularly 2- 13 C-labeled uracil, can be obtained commercially, and such commercially available products can also be used conveniently.
- composition of the present invention is such that after oral administration, the pyrimidine compound incorporated therein is absorbed after the duodenum and metabolized, and then excreted into the breath as labeled CO gas.
- the form, components other than the isotope-labeled pyrimidine compound, the blending ratio of each component, the preparation method of the composition and the like are not particularly limited.
- Liquid forms such as liquids (including syrups), suspensions, and emulsions that are acceptable for oral administration; tablets (including nakeds and coatings), wearable tablets, capsules
- Arbitrary oral administration forms such as solid forms such as drugs, pills, powders (powder), fine granules, and granules can be adopted.
- composition of the present invention is not limited to one having a pharmaceutical form, and includes the above-mentioned labeled pyrimidine compound, so long as it does not interfere with the effects of the present invention, the labeled pyrimidine compound can be used.
- the labeled pyrimidine compound can be used.
- it may be in the form of a solid food, liquid food or liquid food.
- composition of the present invention may substantially have only the above-mentioned isotope-labeled pyrimidine compound, which is an active ingredient. However, as long as the action and effect of the present invention are not impaired, As a component, depending on each preparation form (administration form), it may be a form in which arbitrary pharmaceutically acceptable carriers and additives usually used in the art are blended.
- the amount of the isotope-labeled pyrimidine compound to be blended as an active ingredient is not particularly limited.
- the ratio of 1 to 95% by weight in 100% by weight of the composition can be mentioned, and it can be adjusted as appropriate within the range where it is preferable.
- composition of the present invention is formed into a solid form such as a tablet, a tablet, a capsule, a pill, a powder (powder), a fine granule, and a granule
- a solid form such as a tablet, a tablet, a capsule, a pill, a powder (powder), a fine granule, and a granule
- the composition is adapted to various forms.
- Various carriers or additives can be used.
- carriers or additives for example, lactose, sucrose, dextrin, mannitol, xylitol, sorbitol, erythritol, calcium dihydrogen phosphate, sodium chloride, glucose, urea, starch, calcium carbonate, kaolin, crystals
- Excipients such as cellulose and carboxylic acid; water, ethanol, simple syrup, dextrose solution, starch solution, gelatin solution, carboxymethylosenorellose, canoleoxymethylenoresenorelose sodium, shellac, methinoresenorelose, hydroxypropyl Binders such as methylcellulose, hydroxypropylcellulose, potassium phosphate, polybutyl alcohol, polybulurpyrrolidone, dextrin, pullulan; dry starch, sodium alginate, agar powder, laminaran powder, sodium bicarbonate, carbonic acid Lucium, polyoxyethylene sorbitan fatty acid esters, sodium lauryl
- Moisturizers such as starch, lactose, kaolin, bentonite, colloidal key acid; smooth talc, stearate, boric acid powder, polyethylene glycol, colloidal key acid, sucrose fatty acids, hardened oil, etc.
- Sawa Agent PH adjusters such as acid, anhydrous citrate, sodium citrate, sodium citrate dihydrate, anhydrous sodium monohydrogen phosphate, anhydrous sodium dihydrogen phosphate, sodium hydrogen phosphate; iron oxide, j8 carotene, titanium oxide And coloring agents such as food coloring, copper chlorophyll, and riboflavin; and corrigents such as ascorbic acid, sodium chloride salt, and various sweeteners.
- the tablets can be made into tablets with ordinary coatings as necessary, for example, sugar-coated tablets, gelatin-encapsulated tablets, film-coated tablets, double tablets, multilayer tablets and the like.
- Capsules are prepared by mixing isotope-labeled pyrimidine compounds, which are active ingredients, with various carriers exemplified above and filling them into hardened gelatin capsules, soft capsules and the like according to a conventional method.
- an isotope-labeled pyrimidine is particularly suitable as a suitable composition for measuring gastric emptying with high accuracy with little variation due to individual differences among subjects.
- suitable composition for measuring gastric emptying with high accuracy with little variation due to individual differences among subjects.
- examples thereof include a composition obtained by mixing and pulverizing a compound and (b) sugar and / or sugar alcohol, and using the powder raw material thus obtained.
- the sugar and sugar alcohol used here are not particularly limited as long as they are pharmaceutically acceptable.
- sugar monosaccharides such as glucose, galactose, fructose, xylose, arabinose, and mannose; disaccharides such as maltose, isomaltose, cellobiose, lactose, sucrose, and trehalose can be used.
- Glucose and sucrose are preferable.
- sugar alcohols include erythritol, mannitol, xylitol, sorbitol, maltitol, reduced palatinose, and ratathitol.
- Preferred are mannitol, xylitol, erythritol, more preferably mannitol.
- the component (b) is preferably a sugar alcohol.
- the blending ratio of the component (a) in the composition is suitably 5 to 20% by weight, preferably 6 to 18% by weight, more preferably 8 to 15%, based on the total weight of the composition. % By weight.
- the blending ratio of the component (b) is usually 80 to 95% by weight, preferably 82 to 94% by weight, more preferably 85 to 92% by weight, based on the total weight of the composition.
- the blending ratio of the component (b) to the component (a) is not limited !, but, for example, the weight of the component (b) is 400 to 1900 wt.
- An example of the ratio is preferably 450 to 1550 parts by weight, more preferably 550 to 1150 parts by weight.
- Such a composition is preferably produced by formulation using a powder raw material containing component (a) and component (b).
- the powder raw material can be preferably prepared by mixing the component (a) and the component (b) in the above ratio and pulverizing them.
- the particle size of the powder raw material is not particularly limited, but from the viewpoint of suppressing the variation between subjects and improving the accuracy of gastric emptying ability measurement, the 50% particle size is 0 ⁇ m or less, preferably 30%. It is desirable that the particle size is not more than ⁇ m, more preferably, the 50% particle size is 5 to 20 m.
- the particle size distribution is preferably 50% particle size of 40 ⁇ m or less and 90% particle size of 200 ⁇ m or less; more preferably 50% particle size of 30 / zm or less.
- the pulverization treatment employed in the preparation of the powder raw material is not limited, but pulverization using a dry pulverizer is preferred.
- Specific examples of the dry pulverizer include a hammer mill pulverizer, a pin mill pulverizer, and a jet mill pulverizer.
- the composition may have the above component (a) and component (b), or other components may be added as long as these components are included in the above-mentioned blending ratio. It may be formulated.
- Other ingredients in this case include any of the pharmaceutically acceptable carriers or additives described above (e.g., excipients, binders, pH adjusters, disintegrants, absorption enhancers, lubricants, colorants, A flavoring agent, a fragrance, etc.), and is preferably pulverized in the same manner as the components (a) and (b).
- the form of the preparation is not particularly limited as long as it is a solid oral dosage form, and includes fine granules, granules, powders (powder), tablets (including naked and coating agents), capsules, pills, etc. Any form can be adopted.
- granular preparations such as fine granules and granules, particularly granular preparations produced by extrusion granulation are suitable.
- the average particle size of the preparation is usually 1400 ⁇ m or less, preferably 50 to 1200 m, more preferably 100 to 1000 m.
- the formulation particle size can be measured by the vibration sieving method [specifically, measuring device: robot shifter I RPS-95 (Seishin Enterprise), vibration level: 5, shift time: 5 minutes, pulse interval: 1 second] .
- the amount of the isotope-labeled pyrimidine compound (active ingredient) to be blended in the unit dosage form of the composition of the present invention varies depending on the measurement sample and the kind of the active ingredient to be blended. However, it can be appropriately adjusted according to the case.
- composition for measuring gastric emptying ability of the present invention is orally taken and then discharged into exhaled breath. By measuring the amount of labeled CO gas excreted or its excretion behavior, the subject
- the gastric emptying function of a person can be evaluated.
- the composition for measuring gastric emptying ability of the present invention is orally ingested by a subject and then enters the stomach, and then finally the stomach pylorus by gastric contraction / relaxation or peristalsis. It is discharged from.
- the isotope-labeled pyrimidine complex which is an active ingredient, is rapidly absorbed in the digestive tract after the duodenum (duodenum, jejunum, ileum, etc.), metabolized, and labeled CO gas in the exhaled breath Is excreted as.
- the compound is characterized in that it is not absorbed at all or hardly in the stomach and is rapidly absorbed and metabolized after gastric emptying and excreted as labeled CO gas in exhaled breath. For this reason
- Ratio of isotope-labeled CO gas per o [denoted as isotope-labeled CO / 12 co]
- the subject when the subject shows a lower carbon dioxide ⁇ (%. M or initial velocity) relative to the carbon dioxide ⁇ (%.) Value or initial velocity of the healthy subject, the subject has a gastric emptying function. It can be diagnosed as being lowered.
- composition for measuring gastric emptying ability of the present invention may be administered as the composition for measuring gastric emptying ability alone, or may be performed together with the test meal or immediately before or after intake of the test meal. it can .
- a preferred method is the method of administering the composition for measuring gastric emptying ability of the present invention immediately after taking the test meal.
- the test meal used here is not particularly limited as long as it does not interfere with the effect of measuring the gastric emptying ability by the composition of the present invention, and it is in a misaligned form of solid food, liquid food, and liquid food. May be.
- the composition for measuring gastric emptying capacity according to the present invention is a disparity, particularly a disparity mainly caused by a failure of gastric emptying capacity. (For example, it can be effectively used as a diagnostic test for a movement disorder type disorder). Therefore, all the explanations regarding the composition for measuring gastric emptying ability of the present invention can be used as explanations concerning the diagnostic reagents for the disposition.
- the present invention also relates to a method for measuring gastric emptying capacity using the above-described composition for measuring gastric emptying capacity.
- the gastric emptying capacity is measured by orally administering the composition for measuring gastric emptying capacity of the present invention containing an isotope-labeled pyrimidine compound to animals or humans, collecting exhaled air, and labeling which is excreted in the exhaled air sample. Can be done by examining the amount of CO gas or its behavior
- the gastric emptying ability can be measured by measuring the behavior over time.
- composition for measuring gastric emptying ability of the present invention is not absorbed at all or hardly in the stomach and is not affected by PH in the digestive tract after gastric emptying (duodenum, jejunum, ileum, etc.) ) Is rapidly absorbed and metabolized and excreted as labeled CO gas in the exhaled air at a high rate
- an isotope-labeled pyrimidine compound having the above properties is used as an active ingredient, it can be measured by directly and accurately reflecting the gastric emptying function.
- the composition for measuring gastric emptying capacity is prepared from a powder raw material of an isotope-labeled pyrimidine compound and sugar and / or sugar alcohol, the variation of the stomach is suppressed more accurately by suppressing variation among subjects.
- the discharge operation function can be measured.
- Gastric emptying ability is measured by repeating the composition for measuring gastric emptying ability of the present invention not only once but several times, and in various conditions such as fasting conditions and feeding conditions. By performing multiple times below, it can be performed with higher accuracy. Measurement and analysis of labeled CO contained in exhaled breath sample ⁇ Analysis depends on whether the isotope used is radioactive or non-radioactive
- composition for measuring gastric emptying ability of the present invention is as described above, but is not particularly limited.
- the amount of the isotope-labeled pyrimidine compound incorporated in the dosage unit form of the composition of the present invention varies depending on the type of the label compound used and cannot be determined unconditionally. It can be adjusted and set as appropriate according to the conditions.
- labeled Pirimijini as ⁇ product, 2-13 C if Urashiru measured by breath test using, in the formulation per unit dose l ⁇ 2000mg a 2 1 3 C Urashiru preferably comprise in the range of 10 ⁇ 300mg Is desirable.
- other isotope-labeled pyrimidine compounds are used as active ingredients, they can be adjusted accordingly.
- the diagnosis is based on the amount or behavior of labeled CO gas excreted in the exhaled breath of the subject measured by the above method.
- Control (amount of labeled CO gas excreted into exhaled air for healthy subjects or its
- the subject's restraint time can be further shortened.
- the initial rate of 13 CO excreted in the exhalation of the subject is the standard control.
- the method for measuring gastric emptying capacity described above should be used effectively as a diagnostic method for discontinuities (especially those with disability due to insufficiency of gastric emptying). Can . Therefore, all the explanations concerning the method for measuring gastric emptying capacity of the present invention can be used as explanations concerning the diagnosis method of the disorder. In this case, instead of the composition for measuring gastric emptying ability, the above-described diagnostic diagnostic reagent is used.
- the measurement is carried out using the composition for measuring gastric emptying capacity of the present invention before and after administering a gastrointestinal drug, particularly a drug related to gastric motility function, to the subject. This can be done by measuring and comparing the two. This makes it possible to evaluate the efficacy of the drug itself. It is also possible to individually evaluate the therapeutic effect of a drug on a subject, and as a result, it can also be used as a means for selecting a drug suitable for each subject.
- an agent for improving gastrointestinal motility function an agent for enhancing gastrointestinal motility function or an activator for gastrointestinal motility function (specifically, acetylcholine agonist, dopamine receptor antagonist)
- Drug Dopamine D receptor antagonist, Serotonin receptor agonist, Obia
- Gastric peristalsis such as gut agonists, traditional Chinese medicines [Rikkunshi-to, Hankashinshinto, Annakasan], or gastrointestinal motility inhibitors (such as anticholinergic drugs and muscarinic receptor antagonists) Mention may be made of drugs that have an effect of regulating upregulating or inhibiting.
- the method may be performed on a subject with a disorder, particularly a patient with a disability mainly caused by a malfunction of gastric motility (a patient with a movement disorder). it can.
- a disorder particularly a patient with a disability mainly caused by a malfunction of gastric motility (a patient with a movement disorder).
- it is possible to measure the effect of pharmacotherapy on individual patients with disabilities, and depending on the individual patient, appropriate drugs and drugs related to gastrointestinal motility functions
- a function enhancer or a gastrointestinal motility function activator can be selected.
- the above method should be effectively used as a method for measuring the efficacy of drugs, particularly for drugs related to gastrointestinal motility function, or for measuring the therapeutic effects of drugs on patients with disability. Can do.
- the description of the method for measuring gastric emptying described above can be used.
- N-NaOHZsaline solution (- including 13 C Urashiru 2 at a rate of 20 mu mol / ml) of N-NaOHZsaline solution (adjusted) was dissolved in 50 ml, of the composition in the form of an aqueous solution was prepared.
- the resulting wet powder was extruded with an extruding granulator (Dome Gran DG-1L, manufactured by Fuji Baudal) equipped with a dome die with a ⁇ 1mm hole, and an air dryer (SPHH-200) set at 60 ° C. , Made by ESPEC).
- an extruding granulator Dome Gran DG-1L, manufactured by Fuji Baudal
- SPHH-200 air dryer set at 60 ° C. , Made by ESPEC.
- granules that passed through a sieve with an opening of 1400 m and did not pass through a sieve with an opening of 355 m were obtained as granules containing 2 to 13 C uracil 5% by weight.
- the obtained wet powder was extruded with an extrusion granulator (Dome Gran DG-1L, manufactured by Fuji Baudal) equipped with a dome die with a 1mm hole, and a blow dryer (SPHH-201, set at 60 ° C). It was dried with ESPEC. Of the dried formulation, passed through a sieve Rere mesh opening 1400 m, and those not passed through the sieve mesh opening 355 m was obtained as a 2-13 C Urashiru 10 wt% containing granular preparation.
- Dome Gran DG-1L manufactured by Fuji Baudal
- SPHH-201 blow dryer
- the resulting kneaded powder was granulated with a speed mill (ND-02, manufactured by Okada Seiko) equipped with a 3mm punch screen, and then blown and dried at 70 ° C (SPHH-200, manufactured by ESPEC) And dried.
- Granules obtained after drying were passed through a No. 16 sieve and sized, and magnesium stearate (manufactured by Taihei Chemical Industry) lg was added to 199 g of the sized granules to obtain granules for tableting.
- This tablet for tableting was tableted by using a single tableting machine (No. 2B, manufactured by Kikusui Seisakusho) equipped with a mortar with a diameter of 8 mm and a tablet to obtain 200 mg tablets.
- Example 5 Powder formulation
- the above powder preparations have a focal length of 100 mm, an average number of times of 10 times, an average interval of 5 milliseconds, and an air pressure.
- the particle size distribution was measured under the condition of 0.4 MPa. Calculate 10% particle size (10% D [ ⁇ m]), 50% particle size (50% D [ ⁇ m]), and 90% particle size (90% D [ ⁇ m]) from the measured particle size distribution Table 2 shows the results.
- each part of the stomach, duodenum, jejunum and ileum was ligated, and each digestive organ (stomach, duodenum, jejunum, A loop was created in the ileum).
- the stomach is the pylorus
- the duodenum is 20 cm below the pylorus and pylorus
- the jejunum is 10 cm below and 20 cm below the Treitz 'ligament
- the ileum is 20 cm above the cecum and the ileocecum.
- uracil was hardly absorbed in the stomach, but was absorbed in the gastrointestinal tract (duodenum, jejunum, and ileum) below the duodenum.
- O concentration (before administration, 10, 20, 30, 40, 50, 60, 90 minutes and 2, 4, 6, 8, 12 hours)
- uracil administered to rats, innu and humans is metabolized within 12 hours after administration and excreted as carbon dioxide in exhaled air at a high rate of 80% or more. It was confirmed.
- a delay model was created.
- Figure 3 shows changes in 13 CO concentration in exhaled air after administration of 2- 13 C uracil.
- the breath 13 c carbon dioxide concentration remained after administration, by comparing with the control group with normal gastric emptying, it can be seen that it is possible to evaluate the presence or absence of reduction and the enhancement of gastric emptying.
- the 2- 13 C uracil granules prepared in Example 2 were treated with 2- 13 administered lOOmg orally in the amount of C Urashiru, administration after 10, 20, 30, 40, 50 and the exhalation collected in Me 60 minutes, 2-13 C Urashiru breath samples were similarly taken before administration (pre ) And the 13 CO concentration in each breath sample was measured using GC / MS. Next, the amount of change in exhaled 13 CO concentration ( ⁇ 13
- the breath test using a 2-13 C Urashiru of the present invention the human patients (20 cases), the normal patients gastric emptying (normal type: solid line), gastric emptying It was possible to classify patients into patients with impaired performance (late gastric emptying: broken line) and patients with inadequate gastric emptying (insufficient: dotted line). As for these patients was measured in plasma 2-1 3 C Urashiru concentration of 20 minutes after administration 2-13 C Urashiru, as shown in FIG. 5, corresponding to the gastric emptying, gastric emptying reduction (delayed gastric emptying) for patients and gastric emptying failure patients, reduction of 2-13 C ⁇ La sills concentration in plasma were observed. Therefore, breath using 2-13 C Urashiru of the present invention It can be seen that the test reflects well the gastric emptying capacity.
- Example 2 Each granule of Example 2 was orally administered to 3 healthy subjects (subjects A, B, and C), and exhaled breath was collected over time to determine the 13 CO concentration in the exhaled breath by GC-MS analyzer (ABCA- G, Europa S
- Fig. 6 shows changes in 13 CO concentration in exhaled air after administration of the preparation.
- the vertical axis represents granule administration
- FIG. 1 Gastric (stomach), duodenum (duodenum), shows the absorption of jejunum (jejunum), and ileum Keru you to (Ilea) Urashiru (6- 14 C Urashiru).
- FIG. 2 is a diagram showing the pharmacokinetics of uracil.
- FIG. 5 shows the results of the behavior of 13 CO excreted in the breath over time when the granule of Example 2 was administered to three healthy subjects (subjects A, B, and C).
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Abstract
Description
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KR1020087026029A KR101440980B1 (ko) | 2006-04-13 | 2007-04-12 | 디스펩시아 진단 검사약 |
CA002649262A CA2649262A1 (en) | 2006-04-13 | 2007-04-12 | Test agent for diagnosing dyspepsia |
ES07741475.3T ES2488412T3 (es) | 2006-04-13 | 2007-04-12 | Agente de ensayo para el diagnóstico de la dispepsia |
CN2007800132189A CN101420985B (zh) | 2006-04-13 | 2007-04-12 | 诊断消化不良的检验剂 |
JP2008510978A JP5213702B2 (ja) | 2006-04-13 | 2007-04-12 | ディスペプシア診断検査薬 |
KR1020147020346A KR101504571B1 (ko) | 2006-04-13 | 2007-04-12 | 디스펩시아 진단 검사약 |
EP07741475.3A EP2011518B1 (en) | 2006-04-13 | 2007-04-12 | Test agent for diagnosing dyspepsia |
US12/296,631 US20100055799A1 (en) | 2006-04-13 | 2007-04-12 | Test agent for diagnosing dyspepsia |
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US10228365B2 (en) | 2012-08-20 | 2019-03-12 | Otsuka Pharmaceutical Co., Ltd. | Method for measuring carbohydrate metabolism ability, and composition for use in said method |
CA2906423A1 (en) | 2013-03-15 | 2014-09-18 | Otsuka Pharmaceutical Co., Ltd. | Method of measuring insulin resistance with fatty acid combustion, and composition used herein |
CN108030471B (zh) * | 2017-12-20 | 2023-12-26 | 天津医科大学总医院 | 动物胃肠动力检测系统及检测方法 |
CN110743021A (zh) * | 2019-11-29 | 2020-02-04 | 王相成 | 一种胃食管反流的液体试餐及其显像方法 |
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WO1997035622A1 (en) | 1996-03-25 | 1997-10-02 | Meretek Diagnostics | Measurement of gastric emptying |
WO2002072153A1 (fr) | 2001-03-13 | 2002-09-19 | Otsuka Pharmaceutical Co., Ltd. | Agents permettant de mesurer la capacite de la pyrimidine a etre metabolisee |
WO2007013409A1 (ja) | 2005-07-25 | 2007-02-01 | Otsuka Pharmaceutical Co., Ltd. | ピリジン代謝能の測定に有用な経口製剤 |
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- 2007-04-12 CN CN2007800132189A patent/CN101420985B/zh not_active Expired - Fee Related
- 2007-04-12 US US12/296,631 patent/US20100055799A1/en not_active Abandoned
- 2007-04-12 WO PCT/JP2007/058039 patent/WO2007119771A1/ja active Application Filing
- 2007-04-12 CA CA002649262A patent/CA2649262A1/en not_active Abandoned
- 2007-04-12 EP EP07741475.3A patent/EP2011518B1/en not_active Not-in-force
- 2007-04-12 KR KR1020147020346A patent/KR101504571B1/ko not_active Expired - Fee Related
- 2007-04-12 JP JP2008510978A patent/JP5213702B2/ja not_active Expired - Fee Related
- 2007-04-12 SG SG201102359-5A patent/SG170823A1/en unknown
- 2007-04-12 TW TW096112905A patent/TWI409091B/zh not_active IP Right Cessation
- 2007-04-12 ES ES07741475.3T patent/ES2488412T3/es active Active
- 2007-04-12 KR KR1020087026029A patent/KR101440980B1/ko active Active
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Also Published As
Publication number | Publication date |
---|---|
CN101420985B (zh) | 2011-11-09 |
TW200744701A (en) | 2007-12-16 |
KR101504571B1 (ko) | 2015-03-20 |
ES2488412T3 (es) | 2014-08-27 |
CN101420985A (zh) | 2009-04-29 |
KR101440980B1 (ko) | 2014-09-17 |
CA2649262A1 (en) | 2007-10-25 |
TWI409091B (zh) | 2013-09-21 |
EP2011518A4 (en) | 2011-04-20 |
KR20080112328A (ko) | 2008-12-24 |
US20100055799A1 (en) | 2010-03-04 |
SG170823A1 (en) | 2011-05-30 |
KR20140099331A (ko) | 2014-08-11 |
EP2011518B1 (en) | 2014-06-18 |
EP2011518A1 (en) | 2009-01-07 |
JP5213702B2 (ja) | 2013-06-19 |
JPWO2007119771A1 (ja) | 2009-08-27 |
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