Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A glucose sustained-release preparation for treating glycogen accumulation disease

A slow-release preparation and glucose technology are applied in the field of glucose sustained-release preparations for treating glycogen storage disease and their preparation, which can solve the problems of volume expansion, poor tolerance, large dosage and the like, and achieve the effect of good sustained-release performance.

Active Publication Date: 2021-01-26
PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI +2
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, although the raw cornstarch treatment method has low treatment cost, its taking method has many defects: 1) the number of taking is many, no less than 4 times a day, generally between two meals, especially at night at 3 o'clock in the morning 2) taking conditions are harsh, must eat "raw" cornstarch, boiled starch or cornmeal porridge is not acceptable, must be taken with cold water, even in winter also need to use cold water, many patients are difficult to accept; 3) taking large doses, Raw cornstarch expands in volume after being ingested with cold water, and it is very difficult for children to take a therapeutic amount of starch at one time; 4) Poor tolerance, often intolerable to the digestive system of young children, easily leading to diarrhea; 5) Poor compliance, long-term medication is required, but The way of taking medicine is complicated, which will bring a lot of inconvenience to daily life; 6) The quality of commercially available raw cornstarch varies greatly, resulting in a large deviation in therapeutic effect; the patient's dosage
[0009] In summary, although raw cornstarch therapy has the advantage of low cost, its inherent defects greatly limit its use, and there is an urgent need for a new preparation that can replace the therapy in clinical practice. A glucose sustained-release preparation for the treatment of glycogen accumulation disease of the present invention That is, by maintaining the continuous and slow release of glucose, the blood sugar of the child can be maintained within the normal range, and the excessive fluctuation of blood sugar can be avoided to achieve the purpose of treatment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A glucose sustained-release preparation for treating glycogen accumulation disease
  • A glucose sustained-release preparation for treating glycogen accumulation disease
  • A glucose sustained-release preparation for treating glycogen accumulation disease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Instruments and equipment:

[0060] Digital Overhead Mechanical Stirrer (RW20)

[0061] Fluidized bed granulation dryer (FLZB1.5, Chuangzhi Electromechanical)

[0062] INNOJET fluidized bed (VENTILVSL, INNOJET, Germany)

[0063] Extrusion spheronizer (S-250, Chongqing Yingge Granulation Coating Technology Co., Ltd.)

[0064] Low temperature rotary extruder (LTAE-200, Shenzhen Xinyite Technology)

[0065] Wet mixing granulator (HLSHZ-6, Beijing Institute of Aeronautical Manufacturing Engineering)

[0066] Analytical Balances

[0067] Prescription one:

[0068] Raw material weight ratio:

[0069] Glucose pellet core: glucose monohydrate 360; microcrystalline cellulose-101 40;

[0070] Film Coating: Ethylcellulose-20P 120; Hydroxypropylcellulose-EF 15;

[0071] Triethyl citrate 12; 95% ethanol 1800;

[0072] Purified water 450.

[0073] The preparation method is as follows:

[0074] 1) Preparation of glucose pellets:

[0075] ① Preparation of soft material: Wei...

Embodiment 2

[0087] Instrument and equipment: with embodiment 1.

[0088] Prescription two:

[0089] Raw material weight ratio:

[0090] Glucose pellet core: glucose monohydrate 360; microcrystalline cellulose-101 36;

[0091] Film coating: Ethylcellulose-20P 120; Hydroxypropylcellulose-EF 30;

[0092] Triethyl citrate 12; 95% ethanol 2300;

[0093] Purified water 575.

[0094] The preparation method is as follows:

[0095] 1) Preparation of glucose pellets:

[0096] ① Preparation of soft material: Weigh the prescribed amount of glucose monohydrate and microcrystalline cellulose-101 (as diluent) into a wet mixing granulator, mix for 10 minutes, select purified water as the wetting agent, and It is added in the form of atomization, and the soft material can be obtained after granulation;

[0097] ② Extrusion--spheronizing pellets: take appropriate amount of soft materials and put them into the extruder to prepare extruded materials, put the extruded materials into the spheronizer, ad...

Embodiment 3

[0107] Instrument and equipment: with embodiment 1.

[0108] Prescription three:

[0109] Raw material weight ratio:

[0110] Glucose pellet core: glucose monohydrate 360; microcrystalline cellulose-101 40;

[0111] Film Coating: Ethylcellulose-45P 80; Hydroxypropylcellulose-EF 10;

[0112] Triethyl citrate 8; 95% ethanol 2055;

[0113] Purified water 515.

[0114] The preparation method is as follows:

[0115] 1) Preparation of glucose pellets:

[0116] ① Preparation of soft material: Weigh the prescribed amount of glucose monohydrate and microcrystalline cellulose-101 (as diluent) into a wet mixing granulator, mix for 5 minutes, use purified water as the wetting agent, and It is added in the form of atomization, and the soft material can be obtained after granulation;

[0117] ② Extrusion--spheronizing pellets: take appropriate amount of soft materials and put them into the extruder to prepare extruded materials, put the extruded materials into the spheronizer, adjust...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sustained-release glucose preparation for treating glycogen storage diseases and a preparation method thereof, belonging to the field of medicinal preparations. The sustained-release glucose preparation is composed of two parts, i.e., a glucose pill core and a film coating and prepared from glucose monohydrate, microcrystalline cellulose, ethyl cellulose, hydroxypropyl cellulose, triethyl citrate, ethanol and purified water by using a modern preparation technology. Results of release-rate determination experiments prove that the sustained-release glucose preparation provided by the invention has good sustained-release performance and can be gradually and slowly released within 6 h; the release rates of sustained-release glucose preparations prepared according to three different prescriptions are 40 to 70% within 6 h; so the sustained-release glucose preparation can replace raw core starch and be used for treatment of glycogen storage diseases.

Description

technical field [0001] The invention belongs to the field of pharmaceutical preparations, and provides a glucose sustained-release preparation for treating glycogen accumulation disease and a preparation method thereof. Background technique [0002] Glycogen storage disease (GSD) is a kind of glycogen metabolism disorder disease caused by congenital enzyme defects, most of which are autosomal recessive, and the onset varies with races. At present, glycogen storage disease is still a rare disease. In view of the complex disease classification caused by the difference in the type of enzyme deficiency, there is no accurate statistical data on its incidence in various countries. According to European data, the prevalence of this disease in Europe is The incidence rate is about 1 / 20000~1 / 25000. [0003] Glycogen is a high-molecular polysaccharide composed of glucose units. It is mainly stored in the liver and muscle as backup energy. The normal liver and muscle contain about 4% ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61K9/52A61K47/38A61K31/7004A61P3/08
CPCA61K9/0002A61K9/5047A61K31/7004A61K47/38
Inventor 钱锋王薇邱正庆宋红梅刘程宇陈曼云朱德志张长青
Owner PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products