CN100358520C - Edalavon powder for ampoul injection having good stability and its preparation method - Google Patents

Edalavon powder for ampoul injection having good stability and its preparation method Download PDF

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Publication number
CN100358520C
CN100358520C CNB031567797A CN03156779A CN100358520C CN 100358520 C CN100358520 C CN 100358520C CN B031567797 A CNB031567797 A CN B031567797A CN 03156779 A CN03156779 A CN 03156779A CN 100358520 C CN100358520 C CN 100358520C
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edaravone
water
injection
injectable powder
grams
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CN1493283A (en
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彭建华
程辉
朱勤
李若海
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Shanxi Deyuantang Pharmaceutical Co ltd
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Abstract

The present invention relates to edalavon powder for an ampoul injection, which has high stability. The present invention comprises the following components: (A) 0.1% to 50% of edalavon, 1% to 30% of edalavon is preferable, and 1% to 10% of edalavon is more preferable based on the total amount of the edalavon and water-solubility bulk additive; (B) 50% to 99.9% of water-solubility bulk additive, 70% to 99% of water-solubility bulk additive is preferable, and 90% to 99% of water-solubility bulk additive is more preferable based on the total amount of the edalavon and water-solubility bulk additive; (C) a right amount of antioxidant is adopted; (D) a right amount of pH regulation agents which are optional is adopted.

Description

Has injection Edaravone injectable powder of good stability and preparation method thereof
Technical field
The present invention relates to injection Edaravone injectable powder that has good stability and preparation method thereof.
Background technology
Edaravone is central nervous system's medication of new generation, is used for nervous symptoms, activities of daily life obstacle and the dysfunction of cerebral infarction acute stage generation, also is used for the subarachnoid hemorrhage acute stages treated.English name: Edaravone; Chemical name: 3-methyl isophthalic acid-phenyl-2-pyrazolin-5-one, English chemical name: 3-methyl-1-phenyl-2-pyrazolin-5-one.
Structural formula is:
Figure C0315677900031
The preparation of listing is an aqueous injection at present, and specification is 20ml:30mg, with normal saline dilution posterior vein instillation medication.Because Edaravone is insoluble in water, rare aqueous solution instability.Present injection need add more L-cysteine and sodium sulfite as stabilizing agent and cosolvent.Because the poor stability of aqueous solution in the heating for dissolving and the difficult control of high temperature sterilize of preparation process, decomposes easily, the stability of manufactured goods is relatively more responsive to condition of storage, and effect duration is shorter.
Summary of the invention
The purpose of this invention is to provide a kind of injection Edaravone injectable powder and preparation method thereof with better storage stability.
The Edaravone of so-called injection is according to " the definition among two appendix IB of Chinese pharmacopoeia version in 2000, refer to be sealed in the sterile solid in the container, this container can be a glass ampule, more suitably be that vial adds plug and adds aluminium lid sealing again, add suitable solvent for injection dissolving back during use for parenterai administration, i.e. the preparation of muscle, subcutaneous, vein or intra-arterial injection.
Test finds that Edaravone is highly stable under solid state, and room temperature was placed 2 years, places half a year for 37 ℃, places 10 days, and does not all observe decomposition for 60 ℃.In above-mentioned powder ampoule agent for injection, Edaravone exists with solid state.But the dissolution velocity of the Edaravone of solid crystal state in water is slower, for make injectable powder face with before can form the acceptable solution of physiology in rapid dissolving, need to solve from two approach.
The one, in the injectable powder of preparation, the solid particle size of Edaravone must be enough tiny.Can be by under the aseptic condition, micronization processing makes the pressed powder particle diameter less than 10 microns, and the powder direct packaging makes then; Also can adopt solvent crystallization, the preparation crystallite; Can also use the powder of the trickle particle diameter of spray drying method for preparation; Better method is to adopt freeze-drying, adds suitable water-soluble filler, makes loose muffin, and Edaravone therebetween is very thin crystallization.
The 2nd, the solvent when selecting suitable redissolution.This solvent must satisfy the requirements such as aseptic no thermal source of injection.Utilize Edaravone to be soluble in the aqueous solution of meta-alkalescence and the physicochemical property of rare alcohol, select the above-mentioned solution of injection specification for use, earlier the powder body in the Edaravone powder pin is dissolved into concentrated solution, is diluted to then in the sodium chloride injection or glucose injection of larger volume, for intravenous drip.
The present invention has prepared the injection Edaravone injectable powder with better storage stability by introduce water-soluble filler in prescription, and it is made by following component:
(A) 0.1%-50%, preferred 1%-30%, the more preferably Edaravone of 1%-10% is based on the two total amount of Edaravone and water-soluble filler;
(B) 50%-99.9%, preferred 70%-99%, the more preferably water-soluble filler of 90%-99% is based on the two total amount of Edaravone and water-soluble filler;
(C) an amount of antioxidant; With
(D) Ren Xuan an amount of pH regulator agent.
Wherein water-soluble filler is selected from following one or more: sugar alcohol, monosaccharide, disaccharide, oligosaccharide, polysaccharide, water-soluble amino acid and salt or derivatives thereof thereof, taurine and salt thereof, inorganic salts, polyvinyl pyrrolidone, gelatin, organic acid.Concrete example is mannitol, sorbitol, lactose, maltose, gelatin, polyvidone, dextran, glucose, citric acid, potassium chloride, sodium chloride, sodium hydrogen phosphate, sodium carbonate, glycine, lysine etc.
Antioxidant is antioxidant commonly used in the medicine, for example L-cysteine or its salt, sodium sulfite, ascorbic acid or its salt etc., or their mixture.
Second purpose of the present invention provides the method for the Edaravone preparation used of preparation injection for intravenous.In a preferred embodiment, this method may further comprise the steps: in being the alcoholic solution of 1-50vol%, water for injection or concentration adds Edaravone, and water-soluble filler, antioxidant and optional pH regulator agent, freeze drying process carries out lyophilizing routinely.
In another embodiment, this method may further comprise the steps: with Edaravone, and water-soluble filler, antioxidant and optional pH regulator agent are mixed together, micronization (for example adopting the supersonic airstream comminuting method) under aseptic condition perhaps together dissolves with water or rare alcohol, spray drying again then.
In another embodiment, this method may further comprise the steps: with Edaravone, and water-soluble filler, antioxidant and optional pH regulator agent pulverize separately mix then.
In a further embodiment, this method may further comprise the steps: the employing solvent crystallization prepares the crystallite of Edaravone, with water-soluble filler, antioxidant and optional pH regulator agent are pulverized and (are for example adopted spray drying method, the supersonic airstream comminuting method grinds etc.), remix.
Under above-mentioned all situations, pulverizing should reach below the 10 μ m, and 1nm is to the granularity of 1 μ m usually.The consumption of antioxidant generally is the 10%-800% of Edaravone consumption, is preferably 10-30%.
When freeze-drying prepares the sterile injection powder of Edaravone, must add water miscible filler.When freeze-drying prepares the sterile injection powder of Edaravone, can also add the pH regulator agent.
Water-soluble filler can be one or more of following compositions: mannitol, sorbitol, lactose, maltose, gelatin, polyvidone, dextran, glucose, citric acid, potassium chloride, sodium chloride, sodium hydrogen phosphate, sodium carbonate etc.The water-soluble filler consumption is that every bottle of 5mg is to 500mg.Comparatively suitable consumption is that 50mg is to 200mg.Only consumption is about 100mg.By weight percentage, above-mentioned water-soluble filler accounts for the 50%-99.9% of water-soluble filler and Edaravone total amount, comparatively suitable ratio 70%-99%, and the best is 90%-99%.
Here the pharmaceutic adjuvant that is suitable for regulator solution pH can be nonvolatile acid such as citric acid, malic acid, phosphoric acid, sulphuric acid, sulfurous acid, and sodium hydroxide or potassium or ammonium, sodium carbonate or potassium or ammonium salt, sodium bicarbonate or potassium or ammonium salt, sodium phosphate or potassium or ammonium salt, disodium-hydrogen or potassium or ammonium salt, sodium dihydrogen phosphate or potassium or acceptable organic or inorganic bronsted lowry acids and bases bronsted lowry of physiology and salt such as ammonium salt, citric acid trisodium salt, sodium acetate or ammonium salt.The consumption of pH regulator agent requires required amount with the pH that regulates solution before the lyophilizing to regulation.
Through the sterilized powder of air-flow micronization or solvent crystallization or spray drying method for preparation, sterilized powder packing again makes in the technology of injection Edaravone, also needs above-mentioned water-soluble filler and pH regulator agent, and consumption is identical.Can be mixed together before processing, and then supersonic airstream pulverizing or water and rare alcohol together dissolves, spray drying also can be mixed behind the pulverize separately again, or directly and the crystallite mix homogeneously.
Specification at freeze-drying preparation injection Edaravone is every unit preparation, i.e. every bottle of 30mg.By weight percentage, Edaravone accounts for the 0.1%-50% of water-soluble filler and Edaravone total amount (disregarding solvent), comparatively suitable ratio 1%-30%, and the best is 1%-10%.
In the technology of freeze-drying preparation injection Edaravone, need be prepared into stock solution with appropriate solvent.Solvent for meet " water for injection of two regulations of Chinese pharmacopoeia version in 2000, or concentration at 1%v/v to the alcoholic solution between the 50%v/v.Edaravone concentration therein at 30mg/2ml between the 30mg/20ml.Add above-mentioned water-soluble filler wiring solution-forming, the water-soluble filler consumption calculates according to solid weight in the prescription, illustrates in preamble.Be guaranteed quality, also need add in the stock solution concentration preferably 0.1% to the antioxidant of 5%w/v, these antioxidant can be a kind of of L-cysteine or its salt, sodium sulfite, ascorbic acid or its salt or use simultaneously that general only the need uses its minimal effective concentration just enough.The pH value of solution is between 3 to 9, and more suitably pH value is between 3.5 to 8, and only pH scope is the arbitrary value between 3.5 to 7.5.Being used to regulate pH value reagent is pH regulator agent and the phase application quantity that preamble has been mentioned.In fact, generally do not need to regulate pH value, electrolytical existence may be unfavorable to stability.After being mixed with stock solution as stated above, freeze drying process carries out lyophilizing routinely, makes injectable powder.The moisture of control injectable powder is preferably in below the 3%w/w below 5%w/w.
The redissolution solvent of lyophilized injectable powder is necessary for and meets injection and require solvent, can be water for injection, the 0.9%w/v sodium chloride injection, the 5%w/v% glucose injection, the ethanol injection liquid of 20%v/v, sodium bicarbonate injection (" two sodium bicarbonate injections that record of Chinese pharmacopoeia version in 2000).
Zhi Bei Edaravone freeze-dried powder as stated above is with reference to " two appendix of Chinese pharmacopoeia version in 2000 carry out stable accelerated test about the guideline of stability test.
Test method: get three batches of this product,, put into climatic chamber, be controlled under the condition of 40 ℃ and relative humidity 75%,, observe by the investigation project and to measure respectively at 0,1,2,3 and 6 months several point in time sampling by listing packing.
Result of the test: six months accelerated test result shows that outward appearance, color and luster, pH value etc. are not seen obvious change with 0 month result, the minor variations irregularities of its content, and also nonsignificance, HPLC measures and does not detect other catabolites (seeing the following form).The result shows to have excellent storage stability, can infer that stability can reach 3 years.
Injection Edaravone accelerated stability test result
(experimental enviroment: 40 ℃ of humidity 75% temperature)
Lot number Time (moon) Appearance luster Clarity of solution and color PH value Related substance (%) Content (%)
020601 0 1 2 3 6 White lyophilizing block white lyophilizing block white lyophilizing block white lyophilizing block white lyophilizing block Clarification achromaticity and clarification achromaticity and clarification achromaticity and clarification achromaticity and clarification is colourless 8.61 8.59 8.62 8.61 8.60 0.01 0.02 0.04 0.03 0.03 101.0 98.9 100.7 101.9 97.3
020602 0 1 2 3 6 White lyophilizing block white lyophilizing block white lyophilizing block white lyophilizing block white lyophilizing block Clarification achromaticity and clarification achromaticity and clarification achromaticity and clarification achromaticity and clarification is colourless 8.58 8.60 8.57 8.61 8.60 0.02 0.03 0.02 0.02 0.03 100.5 99.8 98.4 101.1 100.6
020603 0 1 2 3 6 White lyophilizing block white lyophilizing block white lyophilizing block white lyophilizing block white lyophilizing block Clarification achromaticity and clarification achromaticity and clarification achromaticity and clarification achromaticity and clarification is colourless 8.60 8.57 8.61 8.60 8.61 0.03 0.02 0.03 0.03 0.03 99.4 98.0 101.6 99.8 99.3
The effect that the present invention is useful:
1. has excellent storage stability.
2. only need add less antioxidant.
3. enrich clinical dosage form.
The specific embodiment
Following examples are to further annotation of the present invention, but not limitation of the present invention.
Embodiment 1 freeze-drying prepares injection Edaravone prescription:
Edaravone 30g
L-cysteine hydrochloride (water) 5g
Mannitol 265g
Water for injection adds to 7000ml
Make 1000 bottles
Preparation technology:
Get the mannitol and the cysteine hydrochloride of recipe quantity, add injection water 5000ml stirring and make dissolving, be warming up to 60 ℃, the Edaravone that adds recipe quantity stirs and makes dissolving, adds to the full amount of water for injection, be cooled to room temperature, add 0.01% active carbon and stirred 15 minutes, filtering decarbonization is again through 0.22 μ m microporous filter membrane malleation aseptic filtration; After the inspection of semifinished product was qualified, aseptic canning was in the 20ml vial, every bottled amount 7ml; Through frozen drying about 24 hours, seal promptly.The qualified back of product inspection packing.
Embodiment 2 freeze-dryings prepare injection Edaravone prescription:
Edaravone 30g
L-cysteine hydrochloride (water) 5g
Glucose 600g
Ethanol 500ml
Water for injection adds to 5000ml
Make 1000 bottles
Preparation method is with embodiment 1.
Embodiment 3 spray drying method for preparation injection Edaravones prescription:
Edaravone 30g
Sodium sulfite 5g
Lactose 750g
Water adds to 5000ml
Make 1000 bottles
Add in the entry Edaravone, sodium sulfite and lactose and dissolving, use the spray dryer spray drying then, be sub-packed in 1000 vials.
Embodiment 4 spray drying method for preparation injection Edaravones prescription:
Edaravone 30g
Sodium sulfite 5g
L-Lysine sodium salt 750g
Water adds to 5000ml
Make 1000 bottles
Edaravone, sodium sulfite and lactose are mixed, pulverize with the supersonic airstream comminuting method then, be sub-packed in 1000 vials.
Embodiment 5 solvent crystallization legal systems are equipped with injection Edaravone prescription:
Edaravone 60g
L-cysteine hydrochloride (water) 10g
Glucose 1000g
Ethanol 500ml
Make 1000 bottles
With the crystallization in 500ml ethanol of 30g Edaravone, make the crystallite Edaravone, mix with L-cysteine hydrochloride and glucose then, be packed as 1000 bottles.

Claims (10)

1, the injection Edaravone injectable powder of high stability is characterized in that it is made by following component:
Edaravone 30 grams
Water-soluble filler 750 grams
Antioxidant 5 grams
Described water-soluble filler is lactose or L-Lysine sodium salt, and described antioxidant is sodium sulfite.
2, the injection Edaravone injectable powder of high stability is characterized in that it is made by following component:
Edaravone 30 grams
Water-soluble filler 600 grams
Antioxidant 5 grams
Described water-soluble filler is a glucose, and antioxidant is L-cysteine hydrochloride (water).
3, the injection Edaravone injectable powder of high stability is characterized in that it is made by following component:
Edaravone 60 grams
Water-soluble filler 1000 grams
Antioxidant 10 grams
Described water-soluble filler is a glucose, and antioxidant is L-cysteine hydrochloride (water).
4, according to claim 1,2 or 3 described injection Edaravone injectable powder, it is characterized in that the Edaravone in the preparation exists with solid state.
5, the preparation method of injection Edaravone injectable powder according to claim 2, it is characterized in that getting the glucose and the L-cysteine hydrochloride (water) of recipe quantity, add injection water 5000ml stirring and make dissolving, be warming up to 60 ℃, add the Edaravone of recipe quantity, stirring makes dissolving, add to the full amount of water for injection, be cooled to room temperature, the active carbon of adding 0.01% stirred 15 minutes, filtering decarbonization is again through 0.22 μ m microporous filter membrane malleation aseptic filtration; After the inspection of semifinished product was qualified, aseptic canning was in the 20ml vial, every bottled amount 7ml; Through frozen drying 24 hours, seal promptly.
6, according to claim 1,2 or 3 described injection Edaravone injectable powder, the granularity that it is characterized in that injectable powder is less than 10 μ m.
7, according to claim 1,2 or 3 described injection Edaravone injectable powder, the granularity that it is characterized in that injectable powder is 1nm-1 μ m.
8, injection Edaravone injectable powder preparation method according to claim 1 comprises described Edaravone, and sodium sulfite and lactose add in the entry and dissolving, use the spray dryer spray drying then, are sub-packed in 1000 vials.
9, the method for preparing the described injection Edaravone of claim 1 injectable powder comprises described Edaravone, sodium sulfite, and L-Lysine sodium salt mixes, and pulverizes with the supersonic airstream comminuting method then, is sub-packed in 1000 vials.
10, the method for preparing the described injection Edaravone of claim 3 injectable powder comprises 30 gram Edaravone crystallizations in 500ml ethanol, makes the crystallite Edaravone, mixes with L-cysteine hydrochloride (water) and glucose then, is packed as 1000 bottles.
CNB031567797A 2003-09-11 2003-09-11 Edalavon powder for ampoul injection having good stability and its preparation method Expired - Fee Related CN100358520C (en)

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Cited By (2)

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WO2019008144A1 (en) * 2017-07-06 2019-01-10 Treeway Tw001 B.V. Use of edaravone in oral treatment of oxidative-stress mediated neurodegenerative disorders
US10966960B2 (en) 2017-01-17 2021-04-06 Treeway Tw001 B.V. Medical treatment comprising enteral administration of edaravone

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CA2734284C (en) 2008-11-20 2014-01-21 Techno Guard Co., Ltd. Pyrazolone derivative formulations
CN101601656B (en) * 2009-07-03 2010-08-18 王明 Edaravone liposome injection and new application thereof
CN102190622B (en) * 2010-03-15 2015-01-07 李勤耕 Water-soluble derivatives of edaravone, preparation method and application thereof
CN102144964B (en) * 2010-07-02 2013-03-27 南京长澳医药科技有限公司 Stable and safe edaravone injecta
CN102119920A (en) * 2010-07-13 2011-07-13 福建天泉药业股份有限公司 Edaravone injection and preparation method thereof
CN102204908B (en) * 2011-04-07 2013-05-15 罗诚 Pharmaceutical composition containing edaravone compound, and preparation method thereof
CN104163801B (en) * 2014-01-27 2016-08-24 洪军 A kind of edaravone compound

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CN1440749A (en) * 2003-03-24 2003-09-10 南昌弘益科技有限公司 Edaravone injection for treating acute cerebral thrombus and its prepn
CN1449754A (en) * 2003-04-16 2003-10-22 浙江震元制药有限公司 Edaravone medicine composition and preparation thereof

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1440749A (en) * 2003-03-24 2003-09-10 南昌弘益科技有限公司 Edaravone injection for treating acute cerebral thrombus and its prepn
CN1449754A (en) * 2003-04-16 2003-10-22 浙江震元制药有限公司 Edaravone medicine composition and preparation thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10966960B2 (en) 2017-01-17 2021-04-06 Treeway Tw001 B.V. Medical treatment comprising enteral administration of edaravone
WO2019008144A1 (en) * 2017-07-06 2019-01-10 Treeway Tw001 B.V. Use of edaravone in oral treatment of oxidative-stress mediated neurodegenerative disorders
US20200138712A1 (en) * 2017-07-06 2020-05-07 Treeway Tw001 B.V. Use of edaravone in oral treatment of oxidative-stress mediated neurodegenerative disorders

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