CN101618030A - Triptolide transdermal patch and preparation method thereof - Google Patents

Triptolide transdermal patch and preparation method thereof Download PDF

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CN101618030A
CN101618030A CN200910013027A CN200910013027A CN101618030A CN 101618030 A CN101618030 A CN 101618030A CN 200910013027 A CN200910013027 A CN 200910013027A CN 200910013027 A CN200910013027 A CN 200910013027A CN 101618030 A CN101618030 A CN 101618030A
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triptolide
sensitive adhesive
patch
pressure sensitive
transdermal
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CN101618030B (en
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关屹
闫冬
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Beijing Huayao Kechuang Pharmaceutical Technology Development Co ltd
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SHENYANG YILING MEDICINE TECHNOLOGY Co Ltd
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Abstract

The invention relates to a triptolide transdermal patch, which is prepared by a therapeutically effective amount of triptolide, polyvinylpyrrolidone, a certain amount of pressure-sensitive adhesive, tackifier and penetration enhancer, and the triptolide transdermal patch has the advantages of high transdermal absorption rate and small local irritation on skin, thereby being an ideal triptolide preparation.

Description

A kind of triptolide transdermal patch and preparation method thereof
Technical field
The present invention relates to a kind of transdermal patch, be specifically related to a kind of transdermal patch that contains the active component Radix Tripterygii Wilfordii lactone alcohol, belong to field of pharmaceutical preparations.
Background technology
Radix Tripterygii Wilfordii lactone alcohol claims triptolide again, be a kind of white crystal, water insoluble, be dissolved in dimethyl sulfoxide, acetone, organic solvents such as ethanol, Radix Tripterygii Wilfordii lactone alcohol is an isolating diterpenic lactone from the tripterygium plant Radix Tripterygii Wilfordii, it is one of main effective ingredient of Radix Tripterygii Wilfordii, chemical property is stable in vivo, physiologically active is strong, the high 100-200 of its relevant potency ratio Radix Tripterygii Wilfordii total glycosides doubly studies show that Radix Tripterygii Wilfordii lactone alcohol has antitumor, antiinflammatory, effects such as immunosuppressant, be used for the treatment of psoriasis clinically, rheumatoid arthritis and leukemia etc. have obtained curative effect preferably.
Triptolide is taken for a long time, can show many untoward reaction clinically, mainly show digestive system, skin and mucosa, urinary system and reproductive system etc., wherein dyspepsia reaction incidence rate can be up to 34%, Triptolide alcohol formulations toxicity test proves, the LD50=0.8mg/kg of mouse mainline, the LD50=0.9mg/kg of lumbar injection; Subacute toxicity test shows, dog, and 20ug/kg, injection every day once continuous 7 days, heart, hemopoietic system and gastrointestinal reversibility toxic reaction then occur respectively.Because many toxic and side effects of Triptolide, therefore application clinically has been subjected to bigger restriction.
Radix Tripterygii Wilfordii lactone alcohol is because its slightly solubility when making transdermal absorption formulation, often needs to solve the problem of raising transdermal absorption factor, to realize its ideal therapeutic effect.Radix Tripterygii Wilfordii lactone alcohol ointment in the prior art preparation, be intended to reduce in the body toxicity to reach more directly therapeutic effect by topical, but because its composition is insoluble in water, molecular weight is also relatively large, effective ingredient tissue permeability in the preparation is poor, transdermal absorption factor is low, thereby influence therapeutic effect, and in the process of using, the local irritation incidence rate is higher, can reach 32.34% (Shanghai City Radix Tripterygii Wilfordii lactone alcohol Ointment in Treatment psoriasis cooperative groups. Radix Tripterygii Wilfordii lactone alcohol Ointment in Treatment psoriasis. Chinese journal of dermatology [J], 1988,21 (6): 381-382).And because this preparation still is a kind of externally applied liniment, its application is subjected to multiple effects limit, such as after the usefulness preferably not with contact with clothing, avoid agents area to contact water, antiperspirant etc., also there is inconvenience in the time spent.Chinese patent CN100431547 discloses a kind of Radix Tripterygii Wilfordii lactone alcohol compound preparation of intra-articular injection therapy osteoarthritis, is Radix Tripterygii Wilfordii lactone alcohol and hyaluronic acid or chitosan are made preparation in a kind of articular cavity.Though this preparation can directly arrive focus, when using, it need under medical personnel's help, inject, and be not easy to the patient and independently use at any time.And Thunder God aches the extremely scorching reaction that the lactone injection also can be certain together, (effect of triptolide on local stimulation such as Lin Jianfeng, China's clinical pharmacology and therapeutics, 2000,5 (2): studies show that 131-133) Radix Tripterygii Wilfordii lactone alcohol rat paw subcutaneous injection can cause tangible inflammatory reaction, shows as the redness of rat paw, also can cause pain reaction, pain time can be kept 10min.
Summary of the invention
The inventor is in order to address the above problem, carried out extensive studies, find, with Radix Tripterygii Wilfordii lactone alcohol and polyvinylpyrrolidone and a certain amount of short ooze absorbent such as Mentholum or azone and mix after, unite and join in a kind of pressure-sensitive adhesive such as acrylate pressure sensitive adhesive or the siloxanes pressure sensitive adhesive, make a kind of transdermal patch of hydrophobic type, wherein Radix Tripterygii Wilfordii lactone alcohol is a kind of stable dissolved state in patch.The transdermal patch that the present invention makes identical painful lactone alcohol ointment more of the prior art is compared, and can show better release performance and Transdermal absorption performance, and have persistent action effect, and it is littler to the zest of skin to be affixed on the affected part.
The object of the present invention is to provide a kind of transdermal absorption factor height, little to the local skin zest, stick triptolide transdermal patch easily.
Triptolide transdermal patch of the present invention, comprise backing layer, the gluing casing play of pastille and imitative adhesion coating, wherein the gluing casing play of pastille mainly is 0.1%~5% active component Radix Tripterygii Wilfordii lactone alcohol by percentage by weight, the pressure sensitive adhesive of 50%-90%, the transdermal absorption accelerator of 1%-10% is formed, the viscosifier of 5%-30% and the polyvinylpyrrolidone of 1%-10%, wherein said pressure sensitive adhesive is acrylate pressure sensitive adhesive or siloxanes pressure sensitive adhesive, described viscosifier are the rosin tree lipidol, many obedient resins or Petropols, described transdermal absorption accelerator are Mentholum, azone, ethanol, in the propylene glycol any one or two kinds.
Among the present invention, viscosifier are preferably the rosin tree lipidol, have especially preferably removed the low rosin tree lipidol that boils partly and carried out hydrogenization; Percutaneous absorption enhancer is preferably Mentholum or azone.
Among the present invention, also can at random contain antioxidant, wetting agent, plasticizer and an amount of filler.
As mentioned above, triptolide transdermal patch provided by the present invention is a kind of patch of hydrophobic type, is substantially free of water.
The present invention also aims to provide a kind of method for preparing Radix Tripterygii Wilfordii lactone alcohol of the present invention, comprising: get the pressure sensitive adhesive of recipe quantity, with dissolve with ethanol, standby; Other gets polyvinylpyrrolidone, viscosifier, Percutaneous absorption enhancer and the medicine Triptolide of recipe quantity, join in the above-mentioned pressure-sensitive ethanol liquid, stir, make medicine-containing gel liquid, the ultrasonic degas bubble, then routinely on the coating machine it being coated on the backing layer material, preparation drug-reservoir layer, under 60-90 ℃ of condition dry 2-5 hour, make its drying after, cover adherent layer again, be die-cut into patch at last.Die-cut patch can be regulated size as required.
Specific embodiment
Below by embodiment the present invention is described in more detail, cited embodiment should not be construed as and the present invention will be limited to this.
Embodiment 1 to 3
In each embodiment, the pressure sensitive adhesive (acrylate pressure sensitive adhesive or siloxanes pressure sensitive adhesive) with recipe quantity joins in the dehydrated alcohol, fully stirs and makes dissolving; Other gets the ingredient Radix Tripterygii Wilfordii lactone alcohol of recipe quantity, with anhydrous alcohol solution, viscosifier, Percutaneous absorption enhancer (azone or Mentholum) with recipe quantity join in the above-mentioned pastille alcoholic solution, stir to make abundant dissolving, make glue, mix with above-mentioned pressure sensitive adhesive ethanol liquid, stir, and ultrasonic 30 minutes de-bubbled, at this moment, rubber cement liquid should be as clear as crystal.Then with rubber cement liquid on the coating machine it being coated on the backing layer material, preparation drug-reservoir layer, under 60 ± 5 ℃ of conditions dry 2-3 hour, make its drying after, cover adherent layer again, be die-cut into the paster of required size at last, promptly get the Radix Tripterygii Wilfordii lactone alcohol patch.
Table 1 embodiment 1-3 write out a prescription (percentage by weight %)
Figure G2009100130273D00041
The part of removing when * being in the end dry
Fixedly Radix Tripterygii Wilfordii lactone alcohol content is, acrylate pressure sensitive adhesive is, the rosin tree lipidol is, the amount of polyvinylpyrrolidone, for the penetrating agent that adds not commensurability (accounting for the weight percentage of total prescription) (azone: 0%, 1%, 3%, 5%, 7%), to determine to add the optimised quantity of penetrating agent.
Fixedly Radix Tripterygii Wilfordii lactone alcohol content is, acrylate pressure sensitive adhesive is, the rosin tree lipidol is, the amount of penetrating agent azone, for the polyvinylpyrrolidone (0%, 3%, 5%, 7%, 10%, 12%) that adds not commensurability (accounting for the weight percentage of total prescription), to determine to add the optimised quantity of penetrating agent.
Measure by the Triptolide percentage composition that percutaneous in its 24 hours is seen through, we find, when polyvinylpyrrolidone and penetrating agent all do not join in the transdermal patch, in the transdermal patch of making in the Radix Tripterygii Wilfordii lactone alcohol 24 hours the percutaneous transmitance low; When adding penetrating agent, its percutaneous transmitance increases, but works as after the penetrating agent that is added is higher than 5%, and instead the percutaneous transmitance in 24 hours reduces, and has stoped the further release of effective ingredient.Add the transdermal patch of polyvinylpyrrolidone, can make Radix Tripterygii Wilfordii lactone alcohol present a kind of more stable dissolved state in patch, its addition is that 1~5 times of active constituents of medicine is advisable.
Embodiment 4 pharmacological toxicology embodiment
Below test from pharmacological toxicology and to verify safety of the present invention and effectiveness.
In order to estimate its safety, for the Secure Application of this medicine provides foundation, we have carried out relevant toxicity research to triptolide transdermal paster provided by the invention.
The test of one acute dermal toxicity
Select 10 of healthy adult Wistar rats for use, male and female half and half, body weight 220-250g adopts the method for once limiting the quantity of, 24h before on-test cuts off the quilt hair that the contamination zone is intended at animal trunk back, and unhairing is to answer extreme care, can not injured skin in order to avoid cutaneous permeability, press 100mg/kg dosage, the clip content of dispersion is attached to back part of animal depilation district (scope 3-4cm greater than the Triptolide transdermal patch that 10mg/ pastes 2), cover with two-layer template, seal fixedly 24h with the nonirritant adhesive plaster, take out behind the 24h and tried thing, observe animal poisoning sign, 7 days observation periods, to weigh once in the 7th day, off-test is put to death animal and is observed general pathology and changes.
The result shows that the sign of poisoning does not appear in animal, the observation period animal do not have death, triptolide transdermal patch is actual nontoxic to the rat skin acute toxicity.
8 of healthy White Rabbits are selected in two acute skin irritation tests for use, male and female are regardless of, be divided into two groups, (Fujian Pacific Pharmacy Co.,Ltd produces to be respectively patch group of the present invention and Radix Tripterygii Wilfordii lactone alcohol ointment group, the accurate word H35021241 of traditional Chinese medicines), test and back part of animal spinal column diamond wool cut in preceding 24 hours, can not damage epidermis during cropping, unhairing scope left and right sides Ge Yue 2cm * 3cm.During test; get triptolide transdermal patch of the present invention and Radix Tripterygii Wilfordii lactone alcohol ointment; about 0.05mg (in the amount of Radix Tripterygii Wilfordii lactone alcohol) is attached to depilation district, right side; (2.5cm * 2.5cm) and one deck template cover; the sealing of reuse nonirritant adhesive plaster, fixing 4h; depilation district in left side is contrast, remove 1h, 24h behind the triptolide transdermal patch of the present invention, 48h and 72h observation and are tried the side dermoreaction to use two layers of gauze then.Equally, get Radix Tripterygii Wilfordii lactone alcohol ointment (every rabbit is smeared consumption for containing Radix Tripterygii Wilfordii lactone alcohol 0.02mg), observational technique ketone patch group.
The result shows: after removing triptolide transdermal patch, animal is tried position skin and erythema, edema are not occurred, and 24h, 48h, 72h top average are 0 grade, and triptolide transdermal patch of the present invention is a nonirritant to the rabbit acute skin irritation; And Radix Tripterygii Wilfordii lactone alcohol ointment group as seen, and animal is tried the position and the fraction erythema occurs, and with among a small circle edema, the top average is 1 grade.From last result as can be seen, triptolide transdermal patch of the present invention is less than existing Radix Tripterygii Wilfordii lactone alcohol ointment aspect skin irritation.
Three, transdermal penetration test
Do not have a hair rat (body weight 200g) with pentobarbital anesthesia, remove ventral seta after, downcut the skin of abdomen sample, the dermatological specimens that each is such places a kind of Franz diffusion cell (effective infiltrating area: 2.83cm 2, pool volume: 16ml), and with triptolide transdermal patch of the present invention (area 2.5cm 2, be followed successively by and contain Radix Tripterygii Wilfordii lactone alcohol 0.005mg, 0.02mg, 0.05mg, be i.e. three kinds of patches of embodiment 3,2,1) be attached on the dermatological specimens; Other gets Radix Tripterygii Wilfordii lactone alcohol ointment, and (Fujian Pacific Pharmacy Co.,Ltd produces, the accurate word H35021241 of traditional Chinese medicines) 0.02mg (in the amount of effective ingredient Radix Tripterygii Wilfordii lactone alcohol) places in the supply chamber, attaching receipts liquid is 50% methanol sodium chloride solution in the pond, note bubble in the emptying pond, making between the contacting of skin and reception liquid does not have bubble.Subsequently, in 37 ℃ of following heated at constant temperature cells, stir the liquid of accepter in this pond by a kind of magnetic stirrer, with constant interval (4,8,12,16,20,24h), repeatedly to the accepter liquid (0.5ml that partly takes a sample, replenish the fresh liquid of respective volume simultaneously), and measure the content of this liquid part Radix Tripterygii Wilfordii lactone alcohol.
The results are shown in Table 2
The percutaneous of each time point of table 2 Radix Tripterygii Wilfordii lactone alcohol patch sees through percentage composition (%)
Figure G2009100130273D00061
From last table result as can be seen, under the identical situation of consumption, triptolide transdermal patch is at a variant time point accumulative total excessive all obvious unnecessary Radix Tripterygii Wilfordii lactone alcohol ointment, utilization rate of active components is higher than ointment formulation, and the accumulative total transmitance of patch increases with component content in the patch and increases.
Four, to the therapeutical effect of adjuvant-induced arthritis
Animal: the SD rat, be male, body weight 220-250g purchases in Shenyang Pharmaceutical University experimental animal center.
Reagent: bacillus calmette-guerin vaccine (Chinese biological goods evaluating center), lanoline (Shenyang Pu Ruixing Fine Chemical Co., Ltd), liquid paraffin (Shenyang Chemical Co., Ltd.'s product).
The preparation of adjuvant: with liquid paraffin and lanoline in 2: 1 ratio in 70 ℃ of abundant mixings of following heat supply, it is even that autoclaving, every then ml add the abundant ground and mixed of bacillus calmette-guerin vaccine 6mg, makes Freund's complete adjuvant.
The foundation of arthritis model: every above-mentioned adjuvant 0.1ml of the right back sufficient plantar subcutaneous injection of rat, induce arthritic generation, every other day observe once, be completed into until arthritis, the lasting swelling 4 days of the injection adjuvant one parapodum sole of the foot from first day, then begin detumescence, continued swelling once more in the 8th day, peaked in the 16th day, afterbody, ear's secondary response was in generation in the 12nd day, mainly show as injection adjuvant offside (left hind) pedal swelling, afterbody, the also swelling in various degree of ear and forelimb joint is marked to each group rat left hind lesion degree by following standard: 0 minute: do not have red and swollen; 1 minute: the little toe arthroncus; 2 minutes: toe joint and pedal swelling; 3 minutes: ankle joint sufficient pawl swelling once; 4 minutes: comprise the whole sufficient pawl swelling of ankle joint.
Grouping and administration: behind the injection adjuvant the 19th day, the rats with arthritis secondary response tended towards stability, and the whole body pathological changes is also more obvious.Above-mentioned rat is divided into 5 groups at random, every group 10, first group is the substrate matched group, sticks the patch that does not contain medicine, second group is Radix Tripterygii Wilfordii lactone alcohol ointment group, touch deposited ointment, the 3-5 group is patch group of the present invention (substrate of embodiment 2, sticking dosage is 5,20,50 μ g/kg), coating every day or replacing patch are once, continuous 7 days, measured left back sufficient sole of the foot thickness in the 7th day, the results are shown in Table 3.
Table 3 Triptolide transdermal patch to the influence of the left back foot swelling of adjuvant-induced arthritis (x ± s, n=10)
Figure G2009100130273D00071
Compare with matched group: *P<0.05, *P<0.01; Compare with the ointment group: #P<0.05.
Last table result shows, left back foot swelling improves significantly to adjuvant-induced arthritis for Radix Tripterygii Wilfordii lactone alcohol ointment and transdermal patch, difference has significance good (P<0.05), the middle and high dosage group of transdermal patch wherein of the present invention difference more remarkable (P<0.01); The middle and high dosage group of the present invention is compared with the ointment group, and its improvement effect obviously is better than ointment group (P<0.05).

Claims (3)

1, a kind of triptolide transdermal patch, described patch comprises backing layer, the gluing casing play of pastille and imitative adhesion coating, it is characterized in that: the gluing casing play of pastille mainly is 0.1%~5% active component Radix Tripterygii Wilfordii lactone alcohol by percentage by weight, the pressure sensitive adhesive of 50%-90%, the transdermal absorption accelerator of 1%-10% is formed, the viscosifier of 5%-30% and the polyvinylpyrrolidone of 1%-10%, wherein said pressure sensitive adhesive is acrylate pressure sensitive adhesive or siloxanes pressure sensitive adhesive, described viscosifier are the rosin tree lipidol, many obedient resins or Petropols, described transdermal absorption accelerator are Mentholum, azone, ethanol, in the propylene glycol any one or two kinds.
2, Radix Tripterygii Wilfordii lactone alcohol patch according to claim 1 is characterized in that described viscosifier are the rosin tree lipidol, and described transdermal absorption accelerator is Mentholum or azone.
3, a kind of method for preparing claim 1 or 2 described triptolide transdermal patch comprises: get the pressure sensitive adhesive of recipe quantity, and with dissolve with ethanol, standby; Other gets polyvinylpyrrolidone, viscosifier, transdermal enhancer and the medicine Triptolide of recipe quantity, join in the above-mentioned pressure-sensitive ethanol liquid, stir, make medicine-containing gel liquid, the ultrasonic degas bubble, then routinely on the coating machine it being coated on the backing layer material, preparation drug-reservoir layer, under 60-90 ℃ of condition dry 2-5 hour, make its drying after, cover adherent layer again, be die-cut into patch at last.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102670565A (en) * 2011-03-14 2012-09-19 苏州博创园生物医药科技有限公司 Percutaneous absorption patch containing natural medicaments
CN102670624A (en) * 2011-03-14 2012-09-19 福建省医学科学研究院 Patch for treating rheumatic arthritis and preparation method thereof
CN109125733A (en) * 2018-10-30 2019-01-04 成都先手生物科技有限公司 A kind of composition for the treatment of of arthritis and its application
CN111000888A (en) * 2019-12-27 2020-04-14 浙江中医药大学 Tripterygium wilfordii residue patch and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5656286A (en) * 1988-03-04 1997-08-12 Noven Pharmaceuticals, Inc. Solubility parameter based drug delivery system and method for altering drug saturation concentration
WO2002036103A1 (en) * 2000-11-06 2002-05-10 Samyang Corporation Transdermal drug delivery system with improved water absorbability and adhesion properties

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102670565A (en) * 2011-03-14 2012-09-19 苏州博创园生物医药科技有限公司 Percutaneous absorption patch containing natural medicaments
CN102670624A (en) * 2011-03-14 2012-09-19 福建省医学科学研究院 Patch for treating rheumatic arthritis and preparation method thereof
CN102670624B (en) * 2011-03-14 2015-04-15 福建省医学科学研究院 Patch for treating rheumatic arthritis and preparation method thereof
CN109125733A (en) * 2018-10-30 2019-01-04 成都先手生物科技有限公司 A kind of composition for the treatment of of arthritis and its application
CN111000888A (en) * 2019-12-27 2020-04-14 浙江中医药大学 Tripterygium wilfordii residue patch and preparation method thereof

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