CN100348194C - Lipid formulation of nolatrexed dihydrochloride and its preparation method - Google Patents
Lipid formulation of nolatrexed dihydrochloride and its preparation method Download PDFInfo
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- CN100348194C CN100348194C CNB200510085527XA CN200510085527A CN100348194C CN 100348194 C CN100348194 C CN 100348194C CN B200510085527X A CNB200510085527X A CN B200510085527XA CN 200510085527 A CN200510085527 A CN 200510085527A CN 100348194 C CN100348194 C CN 100348194C
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- Prior art keywords
- liposome
- weight portion
- nolatrexed dihydrochloride
- nolatrexed
- dihydrochloride
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- BKTRENAPTCBBFA-UHFFFAOYSA-N 4-[2-(4-hydroxy-3-phenylphenyl)propan-2-yl]-2-phenylphenol Chemical compound C=1C=C(O)C(C=2C=CC=CC=2)=CC=1C(C)(C)C(C=1)=CC=C(O)C=1C1=CC=CC=C1 BKTRENAPTCBBFA-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 150000002632 lipids Chemical class 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims description 22
- 238000009472 formulation Methods 0.000 title description 9
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 claims abstract description 32
- 235000012000 cholesterol Nutrition 0.000 claims abstract description 16
- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 claims abstract description 9
- 229940083466 soybean lecithin Drugs 0.000 claims abstract description 9
- -1 nolatrexed dihydrochloride lipid Chemical class 0.000 claims abstract description 8
- 239000002502 liposome Substances 0.000 claims description 73
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- 239000000243 solution Substances 0.000 claims description 26
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 25
- 229930195725 Mannitol Natural products 0.000 claims description 25
- 239000000594 mannitol Substances 0.000 claims description 25
- 235000010355 mannitol Nutrition 0.000 claims description 25
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- 239000008215 water for injection Substances 0.000 claims description 23
- 239000012528 membrane Substances 0.000 claims description 17
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
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- 238000001914 filtration Methods 0.000 claims description 12
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 claims description 12
- 235000019165 vitamin E Nutrition 0.000 claims description 12
- 229940046009 vitamin E Drugs 0.000 claims description 12
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- 150000003904 phospholipids Chemical class 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims description 6
- 238000000502 dialysis Methods 0.000 claims description 6
- 239000001509 sodium citrate Substances 0.000 claims description 6
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 5
- WORJEOGGNQDSOE-UHFFFAOYSA-N chloroform;methanol Chemical compound OC.ClC(Cl)Cl WORJEOGGNQDSOE-UHFFFAOYSA-N 0.000 claims description 4
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- 239000003814 drug Substances 0.000 abstract description 17
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- 231100001274 therapeutic index Toxicity 0.000 abstract description 5
- PORPENFLTBBHSG-MGBGTMOVSA-N 1,2-dihexadecanoyl-sn-glycerol-3-phosphate Chemical group CCCCCCCCCCCCCCCC(=O)OC[C@H](COP(O)(O)=O)OC(=O)CCCCCCCCCCCCCCC PORPENFLTBBHSG-MGBGTMOVSA-N 0.000 abstract 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 12
- 229940079593 drug Drugs 0.000 description 9
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
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- 239000008112 carboxymethyl-cellulose Substances 0.000 description 6
- 235000019359 magnesium stearate Nutrition 0.000 description 6
- XHWRWCSCBDLOLM-UHFFFAOYSA-N nolatrexed Chemical compound CC1=CC=C2NC(N)=NC(=O)C2=C1SC1=CC=NC=C1 XHWRWCSCBDLOLM-UHFFFAOYSA-N 0.000 description 5
- 229950000891 nolatrexed Drugs 0.000 description 5
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- 108010022394 Threonine synthase Proteins 0.000 description 3
- 102000005497 Thymidylate Synthase Human genes 0.000 description 3
- BIABMEZBCHDPBV-UHFFFAOYSA-N dipalmitoyl phosphatidylglycerol Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(COP(O)(=O)OCC(O)CO)OC(=O)CCCCCCCCCCCCCCC BIABMEZBCHDPBV-UHFFFAOYSA-N 0.000 description 3
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- 210000001519 tissue Anatomy 0.000 description 3
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- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 description 2
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- AVRPFRMDMNDIDH-UHFFFAOYSA-N 1h-quinazolin-2-one Chemical class C1=CC=CC2=NC(O)=NC=C21 AVRPFRMDMNDIDH-UHFFFAOYSA-N 0.000 description 1
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 description 1
- 206010067484 Adverse reaction Diseases 0.000 description 1
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
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- Medicinal Preparation (AREA)
Abstract
The present invention provides a lipid composition of nolatrexed dihydrochloride, which comprises nolatrexed dihydrochloride, soybean lecithin, dipalmitoyl glycerophosphatide and cholesterol, wherein the weight portion of the nolatrexed dihydrochloride is 10 to 20; the weight portion of the soybean lecithin is 20 to 40; the weight portion of the dipalmitoyl glycerophosphatide is 2 to 5; the weight portion of the cholesterol is 5 to 20. A nolatrexed dihydrochloride lipid body prolongs time that medicine is kept in a people's body in order to enlarge the concentration of the medicine in a liver and a tumor tissue, and the therapeutic index is enhanced.
Description
Technical field
The present invention relates to Liposomal formulation of nolatrexed dihydrochloride and preparation method thereof.
Background technology
Nolatrexed is a kind of thymidylate synthetase (Thymidylate Synthase, TS) inhibitor.Its chemistry 2-amino by name-6-methyl-5-(4-pyridine sulfydryl)-4 (1H)-quinazolinones.The nolatrexed of clinical practice is its dihydrochloride chemical compound.Nolatrexed the earliest by the crystal structure of U.S. Agouron company based on TS, utilization area of computer aided drug design technology and the antitumor drug of a kind of brand new of designing and developing.It is mainly used in treatment hepatocarcinoma, colorectal carcinoma, pulmonary carcinoma, carcinoma of prostate, cancer of pancreas and tumor of head and neck.Wherein be used for liver cancer treatment and be in III phase conceptual phase.
Nolatrexed dihydrochloride can be by intravenous injection and oral mode administration.The main adverse reaction that occurs in clinical trial is that the infusion site colour of skin is pale, there is edema to take place, occur chemotherapeutics common feel sick, symptom of digestive tract such as vomiting, hemopoietic systems infringements such as neutrophilic granulocyte minimizing, thrombocytopenia, bone marrow depression may take place in (case II level toxicity dose limitation) when threshold dose.In addition, mucositis, erubescence, pimple are also more common.Different with other thymidylate synthetase inhibitor is that it is fast that the untoward reaction that nolatrexed dihydrochloride causes recovers.
But the therapeutic regimen that can not excise or shift liver cancer patient for treatment is the per 21 days continuous 5 days nolatrexed dihydrochloride 1000mg/m of venoclysis in 24 hours
2/ day).This therapeutic regimen brings inconvenience for the clinical practice of nolatrexed dihydrochloride.
If can be made into Liposomal formulation, both can solve the trouble that continuous intravenous injection brings, can also improve its therapeutic index because of the targeting of liposome.
Liposome is phospholipid to be dispersed in form a kind of bilayer folliculus with similar biofilm structure in the water naturally.It can be divided into multilamelar liposome and unilamelar liposome.Unilamelar liposome is divided into small unilamellar vesicle and large unilamellar vesicle again.Liposome as pharmaceutical carrier mostly is large unilamellar vesicle at present, and particle diameter is generally between the 100-1000 nanometer.The main mechanism of action that liposome is used for pharmaceutical carrier is that drug powder or solution are wrapped in aqueous phase or the embedding liposome bilayer lipid membrane that the liposome bilayer lipid membrane is sealed, this microgranule has the class cellularity, enter the autoimmune function that is mainly activated body in the human body by reticuloendothelial system phagocytic, and the interior distribution of the body that changes encapsulated medicine, make the drug main will be liver, spleen, put aside in the histoorgan such as lung and bone marrow, the concentration of prolong drug in blood vessel, thereby catch the therapeutic index of high medicine, reduce the toxicity of the therapeutic dose and the reduction medicine of medicine.
Summary of the invention
The objective of the invention is nolatrexed dihydrochloride is made Liposomal formulation, to improve its therapeutic effect to tumor treatment effect, particularly hepatocarcinoma.
The invention provides a kind of liposome composition of nolatrexed dihydrochloride, it contains the nolatrexed dihydrochloride of 10-20 weight portion, the soybean lecithin of 20-40 weight portion, the dipalmitoyl-glycerol phospholipid of 2-5 weight portion and the cholesterol of 5-20 weight portion.
In a preferred embodiment of the invention, the liposome composition of nolatrexed dihydrochloride of the present invention contains the nolatrexed dihydrochloride of 10-20 weight portion, the soybean lecithin of 20-40 weight portion, the dipalmitoyl-glycerol phospholipid of 2-5 weight portion, the cholesterol of 5-20 weight portion, the vitamin E of 0.02-0.045 weight portion, the citric acid of 30-100 weight portion, the sodium citrate of 30-100 weight portion, the mannitol of the natrium carbonicum calcinatum of 40-180 weight portion and 300-1000 weight portion.
In one embodiment of the invention, wherein said liposome is freeze dried form.
The present invention also provides the preparation method of nolatrexed dihydrochloride liposome composition, may further comprise the steps:
1) phospholipid, cholesterol and vitamin E are dissolved in chloroform or the chloroform-methanol mixed solvent, organic solvent is removed in decompression, forms lipid membrane;
2) with lipid membrane aquation in citric acid solution, obtain the blank liposome suspension;
3) be controlled between the 50-300nm with the particle diameter of high pressure homogenisers, regulate pH value to 7.1-7.8 with liposome;
4) nolatrexed dihydrochloride is dissolved in water for injection, adds mannitol, mix with liposome turbid liquor, 50-60 ℃ of following jolting;
5) adopt Liposomal dispersion to wash the liposome of nolatrexed dihydrochloride, utilize the dialysis Filtration to make the outer solution of liposome be replaced into the Liposomal dispersion of pH5-7, get the nolatrexed dihydrochloride liposome turbid liquor;
6) use the micro-pore-film filtration degerming;
7) randomly with the liposome solutions lyophilizing.
The present invention also provides a kind of capsule preparations, comprises the nolatrexed dihydrochloride liposome composition.
The present invention also provides a kind of capsule preparations, comprises the nolatrexed dihydrochloride of 10-20 weight portion, the starch of 20-80 weight portion, the carboxymethyl cellulose of 1-5 weight portion, and magnesium stearate.
The present invention also provides a kind of capsule preparations, comprises the nolatrexed dihydrochloride liposome composition.
The present invention also provides a kind of freeze-dried powder, comprises the nolatrexed dihydrochloride of 1 weight portion and the mannitol of 0.2-2 weight portion.
Freeze-dried powder of the present invention optimizes filling and the freeze drying protectant of mannitol as said preparation from a large amount of fillings and freeze drying protectant, obtained all satisfied goods of profile and dissolubility.
Preparation of the present invention also contains adjuvant, filling and freeze drying protectant etc.Adjuvant is selected from diluent such as starch, dextrin etc., binding agent such as carboxymethyl cellulose, lubricant such as magnesium stearate and Pulvis Talci; Filling and freeze drying protectant such as trehalose, mannitol, lactose, glucose, maltose etc.
In preparation of the present invention, the amount ranges of principal agent and adjuvant is a nolatrexed dihydrochloride in the capsule: adjuvant 1: 2～8 (weight ratio); Nolatrexed dihydrochloride in the freeze-dried powder: the ratio of adjuvant is 1: 0.02～0.2.
According to a preferred embodiment of the present invention, the lipid freeze-dry powder prescription is
Nolatrexed dihydrochloride 10g-20g
Soybean lecithin 20-40g
Dipalmitoyl-glycerol phospholipid (DPPG) 2-5g
Cholesterol 5-20g
Vitamin E 20-45mg
Citric acid 30-100g
Sodium citrate 30-100g
Natrium carbonicum calcinatum 40-180g
Mannitol 300-1000g
Water for injection 1500-3000ml
Preferably, the preparation method of the Liposomal formulation of nolatrexed dihydrochloride comprises the following step:
1) select for use phospholipid, cholesterol and vitamin E to be dissolved in chloroform or the chloroform-methanol mixed solvent according to the prescription composition, organic solvent is removed in decompression on Rotary Evaporators, forms lipid membrane.
2) according to the citric acid solution (PH is 4.0) of prescription preparation 0.3M, come the aquation lipid membrane, get blank liposome suspension with this solution.
3) aquation fully after, prepare liposome to the required particle diameter and the uniformity with high pressure homogenisers, be controlled at 50-300nm.Add sodium carbonate liquor, the pH value of the liposome suspension after the adjusting aquation is to 7.1-7.8.
4) nolatrexed dihydrochloride is dissolved in water for injection, is heated to the mannitol that adds formula ratio after 50 ℃.Mix with liposome turbid liquor dissolving back fully, 50-60 ℃ of following jolting, stirring, insulation 10min..
5) adopt Liposomal dispersion to wash the liposome of nolatrexed dihydrochloride, utilize the dialysis Filtration to make the outer solution of liposome be replaced into the Liposomal dispersion of pH5-pH7, get the nolatrexed dihydrochloride liposome turbid liquor.
6) use the water for injection standardize solution, with the nolatrexed dihydrochloride liposome suspension with the micro-pore-film filtration degerming after packing get product, finished product can be preserved down or lyophilizing be saved to use at 2 ℃-8 ℃.
Liposomal formulation of the present invention both can solve the trouble that continuous intravenous injection brings because of its targeting and slow releasing function, can also improve its therapeutic index.
The specific embodiment
Embodiment 1
Capsule formula one (every hydrochloric nolatrexed 50mg)
Nolatrexed dihydrochloride 10g
Starch 40g
Carboxymethyl cellulose 2.5g
Magnesium stearate 250mg
Preparation method
With nolatrexed dihydrochloride 10g, add as starch 40g, cross 120 mesh sieves, mix homogeneously respectively.Add 8% starch slurry mixed dust formulation is made soft material, cross 20 order nylon mesh, granulate, dry below 60 ℃.The magnesium stearate that adds 2.5g carboxymethyl cellulose and 250mg, it is even, encapsulated to cross 20 mesh sieve granulate.Every weight 250mg.
Embodiment 2
Capsule formula two (every hydrochloric nolatrexed 200mg)
Nolatrexed dihydrochloride 20g
Starch 20g
Carboxymethyl cellulose 1g
Magnesium stearate 100mg
Preparation method
With nolatrexed dihydrochloride 20g, add as starch 20g, cross 120 mesh sieves, mix homogeneously respectively.Add 8% starch slurry mixed dust formulation is made soft material, cross 20 order nylon mesh, granulate, dry below 60 ℃.The magnesium stearate that adds 1g carboxymethyl cellulose and 100mg, it is even, encapsulated to cross 20 mesh sieve granulate.Every weight 400mg.
Embodiment 3
Lyophilized powder prescription one
Nolatrexed dihydrochloride 10g
Mannitol 0.5g
Water for injection 200ml
Preparation method
With nolatrexed dihydrochloride 10g and 0.5g mannitol, join stirring and dissolving in the beaker that is equipped with 120ml water for injection, add and add after 0.1% activated carbon decolorizing is handled behind the water for injection standardize solution with 0.22 μ m microporous filter membrane malleation degerming, packing lyophilization.
Embodiment 4
Lyophilized powder prescription two
Nolatrexed dihydrochloride 10g
Mannitol 1g
Water for injection 200ml
Preparation method
With nolatrexed dihydrochloride 10g and 1g mannitol, join stirring and dissolving in the beaker that is equipped with 120ml water for injection, add and add after 0.1% activated carbon decolorizing is handled behind the water for injection standardize solution with 0.22 μ m microporous filter membrane malleation degerming, packing lyophilization.
Embodiment 5
Lyophilized powder prescription three
Nolatrexed dihydrochloride 10g
Mannitol 1.5g
Water for injection 200ml
Preparation method
With nolatrexed dihydrochloride 10g and 1.5g mannitol, join stirring and dissolving in the beaker that is equipped with 120ml water for injection, add and add after 0.1% activated carbon decolorizing is handled behind the water for injection standardize solution with 0.22 μ m microporous filter membrane malleation degerming, packing lyophilization.
Embodiment 6
Lipid freeze-dry powder prescription one
Nolatrexed dihydrochloride 10g
Soybean lecithin 30g
Dipalmitoyl-glycerol phospholipid (DPPG) 3g
Cholesterol 10g
Vitamin E 33mg
Citric acid 75g
Sodium citrate 61.5g
Natrium carbonicum calcinatum 45g
Mannitol 400g
Water for injection 2000ml
Preparation method
1. the phospholipid, cholesterol and the vitamin E that take by weighing in the prescription are dissolved in the chloroform of 1000ml, and chloroform is removed in decompression on Rotary Evaporators, forms lipid membrane.
2. prepare the citric acid solution (PH is 4.0) of 0.3mol/L, and come the aquation lipid membrane, get blank liposome suspension with this solution.
Aquation fully after, prepare liposome to the required particle diameter and the uniformity with high pressure homogenisers, making the liposome particle diameter is 100 ± 10mn.Add sodium carbonate liquor, the pH value to 7.5 of the liposome suspension after the adjusting aquation.
4. nolatrexed dihydrochloride is dissolved in water for injection, adds 20% mannitol after being heated to 50 ℃.Mix with liposome turbid liquor dissolving back fully, 50-60 ℃ of following jolting, stirring, insulation 15min.
5. adopt 20% mannitol to wash the liposome of nolatrexed dihydrochloride, utilize the dialysis Filtration to make the outer solution of liposome be replaced into the Liposomal dispersion of pH6-pH7 as Liposomal dispersion, the nolatrexed dihydrochloride liposome turbid liquor.
6. after the nolatrexed dihydrochloride liposome suspension being used the micro-pore-film filtration degerming, use the water for injection standardize solution, making the concentration of nolatrexed dihydrochloride is 6mg/ml, and packing gets product, and finished product can preserve under 2 ℃-8 ℃ or lyophilizing is saved to use.
Embodiment 7
Lipid freeze-dry powder prescription two
Nolatrexed dihydrochloride 10g
Soybean lecithin 30g
Dipalmitoyl-glycerol phospholipid (DPPG) 3g
Cholesterol 10g
Vitamin E 33mg
Citric acid 75g
Sodium citrate 61.5g
Natrium carbonicum calcinatum 45g
Mannitol 400g
Water for injection 2000rnl
Preparation method
1. the phospholipid, cholesterol and the vitamin E that take by weighing in the prescription are dissolved in the chloroform-methanol (volume ratio 2: 1) of 1000ml, and chloroform is removed in decompression on Rotary Evaporators, forms lipid membrane.
2. prepare the citric acid solution (PH is 4.0) of 0.3mol/L, and come the aquation lipid membrane, get blank liposome suspension with this solution.
Aquation fully after, prepare liposome to the required particle diameter and the uniformity with high pressure homogenisers, making the liposome particle diameter is 150 ± 10nm.Add sodium carbonate liquor, the pH value to 7.5 of the liposome suspension after the adjusting aquation.
4. nolatrexed dihydrochloride is dissolved in water for injection, adds 15% mannitol after being heated to 50 ℃.Mix with liposome turbid liquor dissolving back fully, 50-60 ℃ of following jolting, stirring, insulation 15min.
5. adopt 15% mannitol to wash the liposome of nolatrexed dihydrochloride, utilize the dialysis Filtration to make the outer solution of liposome be replaced into the Liposomal dispersion of pH6-pH7 as Liposomal dispersion, the nolatrexed dihydrochloride liposome turbid liquor.
6. after the nolatrexed dihydrochloride liposome suspension being used the micro-pore-film filtration degerming, use the water for injection standardize solution, making the concentration of nolatrexed dihydrochloride is 6mg/ml, and packing gets product, and finished product can preserve under 2 ℃-8 ℃ or lyophilizing is saved to use.
Embodiment 8
Lipid freeze-dry powder prescription three
Nolatrexed dihydrochloride 10g
Hydrogenated soy phosphatidyl choline 30g
Distearyl phosphoglyceride (DSPG) 6g
Cholesterol 10g
Vitamin E 20mg
Citric acid 75g
Sodium citrate 61.5g
Natrium carbonicum calcinatum 45g
Mannitol 400g
Water for injection 2000ml
Preparation method
1. the phospholipid, cholesterol and the vitamin E that take by weighing in the prescription are dissolved in the chloroform of 1000ml, and chloroform is removed in decompression on Rotary Evaporators, forms lipid membrane.
2. prepare the citric acid solution (PH is 4.0) of 0.3mol/L, and come the aquation lipid membrane, get blank liposome suspension with this solution.
Aquation fully after, prepare liposome to the required particle diameter and the uniformity with high pressure homogenisers, making the liposome particle diameter is 110 ± 20nm.Add sodium carbonate liquor, the pH value to 7.5 of the liposome suspension after the adjusting aquation.
4. nolatrexed dihydrochloride is dissolved in water for injection, adds 15% mannitol after being heated to 50 ℃.Mix with liposome turbid liquor dissolving back fully, 50-60 ℃ of following jolting, stirring, insulation 15min.
5. adopt 15% mannitol to wash the liposome of nolatrexed dihydrochloride, utilize the dialysis Filtration to make the outer solution of liposome be replaced into the Liposomal dispersion of pH6-pH7 as Liposomal dispersion, the nolatrexed dihydrochloride liposome turbid liquor.
6. after the nolatrexed dihydrochloride liposome suspension being used the micro-pore-film filtration degerming, use the water for injection standardize solution, making the concentration of nolatrexed dihydrochloride is 6mg/ml, and packing gets product, and finished product can preserve under 2 ℃-8 ℃ or lyophilizing is saved to use.
Effect embodiment 1
Different auxiliary material nolatrexed dihydrochloride freeze-dried powder character is compared, and the result is as follows:
Table 1 different auxiliary material nolatrexed dihydrochloride freeze-dried powder character relatively
| Adjuvant | Outward appearance | Dissolubility | Clarity |
| No adjuvant trehalose mannitol glucose | Little yellow pie, outward appearance is not good enough off-white color pie, the general off-white color pie of outward appearance, the excellent off-white color pie of outward appearance, outward appearance is excellent | Dissolving dissolving in about 25 seconds dissolving in about 12 seconds dissolving in about 18 seconds about 2 minutes | 2-3 3-4 2-3 3-4 |
Effect embodiment 2
Pharmacodynamic parameter to nolatrexed dihydrochloride freeze-dried powder and liposome in lotus S180 solid tumor mice compares
Experimental technique: the administration of lotus S180 solid tumor mouse tail vein injection, dosage is 80mg/kg, adopts the HPLC ultraviolet detection method to measure the concentration of nolatrexed dihydrochloride in biological sample.The result is as shown in table 2.
The pharmacodynamic parameter of table 2 nolatrexed dihydrochloride freeze-dried powder and liposome relatively
| Comparative parameter | The nolatrexed dihydrochloride freeze-dried powder | The nolatrexed dihydrochloride liposome |
| Eliminate half-life (t1/2 β) serum drug level (ug/ml) 12 hours tumor tissues drug concentrations (ug/ml) of 1 hour 12 hours 1 hour 12 hours 1 hour tumor tissues drug concentration (ug/ml) of renal drug concentration (ug/ml) of renal drug concentration (ug/ml) of liver concentration (ug/ml) of liver concentration (ug/ml) of serum drug level (ug/ml) after 12 hours after 1 hour | 2.25 hours 40.3 hours 7.8 hours 74.3 hours 10.2 hours 102.6 hours 12.3 hours 18.6 hours 5.6 hours | 5.30 hours 32.1 hours 20.3 hours 88.9 hours 45.6 hours 90.2 hours 35.6 hours 39.3 hours 15.8 hours |
The result shows that the nolatrexed dihydrochloride liposome has prolonged the time that medicine keeps in vivo, the concentration of medicine in liver and tumor tissues is increased, thereby improved therapeutic index.
Claims (6)
1. the liposome composition of a nolatrexed dihydrochloride, it contains the nolatrexed dihydrochloride of 10-20 weight portion, the soybean lecithin of 20-40 weight portion, the dipalmitoyl-glycerol phospholipid of 2-5 weight portion and the cholesterol of 5-20 weight portion.
2. according to the compositions of claim 1, it contains the nolatrexed dihydrochloride of 10-20 weight portion, the soybean lecithin of 20-40 weight portion, the dipalmitoyl-glycerol phospholipid of 2-5 weight portion, the cholesterol of 5-20 weight portion, the vitamin E of 0.02-0.045 weight portion, the citric acid of 30-100 weight portion, the sodium citrate of 30-100 weight portion, the mannitol of the natrium carbonicum calcinatum of 40-180 weight portion and 300-1000 weight portion.
3. according to the compositions of claim 1, wherein said liposome is freeze dried form.
4. the preparation method of the liposome composition of claim 2 may further comprise the steps:
1) phospholipid, cholesterol and vitamin E are dissolved in chloroform or the chloroform-methanol mixed solvent, organic solvent is removed in decompression, forms lipid membrane;
2) with lipid membrane aquation in citric acid solution, obtain the blank liposome suspension;
3) be controlled between the 50-300nm with the particle diameter of high pressure homogenisers, regulate pH value to 7.1-7.8 with liposome;
4) nolatrexed dihydrochloride is dissolved in water for injection, adds mannitol, mix with liposome turbid liquor, 50-60 ℃ of following jolting;
5) adopt Liposomal dispersion to wash the liposome of nolatrexed dihydrochloride, utilize the dialysis Filtration to make the outer solution of liposome be replaced into the Liposomal dispersion of pH5-7, get the nolatrexed dihydrochloride liposome turbid liquor;
6) use the micro-pore-film filtration degerming;
7) randomly with the liposome solutions lyophilizing.
5. capsule preparations comprises among the claim 1-3 any one liposome composition.
6. freeze-dried powder comprises among the claim 1-3 any one liposome composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200510085527XA CN100348194C (en) | 2005-07-26 | 2005-07-26 | Lipid formulation of nolatrexed dihydrochloride and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200510085527XA CN100348194C (en) | 2005-07-26 | 2005-07-26 | Lipid formulation of nolatrexed dihydrochloride and its preparation method |
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| CN100348194C true CN100348194C (en) | 2007-11-14 |
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| CN104140416B (en) * | 2013-05-10 | 2016-08-10 | 北京康辰药业股份有限公司 | A kind of nolatrexed dihydrochloride crystal formation and preparation method and application |
| CN105232476B (en) * | 2014-06-06 | 2018-03-09 | 北京康辰药业股份有限公司 | The preparation method of nolatrexed dihydrochloride freeze drying powder injection |
| CN115252554B (en) * | 2021-05-01 | 2023-08-25 | 杭州星鳌生物科技有限公司 | Preparation, composition and application of novel 4 (3H) -quinazolinone analogue/cyclic dinucleotide cGAMP co-carrier liposome in antitumor drugs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446079A (en) * | 2000-06-30 | 2003-10-01 | 英耐克斯药品股份有限公司 | Liposomal antineoplastic drugs and uses thereof |
| CN1446080A (en) * | 2000-06-09 | 2003-10-01 | Osi药物公司 | Liposomal benzoquinazoline thymidylate synthase inhibitor formulations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446080A (en) * | 2000-06-09 | 2003-10-01 | Osi药物公司 | Liposomal benzoquinazoline thymidylate synthase inhibitor formulations |
| CN1446079A (en) * | 2000-06-30 | 2003-10-01 | 英耐克斯药品股份有限公司 | Liposomal antineoplastic drugs and uses thereof |
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