AAPS PharmSciTech最新文献

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The Comparison between Pilot-Grade Spray Dryer and Laboratory-Grade Spray Dryer: Structure, Powder Properties and Application for Direct Compaction 中试级喷雾干燥机与实验室级喷雾干燥机的比较:结构、粉末特性和直接压制应用
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-27 DOI: 10.1208/s12249-024-02991-8
Zhe Li, Wanghai Peng, Fucai Chen, Lin Zhu, Abid Naeem, Weifeng Zhu, Yongmei Guan, Yi Feng, Yanni Wu, Xiao Lin, Liangshan Ming
{"title":"The Comparison between Pilot-Grade Spray Dryer and Laboratory-Grade Spray Dryer: Structure, Powder Properties and Application for Direct Compaction","authors":"Zhe Li,&nbsp;Wanghai Peng,&nbsp;Fucai Chen,&nbsp;Lin Zhu,&nbsp;Abid Naeem,&nbsp;Weifeng Zhu,&nbsp;Yongmei Guan,&nbsp;Yi Feng,&nbsp;Yanni Wu,&nbsp;Xiao Lin,&nbsp;Liangshan Ming","doi":"10.1208/s12249-024-02991-8","DOIUrl":"10.1208/s12249-024-02991-8","url":null,"abstract":"<div><p>This study investigates the improvements in direct compaction powder properties achieved through particle design using laboratory and pilot-scale spray dryers. Hydroxypropyl methylcellulose and polyvinylpyrrolidone were used as modifying agent, which have low hygroscopicity and surface tension, good flowability, and excellent compactibility. Ammonium bicarbonate and sodium bicarbonate were used as pore-forming agents, and the composite particles were prepared using laboratory and pilot-scale spray dryers. The results showed that the structure of the composite particles and porous particles can effectively improve the flowability, tabletability, and disintegration behaviour; the composite particles prepared by laboratory-scale spray drying have better tabletability; the composite particles prepared by spray drying at pilot-scale had better flowability. In summary, there are significant differences in the properties of products prepared by different scales of spray drying. It will be beneficial to choose the appropriate equipment and the appropriate experimental design. Consequently, this study may contribute to the development of natural plant tablets.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
User-Friendliness Evaluation of Handling pMDI with Various Add-on Devices in Asthmatic Patients 对哮喘患者使用 pMDI 和各种附加设备的便利性进行评估。
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-27 DOI: 10.1208/s12249-024-02998-1
Ahmed M. Abdelfattah, Rania M. Sarhan, Yasmin M. Madney, Ahmed F. Mady, Mohamed E. A. Abdelrahim, Hadeer S. Harb
{"title":"User-Friendliness Evaluation of Handling pMDI with Various Add-on Devices in Asthmatic Patients","authors":"Ahmed M. Abdelfattah,&nbsp;Rania M. Sarhan,&nbsp;Yasmin M. Madney,&nbsp;Ahmed F. Mady,&nbsp;Mohamed E. A. Abdelrahim,&nbsp;Hadeer S. Harb","doi":"10.1208/s12249-024-02998-1","DOIUrl":"10.1208/s12249-024-02998-1","url":null,"abstract":"<div><p>The objective of this study was to assess the use of pMDI alone and pMDI with different spacers in asthmatic patients and to identify any associations between errors in handling the device for the first time and the sessions needed to reach the correct handling method, considering patient demographics and clinical characteristics. A total of 150 Asthmatic patients were crossed over to handle pMDI alone and with add-on inhalable devices (Aerochamber plus, Tips Haler, Able, Dispozable and Aer-8) randomly, without receiving verbal or demonstrative instruction (baseline assessment). The assessment of the inhaler technique was performed using checklists that had been set beforehand. Subsequently, the proper utilization of the inhaler was exhibited, and the patient's inhaler usage was reassessed. The demonstration was repeated until an optimal technique was attained. The number of counselling attempts required to achieve successful management, together with patient demographics and clinical factors, were documented. The mean percentage of total errors at baseline shows that pMDI alone is significantly higher than pMDI attached to add-on devices (53.90 ± 9.71, 32.54 ± 13.93, 24.53 ± 14.93, 21.6 ± 14.48, 25.14 ± 10.99, 27.47 ± 10.28) for pMDI alone, Aerochamber plus, Tips Haler, Able, Dispozable and Aer-8 respectively at <i>p</i> &lt; 0.01. Able and Tips Haler spacers are significantly lower than other spacers with pMDI and pMDI alone in terms of total sessions needed to attain the complete optimal handling technique at p &lt; 0.01. Weak and very weak correlations were observed between the percentage of total errors at baseline and the total sessions with education years, Montreal Cognitive Assessment, and age as well as some demographics and clinical variables. Handling pMDI can be challenging however the introduction of spacers simplifies this procedure. Different spacers cannot be treated as a homogeneous group due to variations in handling techniques and ease of use. the Able spacer requires the fewest handling steps of any spacer and has the highest percentage of patients who can use it without assistance.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1208/s12249-024-02998-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-Circulating and Targeted Liposomes Co-loading Cisplatin and Mifamurtide: Formulation and Delivery in Osteosarcoma Cells 长循环和靶向脂质体共载顺铂和米伐肽:骨肉瘤细胞中的配制和递送
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-26 DOI: 10.1208/s12249-024-02992-7
Bo Li, Qianhui Zhao, Hanyu Yang, Xueyuying Wang, Zhijun Zhang, Yanling Gong, Xu Wan
{"title":"Long-Circulating and Targeted Liposomes Co-loading Cisplatin and Mifamurtide: Formulation and Delivery in Osteosarcoma Cells","authors":"Bo Li,&nbsp;Qianhui Zhao,&nbsp;Hanyu Yang,&nbsp;Xueyuying Wang,&nbsp;Zhijun Zhang,&nbsp;Yanling Gong,&nbsp;Xu Wan","doi":"10.1208/s12249-024-02992-7","DOIUrl":"10.1208/s12249-024-02992-7","url":null,"abstract":"<div><p>Osteosarcoma (OS) is one of the most common primary bone sarcoma with high malignant degree and poor prognosis, for which there is an urgent need to develop novel therapeutic approaches. Recent research has revealed that mifamurtide significantly improved the outcome of OS patients when combined with adjuvant chemotherapy drugs including cisplatin (DDP). The present study aimed to construct a drug delivery system co-loading DDP and mifamurtide. Long-circulating targeted liposomes co-loading DDP and mifamurtide were constructed with Soy lecithin (SPC), cholesterol (Chol) and 1,2-distearoylglycero-3-phosphoethanolamine-n-[poly(ethyleneglycol)] (DSPE-PEG), modified with MMP14 targeting peptide BCY-B in the surface of liposomes. In addition to characterization, the cellular uptake, endocytosis pathway and inhibition on cell viability, migration, invasion and cell apoptosis of MG-63 cells were explored. The constructed liposomal delivery possessed the basic characteristics of liposomes and showed high affinity to MG-63 cells, resulting in high uptake efficiency in MG-63 cells. The endocytosis might be involved in multiple pathways including caveolae-mediated endocytosis, clathrin-mediated endocytosis and macropinocytosis, dependently on energy. The constructed long-circulating targeted liposomes co-loading DDP and mifamurtide significantly inhibited the cell viability, migration, invasion and cell apoptosis of MG-63 cells, improving the antitumor effect of DDP and mifamurtide <i>in vitro</i>. The constructed liposomal delivery system is suitable for co-loading DDP and mifamurtide to achieve active tumor targeting, supplying a new strategy for the treatment of OS.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1208/s12249-024-02992-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Albumin and Polysorbate-80 Coated Sterile Nanosuspensions of Mebendazole for Glioblastoma Therapy 用于胶质母细胞瘤治疗的白蛋白和聚山梨醇酯-80 包裹的甲苯咪唑无菌纳米悬液
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-26 DOI: 10.1208/s12249-024-02978-5
Himaxi Patel, Akanksha Patel, Mukti Vats, Ketan Patel
{"title":"Albumin and Polysorbate-80 Coated Sterile Nanosuspensions of Mebendazole for Glioblastoma Therapy","authors":"Himaxi Patel,&nbsp;Akanksha Patel,&nbsp;Mukti Vats,&nbsp;Ketan Patel","doi":"10.1208/s12249-024-02978-5","DOIUrl":"10.1208/s12249-024-02978-5","url":null,"abstract":"<div><p>The scarcity of existing and novel therapies for brain cancer has significantly affected the survival rate of glioblastoma patients. Mebendazole (MBZ), an antiparasitic agent demonstrated promising activity against brain cancer. However, poor solubility, multiple polymorphs, and insufficient permeability through blood–brain barrier (BBB) restricts its therapeutic efficacy through parenteral administration. The current study aimed to develop, optimize, and characterize sterile, injectable nanosuspension of mebendazole using parenterally acceptable stabilizers. Albumin and polysorbate 80 (PS-80) coated MBZ Nanosuspension (NS) was prepared using wet media milling technique. Design of experiment (DoE) approach was used to understand effect of drug loading versus stabilizer concentration. The optimized MBZ NS showed hydrodynamic diameter of 208.36 ± 0.24 nm with a poly dispersibility index (PDI) of 0.210 ± 0.03 and zeta potential of -20.41 ± 0.36 mV. The IC<sub>50</sub> value of MBZ NS in U-87 MG and LN-229 cell lines were found to be 0.49 ± 0.02 μM and 0.48 ± 0.05 μM, respectively. Additionally, MBZ NS demonstrated a 2.65-fold decrease in colony-forming efficiency and a 1.16-fold reduction in migration of the bridging area compared to MBZ. In 3D spheroids of the U-87 MG glioma cell line, MBZ NS exhibited a 50% reduction in tumor growth and increased cell apoptosis compared to the control. MBZ NS formulations were sterilized by gamma irradiation and tested as per the USP sterility test. Albumin-PS 80 coated NS is rendered to be useful parenteral delivery of mebendazole for the treatment of brain cancer.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancements in Antiviral Therapy: Favipiravir Sodium in Nasal Formulation 抗病毒疗法的进展:鼻用制剂法维拉韦钠
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-26 DOI: 10.1208/s12249-024-02986-5
Priti Darne, Shankar Vidhate, Somesh Shintre, Somnath Wagdare, Dhiraj Bhamare, Nisha Mehta, Vishal Rajagopalan, Sriram Padmanabhan
{"title":"Advancements in Antiviral Therapy: Favipiravir Sodium in Nasal Formulation","authors":"Priti Darne,&nbsp;Shankar Vidhate,&nbsp;Somesh Shintre,&nbsp;Somnath Wagdare,&nbsp;Dhiraj Bhamare,&nbsp;Nisha Mehta,&nbsp;Vishal Rajagopalan,&nbsp;Sriram Padmanabhan","doi":"10.1208/s12249-024-02986-5","DOIUrl":"10.1208/s12249-024-02986-5","url":null,"abstract":"<div><p>Favipiravir (FPV) is an Active Pharmaceutical Ingredient (API) known to have lower solubility in aqueous solvents. In the current study, efforts were made to generate a crystalline Favipiravir Sodium Salt (NaFPV) for enhanced solubility in aqueous media. The in-house generated NaFPV was characterized by NMR studies and its sodium content was determined by Flame Emission Spectroscopy (FES) as a confirmation of salt formation. Its solubility was determined where-in the solubility of NaFPV in water was about 100 times greater than FVP. FPV and NaFPV nasal spray formulations were prepared and its activity was determined against human coronavirus (hCoV) 229E strain. In the anti-hCoV assay as compared to FPV, NaFPV showed almost threefold higher anti-viral activity than its unmodified counterpart. Accelerated stability and spray pattern characteristics of both the formulations were studied. Interestingly, NaFPV showed higher physical stability during storage at conditions 40 ± 2 °C/ 75% ± 5% RH. The nasal spray formulations of both FPV and NaFPV showed ideal plume geometry and spray pattern of acceptable specifications. Due to its improvement in terms of solubility, NaFPV will have higher rate and extent of absorption, and faster onset of the therapeutic effect and may appear to be a feasible alternative to regular favipiravir for use in solid dosage forms.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Role of Amphiphilic Compounds in Nasal Nanoparticles 两亲化合物在鼻腔纳米颗粒中的作用
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-19 DOI: 10.1208/s12249-024-03000-8
Thinh To Quoc, Krisztina Bíró, Ágota Pető, Dóra Kósa, Ádám Haimhoffer, István Lekli, Ádám Pallér, István Bak, Alexandra Gyöngyösi, Pálma Fehér, Ildikó Bácskay, Zoltán Ujhelyi
{"title":"The Role of Amphiphilic Compounds in Nasal Nanoparticles","authors":"Thinh To Quoc,&nbsp;Krisztina Bíró,&nbsp;Ágota Pető,&nbsp;Dóra Kósa,&nbsp;Ádám Haimhoffer,&nbsp;István Lekli,&nbsp;Ádám Pallér,&nbsp;István Bak,&nbsp;Alexandra Gyöngyösi,&nbsp;Pálma Fehér,&nbsp;Ildikó Bácskay,&nbsp;Zoltán Ujhelyi","doi":"10.1208/s12249-024-03000-8","DOIUrl":"10.1208/s12249-024-03000-8","url":null,"abstract":"<div><p>Nasal medications hold significant importance and are widely utilized due to their numerous advantageous properties, offering a compelling route for both local and systemic therapeutic effects. Nowadays, the development of nasal particles under 1 micrometer is in the focus of much scientific research. In our experiments, the use of innovative nanotechnology to increase the effectiveness of the active substance was of paramount importance. Our aim was to create solid nanoparticles that enable targeted and effective delivery of the active ingredient into the body. The innovation of this experimental series lies not only in highlighting the importance of amphiphilic compounds in enhancing penetration, but also in the fact that while most nasally administered formulations are in liquid form, our formulation is solid. Liquid formulations frequently suffer from the disadvantage of possible leakage during administration, which can reduce the bioavailability of the active ingredient. In our experiments we created novel drug delivery systems of finely divided powders, which, thanks to the penetration enhancers, can be successfully administered. These enhancers facilitate the swift disintegration and penetration of the particles through the membrane. This represents a new direction in nasal drug delivery methods. The results of our trials are promising in the development of innovative pharmaceutical products and outline the role of amphiphilic compounds in more efficient utilization and targeted application of active substances. According to our results it can be concluded that this innovative approach not only addresses the common issues associated with liquid nasal formulations but also paves the way for more stable and effective delivery methods. The use of finely divided powders for nasal delivery, enabled by penetration enhancers, represents a major breakthrough in the field, providing a dependable alternative to conventional liquid formulations and ensuring improved therapeutic results.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1208/s12249-024-03000-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predicting the Thermodynamic Solubility and Stability of Co-crystals and Eutectics of Febuxostat by using a Thermodynamic Model involving Flory Huggins Interaction Parameter 利用涉及弗洛里-赫金斯相互作用参数的热力学模型预测非布索坦共晶体和共晶的热力学溶解度和稳定性
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-19 DOI: 10.1208/s12249-024-02979-4
Moksh Jagia, Arvind K. Bansal, Sarsvatkumar Patel
{"title":"Predicting the Thermodynamic Solubility and Stability of Co-crystals and Eutectics of Febuxostat by using a Thermodynamic Model involving Flory Huggins Interaction Parameter","authors":"Moksh Jagia,&nbsp;Arvind K. Bansal,&nbsp;Sarsvatkumar Patel","doi":"10.1208/s12249-024-02979-4","DOIUrl":"10.1208/s12249-024-02979-4","url":null,"abstract":"<div><p>A method is presented for determining the thermodynamic (equilibrium) solubility of a drug in coformer for the non-covalent derivative (NCD) systems i.e. eutectics/co-crystals. The method is based on a thermodynamic model to calculate the Gibbs energy change ∆<i>G</i><sub>CC</sub> associated with forming a drug-coformer NCD system. This model includes contributions from heat capacity differences between the mixed and unmixed components, breaking up of the solid drug and coformer lattice structure, and drug ─ coformer mixing. Calculation of ∆<i>G</i><sub>CC</sub> from thermal analysis data is demonstrated, and the equilibrium drug solubility in coformer is represented by minima of plots of ∆<i>G</i><sub>CC</sub> versus the dissolved drug fraction (f<sub>1</sub>). Eight (8) coformer molecules, namely, 1-hydroxy 2-naphthoic acid (1H-2NPH), 4-hydroxy benzoic acid (4-HBA), salicylic acid (SLC), 4-amino salicylic acid (4-ASA), 5-nitro isophthalic acid (5N-IPH), pyrazinamide (PZD), isonicotinamide (ISNCT), and picolinamide (PICO) were used for the formation of NCDs of a highly water insoluble drug febuxostat (FXT). The importance of heat capacity and interaction parameter in determining the solubility behavior of drug-coformer in the formed NCDs was discussed. Further, ∆<i>G</i><sub>CC</sub> for FXT in selected NCDs were plotted as a function of composition and temperature to determine the thermodynamic stability over the range of room temperature to formulation melting. It was concluded that the thermodynamic model can reasonably predict the maximum stable drug loading in a multi-crystalline system at a particular temperature, and serve as a complementary screening tool in determining the best stoichiometric ratio of the drug and coformer in terms of solubility and thermodynamic stability.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Role of Phase Separation and Local Mobility in the Stabilization of a Lyophilized IgG2 Formulation 相分离和局部流动性在稳定冻干 IgG2 制剂中的作用
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-19 DOI: 10.1208/s12249-024-02984-7
Ashley Lay-Fortenbery, Ryan E. Holcomb, Charles S. Henry, Mark Cornell Manning, Eric J. Munson
{"title":"The Role of Phase Separation and Local Mobility in the Stabilization of a Lyophilized IgG2 Formulation","authors":"Ashley Lay-Fortenbery,&nbsp;Ryan E. Holcomb,&nbsp;Charles S. Henry,&nbsp;Mark Cornell Manning,&nbsp;Eric J. Munson","doi":"10.1208/s12249-024-02984-7","DOIUrl":"10.1208/s12249-024-02984-7","url":null,"abstract":"<div><p>The utility of employing solid-state NMR (SSNMR) to assess parameters governing the stability of a lyophilized IgG2 protein was the focus of the present work. Specifically, the interaction between the sugar stabilizer (sucrose) and protein component was measured using SSNMR and compared to physical and chemical stability data obtained from thermally stressed samples. <sup>1</sup>H T<sub>1</sub> and <sup>1</sup>H T<sub>1⍴</sub> relaxation times were measured by SSMNR for 5 different formulation conditions, and the resultant values were used to examine local mobility and phase separation, respectively. From the SSNMR measurements, it was found local mobility decreased as the sucrose to protein weight ratio increased. The decrease in local mobility corresponded to an increase in storage stability (both chemical and physical) of the lyophilized solids up to a critical weight ratio of sucrose to protein. Additionally, <sup>1</sup>H T<sub>1⍴</sub> measurements obtained on formulations having higher protein to sucrose weight ratios indicated phase separation of the protein and sucrose phases was occurring, at least on a small scale. Along with an increase in local mobility, phase separation in these specific formulations is thought to have played a role in their decreased storage stability in the solid state.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Croscarmellose Sodium as Pelletization Aid in Extrusion-Spheronization 更正:在挤压-乳化过程中作为造粒助剂的卡司卡莫司钠
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-12 DOI: 10.1208/s12249-024-02989-2
Finn Siebel, Peter Kleinebudde
{"title":"Correction: Croscarmellose Sodium as Pelletization Aid in Extrusion-Spheronization","authors":"Finn Siebel,&nbsp;Peter Kleinebudde","doi":"10.1208/s12249-024-02989-2","DOIUrl":"10.1208/s12249-024-02989-2","url":null,"abstract":"","PeriodicalId":6925,"journal":{"name":"AAPS PharmSciTech","volume":"25 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1208/s12249-024-02989-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chitosan-Based Nanoformulations: Preclinical Investigations, Theranostic Advancements, and Clinical Trial Prospects for Targeting Diverse Pathologies 壳聚糖基纳米制剂:针对不同病症的临床前研究、治疗学进展和临床试验前景。
IF 3.4 4区 医学
AAPS PharmSciTech Pub Date : 2024-11-05 DOI: 10.1208/s12249-024-02948-x
Seema Yadav, Abhishek Singh, Narahari N. Palei, Prateek Pathak, Amita Verma, Jagat Pal Yadav
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