Self-Emulsifying Tablet for the Improved Dissolution of Enzalutamide
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 박영준 | - |
dc.contributor.author | 허연지 | - |
dc.date.accessioned | 2025-01-25T01:36:11Z | - |
dc.date.available | 2025-01-25T01:36:11Z | - |
dc.date.issued | 2023-02 | - |
dc.identifier.other | 32763 | - |
dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/24715 | - |
dc.description | 학위논문(석사)--아주대학교 일반대학원 :약학과,2023. 2 | - |
dc.description.abstract | 새로 발견된 제약 성분들 중에는, 물에 용해되지않는 난용성 약물이 약 90%를 차지하고 있다. 따라서 약물의 용해도를 개선하기위해 다양한 가용화 시스템 연구가 진행되었다. 약물의 특성에 따라 가용화 시스템을 적용하여 생체이용률을 높힐 수 있다. 본 연구의 목적은 가용화 시스템으로 자가유화에멀젼 약물전달시스템을 이용하여 약물의 용해성을 개선시키고, 다양한 제형을 확보하기위해 다공성 실리카와 혼합하여 고형화된 제제를 개발하는 것이다. <br>기초 제형연구로, Enzalutamide 의 물리화학적 특성평가를 수행하였고, ternary phase 연구를 통해 가용화 시스템인 sme 조성물을 선정하였다. 그 결과로, 후보물질의 물리화학적 성질을 규명하였고, 오일로 Capryol 90 30%, 계면활성제로 KolliphorEL 35% , 공계면활성제로 Transcutol HP 35%의 조성물을 가지는 SME 를 설정하였다. 설계된 SME 를 물에 분산시켜입자크기측정기로 입자크기를 측정하였으며 약 46.5 nm 의 입자를형성함을 확인하였다. <br>제형 연구에서는, 액상의 SMEDDS 제형 연구로 약물과 SME 의비율을 1:20, 1:10, 1:6.7, 1:5 로 설계하고, 입자크기와 용출평가를 진행하였다. 그 결과 약물과 SME 가 1: 20, 1:10 일 때 , pH1.2 용출액에서의 용출률이 기존약물대비 각 27.6 배, 22.3 배 개선된 결과를 얻었다. <br>Liquid- SMEDDS 제형을 토대로, 제형적 다양성을 확보하고 침전 발생을 억제하는 효과를 얻기위해 다공성 실리카를 이용하여 고형화된SMEDDS 선정 연구를 진행하였다. SME 와 실리카의 비율을 1:1.5, 1:1, 1.5:1 로 설계하였고, 표면흡착법으로 제조하였다. 엔잘루타마이드를 포함하는 SME 조성물과 분말형태인 Neusilin 이 1.5: 1 로 구성된 제형을 선정한 뒤, pH 1.2 용출액조건에서 약 14.3 배 개선된 용출률을 확보하였다. <br>그 후 고형화된 SME 와 부형제와의 혼합법을 통해 SME 정제를 제조하였으며, 이는 고형화된 SME 분말보다 높은 용출률을 달성하였다. <br>결론적으로 난용성 약물인 엔잘루타마이드를 포함하는 Neusilin 기반의 고형화된 SMEDDS 제제를 통해 용해도가 개선된 고형 제제를 얻을 수 있었다. | - |
dc.description.tableofcontents | 1. Introduction 1 <br>2. Materials and Methods 7 <br> 2.1 Materials 7 <br> 2.2 Solubility Test 8 <br> 2.3 Pseudo-Ternary Phase Diagram 8 <br> 2.4 Preparation of Liquid-SMEDDS 8 <br> 2.5 Preparation of Solidified-SMEDDS 9 <br> 2.6 Preparation of Self-emulsifying tablet 10 <br> 2.7 Characterization of ENZ and Formulation 16 <br> 2.7.1 Morphology 16 <br> 2.7.2 Differential Scanning Calorimetry (DSC) 16 <br> 2.7.3 Particle Size Distribution (PSD) 17 <br> 2.7.4 Dynamic Light Scattering (DLS) 17 <br> 2.7.5 Flowability 17 <br> 2.8 In vitro dissolution studies 18 <br> 2.9 Ultra-violet (UV) Analysis 18 <br>3. Result and Discussion 19 <br> 3.1 Screening of SMEDDS Components 19 <br> 3.2 Pseudo-Ternary Phase Diagram 21 <br> 3.3 Characterization of Formulation 23 <br> 3.3.1 Morphology 23 <br> 3.3.2 Differential Scanning Calorimetry (DSC) 23 <br> 3.3.3 Particle Size Distribution (PSD) 23 <br> 3.3.4 Dynamic Light Scattering (DLS) 27 <br> 3.3.5 Flowability 30 <br> 3.3.6 UV-vis spectrum 30 <br> 3.4 In vitro dissolution studies of L-SMEDDS 33 <br> 3.5 In vitro dissolution studies of S-SMEDDS 36 <br> 3.6 Evaluation of for formulation of SME tablet 38 <br> 3.7 In vitro dissolution studies of SME tablet 38 <br> 3.8 Redispersion particle size in dissolution media 41 <br>4. Conclusions 44 <br>5. Reference 46 | - |
dc.language.iso | eng | - |
dc.publisher | The Graduate School, Ajou University | - |
dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
dc.title | Self-Emulsifying Tablet for the Improved Dissolution of Enzalutamide | - |
dc.type | Thesis | - |
dc.contributor.affiliation | 아주대학교 대학원 | - |
dc.contributor.alternativeName | Yeon-Ji Hur | - |
dc.contributor.department | 일반대학원 약학과 | - |
dc.date.awarded | 2023-02 | - |
dc.description.degree | Master | - |
dc.identifier.localId | T000000032763 | - |
dc.identifier.url | https://dcoll.ajou.ac.kr/dcollection/common/orgView/000000032763 | - |
dc.subject.keyword | enzalutamide | - |
dc.subject.keyword | lipid-based drug delivery system | - |
dc.subject.keyword | lipid-self microemulsion | - |
dc.subject.keyword | mesoporous silica | - |
dc.subject.keyword | solidified-self microemulsion | - |
dc.subject.keyword | solubility | - |
dc.description.alternativeAbstract | The purpose of this study is to improve the solubility of the drug by using a self-emulsifying emulsion drug delivery system as a solubilization system and to develop a solidified formulation by mixing with porous silica to secure various formulations. <br> As a preformulation study, the physicochemical characteristics of enzalutamide were evaluated, and a solubilization system, SME composition, was selected through a ternary phase study. As a result, the physicochemical properties of the candidate materials were investigated, and SME with a composition of 30% Capryol 90 (oil), 35% KolliporEL (surfactant), and 35% Transcutol HP (co-surfactant) was set up. The particle size was measured using a particle size analyzer(DLS) by dispersing the designed SME in water, and the result of about 46.5 nm was confirmed. <br>In the formulation study, as a Liquid-SMEDDS formulation study, the ratio of drugs to SMEs was designed at 1:20, 1:10, 1:6.7, and 1:5, and particle size and dissolution evaluation were conducted. As a result, when the drug and SME were 1:20 and 1:10, the dissolution rate in the pH 1.2 dissolution test was improved by 27.6 times and 22.3 times, respectively, compared to the enzalutamide powder. <br> Based on the Liquid-SMEDDS formulation, a Solid-SMEDDS study was conducted using porous silica to obtain formulation diversity and the effect of inhibiting precipitation. The ratio of SME to silica was designed to be 1:1.5, 1:1, and 1.5:1, and was prepared by surface adsorption. After selecting a formulation consisting of 1.5:1 of SME composition containing enzalutamide and Neusilin in powder form, the dissolution rate was improved by about 14.3 times under pH 1.2 buffer solution conditions. <br>Then, SME Tablet was prepared by mixing the solidified SME with the excipient, which achieved a higher dissolution rate than the solidified SME powder. <br>In conclusion, a solid formulation with improved solubility was obtained using a Neusilin SME formulation containing enzalutamide, a poorly soluble drug. | - |
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