1
|
Emam MF, El-Ashmawy AA, Mursi NM, Emara LH. Optimization of Meloxicam Solid Dispersion Formulations for Dissolution Enhancement and Storage Stability Using 3 3 Full Factorial Design Based on Response Surface Methodology. AAPS PharmSciTech 2022; 23:248. [PMID: 36056201 DOI: 10.1208/s12249-022-02394-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/09/2022] [Indexed: 11/30/2022] Open
Abstract
This study aimed to formulate and optimize solid-dispersion of meloxicam (MX) employing response-surface-methodology (RSM). RSM allowed identification of the main effects and interactions between studied factors on MX dissolution and acceleration of the optimization process. 33 full factorial design with 27 different formulations was proposed. Effects of drug loading percentage (A), carriers' ratio (B), method of preparation (C), and their interactions on percent MX dissolved after 10 and 30 min (Q10min & Q30min) from fresh and stored samples were studied in distilled water. The considered levels were 2.5%, 5.0%, and 7.5% (factor A), three ratios of Soluplus®/Poloxamer-407 (factor B). Physical mixture (PM), fusion method (FM), and hot-melt-extrusion (HME) were considered factor (C). Stability studies were carried out for 3 months under stress conditions. The proposed optimization design was validated by 3-extra checkpoints formulations. The optimized formulation was selected via numerical optimization and investigated by DSC, XRD, PLM, and in vitro dissolution study. Results showed that HME technique gave the highest MX dissolution rate compared to other techniques (FM & PM). At constant level of factor (C), the amount of MX dissolved increased by decreasing MX loading and increasing Soluplus in carriers' ratio. Actual responses of the optimized formulation were in close consistency with predicted data. Amorphous form of MX in the optimized formulation was proved by DSC, XRD, and PLM. Selected factors and their levels of the optimization design were significantly valuable for demonstrating and adapting the expected formulation characteristics for rapid dissolution of MX (Q10min= 89.09%) from fresh and stored samples.
Collapse
Affiliation(s)
- Maha F Emam
- Industrial Pharmacy Laboratory, Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (Affiliation ID: 10014618), 33 EL Bohouth St. (former EL Tahrir St.), Dokki, P.O.12622, Giza, Egypt.
| | - Ahmed A El-Ashmawy
- Industrial Pharmacy Laboratory, Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (Affiliation ID: 10014618), 33 EL Bohouth St. (former EL Tahrir St.), Dokki, P.O.12622, Giza, Egypt
| | - Nadia M Mursi
- Department of Pharmaceutics, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Laila H Emara
- Industrial Pharmacy Laboratory, Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (Affiliation ID: 10014618), 33 EL Bohouth St. (former EL Tahrir St.), Dokki, P.O.12622, Giza, Egypt
| |
Collapse
|
2
|
Emam MF, Taha NF, Mursi NM, Emara LH. Preparation, characterization and in-Vitro/in-Vivo evaluation of meloxicam extruded pellets with enhanced bioavailability and stability. Drug Dev Ind Pharm 2020; 47:163-175. [PMID: 33297790 DOI: 10.1080/03639045.2020.1862175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The present study involved enhancement of Meloxicam (MX) oral absorption for rapid onset of therapeutic action. A challenging approach using hot-melt-extrusion technique (HME) for production of stable novel preparation of MX pellets was successfully proposed. METHODS Manipulating HME processing parameters (barrel-temperatures and screw-speed) and proper polymer(s) selection (Soluplus, a combination of Soluplus/Poloxamar and Polyethylene Glycol 6000) were the main strategies involved for productive extrusion of MX. Evaluation of MX solid-state (TGA, DSC and PLM), absolute percent crystallinity, in-vitro dissolution (in acidic/aqueous pHs), and stability testing in accelerated conditions up to 6-months as well as a long-term shelf for 36-months were performed. A comparative bioavailability study of selected MX-Pellets was carried-out against the innovator product (Mobic®) in 6 healthy volunteers under fed-conditions. RESULTS TGA, DSC and PLM analyses proved the dispersion of MX in amorphous-state within polymeric matrix by HME. MX/Soluplus pellets exhibited the lowest crystallinity % and best dissolution performance among other polymers in both pHs. In addition, presence of Soluplus safeguards final pellets stability under different storage conditions. MX rate of absorption (Tmax) from Soluplus-based pellets attained a value of 45 min, which was 6-times faster than Mobic® (4.5 hr). CONCLUSION A promising oral MX formula prepared by HME was successfully developed with a rapid onset of analgesic action (Tmax of 45 mins; almost 2-times faster than reported intramuscular injection), hence appropriate in the early relief of pain associated with rheumatoid arthritis and osteoarthritis. Moreover, the proposed formula was physico-chemically stable up to 36 months of shelf-life storage.
Collapse
Affiliation(s)
- Maha F Emam
- Industrial Pharmacy Laboratory, Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| | - Nesrin F Taha
- Industrial Pharmacy Laboratory, Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| | - Nadia M Mursi
- Department of Pharmaceutics, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Laila H Emara
- Industrial Pharmacy Laboratory, Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| |
Collapse
|
3
|
Elsayed EW, El-Ashmawy AA, Mursi NM, Emara LH. Optimization of gliclazide loaded alginate-gelatin beads employing central composite design. Drug Dev Ind Pharm 2019; 45:1959-1972. [PMID: 31692384 DOI: 10.1080/03639045.2019.1689992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Objective: The aim of this study was to optimize the formulation of alginate-gelatin (AL-GL) beads containing gliclazide (GLZ) employing design of experiments (DOE).Significance: DOE enabled identification of the interaction between the studied factors, deep understanding of GLZ release pattern and acceleration of the optimization process.Methods: A three-factor, three-level face centered design was employed. The effects of GLZ content (GLZ%, X1), polymer ratio (AL:GL ratio, X2), crosslinker concentration (glutaraldehyde, GA%, X3), and their interaction on incorporation efficiency (IE) and release rate were studied. The optimized formulation was prepared using numerical optimization and evaluated by DSC, FT-IR, SEM and release rate studies.Results: Increasing GA% (X3) decreased IE (Y1) with the highest magnitude of effect among the studied factors. On the other hand, increasing alginate content in AL:GL ratio (X2) increased IE (Y1). The amount of GLZ released Q0.5h, Q2h(pH 1.2) and Q4h(pH 7.4) decreased by increasing GLZ% (X1) and AL:GL ratio (X2). Both drug content and AL:GL ratio appeared to affect water penetration into the gel matrix and drug release. Generally, there was a direct relationship between GA% (X3) and GLZ release in pH 1.2 (Q0.5h and Q2h). However, in pH 7.4 (Q4h), increasing GA% decreased GLZ release. In addition, increasing GA% caused deviation from zero-order release model. The actual responses of the optimized formulation were in close agreement with the predicted ones.Conclusion: The selected factors and their levels studied in the optimization design were useful for tailoring the anticipated formulation characteristics and GLZ release pattern.
Collapse
Affiliation(s)
- Ebtesam W Elsayed
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| | - Ahmed A El-Ashmawy
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| | - Nadia M Mursi
- Department of Pharmaceutics, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Laila H Emara
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Giza, Egypt
| |
Collapse
|
4
|
Saher O, Ghorab DM, Mursi NM. Preparation and in vitro/in vivo evaluation of antimicrobial ocular in situ gels containing a disappearing preservative for topical treatment of bacterial conjunctivitis. Pharm Dev Technol 2015; 21:600-10. [DOI: 10.3109/10837450.2015.1035728] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Osama Saher
- Department Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Dalia M. Ghorab
- Department Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nadia M. Mursi
- Department Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| |
Collapse
|
5
|
Emara LH, Taha NF, El-Ashmawy AA, Raslan HM, Mursi NM. Controlled porosity osmotic pump system for the delivery of diclofenac sodium: in-vitro and in-vivo evaluation. Pharm Dev Technol 2013; 19:681-91. [PMID: 24320694 DOI: 10.3109/10837450.2013.823990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The objective of this study was to develop controlled porosity osmotic pump (CPOP) tablets of diclofenac sodium (DS). The influence of different cores (polymers and osmogens) and coats (thickness and porosigen content) on DS release were studied. Results revealed that decreasing HPMC viscosity grade from 4000cp (K4M) to 15cp (E15) increased DS release. While increasing the tablet coat thickness decreased DS release. The presence of osmogen increased DS release in the following rank: mannitol > lactose > avicel. There was a direct relationship between increasing PEG-400 in the coating solution and the amount of drug released in all formulations studied, except in one condition. A comparative bioavailability study using a selected CPOP formulation (T) versus the innovator product (R) revealed that CPOP tablet maintained a less fluctuated DS plasma concentration for up to 24 h with a detected mean Cmax of 836.8 ± 142.4 and 445.0 ± 81.0 ng/mL for R and T, respectively. There were no statistically significant differences between R and T, concerning AUC0-24 and AUC0-∞. Moreover, the appearance of the multi-peak phenomenon, which is frequently observed with DS absorption, was found in only 25% of volunteers in case of T versus 75% in case of R.
Collapse
Affiliation(s)
- Laila H Emara
- Industrial Pharmacy Laboratory , Medicinal and Pharmaceutical Chemistry Department and
| | | | | | | | | |
Collapse
|
6
|
Emara LH, Abdou AR, El-Ashmawy AA, Badr RM, Taha NF, Mursi NM. In Vitro Release Evaluation of Gastroretentive Amoxicillin Floating Tablets Employing a Specific Design of the Flow-Through Cell. DISSOLUT TECHNOL 2013. [DOI: 10.14227/dt200113p27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
7
|
Emara LH, Taha NF, Badr RM, Mursi NM. Development of an osmotic pump system for controlled delivery of diclofenac sodium. Drug Discov Ther 2012; 6:269-277. [PMID: 23229148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Based on an elementary osmotic pump, controlled release systems of diclofenac sodium (DS) were designed to deliver the drug in a zero-order release pattern. Osmotic pump tablets containing 100 mg DS were prepared and coated with either semipermeable (SPM) or microporous (PM) membranes. The tablet coats were composed of hydrophobic triacetin (TA) or hydrophilic polyethylene glycol 400 (PEG 400) incorporated in cellulose acetate (CA) solution, for SPM and PM, respectively. Variable tablet core compositions such as swelling polymers (PEO and HPMC) and osmotic agents (lactose, NaCl, and KCl) were studied. An optimized, sensitive and well controlled in vitro release design, based on the flow-through cell (FTC), was utilized to discriminate between preparations. The results revealed that the presence of PEG 400 in the coating membrane accelerated the drug release rate, while TA suppressed the release rate of DS. In the case of SPM, the amount of DS released was inversely proportional to the membrane thickness, where 5% (w/w) weight gain gave a higher DS release rate than 10% (w/w). Results of different tablet core compositions revealed that the release rate of DS decreased as PEO molecular weight increased. HPMC K15M showed the lowest DS release rate. The presence of lactose, KCl, or NaCl pronouncedly affected DS release rate depending on polymer type in the core. Scanning electron microscopy (SEM) confirmed formation of pores in the membrane that accounts for faster DS release rate. These results revealed that DS could be formulated as an osmotic pump system with a prolonged, zero-order release pattern.
Collapse
Affiliation(s)
- L H Emara
- National Research Centre, Dokki, Giza, Egypt.
| | | | | | | |
Collapse
|
8
|
Emara LH, Taha NF, El-Ashmawy AA, Raslan HM, Mursi NM. A RAPID AND SENSITIVE BIOANALYTICAL HPLC METHOD FOR DETERMINING DICLOFENAC SODIUM IN HUMAN PLASMA FOR BIOEQUIVALENCE STUDIES. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.629391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Laila H. Emara
- a Industrial Pharmacy Laboratory, Division of Pharmaceutical Industries, National Research Center , Dokki , Giza , Egypt
| | - Nesrin F. Taha
- a Industrial Pharmacy Laboratory, Division of Pharmaceutical Industries, National Research Center , Dokki , Giza , Egypt
| | - Ahmed A. El-Ashmawy
- a Industrial Pharmacy Laboratory, Division of Pharmaceutical Industries, National Research Center , Dokki , Giza , Egypt
| | - Hala M. Raslan
- b Department of Internal Medicine , Division of Medical Researches, National Research Center , Dokki , Giza , Egypt
| | - Nadia M. Mursi
- c Department of Pharmaceutics, Faculty of Pharmacy , Cairo University , Egypt
| |
Collapse
|
9
|
Emara LH, Taha NF, Mursi NM. Investigation of the Effect of Different Flow-Through Cell Designs on the Release of Diclofenac Sodium SR Tablets. DISSOLUT TECHNOL 2009. [DOI: 10.14227/dt160209p23] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
10
|
Kassem AA, Zaki SA, Mursi NM, Tayel SA. Antimicrobial activity of chloramphenicol in solid dispersion systems. Pharmazie 1979; 34:43-4. [PMID: 34838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The effect of solid dispersion techniques on the antimicrobial activity of chloramphenicol has been studied and it was proven that the antimicrobial activity of chloramphenicol is not affected when the drug is present as a coprecipitate with carbowaxes (4.000, 6.000, 12.000), and PVP 11.000 and 40.000) also in fusion systems with these polymers. In contrast, the antimicrobial activity of the drug is enhanced when it is present in the from of a solid dispersion system.
Collapse
|
11
|
el-Din EN, Mursi NM, Elbary AA, Foda N. Physical parameters of chlorphenamine maleate suppositories and its release as a function of particle size, concentration and nature of the base. Pharmazie 1977; 32:515-7. [PMID: 594118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Suppositories of chlorphenamine maleate were formulated. The influence of particle size and percentage concentration of chlorphenamine maleate on the physical standards of its suppositories as well as the release of the drug from oily base (cacao butter), water-soluble base (carbowax) and emulsifying base (Witepsol) has been investigated.
Collapse
|