Preparation and characterization of progesterone dispersions using supercritical carbon dioxide

Falconer, James R., Wen, Jingyuan, Zargar-Shoshtari, Sara, Chen, John J., Farid, Mohammed, Tallon, Stephen J. and Alany, Raid G. (2014) Preparation and characterization of progesterone dispersions using supercritical carbon dioxide. Drug Development and Industrial Pharmacy, 40 4: 458-469. doi:10.3109/03639045.2013.768630

Author Falconer, James R.
Wen, Jingyuan
Zargar-Shoshtari, Sara
Chen, John J.
Farid, Mohammed
Tallon, Stephen J.
Alany, Raid G.
Title Preparation and characterization of progesterone dispersions using supercritical carbon dioxide
Journal name Drug Development and Industrial Pharmacy   Check publisher's open access policy
ISSN 0363-9045
Publication date 2014
Sub-type Article (original research)
DOI 10.3109/03639045.2013.768630
Open Access Status Not Open Access
Volume 40
Issue 4
Start page 458
End page 469
Total pages 12
Place of publication Philadelphia, PA, United States
Publisher Taylor & Francis
Language eng
Subject 3002 Drug Discovery
3004 Pharmacology
1605 Policy and Administration
Formatted abstract
Context: Supercritical fluid methods offer an alternative to conventional mixing methods, particularly for heat sensitive drugs and where an organic solvent is undesirable.

Objective: To design, develop and construct a unit for the particles from a gas-saturated suspension/solution (PGSS) method and form endogenous progesterone (PGN) dispersion systems using SC-CO2.

Materials and methods: The PGN dispersions were manufactured using three selected excipients: polyethylene glycol (PEG) 400/4000 (50:50), Gelucire 44/14 and D-α-tocopheryl PEG 1000 succinate (TPGS). Semisolid dispersions of PGN prepared by PGSS method were compared to the conventional methods; comelting (CM), cosolvent (CS) and physical mixing (PM). The dispersion systems made were characterized by Raman and Fourier transform infrared (FTIR) spectroscopies, X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), PGN recovery, uniformity and in vitro dissolution, analyzed by high-performance liquid chromatography (HPLC).

Results: Raman spectra revealed no changes in the crystalline structure of PGN treated with SC-CO2 compared to that of untreated PGN. XRPD and FTIR showed the presence of peaks and bands for PGN confirming that PGN has been incorporated well with each individual excipient. All PGN dispersions prepared by the PGSS method resulted in the improvement of PGN dissolution rates compared to that prepared by the conventional methods and untreated PGN after 60 min (p value<0.05).

Conclusion: The novel PGN dispersions prepared by the PGSS method offer the great potential to enhance PGN dissolution rate, reduce preparation time and form stable crystalline dispersion systems over those prepared by conventional methods.
Keyword Comelt
Gelucire 44/14
In vitro dissolution
Infrared spectroscopy
Particles from a gas-saturated suspension/solution
Physical mix
Vitamin E (TPGS)
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Pharmacy Publications
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
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