Evidence map›Paper›PMID 26892947›Full record

ArticlePharmaceutical research2016

Characterization of Supersaturated Danazol Solutions - Impact of Polymers on Solution Properties and Phase Transitions.

Matthew J Jackson, Umesh S Kestur, Munir A Hussain, Lynne S Taylor

Abstract read
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Article in Pharmaceutical research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.7field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 47 citations in OpenAlex.

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  11. Cellulose based polymers in development of amorphous solid dispersions.Asian journal of pharmaceutical sciences · 2019
    Review
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  13. Influence of the estrus cycle of the mouse on the disposition of SHetA2 after vaginal administration.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Matthew J JacksonDepartment of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Dr, West Lafayette, Indiana, 47907, USA.
Umesh S KesturBristol-Myers Squibb Company, New Brunswick, New Jersey, 08903, USA.
Munir A HussainBristol-Myers Squibb Company, New Brunswick, New Jersey, 08903, USA.
Lynne S TaylorDepartment of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Dr, West Lafayette, Indiana, 47907, USA. lstaylor@purdue.edu.
Purdue University West Lafayette · USThe Bristol-Myers Squibb Children's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeExcipients are essential for solubility enhancing formulations. Hence it is important to understand how additives impact key solution properties, particularly when supersaturated solutions are generated by dissolution of the solubility enhancing formulation. Herein, the impact of different concentrations of dissolved polymers on the thermodynamic and kinetic properties of supersaturated solutions of danazol were investigated.

methodsA variety of experimental techniques was used, including nanoparticle tracking analysis, fluorescence and ultraviolet spectroscopy and flux measurements to characterize the solution phase behavior.

resultsNeither the crystalline nor amorphous solubility of danazol was impacted by common amorphous solid dispersion polymers, polyvinylpyrrolidone, hydroxypropylmethyl cellulose (HPMC) or HPMC-acetate succinate. Consequently, the maximum membrane transport rate was limited only by the amorphous solubility, and not by the presence of the polymers. The polymers were able to inhibit crystallization to some extent at concentrations as low as 1 μg/mL, with the maximum effectiveness being reached at 10 μg/mL. Aqueous danazol solutions formed a drug-rich phase with a mean size of 250 nm when the concentration exceeded the amorphous solubility, and the polymers modified the surface properties of this drug-rich phase.

conclusionsThe phase behavior of supersaturated solutions is complex and the kinetics of phase transformations can be substantially modified by polymeric additives present at low concentrations. However, fortunately, these additives do not appear to impact the bulk thermodynamic properties of the solution, thus enabling supersaturated solutions, which provide enhanced membrane transport relative to saturated solutions to be generated.

Indexed as

CrystallizationDanazolEstrogen AntagonistsExcipientsHypromellose DerivativesKineticsMethylcelluloseParticle SizePhase TransitionPovidoneSolubilitySolutionsDanazolEstrogen AntagonistsExcipientshydroxypropylmethylcellulose acetate succinateHypromellose DerivativesMethylcellulosePovidoneSolutionscrystallizationliquid liquid phase separationmembrane transportsupersaturation

Identifiers

PMID26892947
OpenAlexW2284608490

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.