Evidence map›Paper›PMID 27445821›Full record

ReviewFrontiers in pharmacology2016

Bioerodable PLGA-Based Microparticles for Producing Sustained-Release Drug Formulations and Strategies for Improving Drug Loading.

Felicity Y Han, Kristofer J Thurecht, Andrew K Whittaker, Maree T Smith

Abstract readReview
In one paragraph

Review in Frontiers in pharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 138 papers.

0numbers the graph read from it
0cells of the map it votes in
138citing papers in PubMed
–field-weighted citation impact
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

138 citing papers in PubMed.

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  15. Colon-Targeted Mucoadhesive PLGA Microspheres Loaded withMolecules (Basel, Switzerland) · 2025
    Article
  16. Review
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78 more citing papers are in PubMed but not listed here.

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.

Felicity Y HanCentre for Integrated Preclinical Drug Development, The University of Queensland Brisbane, QLD, Australia.
Kristofer J ThurechtAustralian Institute for Bioengineering and Nanotechnology, The University of QueenslandBrisbane, QLD, Australia; Centre for Advanced Imaging, The University of QueenslandBrisbane, QLD, Australia; ARC Centre of Excellence in Convergent BioNano Science and TechnologyBrisbane, QLD, Australia.
Andrew K WhittakerAustralian Institute for Bioengineering and Nanotechnology, The University of QueenslandBrisbane, QLD, Australia; ARC Centre of Excellence in Convergent BioNano Science and TechnologyBrisbane, QLD, Australia.
Maree T SmithCentre for Integrated Preclinical Drug Development, The University of QueenslandBrisbane, QLD, Australia; School of Pharmacy, The University of QueenslandBrisbane, QLD, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Poly(lactic-co-glycolic acid) (PLGA) is the most widely used biomaterial for microencapsulation and prolonged delivery of therapeutic drugs, proteins and antigens. PLGA has excellent biodegradability and biocompatibility and is generally recognized as safe by international regulatory agencies including the United States Food and Drug Administration and the European Medicines Agency. The physicochemical properties of PLGA may be varied systematically by changing the ratio of lactic acid to glycolic acid. This in turn alters the release rate of microencapsulated therapeutic molecules from PLGA microparticle formulations. The obstacles hindering more widespread use of PLGA for producing sustained-release formulations for clinical use include low drug loading, particularly of hydrophilic small molecules, high initial burst release and/or poor formulation stability. In this review, we address strategies aimed at overcoming these challenges. These include use of low-temperature double-emulsion methods to increase drug-loading by producing PLGA particles with a small volume for the inner water phase and a suitable pH of the external phase. Newer strategies for producing PLGA particles with high drug loading and the desired sustained-release profiles include fabrication of multi-layered microparticles, nanoparticles-in-microparticles, use of hydrogel templates, as well as coaxial electrospray, microfluidics, and supercritical carbon dioxide methods. Another recent strategy with promise for producing particles with well-controlled and reproducible sustained-release profiles involves complexation of PLGA with additives such as polyethylene glycol, poly(ortho esters), chitosan, alginate, caffeic acid, hyaluronic acid, and silicon dioxide.

Indexed as

biodegradation mechanismsdrug delivery systemhydrogel templatehydrophilic moleculemicrofluidicsPLGA microparticlessupercritical carbon dioxidetuneable release

Identifiers

PMID27445821
PMCPMC4923250

What OpenQuestion holds

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Registered trials

None linked

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.