Evidence map›Paper›PMID 29470771›Full record

ArticleProgress in biomaterials2014

In vitro-in vivo correlation from lactide-co-glycolide polymeric dosage forms.

Susan D'Souza, Jabar A Faraj, Stefano Giovagnoli, Patrick P DeLuca

Abstract read
In one paragraph

Article in Progress in biomaterials, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Review
  2. In vitro-in vivo correlation (IVIVC) development for long-acting injectable drug products based on poly(lactide-co-glycolide).Journal of controlled release : official journal of the Controlled Release Society · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Evaluation of a transtympanic delivery system in Mus musculus for extended release steroids.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2019
    Article
  9. Nanostructured liquid crystalline formulation as a remarkable new drug delivery system of anti-epileptic drugs for treating children patients.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2018
    Article
  10. Article
  11. Article
  12. In vitro-in vivo correlation for complex non-oral drug products: Where do we stand?Journal of controlled release : official journal of the Controlled Release Society · 2015
    Review
  13. In vitro-in vivo correlation of parenteral risperidone polymeric microspheres.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Article
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.

Susan D'SouzaUniversity of Kentucky College of Pharmacy, Lexington, KY, 40536, USA. dr_ssdsouza@yahoo.com.
Jabar A FarajUniversity of Kentucky College of Pharmacy, Lexington, KY, 40536, USA.
Stefano GiovagnoliUniversity of Kentucky College of Pharmacy, Lexington, KY, 40536, USA.
Patrick P DeLucaUniversity of Kentucky College of Pharmacy, Lexington, KY, 40536, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objective of this study was to compare the in vitro behavior of four long-acting subcutaneous risperidone formulations with in vivo performance, with the intent of establishing an IVIVC. Two copolymers of PLGA (50:50 and 75:25) were used to prepare four microsphere formulations of risperidone, an atypical antipsychotic. In vitro behavior was assessed at the physiological temperature (37 °C) using the 'modified dialysis' technique. The in vitro release profile demonstrated rank order behavior with Formulations A and B, prepared using the 50:50 copolymer, exhibiting rapid drug release, while Formulations C and D, prepared using 75:25 PLGA, released drug in a slower manner. In vivo profiles were obtained by two approaches, i.e., deconvolution using the Nelson-Wagner equation (the FDA recommended approach) and using fractional AUC. With both in vivo approaches, the 50:50 PLGA preparations released drug faster than the 75:25 PLGA microspheres, exhibiting the same rank order observed in vitro. Additionally, profiles for the four formulations obtained using the deconvolution approach were nearly superimposable with fractional AUC, implying that the latter procedure could be used as a substitute for the Nelson-Wagner method. A comparison of drug release profiles for the four formulations revealed that in three of the four formulations, in vivo release was slightly faster than that in vitro, but the results were not statistically significant (P > 0.0001). An excellent linear correlation (R

Indexed as

Fractional AUCIn vitro–in vivo correlationLevel AModified dialysis methodNelson–WagnerPLGA microspheresRisperidone

Identifiers

PMID29470771
PMCPMC5301450

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.