Evidence map›Paper›PMID 23661145›Full record

ArticlePharmaceutical research2013

Toward the establishment of standardized in vitro tests for lipid-based formulations, part 3: understanding supersaturation versus precipitation potential during the in vitro digestion of type I, II, IIIA, IIIB and IV lipid-based formulations.

Hywel D Williams, Philip Sassene, Karen Kleberg, Marilyn Calderone, Annabel Igonin, Eduardo Jule, Jan Vertommen, Ross Blundell, Hassan Benameur, Anette Müllertz and 3 more

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Article in Pharmaceutical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

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30citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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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

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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

30 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Acta pharmaceutica Sinica. B · 2021
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Lipid-associated oral delivery: Mechanisms and analysis of oral absorption enhancement.Journal of controlled release : official journal of the Controlled Release Society · 2016
    Review
  20. Article
4 · The record

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5 · Who and what money

Authors and funding

13 authors.

Hywel D WilliamsDrug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, 3052, Australia.
Philip Sassene
Karen Kleberg
Marilyn Calderone
Annabel Igonin
Eduardo Jule
Jan Vertommen
Ross Blundell
Hassan Benameur
Anette Müllertz
Colin W Pouton
Christopher J H Porter
LFCS Consortium

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRecent studies have shown that digestion of lipid-based formulations (LBFs) can stimulate both supersaturation and precipitation. The current study has evaluated the drug, formulation and dose-dependence of the supersaturation - precipitation balance for a range of LBFs.

methodsType I, II, IIIA/B LBFs containing medium-chain (MC) or long-chain (LC) lipids, and lipid-free Type IV LBF incorporating different doses of fenofibrate or tolfenamic acid were digested in vitro in a simulated intestinal medium. The degree of supersaturation was assessed through comparison of drug concentrations in aqueous digestion phases (APDIGEST) during LBF digestion and the equilibrium drug solubility in the same phases.

resultsIncreasing fenofibrate or tolfenamic acid drug loads (i.e., dose) had negligible effects on LC LBF performance during digestion, but promoted drug crystallization (confirmed by XRPD) from MC and Type IV LBF. Drug crystallization was only evident in instances when the calculated maximum supersaturation ratio (SR(M)) was >3. This threshold SR(M) value was remarkably consistent across all LBF and was also consistent with previous studies with danazol.

conclusionsThe maximum supersaturation ratio (SR(M)) provides an indication of the supersaturation 'pressure' exerted by formulation digestion and is strongly predictive of the likelihood of drug precipitation in vitro. This may also prove effective in discriminating the in vivo performance of LBFs.

Indexed as

Chemical PrecipitationCrystallizationDigestionFenofibrateHumansHypolipidemic AgentsIntestinesLipid MetabolismLipidsortho-AminobenzoatesPharmaceutical VehiclesSolubilityFenofibrateHypolipidemic AgentsLipidsortho-AminobenzoatesPharmaceutical Vehiclestolfenamic acid

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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.