Evidence map›Paper›PMID 27668024›Full record

ArticleCurrent therapeutic research, clinical and experimental2016

Effervescent N-Acetylcysteine Tablets versus Oral Solution N-Acetylcysteine in Fasting Healthy Adults: An Open-Label, Randomized, Single-Dose, Crossover, Relative Bioavailability Study.

Spencer C Greene, Patrick K Noonan, Carlos Sanabria, W Frank Peacock

Registry-linked trialAbstract read
In one paragraph

Article in Current therapeutic research, clinical and experimental, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02723669 (Open Label, Randomized, Two-Arm, Single-Dose, Two-Period, Crossover Study to Determine the Relative Bioavailability of AR10), which is not on this map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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.

NCT02723669 phase1completednot on this map

Open Label, Randomized, Two-Arm, Single-Dose, Two-Period, Crossover Study to Determine the Relative Bioavailability of AR10 (Acetylcysteine Effervescent Tablets) Compared to Reference Product in Healthy, Adult Subjects, Fasting

TypeinterventionalSponsorArbor Pharmaceuticals, Inc.Ran2014 to 2014Enrolled30ConditionsHealthyArmsAR10, acetylcysteine
3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Article
  2. Advances in the Use ofAntioxidants (Basel, Switzerland) · 2023
    Review
  3. Review
  4. Antioxidants (Basel, Switzerland) · 2021
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. 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.

Spencer C GreeneDepartment of Emergency Medicine, Ben Taub Hospital, Baylor College of Medicine , Houston, Texas.
Patrick K NoonanPK Noonan Pharmaceutical Consulting, LLC , Williamsburg, Virginia.
Carlos SanabriaSpaulding Clinical Research, LLC , West Bend, Wisconsin.
W Frank PeacockDepartment of Emergency Medicine, Ben Taub Hospital, Baylor College of Medicine , Houston, Texas.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOral solution N-acetylcysteine (NAC) is an antidote for acetaminophen overdose, but its unpleasant taste and aroma can impede delivery even after the coadministration of antiemetic medications. Flavored effervescent NAC tablets dissolved in water might be a more palatable formulation than oral solution NAC diluted with soft drink.

objectivesTo evaluate the relative bioavailability of these 2 formulations and assess subjective preferences between them.

methodsThirty healthy adult volunteers (mean [SD] = 35.2 [9.14] years) were enrolled in this open-label, randomized, single-dose, crossover study, with a 7-day washout period. Volunteers were randomized to receive 11 g effervescent test formulation or the reference product under fasting conditions, after which 19 serial blood samples were collected over 48 hours. Total plasma NAC concentrations were evaluated by LC-MS, and pharmacokinetic parameters were calculated. The 2 formulations were considered bioequivalent if the 90% CIs of log-transformed ratios of pharmacokinetic parameters were within the predetermined bioequivalence range (80%-125%) established by the US Food and Drug Administration. Within 15 minutes of dosing, subjects were also asked to rank formulation attributes on a 5-point hedonic scale, with mean group differences analyzed by Wilcoxon signed rank test. Safety-profile assessment included treatment-emergent adverse events, physical examination, chemistry, and hematology parameters.

resultsThe concentration-versus-time profiles were similar for the 2 formulations, with mean Cmax of 26.5 μg/mL for effervescent NAC tablets and 28.4 μg/mL for oral solution NAC. The 90% CIs for the pharmacokinetic parameters met the criteria for concluding bioequivalence, and subjects preferred effervescent NAC tablets in terms of taste (P = 0.0247), flavor (P = 0.0082), texture (P = 0.009), and overall likeability (P = 0.0012), but there was no difference for smell (P = 0.0533). All treatment-emergent adverse events were mild, with no differences between the treatment groups.

conclusionsData from this study of a single dose of 11 g oral NAC demonstrated that effervescent NAC tablets and oral solution NAC met the regulatory criteria for bioequivalence in fasting healthy adult subjects. Effervescent NAC tablets appear to be a more palatable alternative for treatment of acetaminophen overdose. ClinicalTrials.gov identifier: NCT02723669. (Curr Ther Res Clin Exp. 2016; 83C:1-7) © 2016 Elsevier HS Journals, Inc.

Indexed as

acetaminophenbioavailabilityeffervescent tabletsN-acetylcysteinepharmacokinetics

Identifiers

PMID27668024
PMCPMC5024139

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Registered trials

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.