Evidence map›Paper›PMID 33146843›Full record

ArticleAdvances in therapy2021

Pharmacokinetics and Safety of Single and Multiple Doses of Oral N-Acetylcysteine in Healthy Chinese and Caucasian Volunteers: An Open-Label, Phase I Clinical Study.

Alberto Papi, Andrea F D Di Stefano, Milko Radicioni

Open access · hybridAbstract readClinical Trial, Phase I
In one paragraph

Article in Advances in therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

  1. Redefining the role of the thiol-based agentRSC medicinal chemistry · 2026
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  2. Systematic evaluation and comparison of theCurrent research in food science · 2026
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  10. Development of DipeptidePharmaceutics · 2023
    Article
  11. Review
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  14. Article
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  16. Article
  17. Antioxidants (Basel, Switzerland) · 2021
    Review
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

3 authors at 2 institutions in 2 countries.

Alberto PapiDivision of Internal and Cardiorespiratory Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy.
Andrea F D Di StefanoCROSS Research S.A., Arzo, Switzerland. andrea.distefano@croalliance.com.ORCID http://orcid.org/0000-0002-4316-9039
Milko RadicioniCROSS Research S.A., Arzo, Switzerland.
Swiss Red Cross · CHUniversity of Ferrara · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFew studies have evaluated whether the pharmacokinetics of N-acetyl-cysteine (NAC) are different in Chinese and Caucasian individuals.

methodsThis single- and multiple-dose, single-centre, open-label, phase I clinical study was conducted in healthy adult volunteers. All participants received oral NAC 600-mg uncoated tablets, which were administered first as a single dose and, following a 48-h wash-out period, twice daily for 3 days. Blood and urine were collected after single- and multiple-dose NAC administration. Adverse event (AE) data were collected throughout the study.

resultsFifteen Chinese and 15 Caucasian (mostly Italian) individuals (males 66.7%, mean age 36.8 years) participated in the study. Pharmacokinetic characteristics of NAC were similar in the two cohorts. Following both single- and multiple-dose administration, plasma concentration of NAC increased rapidly, reaching a peak at approximately 1.0 h. Maximum plasma concentration and extent of exposure were higher after multiple doses than after a single dose. The accumulation ratio was relatively consistent in both Chinese (mean ± standard deviation 1.5 ± 0.4) and Caucasian (1.4 ± 0.2) participants. The half-life was 15.4 h in Chinese and 18.7 h in Caucasian participants, and the fraction of NAC excreted in urine in the 36 h following administration was 3.7% in Chinese and 3.8% in Caucasian participants. Two Caucasian participants had a total of 3 AEs (headache, presyncope and dysmenorrhoea). No AEs occurred in Chinese participants.

conclusionsThe pharmacokinetic characteristics of NAC are similar in healthy Chinese and Caucasian individuals after single and repeated administration. NAC has a favourable tolerability profile.

Indexed as

AcetylcysteineAsian PeopleAdministration, OralAdultArea Under CurveChinaDose-Response Relationship, DrugHealthy VolunteersHumansMaleAcetylcysteineCaucasianChineseHealthy volunteerN-acetylcysteinePharmacokineticsPhase I

Identifiers

PMID33146843
PMCPMC7854405
OpenAlexW3097245825

What OpenQuestion holds

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LicenceCC BY-NC
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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.