Evidence map›Paper›PMID 23529740›Full record

ArticleAntimicrobial agents and chemotherapy2013

Phase I, single-dose, dose-escalating study of inhaled dry powder capreomycin: a new approach to therapy of drug-resistant tuberculosis.

Ashwin S Dharmadhikari, Mohan Kabadi, Bob Gerety, Anthony J Hickey, P Bernard Fourie, Edward Nardell

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

Article in Antimicrobial agents and chemotherapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
10.7field-weighted citation impact, top 1% 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

44 citing papers in PubMed, 135 citations in OpenAlex.

  1. Review
  2. Article
  3. Outstanding Contributions to Aerosol Pulmonary Drug Delivery.Kona : powder science and technology in Japan · 2026
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  18. AllCurrent research in immunology · 2022
    Review
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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

6 authors at 3 institutions in 2 countries.

Ashwin S DharmadhikariBrigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Mohan Kabadi
Bob Gerety
Anthony J Hickey
P Bernard Fourie
Edward Nardell
Harvard University · USUniversity of North Carolina at Chapel Hill · USUniversity of Pretoria · ZA

Funding

Effect of HIV Infection on Pulmonary MDR-TB Transmission and VirulenceK23AI084548 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI DHARMADHIKARI, ASHWIN S. · 2009 to 2013
$682k
NIAID NIH HHS K23 AI084548
6 · The paper itself

Abstract

Multidrug-resistant tuberculosis (MDR-TB) threatens global TB control. The lengthy treatment includes one of the injectable drugs kanamycin, amikacin, and capreomycin, usually for the first 6 months. These drugs have potentially serious toxicities, and when given as intramuscular injections, dosing can be painful. Advances in particulate drug delivery have led to the formulation of capreomycin as the first antituberculosis drug available as a microparticle dry powder for inhalation and clinical study. Delivery by aerosol may result in successful treatment with lower doses. Here we report a phase I, single-dose, dose-escalating study aimed at demonstrating safety and tolerability in healthy subjects and measuring pharmacokinetic (PK) parameters. Twenty healthy adults (n = 5 per group) were recruited to self-administer a single dose of inhaled dry powder capreomycin (25-mg, 75-mg, 150-mg, or 300-mg nominal dose) using a simple, handheld delivery device. Inhalations were well tolerated by all subjects. The most common adverse event was mild to moderate transient cough, in five subjects. There were no changes in lung function, audiometry, or laboratory parameters. Capreomycin was rapidly absorbed after inhalation. Systemic concentrations were detected in each dose group within 20 min. Peak and mean plasma concentrations of capreomycin were dose proportional. Serum concentrations exceeded 2 μg/ml (MIC for Mycobacterium tuberculosis) following the highest dose; the half-life (t1/2) was 4.8 ± 1.0 h. A novel inhaled microparticle dry powder formulation of capreomycin was well tolerated. A single 300-mg dose rapidly achieved serum drug concentrations above the MIC for Mycobacterium tuberculosis, suggesting the potential of inhaled therapy as part of an MDR-TB treatment regimen.

Indexed as

Administration, InhalationAdolescentAdultAntitubercular AgentsCapreomycinDrug Delivery SystemsDry Powder InhalersFemaleHumansMaleMiddle AgedMycobacterium tuberculosisPowdersTreatment OutcomeTuberculosis, Multidrug-ResistantYoung AdultAntitubercular AgentsCapreomycinPowders

Identifiers

PMID23529740
PMCPMC3716148
OpenAlexW2127971692

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.