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Record W4411092247 · doi:10.1128/aac.00395-25

Pharmacokinetics of nikkomycin Z following multiple doses in healthy subjects

2025· article· en· W4411092247 on OpenAlexaff
David E. Nix, Susan E. Hoover, Nathan Hanan, John N. Galgiani

Bibliographic record

VenueAntimicrobial Agents and Chemotherapy · 2025
Typearticle
Languageen
FieldMedicine
TopicFungal Infections and Studies
Canadian institutionsSmiths Detection (Canada)
FundersNational Institute of Allergy and Infectious DiseasesU.S. Food and Drug Administration
KeywordsPharmacokineticsBioavailabilityMedicineDosingPharmacologyAnimal scienceBiology

Abstract

fetched live from OpenAlex

spp. The purpose of this study was to determine the pharmacokinetics and safety when administered as multiple, ascending doses in healthy subjects. Healthy adult volunteers received nikkomycin Z in oral doses ranging from 250 mg twice daily to 750 mg three times a day for 14 days. An intensive pharmacokinetic study was conducted after the first dose (day 1) and after the last dose (day 14). Subjects were also monitored for safety and tolerance but were not confined to the facility continuously. Doses were tracked by self-reporting and were observed prior to intensive pharmacokinetic studies. On day 14, the mean (sd) maximal concentration ranged from 3.70 (1.08) to 6.89 (1.59) mg/L, and mean time of maximal concentration ranged from 2.3 to 3.0 h. The mean area under the time curve from time 0 to end of the dosing interval (8 or 12 h) was 17.3 (5.2) mg h/L for 250 mg twice daily, 28.5 (9.5) for 500 mg twice daily, 34.5 (10.9) for 750 mg twice daily, and 35.6 (8.4) for 750 mg thrice daily. The mean half-life ranged from 1.94 to 2.18 h. Bioavailability was less than proportional to dose for the 750 mg doses. Nikkomycin Z was well tolerated, and the study was completed without any serious safety concerns. This study supports continued development of nikkomycin Z as a potential therapeutic for the treatment of coccidioidomycosis.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.016
GPT teacher head0.313
Teacher spread0.297 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes1
Has abstractyes

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