deltatrials
Completed NA INTERVENTIONAL 7-arm NCT04050267

Effects of Low Concentrations of Nitrous Oxide

Effects of Low Concentrations of Nitrous Oxide on Cognitive Functions and Reaction Time

Sponsor: Czech Technical University in Prague

Conditions Nitrous Oxide Poisoning
Interventions Nitrous Oxide Placebo - air
Updated 5 times since 2019 Last updated: Aug 7, 2019 Started: Apr 25, 2019 Primary completion: Apr 29, 2019 Completion: Apr 29, 2019
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This NA trial investigates Nitrous Oxide Poisoning and is currently completed. Czech Technical University in Prague leads this study, which shows 5 recorded versions since 2019 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Sep 2019 – ~Jan 2021 · 16 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 10 months · monthly snapshotCompleted

Change History

5 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed NA

  2. Sep 2024 — Sep 2025 [monthly]

    Completed NA

  3. Jul 2024 — Sep 2024 [monthly]

    Completed NA

  4. Jan 2021 — Jul 2024 [monthly]

    Completed NA

  5. Sep 2019 — Jan 2021 [monthly]

    Completed NA

    First recorded

Apr 2019

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Czech Technical University in Prague
Data source: Czech Technical University in Prague

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations