deltatrials
Completed NA INTERVENTIONAL 4-arm NCT04710394

Visual-OLfactory Training in Participants With COVID-19 Resultant Loss of Smell (VOLT)

Efficacy of Bimodal Visual-Olfactory Training in Participants With COVID-19 Resultant Hyposmia or Anosmia Using Participant-Preferred Scents

Sponsor: Washington University School of Medicine

Interventions Smell Training
Updated 6 times since 2021 Last updated: Jun 16, 2022 Started: Jan 11, 2021 Primary completion: Mar 11, 2022 Completion: Mar 11, 2022
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A NA clinical study on Ageusia and Anosmia, this trial is completed. The trial is conducted by Washington University School of Medicine and has accumulated 6 data snapshots since 2021. Infectious disease trials contribute critical data for public health response and treatment development.

Status Flow

~Feb 2021 – ~May 2021 · 3 months · monthly snapshotRecruiting~May 2021 – ~Jul 2022 · 14 months · monthly snapshotActive Not Recruiting~Jul 2022 – ~Jul 2024 · 24 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 9 months · monthly snapshotCompleted

Change History

6 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. Jul 2022 — Jul 2024 [monthly]

    Completed NA

    Status: Active Not RecruitingCompleted

  5. May 2021 — Jul 2022 [monthly]

    Active Not Recruiting NA

    Status: RecruitingActive Not Recruiting

Show 1 earlier version
  1. Feb 2021 — May 2021 [monthly]

    Recruiting NA

    First recorded

Jan 2021

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Washington University School of Medicine
Data source: Washington University School of Medicine

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

Study Locations