deltatrials
Completed NA INTERVENTIONAL 2-arm NCT04951336

RCT of Mushroom Based Natural Product to Enhance Immune Response to COVID-19 Vaccination (MACH19)

Multicenter Double-Blind, Placebo-Controlled RCT of Fomitopsis Officinalis/Trametes Versicolor for COVID-19

Sponsor: University of California, San Diego

Interventions FoTv
Updated 10 times since 2021 Last updated: Aug 15, 2025 Started: Jun 10, 2021 Primary completion: Jan 21, 2022 Completion: Jul 6, 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 COVID-19 Vaccination, this trial is completed. The trial is conducted by University of California, San Diego and has accumulated 10 data snapshots since 2021. Infectious disease trials contribute critical data for public health response and treatment development.

Status Flow

~Sep 2021 – ~Nov 2021 · 2 months · monthly snapshotRecruiting~Nov 2021 – ~Feb 2022 · 3 months · monthly snapshotRecruiting~Feb 2022 – ~Mar 2022 · 28 days · monthly snapshotActive Not Recruiting~Mar 2022 – ~Dec 2022 · 9 months · monthly snapshotActive Not Recruiting~Dec 2022 – ~Sep 2023 · 9 months · monthly snapshotActive Not Recruiting~Sep 2023 – ~Jun 2024 · 9 months · monthly snapshotActive Not Recruiting~Jun 2024 – ~Jul 2024 · 30 days · monthly snapshotActive Not Recruiting~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotActive Not Recruiting~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotActive Not Recruiting~Sep 2025 – present · 10 months · monthly snapshotCompleted

Change History

10 versions recorded
  1. Sep 2025 — Present [monthly]

    Completed NA

    Status: Active Not RecruitingCompleted

  2. Sep 2024 — Sep 2025 [monthly]

    Active Not Recruiting NA

  3. Jul 2024 — Sep 2024 [monthly]

    Active Not Recruiting NA

  4. Jun 2024 — Jul 2024 [monthly]

    Active Not Recruiting NA

  5. Sep 2023 — Jun 2024 [monthly]

    Active Not Recruiting NA

Show 5 earlier versions
  1. Dec 2022 — Sep 2023 [monthly]

    Active Not Recruiting NA

  2. Mar 2022 — Dec 2022 [monthly]

    Active Not Recruiting NA

  3. Feb 2022 — Mar 2022 [monthly]

    Active Not Recruiting NA

    Status: RecruitingActive Not Recruiting

  4. Nov 2021 — Feb 2022 [monthly]

    Recruiting NA

    Phase: PHASE2NA

  5. Sep 2021 — Nov 2021 [monthly]

    Recruiting PHASE2

    First recorded

Jun 2021

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • University of California, San Diego
Data source: University of California, San Diego

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

Study Locations