deltatrials
Completed PHASE2 INTERVENTIONAL 3-arm NCT02768805

Immunogenicity of a Quadrivalent Virus-Like Particles (VLP) Influenza Vaccine in Healthy Adults

Immunogenicity, Safety, and Tolerability of a Plant-Derived Quadrivalent VLP Influenza Vaccine in Adults 18-64 Years of Age

Sponsor: Medicago

Conditions RNA Virus Infections Respiratory Tract Diseases Respiratory Tract Infections Virus Diseases
Interventions 15 µg/strain of Quadrivalent VLP Vaccine 15 µg/strain of the licensed quadrivalent vaccine 30 µg/strain of Quadrivalent VLP Vaccine
Updated 11 times since 2017 Last updated: Jun 8, 2020 Started: Mar 2, 2016 Primary completion: May 17, 2016 Completion: Nov 26, 2016
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE2 trial investigates RNA Virus Infections and Respiratory Tract Diseases and is currently completed. Medicago leads this study, which shows 11 recorded versions since 2016 — indicating substantial longitudinal coverage. Longitudinal tracking of infectious disease trials helps identify durability of treatment effects.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotActive Not Recruiting~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotActive Not Recruiting~Jun 2018 – ~Aug 2018 · 2 months · monthly snapshotActive Not Recruiting~Aug 2018 – ~Nov 2019 · 15 months · monthly snapshotUnknown Status~Nov 2019 – ~Dec 2019 · 30 days · monthly snapshotCompleted~Dec 2019 – ~Jul 2020 · 7 months · monthly snapshotCompleted~Jul 2020 – ~Jan 2021 · 6 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

11 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed PHASE2

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE2

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE2

  4. Jan 2021 — Jul 2024 [monthly]

    Completed PHASE2

  5. Jul 2020 — Jan 2021 [monthly]

    Completed PHASE2

▶ Show 6 earlier versions

  1. Dec 2019 — Jul 2020 [monthly]

    Completed PHASE2

  2. Nov 2019 — Dec 2019 [monthly]

    Completed PHASE2

    Status: Unknown Status → Completed

  3. Aug 2018 — Nov 2019 [monthly]

    Unknown Status PHASE2

    Status: Active Not Recruiting → Unknown Status

  4. Jun 2018 — Aug 2018 [monthly]

    Active Not Recruiting PHASE2

  5. Feb 2017 — Jun 2018 [monthly]

    Active Not Recruiting PHASE2

  6. Jan 2017 — Feb 2017 [monthly]

    Active Not Recruiting PHASE2

    First recorded

Mar 2016

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Medicago
Data source: Medicago

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

Study Locations