deltatrials
Completed PHASE4 INTERVENTIONAL 2-arm NCT00397254

Two Rizatriptan Prescribing Portions for Treatment of Migraine

An Observer-Blind, Randomized, Parallel-Group Study to Compare the Efficacy of Two Rizatriptan Prescribing Portions for the Treatment of Migraine

Sponsor: Clinvest

Conditions Migraine
Interventions rizatriptan
Updated 9 times since 2017 Last updated: Jun 7, 2010 Started: Dec 31, 2006 Primary completion: Jan 31, 2008 Completion: Jan 31, 2008
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE4 trial investigates Migraine and is currently completed. Clinvest leads this study, which shows 9 recorded versions since 2006 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotCompleted~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotCompleted~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotCompleted~Jan 2021 – ~Apr 2022 · 15 months · monthly snapshotCompleted~Apr 2022 – ~Jun 2022 · 2 months · monthly snapshotCompleted~Jun 2022 – ~Jul 2024 · 25 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

9 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed PHASE4

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE4

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE4

  4. Jun 2022 — Jul 2024 [monthly]

    Completed PHASE4

  5. Apr 2022 — Jun 2022 [monthly]

    Completed PHASE4

▶ Show 4 earlier versions

  1. Jan 2021 — Apr 2022 [monthly]

    Completed PHASE4

  2. Jun 2018 — Jan 2021 [monthly]

    Completed PHASE4

  3. Feb 2017 — Jun 2018 [monthly]

    Completed PHASE4

  4. Jan 2017 — Feb 2017 [monthly]

    Completed PHASE4

    First recorded

Dec 2006

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Clinvest
  • Merck Sharp & Dohme LLC
Data source: Clinvest

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

Study Locations