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Completed Phase 3 Interventional Results available

Safety and Tolerability of POD-DHE (INP104) in Migraine (STOP 301)

ClinicalTrials.gov ID: NCT03557333

Public ClinicalTrials.gov record NCT03557333. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 6:43 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Open-label Study of Safety and Tolerability of Chronic Intermittent Usage for 24 or 52 Weeks of Intranasal Dihydroergotamine Mesylate (DHE) Administered Using the I123 Precision Olfactory Delivery (POD®) Device [INP104, POD-DHE] in Patients With Migraine Headache

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study consists of a 4-week screening period, a 24-week treatment period for all participants, followed by a 28-week treatment period extension (to 52 weeks in total) for a subset of at least 60 and up to 80 participants, and a 2-week post-treatment follow-up period.

Study identification

NCT ID
NCT03557333
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Impel Pharmaceuticals
Industry
Enrollment
360 participants

Conditions and interventions

Interventions

Combination Product

Eligibility (public fields only)

Age range
18 Years to 65 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 12, 2018
Primary completion
Mar 16, 2020
Completion
Mar 16, 2020
Last update posted
Mar 10, 2021

2018 – 2020

United States locations

U.S. sites
36
U.S. states
25
U.S. cities
35
Facility City State ZIP Site status
Synexus - Clinical Research Advantage, Inc. - Simon Williamson Clinical, PC., 832 Princeton Avenue Southwest Birmingham Alabama 35211
Alabama Clinical Therapeutics, LLC., 52 Medical Park East Drive, Suite 203 Birmingham Alabama 35235
Synexus - Radiant Research, Inc. - Phoenix SE, 2081 West Frye Road Chandler Arizona 85224
Synexus - Clinical Research Advantage, Inc., Central Phoenix Medical Clinic, LLC., 7600 North 15th Street, Suite 191 Phoenix Arizona 85020
Collaborative Neuroscience Network, LLC., 2600 Redondo Avenue, Suite 415 Long Beach California 90806
Excell Research, 3998 Vista Way Oceanside California 92056
Synexus - Clinical Research Advantage, Inc. - Colorado Springs Family Practice, 2960 North Circle Drive, Suite 200 Colorado Springs Colorado 80909
Clinical Neuroscience Solutions, Inc., 5200 Belfort Road, Suite 420 Jacksonville Florida 32256
Clinical Neuroscience Solutions, Inc., 618 East South Street, Suite 100 Orlando Florida 32801
Meridien Research - Tampa, 5411 Beaumont Center Boulevard, Suite 760 Tampa Florida 33634
ENT Associates of South Florida, 4631 North Congress Avenue, Suite 200 West Palm Beach Florida 33407
Clinical Research of Central Florida, 500 East Central Avenue Winter Haven Florida 33880
Synexus - Atlanta, 6065 Roswell Road, Suite 820 Atlanta Georgia 30328
Cedar Crosse Research Center, 800 South Wells Street, Suite M-15 Chicago Illinois 60607
Synexus - Clinical Research Advantage, Inc. - Allaw, 958C S. Kenmore Drive Evansville Indiana 47714
Central Kentucky Research Associates, Inc., 3475 Richmond Road, 3rd Floor Lexington Kentucky 40509
Tandem Clinical Research, LLC., 1111 Medical Center Boulevard, N513 Marrero Louisiana 70072
Synexus - Radiant Research, Inc., - Minneapolis, 7250 France Avenue South, Suite 417 Edina Minnesota 55435
StudyMetrix Research, LLC., 3862 Mexico Road City of Saint Peters Missouri 63303
Synexus - Radiant Research, Inc. - St. Louis, 675 Old Ballas Road, Suite 103 St Louis Missouri 63141
Synexus - Clinical Research Advantage, Inc. - Omaha, 11020 Prairie Brook Road Omaha Nebraska 68144
Synexus - Clinical Research Advantage, Inc. - Rita B. Chuang, MD, LLC., 2629 West Horizon Ridge Parkway, Suite 130 Henderson Nevada 89052
Hassman Research Institute, 175 Cross Keys Road, Suite 300B Berlin New Jersey 08009
Integrative Clinical Trials, 3288 Ocean Avenue, Unit # MO Brooklyn New York 11229
CNS Research Science, Inc., 80-15 164th Street Jamaica New York 11432
Aventiv Research, 99 North Brice Road, Suite 260 Columbus Ohio 43213
OK Clinical Research, LLC., 120 North Bryant Avenue, Suite A5 Edmond Oklahoma 73034
Summit Research Network Oregon, 2701 North West Vaughn Street, Suite 350 Portland Oregon 97210
Frontier Clinical Research, LLC., 100 Ridge View Drive, Unit 4 Smithfield Pennsylvania 15478
Coastal Carolina Research Center, 9279 Medical Plaza Drive, Suite B2 North Charleston South Carolina 29406
MR - ClinSearch, LLC., 6035 Shallowford Road, Suite 109 Chattanooga Tennessee 37421
Clinical Neuroscience Solutions, Inc., 6401 Poplar Avenue, Suite 420 Memphis Tennessee 38119
FutureSearch Trials of Neurology, 5508 Parkcrest Drive, Suite 300 Austin Texas 78731
Synexus - Clinical Research Advantage, Inc. - Plano Internal Medicine Associates, PA., 6300 West Parker Road, Suite 220 Plano Texas 75093
Synexus - Radiant Research, Inc. - Salt Lake City, 5251 South Green Street, Suite 300B Murray Utah 84123
National Clinical Research, Inc., 2809 Emerywood Parkway, Suite 140 Richmond Virginia 23294

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03557333, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 10, 2021 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03557333 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →