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A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate STS101 in the Acute Treatment of Migraine

EMERGE: A Randomized, Double-Blind, Parallel Group, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy, Safety, and Tolerability of Single Doses of STS101 (Dihydroergotamine Nasal Powder) in the Acute Treatment of Migraine

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03901482
Acronym
EMERGE
Enrollment
1201
Registered
2019-04-03
Start date
2019-06-24
Completion date
2020-08-13
Last updated
2023-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Migraine, Migraine With Aura, Migraine Without Aura

Keywords

dihydroergotamine, dihydroergotamine mesylate, migraine

Brief summary

Study STS101-002 is a randomized, double-blind, parallel group, placebo-controlled, multicenter study to evaluate the efficacy, safety, and tolerability of single doses of STS101 (dihydroergotamine nasal powder) in the acute treatment of migraine

Detailed description

The EMERGE trial is a multi-center, single-dose, randomized, double-blind, placebo-controlled, parallel group study in subjects with acute migraine (ages 18 to 65 years).

Interventions

Dihydroergotamine is a semi-synthetic derivative of ergotamine tartrate.

DRUGPlacebos

Placebo for STS101

Sponsors

Satsuma Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Males or females, 18-65 years of age at the time of Screening Visit * Subject has at least 1-year history of migraines (with or without aura), according to the International Classification of Headache Disorder, 3rd Edition (ICHD3)

Exclusion criteria

* Pregnant or breast-feeding women * Women of child-bearing potential not using or not willing to use highly effective contraception. * Diagnosis of headache conditions other than migraine with or without aura, including diagnosis of basilar or hemiplegic migraines or cluster headache. * History of coronary artery disease, coronary artery vasospasm (including Printz-metals' angina), clinically significant arrhythmia or, peripheral vascular disease, ischemic disease (e.g. Raynaud's syndrome, ischemic bowel syndrome, angina pectoris, myocardial infarction, or documented silent ischemia); percutaneous coronary intervention, or cardiac surgery. * History of cerebrovascular disease, including but not limited to stroke, transient ischemic attack, cerebral hemorrhage, subarachnoid hemorrhage. * Diagnosis of major depression with current symptoms, psychosis, alcohol abuse or dependence, drug abuse or dependence, major psychiatric conditions (e.g. schizophrenia, psychosis or Bipolar disorder), dementia. Other significant neurological or psychiatric disorders (including other pain syndromes or risk of suicide) that in the opinion of the investigator might interfere with study participation and assessments or subject safety. * Any clinically significant symptoms or conditions, including but not limited to central nervous system (e.g., seizures), cardiac, pulmonary, metabolic, renal, hepatic or gastrointestinal conditions or history of such conditions that, in the opinion of the investigator might interfere with study assessments or safety of participant.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Subjects With Freedom From Migraine Headache Pain at 2 Hours Post Dose2 Hours Post-DoseThe subject's rating was documented on a four-point scale from no pain (= 0), mild pain (= 1), moderate pain (= 2) to severe pain (= 3). Pain freedom means the pain went from moderate (2) or severe (3) to no pain (0).
Percentage of Subjects With Freedom From Most-Bothersome Symptom at 2 Hours Post Dose2 Hours Post-DoseSubjects were prompted to document the presence of 3 symptoms (photophobia, phonophobia, and nausea) immediately before study drug administration and during the treated migraine attack.

Secondary

MeasureTime frameDescription
Percentage of Subjects With Relief From Migraine Headache Pain at 2 Hours Post Dose2 Hours Post DoseThe subject's rating was documented on a four-point scale from no pain (= 0), mild pain (= 1), moderate pain (= 2) to severe pain (= 3). Pain relief means the pain went from moderate (2) or severe (3) to mild pain (1) or no pain (0).

Countries

United States

Participant flow

Recruitment details

The study was conducted at 119 sites in the United States.

Pre-assignment details

A total of 1201 participants were randomized in the study, of which 1065 reported a qualifying migraine attack, received study drug, and reported a post-dose efficacy evaluation for at least one time point at or before the 2-hour timepoint (mITT population).

Participants by arm

ArmCount
STS101 Low Dose
Subjects received a single oral dose of STS101 (dihydroergotamine nasal powder) 3.9 mg.
363
STS101 High Dose
Subjects received a single oral dose of STS101 (dihydroergotamine nasal powder) 5.2 mg.
367
STS101 Placebo
Subjects received a single oral dose of Placebo for STS101 (dihydroergotamine nasal powder).
363
Total1,093

Baseline characteristics

CharacteristicSTS101 Low DoseSTS101 High DoseSTS101 PlaceboTotal
Age, Customized
Age Group (n (%))
18-35 years
123 Participants117 Participants122 Participants362 Participants
Age, Customized
Age Group (n (%))
>30-50 years
164 Participants186 Participants176 Participants526 Participants
Age, Customized
Age Group (n (%))
>50-65 years
76 Participants64 Participants65 Participants205 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants1 Participants3 Participants7 Participants
Race (NIH/OMB)
Asian
6 Participants12 Participants13 Participants31 Participants
Race (NIH/OMB)
Black or African American
55 Participants60 Participants41 Participants156 Participants
Race (NIH/OMB)
More than one race
NA ParticipantsNA ParticipantsNA ParticipantsNA Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants1 Participants1 Participants4 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants1 Participants1 Participants6 Participants
Race (NIH/OMB)
White
293 Participants292 Participants304 Participants889 Participants
Region of Enrollment
United States
363 participants367 participants363 participants1093 participants
Sex: Female, Male
Female
318 Participants320 Participants317 Participants955 Participants
Sex: Female, Male
Male
45 Participants47 Participants46 Participants138 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 3630 / 3670 / 363
other
Total, other adverse events
49 / 36352 / 36719 / 363
serious
Total, serious adverse events
0 / 3631 / 3670 / 363

Outcome results

Primary

Percentage of Subjects With Freedom From Migraine Headache Pain at 2 Hours Post Dose

The subject's rating was documented on a four-point scale from no pain (= 0), mild pain (= 1), moderate pain (= 2) to severe pain (= 3). Pain freedom means the pain went from moderate (2) or severe (3) to no pain (0).

Time frame: 2 Hours Post-Dose

Population: The analysis was performed on the mITT population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STS101 Low DosePercentage of Subjects With Freedom From Migraine Headache Pain at 2 Hours Post Dose69 Participants
STS101 High DosePercentage of Subjects With Freedom From Migraine Headache Pain at 2 Hours Post Dose68 Participants
STS101 PlaceboPercentage of Subjects With Freedom From Migraine Headache Pain at 2 Hours Post Dose53 Participants
Primary

Percentage of Subjects With Freedom From Most-Bothersome Symptom at 2 Hours Post Dose

Subjects were prompted to document the presence of 3 symptoms (photophobia, phonophobia, and nausea) immediately before study drug administration and during the treated migraine attack.

Time frame: 2 Hours Post-Dose

Population: This analysis was conducted on the mITT population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STS101 Low DosePercentage of Subjects With Freedom From Most-Bothersome Symptom at 2 Hours Post Dose133 Participants
STS101 High DosePercentage of Subjects With Freedom From Most-Bothersome Symptom at 2 Hours Post Dose139 Participants
STS101 PlaceboPercentage of Subjects With Freedom From Most-Bothersome Symptom at 2 Hours Post Dose119 Participants
Secondary

Percentage of Subjects With Relief From Migraine Headache Pain at 2 Hours Post Dose

The subject's rating was documented on a four-point scale from no pain (= 0), mild pain (= 1), moderate pain (= 2) to severe pain (= 3). Pain relief means the pain went from moderate (2) or severe (3) to mild pain (1) or no pain (0).

Time frame: 2 Hours Post Dose

Population: This analysis was conducted on the mITT population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
STS101 Low DosePercentage of Subjects With Relief From Migraine Headache Pain at 2 Hours Post Dose180 Participants
STS101 High DosePercentage of Subjects With Relief From Migraine Headache Pain at 2 Hours Post Dose177 Participants
STS101 PlaceboPercentage of Subjects With Relief From Migraine Headache Pain at 2 Hours Post Dose166 Participants

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026