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Long-term Safety Study of BHV-3500 (Zavegepant*) for the Acute Treatment of Migraine

A Phase 2/3 Open-label, Long-Term, Safety Trial of BHV3500 (Zavegepant*) Intranasal (IN) for the Acute Treatment of Migraine

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04408794
Enrollment
974
Registered
2020-05-29
Start date
2020-06-29
Completion date
2021-12-23
Last updated
2023-05-18

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

Conditions

Acute Migraine

Keywords

migraine, headache, intranasal

Brief summary

The purpose of this study is to evaluate the long-term safety of BHV-3500/vazegepant intranasal in the acute treatment of migraine. \* BHV-3500, formerly vazegepant, is now referred to as zavegepant (za ve' je pant). The World Health Organization (WHO) International Nonproprietary Names (INN) Expert Committee revised the name to zavegepant which was accepted by the United States Adopted Names (USAN ) Council for use in the U.S. and is pending formal adoption by the INN for international use.

Interventions

10 mg IN up to 8 times per month, up to 1 year

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* 2-8 moderate to severe migraines/month within the last 3 months * Migraine attacks present for more than 1 year with age of onset of migraines prior to 50 years of age * Migraine attacks, on average, lasting about 4-72 hours if untreated * Less than 15 days with headaches (migraine or non-migraine) per month in each of the 3 months prior to the screening visit * Ability to distinguish migraine attacks from tension/cluster headaches * Participants with contraindications for use of triptans may be included provided they meet all other study entry criteria

Exclusion criteria

* History of human immunodeficiency virus disease * History of basilar or hemiplegic migraine * Current diagnosis of major depressive disorder requiring treatment with atypical antipsychotics, schizophrenia, bipolar disorder, or borderline personality disorder * History of nasal surgery in the 6 months preceding the screening visit * History of gallstones or cholecystectomy * History of gastric, or small intestinal surgery (including gastric bypass, gastric banding, gastric sleeve, gastric balloon, etcetera), or other disease or condition (for example, chronic pancreatitis, ulcerative colitis, etcetera) that causes malabsorption. * Body mass index ≥ 33 * Hemoglobin A1c ≥6.5%

Design outcomes

Primary

MeasureTime frameDescription
Number Of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and AEs Leading To DiscontinuationFrom study drug dosing up to the end of the study (up to 52 weeks)An AE is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition in participants or clinical investigation participants administered an investigational (medicinal) product that does not necessarily have a causal relationship with this treatment. An SAE was defined as any event that met any of the following criteria at any dose: death; life-threatening; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant disability/incapacity; congenital anomaly/birth defect in the offspring of a participant who received study drug; other important medical events that may not have resulted in death, be life-threatening, or required hospitalization, based upon appropriate medical judgment, they may have jeopardized the participant and may have required medical or surgical intervention to prevent one of the other serious outcomes.
Number Of Participants With Clinically Significant Laboratory AbnormalitiesFrom study drug dosing up to the end of the study (up to 52 weeks)Clinically significant laboratory abnormalities were defined as Grades 3 to 4 laboratory test results according to numeric laboratory test criteria found in Common Technical Criteria for Adverse Events Version 5.0 (2017) if available; otherwise, according to Division of Acquired Immune Deficiency Syndrome. Table for Grading the Severity of Adult and Pediatric Adverse Events Corrected Version 2.1 (2017) for glucose, low-density lipoprotein (LDL)-cholesterol, uric acid, and urinalysis. Laboratory test groups of clinical interest included hematology, serum chemistry, and urinalysis. Participants must have had a non-missing measurement in to be included for a given parameter. Laboratory results were presented in US units.

Countries

United States

Participant flow

Recruitment details

The study was conducted at 63 sites in the United States.

Pre-assignment details

A total of 974 participants were enrolled for this open-label study, of which 900 participants entered the observational phase (OP) and 608 participants entered the long-term treatment (LTT) phase, of whom 603 participants received treatment with zavegepant. A total of 286 participants failed to enter the LTT phase after the OP due to failure to meet inclusion/exclusion criteria.

Participants by arm

ArmCount
Zavegepant 10 mg
Participants self-administered zavegepant 10 mg nasal spray, taken up to 8 times per month (28 days), for up to 52 weeks. The dose was self-administered using an Aptar UDS liquid spray device.
603
Total603

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event43
Overall StudyInfrequent study drug usage43
Overall StudyLack of Efficacy61
Overall StudyLost to Follow-up33
Overall StudyNever Treated Migraine5
Overall StudyNon-compliance6
Overall StudyPhysician Decision1
Overall StudyPregnancy6
Overall StudyProtocol Deviation9
Overall StudySheehan-STS Result1
Overall StudyTerminated study prematurely due to COVID-19 - Adverse Event2
Overall StudyWithdrawal by Subject57

Baseline characteristics

CharacteristicZavegepant 10 mg
Age, Continuous42.1 years
STANDARD_DEVIATION 12.46
Ethnicity (NIH/OMB)
Hispanic or Latino
71 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
532 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
Race (NIH/OMB)
Asian
23 Participants
Race (NIH/OMB)
Black or African American
70 Participants
Race (NIH/OMB)
More than one race
4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
502 Participants
Sex: Female, Male
Female
517 Participants
Sex: Female, Male
Male
86 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 603
other
Total, other adverse events
336 / 603
serious
Total, serious adverse events
7 / 603

Outcome results

Primary

Number Of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and AEs Leading To Discontinuation

An AE is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition in participants or clinical investigation participants administered an investigational (medicinal) product that does not necessarily have a causal relationship with this treatment. An SAE was defined as any event that met any of the following criteria at any dose: death; life-threatening; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant disability/incapacity; congenital anomaly/birth defect in the offspring of a participant who received study drug; other important medical events that may not have resulted in death, be life-threatening, or required hospitalization, based upon appropriate medical judgment, they may have jeopardized the participant and may have required medical or surgical intervention to prevent one of the other serious outcomes.

Time frame: From study drug dosing up to the end of the study (up to 52 weeks)

Population: Safety analysis set included participants in the enrolled analysis set who took the study drug, that is, non-missing study drug start date/time.

ArmMeasureGroupValue (NUMBER)
Zavegepant 10 mgNumber Of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and AEs Leading To DiscontinuationAEs460 Participants
Zavegepant 10 mgNumber Of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and AEs Leading To DiscontinuationSAEs7 Participants
Zavegepant 10 mgNumber Of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and AEs Leading To DiscontinuationAEs leading to discontinuation41 Participants
Primary

Number Of Participants With Clinically Significant Laboratory Abnormalities

Clinically significant laboratory abnormalities were defined as Grades 3 to 4 laboratory test results according to numeric laboratory test criteria found in Common Technical Criteria for Adverse Events Version 5.0 (2017) if available; otherwise, according to Division of Acquired Immune Deficiency Syndrome. Table for Grading the Severity of Adult and Pediatric Adverse Events Corrected Version 2.1 (2017) for glucose, low-density lipoprotein (LDL)-cholesterol, uric acid, and urinalysis. Laboratory test groups of clinical interest included hematology, serum chemistry, and urinalysis. Participants must have had a non-missing measurement in to be included for a given parameter. Laboratory results were presented in US units.

Time frame: From study drug dosing up to the end of the study (up to 52 weeks)

Population: Safety analysis set included participants in the enrolled analysis set who took the study drug, that is, non-missing study drug start date/time.

ArmMeasureGroupValue (NUMBER)
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesAlanine Aminotransferase3 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesUric Acid0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesEosinophils0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesHemoglobin0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesLymphocytes, low0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesAlbumin0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesAspartate Aminotransferase5 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesAlkaline Phosphatase0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesBicarbonate0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesBiliburin0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesCalcium, low0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesCalcium, high0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesCholesterol0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesCreatine Kinase (All Methods)13 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesCreatine Kinase13 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesCreatinine0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesGlomerular Filtration Rate, Estimated0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesLDL-cholesterol21 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesLDL-cholesterol, fasting6 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesLDL-cholesterol, not fasting15 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesLactate Dehydrogenase0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesPotassium, low0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesPotassium, high1 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesSodium, low0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesSodium, high0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesTriglycerides1 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesTriglycerides, fasting0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesTriglycerides, not fasting1 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesLymphocytes, high0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesNeutrophils2 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesPlatelets0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesWhite Blood Cells0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesQualitative Glucose0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesQualitative Protein0 Participants
Zavegepant 10 mgNumber Of Participants With Clinically Significant Laboratory AbnormalitiesUrine Erythrocytes0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026