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AsthmaPhase 1NCT04987944

Safety and Efficacy Active Drug vs. Placebo in Subjects With Asthma

A Phase 1 study testing Zavegepant in people with Asthma, run by Pfizer at 10 sites in Canada.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study is a double-blind, parallel-group, randomized study of active drug vs placebo in asthma. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Asthma
What is being tested?
Zavegepant
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
45 participants
Where
10 sitesCanada
Study dates
18 Oct 2021to 4 Apr 2023
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects with Asthma

Who cannot join

  • -

Trial locations and contacts

10 sites in 1 country.

10 sites in 1 country

Canada10 sites
  • University of Calgary

    Calgary, Alberta, T2N 426

  • University of Calgary

    Calgary, Alberta, T2N 4Z6

  • University of Alberta Hospital

    Edmonton, Alberta, T6G 2B7

  • McMaster University

    Hamilton, Ontario, L8S 4K1

  • McMaster Universtiy

    Hamilton, Ontario, L8S 4K1

  • Institut universitaire en cardiologie et pneumologie de Quebec-Universite Laval-(IUCPQ-UL)

    Québec, Quebec, G1V 4G5

  • Institut universitaire en cardiologie et pneumologie de Quebec-Universite Laval-(IUCPQ-UL)

    Québec, G1V 4G5

  • University of Saskatchewan/Royal University Hospital

    Saskatoon, Saskatchewan, S7N 0W8

  • The Lung Centre- Vancouver General Hospital

    Vancouver, British Columbia, V5Z 1M9

  • The Lung Centre-Vancouver General Hospital

    Vancouver, British Columbia, V5Z 1M9

Other trials in Canada

About this study

Official title: A Phase 1b, Double-blind, Placebo-controlled, Parallel-group Study to Evaluate Safety and Efficacy of Oral Zavegepant in Subjects With Mild Allergic Asthma

This study is a double-blind, parallel-group, randomized study of active drug vs placebo in asthma.

Conditions
Asthma
Being tested
Zavegepant, Placebo
Keywords
Allergy, Asthma
Medical subject headings
Asthma, Hypersensitivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ZavegepantDrug

    Also called BHV3500

    150 mg BID

  • PlaceboDrug

    Placebo matching active drug

Study groups in NCT04987944
Study groupRoleWhat they receive
BHV3500ExperimentalZavegepant 150 mg BID
Receives: Drug: Zavegepant
PlaceboPlacebo comparatorMatching placebo 150 mg BID
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum Percentage Decrease From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Any Time Between 3 and 7 Hours Post-Allergen Challenge

    Allergen inhalation challenge was performed on Day 27 and FEV1 was measured using spirometry prior to the challenge and between 3 to 7 hours post allergen challenge to assess late asthmatic response (LAR). FEV1 was the maximal volume of air exhaled in 1 second of a forced expiration from a position of full inspiration. The maximum percentage decrease was the difference between the baseline (pre-allergen challenge) FEV1 on Day 27 and lowest FEV1 between hours 3 and 7 on Day 27 divided by the baseline value from Day 27. Analysis was performed using analysis of covariance (ANCOVA) model with treatment as main effect and baseline FEV1 as covariate.

    Measured: Baseline (pre-allergen challenge on Day 27) and anytime between 3 and 7 hours post-challenge on Day 27

Secondary outcomes (4)
  1. Maximum Percentage Decrease From Baseline in FEV1 at Any Time Between 0 and 2 Hours Post-Allergen Challenge

    Allergen inhalation challenge was performed on Day 27 and FEV1 was measured using spirometry prior to the challenge and between 0 to 2 hours post allergen challenge to assess early asthmatic response (EAR). FEV1 was the maximal volume of air exhaled in 1 second of a forced expiration from a position of full inspiration. The maximum percentage decrease was the difference between the baseline (pre-allergen challenge) FEV1 on Day 27 and lowest FEV1 between hours 0 and 2 on Day 27 divided by the baseline value from Day 27. Analysis was performed using ANCOVA model with treatment as main effect and baseline FEV1 as covariate.

    Measured: Baseline (pre-allergen challenge on Day 27) and anytime between 0 and 2 hours post-challenge on Day 27

  2. Change in Methacholine PC20 From Pre-Allergen Challenge to Post-Allergen Challenge

    Airway hyperresponsiveness was assessed using methacholine provocation concentration causing a 20% decline in FEV1 (PC20). Change in PC20 from pre-allergen to post-allergen = PC20 in post-allergen challenge minus PC20 in pre-allergen challenge. Shift in PC20 was calculated as post-allergen challenge minus pre-allergen challenge (Day 28 minus Day 26), and baseline shift in PC20 was calculated as post-allergen challenge minus pre-allergen challenge (Day -13 minus Day-15). Analysis was performed using ANCOVA model with treatment as main effect and baseline shift as covariate.

    Measured: From Day -15 to Day 28

  3. Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

    An adverse event (AE) was any untoward medical occurrence or worsening of a pre-existing medical condition in a clinical investigation participant administered an investigational (medicinal) product and that did not necessarily have a causal relationship with this treatment. An SAE was defined as any adverse event that, at any dose: resulted in death; required inpatient hospitalization or prolongation of existing hospitalization; life-threatening; resulted in persistent or significant disability/incapacity; congenital anomaly/birth defect or other important medical events. TEAEs were events with onset dates on or after the start of the study drug.

    Measured: From start of treatment on Day 1 up to Day 41

  4. Number of Participants With Clinically Significant Laboratory Test Abnormalities on Treatment

    The following laboratory parameters were assessed: hematology (eosinophils, hemoglobin, leukocytes, lymphocytes, neutrophils and platelets), chemistry (Albumin, alanine aminotransferase [ALT], alkaline phosphatase [ALP], aspartate aminotransferase [AST], bicarbonate, bilirubin, calcium, cholesterol, creatine kinase, creatinine, glucose, low-density lipoproteins [LDL], lactate dehydrogenase, potassium, sodium, triglycerides) and urinalysis (urine glucose and urine protein). Clinically significant laboratory test abnormalities were Grade 3 (severe) to Grade 4 (potentially life-threatening) laboratory test results graded according to Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 except for glucose, LDL cholesterol, uric acid and urinalysis which were graded using Division of Aids (DAIDS) Version 2.1 where, Grade 3=severe and Grade 4=potentially life-threatening. Number of participants with clinically significant abnormalities in any laboratory parameter is presented.

    Measured: From start of treatment on Day 1 to Day 28

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Aug 2021
  2. Study start18 Oct 2021
  3. Primary completion29 Mar 2023
  4. Study completion4 Apr 2023

Why it stopped: Strategic decision to discontinue the study based on adjusted clinical development plan. This decision is not based on any safety concerns.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Single blind
Who is masked
Investigator
Enrolment
45 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04987944
Sponsor's protocol ID
BHV3500-204
Other IDs
C5301005
Status last verified
Feb 2024
First submitted
26 Jul 2021
Last updated
19 Jul 2024
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Zavegepant in people with Asthma, run by Pfizer at 10 sites in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 19 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 Jul 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximum Percentage Decrease From Baseline in Forced Expiratory Volume in 1 Second (FEV1) at Any Time Between 3 and 7 Hours Post-Allergen Challenge (time frame: Baseline (pre-allergen challenge on Day 27) and anytime between 3 and 7 hours post-challenge on Day 27). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Jul 2024.

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