A Study to Compare the Relative Potency of Salbutamol Administered Via Metered Dose Inhalers (MDI… (NCT06433921) | Clinical Trial Compass
RecruitingPhase 1
A Study to Compare the Relative Potency of Salbutamol Administered Via Metered Dose Inhalers (MDI) Containing Propellants HFA-152a to HFA-134a in Mild Asthmatics Aged 18 to 65 Inclusive
United Kingdom84 participantsStarted 2024-08-14
Plain-language summary
The primary objectives of the study are: Part 1: to characterize the potency and variability of dose response on efficacy (Provocative concentration of methacholine causing at least a 20% fall in forced expiratory volume (FEV1) \[PC20\]) of salbutamol administered via MDI with salbutamol HFA-134a or salbutamol HFA-152a in participants with mild asthma. Part 2: to compare the comparative dose response on efficacy (PC20) of salbutamol when administered via MDI with salbutamol HFA-134a or salbutamol HFA-152a in participants with mild asthma.
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Male or female; females may be of childbearing potential, of nonchildbearing potential, or postmenopausal.
. Participant must be 18 to 65 years of age inclusive, at the time of screening.
. ≥50 kg, at the time of screening.
. Body mass index (BMI) with 19.0-35.0 kg/m2 inclusive, at the time of screening.
Exclusion criteria
. Medical Conditions
. A history of life-threatening asthma or asthma that is unstable in the opinion of the investigator.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Part 1 & Part 2: Provocative concentration of methacholine causing at least a 20% fall in FEV1 (PC20)
. A history of respiratory diseases to include (but not limited to): pneumothorax, pulmonary fibrotic disease, bronchopulmonary dysplasia, chronic bronchitis, cystic fibrosis, bronchiectasis, interstitial lung disease, emphysema, chronic obstructive pulmonary disease, tuberculosis, or other respiratory abnormalities other than asthma.
. Asymptomatic gallstones.
. History or current evidence of hematologic, neurologic, psychiatric, or other diseases that, in the opinion of the investigator, would put the participant at risk through study participation, or would affect the study analyses if the disease exacerbates during the study.
. Recent eye surgery or any other condition in which raised intracranial pressure (caused by forceful exhalation) would be harmful.
. Current use of cholinesterase inhibitor medication e.g., to treat myasthenia gravis.
. Exposure to more than 4 new chemical entities within 12 months prior to the first dosing day or participation in a clinical study within 30 days of study start, or 5 half-lives of study drug if that is longer.