Phase 3 Asthma Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People aged 12 or older at the time of signing the consent form (in some countries, only adults aged 18 or older may be eligible, depending on local rules).
- People who have had a formal asthma diagnosis from a doctor for at least 2 years, confirmed according to recognised medical guidelines.
- People who have had at least 2 asthma attacks (exacerbations) in the past 3 years, with at least 1 occurring in the past year — where each attack required steroid treatment for at least 3 days, despite already using a combination inhaler (low to medium dose).
- People who have been using a low to medium dose combination inhaler (ICS/LABA) for at least 12 months, with no changes to that treatment in the 3 months before screening.
- Women who are not pregnant or breastfeeding, and who either cannot become pregnant or are using a highly effective form of contraception (with a failure rate below 1%) starting at least 14 days before the first dose and continuing for at least 35 weeks after the last dose (confirm specific contraceptive requirements with the trial site).
- Women of childbearing potential who have a negative pregnancy test at specific visits as required by the trial.
- People who show signs of a specific type of asthma (called "Type 2 high") based on blood test results showing elevated eosinophil levels (a type of immune cell), with specific thresholds that the trial site will assess — or elevated eosinophils at a lower level combined with either a high exhaled nitric oxide reading or a confirmed diagnosis of nasal polyps.
- People who are able to give informed consent and are willing to follow the trial requirements.
Who may not be able to join:
- People who have had 3 or more asthma attacks in the past year before the first visit.
- People who are currently taking daily oral steroids or high-dose combination inhalers for asthma.
- People who have had asthma for more than 20 years.
- People who have another significant lung condition in addition to asthma, such as bronchiectasis, pulmonary fibrosis, a current lung infection, lung cancer history, emphysema, or chronic bronchitis.
- People who have other conditions that can cause elevated eosinophil levels in the blood, such as Eosinophilic Granulomatosis with Polyangiitis or eosinophilic esophagitis.
- People who had an asthma attack within 4 weeks before screening.
- People who have had a parasitic infection within the 6 months before screening, unless it has been fully treated and resolved.
- People with a known immune system deficiency, such as HIV (unless the immune issue is solely related to steroid use for asthma).
- People who currently have cancer, or whose cancer has been in remission for less than 12 months before screening.
- People with significant uncontrolled conditions affecting the heart, kidneys, liver, nervous system, digestive system, blood, hormones, or other body systems.
- People who currently have a diagnosis of vasculitis (inflammation of blood vessels).
- People who have previously received any approved or investigational biologic treatment (a type of medication made from living cells, including monoclonal antibodies).
- People with a history of alcohol misuse or substance abuse within the 2 years before starting the trial.
- People who currently smoke, people who vape, or former smokers with a heavy smoking history (20 pack-years or more — calculated by the trial site).
- People with a known allergy or intolerance to biologic medicines or to any ingredient in the study drug (depemokimab).
- People who are pregnant or breastfeeding.
- People who have a known history of not following prescribed asthma treatment or medical advice.
- People whose blood tests, urine tests, or other screening results show clinically significant abnormalities, as assessed by the trial doctor.
- People with certain liver test results above specified thresholds (including elevated ALT or bilirubin levels), or those with cirrhosis or unstable liver or bile duct disease — specific thresholds will be assessed by the trial site (confirm with trial site if Gilbert's syndrome applies).
- People whose heart trace (ECG) shows certain abnormalities in electrical timing, assessed using a specific measurement called QTcF — thresholds will be evaluated by the trial site.
- People whose asthma medication dose or routine changed during the lead-in period before randomisation.
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: GSK Clinical Trials, GlaxoSmithKline
Phone: 877-379-3718
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Annualized rate of clinically significant exacerbations
Can't join this trial?
Data last synced from ClinicalTrials.gov: 27 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.