FLASH: Study to Assess the Efficacy and Safety of AZD5718 in Moderate-to-Severe Uncontrolled Asthma

Sponsor
AstraZeneca (Industry)
Overall Status
Recruiting
CT.gov ID
NCT05251259
Collaborator
(none)
1,900
177
7
24.4
10.7
0.4

Study Details

Study Description

Brief Summary

This is a randomised, placebo-controlled, double-blind study with an active comparator (montelukast) arm to assess the efficacy and safety of AZD5718 administered at multiple dose levels over a 12-week treatment period to adult participants with moderate-to-severe uncontrolled asthma.

Condition or Disease Intervention/Treatment Phase
Phase 2

Detailed Description

The study will enroll participants with moderate-to-severe uncontrolled asthma who are on low-dose inhaled corticosteroid (ICS) - a long-acting beta-agonist (LABA) or medium-to-high-dose ICS with or without LABA background treatment.

The study will be performed as a 2-part study Part 1 and Part 2 with a Lead-in pharmacokinetics (PK) cohort.

In the Lead-in PK cohort, participants will be randomised to AZD5718 or placebo.

In Part 1 of the study, participants will be randomised 1:1 to AZD5718 or placebo.

In Part 2 of the study, participants will be randomised to 1 of 5 treatment groups (AZD5718:

Dose A, B, C, montelukast or placebo).

Study Design

Study Type:
Interventional
Anticipated Enrollment :
1900 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
A Phase 2, Randomised, Double-Blind, Placebo and Active Comparator-Controlled Study to Assess Efficacy and Safety of Multiple Dose Levels of AZD5718 Given Orally Once Daily for Twelve Weeks in Adults With Moderate-to-Severe Uncontrolled Asthma
Actual Study Start Date :
Jan 27, 2022
Anticipated Primary Completion Date :
Feb 8, 2024
Anticipated Study Completion Date :
Feb 8, 2024

Arms and Interventions

Arm Intervention/Treatment
Experimental: Lead-in PK Cohort (AZD5718 Dose A)

Randomized participants will receive AZD5718 dose A

Drug: AZD5718
Randomized participants will receive AZD5718

Experimental: Part 1: AZD5718 Dose A

Randomised participants will receive AZD5718 Dose A

Drug: AZD5718
Randomized participants will receive AZD5718

Experimental: Part 2: AZD5718 Dose A

Randomised participants will receive AZD5718 Dose A

Drug: AZD5718
Randomized participants will receive AZD5718

Experimental: Part 2: AZD5718 Dose B

Randomised participants will receive AZD5718 Dose B

Drug: AZD5718
Randomized participants will receive AZD5718

Experimental: Part 2: AZD5718 Dose C

Randomised participants will receive AZD5718 Dose C

Drug: AZD5718
Randomized participants will receive AZD5718

Active Comparator: Part 2: Montelukast Dose X

Participants will receive montelukast dose X

Drug: Montelukast
Randomized participants will receive montelukast

Placebo Comparator: Lead-in PK, Part 1 and Part 2 Placebo

Randomized participants will receive placebo

Drug: Placebo
Randomized participants will receive placebo

Outcome Measures

Primary Outcome Measures

  1. Time to first CompEx Asthma event (Composite endpoint for Exacerbations) [Baseline up to Week 12]

    The clinical efficacy of AZD5718 Dose A will be assessed by calculating a Hazard Ratio between the following treatment arms: a) AZD5718 Dose A vs. placebo; b) AZD5718 Dose A vs. Montelukast. CompEx Asthma, a novel composite endpoint for exacerbations, captures asthma-worsening episodes based on a combination of diary events (worsening in daily PEF, asthma symptoms and reliever medication use) plus severe asthma exacerbation events.

Secondary Outcome Measures

  1. Time to first CompEx Asthma event (Composite endpoint for Exacerbations) [Baseline up to Week 12]

    The clinical efficacy of AZD5718 Dose A will be identified using the Hazard Ratio of AZD5718 Dose A vs. placebo.

  2. Time to first CompEx Asthma event (Composite endpoint for Exacerbations) [Baseline up to Week 12]

    The clinical efficacy of AZD5718 at different dose levels compared to placebo will be assessed by calculating a Hazard Ratio between the following treatment arms: a) AZD5718 Dose A compared to placebo; b) AZD5718 Dose B compared to placebo; c) AZD5718 Dose C compared to placebo

  3. Time to first CompEx Asthma event (Composite endpoint for Exacerbations) [Baseline up to Week 12]

    The clinical efficacy of AZD5718 Dose A will be assessed by calculating the Hazard Ratio of AZD5718 Dose A vs. placebo.

  4. Change from baseline in Pre-bronchodilator forced expiratory volume in 1 second [Baseline, Week 4 and Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to montelukast in adult participants with moderate-to-severe uncontrolled asthma

  5. Change from baseline in St. George's Respiratory Questionnaire [Baseline, Week 4 and Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to Montelukast in adult participants with moderate-to-severe uncontrolled asthma. The St. George's Respiratory Questionnaire (SGRQ) is a 50-item PRO instrument to measure the health status of participants with airway obstruction diseases. The questionnaire is divided into two parts: part one consists of 8 items pertaining to the severity of respiratory symptoms in the preceding 4 weeks; part 2 consists of 42 items related to the daily activity and psychosocial impacts of the individual's respiratory condition. The SGRQ yields a total score and three domain scores (symptoms, activity, and impacts). The total score indicates the impact of disease on overall health status. This total score is expressed as a percentage of overall impairment, in which 100 represents the worst possible health status and 0 indicates the best possible health status.

  6. Change from baseline in Asthma Control Questionnaire 6 [Baseline Week 4, Week 8, Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to Montelukast in adult participants with moderate-to-severe uncontrolled asthma. The Asthma Control Questionnaire 6 (ACQ-6) has 6 questions (the top scoring 5 symptoms and daily rescue bronchodilator use). The symptom and bronchodilator use questions on a 7-point scale (0 = no impairment, 6 = maximum impairment). Score 0 means totally controlled and 6 reflects severely uncontrolled.

  7. Change from baseline in average morning and evening Peak Flow Measurement [Baseline Week 4, Week 8, Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to Montelukast in adult participants with moderate-to-severe uncontrolled asthma.

  8. Change from baseline in Daily asthma symptom score (total, daytime, and night-time) [Baseline Week 4, Week 8, Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to Montelukast in adult participants with moderate-to-severe uncontrolled asthma. Asthma symptom scores during night-time and day-time will be assessed by the participant each morning and evening according to the following scoring system: (0) You have no asthma symptoms; (1): You are aware of your asthma symptoms, but you can easily tolerate the symptoms; (2): Your asthma is causing you enough discomfort to cause problems with normal activities (or with sleep); (3): You are unable to do your normal activities (or to sleep) because of your asthma. Here, low score reflects no asthma symptoms and high score suggests severe or frequent symptoms.

  9. Time to first severe asthma exacerbation [Baseline up to Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to montelukast in adult participants with moderate-to-severe uncontrolled asthma.

  10. Event status (CompEx Asthma event yes/no) [Baseline up to Week 12]

    To evaluate the clinical efficacy of AZD5718 as compared to placebo and as compared to Montelukast in adult participants with moderate-to-severe uncontrolled asthma.

  11. Lead-in PK: Area under the curve (AUC) [Day 1 and Day 15]

    PK parameter of AZD5718 will be assessed. Participants will be randomised to AZD5718 Dose A in the Lead-in PK Cohort.

  12. Lead-in PK: Maximum (or peak) serum concentration (Cmax) [Day 1 and Day 15]

    PK parameter of AZD5718 will be assessed. Participants will be randomised to AZD5718 Dose A in the Lead-in PK Cohort.

  13. Lead-in PK cohort: Pre-dose trough concentration (Ctrough) [Day 15]

    PK parameter of AZD5718 will be assessed. Participants will be randomised to AZD5718 Dose A in the Lead-in PK Cohort.

  14. AZD5718 plasma concentrations in a subset of participants, post-dose samples [Week 4]

    To summarise AZD5718 post-dose plasma concentrations.

  15. AZD5718 plasma concentrations in all participants, pre-dose samples [Baseline, Week 4 and Week 12]

    To summarise AZD5718 pre-dose plasma concentrations.

  16. Number of participants with adverse events (AEs) [Baseline up to Week 12]

    To assess the safety and tolerability of AZD5718 in adult participants with moderate-to-severe uncontrolled asthma.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 80 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No

Inclusion Criteria

Lead-in PK Cohort:
  • 18 to 55 years of age inclusive at the time of signing the informed consent at Visit
  • Bodyweight 50 to 100 kg (inclusive) and BMI 18 to 30 kg/m^2 (inclusive) at Visit 1.

  • Documented asthma diagnosis ≥ 12 months prior to Visit 1.

  • Able to perform acceptable lung function testing for FEV1 according to American Thoracic Society / European Respiratory Society (ATS/ERS) 2019 acceptability criteria.

  • Morning pre- bronchodilator (BD) forced expiratory volume (FEV)1 ≥ 70% predicted at Visit 1 and Visit 2.

  • Treated with low dose inhaled corticosteroid plus long-acting β2-agonist (ICS-LABA) or medium-high dose ICS alone or in combination with LABA at a stable dose for at least 3 months prior to Visit 1. Also, treatment with additional asthma controller therapies (eg, LAMA) at a stable dose ≥ 3 months prior to Visit 1 is allowed.

  • Participant's influenza/pneumonia vaccination is up to date as per local guidelines prior to Visit 2.

Part 1 and Part 2: Specific Inclusion Criteria for Pre-Screening:
  • Participant must be 18 to 80 years of age inclusive at the time of signing the informed consent

  • Treated with low dose ICS-LABA or medium-high dose ICS alone or in combination with LABA at a stable dose for at least 3 months prior to Visit 1.

  • Documented history of ≥ 1 severe asthma exacerbation within 12 months prior to Visit

  • Morning pre-BD FEV1 between ≥ 40% and ≤ 80% predicted at Visit 0.

  • Able to perform acceptable lung function testing for FEV1 according to ATS/ERS 2019 acceptability criteria.

Specific Biomarker Inclusion Criteria for Part 1:
  • Test for prospective biomarkers will be performed at visit 0 or 1.
General Inclusion Criteria for Part 1 and Part 2:
  • Body weight ≥ 40 kg and body mass index (BMI) < 35 kg/m^2.

  • Documented physician-diagnosed asthma ≥ 12 months prior to Visit 1.

  • Able to perform acceptable lung function testing for FEV1 according to ATS/ERS 2019 acceptability criteria.

  • Morning pre-BD FEV1 between ≥ 40% and ≤ 80% predicted at Visit 1 and at Visit 3.

  • An Asthma Control Questionnaire (ACQ)-6 score ≥ 1.5 at Visit 1 and at Visit 3.

  • Participant's influenza/pneumonia vaccination is up to date as per local guidelines prior to Visit 2.

Additional Specific Criteria for Visit 3 (randomisation):
  • Pre-bronchodilator FEV1 between ≥ 40% and ≤ 80% predicted.

  • ACQ-6 score of ≥ 1.5.

  • At least 80% compliance with usual asthma background medication during run-in period (from Visit 2 to Visit 3) based on the daily asthma electronic patient-reported outcome (ePROs).

Exclusion Criteria

  • A severe asthma exacerbation within 8 weeks of randomisation.

  • A positive nucleic acid test (eg Real Time-Polymerase Chain Reaction) at Visit 1 or at Visit 3 for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for Coronavirus disease 2019 (COVID-19).

  • Participants with a significant COVID-19 illness within 6 months of enrolment.

  • Clinically important pulmonary disease other than asthma.

  • Galactose intolerance, Lapp lactase deficiency, or glucose-galactose metabolism.

  • Any disorder, including, but not limited to, cardiovascular, gastrointestinal, hepatic, renal, neurological, musculoskeletal, infectious, endocrine, metabolic, haematological, psychiatric, or major physical impairment that is not stable.

  • Any clinically significant cardiac disease.

  • History of severe renal disease or history of creatinine clearance < 30 mL/min × m2 calculated using Cockcroft-Gault equation.

  • Severe hepatic impairment (Child-Pugh class C).

  • Previous hepatotoxicity related to zileuton or leukotriene receptor antagonist (LTRAs) (eg montelukast).

  • Participants with a recent history of, or who have a positive test for, infective hepatitis or unexplained jaundice, or participants who have been treated for hepatitis B, hepatitis C, or human immunodeficiency virus (HIV).

  • Evidence of active or untreated latent tuberculosis (TB).

  • History of or current alcohol or drug abuse (including marijuana).

  • Current diagnosis of cancer, not including in-situ or non-melanoma skin cancer or other previous malignancies where curative therapy was completed at least 5 years prior to Visit 1.

  • Clinically important ongoing or previous psychiatric disease, especially suicidal behaviour, that in the opinion of the investigator might compromise the safety of the participant in the study.

  • Treatment with any serum creatinine-altering drugs within 1 month prior to Visit 1 including but not limited to amphotericin, cimetidine, clofibrate, dronedarone, ketoconazole, probenecid, ranolazine, trimethoprim, aminoglycosides, or cephalosporins.

  • Treatment with systemic corticosteroid use within 8 weeks (oral) or 12 weeks (intramuscular) before Visit 1.

  • Treatment with marketed biologics including benralizumab, mepolizumab, reslizumab, omalizumab, and dupilumab within 6 months of Visit 1 or 5 half-lives whichever is longer.

  • Treatment with LTRAs or 5-lipoxygenase inhibitors (eg zileuton and montelukast; at least 8 weeks prior to Visit 1).

  • Inhaled corticosteroid + fast-acting β2 agonist as a reliever (eg Symbicort or Fostair Maintenance and Reliever Treatment) is not allowed 15 days prior to Visit 1, during screening/run-in and the treatment period and preferably 1 week after the last dose of study intervention.

  • Live or attenuated vaccines within 4 weeks of Visit 1.

  • Immunoglobulin or blood products within 4 weeks of Visit 1.

  • Treatment with Gemfibrozil within 4 weeks of Visit 1.

  • Any immunotherapy within 6 months of Visit 1, except for stable maintenance dose allergen-specific immunotherapy started at least 4 weeks prior to Visit 1 and expected to continue through to the end of the follow-up period.

  • Investigational products within 4 months or 5 half-lives of Visit 1.

  • Potent inducers/inhibitors of cytochrome P450 3A4 within 4 weeks of Visit 1.

  • Treatment with simvastatin, lovastatin, and atorvastatin at doses > 40 mg per day within 1 month prior to Visit 1. Treatment with sensitive cytochrome 3A substrates with narrow therapeutic window should be avoided from randomization to study drug.

  • For female participants on ethinyl estradiol containing combined oral contraceptives.

  • Concurrent enrolment in another clinical study.

  • Participant treated with any investigational drug within 30 days prior to Visit 1.

  • Known history of allergy or reaction to any component of the study intervention formulation.

  • For female participants only: Currently pregnant or breast-feeding.

  • Current smokers or participants with smoking history ≥ 10 pack-years.

  • Involvement in the planning and/or conduct of the study.

  • Donation of blood (≥ 450 mL) within 3 months or donation of plasma within 14 days before Visit 1.

  • Major surgery within 8 weeks prior to Visit 1, or planned inpatient surgery, major dental procedure or hospitalisation during the screening, treatment or follow-up periods.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Research Site Sheffield Alabama United States 35660
2 Research Site Bakersfield California United States 93301
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4 Research Site Huntington Beach California United States 92647
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157 Research Site Levice Slovakia 934 01
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Sponsors and Collaborators

  • AstraZeneca

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
AstraZeneca
ClinicalTrials.gov Identifier:
NCT05251259
Other Study ID Numbers:
  • D7552C00001
First Posted:
Feb 22, 2022
Last Update Posted:
Jul 13, 2022
Last Verified:
Jul 1, 2022
Individual Participant Data (IPD) Sharing Statement:
Yes
Plan to Share IPD:
Yes
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by AstraZeneca
Additional relevant MeSH terms:

Study Results

No Results Posted as of Jul 13, 2022