A Phase 2 interventional study of Mitiperstat (AZD4831) and Placebo in Chronic Obstructive Pulmonary Disease (COPD), sponsored by AstraZeneca. Completed at 101 sites in 14 countries. Open to participants aged 40 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-08-29.
Sponsored by AstraZeneca · Phase 2, Interventional, and Treatment
This is a research study to evaluate the efficacy and safety of the investigational drug Mitiperstat (AZD4831) in adult patients with chronic obstructive pulmonary disease.
Study D6582C00001 is a phase IIa randomised, double blind, placebo controlled, parallel arm study to evaluate the efficacy and safety of Mitiperstat (AZD4831) in adult participants with moderate to severe chronic obstructive pulmonary disease.
Approximately 100 sites globally will participate in this study. Approximately 406 participants will be randomised to two treatment groups; Mitiperstat (AZD4831) vs placebo in a 1:1 ratio.
4,131 studies on the registry are indexed under Pulmonary Disease, Chronic Obstructive; 697 are open to participants now.
This study's enrollment of 381 is above the median of 70 across 2,926 interventional studies indexed under Pulmonary Disease, Chronic Obstructive.
Browse Pulmonary Disease, Chronic Obstructive studies →AstraZeneca is the lead sponsor of 3,429 studies on the registry; 270 are open to participants now.
Of its 357 completed or terminated interventional studies of FDA-regulated products, 173 (48%) have results posted.
Counted across the registry records on this site, refreshed daily.
Participants who have a documented stable regimen of triple therapy or dual therapy for
≥ 3 months prior to enrolment.
Exclusion Criteria:
Approximately 203 participants will be randomised to receive placebo.
Other: Placebo
Approximately 203 participants will be randomised to receive mitiperstat (AZD4831).
Drug: Mitiperstat (AZD4831)
Oral dosage, once daily.
Oral dosage, once daily.
To Evaluate the Effect of Mitiperstat (AZD4831) as Compared to Placebo on the Time to First COPD Composite Exacerbation (CompEx) Event in Patients With Moderate to Severe COPD.
COPDCompEx is a composite endpoint of exacerbations and events defined from participant e-Diaries and peak expiratory flow (PEF). COPDCompEx defined exacerbations included episodes leading to one or more of the following: hospitalization, emergency room visit, treatment with systemic corticosteroids (injected and/or oral), or treatment with antibiotics. Diary COPDCompEx events are defined by threshold and slope criteria being met for \>= 2 consecutive days using the following diary and home spirometry variables: overall symptom rating, night-time awakenings due to symptoms, reliever medication use, PEF. COPDCompEx also includes patient withdrawals for treatment failure.
Time frame: From baseline to up to 24 weeks
To Assess the PK of Mitiperstat (AZD4831) in Patients With Moderate to Severe COPD
Measurement of Time to Reach Maximum Plasma Concentration (Tmax) at pre-randomisation (baseline visit) and week 12.
Time frame: At week 12
To Assess the Pharmacokinetics (PK) of Mitiperstat (AZD4831) in Patients With Moderate to Severe COPD.
Measurement of Maximum Plasma Concentration (Cmax) at pre-randomisation (baseline visit) and week 12.
Time frame: At week 12
To Evaluate the Effect of Mitiperstat (AZD4831) as Compared to Placebo on the Time to First Moderate or Severe Exacerbation.
A COPD exacerbation was considered moderate if it required treatment with systemic corticosteroids and/or antibiotics for at least 3 days or resulted in emergency room visit\< 24 hours requiring intensive treatment; and did not result in hospitalization or death. A COPD exacerbation was considered severe if it resulted in hospitalization (defined as an inpatient admission ≥ 24 hours in the hospital, an observation area, the emergency department, or other equivalent healthcare facility depending on the country and healthcare system) or death due to COPD.
Time frame: From baseline to up to week 24
To Assess the Effects of Mitiperstat (AZD4831) as Compared to Placebo on Post-bronchodilator (BD) Forced Expiratory Volume in the First Second (FEV1) in Patients With Moderate to Severe COPD.
The mean change from baseline in Post-BD FEV1 at Week 12 was estimated using a repeated measures mixed effects analysis of covariance. Only subjects with non-missing covariates are included in the analysis. FEV1 was measured by spirometry at clinic.
Time frame: From baseline to week 12
To Assess the Effect of Mitiperstat (AZD4831) Compared to Placebo on Respiratory Symptoms in Patients With Moderate to Severe COPD.
Change from baseline in EXAcerbations of Chronic Pulmonary Disease Tool (EXACT) which is a 14-item ePRO instrument developed to assess the frequency, severity and duration of COPD exacerbations. It has a theoretical range of 0 to 100, with higher values indicating a more severe condition. The EXACT will be performed at on-site visits using the e-Diary.
Time frame: From baseline to week 12 and week 24
To Assess the Effect of Mitiperstat (AZD4831) Compared to Placebo on Respiratory Symptoms in Patients With Moderate to Severe COPD.
Change from baseline to Week 12 and week 24 in mean Breathlessness, Cough and Sputum Scale (BCSS) score is reported. The BCSS was a 3-item daily diary that assesses the severity of the 3 symptoms: breathlessness, sputum, and cough, each on a 5-point Likert scale ranging from 0 (no symptoms) to 4 (severe symptoms). Item scores were summed to yield a total score ranging from 0 to 12; wherein higher total score indicated more severe symptoms. The BCSS was captured each evening via eDiary.
Time frame: From baseline to week 12 and week 24
To Assess the Effect of Mitiperstat (AZD4831) Compared to Placebo in Disease Impact in Patients With Moderate to Severe COPD.
Change from baseline to Week 12 and week 24 in cough Visual Analogue Scale (VAS) score is reported. Participants were asked to complete a cough severity VAS (100-point linear scale marked with a horizontal line by the participant, with 0 representing ''no cough'' and 100 representing "worst cough") that measured subjective assessment by the participant of the prior 24 hrs for severity of cough symptoms. It was completed each evening in the eDiary.
Time frame: From baseline to week 12 and week 24
Change From Baseline to Week 12 in Total COPD Assessment Test (CAT)
COPD Assessment Test (CAT) is designed to measure how COPD impacts on a patient's daily life and how this might change over time. It consists of 8 questions that ask the patient to rate items relating to symptoms and impact on quality of life (such as normal activity and sleep). Each question is performed on a 5-point Likert scale from 0 (no symptoms/no impact) to 5 (severe symptoms/impact). The CAT will be completed by participants at on-site visits using the e-Diary.
Time frame: From baseline to Week 12
The study was conducted at 101 centers in 14 countries (Argentina, Bulgaria, Canada, Denmark, Germany, Italy, Mexico, Netherlands, Poland, South Africa, Spain, Turkey, UK and USA).
| Milestone | Mitiperstat | Placebo |
|---|---|---|
| Started | 189 | 192 |
| Treated | 189 | 192 |
| Completed | 165 | 170 |
| Not completed | 24 | 22 |
| Withdrew: Adverse event | 11 | 7 |
| Withdrew: Death | 1 | 0 |
| Withdrew: Lost to follow-up | 1 | 1 |
| Withdrew: Physician decision | 1 | 2 |
| Withdrew: Protocol violation | 1 | 1 |
| Withdrew: Withdrawal by subject | 3 | 7 |
| Withdrew: Reason not specified | 6 | 4 |
COPDCompEx is a composite endpoint of exacerbations and events defined from participant e-Diaries and peak expiratory flow (PEF). COPDCompEx defined exacerbations included episodes leading to one or more of the following: hospitalization, emergency room visit, treatment with systemic corticosteroids (injected and/or oral), or treatment with antibiotics. Diary COPDCompEx events are defined by threshold and slope criteria being met for \>= 2 consecutive days using the following diary and home spirometry variables: overall symptom rating, night-time awakenings due to symptoms, reliever medication use, PEF. COPDCompEx also includes patient withdrawals for treatment failure.
| Participants | Mitiperstat | Placebo |
|---|---|---|
| To Evaluate the Effect of Mitiperstat (AZD4831) as Compared to Placebo on the Time to First COPD Composite Exacerbation (CompEx) Event in Patients With Moderate to Severe COPD. | 125 | 125 |
Measurement of Time to Reach Maximum Plasma Concentration (Tmax) at pre-randomisation (baseline visit) and week 12.
| hours | Mitiperstat |
|---|---|
| To Assess the PK of Mitiperstat (AZD4831) in Patients With Moderate to Severe COPD | 1.292 (0.42 to 2.92) |
Measurement of Maximum Plasma Concentration (Cmax) at pre-randomisation (baseline visit) and week 12.
| nmol/L | Mitiperstat |
|---|---|
| To Assess the Pharmacokinetics (PK) of Mitiperstat (AZD4831) in Patients With Moderate to Severe COPD. | 38.786 ± 39.5 |
A COPD exacerbation was considered moderate if it required treatment with systemic corticosteroids and/or antibiotics for at least 3 days or resulted in emergency room visit\< 24 hours requiring intensive treatment; and did not result in hospitalization or death. A COPD exacerbation was considered severe if it resulted in hospitalization (defined as an inpatient admission ≥ 24 hours in the hospital, an observation area, the emergency department, or other equivalent healthcare facility depending on the country and healthcare system) or death due to COPD.
| Participants | Mitiperstat | Placebo |
|---|---|---|
| To Evaluate the Effect of Mitiperstat (AZD4831) as Compared to Placebo on the Time to First Moderate or Severe Exacerbation. | 53 | 44 |
The mean change from baseline in Post-BD FEV1 at Week 12 was estimated using a repeated measures mixed effects analysis of covariance. Only subjects with non-missing covariates are included in the analysis. FEV1 was measured by spirometry at clinic.
| Litre | Mitiperstat | Placebo |
|---|---|---|
| To Assess the Effects of Mitiperstat (AZD4831) as Compared to Placebo on Post-bronchodilator (BD) Forced Expiratory Volume in the First Second (FEV1) in Patients With Moderate to Severe COPD. | -0.049 ± 0.0178 | -0.031 ± 0.0175 |
Change from baseline in EXAcerbations of Chronic Pulmonary Disease Tool (EXACT) which is a 14-item ePRO instrument developed to assess the frequency, severity and duration of COPD exacerbations. It has a theoretical range of 0 to 100, with higher values indicating a more severe condition. The EXACT will be performed at on-site visits using the e-Diary.
| Units on a scale | Mitiperstat | Placebo |
|---|---|---|
| Week 12 | 0.1 ± 0.97 | -2.4 ± 0.95 |
| Week 24 | -1.9 ± 1.32 | -3.7 ± 1.36 |
Change from baseline to Week 12 and week 24 in mean Breathlessness, Cough and Sputum Scale (BCSS) score is reported. The BCSS was a 3-item daily diary that assesses the severity of the 3 symptoms: breathlessness, sputum, and cough, each on a 5-point Likert scale ranging from 0 (no symptoms) to 4 (severe symptoms). Item scores were summed to yield a total score ranging from 0 to 12; wherein higher total score indicated more severe symptoms. The BCSS was captured each evening via eDiary.
| Units on a scale | Mitiperstat | Placebo |
|---|---|---|
| Week 12 | 0.16 ± 0.130 | 0.15 ± 0.127 |
| Week 24 | 0.11 ± 0.166 | -0.17 ± 0.172 |
Change from baseline to Week 12 and week 24 in cough Visual Analogue Scale (VAS) score is reported. Participants were asked to complete a cough severity VAS (100-point linear scale marked with a horizontal line by the participant, with 0 representing ''no cough'' and 100 representing "worst cough") that measured subjective assessment by the participant of the prior 24 hrs for severity of cough symptoms. It was completed each evening in the eDiary.
| Units on a scale | Mitiperstat | Placebo |
|---|---|---|
| Week 12 | -1.25 ± 1.183 | -3.05 ± 1.160 |
| Week 24 | -2.64 ± 1.540 | -3.48 ± 1.562 |
COPD Assessment Test (CAT) is designed to measure how COPD impacts on a patient's daily life and how this might change over time. It consists of 8 questions that ask the patient to rate items relating to symptoms and impact on quality of life (such as normal activity and sleep). Each question is performed on a 5-point Likert scale from 0 (no symptoms/no impact) to 5 (severe symptoms/impact). The CAT will be completed by participants at on-site visits using the e-Diary.
| Units on a scale | Mitiperstat | Placebo |
|---|---|---|
| Change From Baseline to Week 12 in Total COPD Assessment Test (CAT) | -1.2 ± 0.62 | -1.2 ± 0.64 |
Collected over From Day 1 to Week 24. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Mitiperstat | 1/189 (0.5%) | 23/189 (12.2%) | 53/189 (28%) |
| Placebo | 0/192 (0%) | 13/192 (6.8%) | 45/192 (23.4%) |
| Event | Mitiperstat | Placebo |
|---|---|---|
| Chronic obstructive pulmonary diseaseRespiratory, thoracic and mediastinal disorders | 14/189 | 5/192 |
| PneumoniaInfections and infestations | 5/189 | 3/192 |
| Pulmonary embolismRespiratory, thoracic and mediastinal disorders | 0/189 | 2/192 |
| Squamous cell carcinomaNeoplasms benign, malignant and unspecified (incl cysts and polyps) | 1/189 | 1/192 |
| Carotid artery thrombosisNervous system disorders | 1/189 | 0/192 |
| Respiratory failureRespiratory, thoracic and mediastinal disorders | 1/189 | 0/192 |
| Aortic aneurysmVascular disorders | 1/189 | 0/192 |
| Atrial fibrillationCardiac disorders | 1/189 | 0/192 |
| Cardiac failure acuteCardiac disorders | 1/189 | 0/192 |
| ConstipationGastrointestinal disorders | 1/189 | 0/192 |
| Event | Mitiperstat | Placebo |
|---|---|---|
| Chronic obstructive pulmonary diseaseRespiratory, thoracic and mediastinal disorders | 45/189 | 36/192 |
| NasopharyngitisInfections and infestations | 11/189 | 12/192 |
| Age, Continuous(Years) | Mitiperstat | Placebo | Total |
|---|---|---|---|
| Mean | 66.2 ± 6.65 | 65.7 ± 7.03 | 66 ± 6.84 |
| Sex: Female, Male(Participants) | Mitiperstat | Placebo | Total |
|---|---|---|---|
| Female | 77 | 74 | 151 |
| Male | 112 | 118 | 230 |
| Ethnicity (NIH/OMB)(Participants) | Mitiperstat | Placebo | Total |
|---|---|---|---|
| Hispanic or Latino | 26 | 27 | 53 |
| Not Hispanic or Latino | 163 | 165 | 328 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | Mitiperstat | Placebo | Total |
|---|---|---|---|
| American Indian or Alaska Native | 1 | 1 | 2 |
| Asian | 1 | 1 | 2 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 2 | 1 | 3 |
| White | 182 | 183 | 365 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 3 | 6 | 9 |
Showing the first 100 of 101 sites across 14 countries.
Documents are hosted by the registry — open the source record to download them.
Plan to share: Yes — Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.
Supporting information: Study protocol, Sap
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