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A Phase I, Open-Label, Study to Evaluate the Pharmacokinetics, Safety and Tolerability of Aclidinium Bromide in Healthy Chinese Participants

A Phase I, Open-Label, Single and Multiple Dose (Twice-Daily), Clinical Trial to Evaluate the Pharmacokinetics, Safety and Tolerability of Aclidinium Bromide 400 μg Administered by Inhalation in Healthy Chinese Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03276052
Enrollment
20
Registered
2017-09-08
Start date
2021-10-14
Completion date
2021-11-26
Last updated
2023-12-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Keywords

Pharmacokinetics

Brief summary

A Phase I, single centre, open-label study to investigate the pharmacokinetics (PK), safety and tolerability of single and multiple twice daily doses of inhaled Aclidinium Bromide in healthy Chinese male and female subjects.

Detailed description

Screening will be performed within 21 days of dosing on Day 1. Eligible participants will be admitted to the trial center on Day -1. Subjects will receive single dose on Day 1, twice daily regimen is from D5 to D8, and only morning dose will be given on Day 9. During treatment period, from Day 1 through Day 11 at Visit 2, safety measurements (blood pressure, 12-lead ECG; and AE/SAE monitoring) and blood samples for PK assessments will be collected at predetermined time points. Clinical laboratory tests (haematology, serum biochemistry and urinalysis) will be performed under fasting conditions at Day -1 at Visit 2. A follow-up visit will be performed on Day 15.

Interventions

Aclidinium Bromide 400 μg BID inhalation powder. One oral inhalation via Genuair® dry powder inhaler (DPI)

Sponsors

AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Single and Multiple Dose (Twice-Daily)

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

1. Ability to communicate with medical team and staff, willing to participate in the trial, willing to give written informed consent, and comply with the trial restrictions. 2. Healthy subjects: Chinese men or non-pregnant, non-lactating women, 18 through 45 years old at Visit 1 (Screening). 3. Have a body mass index (BMI) ≥19 kg/m2 and ≤ 26 kg/m2 4. Resting heart rate ≥ 50 beats per minute (bpm) and ≤ 100 bpm at Visit 1 (Screening) and at admission to the unit on Day -1 at Visit 2. 5. Non-smoker (never smoked or has not smoked within 2 years prior to the first dose of investigational product \[IP\]). 6. Demonstrate satisfactory technique in the use of the DPI at screening.

Exclusion criteria

1. History of any significant drug allergy or hypersensitivity to aclidinium bromide or other muscarinic antagonists. 2. Have abnormal and clinically significant results on the physical examination, medical history, serum biochemistry, haematology, or urinalysis at Visit 1 (Screening). 3. Sustained resting systolic blood pressure ≥ 140 or ≤ 90 mmHg and resting diastolic blood pressure ≥ 90 or ≤ 50 mmHg at Visit 1 (Screening) or Day -1 at Visit 2. 4. Electrocardiogram (ECG) showing corrected QT interval (QTc) using Fridericia's correction (QTcF) ≥ 450 msec for male participants and ≥460 msec for female participants as indicated in the centralised reading report assessed at Screening (Visit 1). 5. Have a history of alcohol or substance abuse within the previous 5 years, as reported by the participants. 6. Positive results for drugs of abuse at Visit 1 (Screening). 7. Positive test for hepatitis B surface antigen (HBsAg), hepatitis C antibody and/or human immunodeficiency virus (HIV) antibodies at Visit 1 (Screening). 8. Use of any medication within 2 weeks or within the equivalent time of 5 half-lives of taking the last dose (whichever is longer) before the first dose of IP, or hormonal drug products and traditional Chinese medicines within 30 days before the first dose of IP. 9. Have consumed caffeine or any grapefruit-containing products within 48 hours or alcohol within 72 hours before Day -1. 10. Participation in any other clinical investigation using an experimental drug requiring repeated blood or plasma draws within 60 days of Day 1 at Visit 2. 11. Have participated in a blood/plasma donation or blood loss greater than 400 mL within 90 days, or greater than 200 mL within 30 days prior to screening (Visit 1). 12. Recent history of a disease or condition that would result in any residual upper respiratory airways/lung inflammatory process or residual limited lung function at the time of Day 1 at Visit 2. 13. History of confirmed COVID-19 infection. 14. Have any gastrointestinal, hepatic, or renal condition that might affect the absorption, distribution, biotransformation, or excretion of aclidinium bromide. 15. Inability to be venipunctured or tolerate venous access as determined by the PI or designee. 16. Participants unable to give their consent, or participants of consenting age but under guardianship, or vulnerable participants. 17. In the opinion of the PI, participants who are unlikely to comply with the protocol requirements, instructions, and trial-related restrictions. 18. Participant is a relative of the Investigator or any sub-investigator, research assistant, pharmacist, trial coordinator, or other staff or directly involved in the conduct of the clinical trial. 19. Any other conditions that, in the Investigator's opinion, might have indicated the participant to be unsuitable for the study (e.g. confirmed/suspected COVID-19)

Design outcomes

Primary

MeasureTime frameDescription
Fluctuation Index During a Dosing Interval (%Fluc)Day 9Characterization of %Fluc, of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. The %Fluc index is estimated as 100 x (Cmax- Cmin)/Cav.
Maximum Observed Plasma Concentration (Cmax)Day 1 and Day 9Characterization of Cmax, taken directly from the individual concentration-time curve after single dose or multiple dose.
Time to Reach Maximum Observed Concentration (Tmax)Day 1 and Day 9Characterization of Tmax, taken directly from the individual concentration-time curve after single dose or multiple dose.
Area Under the Concentration-time From Zero to Infinity (AUCinf)Day 1Characterization of AUCinf (single dose). Area under the concentration time curve from time zero extrapolated to infinity. AUC(0-∞) is estimated by AUC(last) + Clast/λz where Clast is the last observed quantifiable concentration.
Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]Day 1 and Day 9The AUC(0-12) of aclidinium bromide and its metabolites after single dose of aclidinium bromide in healthy Chinese participants is investigated. Description of the AUC(0-12), partial area under the concentration- time curve in the dose interval after single dose or multiple dose.
Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)Day 1 and Day 9Characterization of AUClast, taken directly from the individual concentration-time curve after single dose or multiple dose.
Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)Day 1 and Day 9Characterization of t½λz, of aclidinium bromide and its metabolites after single and multiple doses of aclidinium bromide in healthy Chinese participants.
Apparent Total Body Clearance From Plasma After Extravascular Administration (CL/F)Day 1 and Day 9Characterization of CL/F, of aclidinium bromide after single and multiple doses of aclidinium bromide in healthy Chinese participants.
Volume of Distribution (Apparent) Following Extravascular Administration Based on Terminal Phase (Vz/F)Day 1 and Day 9Characterization of Vz/F, of aclidinium bromide after single and multiple doses of aclidinium bromide in healthy Chinese participants.
Mean Residence Time of the Unchanged Drug in the Systemic Circulation (MRTinf)Day 1Characterization of MRTinf, of aclidinium bromide after single dose of aclidinium bromide in healthy Chinese participants.
Minimum Observed Drug Concentration (Cmin)Day 1 and Day 9Characterization of Cmin, taken directly from the individual concentration-time curve after single dose or multiple dose.
Average Drug Concentration Over a Dosing Interval (Cavg)Day 9Characterization of Cavg, of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants.
Accumulation Ratio for Cmax [Rac(Cmax)]Day 9Characterization of Rac(Cmax), of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. Rac(Cmax) is caculated as a ratio for Cmax estimated as (ratio of Css,max on Day 9/Cmax on Day 1).
Accumulation Ratio for Cmin (Rac[Cmin])Day 9Characterization of Rac(Cmin), of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. Rac(Cmin) is calculated as ratio for Cmin estimated as (ratio of Css, Cmin on Day 9/ Cmin on Day 1)
Accumulation Ratio for AUCτ (Rac[AUC])Day 9Characterization of Rac(AUC), of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. Rac(AUC), calculated as ratio of AUC(0-12) on day 9 and AUC0-12 on Day 1.

Secondary

MeasureTime frameDescription
Number of Participants With Adverse Events (AEs)From Screening (Day -21 to Day -2) until the follow-up visit (Day 15)The safety, and tolerability of aclidinium bromide 400 μg BID after single and multiple dose administration in healthy Chinese participants was evaluated.

Countries

China

Participant flow

Recruitment details

The study was conducted at one study centre in China between 14 October 2021 to 26 November 2021.

Pre-assignment details

The Screening period was of 21 days before randomization. Participants who met the inclusion and none of the exclusion criteria were enrolled to the study. All study assessments were performed as per the schedule of assessment.

Participants by arm

ArmCount
Aclidinium Bromide 400 μg
Healthy Chinese participants received aclidinium bromide 400 μg.
20
Total20

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyScreening failure (non-fulfilment of inclusion/exclusion criteria)18
Overall StudyWithdrawal by Subject5

Baseline characteristics

CharacteristicAclidinium Bromide 400 μg
Age, Continuous27.15 years
STANDARD_DEVIATION 5.2
Race/Ethnicity, Customized
Asian/Chinese
20 Participants
Sex: Female, Male
Female
9 Participants
Sex: Female, Male
Male
11 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
5 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

Primary

Accumulation Ratio for AUCτ (Rac[AUC])

Characterization of Rac(AUC), of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. Rac(AUC), calculated as ratio of AUC(0-12) on day 9 and AUC0-12 on Day 1.

Time frame: Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Accumulation Ratio for AUCτ (Rac[AUC])Aclidinium bromide2.141 RatioGeometric Coefficient of Variation 37.64
Single Dose (Day 1)Accumulation Ratio for AUCτ (Rac[AUC])LAS34850 (inactive acid metabolite)1.492 RatioGeometric Coefficient of Variation 16.84
Single Dose (Day 1)Accumulation Ratio for AUCτ (Rac[AUC])LAS34823 (inactive alcohol metabolite)2.354 RatioGeometric Coefficient of Variation 40.94
Primary

Accumulation Ratio for Cmax [Rac(Cmax)]

Characterization of Rac(Cmax), of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. Rac(Cmax) is caculated as a ratio for Cmax estimated as (ratio of Css,max on Day 9/Cmax on Day 1).

Time frame: Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Accumulation Ratio for Cmax [Rac(Cmax)]Aclidinium bromide1.431 RatioGeometric Coefficient of Variation 44.18
Single Dose (Day 1)Accumulation Ratio for Cmax [Rac(Cmax)]LAS34850 (inactive acid metabolite)1.277 RatioGeometric Coefficient of Variation 20.4
Single Dose (Day 1)Accumulation Ratio for Cmax [Rac(Cmax)]LAS34823 (inactive alcohol metabolite)1.794 RatioGeometric Coefficient of Variation 45.61
Primary

Accumulation Ratio for Cmin (Rac[Cmin])

Characterization of Rac(Cmin), of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. Rac(Cmin) is calculated as ratio for Cmin estimated as (ratio of Css, Cmin on Day 9/ Cmin on Day 1)

Time frame: Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Accumulation Ratio for Cmin (Rac[Cmin])Aclidinium bromide3.554 RatioGeometric Coefficient of Variation 50.32
Single Dose (Day 1)Accumulation Ratio for Cmin (Rac[Cmin])LAS34850 (inactive acid metabolite)1.888 RatioGeometric Coefficient of Variation 22.9
Single Dose (Day 1)Accumulation Ratio for Cmin (Rac[Cmin])LAS34823 (inactive alcohol metabolite)2.903 RatioGeometric Coefficient of Variation 37.7
Primary

Apparent Total Body Clearance From Plasma After Extravascular Administration (CL/F)

Characterization of CL/F, of aclidinium bromide after single and multiple doses of aclidinium bromide in healthy Chinese participants.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Apparent Total Body Clearance From Plasma After Extravascular Administration (CL/F)1503 Liter/hourGeometric Coefficient of Variation 59.15
Multiple Dose (Day 9)Apparent Total Body Clearance From Plasma After Extravascular Administration (CL/F)1118 Liter/hourGeometric Coefficient of Variation 32.28
Primary

Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]

The AUC(0-12) of aclidinium bromide and its metabolites after single dose of aclidinium bromide in healthy Chinese participants is investigated. Description of the AUC(0-12), partial area under the concentration- time curve in the dose interval after single dose or multiple dose.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]Aclidinium bromide167.1 h*pg/mLGeometric Coefficient of Variation 40.19
Single Dose (Day 1)Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]LAS34850 (inactive acid metabolite)22730 h*pg/mLGeometric Coefficient of Variation 18.64
Single Dose (Day 1)Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]LAS34823 (inactive alcohol metabolite)438.1 h*pg/mLGeometric Coefficient of Variation 37.26
Multiple Dose (Day 9)Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]Aclidinium bromide357.8 h*pg/mLGeometric Coefficient of Variation 32.28
Multiple Dose (Day 9)Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]LAS34850 (inactive acid metabolite)33910 h*pg/mLGeometric Coefficient of Variation 15.33
Multiple Dose (Day 9)Area Under the Concentration-time From Time 0 to 12 Hours Post-dose [AUC(0-12)]LAS34823 (inactive alcohol metabolite)1031 h*pg/mLGeometric Coefficient of Variation 25.56
Primary

Area Under the Concentration-time From Zero to Infinity (AUCinf)

Characterization of AUCinf (single dose). Area under the concentration time curve from time zero extrapolated to infinity. AUC(0-∞) is estimated by AUC(last) + Clast/λz where Clast is the last observed quantifiable concentration.

Time frame: Day 1

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Area Under the Concentration-time From Zero to Infinity (AUCinf)Aclidinium bromide266.1 h*pg/mLGeometric Coefficient of Variation 59.15
Single Dose (Day 1)Area Under the Concentration-time From Zero to Infinity (AUCinf)LAS34850 (inactive acid metabolite)29970 h*pg/mLGeometric Coefficient of Variation 17.63
Single Dose (Day 1)Area Under the Concentration-time From Zero to Infinity (AUCinf)LAS34823 (inactive alcohol metabolite)684.4 h*pg/mLGeometric Coefficient of Variation 48.04
Primary

Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)

Characterization of AUClast, taken directly from the individual concentration-time curve after single dose or multiple dose.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)Aclidinium bromide208.9 h*pg/mLGeometric Coefficient of Variation 57.23
Single Dose (Day 1)Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)LAS34850 (inactive acid metabolite)29010 h*pg/mLGeometric Coefficient of Variation 18.02
Single Dose (Day 1)Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)LAS34823 (inactive alcohol metabolite)550.4 h*pg/mLGeometric Coefficient of Variation 54.05
Multiple Dose (Day 9)Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)Aclidinium bromide609.4 h*pg/mLGeometric Coefficient of Variation 36.49
Multiple Dose (Day 9)Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)LAS34850 (inactive acid metabolite)50370 h*pg/mLGeometric Coefficient of Variation 16.78
Multiple Dose (Day 9)Area Under the Concentration-time From Zero to the Last Quantifiable Concentration (AUClast)LAS34823 (inactive alcohol metabolite)1849 h*pg/mLGeometric Coefficient of Variation 25.49
Primary

Average Drug Concentration Over a Dosing Interval (Cavg)

Characterization of Cavg, of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants.

Time frame: Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Average Drug Concentration Over a Dosing Interval (Cavg)Aclidinium bromide29.82 pg/mLGeometric Coefficient of Variation 32.28
Single Dose (Day 1)Average Drug Concentration Over a Dosing Interval (Cavg)LAS34850 (inactive acid metabolite)2826 pg/mLGeometric Coefficient of Variation 15.33
Single Dose (Day 1)Average Drug Concentration Over a Dosing Interval (Cavg)LAS34823 (inactive alcohol metabolite)85.95 pg/mLGeometric Coefficient of Variation 25.56
Primary

Fluctuation Index During a Dosing Interval (%Fluc)

Characterization of %Fluc, of aclidinium bromide and its metabolites after multiple doses of aclidinium bromide in healthy Chinese participants. The %Fluc index is estimated as 100 x (Cmax- Cmin)/Cav.

Time frame: Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Fluctuation Index During a Dosing Interval (%Fluc)Aclidinium bromide1102 PercentageGeometric Coefficient of Variation 34.7
Single Dose (Day 1)Fluctuation Index During a Dosing Interval (%Fluc)LAS34850 (inactive acid metabolite)128.9 PercentageGeometric Coefficient of Variation 14.9
Single Dose (Day 1)Fluctuation Index During a Dosing Interval (%Fluc)LAS34823 (inactive alcohol metabolite)289.2 PercentageGeometric Coefficient of Variation 35.31
Primary

Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)

Characterization of t½λz, of aclidinium bromide and its metabolites after single and multiple doses of aclidinium bromide in healthy Chinese participants.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)Aclidinium bromide13.50 HourGeometric Coefficient of Variation 91.55
Single Dose (Day 1)Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)LAS34850 (inactive acid metabolite)8.322 HourGeometric Coefficient of Variation 26.83
Single Dose (Day 1)Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)LAS34823 (inactive alcohol metabolite)9.964 HourGeometric Coefficient of Variation 42.98
Multiple Dose (Day 9)Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)Aclidinium bromide21.42 HourGeometric Coefficient of Variation 25.63
Multiple Dose (Day 9)Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)LAS34850 (inactive acid metabolite)12.68 HourGeometric Coefficient of Variation 18.98
Multiple Dose (Day 9)Half-life Associated With Terminal Slope of a Semi-logarithmic Concentration-time Curve (t½λz)LAS34823 (inactive alcohol metabolite)17.66 HourGeometric Coefficient of Variation 12.35
Primary

Maximum Observed Plasma Concentration (Cmax)

Characterization of Cmax, taken directly from the individual concentration-time curve after single dose or multiple dose.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Maximum Observed Plasma Concentration (Cmax)Aclidinium bromide238.6 pg/mLGeometric Coefficient of Variation 51.67
Single Dose (Day 1)Maximum Observed Plasma Concentration (Cmax)LAS34850 (inactive acid metabolite)3831 pg/mLGeometric Coefficient of Variation 24.99
Single Dose (Day 1)Maximum Observed Plasma Concentration (Cmax)LAS34823 (inactive alcohol metabolite)164.0 pg/mLGeometric Coefficient of Variation 45.05
Multiple Dose (Day 9)Maximum Observed Plasma Concentration (Cmax)Aclidinium bromide341.3 pg/mLGeometric Coefficient of Variation 40.24
Multiple Dose (Day 9)Maximum Observed Plasma Concentration (Cmax)LAS34850 (inactive acid metabolite)4891 pg/mLGeometric Coefficient of Variation 16.52
Multiple Dose (Day 9)Maximum Observed Plasma Concentration (Cmax)LAS34823 (inactive alcohol metabolite)294.1 pg/mLGeometric Coefficient of Variation 39.93
Primary

Mean Residence Time of the Unchanged Drug in the Systemic Circulation (MRTinf)

Characterization of MRTinf, of aclidinium bromide after single dose of aclidinium bromide in healthy Chinese participants.

Time frame: Day 1

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Mean Residence Time of the Unchanged Drug in the Systemic Circulation (MRTinf)13.45 HourGeometric Coefficient of Variation 95.18
Primary

Minimum Observed Drug Concentration (Cmin)

Characterization of Cmin, taken directly from the individual concentration-time curve after single dose or multiple dose.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Minimum Observed Drug Concentration (Cmin)Aclidinium bromide3.251 pg/mLGeometric Coefficient of Variation 56.25
Single Dose (Day 1)Minimum Observed Drug Concentration (Cmin)LAS34850 (inactive acid metabolite)647.8 pg/mLGeometric Coefficient of Variation 20.84
Single Dose (Day 1)Minimum Observed Drug Concentration (Cmin)LAS34823 (inactive alcohol metabolite)14.82 pg/mLGeometric Coefficient of Variation 31.53
Multiple Dose (Day 9)Minimum Observed Drug Concentration (Cmin)Aclidinium bromide11.55 pg/mLGeometric Coefficient of Variation 41.22
Multiple Dose (Day 9)Minimum Observed Drug Concentration (Cmin)LAS34850 (inactive acid metabolite)1223 pg/mLGeometric Coefficient of Variation 19.34
Multiple Dose (Day 9)Minimum Observed Drug Concentration (Cmin)LAS34823 (inactive alcohol metabolite)43.03 pg/mLGeometric Coefficient of Variation 28.55
Primary

Time to Reach Maximum Observed Concentration (Tmax)

Characterization of Tmax, taken directly from the individual concentration-time curve after single dose or multiple dose.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureGroupValue (MEDIAN)
Single Dose (Day 1)Time to Reach Maximum Observed Concentration (Tmax)Aclidinium bromide0.08 Hour
Single Dose (Day 1)Time to Reach Maximum Observed Concentration (Tmax)LAS34850 (inactive acid metabolite)3.00 Hour
Single Dose (Day 1)Time to Reach Maximum Observed Concentration (Tmax)LAS34823 (inactive alcohol metabolite)0.08 Hour
Multiple Dose (Day 9)Time to Reach Maximum Observed Concentration (Tmax)Aclidinium bromide0.08 Hour
Multiple Dose (Day 9)Time to Reach Maximum Observed Concentration (Tmax)LAS34850 (inactive acid metabolite)2.50 Hour
Multiple Dose (Day 9)Time to Reach Maximum Observed Concentration (Tmax)LAS34823 (inactive alcohol metabolite)0.08 Hour
Primary

Volume of Distribution (Apparent) Following Extravascular Administration Based on Terminal Phase (Vz/F)

Characterization of Vz/F, of aclidinium bromide after single and multiple doses of aclidinium bromide in healthy Chinese participants.

Time frame: Day 1 and Day 9

Population: The PK analysis set consisted of all participants in the safety analysis set who received at least 1 dose of aclidinium bromide.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Single Dose (Day 1)Volume of Distribution (Apparent) Following Extravascular Administration Based on Terminal Phase (Vz/F)29280 LiterGeometric Coefficient of Variation 45.53
Multiple Dose (Day 9)Volume of Distribution (Apparent) Following Extravascular Administration Based on Terminal Phase (Vz/F)34550 LiterGeometric Coefficient of Variation 40.89
Secondary

Number of Participants With Adverse Events (AEs)

The safety, and tolerability of aclidinium bromide 400 μg BID after single and multiple dose administration in healthy Chinese participants was evaluated.

Time frame: From Screening (Day -21 to Day -2) until the follow-up visit (Day 15)

Population: The safety analysis set included all participants who received at least 1 dose of IP and for whom any safety post-dose data were available.

ArmMeasureGroupValue (NUMBER)
Single Dose (Day 1)Number of Participants With Adverse Events (AEs)Any AE5 Participants
Single Dose (Day 1)Number of Participants With Adverse Events (AEs)Any AE with outcome = death0 Participants
Single Dose (Day 1)Number of Participants With Adverse Events (AEs)Any SAE (including events with outcome = death)0 Participants
Single Dose (Day 1)Number of Participants With Adverse Events (AEs)Any AE leading to discontinuation of IP0 Participants
Single Dose (Day 1)Number of Participants With Adverse Events (AEs)Any AE of special interest1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026