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Study of MK-0476 in Adult Patients With Acute Asthma (0476-334)

MK-476 IV Formulation Phase III Open Label Exploratory Comparative Study - Acute Exacerbations of Asthma -

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00442338
Enrollment
91
Registered
2007-03-01
Start date
2007-03-31
Completion date
2007-08-31
Last updated
2022-02-02

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

Conditions

Asthma

Brief summary

The study estimates the efficacy and safety of MK0476 and aminophylline intravenous administration in adult participants with acute asthma.

Interventions

DRUGmontelukast sodium

Montelukast 7 mg single injection (IV bolus administration) over 2-3 minutes

DRUGaminophylline hydrate

Aminophylline 250 mg IV drip infusion over 60 minutes

Sponsors

Organon and Co
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
15 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Adult participants with acute asthma attacks

Exclusion criteria

* Participant has any known or suspected, acute or chronic cause for their pulmonary symptoms other than asthma (e.g., COPD, chronic heart failure, etc.). * Participant has a smoking habit (15 cigarettes per day) within a month prior to screening period, and/or has a smoking history (20 cigarettes per day) of more than 15 years. * Participant has a disease of the cardiovascular, hepatic, renal, hematologic systems, or other severe disease.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Forced Expiratory Volume in One Second (FEV1) Within the First 60 Minutes After AdministrationBaseline and 60 minutes after study drug administrationThe time weighted average change from Baseline in Forced Expiratory Volume in One Second (FEV1) over the first 60 minutes after study drug administration (average change FEV1 (0-60 min)). Baseline (pre-allocation) was the last measurement obtained during the screening period.

Participant flow

Recruitment details

Phase III. Studied period: March 12, 2007 (date study drug was first administered to first participant) to August 1, 2007 (date study drug was last administered to last participant). Study was conducted at 31 clinical sites.

Pre-assignment details

Participants with acute exacerbation of bronchial asthma received standard treatments of inhaled β-agonist or oxygen inhalation to treat the acute exacerbations during the 60 minutes in the screening period before the study randomization.

Participants by arm

ArmCount
Montelukast 7 mg
Montelukast 7 mg IV Administration
30
Montelukast 14 mg
Montelukast 14 mg Intravenous Administration
30
Aminophylline 250 mg
Aminophylline 250 mg IV drip administration
31
Total91

Baseline characteristics

CharacteristicMontelukast 7 mgMontelukast 14 mgAminophylline 250 mgTotal
Age, Continuous56.0 Years
STANDARD_DEVIATION 12.3
56.7 Years
STANDARD_DEVIATION 15.2
55.4 Years
STANDARD_DEVIATION 14.5
56.0 Years
STANDARD_DEVIATION 13.9
Age, Customized
Adolescents (12-17 years)
0 Participants
12.3
1 Participants
15.2
0 Participants
14.5
1 Participants
Age, Customized
Adults (18-64 years)
21 Participants16 Participants20 Participants57 Participants
Age, Customized
From 65-84 years
9 Participants13 Participants11 Participants33 Participants
Asthma Attack Severity based on Asthma Prevention and Management Guideline 2003, Japan
Mild
21 Participants
0.29
18 Participants
0.33
26 Participants
0.53
65 Participants
Asthma Attack Severity based on Asthma Prevention and Management Guideline 2003, Japan
Moderate
9 Participants12 Participants5 Participants26 Participants
Asthma Attack Severity based on Asthma Prevention and Management Guideline 2003, Japan
Serious
0 Participants0 Participants0 Participants0 Participants
Asthma Attack Severity based on Asthma Prevention and Management Guideline 2003, Japan
Severe
0 Participants0 Participants0 Participants0 Participants
Baseline Forced Expiratory Volume in One Second (FEV1)1.35 Liter
STANDARD_DEVIATION 0.29
1.18 Liter
STANDARD_DEVIATION 0.33
1.43 Liter
STANDARD_DEVIATION 0.53
1.32 Liter
STANDARD_DEVIATION 0.41
Duration of Asthma14.9 Years
STANDARD_DEVIATION 10.4
13.9 Years
STANDARD_DEVIATION 11.5
16.7 Years
STANDARD_DEVIATION 14.1
15.2 Years
STANDARD_DEVIATION 12
Sex: Female, Male
Female
22 Participants24 Participants16 Participants62 Participants
Sex: Female, Male
Male
8 Participants6 Participants15 Participants29 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
5 / 301 / 303 / 31
serious
Total, serious adverse events
3 / 300 / 301 / 31

Outcome results

Primary

Change From Baseline in Forced Expiratory Volume in One Second (FEV1) Within the First 60 Minutes After Administration

The time weighted average change from Baseline in Forced Expiratory Volume in One Second (FEV1) over the first 60 minutes after study drug administration (average change FEV1 (0-60 min)). Baseline (pre-allocation) was the last measurement obtained during the screening period.

Time frame: Baseline and 60 minutes after study drug administration

Population: Per Protocol Set (PPS): subset of participants who comply with the protocol sufficiently to ensure that these data will likely exhibit effects of treatment, according to the underlying scientific model. Aminophylline 250 mg - 1 participant with no FEV1 data at 60 minutes was excluded from the analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Montelukast 7 mgChange From Baseline in Forced Expiratory Volume in One Second (FEV1) Within the First 60 Minutes After Administration0.07 Liter
Montelukast 14 mgChange From Baseline in Forced Expiratory Volume in One Second (FEV1) Within the First 60 Minutes After Administration0.05 Liter
Aminophylline 250 mgChange From Baseline in Forced Expiratory Volume in One Second (FEV1) Within the First 60 Minutes After Administration0.06 Liter
Comparison: Treatment difference in change from Baseline in FEV1 within the first 60 minutes after study drug administration was assessed as the difference in the least square (LS) means of time weighted average change FEV1 (0-60 min) using an Analysis of Covariance (ANCOVA) model.p-value: 0.87195% CI: [-0.07, 0.08]ANCOVA
Comparison: Treatment difference in change from Baseline in FEV1 within the first 60 minutes after study drug administration was assessed as the difference in the LS means of time weighted average change FEV1 (0-60 min) using an ANCOVA model.p-value: 0.79495% CI: [-0.08, 0.06]ANCOVA
Comparison: Treatment difference in change from Baseline in FEV1 within the first 60 minutes after study drug administration was assessed as the difference in the LS means of time weighted average change FEV1 (0-60 min) using an ANCOVA model.p-value: 0.67595% CI: [-0.06, 0.09]ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026