Trial Outcomes & Findings for Safety and Efficacy of Mucinex and IR Guaifenesin the Treatment of Symptoms of Acute Upper Respiratory Tract Infections (NCT NCT01537081)

NCT ID: NCT01537081

Last Updated: 2013-11-14

Results Overview

Participants completed diary cards twice a day that asked questions about their cough and phlegm status. The Daily Cough and Phlegm Diary Card consisted of eleven questions, eight core questions plus three questions that were answered dependent upon the response to core questions. The SUM8 consisted of the sum of the answers to the eight core questions. Each question was answered on a scale of 0-4, with 4 representing the greatest severity of symptoms. The SUM8 thus had a scale range of 0-32 with 0 representing best possible symptoms, and 32 representing greatest severity of symptoms.

Recruitment status

COMPLETED

Study phase

PHASE2/PHASE3

Target enrollment

2810 participants

Primary outcome timeframe

Day 4

Results posted on

2013-11-14

Participant Flow

A total of 3215 patients were screened for enrollment, and 405 did not proceed in the study. Participants were randomized in a 2:2:1 ratio.

Participant milestones

Participant milestones
Measure
Mucinex 2400 mg/Day
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex (600-mg) tablets and 1 placebo tablet matching the 200-mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Overall Study
STARTED
1123
1124
563
Overall Study
Safety Population
1122
1122
561
Overall Study
Modified Intent to Treat Population
1106
1109
556
Overall Study
COMPLETED
1084
1086
547
Overall Study
NOT COMPLETED
39
38
16

Reasons for withdrawal

Reasons for withdrawal
Measure
Mucinex 2400 mg/Day
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex (600-mg) tablets and 1 placebo tablet matching the 200-mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Overall Study
Adverse Event
5
2
2
Overall Study
Lack of Efficacy
2
1
0
Overall Study
Lost to Follow-up
17
15
9
Overall Study
Protocol Violation
3
2
2
Overall Study
Withdrawal by Subject
6
11
3
Overall Study
Physician Decision
5
6
0
Overall Study
Sponsor decision
0
1
0
Overall Study
Assigned but never dosed
1
0
0

Baseline Characteristics

Safety and Efficacy of Mucinex and IR Guaifenesin the Treatment of Symptoms of Acute Upper Respiratory Tract Infections

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Mucinex 2400 mg/Day
n=1122 Participants
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex 600-mg tablets and 1 placebo tablet matching the 200 mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
n=1122 Participants
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
n=561 Participants
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Total
n=2805 Participants
Total of all reporting groups
Age Continuous
37.3 years
STANDARD_DEVIATION 13.81 • n=5 Participants
36.8 years
STANDARD_DEVIATION 13.81 • n=7 Participants
37.9 years
STANDARD_DEVIATION 14.09 • n=5 Participants
37.2 years
STANDARD_DEVIATION 13.87 • n=4 Participants
Sex: Female, Male
Female
670 Participants
n=5 Participants
668 Participants
n=7 Participants
333 Participants
n=5 Participants
1671 Participants
n=4 Participants
Sex: Female, Male
Male
452 Participants
n=5 Participants
454 Participants
n=7 Participants
228 Participants
n=5 Participants
1134 Participants
n=4 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
1 participants
n=5 Participants
7 participants
n=7 Participants
2 participants
n=5 Participants
10 participants
n=4 Participants
Race/Ethnicity, Customized
Asian
31 participants
n=5 Participants
25 participants
n=7 Participants
13 participants
n=5 Participants
69 participants
n=4 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
4 participants
n=5 Participants
3 participants
n=7 Participants
3 participants
n=5 Participants
10 participants
n=4 Participants
Race/Ethnicity, Customized
Black or African American
382 participants
n=5 Participants
419 participants
n=7 Participants
200 participants
n=5 Participants
1001 participants
n=4 Participants
Race/Ethnicity, Customized
White
686 participants
n=5 Participants
656 participants
n=7 Participants
327 participants
n=5 Participants
1669 participants
n=4 Participants
Race/Ethnicity, Customized
Other
18 participants
n=5 Participants
12 participants
n=7 Participants
16 participants
n=5 Participants
46 participants
n=4 Participants

PRIMARY outcome

Timeframe: Day 4

Population: Modified Intent-To-Treat (i.e., all randomized and treated subjects who had a baseline and at least 1 post-baseline set of assessments). Only participants who completed Daily Cough and Phlegm Diary Cards on the morning of Day 4 are included.

Participants completed diary cards twice a day that asked questions about their cough and phlegm status. The Daily Cough and Phlegm Diary Card consisted of eleven questions, eight core questions plus three questions that were answered dependent upon the response to core questions. The SUM8 consisted of the sum of the answers to the eight core questions. Each question was answered on a scale of 0-4, with 4 representing the greatest severity of symptoms. The SUM8 thus had a scale range of 0-32 with 0 representing best possible symptoms, and 32 representing greatest severity of symptoms.

Outcome measures

Outcome measures
Measure
Mucinex 2400 mg/Day
n=1064 Participants
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex 600-mg tablets and 1 placebo tablet matching the 200 mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
n=1081 Participants
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
n=542 Participants
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Summary Scores on the SUM8 Daily Cough and Phlegm Diary Card On the Morning of Day 4
12.96 units on a scale
Standard Deviation 6.226
12.87 units on a scale
Standard Deviation 6.078
12.71 units on a scale
Standard Deviation 5.828

PRIMARY outcome

Timeframe: Day 5

Population: Modified Intent-to-Treat(i.e., all randomized and treated subjects who had a baseline and at least 1 post-baseline set of assessments). Only participants who completed Daily Cough and Phlegm Diary Cards on the morning of Day 5 are included.

Participants completed diary cards twice a day that asked questions about their cough and phlegm status. The Daily Cough and Phlegm Diary Card consisted of eleven questions, eight core questions plus three questions that were answered dependent upon the response to core questions. The SUM8 consisted of the sum of the answers to the eight core questions. Each question was answered on a scale of 0-4, with 4 representing the greatest severity of symptoms. The SUM8 thus had a scale range of 0-32 with 0 representing best possible symptoms, and 32 representing greatest severity of symptoms.

Outcome measures

Outcome measures
Measure
Mucinex 2400 mg/Day
n=1065 Participants
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex 600-mg tablets and 1 placebo tablet matching the 200 mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
n=1060 Participants
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
n=537 Participants
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Summary Scores on the SUM8 Daily Cough and Phlegm Diary Card On the Morning of Day 5
10.92 units on a scale
Standard Deviation 6.448
10.80 units on a scale
Standard Deviation 6.261
11.05 units on a scale
Standard Deviation 5.900

Adverse Events

Mucinex 2400 mg/Day

Serious events: 0 serious events
Other events: 84 other events
Deaths: 0 deaths

Immediate-release Guaifenesin 800 mg/Day

Serious events: 0 serious events
Other events: 85 other events
Deaths: 0 deaths

Placebo

Serious events: 1 serious events
Other events: 41 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Mucinex 2400 mg/Day
n=1122 participants at risk
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex 600-mg tablets and 1 placebo tablet matching the 200 mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
n=1122 participants at risk
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
n=561 participants at risk
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Infections and infestations
Pneumonia
0.00%
0/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.00%
0/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.18%
1/561 • Number of events 1 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.

Other adverse events

Other adverse events
Measure
Mucinex 2400 mg/Day
n=1122 participants at risk
The study is designed to meet regulatory requirement outside the US. The dosing regimen and assessments timepoints were dictated by IR GGE and do not match approved Mucinex labeling. Participants were instructed to take 2 Mucinex 600-mg tablets and 1 placebo tablet matching the 200 mg IR guaifenesin tablet by mouth, every 12 hours for 7 days. To ensure complete blinding, on Hours 6 and 18, this treatment group took 2 matching Mucinex placebo tablets combined with 1 IR guaifenesin placebo tablet.
Immediate-release Guaifenesin 800 mg/Day
n=1122 participants at risk
The dosing regimen and assessments timepoints were dictated by immediate-release guaifenesin (IR GGE). Participants were instructed to take 1 immediate-release guaifenesin (IR GGE) 200 mg tablet and 2 matching Mucinex placebo tablets by mouth, every 6 hours for 7 days.
Placebo
n=561 participants at risk
Double dummy technique was employed requiring a large number of tablets and water to be consumed. Participants were instructed to take 2 matching Mucinex placebo tablets combined with 1 matching IR guaifenesin placebo tablet by mouth, every 6 hours for 7 days.
Gastrointestinal disorders
Diarrhoea
1.9%
21/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
1.5%
17/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
1.6%
9/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
Gastrointestinal disorders
Nausea
1.6%
18/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
1.7%
19/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
1.1%
6/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
Gastrointestinal disorders
Vomiting
0.62%
7/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.27%
3/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.71%
4/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
General disorders
Pyrexia
0.18%
2/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.45%
5/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.53%
3/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
Nervous system disorders
Dizziness
0.89%
10/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.71%
8/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.53%
3/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
Nervous system disorders
Headache
2.0%
22/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
2.4%
27/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
2.0%
11/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
Nervous system disorders
Somnolence
0.36%
4/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.53%
6/1122 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.
0.89%
5/561 • Treatment-emergent timeframe: Day 1 to Day 7
The safety population included all patients who received the study medication, excluding patients who later returned all the dispensed study medication to the site.

Additional Information

Gail Solomon,MS; Director Clinical Development

Reckitt Benckiser LLC

Phone: 973-404-2752

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: LTE60