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Bioequivalence Study Comparing Mucinex Extended-release 600 mg Tablets to Immediate-release Guaifenesin 600 mg in Healthy Volunteers

A Phase I, Open-label, Single-dose, Randomized, 2-way Crossover Bioequivalence Study Comparing Mucinex® SE Extended-Release 600 mg Bi-layer Tablet to a Reference Immediate-Release Guaifenesin 600 mg (Taken as 200 mg q4h) in Normal Healthy Subjects.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03644095
Enrollment
30
Registered
2018-08-23
Start date
2009-01-16
Completion date
2009-02-01
Last updated
2019-06-19

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

Conditions

Healthy Subjects

Brief summary

Determine bioequivalence, safety and tolerability of guaifenesin extended-release 600 mg (Mucinex® SE) compared to an immediate-release syrup reference product in normal healthy subjects.

Interventions

DRUGMucinex® SE

Single dose of Mucinex® SE extended-release 600 mg bi-layer tablet

Vicks Cough Syrup for Chesty Coughs 15 mL (200 mg guaifenesin q4h) immediate release (IR) syrup

Sponsors

Reckitt Benckiser Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Males and/or females between the ages of 19 and 55 years, inclusive. 2. Females of childbearing potential must be using one of the following acceptable birth control methods: 1. Intra-uterine device in place for at least 3 months prior to Day 1 of Period 1 through 30 days beyond study completion; 2. Barrier method (condom or diaphragm) with spermicide for at least 7 days prior to screening through 30 days beyond study completion; 3. Stable hormonal contraceptive (e.g., oral, depo injection, transdermal patch, or vaginal ring) for at least 3 months prior to Day 1 of Period 1 through 30 days beyond completion of study; Abstinence is not an acceptable form of contraception; however, abstinent female subjects may be admitted to the study if they agree, and have signed a statement to the effect, that upon becoming sexually active, will use a condom with spermicide from screening through 30 days beyond completion of the study. 3. Females of non-childbearing potential should be surgically sterile (bilateral tubal ligation with surgery at least 6 months prior to study or hysterectomy and/or bilateral oophorectomy at least 3 months prior to Day 1 of Period 1) or postmenopausal \>2 years prior to Day 1 of Period 1. A follicle stimulating hormone (FSH) concentration \>40 miU/mL must be obtained and recorded for any postmenopausal females. 4. Good general health as determined by the Principal Investigator's (PI) review of medical history, physical examination, vital sign measurements, electrocardiogram (ECG), and clinical laboratory measures. 5. Body weight between 50 - 100 kg and body mass index (BMI) within 18 - 30 kg/m2. 6. Non-tobacco users, who have not used nicotine or nicotine-containing products for at least 365 days prior to Day 1 of Period 1. 7. Able to read, understand and sign the informed consent after the nature of the study has been explained. 8. Negative urine screen for drugs of abuse and alcohol at screening and each check in. 9. If female, negative finding on serum pregnancy test at screening and each check-in. 10. Non alcohol or drug abuser - non alcohol abuse is defined as history of less than 4 drinks daily. A drink is defined as 5 ounces of wine, 12 ounces of beer, or 1.5 ounces of spirits (i.e., 'hard' liquor such as gin, whiskey, or vodka).

Exclusion criteria

1. Clinically significant abnormalities detected by medical history, physical examination, vial sign measurements, ECG, or clinical laboratory findings (as determined by the PI/designee) including a hemoglobin value \<12 gm/dL at screening. If a subject's hemoglobin drops below 11.0 gm/dL during the study, the subject may be dropped from the study at the discretion of the PI. 2. Any disease or condition, which could impact absorption, distribution, metabolism, or elimination of the study drugs (as determined by the PI/designee). 3. Females who are pregnant or nursing. 4. History of sensitivity reaction to guaifenesin. 5. Receipt of an investigational drug within 30 days prior to Day 1 of Period 1. 6. Abnormal diet (for whatever reason) during the 30 days prior to Day 1 of Period 1. 7. Donation of blood or significant loss of blood within 56 days or plasma within 14 days prior to Day 1 of Period 1. 8. Known or suspected use of illicit drugs. 9. The use of any medication (with the exception of hormonal contraceptives for women of childbearing potential) for 14 days or 5 half-lives of the drug (whichever is longer) prior to Day 1 of Period 1. 10. Test positive for Hepatitis B surface antigen, Hepatitis C antibodies, or HIV at Screening.

Design outcomes

Primary

MeasureTime frameDescription
Apparent Terminal Elimination Half-life (t1/2) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Apparent first-order terminal elimination half-life, calculated as ln(2)/kel.
Maximum Observed Plasma Concentration (Cmax) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Pharmacokinetic Parameter (Cmax) Maximum observed plasma concentration.
Area Under Plasma Concentration-time Curve From Time 0 to the Last Measurable Concentration (AUC(0-t)) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration, as calculated by the linear trapezoidal method.
Area Under Plasma Concentration-time Curve From Time 0 to Infinity (AUC(0-inf)) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Area under the plasma concentration versus time curve from time 0 to infinity, calculated as AUC 0-t + C last/kel, where C last is the last measurable concentration and kel is the apparent first-order terminal elimination rate constant.
Time to Maximum Observed Concentration (Tmax) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Pharmacokinetic Parameter (Tmax) Time of the maximum observed plasma concentration.
Area Under Plasma Concentration Curve Ratio (AUCR) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Pharmacokinetic Parameter AUCR is the ratio of AUC(0-t) to AUC(0-inf). AUCR = AUC(0-t) / AUC(0-inf)
Apparent Terminal Elimination Rate Constant (Kel) of Guaifenesin0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2Apparent first-order terminal elimination rate constant calculated from a semi-log plot of the plasma concentration versus time curve. The parameter was calculated by linear least-squares (LS) regression analysis using the maximum number of points (e.g. 3 or more non-zero plasma concentrations) in the terminal log-linear phase.

Secondary

MeasureTime frameDescription
Number of Adverse Events (AE) of ParticipantsUpto Day 2Mild = AE does not limit usual activities;subject may experience slight discomfort; Moderate = AE results in some limitation of usual activities; subject may experience significant discomfort; Severe = AE results in an inability to carry out usual activities; Probable = Most likely that the AE was caused by study drug; Possible = Reasonable suspicion that the AE was caused by the study drug; Unlikely = Slight but remote chance that the AE was caused by study drug but the balance of judgment is that it was most likely not due to the study drug.

Participant flow

Recruitment details

This was a single-centre study.

Pre-assignment details

Total 30 subjects were enrolled in the study and all 30 subjects completed the study.

Participants by arm

ArmCount
Overall Study
Test (Treatment A): Subjects received a single PO (by mouth) dose of 1 Mucinex® 600 mg guaifenesin ER bi-layer tablet administered with 240 mL of water. Reference (Treatment B): Subjects received a single PO (by mouth) dose of 15 mL (200 mg) Vicks Cough Syrup for Chesty Coughs Containing Guaifenesin every 4 hours (q4h) x 3 doses each administered with 240 mL of water. Period 1: Treatment A or Treatment B at Sequence AB Period 2: Treatment B or Treatment A at Sequence BA There was a 7 days washout period between each administration.
30
Total30

Baseline characteristics

CharacteristicOverall Study
Age, Continuous26.5 Years
STANDARD_DEVIATION 8.63
Body Mass Index23.937 kg/m²
STANDARD_DEVIATION 2.6486
Height68.92 In
STANDARD_DEVIATION 4.062
Race/Ethnicity, Customized
Caucasian
27 Participants
Race/Ethnicity, Customized
Hispanic
3 Participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
19 Participants
Weight162.2 lb
STANDARD_DEVIATION 25.37

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 300 / 30
other
Total, other adverse events
5 / 306 / 30
serious
Total, serious adverse events
0 / 300 / 30

Outcome results

Primary

Apparent Terminal Elimination Half-life (t1/2) of Guaifenesin

Apparent first-order terminal elimination half-life, calculated as ln(2)/kel.

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: PK Data Set

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Apparent Terminal Elimination Half-life (t1/2) of Guaifenesin2.26 hrStandard Deviation 0.948
Reference (Treatment B)Apparent Terminal Elimination Half-life (t1/2) of Guaifenesin0.989 hrStandard Deviation 0.147
Primary

Apparent Terminal Elimination Rate Constant (Kel) of Guaifenesin

Apparent first-order terminal elimination rate constant calculated from a semi-log plot of the plasma concentration versus time curve. The parameter was calculated by linear least-squares (LS) regression analysis using the maximum number of points (e.g. 3 or more non-zero plasma concentrations) in the terminal log-linear phase.

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: PK Data Sets

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Apparent Terminal Elimination Rate Constant (Kel) of Guaifenesin0.373 1/hrStandard Deviation 0.181
Reference (Treatment B)Apparent Terminal Elimination Rate Constant (Kel) of Guaifenesin0.716 1/hrStandard Deviation 0.11
Primary

Area Under Plasma Concentration Curve Ratio (AUCR) of Guaifenesin

Pharmacokinetic Parameter AUCR is the ratio of AUC(0-t) to AUC(0-inf). AUCR = AUC(0-t) / AUC(0-inf)

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: PK Data Set

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Area Under Plasma Concentration Curve Ratio (AUCR) of Guaifenesin0.988 RatioStandard Deviation 0.0144
Reference (Treatment B)Area Under Plasma Concentration Curve Ratio (AUCR) of Guaifenesin0.998 RatioStandard Deviation 0.00167
Primary

Area Under Plasma Concentration-time Curve From Time 0 to Infinity (AUC(0-inf)) of Guaifenesin

Area under the plasma concentration versus time curve from time 0 to infinity, calculated as AUC 0-t + C last/kel, where C last is the last measurable concentration and kel is the apparent first-order terminal elimination rate constant.

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: PK Data Set

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Area Under Plasma Concentration-time Curve From Time 0 to Infinity (AUC(0-inf)) of Guaifenesin3442.0 ng*hr/mLStandard Deviation 1674.8
Reference (Treatment B)Area Under Plasma Concentration-time Curve From Time 0 to Infinity (AUC(0-inf)) of Guaifenesin4456.4 ng*hr/mLStandard Deviation 1630.7
Primary

Area Under Plasma Concentration-time Curve From Time 0 to the Last Measurable Concentration (AUC(0-t)) of Guaifenesin

Area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration, as calculated by the linear trapezoidal method.

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: PK Data Set

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Area Under Plasma Concentration-time Curve From Time 0 to the Last Measurable Concentration (AUC(0-t)) of Guaifenesin3404.7 ng*hr/mLStandard Deviation 1661.1
Reference (Treatment B)Area Under Plasma Concentration-time Curve From Time 0 to the Last Measurable Concentration (AUC(0-t)) of Guaifenesin4447.1 ng*hr/mLStandard Deviation 1627.4
Primary

Maximum Observed Plasma Concentration (Cmax) of Guaifenesin

Pharmacokinetic Parameter (Cmax) Maximum observed plasma concentration.

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: The Pharmacokinetic (PK) parameters were calculated from individual plasma concentration-time data (using actual blood draw times).

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Maximum Observed Plasma Concentration (Cmax) of Guaifenesin857 ng/mLStandard Deviation 469
Reference (Treatment B)Maximum Observed Plasma Concentration (Cmax) of Guaifenesin1390 ng/mLStandard Deviation 575
Primary

Time to Maximum Observed Concentration (Tmax) of Guaifenesin

Pharmacokinetic Parameter (Tmax) Time of the maximum observed plasma concentration.

Time frame: 0 (pre-dose), 0.5, 0.75, 1, 1.5, 2, 3, 4, 4.5, 4.75, 5, 5.5, 6, 7, 8, 8.5, 8.75, 9, 9.5, 10, 11, 12, 14, 16 and 24 hours (post-dose) on Day 1 and 2

Population: PK Data Set

ArmMeasureValue (MEAN)Dispersion
Test (Treatment A)Time to Maximum Observed Concentration (Tmax) of Guaifenesin0.885 hrStandard Deviation 0.537
Reference (Treatment B)Time to Maximum Observed Concentration (Tmax) of Guaifenesin3.05 hrStandard Deviation 2.47
Secondary

Number of Adverse Events (AE) of Participants

Mild = AE does not limit usual activities;subject may experience slight discomfort; Moderate = AE results in some limitation of usual activities; subject may experience significant discomfort; Severe = AE results in an inability to carry out usual activities; Probable = Most likely that the AE was caused by study drug; Possible = Reasonable suspicion that the AE was caused by the study drug; Unlikely = Slight but remote chance that the AE was caused by study drug but the balance of judgment is that it was most likely not due to the study drug.

Time frame: Upto Day 2

ArmMeasureGroupValue (NUMBER)
Test (Treatment A)Number of Adverse Events (AE) of ParticipantsTEAE by severity: Severe0 Events
Test (Treatment A)Number of Adverse Events (AE) of ParticipantsRelationship to Drug: Possible6 Events
Test (Treatment A)Number of Adverse Events (AE) of ParticipantsTEAE by severity: Moderate0 Events
Test (Treatment A)Number of Adverse Events (AE) of ParticipantsRelationship to Drug: Unlikely1 Events
Test (Treatment A)Number of Adverse Events (AE) of ParticipantsRelationship to Drug: Probable0 Events
Test (Treatment A)Number of Adverse Events (AE) of ParticipantsTEAE by severity: Mild7 Events
Reference (Treatment B)Number of Adverse Events (AE) of ParticipantsRelationship to Drug: Probable0 Events
Reference (Treatment B)Number of Adverse Events (AE) of ParticipantsTEAE by severity: Moderate0 Events
Reference (Treatment B)Number of Adverse Events (AE) of ParticipantsTEAE by severity: Severe0 Events
Reference (Treatment B)Number of Adverse Events (AE) of ParticipantsTEAE by severity: Mild8 Events
Reference (Treatment B)Number of Adverse Events (AE) of ParticipantsRelationship to Drug: Possible3 Events
Reference (Treatment B)Number of Adverse Events (AE) of ParticipantsRelationship to Drug: Unlikely5 Events

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