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Comparison of Two Omeprazole-Containing Products for Relief of Frequent Heartburn (MK-0764A-036)

Protocol PT 11-29: Randomized, Open-label, Cross-over Pilot Study to Evaluate and Compare Two Omeprazole Containing Products for Relief of Frequent Heartburn

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01587885
Enrollment
48
Registered
2012-04-30
Start date
2012-01-31
Completion date
2012-05-31
Last updated
2015-03-11

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

Conditions

Heartburn

Keywords

Frequent Heartburn, Omeprazole, Omeprazole, sodium bicarbonate drug combination, Gastrointestinal Agents, Therapeutic Uses, Pharmacologic Actions, Enzyme Inhibitors, Molecular Mechanisms of Pharmacological Action, Proton Pump Inhibitors

Brief summary

This study will evaluate a single ingredient product (omeprazole 20 mg) with a combination product capsule (omeprazole 20 mg + sodium bicarbonate 1100 mg) in participants with frequent heartburn.

Interventions

DRUGOmeprazole 20 mg + Sodium Bicarbonate 1100 mg

Capsules, orally

Tablets, orally

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Females of reproductive potential must demonstrate a negative urine pregnancy test and agree to use an acceptable method of birth control * Suffer from frequent heartburn * Refrain from taking non-study medicine or treatment for heartburn for the duration of the study * Be free of any clinically significant disease that requires a physician's care * Read and understand English

Exclusion criteria

* Any significant medical condition which is a contraindication to the use of omeprazole or sodium bicarbonate * Known hypersensitivity to the study drugs or any components * Experiencing any of the following: trouble or pain with swallowing food, vomiting with blood, bloody or black stools * Participation in another investigational study within 4 weeks prior to the screening visit.

Design outcomes

Primary

MeasureTime frameDescription
Time-to-onset of Heartburn ReliefStart of treatment until onset of heartburn relief, up to 24 hoursTime-to-onset of heartburn relief was defined as earliest time following start of treatment that participant experienced a reduction of at least one grade from baseline in the severity of heartburn. Severity of heartburn was evaluated by the participant using the 4-point Likert Scale, which rated heartburn severity as follows: Absent (0): Heartburn is not present. Mild (1): Heartburn did not last long or was easily tolerated. Moderate (2): Heartburn caused discomfort and interrupted usual activities. Severe (3): Heartburn caused great interference with usual activities and may have been incapacitating.

Secondary

MeasureTime frameDescription
Percentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over TimeStart of treatment until onset of heartburn relief, up to 72 hoursOnset of heartburn relief was defined as a reduction of at least one grade from baseline in the severity of heartburn following start of treatment. Severity of heartburn was evaluated by the participant using the 4-point Likert Scale, which rated heartburn severity as follows: Absent (0): Heartburn is not present. Mild (1): Heartburn did not last long or was easily tolerated. Moderate (2): Heartburn caused discomfort and interrupted usual activities. Severe (3): Heartburn caused great interference with usual activities and may have been incapacitating.
Number of Participants Preferring Each Treatment for Heartburn Control: Final Subjective QuestionnaireAt end of study (approx. Study Day 40)Participants completed a Final Subjective Questionnaire for Treatment Preference. Question 1 asked participants to compare the 2 treatments for Heartburn Control.
Number of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective QuestionnaireAt end of study (approx. Study Day 40)Participants completed a Final Subjective Questionnaire for Treatment Preference. Question 2 asked participants to compare the 2 treatments for Heartburn Relief.
Number of Participants Preferring Each Treatment Overall: Final Subjective QuestionnaireAt end of study (approx. Study Day 40)Participants completed a Final Subjective Questionnaire for Treatment Preference. Question 3 asked participants to compare the 2 treatments for their overall preference.
Percentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life QuestionnaireEnd of treatment period 1 and end of treatment period 2End of Treatment Quality of Life was based on a questionnaire regarding quality-of-life issues associated with heartburn, completed by participants at the end of treatment period 1 and the end of treatment period 2.

Participant flow

Participants by arm

ArmCount
All Participants
All participants who were randomized and received study drug.
48
Total48

Withdrawals & dropouts

PeriodReasonFG000FG001
Treatment Period 1Failure to Return01
Treatment Period 1Protocol Violation02

Baseline characteristics

CharacteristicAll Participants
Age, Continuous48.3 years
STANDARD_DEVIATION 12.57
Sex: Female, Male
Female
31 Participants
Sex: Female, Male
Male
17 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 450 / 48
serious
Total, serious adverse events
0 / 450 / 48

Outcome results

Primary

Time-to-onset of Heartburn Relief

Time-to-onset of heartburn relief was defined as earliest time following start of treatment that participant experienced a reduction of at least one grade from baseline in the severity of heartburn. Severity of heartburn was evaluated by the participant using the 4-point Likert Scale, which rated heartburn severity as follows: Absent (0): Heartburn is not present. Mild (1): Heartburn did not last long or was easily tolerated. Moderate (2): Heartburn caused discomfort and interrupted usual activities. Severe (3): Heartburn caused great interference with usual activities and may have been incapacitating.

Time frame: Start of treatment until onset of heartburn relief, up to 24 hours

Population: Participants in the modified Intent-to-Treat (mITT) population, consisting of all randomized participants who received study drug and who provided efficacy data for at least one of the study drugs for the variable and time point analyzed.~One participant completed the study but the participant's data was corrupted and therefore not included.

ArmMeasureValue (MEDIAN)
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgTime-to-onset of Heartburn Relief30.0 Minutes
Omeprazole 20 mgTime-to-onset of Heartburn Relief60.0 Minutes
p-value: <0.048Regression, Cox
Secondary

Number of Participants Preferring Each Treatment for Heartburn Control: Final Subjective Questionnaire

Participants completed a Final Subjective Questionnaire for Treatment Preference. Question 1 asked participants to compare the 2 treatments for Heartburn Control.

Time frame: At end of study (approx. Study Day 40)

Population: Participants in the Intent-to-Treat (ITT) population, consisting of all participants who were randomized, took study medication at the beginning of treatment period 1, and provided data.

ArmMeasureGroupValue (NUMBER)
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Control: Final Subjective QuestionnairePreferred omeprazole+sodium bicarbonate14 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Control: Final Subjective QuestionnairePreferred omeprazole17 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Control: Final Subjective QuestionnairePreferred both equally9 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Control: Final Subjective QuestionnaireMissing data8 participants
Secondary

Number of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective Questionnaire

Participants completed a Final Subjective Questionnaire for Treatment Preference. Question 2 asked participants to compare the 2 treatments for Heartburn Relief.

Time frame: At end of study (approx. Study Day 40)

Population: Participants in the ITT population, consisting of all participants who were randomized, took study medication at the beginning of treatment period 1, and provided data.

ArmMeasureGroupValue (NUMBER)
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective QuestionnairePreferred omeprazole+sodium bicarbonate16 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective QuestionnairePreferred omeprazole16 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective QuestionnairePreferred both equally7 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective QuestionnairePreferred neither1 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment for Heartburn Relief: Final Subjective QuestionnaireMissing data8 participants
Secondary

Number of Participants Preferring Each Treatment Overall: Final Subjective Questionnaire

Participants completed a Final Subjective Questionnaire for Treatment Preference. Question 3 asked participants to compare the 2 treatments for their overall preference.

Time frame: At end of study (approx. Study Day 40)

Population: Participants in the ITT population, consisting of all participants who were randomized, took study medication at the beginning of treatment period 1, and provided data.

ArmMeasureGroupValue (NUMBER)
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment Overall: Final Subjective QuestionnairePreferred omeprazole+sodium bicarbonate17 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment Overall: Final Subjective QuestionnairePreferred omeprazole17 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment Overall: Final Subjective QuestionnairePreferred both equally6 participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgNumber of Participants Preferring Each Treatment Overall: Final Subjective QuestionnaireMissing data8 participants
Secondary

Percentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaire

End of Treatment Quality of Life was based on a questionnaire regarding quality-of-life issues associated with heartburn, completed by participants at the end of treatment period 1 and the end of treatment period 2.

Time frame: End of treatment period 1 and end of treatment period 2

Population: Participants in the mITT population, consisting of all randomized participants who received study drug and who provided efficacy data for at least one of the study drugs for the variable and time point analyzed.

ArmMeasureGroupValue (NUMBER)
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireheartburn symtoms caused trouble falling asleep27.5 percentage of partcipants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireslept on incline due to heartburn symptoms35.0 percentage of partcipants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireheartburn symptoms awoke participant22.5 percentage of partcipants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnairemedicine helped with full night's rest90.0 percentage of partcipants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireheartburn symptoms affected daily activities30.0 percentage of partcipants
Omeprazole 20 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnairemedicine helped with full night's rest95.0 percentage of partcipants
Omeprazole 20 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireheartburn symptoms affected daily activities30.0 percentage of partcipants
Omeprazole 20 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireheartburn symtoms caused trouble falling asleep25.0 percentage of partcipants
Omeprazole 20 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireheartburn symptoms awoke participant32.5 percentage of partcipants
Omeprazole 20 mgPercentage of Participants Affected By Heartburn Symptoms: End of Treatment Quality of Life Questionnaireslept on incline due to heartburn symptoms47.5 percentage of partcipants
Secondary

Percentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time

Onset of heartburn relief was defined as a reduction of at least one grade from baseline in the severity of heartburn following start of treatment. Severity of heartburn was evaluated by the participant using the 4-point Likert Scale, which rated heartburn severity as follows: Absent (0): Heartburn is not present. Mild (1): Heartburn did not last long or was easily tolerated. Moderate (2): Heartburn caused discomfort and interrupted usual activities. Severe (3): Heartburn caused great interference with usual activities and may have been incapacitating.

Time frame: Start of treatment until onset of heartburn relief, up to 72 hours

Population: Participants in the mITT population, consisting of all randomized participants who received study drug and who provided efficacy data for at least one of the study drugs for the variable and time point analyzed.~One participant completed the study but the participant's data was corrupted and therefore not included.

ArmMeasureGroupValue (NUMBER)
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤30 minutes52.3 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤180 minutes100.0 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤90 minutes90.9 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤1440 minutes (24 hours)100.0 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤60 minutes75.0 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤2880 minutes (48 hours)100.0 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤120 minutes95.5 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤4320 minutes (72 hours)100.0 percentage of participants
Omeprazole 20 mg + Sodium Bicarbonate 1100 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤15 minutes20.5 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤4320 minutes (72 hours)100.0 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤15 minutes13.6 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤30 minutes27.3 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤60 minutes61.4 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤90 minutes75.0 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤120 minutes88.6 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤180 minutes90.9 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤1440 minutes (24 hours)93.2 percentage of participants
Omeprazole 20 mgPercentage of Participants Experiencing Onset and Demonstrating Duration of Heartburn Relief Over Time≤2880 minutes (48 hours)95.5 percentage of participants

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