Trial Outcomes & Findings for Efficacy and Safety of Dexlansoprazole on Heartburn Relief in Chinese Patients (NCT NCT02873689)

NCT ID: NCT02873689

Last Updated: 2019-07-05

Results Overview

The percentage of days with neither daytime nor nighttime heartburn was equal to (=) (the days that were heartburn-free during the treatment period) / (total number of days for which either a daytime or nighttime result was marked during treatment period)\*100 percent (%).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

217 participants

Primary outcome timeframe

Up to Week 4

Results posted on

2019-07-05

Participant Flow

Participants took part in the study at 20 investigative sites in China from 27 December 2016 to 19 April 2018.

Participants with diagnosis of symptomatic nonerosive gastroesophageal reflux disease (GERD) were enrolled in 1 of the 2 treatment groups: to receive dexlansoprazole 30 mg or placebo.

Participant milestones

Participant milestones
Measure
Placebo
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Overall Study
STARTED
109
108
Overall Study
Treated
108
107
Overall Study
COMPLETED
102
103
Overall Study
NOT COMPLETED
7
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Overall Study
Lack of Efficacy
1
0
Overall Study
Withdrawal by Subject
2
2
Overall Study
Protocol Violation
1
0
Overall Study
Adverse Event
2
2
Overall Study
Randomized but not Treated
1
1

Baseline Characteristics

The safety analysis set where participants for nighttime heartburn at baseline were available.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=108 Participants
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
n=107 Participants
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Total
n=215 Participants
Total of all reporting groups
Age, Continuous
45.1 years
STANDARD_DEVIATION 12.73 • n=108 Participants
43.6 years
STANDARD_DEVIATION 13.24 • n=107 Participants
44.3 years
STANDARD_DEVIATION 12.98 • n=215 Participants
Sex: Female, Male
Female
65 Participants
n=108 Participants
60 Participants
n=107 Participants
125 Participants
n=215 Participants
Sex: Female, Male
Male
43 Participants
n=108 Participants
47 Participants
n=107 Participants
90 Participants
n=215 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Race (NIH/OMB)
Asian
108 Participants
n=108 Participants
107 Participants
n=107 Participants
215 Participants
n=215 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Race (NIH/OMB)
White
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Region of Enrollment
China
108 Participants
n=108 Participants
107 Participants
n=107 Participants
215 Participants
n=215 Participants
Body mass index
23.935 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 3.4352 • n=108 Participants
23.701 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 3.5768 • n=107 Participants
23.819 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 3.5002 • n=215 Participants
Helicobacter pylori status
Positive
41 Participants
n=108 Participants
40 Participants
n=107 Participants
81 Participants
n=215 Participants
Helicobacter pylori status
Negative
67 Participants
n=108 Participants
67 Participants
n=107 Participants
134 Participants
n=215 Participants
Number of days with day and nighttime heartburn between study days -8 to -2
6.1 days
STANDARD_DEVIATION 1.27 • n=108 Participants
6.1 days
STANDARD_DEVIATION 1.06 • n=107 Participants
6.1 days
STANDARD_DEVIATION 1.17 • n=215 Participants
Number of days with nighttime heartburn between study days -8 to -2
5.2 days
STANDARD_DEVIATION 1.83 • n=108 Participants • The safety analysis set where participants for nighttime heartburn at baseline were available.
5.3 days
STANDARD_DEVIATION 1.60 • n=106 Participants • The safety analysis set where participants for nighttime heartburn at baseline were available.
5.2 days
STANDARD_DEVIATION 1.71 • n=214 Participants • The safety analysis set where participants for nighttime heartburn at baseline were available.
Number of days with daytime heartburn between study days -8 to -2
5.6 days
STANDARD_DEVIATION 1.45 • n=105 Participants • The safety analysis set where participants for daytime heartburn at baseline were available.
5.3 days
STANDARD_DEVIATION 1.61 • n=107 Participants • The safety analysis set where participants for daytime heartburn at baseline were available.
5.5 days
STANDARD_DEVIATION 1.54 • n=212 Participants • The safety analysis set where participants for daytime heartburn at baseline were available.
Severity of GERD symptoms: heartburn
None
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Severity of GERD symptoms: heartburn
Mild
29 Participants
n=108 Participants
33 Participants
n=107 Participants
62 Participants
n=215 Participants
Severity of GERD symptoms: heartburn
Moderate
56 Participants
n=108 Participants
55 Participants
n=107 Participants
111 Participants
n=215 Participants
Severity of GERD symptoms: heartburn
Severe
22 Participants
n=108 Participants
17 Participants
n=107 Participants
39 Participants
n=215 Participants
Severity of GERD symptoms: heartburn
Very Severe
1 Participants
n=108 Participants
2 Participants
n=107 Participants
3 Participants
n=215 Participants
Severity of GERD symptoms: acid regurgitation
None
27 Participants
n=108 Participants
33 Participants
n=107 Participants
60 Participants
n=215 Participants
Severity of GERD symptoms: acid regurgitation
Mild
42 Participants
n=108 Participants
43 Participants
n=107 Participants
85 Participants
n=215 Participants
Severity of GERD symptoms: acid regurgitation
Moderate
27 Participants
n=108 Participants
24 Participants
n=107 Participants
51 Participants
n=215 Participants
Severity of GERD symptoms: acid regurgitation
Severe
12 Participants
n=108 Participants
6 Participants
n=107 Participants
18 Participants
n=215 Participants
Severity of GERD symptoms: acid regurgitation
Very Severe
0 Participants
n=108 Participants
1 Participants
n=107 Participants
1 Participants
n=215 Participants
Severity of GERD symptoms: dysphagia
None
101 Participants
n=108 Participants
103 Participants
n=107 Participants
204 Participants
n=215 Participants
Severity of GERD symptoms: dysphagia
Mild
7 Participants
n=108 Participants
4 Participants
n=107 Participants
11 Participants
n=215 Participants
Severity of GERD symptoms: dysphagia
Moderate
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Severity of GERD symptoms: dysphagia
Severe
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Severity of GERD symptoms: dysphagia
Very Severe
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Severity of GERD symptoms: belching
None
59 Participants
n=108 Participants
62 Participants
n=107 Participants
121 Participants
n=215 Participants
Severity of GERD symptoms: belching
Mild
38 Participants
n=108 Participants
37 Participants
n=107 Participants
75 Participants
n=215 Participants
Severity of GERD symptoms: belching
Moderate
9 Participants
n=108 Participants
6 Participants
n=107 Participants
15 Participants
n=215 Participants
Severity of GERD symptoms: belching
Severe
2 Participants
n=108 Participants
2 Participants
n=107 Participants
4 Participants
n=215 Participants
Severity of GERD symptoms: belching
Very Severe
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Severity of GERD symptoms: epigastric pain
None
95 Participants
n=108 Participants
88 Participants
n=107 Participants
183 Participants
n=215 Participants
Severity of GERD symptoms: epigastric pain
Mild
11 Participants
n=108 Participants
16 Participants
n=107 Participants
27 Participants
n=215 Participants
Severity of GERD symptoms: epigastric pain
Moderate
2 Participants
n=108 Participants
2 Participants
n=107 Participants
4 Participants
n=215 Participants
Severity of GERD symptoms: epigastric pain
Severe
0 Participants
n=108 Participants
1 Participants
n=107 Participants
1 Participants
n=215 Participants
Severity of GERD symptoms: epigastric pain
Very Severe
0 Participants
n=108 Participants
0 Participants
n=107 Participants
0 Participants
n=215 Participants
Number of days with rescue medication use
1.7 days
STANDARD_DEVIATION 2.68 • n=108 Participants
0.9 days
STANDARD_DEVIATION 1.48 • n=107 Participants
1.3 days
STANDARD_DEVIATION 2.19 • n=215 Participants

PRIMARY outcome

Timeframe: Up to Week 4

Population: Full analysis set included all randomized participants who received at least 1 dose of study drug and had post-baseline (post Day-1) data for the appropriate efficacy variables.

The percentage of days with neither daytime nor nighttime heartburn was equal to (=) (the days that were heartburn-free during the treatment period) / (total number of days for which either a daytime or nighttime result was marked during treatment period)\*100 percent (%).

Outcome measures

Outcome measures
Measure
Placebo
n=108 Participants
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
n=107 Participants
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Percentage of Days With Neither Daytime Nor Nighttime Heartburn During Treatment
32.67 percentage of days
Interval 0.0 to 100.0
51.72 percentage of days
Interval 0.0 to 100.0

SECONDARY outcome

Timeframe: Up to Week 4

Population: Full analysis set included all randomized participants who received at least 1 dose of study drug and had post-baseline (post Day-1) data for the appropriate efficacy variables.

The percentage of days without nighttime heartburn was = (the days that were heartburn-free during the treatment period) / (total number of days for which nighttime result was marked during treatment period)\*100%.

Outcome measures

Outcome measures
Measure
Placebo
n=108 Participants
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
n=107 Participants
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Percentage of Days Without Nighttime Heartburn During Treatment
54.67 percentage of days
Interval 0.0 to 100.0
67.86 percentage of days
Interval 0.0 to 100.0

Adverse Events

Placebo

Serious events: 0 serious events
Other events: 15 other events
Deaths: 0 deaths

Dexlansoprazole 30 mg

Serious events: 1 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=108 participants at risk
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
n=107 participants at risk
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Injury, poisoning and procedural complications
Animal scratch
0.00%
0/108 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days after the last dose of double-blind study drug (approximately Week 8).
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.93%
1/107 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days after the last dose of double-blind study drug (approximately Week 8).
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.

Other adverse events

Other adverse events
Measure
Placebo
n=108 participants at risk
Dexlansoprazole placebo-matching capsule, orally, once daily for up to 4 weeks.
Dexlansoprazole 30 mg
n=107 participants at risk
Dexlansoprazole 30 mg, capsule, orally, once daily for up to 4 weeks.
Infections and infestations
Upper respiratory tract infection
7.4%
8/108 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days after the last dose of double-blind study drug (approximately Week 8).
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
4.7%
5/107 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days after the last dose of double-blind study drug (approximately Week 8).
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
Infections and infestations
Nasopharyngitis
6.5%
7/108 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days after the last dose of double-blind study drug (approximately Week 8).
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
3.7%
4/107 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days after the last dose of double-blind study drug (approximately Week 8).
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.

Additional Information

Medical Director

Takeda

Phone: +1-877-825-3327

Results disclosure agreements

  • Principal investigator is a sponsor employee The first study related publication will be a multi-center publication submitted within 24 months after conclusion or termination of a study at all sites. After such multi site publication, all proposed site publications and presentations will be submitted to sponsor for review 60 days in advance of publication. Site will remove Sponsor confidential information unrelated to study results. Sponsor can delay a proposed publication for another 60 days to preserve intellectual property.
  • Publication restrictions are in place

Restriction type: OTHER