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Comparison of TAK-438 (Vonoprazan) to Lansoprazole in the Treatment of Duodenal Ulcer Participants With or Without Helicobacter Pylori Infection

A Randomized Double-Blind, Double-Dummy, Phase 3 Study to Evaluate the Efficacy and Safety of Oral TAK-438 20 mg Compared to Lansoprazole 30 mg Once- or Twice-Daily in the Treatment of Endoscopically Confirmed Duodenal Ulcer Subjects With or Without Helicobacter Pylori Infection

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03050359
Enrollment
533
Registered
2017-02-10
Start date
2017-04-05
Completion date
2019-07-19
Last updated
2020-06-12

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

Conditions

Duodenal Ulcer

Keywords

Drug therapy, Gastrointestinal Diseases, Digestive System Diseases, Lansoprazole, Anti-Ulcer Agents, Gastrointestinal Agents, Proton Pump Inhibitors, Enzyme Inhibitors, Molecular Mechanisms of Pharmacological Action

Brief summary

The purpose of this study is to demonstrate the non-inferior efficacy of TAK-438 versus lansoprazole in the treatment of participants with duodenal ulcer.

Detailed description

The drug being tested in this study is called TAK-438. TAK-438 is being tested to treat people who have duodenal ulcers and also may or may not have Helicobacter pylori (HP) infection. This study will look at duodenal ulcer healing and also the elimination of HP in people who take TAK-438 versus lansoprazole. The study will enroll approximately 530 patients. Participants were randomly assigned (by chance, like flipping a coin) to one of the two treatment groups-which remained undisclosed to the participant and study doctor during the study (unless there is an urgent medical need): * TAK-438 20 mg * Lansoprazole 30 mg HP+ participants will be asked to take a TAK- 438 tablet and a lansoprazole capsule twice daily in conjunction with bismuth-containing quadruple therapy for 2 weeks, followed up by a TAK-438 tablet and a lansoprazole capsule once daily for up to 4 weeks. HP negative (HP-) participants will be asked to take a TAK-438 tablet and a lansoprazole capsule once daily for up to 6 weeks. This multi-center trial will be conducted China, Korea and Taiwan. The overall time to participate in this study is up to 10 weeks. Participants will make multiple visits plus final visit at 2 weeks or 4 weeks after last dose of study drug for a follow-up assessment.

Interventions

1 g Amoxicillin, 500 mg clarithromycin and 600 mg bismuth potassium citrate/bismuth tripotassium dicitrate, twice daily (BID).

DRUGTAK-438

TAK-438 tablets

DRUGLansoprazole

Lansoprazole capsules

TAK-438 placebo-matching tablets.

Lansoprazole placebo-matching capsules

Sponsors

Takeda
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1\. Has endoscopic evidence of active duodenal ulcer(s) (i.e., mucosal defects with white coating \[including cases associated with blood coagulation as long as there is no active bleeding\]) measuring 5 mm or larger in longest diameter within 14 days prior to randomization.

Exclusion criteria

1. Has received TAK-438 in a previous clinical study or as a therapeutic agent. 2. Has a history or clinical manifestations of significant central nervous system (CNS), cardiovascular, pulmonary, hepatic, renal, metabolic, gastrointestinal, urological, endocrine or hematological disease that, in the opinion of the investigator, would confound the study results or compromise participant safety. 3. Has been treated with Helicobacter pylori eradication therapy within 30 days prior to study treatment. 4. Has a diagnosis of duodenal malignancy or a duodenal ulcer whose morphology suggested malignancy as evident by endoscopy within 14 days prior to randomization. 5. Is suspected of having acute gastro-duodenal mucosal lesions (AGDML) as evident by endoscopy within 14 days prior to randomization. 6. Has a linear ulcer (including a linear ulcer scar) that has been confirmed as evident by endoscopy within 14 days prior to randomization. 7. Has active postoperative (eg, endoscopic mucosal resection / endoscopic submucosal dissection) ulcer(s) as confirmed by endoscopy within 14 days prior to randomization. 8. Has gastric ulcer that has been confirmed by endoscopy within 14 days prior to randomization. 9. Has ulcers for which medical therapy alone is not indicated (eg, perforation, pyloric stenosis, duodenal stenosis, major bleeding). 10. Has undergone therapeutic upper gastrointestinal (GI) endoscopic therapy (eg, endoscopic hemostasis or excision including biopsy) within 30 days prior to visit 1. 11. Has Zollinger-Ellison syndrome or gastric acid hypersecretion or those with a history of gastric acid hypersecretion. 12. Has undergone major surgical procedures within 30 days prior to Visit 1 or are scheduled to undergo surgical procedures that may affect gastric acid secretion (eg, abdominal surgery, vagotomy or craniotomy). 13. Has a history of malignancy or was treated for malignancy within 5 years before the start of the visit 1 (the participant may be included in the study if he/she has cured cutaneous basal cell carcinoma or cervical carcinoma in situ). 14. Has a known acquired immunodeficiency syndrome (AIDS) or hepatitis infection, including hepatitis virus carriers (hepatitis B surface-antigen \[HBsAg\] - or hepatitis C virus (HCV)-antibody-positive) (the participant may be included in the study if he/she is HCV-viral load-RNA-negative). 15. Laboratory tests performed prior to randomization revealed any of the following abnormalities in the participant: 1. Creatinine levels: \>2 mg/dL (\>177 μmol/L). 2. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST), or total bilirubin levels: \> upper limit of normal (ULN). 16. Has hypersensitivity to TAK-438, proton pump inhibitors (PPIs), bismuth, clarithromycin, or amoxicillin. Skin testing may be performed according to local standard practice (for HP+ participants only).

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Endoscopically Confirmed Healing of Duodenal UlcersWeek 4 or Week 6Endoscopic healing was defined as the disappearance of all white coats associated with duodenal ulcers as confirmed endoscopically.

Secondary

MeasureTime frameDescription
Percentage of Helicobacter Pylori Infected (HP+) Participants With Successful HP Eradication After 4 or 6 Weeks of Treatment4 weeks post treatment (Up to 10 weeks)HP infection status was determined by \^13C Urea Breath Test (\^13C-UBT). The urea breath test is used to detect infection with HP, a bacteria associated with stomach ulcers, by testing individual breath samples in a central laboratory.
Percentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcer at Week 4Week 4Endoscopic healing is defined as the disappearance of all white coats associated with duodenal ulcers as confirmed endoscopically.
Percentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Week 2 up to Week 6The percentage of participants with resolution of various gastrointestinal symptoms are reported as categories. Gastrointestinal symptoms included epigastric pain (postprandial, fasting, nocturnal), abdominal bloating, nausea/vomiting, heartburn and lack of appetite. The severity of subjective symptoms of erosive esophagitis were recorded as: none = 0, mild = 1, moderate = 2 or severe = 3.

Countries

China, Philippines, South Korea, Taiwan

Participant flow

Recruitment details

Participants took part in the study at 52 investigative sites in China, Korea, and Taiwan from 05 April 2017 to 19 July 2019.

Pre-assignment details

Participants with or without diagnosis of Helicobacter pylori (H. Pylori) Infection were enrolled and randomly assigned in 1:1 ratio to receive either TAK-438 20 mg or lansoprazole 30 mg along with matching placebo (to keep the blind).

Participants by arm

ArmCount
TAK-438 20 mg
HP - participants: TAK-438 20 mg, tablets, orally, once daily (QD) and lansoprazole placebo-matching capsules, orally, QD for up to 6 weeks. HP + participants: TAK-438 20 mg, tablets, orally, twice daily (BID) and lansoprazole placebo-matching capsules, orally, BID for first 2 weeks along with Bismuth-Containing Quadruple Therapy followed byTAK-438 20 mg, tablets, orally, QD and lansoprazole placebo-matching capsules, orally, QD for up to 4 weeks.
265
Lansoprazole 30 mg
HP - participants: lansoprazole 30 mg, capsules, orally, QD and TAK-438 placebo-matching tablets, orally, QD for up to 6 weeks. HP + participants: lansoprazole 30 mg, capsules, orally, BID and TAK-438 placebo-matching tablets, orally, BID for first 2 weeks along with Bismuth-Containing Quadruple Therapy followed by lansoprazole 30 mg, capsules, orally, QD and TAK-438 placebo-matching tablets, orally, BID for up to 4 weeks.
268
Total533

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up21
Overall StudyPregnancy10
Overall StudyPretreatment Event/Adverse Event510
Overall StudyRandomized But Not Treated20
Overall StudyReason Not Specified10
Overall StudySignificant Protocol Deviation23
Overall StudyVoluntary Withdrawal46

Baseline characteristics

CharacteristicTAK-438 20 mgTotalLansoprazole 30 mg
Age, Continuous42.0 years
STANDARD_DEVIATION 12.18
41.7 years
STANDARD_DEVIATION 12.53
41.4 years
STANDARD_DEVIATION 12.89
Body Mass Index (BMI)22.87 kg/m^2
STANDARD_DEVIATION 3.365
22.85 kg/m^2
STANDARD_DEVIATION 3.27
22.83 kg/m^2
STANDARD_DEVIATION 3.181
Characteristics of Current DU: Mean Number of Ulcers Found1.2 number of ulcers
STANDARD_DEVIATION 0.48
1.2 number of ulcers
STANDARD_DEVIATION 0.51
1.3 number of ulcers
STANDARD_DEVIATION 0.54
Characteristics of Current Duodenal Ulcers (DU): Location
Descending Part
3 Participants4 Participants1 Participants
Characteristics of Current Duodenal Ulcers (DU): Location
Superior Part (Including Bulb)
262 Participants528 Participants266 Participants
Characteristics of Current DU: Ulcer Morphology
Circular
110 Participants227 Participants117 Participants
Characteristics of Current DU: Ulcer Morphology
Ellipsoidal
109 Participants216 Participants107 Participants
Characteristics of Current DU: Ulcer Morphology
Other
46 Participants90 Participants44 Participants
Characteristics of Current DU: Ulcer Size
Giant (>=30 mm)
0 Participants1 Participants1 Participants
Characteristics of Current DU: Ulcer Size
Intermediate (>=10 mm/<=20 mm)
81 Participants159 Participants78 Participants
Characteristics of Current DU: Ulcer Size
Large (>20 mm/<30 mm)
1 Participants1 Participants0 Participants
Characteristics of Current DU: Ulcer Size
Minor (>=5 mm/<10 mm)
183 Participants371 Participants188 Participants
Characteristics of Current DU: Ulcer Size
Minuscule (<5 mm)
0 Participants1 Participants1 Participants
Consumption of Alcohol
Drink a Couple of Days Per Month
48 Participants106 Participants58 Participants
Consumption of Alcohol
Drink a Couple of Days Per Week
20 Participants41 Participants21 Participants
Consumption of Alcohol
Drink Everyday
6 Participants8 Participants2 Participants
Consumption of Alcohol
Never Drink
191 Participants378 Participants187 Participants
Consumption of Caffeine
No (Never Drink or Less Than 5 Times Per Week)
242 Participants494 Participants252 Participants
Consumption of Caffeine
Yes (More Than 5 Times Per Week)
23 Participants39 Participants16 Participants
Height166.1 centimeter (cm)
STANDARD_DEVIATION 8.21
166.6 centimeter (cm)
STANDARD_DEVIATION 8.16
167.1 centimeter (cm)
STANDARD_DEVIATION 8.09
History of DU: Time Since Onset of Current Ulcers1.0 days1.0 days1.0 days
History of DU: Type of Ulcers
Primary
230 Participants457 Participants227 Participants
History of DU: Type of Ulcers
Recurrent
35 Participants76 Participants41 Participants
History of H.pylori Eradication Therapy
No (Never Receive Any Therapy)
249 Participants512 Participants263 Participants
History of H.pylori Eradication Therapy
Yes (Therapy Received Ever)
16 Participants21 Participants5 Participants
H. pylori Infection Status
Negative
37 Participants75 Participants38 Participants
H. pylori Infection Status
Positive
226 Participants455 Participants229 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
265 Participants533 Participants268 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants
Region of Enrollment
China
252 Participants507 Participants255 Participants
Region of Enrollment
Korea, Republic Of
10 Participants18 Participants8 Participants
Region of Enrollment
Taiwan, Province Of China
3 Participants8 Participants5 Participants
Sex: Female, Male
Female
99 Participants191 Participants92 Participants
Sex: Female, Male
Male
166 Participants342 Participants176 Participants
Smoking Classification
The Participant Has Never Smoked
164 Participants329 Participants165 Participants
Smoking Classification
The Participant Is a Current Smoker
86 Participants170 Participants84 Participants
Smoking Classification
The Participant Is an Ex-smoker
15 Participants34 Participants19 Participants
Time Since Onset of Recurrent Ulcers1149.3 days
STANDARD_DEVIATION 910.72
1068.7 days
STANDARD_DEVIATION 859.12
999.7 days
STANDARD_DEVIATION 828.57
Use of NSAIDs or Low-dose Aspirin at the Time of Ulcer Onset
No
264 Participants530 Participants266 Participants
Use of NSAIDs or Low-dose Aspirin at the Time of Ulcer Onset
Yes
1 Participants3 Participants2 Participants
Weight63.45 kilograms (kg)
STANDARD_DEVIATION 12.342
63.72 kilograms (kg)
STANDARD_DEVIATION 11.86
64.00 kilograms (kg)
STANDARD_DEVIATION 11.383

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2630 / 268
other
Total, other adverse events
162 / 263113 / 268
serious
Total, serious adverse events
1 / 2633 / 268

Outcome results

Primary

Percentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcers

Endoscopic healing was defined as the disappearance of all white coats associated with duodenal ulcers as confirmed endoscopically.

Time frame: Week 4 or Week 6

Population: Full Analysis Set (FAS) included all participants who were randomized and received at least 1 dose of the study drug. Overall number of participants analyzed were participants with data available for analyses.

ArmMeasureValue (NUMBER)
TAK-438 20 mgPercentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcers96.9 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcers96.5 percentage of participants
95% CI: [-2.998, 3.791]
Secondary

Percentage of Helicobacter Pylori Infected (HP+) Participants With Successful HP Eradication After 4 or 6 Weeks of Treatment

HP infection status was determined by \^13C Urea Breath Test (\^13C-UBT). The urea breath test is used to detect infection with HP, a bacteria associated with stomach ulcers, by testing individual breath samples in a central laboratory.

Time frame: 4 weeks post treatment (Up to 10 weeks)

Population: Participants from FAS, included all participants who were randomized and received at least 1 dose of the study drug with H pylori positive status at Baseline with data available for analyses.

ArmMeasureValue (NUMBER)
TAK-438 20 mgPercentage of Helicobacter Pylori Infected (HP+) Participants With Successful HP Eradication After 4 or 6 Weeks of Treatment91.5 percentage of participants
Lansoprazole 30 mgPercentage of Helicobacter Pylori Infected (HP+) Participants With Successful HP Eradication After 4 or 6 Weeks of Treatment86.8 percentage of participants
95% CI: [-1.281, 10.69]
Secondary

Percentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcer at Week 4

Endoscopic healing is defined as the disappearance of all white coats associated with duodenal ulcers as confirmed endoscopically.

Time frame: Week 4

Population: FAS included all participants who were randomized and received at least 1 dose of the study drug. Overall number of participants analyzed were participants with data available for analyses.

ArmMeasureValue (NUMBER)
TAK-438 20 mgPercentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcer at Week 489.2 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcer at Week 488.4 percentage of participants
95% CI: [-4.901, 6.319]
Secondary

Percentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6

The percentage of participants with resolution of various gastrointestinal symptoms are reported as categories. Gastrointestinal symptoms included epigastric pain (postprandial, fasting, nocturnal), abdominal bloating, nausea/vomiting, heartburn and lack of appetite. The severity of subjective symptoms of erosive esophagitis were recorded as: none = 0, mild = 1, moderate = 2 or severe = 3.

Time frame: Week 2 up to Week 6

Population: FAS included all participants who were randomized and received at least 1 dose of the study drug. Number analyzed is number of participants analyzed for the particular category (symptom).

ArmMeasureGroupValue (NUMBER)
TAK-438 20 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Nausea/Vomiting85.2 percentage of participants
TAK-438 20 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Abdominal Bloating83.3 percentage of participants
TAK-438 20 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Heartburn100.0 percentage of participants
TAK-438 20 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Epigastric Pain (Fasting/Nocturnal)91.7 percentage of participants
TAK-438 20 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Lack of Appetite90.9 percentage of participants
TAK-438 20 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Epigastric Pain (Postprandial)87.7 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Lack of Appetite100.0 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Epigastric Pain (Postprandial)91.8 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Abdominal Bloating87.3 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Nausea/Vomiting94.4 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Heartburn95.5 percentage of participants
Lansoprazole 30 mgPercentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6Epigastric Pain (Fasting/Nocturnal)90.1 percentage of participants
Comparison: Epigastric Pain (Postprandial)95% CI: [-15.579, 7.344]
Comparison: Epigastric Pain (Fasting/Nocturnal)95% CI: [-5.23, 8.422]
Comparison: Abdominal Bloating95% CI: [-17.338, 9.401]
Comparison: Nausea/Vomiting95% CI: [-26.334, 7.815]
Comparison: Heartburn95% CI: [-4.159, 13.25]
Comparison: Lack of Appetite95% CI: [-21.104, 2.922]

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026