Duodenal UlcerPhase 3NCT03050359
Comparison of TAK-438 (Vonoprazan) to Lansoprazole in the Treatment of Duodenal Ulcer Participants With or Without Helicobacter Pylori Infection
A Phase 3 study testing TAK-438, Lansoprazole and Bismuth-Containing Quadruple Therapy in people with Duodenal Ulcer, run by Takeda at 81 sites in 4 countries.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Duodenal Ulcer
- What is being tested?
- TAK-438, Lansoprazole and Bismuth-Containing Quadruple Therapy
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 533 participants
- Where
- 81 sitesin 4 countries
- Study dates
- 5 Apr 2017to 19 Jul 2019
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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.
Who cannot join
- Has received TAK-438 in a previous clinical study or as a therapeutic agent.
- 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.
- Has been treated with Helicobacter pylori eradication therapy within 30 days prior to study treatment.
- Has a diagnosis of duodenal malignancy or a duodenal ulcer whose morphology suggested malignancy as evident by endoscopy within 14 days prior to randomization.
- Is suspected of having acute gastro-duodenal mucosal lesions (AGDML) as evident by endoscopy within 14 days prior to randomization.
- Has a linear ulcer (including a linear ulcer scar) that has been confirmed as evident by endoscopy within 14 days prior to randomization.
Show all 18Show fewer
- Has active postoperative (eg, endoscopic mucosal resection / endoscopic submucosal dissection) ulcer(s) as confirmed by endoscopy within 14 days prior to randomization.
- Has gastric ulcer that has been confirmed by endoscopy within 14 days prior to randomization.
- Has ulcers for which medical therapy alone is not indicated (eg, perforation, pyloric stenosis, duodenal stenosis, major bleeding).
- Has undergone therapeutic upper gastrointestinal (GI) endoscopic therapy (eg, endoscopic hemostasis or excision including biopsy) within 30 days prior to visit 1.
- Has Zollinger-Ellison syndrome or gastric acid hypersecretion or those with a history of gastric acid hypersecretion.
- 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).
- 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).
- 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).
- Laboratory tests performed prior to randomization revealed any of the following abnormalities in the participant:
- Creatinine levels: >2 mg/dL (>177 μmol/L).
- Alanine aminotransferase (ALT) or aspartate aminotransferase (AST), or total bilirubin levels: > upper limit of normal (ULN).
- 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).
Trial locations and contacts
81 sites in 4 countries.
81 sites in 4 countries
China53 sites
Beijing Chao Yang Hospital
Beijing, Beijing Municipality, 100020
The General Hospital of People's Armed Police Forces China
Beijing, Beijing Municipality, 100039
The Central Hospital of China Aerospace Corporation
Beijing, Beijing Municipality, 100049
Beijing Friendship Hospital, Capital Medical University
Beijing, Beijing Municipality, 100050
Beijing Tong Ren Hospital, Capital Medical University
Beijing, Beijing Municipality, 100730
Peking University First Hospital
Beijing,P.R., Beijing Municipality, 100034
The First Hospital of Jilin University
Changchun, Jilin, 130000
Jilin 4th People'S hospital
Changchun, Jilin, 130012
China-Japan Union Hospital of Jilin University
Changchun, Jilin, 130033
The 2nd Xiangya Hospital Central South University
Changsha, Hu'nan, 410011
The First People's Hospital of Changzhou
Changzhou, Jiangsu, 213003
Chenzhou No.1 People's Hospital
Chenzhou, Hu'nan, 432000
The Second Affiliated Hospital of Chongqing Medical University
Chongqing, Chongqing Municipality, 40010
The First People's Hospital of Foshan
Foshan, Guangdong, 528000
Fuzhou General Hospital of Nanjing Military Area Command of Chinese PLA
Fuzhou, Fujian, 350025
Guangdong General Hospital
Guangzhou, Guangdong, 510080
The Sixth Affiliated Hospital of Sun Yat-Sen University
Guangzhou, Guangdong, 510655
Haikou People's Hospital
Haikou, Hainan, 570208
1st Affiliated Hospital of Zhejiang University
Hangzhou, Zhejiang, 310003
Zhejiang Hospital
Hangzhou, Zhejiang, 310013
Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine
Hangzhou, Zhejiang, 310016
The Second Affiliated Hospital Zhejiang University School of Medicine
Hangzhou, 310009
The First Affiliated Hospital of Anhui Medical University
Hefei, Anhui, 230024
Ruijin Hospital, Shanghai Jiaotong Uni. School of Med.
Huangpu Qu, Shanghai Municipality, 200020
Jilin central Hospital
Jilin City, Jilin, 132011
Jingzhou Central Hospital
Jingzhou, Hubei, 434020
The First Affiliated Hospital of Kunming Medical College
Kunming, Yun'nan, 650032
The First Affiliated Hospital of NanChang University
Nanchang, Jiangxi, 330006
Jiangxi Nanchang 3rd Hospital
Nanchang, Jiangxi, 330009
Nanjing First Hospital
Nanjing, Jiangsu, 210012
Jiangxi Pingxiang People's Hospital
Pingxiang, Jiangxi, 337055
Zhongshan Hospital Fudan University
Shanghai, Shanghai Municipality, 200032
Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
Shanghai, Shanghai Municipality, 200092
Shanghai Tongji Hospital
Shanghai, Shanghai Municipality, 200442
General Hospital of Shenyang Military Region
Shenyang, Liaoning, 110016
Peking University Shenzhen Hospital
Shenzhen, Guangdong, 518000
Shiyan Taihe Hospital
Shiyan, Hebei, 442000
Jilin Siping Central Hospital
Siping, Jilin, 136000
Tianjin Medical University Affiliated General Hospital
Tianjin, Tianjin Municipality, 300052
The Second Affiliated Hospital of Wenzhou Medical College
Wenzhou, Zhejiang, 325027
Union Hospital of Tongji Medical College of Huazhong Science and Techology University
Wuhan, Hubei, 420104
Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology
Wuhan, Hubei, 430030
Wuhan General Hospital of Guangzhou Military
Wuhan, Hubei, 430070
Yijishan hospital of Wan nan Medical college
Wuhu, Anhui, 241001
Wuxi 4th People's Hospital
Wuxi, Jiangsu, 214062
Wuxi People's Hospital
Wuxi, Jiangsu, 241023
The 2nd Hospital of Xi An Jiaotong University
Xi'an, Shan'xi, 710004
The First Affiliated Hospital of Xiamen University
Xiamen, Fujian, 361003
People's Hospital of Qinghai Province
Xining, Qinghai, 810007
General Hospital of Ningxia Medical University
Yinchuan, Ningxia Hui, 750004
Changsha Central Hospital
Yuhua, Hu'nan, 410018
Zhangzhou Hospital
Zhangzhou, Fujian, 363000
Affiliated Hospital of Jiangsu University
Zhenjiang, Jiangsu, 212001
South Korea17 sites
Korea University Ansan Hospital
Ansan-si, Gyeonggi-do, 15355
The Catholic University of Korea, Bucheon St. Mary s Hospital
Bucheon-si, Gyeonggi-do, 14647
Dong-A University Hospital
Busan, 49201
Kyungpook National University Hospital
Daegu, 41944
Yeungnam University Hospital
Daegu, 42415
Hanyang Univerisy Guri Hospital
Guri-si, Gyeonggi-do, 11923
Chonnam National University Hospital
Gwangju, 61469
Wonkwang University Hospital
Iksan-si, Jeollabuk-do, 54538
The Catholic University of Korea, Incheon St. Mary's Hospital
Incheon, 21431
Gachon University Gil Medical Center
Incheon, 21565
Chonbuk National University Hospital
Jeonju, Jeollabuk-do, 54907
Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, 13620
Korea University Anam Hospital
Seoul, 02841
Kangbuk Samsung Hospital
Seoul, 03181
Severance Hospital, Yonsei University
Seoul, 03722
The Catholic University of Korea, St. Vincent's Hospital
Suwon, Gyeonggi-do, 16247
Yonsei University Wonju Severance Christian Hospital
Wŏnju, Gangwon-do, 26426
Philippines6 sites
Cebu Doctors University Hospital
Cebu City, 6000
St. Luke's Medical Center Global City
City of Taguig, 1634
De La Salle University Medical Center
Dasmarinas City, Cavite, 4114
Davao Doctors Hospital
Davao City, 8000
West Visayas State University Medical Center
Iloilo City, 5000
Philippine General Hospital
Manila, 1000
Taiwan5 sites
China Medical University Hospital
Taichung, 40447
National Taiwan University Hospital
Taipei, 100
Taipei Veterans General Hospital
Taipei, 11217
Tri-Service General Hospital
Taipei, 11490
Chang Gung Memorial Hospital, Linkou
Taoyuan County, 333
About this study
Official title: 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
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.
Read the 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.
- Conditions
- Duodenal Ulcer
- Being tested
- TAK-438, Lansoprazole, TAK-438 Placebo, Lansoprazole Placebo, Bismuth-Containing Quadruple Therapy
- Keywords
- Drug therapy, Gastrointestinal Diseases, Digestive System Diseases, Lansoprazole, Anti-Ulcer Agents, Gastrointestinal Agents, Proton Pump Inhibitors, Enzyme Inhibitors, Molecular Mechanisms of Pharmacological Action
- Medical subject headings
- Duodenal Ulcer, Gastrointestinal Diseases, Digestive System Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TAK-438Drug
Also called Vonoprazan
TAK-438 tablets
LansoprazoleDrug
Also called Prevacid
Lansoprazole capsules
TAK-438 PlaceboDrug
TAK-438 placebo-matching tablets.
Lansoprazole PlaceboDrug
Lansoprazole placebo-matching capsules
Bismuth-Containing Quadruple TherapyDrug
1 g Amoxicillin, 500 mg clarithromycin and 600 mg bismuth potassium citrate/bismuth tripotassium dicitrate, twice daily (BID).
| Study group | Role | What they receive |
|---|---|---|
| TAK-438 20 mg | Experimental | H. pylori negative (HP -) participants: TAK-438 20 mg, tablets, orally, once daily (QD) and lansoprazole placebo-matching capsules, orally, QD for up to 6 weeks. H. pylori positive (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. Receives: Drug: TAK-438; Drug: Lansoprazole Placebo; Drug: Bismuth-Containing Quadruple Therapy |
| Lansoprazole 30 mg | Experimental | H. pylori negative (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. Receives: Drug: Lansoprazole; Drug: TAK-438 Placebo; Drug: Bismuth-Containing Quadruple Therapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: Week 4 or Week 6
Secondary outcomes (3)
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.
Measured: 4 weeks post treatment (Up to 10 weeks)
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.
Measured: Week 4
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.
Measured: Week 2 up to Week 6
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Feb 2017
- Study start5 Apr 2017
- Primary completion19 Mar 2019
- Study completion19 Jul 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Duodenal UlcerStudies of the same condition, open and under way.
- More trials run by TakedaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 533 participants (actual)
Sponsor and investigators
- Lead sponsor
- Takeda
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director Clinical Science, Study director, Takeda
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03050359
- Sponsor's protocol ID
- TAK-438_304
- Other IDs
- U1111-1139-0293, CTR20170104
- Status last verified
- May 2020
- First submitted
- 8 Feb 2017
- Last updated
- 12 Jun 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Takeda makes patient-level, de-identified data sets and associated documents available for all interventional studies after applicable marketing approvals and commercial availability have been received (or program is completely terminated), an opportunity for the primary publication of the research and final report development has been allowed, and other criteria have been met as set forth in Takeda's Data Sharing Policy (see www.TakedaClinicalTrials.com for details). To obtain access, researchers must submit a legitimate academic research proposal for adjudication by an independent review panel, who will review the scientific merit of the research and the requestor's qualifications and conflict of interest that can result in potential bias. Once approved, qualified researchers who sign a data sharing agreement are provided access to these data in a secure research environment.
Publications
Hou X, Wang J, Du Q, Tian D, Hu N, Liu D, Zhou F, Xie L, Gu L, Kudou K, Zhang S. Efficacy and Safety of Vonoprazan-Based Quadruple Therapy for the Eradication of Helicobacter pylori in Patients with Peptic Ulcers: A Pooled Analysis of Two Randomized, Double-Blind, Double-Dummy, Phase 3 Trials. Biol Pharm Bull. 2024;47(8):1405-1414. doi: 10.1248/bpb.b24-00011.
PubMed 39085080
Study at a glance
From the registry record, last updated by the sponsor on 12 Jun 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT03050359
- Acronym / sponsor ID
- TAK-438_304
- Conditions
- Duodenal Ulcer
- Keywords
- Drug therapy, Gastrointestinal Diseases, Digestive System Diseases, Lansoprazole, Anti-Ulcer Agents, Gastrointestinal Agents, Proton Pump Inhibitors, Enzyme Inhibitors
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 533 participants (actual)
- Lead sponsor
- TakedaIndustry (pharma, biotech, devices)
- Study start
- 5 Apr 2017 (actual)
- Primary completion
- 19 Mar 2019 (actual)
- Study completion
- 19 Jul 2019 (actual)
- First posted
- 10 Feb 2017 (actual)
- Results
- Posted 12 Jun 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| TAK-438 20 mg | Experimental | Drug: TAK-438, Drug: Lansoprazole Placebo, Drug: Bismuth-Containing Quadruple TherapyH. pylori negative (HP -) participants: TAK-438 20 mg, tablets, orally, once daily (QD) and lansoprazole placebo-matching capsules, orally, QD for up to 6 weeks. H. pylori positive (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. |
| Lansoprazole 30 mg | Experimental | Drug: Lansoprazole, Drug: TAK-438 Placebo, Drug: Bismuth-Containing Quadruple TherapyH. pylori negative (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. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- 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.
Key exclusion criteria (18 listed)
- Has received TAK-438 in a previous clinical study or as a therapeutic agent.
- 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.
- Has been treated with Helicobacter pylori eradication therapy within 30 days prior to study treatment.
- Has a diagnosis of duodenal malignancy or a duodenal ulcer whose morphology suggested malignancy as evident by endoscopy within 14 days prior to randomization.
- Is suspected of having acute gastro-duodenal mucosal lesions (AGDML) as evident by endoscopy within 14 days prior to randomization.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TAK-438Also: VonoprazanTAK-438 tablets | Drug | TAK-438 20 mg |
| LansoprazoleAlso: PrevacidLansoprazole capsules | Drug | Lansoprazole 30 mg |
| TAK-438 PlaceboTAK-438 placebo-matching tablets. | Drug | Lansoprazole 30 mg |
| Lansoprazole PlaceboLansoprazole placebo-matching capsules | Drug | TAK-438 20 mg |
| Bismuth-Containing Quadruple Therapy1 g Amoxicillin, 500 mg clarithromycin and 600 mg bismuth potassium citrate/bismuth tripotassium dicitrate, twice daily (BID). | Drug | Lansoprazole 30 mg, TAK-438 20 mg |
Primary outcome
Percentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcers
Time frame: Week 4 or Week 6
Endoscopic healing was defined as the disappearance of all white coats associated with duodenal ulcers as confirmed endoscopically.
3 secondary outcomes
Percentage of Helicobacter Pylori Infected (HP+) Participants With Successful HP Eradication After 4 or 6 Weeks of Treatment
Time frame: 4 weeks post treatment (Up to 10 weeks)
Percentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcer at Week 4
Time frame: Week 4
Percentage of Participants With Posttreatment Resolution of Gastrointestinal Symptoms Associated With Duodenal Ulcer at Weeks 2 Through 6
Time frame: Week 2 up to Week 6
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jun 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 39085080Hou X, Wang J, Du Q, Tian D, Hu N, Liu D, Zhou F, Xie L, Gu L, Kudou K, Zhang S. Efficacy and Safety of Vonoprazan-Based Quadruple Therapy for the Eradication of Helicobacter pylori in Patients with Peptic Ulcers: A Pooled Analysis of Two Randomized, Double-Blind, Double-Dummy, Phase 3 Trials. Biol Pharm Bull. 2024;47(8):1405-1414. doi: 10.1248/bpb.b24-00011.
- Individual participant dataSharing planned: Yes. Takeda makes patient-level, de-identified data sets and associated documents available for all interventional studies after applicable marketing approvals and commercial availability have been received (or program is completely terminated), an opportunity for the primary publication of the research and final report development has been allowed, and other criteria have been met as set forth in Takeda's Data Sharing Policy (see www.TakedaClinicalTrials.com for details). To obtain access, researchers must submit a legitimate academic research proposal for adjudication by an independent review panel, who will review the scientific merit of the research and the requestor's qualifications and conflict of interest that can result in potential bias. Once approved, qualified researchers who sign a data sharing agreement are provided access to these data in a secure research environment.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Medical Director Clinical Science study director
Takeda
81 sites in 4 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing TAK-438, Lansoprazole and Bismuth-Containing Quadruple Therapy in people with Duodenal Ulcer, run by Takeda at 81 sites in 4 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 81 sites in China, South Korea, Philippines, Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 12 Jun 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Participants With Endoscopically Confirmed Healing of Duodenal Ulcers (time frame: Week 4 or Week 6). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03050359, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jun 2020.