Erosive EsophagitisPhase 3NCT02388724
Efficacy and Safety of Oral Once-Daily Vonoprazan (TAK-438) in Participants With Erosive Esophagitis
A Phase 3 study testing Vonoprazan and Lansoprazole in people with Erosive Esophagitis, run by Takeda at 64 sites in 4 countries.
Trial summary
The purpose of the study is to demonstrate the efficacy of vonoprazan (TAK-438) versus lansoprazole in the treatment of erosive esophagitis classified as Los Angeles (LA) classification grades A to D at Week 8. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Erosive Esophagitis
- What is being tested?
- Vonoprazan and Lansoprazole
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 481 participants
- Where
- 64 sitesin 4 countries
- Study dates
- 24 Mar 2015to 27 Jul 2017
- 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
- In the opinion of the investigator, the participant is capable of understanding and complying with protocol requirements.
- The participant or, when applicable, the participant's legally acceptable representative signs and dates a written, informed consent form and any required privacy authorization prior to the initiation of any study procedures.
- Has been confirmed in an endoscopy to have erosive esophagitis, ie, the Los Angeles (LA) classification grades A to D within 7 days of the start of the Day 1 (Visit 2).
- Note: The recruitment goal is to ensure that those with LA classification grade C/D will account for more than 30% of all participants enrolled (144/480), with no further recruitment of those with grade A/B considered when they account for more than 70% (336/480) of all participants.
- Is aged 18 years old or older (or the local age of consent if that is older), male or female, at the time of signing an informed consent, and is being treated on an outpatient basis for erosive esophagitis, including those admitted temporarily for examination.
- A female participant of childbearing potential who is sexually active with a nonsterilized male partner agrees to use routinely adequate contraception from signing of informed consent throughout the duration of the study.
Who cannot join
- Has received any investigational compound within 84 days prior to the start of the Observation phase.
- Has received TAK-438 in a previous clinical study or as a therapeutic agent.
- Is an immediate family member, study site employee, or is in a dependant relationship with a study site employee who is involved in conduct of this study (eg, spouse, parent, child, sibling) or may consent under duress.
- Has, in the judgment of the investigator, clinically significant abnormal hematological parameters of hemoglobin, hematocrit, or erythrocytes at Screening.
- Has a history or clinical manifestations of serious central nerve system (CNS), cardiovascular, pulmonary, hepatic, renal, metabolic, gastrointestinal, urological, endocrine or hematological disease.
- Has a history of hypersensitivity or allergies to TAK-438 (including its excipients*) or to proton pump inhibitors (PPIs).
Show all 22Show fewer
- D-mannitol, crystalline cellulose, hydroxypropyl cellulose, fumaric acid, croscarmellose sodium, magnesium stearate, hypromellose, macrogol 6000, titanium oxide, yellow iron sesquioxide and iron sesquioxide.
- Has a history of drug abuse (defined as any illicit drug use) or a history of alcohol abuse within 1 year prior to the Observation Phase (Visit 1).
- Is required to take excluded medications.
- If female, the participant is pregnant or lactating or intending to become pregnant before, during, or within 1 month after participating in this study; or intending to donate ova during such time period.
- Has participated in another clinical study within the past 30 days from Visit 1.
- Has co-morbidities that could affect the esophagus (eosinophilic esophagitis, esophageal varices, scleroderma, viral or fungal infection, esophageal strictures), a history of radiotherapy or cryotherapy for the esophagus; those with corrosive or physiochemical injury (with the possible inclusion in the study of those with Schatzki's ring or Barrett's esophagus).
- Has a history of surgical procedures that may affect the esophagus (eg, fundoplication and mechanical dilatation for esophageal strictures excluding Schatzki's ring) or a history of gastric or duodenal surgery excluding endoscopic removal of benign polyps.
- Developed acute upper gastrointestinal bleeding, gastric ulcer (a mucosal defect with white coating) or duodenal ulcer (a mucosal defect with white coating), within 30 days before the start of the Observation Phase (Visit 1) (with the possible inclusion of those with gastric or duodenal erosion).
- Has Zollinger-Ellison syndrome or gastric acid hypersecretion or a history of gastric acid hypersecretion.
- Is scheduled for surgery that requires hospitalization or requires surgical treatment during his/her participation in the study.
- Has a history of malignancy or was treated for malignancy within 5 years before the start of the Observation Phase (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 acquired immunodeficiency syndrome (AIDS) or hepatitis, including hepatitis virus carriers: hepatitis B surface antigen (HBsAg) positive, or hepatitis C virus (HCV)-antibody-positive (the participant may be included in the study if he/she is HCV-antigen or HCV-ribonucleic acid [RNA]-negative).
- Laboratory tests performed at the start of the Early Observation Phase (visit 1) 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).
- Is active in the Screening Period after the closure of enrollment identified by the Sponsor or the number of participants randomized with LA classification A/B or C/D have reached the required sample size.
Trial locations and contacts
64 sites in 4 countries.
64 sites in 4 countries
China32 sites
Beijing Chao Yang Hospital
Beijing, Beijing Municipality, 100020
China-Japan Friendship hospital
Beijing, Beijing Municipality, 100029
Peking Union Medical College Hospital
Beijing, Beijing Municipality, 100032
Beijing Tongren Hospital, Capital Medical Univeristy
Beijing, Beijing Municipality, 100370
PLA.The Military General Hospital of Beijing
Beijing, Beijing Municipality, 100700
Beijing Friendship Hospital, Capital Medical University
Beijing, 100050
Study site
Beijing
No.2 Hospital Affiliated to Jilin University
Changchun, Jilin, 130041
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, 0
Fuzhou General Hospital of Nanjing Military Command
Fuzhou, Fujian, 350100
Guangdong General Hospital
Guangzhou, Guangdong, 510080
The First Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong, 510080
2nd Affiliated Hospital, Zhejiang Univ. School of Medicine
Hangzhou, Zhejiang, 310009
Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine
Hangzhou, Zhejiang, 310016
1st Affiliated Hospital of Zhejiang University
Hangzhou
Jilin central Hospital
Jilin City, Jilin, 132011
The First Affiated Hospital of Kunming Medical College
Kunming, Yun'nan, 650032
The First Affiliated Hospital of NanChang University
Nanchang
Jiangsu Province People's Hospital
Nanjing, Jiangsu, 210029
The Affiliated DrumTower Hospital of Nanjing University
Nanjing, 210008
Ruijin Hospital, Shanghai Jiaotong Uni. School of Med.
Shanghai, Shanghai Municipality, 200025
Zhongshan Hospital Fudan University
Shanghai, Shanghai Municipality, 200032
TongJi Hospital of Tongji University
Shanghai, Shanghai Municipality, 200065
Tianjin Medical University General Hospital
Tianjin, Tianjin Municipality, 300052
The 2nd Hospital of Tianjin Medical University
Tianjin, Tianjin Municipality, 300211
Study site
Tianjin
Union Hospital of Tongji Medical College of Huazhong Science and Techology University
Wuhan, Hubei, 430022
Tongji Hospital, Tongji Medical College, Huazhong University of Science & Techology
Wuhan, Hubei, 430030
General Hospital of Ningxia Medical University
Yinchuan, Ningxia Hui, 750004
South Korea12 sites
Pusan National University Hospital
Busan, 49241
Kyungpook National University Medical Center
Daegu, Gyeongsangbuk-do, 41404
Yeungnam University Hospital
Daegu, 42415
Wonkwang University School Of Medicine & Hospital
Iksan-si, Jeollabuk-do, 54538
Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, 13620
Seoul National University Hospital
Seoul, Gyeonggi-do, 03080
Kyung Hee University Hospital
Seoul, 02447
Korea University Anam Hospital
Seoul, 02841
Kangbuk Samsung Hospital
Seoul, 03181
Asan Medical Center
Seoul, 05505
Samsung Medical Center
Seoul, 06351
The Catholic University of Korea, Seoul St. Marys Hospital
Seoul, 06591
Taiwan12 sites
Kaohsiung Medical University Chung-Ho Memorial Hospital
Kaohsiung City, 807
E-Da Hospital
Kaohsiung City, 824
Kaohsiung Chang Gung Memorial Hospital
Kaohsiung City, 833
China Medical University Hospital
Taichung, 333
Chung Shan Medical University Hospital
Taichung, 402
Cheng Ching General Hospital-Chung Kang Branch
Taichung, 407
National Cheng Kung University Hospital
Tainan, 704
National Taiwan University Hospital
Taipei, 100
Taipei Medical University Hospital
Taipei, 110
Taipei Veterans General Hospital
Taipei, 112
Tri-Service General Hospital
Taipei, 114
Chang Gung Memorial Hospital, Linkou
Taoyuan County, 333
Malaysia8 sites
Hospital Sultana Bahiyah
Alor Star, Kedah, 5460
Hospital Ampang
Ampang, Selangor, 68000
Hospital Universiti Sains Malaysia
Kelantan, Kelantan, 16150
Hospital Raja Perempuan Zainab II
Kota Bharu, Kelantan, 15586
Hospital Queen Elizabeth
Kota Kinabalu, Sabah, 88586
Hospital Kuala Lumpur
Kuala Lumpur, 50586
University Malaya Medical Centre
Kuala Lumpur, 59100
Hospital Tengku Ampuan Afzan
Kuantan, Pahang, 25100
About this study
Official title: A Randomized, Double-Blind, Double-Dummy Phase 3 Study to Evaluate the Efficacy and Safety of Oral Once-Daily Administration of TAK-438 20 mg Compared to Lansoprazole 30 mg in the Treatment of Subjects With Erosive Esophagitis
The purpose of the study is to demonstrate the efficacy of vonoprazan (TAK-438) versus lansoprazole in the treatment of erosive esophagitis classified as Los Angeles (LA) classification grades A to D at Week 8.
Read the detailed description
The drug being tested in this study is called vonoprazan. Vonoprazan is being tested to treat people who have erosive esophagitis. This study will look at mucosal healing of people who take vonoprazan versus lansoprazole.
This study will enroll approximately 480 patients. Participants will be randomly assigned (by chance, like flipping a coin) to one of the two treatment groups-which will remain undisclosed to the patient and study doctor during the study (unless there is an urgent medical need):
- Vonoprazan 20 mg
- Lansoprazole 30 mg
All participants will be asked to take one tablet and one capsule at the same time each day throughout the study. All participants will be asked to record daytime and nighttime (during sleep) subjective symptoms in a diary on a daily basis.
This multi-center trial will be conducted worldwide. The overall time to participate in this study is up to 11 weeks. Participants will make multiple visits to the clinic, and will be contacted by telephone 7-14 days after last dose of study drug for a follow-up assessment.
- Conditions
- Erosive Esophagitis
- Being tested
- Vonoprazan, Lansoprazole, Vonoprazan Placebo, Lansoprazole Placebo
- Keywords
- Drug therapy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
VonoprazanDrug
Also called TAK-438
Vonoprazan tablets
LansoprazoleDrug
Also called Prevacid
Lansoprazole capsules
Vonoprazan PlaceboDrug
Vonoprazan placebo-matching tablets
Lansoprazole PlaceboDrug
Lansoprazole placebo-matching capsules
| Study group | Role | What they receive |
|---|---|---|
| Vonoprazan 20 mg | Experimental | Vonoprazan 20 mg, tablet, orally, once daily and lansoprazole placebo-matching capsule, orally, once daily for up to 8 weeks. Receives: Drug: Vonoprazan; Drug: Lansoprazole Placebo |
| Lansoprazole 30 mg | Active comparator | Lansoprazole 30 mg, capsule, orally, once daily and vonoprazan placebo-matching tablet, orally, once daily for up to 8 weeks. Receives: Drug: Lansoprazole; Drug: Vonoprazan Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants With Endoscopic Healing of Erosive Esophagitis During the 8-Week Treatment Phase
Endoscopic healing is defined as participants endoscopically diagnosed as Los Angeles classification grade O during the treatment phase. Grade O indicates there are no mucosal breaks in the mucosa.
Measured: 8 weeks
Secondary outcomes (8)
Percentage of Participants With Endoscopic Healing of Erosive Esophagitis After 2 Weeks and 4 Weeks of Treatment
Endoscopic healing is defined as participants endoscopically diagnosed as Los Angeles classification grade O during the treatment phase. Grade O indicates there are no mucosal breaks in the mucosa.
Measured: Week 2 and Week 4
Number of Participants Reporting Who Had One or More Treatment-emergent Adverse Event (TEAE)
An AE is defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (eg, a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug whether or not it is considered related to the drug.
Measured: On or after the start of study drug (Day 1) to 14 days after the last dose of study medication (up to 10 weeks)
Number of Participants With Markedly Abnormal Clinical Laboratory Findings
Clinical Laboratory Safety tests included Chemistry, Hematology and Urinalysis. Number of participants with any markedly abnormal values in laboratory tests collected throughout study is reported. ALT = alanine aminotransferase, AST = aspartate aminotransferase, GGT = gamma-glutamyl transferase, CPK = creatine phosphokinase, BUN = blood urea nitrogen, LLN = lower limit of normal or lower reference limit, ULN = upper limit of normal or upper reference limit, g/L = grams per liter, U/L = units per liter, mmol/L = millimoles per liter, pmol/L = picomoles per liter.
Measured: From Day 1 to 14 days after the last dose of study medication (up to 10 weeks)
Number of Participants With Markedly Abnormal Electrocardiogram (ECG) Findings
Number of participants with any markedly abnormal 12-lead ECG findings is reported. bpm = beats per minute, msec = milliseconds, CHG= change from baseline.
Measured: From Day 1 to 14 days after the last dose of study medication (up to 10 weeks)
Number of Participants With Markedly Abnormal Vital Sign Measurements
Number of participants with any markedly abnormal vital signs measurements is reported. Vital signs included body temperature (oral, tympanic, or infra-axillary measurement), sitting blood pressure (5 minutes), and pulse. °C = degrees Celsius, mmHg = millimeters of mercury, bpm = beats per minute.
Measured: From Day 1 to 14 days after the last dose of study medication (up to 10 weeks)
Change From Baseline in Serum Gastrin
The change between the serum gastrin values collected at Weeks 2, 4, and 8 relative to baseline.
Measured: Baseline and Weeks 2, 4, and 8
Change From Baseline in Serum Pepsinogen I
The change between the serum pepsinogen I values collected at Weeks 2, 4, and 8 relative to baseline.
Measured: Baseline and Weeks 2, 4, and 8
Change From Baseline in Serum Pepsinogen II
The change between the serum pepsinogen II values collected at Weeks 2, 4, and 8 relative to baseline.
Measured: Baseline and Weeks 2, 4, and 8
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Mar 2015 (estimated)
- Study start24 Mar 2015
- Primary completion27 Jul 2017
- Study completion27 Jul 2017
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 Erosive EsophagitisStudies 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
- 481 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
- NCT02388724
- Sponsor's protocol ID
- TAK-438_303
- Other IDs
- U1111-1138-4788, CTR20150040
- Status last verified
- Feb 2019
- First submitted
- 9 Mar 2015
- Last updated
- 3 Jun 2019
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Xiao Y, Zhang S, Dai N, Fei G, Goh KL, Chun HJ, Sheu BS, Chong CF, Funao N, Zhou W, Chen M. Phase III, randomised, double-blind, multicentre study to evaluate the efficacy and safety of vonoprazan compared with lansoprazole in Asian patients with erosive oesophagitis. Gut. 2020 Feb;69(2):224-230. doi: 10.1136/gutjnl-2019-318365. Epub 2019 Aug 13.
PubMed 31409606
Study at a glance
From the registry record, last updated by the sponsor on 3 Jun 2019. 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 Once-Daily Administration of TAK-438 20 mg Compared to Lansoprazole 30 mg in the Treatment of Subjects With Erosive Esophagitis
- ClinicalTrials.gov ID
- NCT02388724
- Acronym / sponsor ID
- TAK-438_303
- Conditions
- Erosive Esophagitis
- Keywords
- Drug therapy
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 481 participants (actual)
- Lead sponsor
- TakedaIndustry (pharma, biotech, devices)
- Study start
- 24 Mar 2015 (actual)
- Primary completion
- 27 Jul 2017 (actual)
- Study completion
- 27 Jul 2017 (actual)
- First posted
- 17 Mar 2015 (estimated)
- Results
- Posted 3 Jun 2019
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 the study is to demonstrate the efficacy of vonoprazan (TAK-438) versus lansoprazole in the treatment of erosive esophagitis classified as Los Angeles (LA) classification grades A to D at Week 8.
Detailed description
The drug being tested in this study is called vonoprazan. Vonoprazan is being tested to treat people who have erosive esophagitis. This study will look at mucosal healing of people who take vonoprazan versus lansoprazole.
This study will enroll approximately 480 patients. Participants will be randomly assigned (by chance, like flipping a coin) to one of the two treatment groups-which will remain undisclosed to the patient and study doctor during the study (unless there is an urgent medical need):
- Vonoprazan 20 mg
- Lansoprazole 30 mg
All participants will be asked to take one tablet and one capsule at the same time each day throughout the study. All participants will be asked to record daytime and nighttime (during sleep) subjective symptoms in a diary on a daily basis.
This multi-center trial will be conducted worldwide. The overall time to participate in this study is up to 11 weeks. Participants will make multiple visits to the clinic, and will be contacted by telephone 7-14 days 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 |
|---|---|---|
| Vonoprazan 20 mg | Experimental | Drug: Vonoprazan, Drug: Lansoprazole PlaceboVonoprazan 20 mg, tablet, orally, once daily and lansoprazole placebo-matching capsule, orally, once daily for up to 8 weeks. |
| Lansoprazole 30 mg | Active comparator | Drug: Lansoprazole, Drug: Vonoprazan PlaceboLansoprazole 30 mg, capsule, orally, once daily and vonoprazan placebo-matching tablet, orally, once daily for up to 8 weeks. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- In the opinion of the investigator, the participant is capable of understanding and complying with protocol requirements.
- The participant or, when applicable, the participant's legally acceptable representative signs and dates a written, informed consent form and any required privacy authorization prior to the initiation of any study procedures.
- Has been confirmed in an endoscopy to have erosive esophagitis, ie, the Los Angeles (LA) classification grades A to D within 7 days of the start of the Day 1 (Visit 2).
- Note: The recruitment goal is to ensure that those with LA classification grade C/D will account for more than 30% of all participants enrolled (144/480), with no further recruitment of those with grade A/B considered when they account for more than 70% (336/480) of all participants.
- Is aged 18 years old or older (or the local age of consent if that is older), male or female, at the time of signing an informed consent, and is being treated on an outpatient basis for erosive esophagitis, including those admitted temporarily for examination.
Key exclusion criteria (22 listed)
- Has received any investigational compound within 84 days prior to the start of the Observation phase.
- Has received TAK-438 in a previous clinical study or as a therapeutic agent.
- Is an immediate family member, study site employee, or is in a dependant relationship with a study site employee who is involved in conduct of this study (eg, spouse, parent, child, sibling) or may consent under duress.
- Has, in the judgment of the investigator, clinically significant abnormal hematological parameters of hemoglobin, hematocrit, or erythrocytes at Screening.
- Has a history or clinical manifestations of serious central nerve system (CNS), cardiovascular, pulmonary, hepatic, renal, metabolic, gastrointestinal, urological, endocrine or hematological disease.
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 |
|---|---|---|
| VonoprazanAlso: TAK-438Vonoprazan tablets | Drug | Vonoprazan 20 mg |
| LansoprazoleAlso: PrevacidLansoprazole capsules | Drug | Lansoprazole 30 mg |
| Vonoprazan PlaceboVonoprazan placebo-matching tablets | Drug | Lansoprazole 30 mg |
| Lansoprazole PlaceboLansoprazole placebo-matching capsules | Drug | Vonoprazan 20 mg |
Primary outcome
Percentage of Participants With Endoscopic Healing of Erosive Esophagitis During the 8-Week Treatment Phase
Time frame: 8 weeks
Endoscopic healing is defined as participants endoscopically diagnosed as Los Angeles classification grade O during the treatment phase. Grade O indicates there are no mucosal breaks in the mucosa.
8 secondary outcomes
Percentage of Participants With Endoscopic Healing of Erosive Esophagitis After 2 Weeks and 4 Weeks of Treatment
Time frame: Week 2 and Week 4
Number of Participants Reporting Who Had One or More Treatment-emergent Adverse Event (TEAE)
Time frame: On or after the start of study drug (Day 1) to 14 days after the last dose of study medication (up to 10 weeks)
Number of Participants With Markedly Abnormal Clinical Laboratory Findings
Time frame: From Day 1 to 14 days after the last dose of study medication (up to 10 weeks)
Number of Participants With Markedly Abnormal Electrocardiogram (ECG) Findings
Time frame: From Day 1 to 14 days after the last dose of study medication (up to 10 weeks)
Number of Participants With Markedly Abnormal Vital Sign Measurements
Time frame: From Day 1 to 14 days after the last dose of study medication (up to 10 weeks)
Change From Baseline in Serum Gastrin
Time frame: Baseline and Weeks 2, 4, and 8
Change From Baseline in Serum Pepsinogen I
Time frame: Baseline and Weeks 2, 4, and 8
Change From Baseline in Serum Pepsinogen II
Time frame: Baseline and Weeks 2, 4, and 8
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jun 2019.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 31409606Xiao Y, Zhang S, Dai N, Fei G, Goh KL, Chun HJ, Sheu BS, Chong CF, Funao N, Zhou W, Chen M. Phase III, randomised, double-blind, multicentre study to evaluate the efficacy and safety of vonoprazan compared with lansoprazole in Asian patients with erosive oesophagitis. Gut. 2020 Feb;69(2):224-230. doi: 10.1136/gutjnl-2019-318365. Epub 2019 Aug 13.
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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
64 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 Vonoprazan and Lansoprazole in people with Erosive Esophagitis, run by Takeda at 64 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 6 inclusion and 22 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 3 Jun 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 64 sites in China, South Korea, Taiwan, Malaysia. 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 3 Jun 2019). 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 Endoscopic Healing of Erosive Esophagitis During the 8-Week Treatment Phase (time frame: 8 weeks). 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 NCT02388724, 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 3 Jun 2019.