Barrett's EsophagusNCT00574327
Progression of Gastroesophageal Reflux Disease and Barrett's Esophagus and the Creation of a Barrett's Registry
An observational study of Barrett's Esophagus and Gastroesophageal Reflux Disease, run by Midwest Biomedical Research at 1 site in United States.
Trial summary
The purpose of this study is to determine or evaluate the risk factors such as smoking, family history etc. that cause esophageal cancer and to determine the genetic changes that lead to esophageal cancer. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Barrett's Esophagus, Gastroesophageal Reflux Disease, Esophageal Adenocarcinoma
- How many people
- 3,000 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2006to Jan 2029
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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
- Healthy volunteers accepted
- Adult, Older adult
Study population: All patients must be eligible for care at the Kansas City VA Medical Center. Those presenting to the Kansas City VA endoscopy laboratory for their "standard BE surveillance" endoscopy. Patients with a history of BE will be identified and contacted from the existing databank. Patients with newly diagnosed BE in the endoscopy laboratory after their procedure is completed and biopsy results are available. Patients undergoing upper endoscopy for evaluation of GERD symptoms. Control group of patients undergoing upper endoscopy for any reason other than the ones stated above.
Who may be able to join
- Kansas City VA Patients with confirmed BE with and without dysplasia and patients with reflux disease (patients/cases); patients with other indicators for endoscopy such as anemia, weight loss, diarrhea, but without GERD and PE (controls).
Who cannot join
- Patients with uncontrolled significant comorbidities such as cardiovascular, pulmonary, renal, hepatic or metabolic diseases.
- Presence of anticoagulation that would increase risk from biopsies
- Patients unable to provide history
- Patients with dyspepsia
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Department of Veterans Affairs Medical Center
Kansas City, Missouri, 64128
Prateek Sharma, MD
Sharad Mathur, MD
About this study
Official title: A Prospective Study To Define The Role Of Various Factors In Development And Progression Of Gastroesophageal Reflux Disease (GERD) And Barrett's Esophagus And The Creation Of A Registry.
The purpose of this study is to determine or evaluate the risk factors such as smoking, family history etc. that cause esophageal cancer and to determine the genetic changes that lead to esophageal cancer. The investigators hypothesis is that systematic collection of data on the natural history of GERD and BE patients and risk factors for development of BE in patients with chronic GERD and progression of BE to dysplasia and adenocarcinoma will provide useful information to develop a decision model for risk stratification and risk reduction strategies in these patients.
As of March 17, 2011, 585 patients have consented at the Kansas City VA Medical Center.
Read the detailed description
Symptoms of gastroesophageal reflux are common. It affects at least 40% of the adult American population and 40 million American adults experience reflux symptoms on a regular basis. Gastroesophageal reflux disease (GERD) typically affects Caucasians and older males. It is a significant risk factor for development of Barrett's esophagus (BE) and esophageal adenocarcinoma. Approximately 10-15% of patients with chronic GERD are diagnosed with BE, a premalignant lesion for esophageal adenocarcinoma. Adenocarcinoma of the esophagus continues to be the most rapidly increasing incidence cancer in the United States. Based on studies evaluating screening/surveillance strategies, it is clear that it is imperative to identify risk factors that would target those patients with gastroesophageal reflux disease (GERD) and BE that may benefit from screening and surveillance strategies, yet also be practical and cost-effective. A better understanding of the events surrounding the development of BE in patients with chronic GERD, development of dysplastic changes in patients with BE and progression of BE to adenocarcinoma may ultimately help in identifying those patients at increased risk. Thus, our hypothesis is that systematic collection of data on the natural history of GERD and BE patients and risk factors for development of BE in patients with chronic GERD and progression of BE to dysplasia and adenocarcinoma will provide useful information to develop a decision model for risk stratification and risk reduction strategies in these patients. This model will be a useful tool leading to a reduction in overall health care costs.
The study will be conducted at the Kansas City Department of Veterans Affairs Medical Center. This is a prospective cohort study designed to analyze the epidemiologic and genetic factors relevant to development of BE in patients with GERD and its subsequent progression to dysplasia and adenocarcinoma. 1) The consenting patients as well as controls (2:1 ratio) will be asked to fill validated questionnaire on severity of GERD and food frequency. Data regarding medications, family history and social history will also be collected. 2) The endoscopy and pathology reports will be browsed for length of Barrett's esophagus confirmed by histology, length of hiatal hernia and presence of helicobacter pylori. 3) Serum samples from participating patients will be collected and frozen for measurements of insulin, glucose, lipid panel, CRP and adiponectin levels. Biopsies obtained from esophagus during endoscopy and blood samples would be frozen for future biomarker and cDNA microarray studies and histochemistry.
Approximately10-20% of the adult population has GERD and 0.5 to 2% of the adult population (1-4 million individuals) is estimated to have BE and it is a known precursor to esophageal adenocarcinoma. However, we are not yet able to reliably identify those individuals with GERD that are at risk for developing BE and with BE who are at high risk for progressing to esophageal adenocarcinoma. The identification of risk factors as the ultimate goal of this study will enable us to better identify the high-risk patients and provide early intervention and therapeutic strategies in a cost-effective manner.
- Keywords
- Role, Registry, Barrett's Esophagus
- Medical subject headings
- Barrett Esophagus, Gastroesophageal Reflux, Adenocarcinoma Of Esophagus
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| A- Barrett's Esophagus subjects | Patients with documented Barrett's Esophagus with or without dysplasia (LGD or HGD) that will undergo surveillance endoscopies dictated by the grade of dysplasia. | |
| B- gastroesophageal reflux subjects | Patients undergoing endoscopy for evaluation of GERD symptoms. | |
| C-subjects without BE or GERD | The control group would include patients undergoing upper endoscopy for reasons other than stated above, such as evaluation of iron deficiency anemia, weight loss, positive fecal occult blood, etc. |
What is being measured
The primary outcome is the main question the study is designed to answer.
The goal of this study is to follow GERD and BE pts prospectively for development of dysplasia and adenocarcinoma, to identify factors responsible for progression of GERD to BE to dysplasia and adenocarcinoma.
Measured: 5 plus years
Secondary outcomes (1)
The secondary goal is to create a tissue and serum repository for future biomarker studies.
Measured: 5 plus years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Dec 2007 (estimated)
- Study startJan 2006
- Primary completionOct 2028 (estimated)
- Study completionJan 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (33)Papers the sponsor has linked to this study.
- Other trials for Barrett's EsophagusStudies of the same condition, open and under way.
- 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
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 3,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Midwest Biomedical Research
- Sponsor type
- University, hospital or other
- Collaborators
- Kansas City Veteran Affairs Medical Center
- Responsible party
- Principal investigator, PRATEEK SHARMA, Midwest Biomedical Research
- Investigators
- Prateek Sharma, MD, Principal investigator, Department of Veterans Affairs Medical Center of Kansas City
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00574327
- Sponsor's protocol ID
- PS0035
- Status last verified
- Mar 2023
- First submitted
- 14 Dec 2007
- Last updated
- 16 Mar 2023
- Results posted
- No
- Data monitoring committee
- No
Publications
Sampliner RE; Practice Parameters Committee of the American College of Gastroenterology. Updated guidelines for the diagnosis, surveillance, and therapy of Barrett's esophagus. Am J Gastroenterol. 2002 Aug;97(8):1888-95. doi: 10.1111/j.1572-0241.2002.05910.x. No abstract available.
PubMed 12190150Haggitt RC. Barrett's esophagus, dysplasia, and adenocarcinoma. Hum Pathol. 1994 Oct;25(10):982-93. doi: 10.1016/0046-8177(94)90057-4.
PubMed 7927321Reid BJ. Barrett's esophagus and esophageal adenocarcinoma. Gastroenterol Clin North Am. 1991 Dec;20(4):817-34.
PubMed 1787015van Sandick JW, van Lanschot JJ, Kuiken BW, Tytgat GN, Offerhaus GJ, Obertop H. Impact of endoscopic biopsy surveillance of Barrett's oesophagus on pathological stage and clinical outcome of Barrett's carcinoma. Gut. 1998 Aug;43(2):216-22. doi: 10.1136/gut.43.2.216.
PubMed 10189847Gudlaugsdottir S, van Blankenstein M, Dees J, Wilson JH. A majority of patients with Barrett's oesophagus are unlikely to benefit from endoscopic cancer surveillance. Eur J Gastroenterol Hepatol. 2001 Jun;13(6):639-45. doi: 10.1097/00042737-200106000-00005.
PubMed 11434588van der Burgh A, Dees J, Hop WC, van Blankenstein M. Oesophageal cancer is an uncommon cause of death in patients with Barrett's oesophagus. Gut. 1996 Jul;39(1):5-8. doi: 10.1136/gut.39.1.5.
PubMed 8881798O'Connor JB, Falk GW, Richter JE. The incidence of adenocarcinoma and dysplasia in Barrett's esophagus: report on the Cleveland Clinic Barrett's Esophagus Registry. Am J Gastroenterol. 1999 Aug;94(8):2037-42. doi: 10.1111/j.1572-0241.1999.01275.x.
PubMed 10445525Wong A, Fitzgerald RC. Epidemiologic risk factors for Barrett's esophagus and associated adenocarcinoma. Clin Gastroenterol Hepatol. 2005 Jan;3(1):1-10. doi: 10.1016/s1542-3565(04)00602-0.
PubMed 15645398Shirvani VN, Ouatu-Lascar R, Kaur BS, Omary MB, Triadafilopoulos G. Cyclooxygenase 2 expression in Barrett's esophagus and adenocarcinoma: Ex vivo induction by bile salts and acid exposure. Gastroenterology. 2000 Mar;118(3):487-96. doi: 10.1016/s0016-5085(00)70254-x.
PubMed 10702199Wilson KT, Fu S, Ramanujam KS, Meltzer SJ. Increased expression of inducible nitric oxide synthase and cyclooxygenase-2 in Barrett's esophagus and associated adenocarcinomas. Cancer Res. 1998 Jul 15;58(14):2929-34.
PubMed 9679948Rabinovitch PS, Longton G, Blount PL, Levine DS, Reid BJ. Predictors of progression in Barrett's esophagus III: baseline flow cytometric variables. Am J Gastroenterol. 2001 Nov;96(11):3071-83. doi: 10.1111/j.1572-0241.2001.05261.x.
PubMed 11721752Reid BJ, Levine DS, Longton G, Blount PL, Rabinovitch PS. Predictors of progression to cancer in Barrett's esophagus: baseline histology and flow cytometry identify low- and high-risk patient subsets. Am J Gastroenterol. 2000 Jul;95(7):1669-76. doi: 10.1111/j.1572-0241.2000.02196.x.
PubMed 10925966Cameron AJ, Lomboy CT. Barrett's esophagus: age, prevalence, and extent of columnar epithelium. Gastroenterology. 1992 Oct;103(4):1241-5. doi: 10.1016/0016-5085(92)91510-b.
PubMed 1397881El-Serag HB, Petersen NJ, Carter J, Graham DY, Richardson P, Genta RM, Rabeneck L. Gastroesophageal reflux among different racial groups in the United States. Gastroenterology. 2004 Jun;126(7):1692-9. doi: 10.1053/j.gastro.2004.03.077.
PubMed 15188164Younes M, Henson DE, Ertan A, Miller CC. Incidence and survival trends of esophageal carcinoma in the United States: racial and gender differences by histological type. Scand J Gastroenterol. 2002 Dec;37(12):1359-65. doi: 10.1080/003655202762671215.
PubMed 12523583
Study at a glance
From the registry record, last updated by the sponsor on 16 Mar 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective Study To Define The Role Of Various Factors In Development And Progression Of Gastroesophageal Reflux Disease (GERD) And Barrett's Esophagus And The Creation Of A Registry.
- ClinicalTrials.gov ID
- NCT00574327
- Acronym / sponsor ID
- PS0035
- Keywords
- Role, Registry, Barrett's Esophagus
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 3,000 participants (estimated)
- Lead sponsor
- Midwest Biomedical ResearchUniversity, hospital or other
- Collaborators
- Kansas City Veteran Affairs Medical Center
- Study start
- Jan 2006
- Primary completion
- Oct 2028 (estimated)
- Study completion
- Jan 2029 (estimated)
- First posted
- 17 Dec 2007 (estimated)
- Results
- Not posted in the source record
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 determine or evaluate the risk factors such as smoking, family history etc. that cause esophageal cancer and to determine the genetic changes that lead to esophageal cancer. The investigators hypothesis is that systematic collection of data on the natural history of GERD and BE patients and risk factors for development of BE in patients with chronic GERD and progression of BE to dysplasia and adenocarcinoma will provide useful information to develop a decision model for risk stratification and risk reduction strategies in these patients.
As of March 17, 2011, 585 patients have consented at the Kansas City VA Medical Center.
Detailed description
Symptoms of gastroesophageal reflux are common. It affects at least 40% of the adult American population and 40 million American adults experience reflux symptoms on a regular basis. Gastroesophageal reflux disease (GERD) typically affects Caucasians and older males. It is a significant risk factor for development of Barrett's esophagus (BE) and esophageal adenocarcinoma. Approximately 10-15% of patients with chronic GERD are diagnosed with BE, a premalignant lesion for esophageal adenocarcinoma. Adenocarcinoma of the esophagus continues to be the most rapidly increasing incidence cancer in the United States. Based on studies evaluating screening/surveillance strategies, it is clear that it is imperative to identify risk factors that would target those patients with gastroesophageal reflux disease (GERD) and BE that may benefit from screening and surveillance strategies, yet also be practical and cost-effective. A better understanding of the events surrounding the development of BE in patients with chronic GERD, development of dysplastic changes in patients with BE and progression of BE to adenocarcinoma may ultimately help in identifying those patients at increased risk. Thus, our hypothesis is that systematic collection of data on the natural history of GERD and BE patients and risk factors for development of BE in patients with chronic GERD and progression of BE to dysplasia and adenocarcinoma will provide useful information to develop a decision model for risk stratification and risk reduction strategies in these patients. This model will be a useful tool leading to a reduction in overall health care costs.
The study will be conducted at the Kansas City Department of Veterans Affairs Medical Center. This is a prospective cohort study designed to analyze the epidemiologic and genetic factors relevant to development of BE in patients with GERD and its subsequent progression to dysplasia and adenocarcinoma. 1) The consenting patients as well as controls (2:1 ratio) will be asked to fill validated questionnaire on severity of GERD and food frequency. Data regarding medications, family history and social history will also be collected. 2) The endoscopy and pathology reports will be browsed for length of Barrett's esophagus confirmed by histology, length of hiatal hernia and presence of helicobacter pylori. 3) Serum samples from participating patients will be collected and frozen for measurements of insulin, glucose, lipid panel, CRP and adiponectin levels. Biopsies obtained from esophagus during endoscopy and blood samples would be frozen for future biomarker and cDNA microarray studies and histochemistry.
Approximately10-20% of the adult population has GERD and 0.5 to 2% of the adult population (1-4 million individuals) is estimated to have BE and it is a known precursor to esophageal adenocarcinoma. However, we are not yet able to reliably identify those individuals with GERD that are at risk for developing BE and with BE who are at high risk for progressing to esophageal adenocarcinoma. The identification of risk factors as the ultimate goal of this study will enable us to better identify the high-risk patients and provide early intervention and therapeutic strategies in a cost-effective manner.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| A- Barrett's Esophagus subjects | – | –Patients with documented Barrett's Esophagus with or without dysplasia (LGD or HGD) that will undergo surveillance endoscopies dictated by the grade of dysplasia. |
| B- gastroesophageal reflux subjects | – | –Patients undergoing endoscopy for evaluation of GERD symptoms. |
| C-subjects without BE or GERD | – | –The control group would include patients undergoing upper endoscopy for reasons other than stated above, such as evaluation of iron deficiency anemia, weight loss, positive fecal occult blood, etc. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- All patients must be eligible for care at the Kansas City VA Medical Center. Those presenting to the Kansas City VA endoscopy laboratory for their "standard BE surveillance" endoscopy. Patients with a history of BE will be identified and contacted from the existing databank. Patients with newly diagnosed BE in the endoscopy laboratory after their procedure is completed and biopsy results are available. Patients undergoing upper endoscopy for evaluation of GERD symptoms. Control group of patients undergoing upper endoscopy for any reason other than the ones stated above.
Key inclusion criteria (1 listed)
- Kansas City VA Patients with confirmed BE with and without dysplasia and patients with reflux disease (patients/cases); patients with other indicators for endoscopy such as anemia, weight loss, diarrhea, but without GERD and PE (controls).
Key exclusion criteria (4 listed)
- Patients with uncontrolled significant comorbidities such as cardiovascular, pulmonary, renal, hepatic or metabolic diseases.
- Presence of anticoagulation that would increase risk from biopsies
- Patients unable to provide history
- Patients with dyspepsia
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
The goal of this study is to follow GERD and BE pts prospectively for development of dysplasia and adenocarcinoma, to identify factors responsible for progression of GERD to BE to dysplasia and adenocarcinoma.
Time frame: 5 plus years
1 secondary outcome
The secondary goal is to create a tissue and serum repository for future biomarker studies.
Time frame: 5 plus years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Mar 2023.
- Background: PubMed 12190150Sampliner RE; Practice Parameters Committee of the American College of Gastroenterology. Updated guidelines for the diagnosis, surveillance, and therapy of Barrett's esophagus. Am J Gastroenterol. 2002 Aug;97(8):1888-95. doi: 10.1111/j.1572-0241.2002.05910.x. No abstract available.
- Background: PubMed 7927321Haggitt RC. Barrett's esophagus, dysplasia, and adenocarcinoma. Hum Pathol. 1994 Oct;25(10):982-93. doi: 10.1016/0046-8177(94)90057-4.
- Background: PubMed 1787015Reid BJ. Barrett's esophagus and esophageal adenocarcinoma. Gastroenterol Clin North Am. 1991 Dec;20(4):817-34.
- Background: PubMed 10189847van Sandick JW, van Lanschot JJ, Kuiken BW, Tytgat GN, Offerhaus GJ, Obertop H. Impact of endoscopic biopsy surveillance of Barrett's oesophagus on pathological stage and clinical outcome of Barrett's carcinoma. Gut. 1998 Aug;43(2):216-22. doi: 10.1136/gut.43.2.216.
- Background: PubMed 11434588Gudlaugsdottir S, van Blankenstein M, Dees J, Wilson JH. A majority of patients with Barrett's oesophagus are unlikely to benefit from endoscopic cancer surveillance. Eur J Gastroenterol Hepatol. 2001 Jun;13(6):639-45. doi: 10.1097/00042737-200106000-00005.
- Background: PubMed 8881798van der Burgh A, Dees J, Hop WC, van Blankenstein M. Oesophageal cancer is an uncommon cause of death in patients with Barrett's oesophagus. Gut. 1996 Jul;39(1):5-8. doi: 10.1136/gut.39.1.5.
- Background: PubMed 10445525O'Connor JB, Falk GW, Richter JE. The incidence of adenocarcinoma and dysplasia in Barrett's esophagus: report on the Cleveland Clinic Barrett's Esophagus Registry. Am J Gastroenterol. 1999 Aug;94(8):2037-42. doi: 10.1111/j.1572-0241.1999.01275.x.
- Background: PubMed 15645398Wong A, Fitzgerald RC. Epidemiologic risk factors for Barrett's esophagus and associated adenocarcinoma. Clin Gastroenterol Hepatol. 2005 Jan;3(1):1-10. doi: 10.1016/s1542-3565(04)00602-0.
- Background: PubMed 10702199Shirvani VN, Ouatu-Lascar R, Kaur BS, Omary MB, Triadafilopoulos G. Cyclooxygenase 2 expression in Barrett's esophagus and adenocarcinoma: Ex vivo induction by bile salts and acid exposure. Gastroenterology. 2000 Mar;118(3):487-96. doi: 10.1016/s0016-5085(00)70254-x.
- Background: PubMed 9679948Wilson KT, Fu S, Ramanujam KS, Meltzer SJ. Increased expression of inducible nitric oxide synthase and cyclooxygenase-2 in Barrett's esophagus and associated adenocarcinomas. Cancer Res. 1998 Jul 15;58(14):2929-34.
- Background: PubMed 11721752Rabinovitch PS, Longton G, Blount PL, Levine DS, Reid BJ. Predictors of progression in Barrett's esophagus III: baseline flow cytometric variables. Am J Gastroenterol. 2001 Nov;96(11):3071-83. doi: 10.1111/j.1572-0241.2001.05261.x.
- Background: PubMed 10925966Reid BJ, Levine DS, Longton G, Blount PL, Rabinovitch PS. Predictors of progression to cancer in Barrett's esophagus: baseline histology and flow cytometry identify low- and high-risk patient subsets. Am J Gastroenterol. 2000 Jul;95(7):1669-76. doi: 10.1111/j.1572-0241.2000.02196.x.
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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.
Prateek Sharma, MD principal investigator
Department of Veterans Affairs Medical Center of Kansas City
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Barrett's Esophagus and Gastroesophageal Reflux Disease, run by Midwest Biomedical Research at 1 site in United States.
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 4 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: looking for participants now, as of the sponsor's last update on 16 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. 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.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact April D Higbee, RN, BSN (816-861-4700 ext. 57456, april.higbee@va.gov), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The goal of this study is to follow GERD and BE pts prospectively for development of dysplasia and adenocarcinoma, to identify factors responsible for progression of GERD to BE to dysplasia and adenocarcinoma. (time frame: 5 plus years). 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 NCT00574327, which also lists 33 linked publications.
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 16 Mar 2023.