AsthmaPhase 4SARCANCT00442013
Lansoprazole to Treat Children With Asthma
A Phase 4 study testing Lansoprazole in people with Asthma, run by Johns Hopkins University at 20 sites in United States.
Trial summary
Many individuals with asthma also experience gastroesophageal reflux disease (GERD), a condition in which excess stomach acid flows backwards into the esophagus. This study will evaluate the effectiveness of lansoprazole, a medication commonly used to treat GERD in improving asthma control and reducing symptoms in… Read more about this study
- Who is it for?
- Ages 6 to 17 years
- Conditions the study is for
- Asthma
- What is being tested?
- Lansoprazole
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 306 participants
- Where
- 20 sitesUnited States
- Study dates
- Mar 2007to Aug 2011
- Phase
- Phase 4
- 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 6 to 17 years
- All sexes
- No healthy volunteers
- Child
Who may be able to join
- Physician-diagnosed asthma
- At least one of the following lung function criteria must be documented in the year prior to study entry:
- Bronchial hyperresponsiveness confirmed by 12% or greater improvement in amount of air expired in first second during a forced expiratory maneuver (FEV1) post-bronchodilator, or
- Methacholine post-diluent baseline (PC20) less than 16 mg/ml, or
- Exercise bronchoprovocation test with at least a 20% decrease in FEV1
- Currently on stable dose of daily inhaled corticosteroid for asthma control (i.e., inhaled corticosteroid equivalent to 2 puffs of 44 ug twice per day [176 ug] of fluticasone or greater for 8 weeks or longer prior to study entry)
Show all 12Show fewer
- Poor asthma control as defined by any one of the following criteria:
- Use of beta-agonist for asthma symptoms twice a week or more on average in the month prior to study entry
- Nocturnal awakening with asthma symptoms more than once per week on average in the month prior to study entry
- Two or more emergency department visits, unscheduled physician visits, prednisone courses, or hospitalizations for asthma in the 12 months prior to study entry
- Juniper Asthma Control Score (ACS) of 1.25 or greater at the first screening visit
- Absence of GERD symptoms at the time of study entry
Who cannot join
- Previous anti-reflux or peptic ulcer surgery
- Previous tracheoesophageal fistula repair
- FEV1 less than 60% of predicted normal value at screening visit and as measured immediately before methacholine bronchoprovocation; methacholine bronchoprovocation will be limited to participants with a FEV1 greater than or equal to 70% of predicted value in accordance with American Thoracic Society (ATS) guidelines
- History of a premature birth of less than 33 weeks gestation or any neonate requiring a significant level of respiratory care, including mechanical ventilation
- Any major chronic illness, including but not limited to non-skin cancer, cystic fibrosis, bronchiectasis, myelomeningocele, sickle cell anemia, endocrine disease, congenital heart disease, congestive heart failure, stroke, severe hypertension, insulin-dependent diabetes mellitus, kidney failure, liver disorder, immunodeficiency state, significant neuro-developmental delay or behavioral disorder (excluding mild attention deficit hyperactivity disorder), or other condition that would interfere with participation in the study
- History of phenylketonuria
Show all 18Show fewer
- Medications for treatment of GI symptoms (e.g., proton pump inhibitors, H2 blockers, bethanechol, metoclopramide) in the month prior to study entry (intermittent anti-acids are allowed)
- Use of theophylline preparations, azoles, anti-coagulants, insulin for Type I diabetes, digitalis, or oral iron supplements when administered for iron deficiency in the month prior to study entry
- Use of any investigative drug in the 2 months prior to study entry
- Previous adverse effects from lansoprazole, other proton pump inhibitors, or sensitivity to aspartame
- Inability or unwillingness of the legal guardian to provide consent
- Inability or unwillingness of the child to provide assent
- Inability to take study medication
- Inability to perform baseline measurements
- Less than 80% completion of screening period diaries
- Inability to contact by telephone
- Planning to move out of the area in the 6 months following study entry
- Pregnancy
Trial locations and contacts
20 sites in 1 country.
20 sites in 1 country
United States20 sites
Emory University School of Medicine
Atlanta, Georgia, 30322
University of Alabama at Birmingham
Birmingham, Alabama, 35233
Vermont Lung Center at The University of Vermont
Burlington, Vermont, 05405
Northwestern Memorial Hospital
Chicago, Illinois, 60611
Davis Heart and Lung Research Institute
Columbus, Ohio, 43210
National Jewish Medical and Research Center
Denver, Colorado, 80206
Duke University School of Medicine
Durham, North Carolina, 27710
Baylor College of Medicine
Houston, Texas, 77030
Indiana University
Indianapolis, Indiana, 46202
Nemours Children's Clinic
Jacksonville, Florida, 32207
University of Missouri, Kansas City School of Medicine
Kansas City, Missouri, 64108
University of Miami School of Medicine
Miami, Florida, 33613
University of Minnesota
Minneapolis, Minnesota, 55455
North Shore-Long Island Jewish Health System
New Hyde Park, New York, 11040
New York University School of Medicine
New York, New York, 10016
Penn Presbyterain Medical Center/Penn Lung Center
Philadelphia, Pennsylvania, 19104
University of California San Diego
San Diego, California, 92103
Washington University School of Medicine
St Louis, Missouri, 63110
University of South Florida College of Medicine
Tampa, Florida, 33613
New York Medical College
Valhalla, New York, 10595
About this study
Official title: Phase III: The Study of Acid Reflux in Children With Asthma
Many individuals with asthma also experience gastroesophageal reflux disease (GERD), a condition in which excess stomach acid flows backwards into the esophagus. This study will evaluate the effectiveness of lansoprazole, a medication commonly used to treat GERD in improving asthma control and reducing symptoms in children with poorly controlled asthma.
Read the detailed description
Approximately 75% of individuals with asthma also experience GERD. If left untreated, GERD can lead to lung damage, esophageal ulcers, or esophageal cancer. Children and adults whose asthma is poorly controlled with inhaled corticosteroids are often prescribed drugs that suppress gastric acid production; however, this treatment is expensive and has not been proven beneficial. Lansoprazole is a proton pump inhibitor medication that reduces stomach acid production. It may also decrease the frequency of asthma exacerbations in children with poorly controlled asthma. The purpose of this study is to evaluate the effectiveness of lansoprazole at improving asthma control, quality of life, and lung function in children with asthma.
This study will enroll children with poor asthma control who are receiving inhaled corticosteroids. Participants will be randomly assigned to receive either lansoprazole or placebo on a daily basis for 6 months. Study visits will occur at baseline and Weeks 4, 8, 12, 16, 20, and 24, and participants will be contacted by telephone at Week 2. A physical examination, blood collection, and methacholine challenge test will occur at selected visits. The methacholine challenge test will be used to help determine the severity of an individual's asthma. Lung function and airway pressure testing, questionnaires on asthma control and quality of life, medical history review, pill counts, and distribution of medication will occur at most study visits. Participants will record asthma symptoms and lung function in a daily diary throughout the study. A select group of participants will also wear an esophageal potential Hydrogen (pH) monitor for 24 hours to evaluate GERD symptoms and the relationship between GERD and asthma symptoms.
- Conditions
- Asthma
- Being tested
- Lansoprazole, Matching placebo
- Medical subject headings
- Asthma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LansoprazoleDrug
Also called Prevacid
Participants less than 30 kg will receive 15 mg a day, by mouth; participants greater than or equal to 30 kg will receive 30 mg a day, by mouth.
Matching placeboDrug
Also called Matching placebo manufactured by TAP Pharmaceuticals
Participants will receive a placebo pill on a daily basis. To maintain masking, there are two doses of the matching placebo provided to participants depending on participant body weight at randomization: 1.) less than 30kg will receive 15mg po once daily or 2.)greater or equal to 30kg 30mg po once daily.
| Study group | Role | What they receive |
|---|---|---|
| Lansoprazole | Experimental | Participants in this group will receive lansoprazole on a daily basis for 6 months. There are two doses of Lansoprazole solutab provided to participants depending on participant body weight at randomization: 1.) less than 30kg will receive 15mg po once daily or 2.)greater or equal to 30kg 30mg po once daily. Receives: Drug: Lansoprazole |
| Matching placebo | Placebo comparator | Participants in this group will receive a matching placebo on a daily basis for 6 months. To maintain masking, there are two doses of the matching placebo provided to participants depending on participant body weight at randomization: 1.) less than 30kg will receive 15mg po once daily or 2.)greater or equal to 30kg 30mg po once daily. Receives: Drug: Matching placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Juniper Asthma Control Score (ACS)
Score ranges from 0 to 6, a lower score indicated better asthma control. Scores above 1.5 are indicative of poor asthma control; score obtained from questionnaire with 6 questions related to asthma control and FEV (amount of air expired in the first second during a forced expiratory maneuver); number presents an average of the change from baseline to all follow-up points
Measured: Measured at Weeks 0, 4, 8, 12, 24
Secondary outcomes (5)
Asthma-specific Quality of Life
Scores range from 1 to 7 with higher values indicating better asthma-related quality of life; questionnaire measures functional impairments that are most troublesome to children as a result of their asthma; number presents an average of the change from baseline to all follow-up points
Measured: Measured at Weeks 0, 4, 8, 12, 16, 20, 24
Pre-bronchodilator Forced Expiratory Volume in 1 Second (FEV1)
A measure of pulmonary function, specifically the amount of expired air in the first second during a forced expiratory maneuver while seated; test performed at least 4 hours after last dose of short-acting bronchodilator and at least 12 hours after long-acting bronchodilator; number presents an average of the change from baseline to all follow-up points
Measured: Measured at Weeks 0, 4, 8, 12, 16, 20, 24
Rate of Episodes of Poor Asthma Control (EPAC)
Episodes of poor asthma control are defined as any one of the following:
- 2 consecutive days with peak flow at less than 70% of baseline
- prescription of oral corticosteroids for asthma
- seeking urgent medical care for asthma symptoms
EPAC was measured by review of daily diaries that were maintained over the entire course of followup, i.e, 24 weeks
Measured: Measured daily for 24 weeks by diary
Asthma Symptom Utility Index (ASUI)
ASUI is a utility score that ranges from 0 to 1, with higher values indicating better asthma control; info obtained from questionnaire about asthma symptoms; number presents an average of the change from baseline to all follow-up points
Measured: Measured at Weeks 0, 4, 8, 12, 16, 20, 24
Airways Reactivity (Assessed by Methacholine PC20)
Presence and degree of airway hyperresponsiveness; change from baseline to 24 weeks for airways reactivity assessed by methacholine post-diluent baseline (PC20) after medication holds
Measured: Measured at Weeks 0 and 24
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Mar 2007 (estimated)
- Study startMar 2007
- Primary completionApr 2011
- Study completionAug 2011
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 (8)Papers the sponsor has linked to this study.
- Other trials for AsthmaStudies of the same condition, open and under way.
- More trials run by Johns Hopkins UniversityThe 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 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 306 participants (actual)
Sponsor and investigators
- Lead sponsor
- Johns Hopkins University
- Sponsor type
- University, hospital or other
- Collaborators
- American Lung Association Asthma Clinical Research Centers, National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Principal investigator, Janet Holbrook, Johns Hopkins University
- Investigators
- Janet Holbrook, PhD, MPH, Principal investigator, Johns Hopkins University School of Public HealthGerald Teague, MD, Principal investigator, University of Virginia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00442013
- Sponsor's protocol ID
- 454
- Other IDs
- U01HL080450-01
- Acronym
- SARCA
- Status last verified
- Dec 2012
- First submitted
- 28 Feb 2007
- Last updated
- 6 Dec 2012
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Writing Committee for the American Lung Association Asthma Clinical Research Centers; Holbrook JT, Wise RA, Gold BD, Blake K, Brown ED, Castro M, Dozor AJ, Lima JJ, Mastronarde JG, Sockrider MM, Teague WG. Lansoprazole for children with poorly controlled asthma: a randomized controlled trial. JAMA. 2012 Jan 25;307(4):373-81. doi: 10.1001/jama.2011.2035.
PubMed 22274684Kaminsky DA, He J, Henderson R, Dixon AE, Irvin CG, Mastronarde J, Smith LJ, Sugar EA, Wise RA, Holbrook JT. Bronchodilator response does not associate with asthma control or symptom burden among patients with poorly controlled asthma. Respir Med. 2023 Nov;218:107375. doi: 10.1016/j.rmed.2023.107375. Epub 2023 Aug 1.
PubMed 37536444Lang JE, Holbrook JT, Mougey EB, Wei CY, Wise RA, Teague WG, Lima JJ; American Lung Association-Airways Clinical Research Centers. Lansoprazole Is Associated with Worsening Asthma Control in Children with the CYP2C19 Poor Metabolizer Phenotype. Ann Am Thorac Soc. 2015 Jun;12(6):878-85. doi: 10.1513/AnnalsATS.201408-391OC.
PubMed 25844821Fitzpatrick AM, Holbrook JT, Wei CY, Brown MS, Wise RA, Teague WG; American Lung Association's Asthma Clinical Research Centers Network. Exhaled breath condensate pH does not discriminate asymptomatic gastroesophageal reflux or the response to lansoprazole treatment in children with poorly controlled asthma. J Allergy Clin Immunol Pract. 2014 Sep-Oct;2(5):579-86.e7. doi: 10.1016/j.jaip.2014.04.006. Epub 2014 May 21.
PubMed 25213052Nguyen JM, Holbrook JT, Wei CY, Gerald LB, Teague WG, Wise RA; American Lung Association Asthma Clinical Research Centers. Validation and psychometric properties of the Asthma Control Questionnaire among children. J Allergy Clin Immunol. 2014 Jan;133(1):91-7.e1-6. doi: 10.1016/j.jaci.2013.06.029. Epub 2013 Aug 6.
PubMed 23932458Lima JJ, Lang JE, Mougey EB, Blake KB, Gong Y, Holbrook JT, Wise RA, Teague WG. Association of CYP2C19 polymorphisms and lansoprazole-associated respiratory adverse effects in children. J Pediatr. 2013 Sep;163(3):686-91. doi: 10.1016/j.jpeds.2013.03.017. Epub 2013 Apr 24.
PubMed 23623526Mougey E, Lang JE, Allayee H, Teague WG, Dozor AJ, Wise RA, Lima JJ. ALOX5 polymorphism associates with increased leukotriene production and reduced lung function and asthma control in children with poorly controlled asthma. Clin Exp Allergy. 2013 May;43(5):512-20. doi: 10.1111/cea.12076.
PubMed 23600541Blake K, Teague WG. Gastroesophageal reflux disease and childhood asthma. Curr Opin Pulm Med. 2013 Jan;19(1):24-9. doi: 10.1097/MCP.0b013e32835b582b.
PubMed 23197288
Study at a glance
From the registry record, last updated by the sponsor on 6 Dec 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase III: The Study of Acid Reflux in Children With Asthma
- ClinicalTrials.gov ID
- NCT00442013
- Acronym / sponsor ID
- SARCA / 454
- Conditions
- Asthma
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 306 participants (actual)
- Lead sponsor
- Johns Hopkins UniversityUniversity, hospital or other
- Collaborators
- American Lung Association Asthma Clinical Research Centers, National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- Mar 2007
- Primary completion
- Apr 2011 (actual)
- Study completion
- Aug 2011 (actual)
- First posted
- 1 Mar 2007 (estimated)
- Results
- Posted 6 Dec 2012
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Many individuals with asthma also experience gastroesophageal reflux disease (GERD), a condition in which excess stomach acid flows backwards into the esophagus. This study will evaluate the effectiveness of lansoprazole, a medication commonly used to treat GERD in improving asthma control and reducing symptoms in children with poorly controlled asthma.
Detailed description
Approximately 75% of individuals with asthma also experience GERD. If left untreated, GERD can lead to lung damage, esophageal ulcers, or esophageal cancer. Children and adults whose asthma is poorly controlled with inhaled corticosteroids are often prescribed drugs that suppress gastric acid production; however, this treatment is expensive and has not been proven beneficial. Lansoprazole is a proton pump inhibitor medication that reduces stomach acid production. It may also decrease the frequency of asthma exacerbations in children with poorly controlled asthma. The purpose of this study is to evaluate the effectiveness of lansoprazole at improving asthma control, quality of life, and lung function in children with asthma.
This study will enroll children with poor asthma control who are receiving inhaled corticosteroids. Participants will be randomly assigned to receive either lansoprazole or placebo on a daily basis for 6 months. Study visits will occur at baseline and Weeks 4, 8, 12, 16, 20, and 24, and participants will be contacted by telephone at Week 2. A physical examination, blood collection, and methacholine challenge test will occur at selected visits. The methacholine challenge test will be used to help determine the severity of an individual's asthma. Lung function and airway pressure testing, questionnaires on asthma control and quality of life, medical history review, pill counts, and distribution of medication will occur at most study visits. Participants will record asthma symptoms and lung function in a daily diary throughout the study. A select group of participants will also wear an esophageal potential Hydrogen (pH) monitor for 24 hours to evaluate GERD symptoms and the relationship between GERD and asthma symptoms.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Lansoprazole | Experimental | Drug: LansoprazoleParticipants in this group will receive lansoprazole on a daily basis for 6 months. There are two doses of Lansoprazole solutab provided to participants depending on participant body weight at randomization: 1.) less than 30kg will receive 15mg po once daily or 2.)greater or equal to 30kg 30mg po once daily. |
| Matching placebo | Placebo comparator | Drug: Matching placeboParticipants in this group will receive a matching placebo on a daily basis for 6 months. To maintain masking, there are two doses of the matching placebo provided to participants depending on participant body weight at randomization: 1.) less than 30kg will receive 15mg po once daily or 2.)greater or equal to 30kg 30mg po once daily. |
Who may qualify
- Ages
- 6 to 17 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child
Key inclusion criteria (12 listed)
- Physician-diagnosed asthma
- At least one of the following lung function criteria must be documented in the year prior to study entry:
- Currently on stable dose of daily inhaled corticosteroid for asthma control (i.e., inhaled corticosteroid equivalent to 2 puffs of 44 ug twice per day [176 ug] of fluticasone or greater for 8 weeks or longer prior to study entry)
- Poor asthma control as defined by any one of the following criteria:
- Absence of GERD symptoms at the time of study entry
Key exclusion criteria (18 listed)
- Previous anti-reflux or peptic ulcer surgery
- Previous tracheoesophageal fistula repair
- FEV1 less than 60% of predicted normal value at screening visit and as measured immediately before methacholine bronchoprovocation; methacholine bronchoprovocation will be limited to participants with a FEV1 greater than or equal to 70% of predicted value in accordance with American Thoracic Society (ATS) guidelines
- History of a premature birth of less than 33 weeks gestation or any neonate requiring a significant level of respiratory care, including mechanical ventilation
- Any major chronic illness, including but not limited to non-skin cancer, cystic fibrosis, bronchiectasis, myelomeningocele, sickle cell anemia, endocrine disease, congenital heart disease, congestive heart failure, stroke, severe hypertension, insulin-dependent diabetes mellitus, kidney failure, liver disorder, immunodeficiency state, significant neuro-developmental delay or behavioral disorder (excluding mild attention deficit hyperactivity disorder), or other condition that would interfere with participation in the study
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 |
|---|---|---|
| LansoprazoleAlso: PrevacidParticipants less than 30 kg will receive 15 mg a day, by mouth; participants greater than or equal to 30 kg will receive 30 mg a day, by mouth. | Drug | Lansoprazole |
| Matching placeboAlso: Matching placebo manufactured by TAP PharmaceuticalsParticipants will receive a placebo pill on a daily basis. To maintain masking, there are two doses of the matching placebo provided to participants depending on participant body weight at randomization: 1.) less than 30kg will receive 15mg po once daily or 2.)greater or equal to 30kg 30mg po once daily. | Drug | Matching placebo |
Primary outcome
Change in Juniper Asthma Control Score (ACS)
Time frame: Measured at Weeks 0, 4, 8, 12, 24
Score ranges from 0 to 6, a lower score indicated better asthma control. Scores above 1.5 are indicative of poor asthma control; score obtained from questionnaire with 6 questions related to asthma control and FEV (amount of air expired in the first second during a forced expiratory maneuver); number presents an average of the change from baseline to all follow-up points
5 secondary outcomes
Asthma-specific Quality of Life
Time frame: Measured at Weeks 0, 4, 8, 12, 16, 20, 24
Pre-bronchodilator Forced Expiratory Volume in 1 Second (FEV1)
Time frame: Measured at Weeks 0, 4, 8, 12, 16, 20, 24
Rate of Episodes of Poor Asthma Control (EPAC)
Time frame: Measured daily for 24 weeks by diary
Asthma Symptom Utility Index (ASUI)
Time frame: Measured at Weeks 0, 4, 8, 12, 16, 20, 24
Airways Reactivity (Assessed by Methacholine PC20)
Time frame: Measured at Weeks 0 and 24
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Dec 2012.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 22274684Writing Committee for the American Lung Association Asthma Clinical Research Centers; Holbrook JT, Wise RA, Gold BD, Blake K, Brown ED, Castro M, Dozor AJ, Lima JJ, Mastronarde JG, Sockrider MM, Teague WG. Lansoprazole for children with poorly controlled asthma: a randomized controlled trial. JAMA. 2012 Jan 25;307(4):373-81. doi: 10.1001/jama.2011.2035.
- Derived from this study: PubMed 37536444Kaminsky DA, He J, Henderson R, Dixon AE, Irvin CG, Mastronarde J, Smith LJ, Sugar EA, Wise RA, Holbrook JT. Bronchodilator response does not associate with asthma control or symptom burden among patients with poorly controlled asthma. Respir Med. 2023 Nov;218:107375. doi: 10.1016/j.rmed.2023.107375. Epub 2023 Aug 1.
- Derived from this study: PubMed 25844821Lang JE, Holbrook JT, Mougey EB, Wei CY, Wise RA, Teague WG, Lima JJ; American Lung Association-Airways Clinical Research Centers. Lansoprazole Is Associated with Worsening Asthma Control in Children with the CYP2C19 Poor Metabolizer Phenotype. Ann Am Thorac Soc. 2015 Jun;12(6):878-85. doi: 10.1513/AnnalsATS.201408-391OC.
- Derived from this study: PubMed 25213052Fitzpatrick AM, Holbrook JT, Wei CY, Brown MS, Wise RA, Teague WG; American Lung Association's Asthma Clinical Research Centers Network. Exhaled breath condensate pH does not discriminate asymptomatic gastroesophageal reflux or the response to lansoprazole treatment in children with poorly controlled asthma. J Allergy Clin Immunol Pract. 2014 Sep-Oct;2(5):579-86.e7. doi: 10.1016/j.jaip.2014.04.006. Epub 2014 May 21.
- Derived from this study: PubMed 23932458Nguyen JM, Holbrook JT, Wei CY, Gerald LB, Teague WG, Wise RA; American Lung Association Asthma Clinical Research Centers. Validation and psychometric properties of the Asthma Control Questionnaire among children. J Allergy Clin Immunol. 2014 Jan;133(1):91-7.e1-6. doi: 10.1016/j.jaci.2013.06.029. Epub 2013 Aug 6.
- Derived from this study: PubMed 23623526Lima JJ, Lang JE, Mougey EB, Blake KB, Gong Y, Holbrook JT, Wise RA, Teague WG. Association of CYP2C19 polymorphisms and lansoprazole-associated respiratory adverse effects in children. J Pediatr. 2013 Sep;163(3):686-91. doi: 10.1016/j.jpeds.2013.03.017. Epub 2013 Apr 24.
- Derived from this study: PubMed 23600541Mougey E, Lang JE, Allayee H, Teague WG, Dozor AJ, Wise RA, Lima JJ. ALOX5 polymorphism associates with increased leukotriene production and reduced lung function and asthma control in children with poorly controlled asthma. Clin Exp Allergy. 2013 May;43(5):512-20. doi: 10.1111/cea.12076.
- Derived from this study: PubMed 23197288Blake K, Teague WG. Gastroesophageal reflux disease and childhood asthma. Curr Opin Pulm Med. 2013 Jan;19(1):24-9. doi: 10.1097/MCP.0b013e32835b582b.
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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.
Janet Holbrook, PhD, MPH principal investigator
Johns Hopkins University School of Public Health
Gerald Teague, MD principal investigator
University of Virginia
20 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Lansoprazole in people with Asthma, run by Johns Hopkins University at 20 sites 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 12 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 6 Dec 2012. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 20 sites 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
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 6 Dec 2012). 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?
Change in Juniper Asthma Control Score (ACS) (time frame: Measured at Weeks 0, 4, 8, 12, 24). 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 NCT00442013, which also lists 8 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 6 Dec 2012.