Celiac DiseasePhase 4NCT04788797
AN-PEP on Gluten Exposure in Celiacs
A Phase 4 study testing Prolyl Endopeptidase in people with Celiac Disease, run by Dr. C. Bonorino Udaondo Gastroenterology Hospital at 1 site in Argentina.
Trial summary
The AN-PEP, an Aspergillus niger derived endopeptidase, has been developed aiming to produce a complete luminal detoxification of gluten. If AN-PEP is able to produce a complete luminal digestion of gluten in the context of the real life of celiac disease (CeD) patients is unknown. Read more about this study
- Who is it for?
- Ages 17 to 75 years
- Conditions the study is for
- Celiac Disease
- What is being tested?
- Prolyl Endopeptidase
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 40 participants
- Where
- 1 siteArgentina
- Study dates
- 17 Mar 2021to 31 Jul 2022
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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 17 to 75 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Over 18 years
- Diagnosis of celiac disease
- Completion of Gluten-free Diet for at least two years without evidence of voluntary violations.
- Patients who do not report symptoms of constipation or illnesses or medications (cathartics, antidiarrheals, etc.) that alter the bowel movement rhythm (accepted rhythm: between 2 times / day to 1 every other day) and diuresis (diuretics). Proton-pump inhibitor.
- Signature of the informed consent
Who cannot join
- Patients not interested or unable to collaborate with the questionnaires and collection of fecal matter.
- Place of residence of the participant more than 4 hours from the hospital, which interferes with the viability of the sample.
- Complicated CD (refractory CD type II, ulcerative jejunoileitis, lymphoma).
- Concomitant pathologies that are decompensated or untreated at study entry (type I or II diabetes mellitus; hyperthyroidism; hypothyroidism; kidney failure,).
Trial locations and contacts
1 site in 1 country.
Argentina1 site
Dr. C. Bonorino Udaondo Gastroenterology Hospital
Ciudad Autonoma de Buenos Aires, Buenos Aires, 1602
About this study
Official title: Effect of the Endopeptidase AN-PEP on Gluten Exposure in Real Life in Celiac Disease Patients Treated With a Long-term Gluten-free Diet. Exploratory, Interventional, Prospective, Controlled and Double Blind Study
The AN-PEP, an Aspergillus niger derived endopeptidase, has been developed aiming to produce a complete luminal detoxification of gluten. If AN-PEP is able to produce a complete luminal digestion of gluten in the context of the real life of celiac disease (CeD) patients is unknown. Hypothetically, AN-PEP effect could be detected by the reduction in the excretion of GIP in stool and urine.
The objective of this study is to establish the effect of the daily administration of AN-PEP compared to placebo on GIP excretion in an interventional, prospective, randomized, comparative, double-blind study in conditions mimicking the real-life of CeD treated patients. The study consists in a four-week GFD stabilization period followed by a four-week study period with patients randomized to receive active AN-PEP or placebo in a blindly manner.
Read the detailed description
Background: The strict gluten-free diet (GFD) is the only accepted treatment for celiac disease (CeD). However, performing a strict diet is still a non solved problem affecting the future of patients. In a real-life study it was recently shown that 89% of treated CeD patients performing a strict diet have contact with dietary gluten at least one week per 4 weeks of testing and averaging 3 weeks per month. Furthermore, 40% of patients excreted gliadin immunogenic peptides (GIP) (surrogated markers of gluten exposure) in the range for immunological activation and intestinal mucosal damage. Endopeptidases to produce a complete intraluminal proteolysis of gluten avoiding antigenic stimulation were produced to avoid damage of continuous gluten exposure. AN-PEP is an Aspergillus niger derived endopeptidase has been produced aiming to luminal detoxification of gluten have been explored for its clinical effect. However, whether AN-PEP is able to completely destroy gluten in the context of the real life of CeD patients is still unknown. Hypothesis: The investigators estimate that AN-PEP is an effective therapy for proteolysis for gluten exposure in the real-life of CeD patients and that the effect could be detected by the reduction in the excretion of GIP in stool and urine based on a clinical research model that we developed. AIMS: to establish the effect of daily administration of AN-PEP compared to placebo in terms of: (1) frequency of GIP excretion in stool and urine episodes in 4 weeks; (2) concentration of GIP excretion for both arms; and (3) differences in proportion of patients excreting GIP above the threshold for mucosal damage (>2 µg/g of GIP in stool or >12 ng/mL in urine). Study design: Interventional, prospective, randomized, comparative, double-blind study. Components: 1- four-week GFD stabilization period; 2-Randomization. 3- four4-week study period: Patients blinded-receive active AN-PEP (GliadinX®) at a dose of 2 capsules/breakfast, lunch and dinner (study arm), or 2 capsules at same time points of placebo (specially designed and prepared for the study) (Placebo arm).
- Conditions
- Celiac Disease
- Being tested
- Prolyl Endopeptidase, Placebo
- Keywords
- celiac disease, endopeptidases, gliadin immunogenic peptides
- Medical subject headings
- Celiac Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Prolyl EndopeptidaseDrug
Also called GliadinX
Two capsules three times a day.
PlaceboOther
Two capsules three times a day
| Study group | Role | What they receive |
|---|---|---|
| Prolyl Endopeptidase | Active comparator | Patients blinded-receive active AN-PEP at a dose of 2 capsules/breakfast, lunch and dinner during 8 weeks (study arm) Receives: Drug: Prolyl Endopeptidase |
| Placebo | Placebo comparator | Patients blinded-receive 2 capsules of a placebo (specially designed and prepared for the study) at breakfast, lunch and dinner during 8 weeks (Placebo arm). Receives: Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Frequency of GIP excretion in stool
To establish the effect of daily administration of AN-PEP compared to placebo in terms of frequency of GIP excretion in stool episodes in 4 weeks.
Measured: 4 weeks
Weekly concentration of GIP excretion in stool
To determine weekly concentration of GIP excretion in stool (µg/g of GIP) for both patients randomized to AN-PEP or placebo.
Measured: 4 weeks
Proportion of patients excreting GIP
To establish the proportion of patients excreting GIP above the theoretical threshold for mucosal damage (>1.6 µg/g of GIP in stool or >12 ng/mL in urine)
Measured: 4 weeks
Frequency of GIP excretion in urine
To establish the effect of daily administration of AN-PEP compared to placebo in terms of frequency of GIP excretion in urine epidodes in 4 weeks
Measured: 4 weeks
Weekly concentration of GIP excretion in urine
To determine weekly concentration of GIP excretion in urine (ng/mL) for both patients randomized to AN-PEP or placebo.
Measured: 4 weeks
Secondary outcomes (4)
Clinical effect of AN-PEP vs placebo
2.1- To establish differences in the clinical effect of AN-PEP vs. placebo in symptomatic celiac patients in terms of the Celiac Clinical Score comparing baseline scores vs. those from the end of the study period. Celiac Clinical Score is made up of sixteen items, 11 of which evaluate "specific symptoms" and 5 evaluate "general health". Each question is answered on a Likert scale from 1 to 5. Overall symptom scores were calculated through simple addition, with higher scores denoting more severe symptoms. Scores of 45 or higher are associated with a relatively poor quality of life and worse GFD adherence. Score less than 45 are associated with better quality of life and gluten adherence
Measured: 4 weeks
Differences in quality of life scores
To determine differences in quality of life according to the Short Form 36 questionnaire in the study period in symptomatic and asymptomatic patients. To score this questionnaire scales are standardized with a scoring algorithm to obtain a score ranging from 0 to 100. Higher scores indicate better health status, and a mean score of 50 has been articulated as a normative value for all scales.
Measured: 4 weeks
Major symptoms
To explore changes in the daily report of major symptoms (abdominal pain, discomfort, borborygmi, distension, diarrhea) (Likert scale of seven points) in symptomatic patients by using a daily report in a telephonic APP.
Measured: 4 weeks
Biochemical effect of AN-PEP vs. placebo
to evaluate changes that occur during the study period in concentrations of CD-specific antibodies (IgA TG2 and DGP antibodies -AU/mL-) comparing consumption of AN-PEP vs. placebo.
Measured: 4 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Mar 2021
- Study start17 Mar 2021
- Primary completion30 Jul 2022
- Study completion31 Jul 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Celiac DiseaseStudies 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
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Dr. C. Bonorino Udaondo Gastroenterology Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Edgardo Smecuol, Dr. C. Bonorino Udaondo Gastroenterology Hospital
- Investigators
- Edgardo G Smecuol, Study chair, Dr. C. Bonorino Udaondo Gastroenterology Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04788797
- Sponsor's protocol ID
- DrUdaondo
- Status last verified
- Feb 2023
- First submitted
- 3 Feb 2021
- Last updated
- 24 Feb 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Pinto-Sanchez MI, Hall GB, Ghajar K, Nardelli A, Bolino C, Lau JT, Martin FP, Cominetti O, Welsh C, Rieder A, Traynor J, Gregory C, De Palma G, Pigrau M, Ford AC, Macri J, Berger B, Bergonzelli G, Surette MG, Collins SM, Moayyedi P, Bercik P. Probiotic Bifidobacterium longum NCC3001 Reduces Depression Scores and Alters Brain Activity: A Pilot Study in Patients With Irritable Bowel Syndrome. Gastroenterology. 2017 Aug;153(2):448-459.e8. doi: 10.1053/j.gastro.2017.05.003. Epub 2017 May 5.
PubMed 28483500Castellano E, Attanasio R, Gianotti L, Cesario F, Tassone F, Borretta G. Forearm DXA Increases the Rate of Patients With Asymptomatic Primary Hyperparathyroidism Meeting Surgical Criteria. J Clin Endocrinol Metab. 2016 Jul;101(7):2728-32. doi: 10.1210/jc.2016-1513. Epub 2016 Apr 12.
PubMed 27070376Ricano-Ponce I, Gutierrez-Achury J, Costa AF, Deelen P, Kurilshikov A, Zorro MM, Platteel M, van der Graaf A; Consortium for the study of genetic associations of celiac disease in Latin-America; Sanna S, Daffra O, Zhernakova A, Fu J, Trynka G, Smecuol E, Niveloni SI, Bai JC, Kumar V, Wijmenga C. Immunochip meta-analysis in European and Argentinian populations identifies two novel genetic loci associated with celiac disease. Eur J Hum Genet. 2020 Mar;28(3):313-323. doi: 10.1038/s41431-019-0520-4. Epub 2019 Oct 7.
PubMed 31591516Pinto-Sanchez MI, Bai JC. Toward New Paradigms in the Follow Up of Adult Patients With Celiac Disease on a Gluten-Free Diet. Front Nutr. 2019 Oct 1;6:153. doi: 10.3389/fnut.2019.00153. eCollection 2019.
PubMed 31632977Penny HA, Raju SA, Lau MS, Marks LJ, Baggus EM, Bai JC, Bassotti G, Bontkes HJ, Carroccio A, Danciu M, Derakhshan MH, Ensari A, Ganji A, Green PHR, Johnson MW, Ishaq S, Lebwohl B, Levene A, Maxim R, Mohaghegh Shalmani H, Rostami-Nejad M, Rowlands D, Spiridon IA, Srivastava A, Volta U, Villanacci V, Wild G, Cross SS, Rostami K, Sanders DS. Accuracy of a no-biopsy approach for the diagnosis of coeliac disease across different adult cohorts. Gut. 2021 May;70(5):876-883. doi: 10.1136/gutjnl-2020-320913. Epub 2020 Nov 2.
PubMed 33139268Seiler CL, Kiflen M, Stefanolo JP, Bai JC, Bercik P, Kelly CP, Verdu EF, Moayyedi P, Pinto-Sanchez MI. Probiotics for Celiac Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Am J Gastroenterol. 2020 Oct;115(10):1584-1595. doi: 10.14309/ajg.0000000000000749.
PubMed 32740074Stefanolo JP, Talamo M, Dodds S, de la Paz Temprano M, Costa AF, Moreno ML, Pinto-Sanchez MI, Smecuol E, Vazquez H, Gonzalez A, Niveloni SI, Maurino E, Verdu EF, Bai JC. Real-World Gluten Exposure in Patients With Celiac Disease on Gluten-Free Diets, Determined From Gliadin Immunogenic Peptides in Urine and Fecal Samples. Clin Gastroenterol Hepatol. 2021 Mar;19(3):484-491.e1. doi: 10.1016/j.cgh.2020.03.038. Epub 2020 Mar 23.
PubMed 32217152Smecuol E, Constante M, Temprano MP, Costa AF, Moreno ML, Pinto-Sanchez MI, Vazquez H, Stefanolo JP, Gonzalez AF, D'Adamo CR, Niveloni SI, Maurino E, Verdu EF, Bai JC. Effect of Bifidobacterium infantis NLS super strain in symptomatic coeliac disease patients on long-term gluten-free diet - an exploratory study. Benef Microbes. 2020 Oct 12;11(6):527-534. doi: 10.3920/BM2020.0016. Epub 2020 Oct 9.
PubMed 33032471
Study at a glance
From the registry record, last updated by the sponsor on 24 Feb 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of the Endopeptidase AN-PEP on Gluten Exposure in Real Life in Celiac Disease Patients Treated With a Long-term Gluten-free Diet. Exploratory, Interventional, Prospective, Controlled and Double Blind Study
- ClinicalTrials.gov ID
- NCT04788797
- Acronym / sponsor ID
- DrUdaondo
- Conditions
- Celiac Disease
- Keywords
- celiac disease, endopeptidases, gliadin immunogenic peptides
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Dr. C. Bonorino Udaondo Gastroenterology HospitalOther government
- Study start
- 17 Mar 2021 (actual)
- Primary completion
- 30 Jul 2022 (actual)
- Study completion
- 31 Jul 2022 (actual)
- First posted
- 9 Mar 2021 (actual)
- 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 AN-PEP, an Aspergillus niger derived endopeptidase, has been developed aiming to produce a complete luminal detoxification of gluten. If AN-PEP is able to produce a complete luminal digestion of gluten in the context of the real life of celiac disease (CeD) patients is unknown. Hypothetically, AN-PEP effect could be detected by the reduction in the excretion of GIP in stool and urine.
The objective of this study is to establish the effect of the daily administration of AN-PEP compared to placebo on GIP excretion in an interventional, prospective, randomized, comparative, double-blind study in conditions mimicking the real-life of CeD treated patients. The study consists in a four-week GFD stabilization period followed by a four-week study period with patients randomized to receive active AN-PEP or placebo in a blindly manner.
Detailed description
Background: The strict gluten-free diet (GFD) is the only accepted treatment for celiac disease (CeD). However, performing a strict diet is still a non solved problem affecting the future of patients. In a real-life study it was recently shown that 89% of treated CeD patients performing a strict diet have contact with dietary gluten at least one week per 4 weeks of testing and averaging 3 weeks per month. Furthermore, 40% of patients excreted gliadin immunogenic peptides (GIP) (surrogated markers of gluten exposure) in the range for immunological activation and intestinal mucosal damage. Endopeptidases to produce a complete intraluminal proteolysis of gluten avoiding antigenic stimulation were produced to avoid damage of continuous gluten exposure. AN-PEP is an Aspergillus niger derived endopeptidase has been produced aiming to luminal detoxification of gluten have been explored for its clinical effect. However, whether AN-PEP is able to completely destroy gluten in the context of the real life of CeD patients is still unknown. Hypothesis: The investigators estimate that AN-PEP is an effective therapy for proteolysis for gluten exposure in the real-life of CeD patients and that the effect could be detected by the reduction in the excretion of GIP in stool and urine based on a clinical research model that we developed. AIMS: to establish the effect of daily administration of AN-PEP compared to placebo in terms of: (1) frequency of GIP excretion in stool and urine episodes in 4 weeks; (2) concentration of GIP excretion for both arms; and (3) differences in proportion of patients excreting GIP above the threshold for mucosal damage (>2 µg/g of GIP in stool or >12 ng/mL in urine). Study design: Interventional, prospective, randomized, comparative, double-blind study. Components: 1- four-week GFD stabilization period; 2-Randomization. 3- four4-week study period: Patients blinded-receive active AN-PEP (GliadinX®) at a dose of 2 capsules/breakfast, lunch and dinner (study arm), or 2 capsules at same time points of placebo (specially designed and prepared for the study) (Placebo arm).
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 |
|---|---|---|
| Prolyl Endopeptidase | Active comparator | Drug: Prolyl EndopeptidasePatients blinded-receive active AN-PEP at a dose of 2 capsules/breakfast, lunch and dinner during 8 weeks (study arm) |
| Placebo | Placebo comparator | Other: PlaceboPatients blinded-receive 2 capsules of a placebo (specially designed and prepared for the study) at breakfast, lunch and dinner during 8 weeks (Placebo arm). |
Who may qualify
- Ages
- 17 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (5 listed)
- Over 18 years
- Diagnosis of celiac disease
- Completion of Gluten-free Diet for at least two years without evidence of voluntary violations.
- Patients who do not report symptoms of constipation or illnesses or medications (cathartics, antidiarrheals, etc.) that alter the bowel movement rhythm (accepted rhythm: between 2 times / day to 1 every other day) and diuresis (diuretics). Proton-pump inhibitor.
- Signature of the informed consent
Key exclusion criteria (4 listed)
- Patients not interested or unable to collaborate with the questionnaires and collection of fecal matter.
- Place of residence of the participant more than 4 hours from the hospital, which interferes with the viability of the sample.
- Complicated CD (refractory CD type II, ulcerative jejunoileitis, lymphoma).
- Concomitant pathologies that are decompensated or untreated at study entry (type I or II diabetes mellitus; hyperthyroidism; hypothyroidism; kidney failure,).
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 |
|---|---|---|
| Prolyl EndopeptidaseAlso: GliadinXTwo capsules three times a day. | Drug | Prolyl Endopeptidase |
| PlaceboTwo capsules three times a day | Other | Placebo |
Primary outcome
Frequency of GIP excretion in stool
Time frame: 4 weeks
To establish the effect of daily administration of AN-PEP compared to placebo in terms of frequency of GIP excretion in stool episodes in 4 weeks.
Weekly concentration of GIP excretion in stool
Time frame: 4 weeks
To determine weekly concentration of GIP excretion in stool (µg/g of GIP) for both patients randomized to AN-PEP or placebo.
Proportion of patients excreting GIP
Time frame: 4 weeks
To establish the proportion of patients excreting GIP above the theoretical threshold for mucosal damage (>1.6 µg/g of GIP in stool or >12 ng/mL in urine)
Frequency of GIP excretion in urine
Time frame: 4 weeks
To establish the effect of daily administration of AN-PEP compared to placebo in terms of frequency of GIP excretion in urine epidodes in 4 weeks
Weekly concentration of GIP excretion in urine
Time frame: 4 weeks
To determine weekly concentration of GIP excretion in urine (ng/mL) for both patients randomized to AN-PEP or placebo.
4 secondary outcomes
Clinical effect of AN-PEP vs placebo
Time frame: 4 weeks
Differences in quality of life scores
Time frame: 4 weeks
Major symptoms
Time frame: 4 weeks
Biochemical effect of AN-PEP vs. placebo
Time frame: 4 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Feb 2023.
- Background: PubMed 28483500Pinto-Sanchez MI, Hall GB, Ghajar K, Nardelli A, Bolino C, Lau JT, Martin FP, Cominetti O, Welsh C, Rieder A, Traynor J, Gregory C, De Palma G, Pigrau M, Ford AC, Macri J, Berger B, Bergonzelli G, Surette MG, Collins SM, Moayyedi P, Bercik P. Probiotic Bifidobacterium longum NCC3001 Reduces Depression Scores and Alters Brain Activity: A Pilot Study in Patients With Irritable Bowel Syndrome. Gastroenterology. 2017 Aug;153(2):448-459.e8. doi: 10.1053/j.gastro.2017.05.003. Epub 2017 May 5.
- Background: PubMed 27070376Castellano E, Attanasio R, Gianotti L, Cesario F, Tassone F, Borretta G. Forearm DXA Increases the Rate of Patients With Asymptomatic Primary Hyperparathyroidism Meeting Surgical Criteria. J Clin Endocrinol Metab. 2016 Jul;101(7):2728-32. doi: 10.1210/jc.2016-1513. Epub 2016 Apr 12.
- Background: PubMed 31591516Ricano-Ponce I, Gutierrez-Achury J, Costa AF, Deelen P, Kurilshikov A, Zorro MM, Platteel M, van der Graaf A; Consortium for the study of genetic associations of celiac disease in Latin-America; Sanna S, Daffra O, Zhernakova A, Fu J, Trynka G, Smecuol E, Niveloni SI, Bai JC, Kumar V, Wijmenga C. Immunochip meta-analysis in European and Argentinian populations identifies two novel genetic loci associated with celiac disease. Eur J Hum Genet. 2020 Mar;28(3):313-323. doi: 10.1038/s41431-019-0520-4. Epub 2019 Oct 7.
- Background: PubMed 31632977Pinto-Sanchez MI, Bai JC. Toward New Paradigms in the Follow Up of Adult Patients With Celiac Disease on a Gluten-Free Diet. Front Nutr. 2019 Oct 1;6:153. doi: 10.3389/fnut.2019.00153. eCollection 2019.
- Background: PubMed 33139268Penny HA, Raju SA, Lau MS, Marks LJ, Baggus EM, Bai JC, Bassotti G, Bontkes HJ, Carroccio A, Danciu M, Derakhshan MH, Ensari A, Ganji A, Green PHR, Johnson MW, Ishaq S, Lebwohl B, Levene A, Maxim R, Mohaghegh Shalmani H, Rostami-Nejad M, Rowlands D, Spiridon IA, Srivastava A, Volta U, Villanacci V, Wild G, Cross SS, Rostami K, Sanders DS. Accuracy of a no-biopsy approach for the diagnosis of coeliac disease across different adult cohorts. Gut. 2021 May;70(5):876-883. doi: 10.1136/gutjnl-2020-320913. Epub 2020 Nov 2.
- Background: PubMed 32740074Seiler CL, Kiflen M, Stefanolo JP, Bai JC, Bercik P, Kelly CP, Verdu EF, Moayyedi P, Pinto-Sanchez MI. Probiotics for Celiac Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Am J Gastroenterol. 2020 Oct;115(10):1584-1595. doi: 10.14309/ajg.0000000000000749.
- Background: PubMed 32217152Stefanolo JP, Talamo M, Dodds S, de la Paz Temprano M, Costa AF, Moreno ML, Pinto-Sanchez MI, Smecuol E, Vazquez H, Gonzalez A, Niveloni SI, Maurino E, Verdu EF, Bai JC. Real-World Gluten Exposure in Patients With Celiac Disease on Gluten-Free Diets, Determined From Gliadin Immunogenic Peptides in Urine and Fecal Samples. Clin Gastroenterol Hepatol. 2021 Mar;19(3):484-491.e1. doi: 10.1016/j.cgh.2020.03.038. Epub 2020 Mar 23.
- Background: PubMed 33032471Smecuol E, Constante M, Temprano MP, Costa AF, Moreno ML, Pinto-Sanchez MI, Vazquez H, Stefanolo JP, Gonzalez AF, D'Adamo CR, Niveloni SI, Maurino E, Verdu EF, Bai JC. Effect of Bifidobacterium infantis NLS super strain in symptomatic coeliac disease patients on long-term gluten-free diet - an exploratory study. Benef Microbes. 2020 Oct 12;11(6):527-534. doi: 10.3920/BM2020.0016. Epub 2020 Oct 9.
- Individual participant dataSharing planned: No
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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.
Edgardo G Smecuol study chair
Dr. C. Bonorino Udaondo Gastroenterology Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Prolyl Endopeptidase in people with Celiac Disease, run by Dr. C. Bonorino Udaondo Gastroenterology Hospital at 1 site in Argentina.
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 5 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: finished, as of the sponsor's last update on 24 Feb 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 Argentina. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Frequency of GIP excretion in stool (time frame: 4 weeks). The study lists 5 primary outcomes in all. 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 NCT04788797, 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 24 Feb 2023.