An interventional study of Placebo and Alanine in Fructose Intolerance, sponsored by Augusta University. Status unknown at 1 site in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2022-07-21.
Sponsored by Augusta University · Not applicable, Interventional, and Treatment
Background:
Over the past few decades, fructose is increasingly being used as a sweetener/ additive in a variety of foods. Incomplete absorption of fructose has been implicated as a cause of gastrointestinal symptoms. In tertiary care centers, the prevalence of fructose malabsorption in subjects with unexplained GI symptoms is thought to be between 11-50%, when assessed with breath tests following administration of 25 grams of fructose in a 10% solution. Restriction of dietary fructose has been shown to improve symptoms in these patients to an extent. Currently, there are no therapeutic agents that improve intestinal fructose absorption and thereby decrease symptoms. Studies in the pediatric population have shown that fructose absorption in the small intestine is increased in the presence of glucose or amino acids, especially alanine.
Objective:
The investigators' objective is to assess whether co-administration of an oral solution of L-alanine facilitates fructose absorption and decreases gastrointestinal (GI) symptoms associated with fructose malabsorption in subjects undergoing standard fructose breath test when compared to placebo.
Methods and analysis:
The investigators propose a randomized, double-blind study in 40 subjects with known fructose intolerance. After an overnight fast, each subject will receive an oral solution of 12.5 grams of alanine in 125cc of water or placebo. Next, the subject will receive an oral solution of 25 grams of fructose in a 10% solution. Serum, urine and breath samples will be collected at baseline and at 30-minute intervals for 4 hours. GI symptoms will also be assessed and recorded at 30 minute intervals using a standard questionnaire. Repeated measures ANOVA will be used to compare the data obtained during the study protocol with the baseline (pre-study) data.
Expected outcomes:
Co-administration of alanine with fructose may improve fructose absorption and decrease symptoms in subjects with fructose intolerance.
Hypothesis: Ingestion of alanine along with fructose, will facilitate intestinal absorption of fructose in subjects with fructose malabsorption.
Aim: To investigate the effects of co-administration of equi-molar doses of alanine on a) the absorption of fructose and b) the occurrence of GI symptoms in subjects with fructose malabsorption.
Augusta University is the lead sponsor of 180 studies on the registry; 24 are open to participants now.
Of its 10 completed or terminated interventional studies of FDA-regulated products, 3 (30%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Subjects will receive placebo (mix of sugar and salt).
Dietary Supplement: Placebo
Subjects will receive 12.5 grams of alanine
Dietary Supplement: Alanine
Subjects will receive 25 grams of alanine.
Dietary Supplement: Alanine
Subjects will receive placebo (mix of sugar and salt) 20 minutes before consuming fructose.
Subjects will receive 12.5 grams of alanine 20 minutes before consuming fructose.
Subjects will receive 25 grams of alanine 20 minutes before consuming fructose.
Decrease breath Hydrogen and/or Methane production
Time frame: less than 6 months
Occurrence or severity of GI symptoms during the test
Time frame: less than 6 months
The record gives a start of Sep 2007, a primary completion of Dec 2023 and a completion of Apr 2024. It does not say whether these dates are actual or estimated.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Studies of the drug tested here: Alanine
Fructose Intolerance