An observational study in Lactose Intolerance, sponsored by Assiut University. Not yet recruiting. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-01-06.
Sponsored by Assiut University · Observational
This cross-sectional study aims to determine the prevalence of lactose intolerance among patients with chronic diarrhea, assess its correlation with age and gender, and evaluate common symptoms in affected patients. The study will collect demographic data, conduct lactose intolerance testing via PCR, and use a symptom questionnaire.
The study is designed as a cross-sectional analysis conducted at a single healthcare center. Its primary objectives are:
To determine the point prevalence of lactose intolerance in patients suffering from chronic diarrhea (lasting more than four weeks).
To explore potential correlations between lactose intolerance and demographic factors such as age and gender.
To identify the most common symptoms associated with lactose intolerance in this patient population.
Methodology:
Data Collection: Demographic information (age, sex, medical history, and diarrhea duration) will be gathered.
Lactose Intolerance Testing: Polymerase Chain Reaction (PCR) will be employed to diagnose lactose intolerance.
Symptom Questionnaire: A standardized questionnaire will be administered to document symptoms like abdominal pain, bloating, flatulence, diarrhea, and nausea.
53 studies on the registry are indexed under Lactose Intolerance; 6 are open to participants now.
This study's planned enrollment of 70 is close to the median of 70 across 11 observational studies indexed under Lactose Intolerance.
Browse Lactose Intolerance studies →Assiut University is the lead sponsor of 5,078 studies on the registry; 2,178 are open to participants now.
Of its 14 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
The study population consists of adult patients aged 18-70 years diagnosed with chronic diarrhea lasting more than four weeks. Both male and female participants are included. Participants will be recruited from a single healthcare center. They will undergo comprehensive assessments, including demographic profiling, medical history review, and diagnostic testing for lactose intolerance using PCR. The diversity in age and gender ensures that potential correlations with these variables can be analyzed.
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.
All Patients with IBS diarrhea dominant type meet Rome criteria attending at Al-Rajhy University Hospital during 6 months (from march to September). A patient must have recurrent abdominal pain (at least 1 day per week in the last 3 months) associated with at least two of the following:
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.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The target population comprises individuals who meet the following inclusion criteria: Adults aged between 18 and 70 years. Diagnosed with IBS diarrhea dominant Both males and females are eligible for participation.
Prevalence data on lactose intolerance in patients with IBS diarrhea dominant.
The primary outcome is to determine the percentage of patients with chronic diarrhea who test positive for lactose intolerance using PCR testing.
Time frame: 1 year
No study locations are listed for this record.
Start is estimated for Jan 2026; primary completion for Jan 2027, 12 months later.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.
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