Trial Outcomes & Findings for The Value of Bio-electrical Impedance Analysis in Irritable Bowel Syndrome (NCT NCT05744258)

NCT ID: NCT05744258

Last Updated: 2025-05-29

Results Overview

Bio-electrical Impedance Analysis will be performed by trained personnel. BIA will be performed after fasting for at least 6 hours. Subjects should refrain from intensive physical activity the day be-fore the measurement. For women, measurements will be performed outside menstruating periods. Subjects will lay down on an examination couch with bare feet. Any jewelry will be removed. Reactance and resistance will be obtained. Phase angle will be calculated according to the formula: PhA (°) = (reactance/ resistance° x (180°/π).

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

40 participants

Primary outcome timeframe

The phase angle will be assessed through study completion, an average 6 months

Results posted on

2025-05-29

Participant Flow

Our first patient was recruited on the 22nd of August 2022. The last patient entered the study on 15JUN2023. Patients with IBS were recruited at the gastro-enterology department. Healthy volunteers were asked to participate in the hospital.

Signing of the ICF, screening and baseline visit were all done on the same day. One patient withdrew consent and was excluded.

Participant milestones

Participant milestones
Measure
IBS Patients
patients having irritable bowel disease
Healthy Volunteers
participants not having irritable bowel disease or bowel problems
Overall Study
STARTED
20
20
Overall Study
COMPLETED
16
20
Overall Study
NOT COMPLETED
4
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
IBS Patients
n=16 Participants
patients having irritable bowel disease
Healthy Volunteers
n=20 Participants
patients not having irritable bowel disease or any bowel problems
Total
n=36 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=16 Participants
0 Participants
n=20 Participants
0 Participants
n=36 Participants
Age, Categorical
Between 18 and 65 years
16 Participants
n=16 Participants
19 Participants
n=20 Participants
35 Participants
n=36 Participants
Age, Categorical
>=65 years
0 Participants
n=16 Participants
1 Participants
n=20 Participants
1 Participants
n=36 Participants
Sex: Female, Male
Female
14 Participants
n=16 Participants
9 Participants
n=20 Participants
23 Participants
n=36 Participants
Sex: Female, Male
Male
2 Participants
n=16 Participants
11 Participants
n=20 Participants
13 Participants
n=36 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
BMI
27.23 kg/m2
STANDARD_DEVIATION 6.46 • n=16 Participants
23.77 kg/m2
STANDARD_DEVIATION 3.76 • n=20 Participants
25.54 kg/m2
STANDARD_DEVIATION 5.11 • n=36 Participants

PRIMARY outcome

Timeframe: The phase angle will be assessed through study completion, an average 6 months

Bio-electrical Impedance Analysis will be performed by trained personnel. BIA will be performed after fasting for at least 6 hours. Subjects should refrain from intensive physical activity the day be-fore the measurement. For women, measurements will be performed outside menstruating periods. Subjects will lay down on an examination couch with bare feet. Any jewelry will be removed. Reactance and resistance will be obtained. Phase angle will be calculated according to the formula: PhA (°) = (reactance/ resistance° x (180°/π).

Outcome measures

Outcome measures
Measure
IBS Patients
n=16 Participants
patients suffering from irritable bowel syndrome
Healthy Volunteers
n=20 Participants
participants not suffering from irritable bowel syndrome
Comparison of the Phase Angle Between IBS Patients and Healthy Individuals
5.78 degrees
Standard Deviation 0.53
6.35 degrees
Standard Deviation 0.65

PRIMARY outcome

Timeframe: The body composition will be assessed through study completion, an average 6 months

percentage of total body water will be calculated using the measurements obtained during the BIA analysis.

Outcome measures

Outcome measures
Measure
IBS Patients
n=16 Participants
patients suffering from irritable bowel syndrome
Healthy Volunteers
n=20 Participants
participants not suffering from irritable bowel syndrome
Comparison of the Percentage of Total Body Water Between IBS Patients and Healthy Individuals
63.4 % of total body water
Standard Deviation 9.8
72.3 % of total body water
Standard Deviation 7.8

PRIMARY outcome

Timeframe: the muscle mass will be assessed through study completion, an average 6 months

The muscle mass will be calculated using the measurements obtained during the BIA analysis.

Outcome measures

Outcome measures
Measure
IBS Patients
n=16 Participants
patients suffering from irritable bowel syndrome
Healthy Volunteers
n=20 Participants
participants not suffering from irritable bowel syndrome
Comparison of the Muscle Mass Between IBS Patients and Healthy Individuals
42.9 % of muscle mass
Standard Deviation 6.39
52.6 % of muscle mass
Standard Deviation 5.44

PRIMARY outcome

Timeframe: the percentage of body fat will be assessed through study completion, an average 6 months

percentage of body fat will be calculated using the measurements obtained during the BIA analysis.

Outcome measures

Outcome measures
Measure
IBS Patients
n=16 Participants
patients suffering from irritable bowel syndrome
Healthy Volunteers
n=20 Participants
participants not suffering from irritable bowel syndrome
Comparison of the Percentage of Body Fat Between IBS Patients and Healthy Individuals
46.8 % of fat free mass
Standard Deviation 6.8
53.7 % of fat free mass
Standard Deviation 3.8

Adverse Events

IBS Patients

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Healthy Volunteers

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

prof. dr. Sebastien Kindt

UZ Brussel

Phone: +32 2 477 60 11

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place