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Resting Energy Expenditure by Gastrointestinal Functional Status

NCT07714499 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 92

Last updated 2026-07-20

No results posted yet for this study

Summary

This prospective, comparative interventional study will evaluate resting energy expenditure in adults with different gastrointestinal functional status. A total of 92 participants aged 18 to 65 years will be included: 30 healthy adults with normal gastrointestinal function and 62 patients with clinically confirmed intestinal failure. The intestinal failure group will include patients with short bowel syndrome and patients with other causes of intestinal failure.

Participants will be assigned to one of two protocol-defined groups according to their gastrointestinal functional status. Each participant will attend one study visit lasting approximately 90 to 120 minutes. The research procedures will include measurement of resting energy expenditure by indirect calorimetry after an overnight fast, assessment of body composition by dual-energy X-ray absorptiometry and bioelectrical impedance analysis, and blood sampling for inflammatory markers.

The primary objective is to compare resting energy expenditure between healthy participants and patients with intestinal failure and to determine whether resting energy expenditure differs according to the underlying cause of intestinal failure. Secondary objectives are to evaluate the associations between resting energy expenditure, lean body mass, fat mass, phase angle, and inflammatory markers. The results may contribute to more individualized nutritional management of patients with intestinal failure.

Conditions

  • Intestinal Failure
  • Short Bowel Syndrome

Interventions

DIAGNOSTIC_TEST

Protocol-Defined Metabolic and Body Composition Assessment

Participants undergo a standardized research assessment during one study visit. Resting energy expenditure is measured by indirect calorimetry after fasting. Body composition is assessed by dual-energy X-ray absorptiometry and bioelectrical impedance analysis. Blood samples are collected for the assessment of inflammatory markers. These assessments are performed outside routine clinical care according to the study protocol.

Sponsors & Collaborators

  • Institute of Oncology Ljubljana

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-10-01
Primary Completion
2026-10-01
Completion
2026-10-01

Countries

  • Slovenia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07714499 on ClinicalTrials.gov