study is conducted on healthy volunteers, no medical condition is investigated
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Healthy volunteers will be recruited from an existing mailing list. The volunteers will have to agree to participate in both studies as described below. In total 20 healthy volunteers (18-45 years) will be recruited Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 20 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: Subjects are excluded from participation if: • Their age is not between 18 and 45 years old. • They have relevant underlying disease (cardia, pulmonary, metabolic, kidney or liver disease, … ) • They have a history of gastric surgery, or recurrent or intermittent upper gastrointestinal symptoms (upper abdominal pain, nausea, vomiting, bothersome fullness or early satiation, heartburn, regurgitation,…) • They have a history of allergy to several types of drugs or food. • There is a possibility of becoming pregnant during the study period. • Body mass index > 25
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: given the role of PDE enzymes in the process of gastric relaxation on the one hand and posibble relation between impaired gastric accommodation and satiation on the other hand, we aimed to investigate the effect of sildenafil on the relation between gastric motility, gastric emptying and food intake during nutrient infusion.;Secondary Objective: none;Primary end point(s): Intragastric pressure profiles, magnitude of initial pressure drop and slope of recovery of intragastric pressures during continued infusion of a nutrient drink will be compared. The experiment is finished at maximum satiation. For gastric emptying, gastric emptying parameters after ingestion of a standard meal will be compared.;Timepoint(s) of evaluation of this end point: after ending of all experiments | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): none;Timepoint(s) of evaluation of this end point: none | — |
Countries
Belgium
Contacts
KULeuven