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NCT ID: NCT06091852 Completed - Clinical trials for Protein Malabsorption

The Incorporation of Dietary Protein-Derived Amino Acids in Duodenal Epithelium

GutFeeding
Start date: July 24, 2023
Phase: N/A
Study type: Interventional

Rationale: Aging is accompanied by a blunted muscle protein synthetic response to protein ingestion.This anabolic resistance may be related to decreased postprandial amino acid release in the circulation, due to greater amino acid extraction by splanchnic tissues in older individuals. It has been suggested that extracted amino acids are utilized by intestinal epithelial cells for cell proliferation, generating new cells to maintain healthy mucosa. So far, there is no evidence that dietary protein-derived amino acids are taken up and incorporated in intestinal mucosal protein in vivo in humans. Furthermore, there is no evidence that this process is impacted by age. Objective: To assess the postprandial incorporation of dietary protein-derived amino acids in intestinal mucosal protein in healthy young and older males. Study design: Cross-sectional, non-therapeutic intervention study design Study population: 5 healthy, non-obese (BMI 18.5-30kg/m2) young adult males (age: 18-35y inclusive) and 5 community dwelling older males (age: 67+y). Intervention: Continuous intravenous stable isotope amino acid tracer infusion will be applied, in combination with oral ingestion of 20g intrinsically labelled milk protein, with plasma, muscle and duodenal mucosa biopsy samples collected at different time points throughout the experimental test day. Main study parameters/endpoints: The primary study outcome is the postprandial (0-5h) incorporation of dietary protein-derived amino acids in duodenal mucosal protein following the ingestion of 20g intrinsically labelled milk protein. Secondary study parameters include postprandial plasma availability of dietary protein-derived amino acids and fractional duodenal mucosal protein synthetic rate.

NCT ID: NCT06089265 Completed - HFI Clinical Trials

Ketohexokinase Inhibition in Hereditary Fructose Intolerance

KHKi in HFI
Start date: June 15, 2023
Phase: Phase 2
Study type: Interventional

Hereditary fructose intolerance (HFI) is a rare inborn error of metabolism. Patients with HFI develop acute abdominal pain, nausea, vomiting, hypoglycemia and proximal tubular dysfunction upon consumption of a fructose containing food product. In rare cases, (prolonged) fructose consumption can even lead to liver and kidney failure. Patients with HFI are therefore treated with a lifelong fructose-restricted diet. Animal studies have shown that the clinical manifestations of HFI are abrogated upon inhibition of ketohexokinase (KHK), the enzyme that catalyses the first step in fructose metabolism. Recently, PF-06835919, a KHK inhibitor (KHKi), was developed as a new treatment for non-alcoholic fatty liver disease. The compound was well tolerated in several phase II clinical trials. It is hypothesized that PF-06835919 is also effective in patients with HFI.

NCT ID: NCT06079099 Completed - Emergencies Clinical Trials

Time Within the Acute Care Chain: How Long Have Medical Emergency Department Patients Spent

TACC
Start date: April 20, 2022
Phase:
Study type: Observational

This study is part of a research domain focusing on the acute care chain, which includes the patient journey from symptoms to treatment on the Emergency Medical Department (ED). Within hospitals there is much attention for triage and the amount of time patients spent within the chain, especially for the ED. However, there is less information available on what occurs before patients visit the ED. Gaining more insight in the patient journey in the acute care chain as a whole, might provide important information to further optimize care at the ED. In the current study, 750 patients will be included at multiple ED's in the Netherlands. The primary goal is to gain insight in the patient journey of adult ED patients.

NCT ID: NCT06076616 Completed - Breast Cancer Clinical Trials

Prehabilitation and Rehabilitation in Breast Cancer Surgery Patients - a Pilot Study

BREHAB
Start date: December 1, 2022
Phase: N/A
Study type: Interventional

Prehabilitation and rehabilitation through personalized lifestyle counseling in patients with breast cancer.

NCT ID: NCT06072950 Completed - Pain Clinical Trials

Opioid Use and Predicting Factors at the Emergency Department

VRxOPUS-1
Start date: February 13, 2023
Phase:
Study type: Observational

Background: Increasing opioid misuse is a worldwide problem. About 10% of opioid misusers are primarily exposed to opioids at the Emergency Department (ED). This study was conducted to determine the feasibility for a clinical trial investigating the effect of Virtual Reality therapy on opioid consumption at the ED. Methods: Adult patients were included when primarily seen by the Emergency Physician and presenting with a NRS pain score ≥4. Main objective was to identify the target population and evaluate outcome measures to sustain a trial incorporating the Oral Morphine Equivalent (OME) at the ED as the primary endpoint. Primary outcome was mean OME administered at the ED. Secondary outcomes included NRS pain scores, main symptoms and type of analgesics administered at the ED.

NCT ID: NCT06064266 Completed - Small Intestine Clinical Trials

Healthy Fat, Happy Microbiome (TAPIR), Proof-of-Concept Study

TAPIR
Start date: October 20, 2023
Phase: N/A
Study type: Interventional

Rationale: The role of dietary lipids in host-microbiome research has for a long time been overlooked; as high lipid intake has been recently indicated to have the most pronounced effect on the small intestinal microbiome, fecal-oriented studies might have missed their important, local effect. Indications for an interaction between dietary lipids and the small intestinal microbiome are mainly based on animal studies, but human data are largely missing. This study therefore aims at exploring this principal in vivo in healthy individuals. Primary objective: To assess the effect of dietary lipids on the small intestinal microbiome in humans (proof-of-concept), the primary objective of our study is to measure production of microbiota-derived lipid metabolites in the human small intestine after consumption of a plant-based high-fat shake in healthy pre-conditioned subjects. Secondary objectives: To explore future perspectives for dietary lipid - small intestinal microbiome interactive research, the secondary objectives of our study are 1. To compare the levels of microbiota-derived lipid metabolites in aspirate samples obtained through a naso-intestinal catheter (golden standard; invasive sampling method) and an aspiration capsule (less invasive, innovative sampling method), and in blood (local versus systemic effect) and feces (small intestinal versus fecal effect; less invasive sampling); 2. To investigate the acute effect of a high-fat shake on the composition and transcriptome activity of the small intestine microbiota in aspirate samples of healthy pre-conditioned subjects; 2a) To compare the acute effects on the small intestine microbiota composition in aspirate samples obtained through a naso-intestinal catheter versus those obtained via an aspiration capsule; 3. To study and compare the effect of a 8-day plant-based mild ketogenic preconditioning diet on the composition of the small intestine microbiota (aspiration capsule) and the fecal microbiota. Study design: Proof-of-concept intervention study Study population: 16 healthy adults, BMI between 18.5-30 kg/m2. Intervention: 8-days preconditioning mild ketogenic controlled diet followed by a high fat shake challenge with a naso-intestinal catheter. Main study parameters/endpoints: The primary study parameters are the microbial-derived metabolites from linoleic acid and plant sterols after consumption of the high fat shake. Secondary study parameters include microbiota composition and transcriptome activity. Other parameters include inflammatory markers and ex-vivo analyses.

NCT ID: NCT06049537 Completed - Clinical trials for Colonization, Asymptomatic

Studying Respiratory Infections and Colonisation in Children Using Daily Minimally-invasive Nasal Sampling

SAMSAM
Start date: January 21, 2022
Phase:
Study type: Observational

Rationale: Respiratory tract infections (RTI) are a major cause of morbidity in young children in high- income countries and the major cause of mortality in developing countries. Causative bacteria and viruses are regular residents of the nasopharynx of asymptomatic individuals (colonization) and live there together with other presumed harmless commensals, without causing disease. These non-pathological infections/colonization episodes are important for transmission, intermediate step to disease and boost immune responses. The investigators recently validated the use of minimally-invasive nasal sampling methods that can be done at home for the study of host and microbial parameters in adults and children. In this study the investigators will focus on the daily microbial and immunological composition of the nasopharynx during health in relation to symptoms. Primary objective: Associate acquisition of pneumococcal colonisation with levels of pre-existing polysaccharide specific memory B cells. Secondary objectives include: Validate the use of synthetic absorptive matrices (SAM) for detection of respiratory pathogens versus nasopharyngeal swabs (NPS) and saliva; Assess dynamics of URT infection/colonisation and examine its relationship with symptoms, host responses and microbiota; Measure transmission between children and parents and immune responses in parents. Study design: Prospective community-based cohort study.total of 45 children, aged 1-5 years old attending daycare or (pre-)school, will be included, including a pilot of 10 children to assess tolerability. If there are insufficient pneumococcal acquisitions in the study to assess the primary outcome, additional children can be recruited in groups of 3 or 4 children (up to 10). For a subset of participating children, both parents will be asked to self-collect daily saliva during the study. Primary study parameters: Frequency of systemic polysaccharide specific B cells in children that become colonised during the study versus children that do not become colonised Secondary study parameters: Dynamics of respiratory bacteria and viruses during URT infection/colonisation. Presence and load for bacteria and viruses in children in SAM versus saliva and NPS. Local microbiota and immune profiles and association with infection/colonisation and symptomology. For a subset of parents, daily presence and load of bacteria and viruses as well as host immune factors measured in saliva.

NCT ID: NCT06045000 Completed - Healthy Volunteers Clinical Trials

Mass Balance and Pharmacokinetics (PK) of [14C]-DC-806 in Healthy Male Participants

Start date: September 14, 2023
Phase: Phase 1
Study type: Interventional

The primary objective of this study is to investigate the rate and routes of excretion, including the mass balance, after single oral dose administration of DC-806 containing 3.7 MBq (100 μCi) of [14C]-DC-806 in urine and feces.

NCT ID: NCT06039137 Completed - Solid Tumor Clinical Trials

The Effect of Switching the H1-antagonist Clemastine to Cetirizine in Premedication Regimens During Paclitaxel Treatment

H1-Switch
Start date: June 1, 2022
Phase:
Study type: Observational

In this study the effect of substituting clemastine IV to cetirizine PO on the occurence of hypersensitivity reactions during paclitaxel chemotherapy will be investigated.

NCT ID: NCT06038188 Completed - Clinical trials for Coronary Artery Disease

Remote 3-week Booster Intervention to Reduce Sedentary Time in Patients With Coronary Artey Disease

BOOSTSITLESS
Start date: August 30, 2023
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to learn about the effect of a booster program aiming to lower daily sitting time (SIT LESS Booster program) compared to usual care in patient with coronary heart problems. The main question it aims to answer is: What is the effect of the SIT LESS Booster on sedentary time and physical activity levels in patient with coronary artery disease who participated in cardiac rehabilitation. Participants will be randomized into 2 groups: 1. Control group who receives usual care; 2. SIT LESS Booster group who receives usual care + a remote 3-week SIT LESS Booster program. Objectively measured changes in daily sitting time from pre- to post SIT LESS Booster will be compared between groups to see if participants in the SIT LESS Booster group are able to reduce daily sedentary time more compared to participants in the control group.