Clinical trials: Challenge Test
Drug Hypersensitivity, Penicillin Allergy
Drug Challenges Without Prior Skin Testing
The investigators are conducting a prospective study to determine the safety and outcomes of placebo-controlled graded drug challenges without prior skin testing in patients with a low-risk history of antibiotic hypersensitivity…
- Conditions
- Drug Hypersensitivity, Penicillin Allergy, Antibiotic Allergy
- Trial name
- NCT03158831
- Where
- United States
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- Montefiore Medical Center
Cough Reflex Sensitivity
Evaluating the Feasibility and Reliability of Using Handheld Nebulizers to Conduct Cough Sensitivity Testing With Citric Acid
Objective cough reflex sensitivity testing is typically restricted to specialized research laboratories due to reliance on expensive dosimeter-controlled aerosol delivery systems.
- Trial name
- NCT07531901
- Testing
- Cosmed QuarkSpiro Dosimeter-Controlled Nebulizer, DeVilbiss 45 Handheld Nebulizer
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Montana
Irritable Bowel Syndrome
Effects of Activia in IBS
The purpose of this study is to investigate the association between gut microbiota, immunology and typical pathophysiological factors in patients with IBS (all subtypes) AND to assess the effect of Activia consumption on GI…
- Trial name
- MOSAIC (NCT01252550)
- Testing
- Activia® (125g/pot), Acidified non-fermented dairy product
- Where
- 3 sites in Sweden
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sahlgrenska University Hospital
Mouse Allergies, Mouse Sensitization
A Comparison of Skin Prick Tests, Clinical Symptoms, and Nasal Challenge Using a New Mouse Extract
The purpose of this study is to test a new mouse skin test extract on people who work with mice in a lab or through animal care.
- Trial name
- NCT01063985
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Food Allergy
Use of Hypoallergenic (H.A.) Cereals in Children With Diagnosed Allergy to Wheat
The investigators plan to launch a Specific Oral Tolerance Induction (SOTI) pilot study in order to assess the efficacy and the safety of hypoallergenic (H.A.) wheat cereals, for children with allergy to wheat.
- Trial name
- NCT01332084
- Testing
- HA wheat cereals
- Where
- 2 sites in Switzerland
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Société des Produits Nestlé (SPN)
Asthma, Cough
Mannitol-Induced Cough Challenge in Healthy Controls and Subjects With Mild Allergic Asthma
The study aim is to investigate if changes in osmolarity using mannitol challenge can evoke coughing reproducibly in mild allergic asthmatics compared with healthy controls and if salbutamol can affect this.
- Trial name
- MICC (NCT03620422)
- Testing
- Mannitol, Salbutamol 5mg/mL, Sodium Chloride 0.9% Inhl 3Ml
- Where
- Canada
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- McMaster University
Food Allergy Suspected
Comparison of Skin Prick Testing, Extract-specific IgE Antibody Testing and Component Resolved Diagnosis in Diagnosing of Legume Allergy
The study is aimed at improving the diagnosis of food allergy, specifically allergy to commonly consumed legumes such as peas, lentils, chickpeas or green beans.
- Trial name
- CRD (NCT06923878)
- Where
- Czechia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Hospital Pilsen
Asthma, Diabetes Mellitus
A Study Designed to Determine if the Pharmacokinetic Disposition of Inhaled Insulin Exposure is the Same for Asthmatics and Non-asthmatics
This study will compare the rate and extent of absorption of TI Inhalation Powder in subjects with asthma and subjects with normal lung function. 24 eligible subjects will be enrolled into the treatment phase of the trial.
- Trial name
- NCT00673621
- Testing
- Technosphere Insulin Inhalation Powder, Salbutamol (Albuterol), Methacholine chloride
- Where
- 2 sites in United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Mannkind Corporation
Healthy, Non-smokers
A Pilot Study to Test Activity of Antimalarial Drugs Against an Induced Malaria Infection in Healthy Volunteers
This is a pilot study of a protocol for inducing a falciparum malaria infection in healthy volunteers in order to test the activity of novel agents being developed as drugs for the treatment of uncomplicated malaria.
- Trial name
- NCT01055002
- Testing
- Blood stage parasite (BSP) inoculum
- Where
- Australia
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Medicines for Malaria Venture
Optimization of Laboratory Procedures
Optimization of the ex Vivo Challenge
The overall purpose of this research study is to collect vaginal and cervical biopsies from healthy HIV negative participants. These samples will enable investigators to optimize laboratory methods and explore implementation…
- Trial name
- NCT02134535
- Where
- United States
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Healthy Subjects
Nutrigenomics Investigation of the Body's Metabolic Response to 2 Different Meal Challenges
The purpose of this study is to investigate the biological response to a metabolic stress, given in the form of a high carbohydrate or fat meal in normal weight, overweight and obese individuals and to further explore these…
- Trial name
- MECHE (NCT01172951)
- Testing
- Oral glucose tolerance test, Oral lipid tolerance test
- Where
- 2 sites in Ireland
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University College Dublin
Endometrium Cancer
Risk Evaluation and Screening to Tailor Prevention and Reduce the Incidence of Endometrial Cancer
This study proposes to assess feasibility and acceptability of screening and risk reducing interventions in individuals at increased for endometrial cancer (EC).
- Trial name
- RESToRE (NCT05651282)
- Testing
- Provera
- Where
- Canada
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Cardiovascular Diseases, Hyperlipidemias
The Mixed Meal Challenge Study
The purpose of this study is to assess sample collection conditions for various dietary challenges (fat, sugar, and mixed) and determine the optimal fasting and post-meal sample collection time points for future studies on a…
- Trial name
- NCT05087823
- Testing
- Lipid Challenge, Glucose Challenge, Mixed Meal Challenge
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Emory University
Hyperreactive Airway Disease
Methacholine Challenge Test (MCT) in Healthy Adults
Knowledge of Methacholine Challenge Test (MCT) and impedance Oscillometry (IOS) is limited. Only three studies have included adult patients, and none of these with healthy controls.
- Trial name
- NCT06509659
- Testing
- Methacholine Challenge Test
- Where
- Denmark
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Allergi- og Lungeklinikken, Elsinore
Healthy, Metabolism
Improving Resilience With Whole Grain Wheat
This study investigates the health benefits of whole grain wheat on cardiovascular/ cardio-metabolic health, including glucose metabolism, by means of applying a mixed meal challenge.
- Trial name
- Graandioos (NCT02385149)
- Testing
- whole grain wheat, refined wheat
- Where
- Netherlands
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Wageningen University
HIV Infections, Mental Health
Testing the WeCare Intervention to Address Mental Health and Medication Adherence Challenges Among MSM in South Africa
The goal of this clinical trial is to learn if the WeCare intervention-an adapted Friendship Bench program that integrates problem-solving therapy, minority-stress-informed content, and explicit PrEP/ART adherence skills-improves…
- Trial name
- NCT07226323
- Testing
- WeCare, Standard of Care
- Where
- South Africa
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Emory University
Dietary Exposure
Investigation on the Effect of Carnitine Supplement on Gut Microbiota and TMAO Production Capacity
In this project, the investigators aim to explore the impact of dietary L-carnitine supplementation on the TMAO production capacity of gut microbiota.
- Trial name
- NCT02838732
- Testing
- L-carnitine supplementation (500 mg per tablet per day, purchased from GNC company)
- Where
- Taiwan
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Healthy, Chronic Kidney Diseases
Exploring the Mechanisms of Indoxyl Sulfate Production by Oral Tryptophan Challenge Test
Cardiovascular disease (CVD) is prevalent in patients with chronic kidney disease (CKD) and is associated with extremely poor prognosis.
- Trial name
- NCT04117191
- Testing
- Doctor's Best L-Tryptophan
- Where
- Taiwan
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
Cardiometabolic Risk, Abdominal Obesity
Synergistic Innovative Functional Food Concepts to Neutralize Inflammation for Cardiometabolic Risk Prevention
The aim of the study is to evaluate the synergistic effects of daily consumption of food products fortified with bioactive components (fibres, polyphenols, omega-3, Slow Digestible Starch) for 9 weeks, compared to the daily…
- Trial name
- SINFONI (NCT04190706)
- Testing
- bioactive components fortified food products intake (biscuits and cookies), control food products intake (biscuits and cookies)
- Where
- France
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Allergy
New Validated Recipes for Double-blind Placebo-controlled Low Dose Food Challenges
This study aimed to validate new recipes for cow's milk, hen's egg, soy, cod and wheat, to be used in blinded low-dose food challenges.
- Trial name
- NCT01633840
- Testing
- Elemental E028 with added food allergens, Elemental E028
- Where
- Sweden
- Volunteers
- 275 people, healthy volunteers welcome
- Sponsor
- Christina West