Clinical trials: Prevalence
Fecal Incontinence
Prevalence and Treatment of Anal Incontinence (AI) in Primiparous Women
Traumatic tears of the sphincter ani muscles after delivery may result in symptomatic urinary and anal incontinence, particularly in primiparas.
- Trial name
- NCT00970320
- Testing
- Pelvic floor muscle training
- Where
- Norway
- Volunteers
- 1,718 people, healthy volunteers welcome
- Sponsor
- Ostfold Hospital Trust
Congenital Sucrase-isomaltase Deficiency (CSID)
Congenital Sucrase-Isomaltase Deficiency (CSID) Genetic Prevalence Study (GPS)
Congenital sucrose-isomaltase deficiency (CSID) is a rare, genetic disease in which mutations in the sucrose-isomaltase (SI) gene cause digestion problems of sucrose resulting in diarrhea and abdominal pain.
- Trial name
- CSID GPS (NCT01914003)
- Where
- 19 sites in United States
- Volunteers
- 53 people
- Sponsor
- QOL Medical, LLC
Decision Making
PROJECT 2 EXAMPLE: Feedback X Prevalence Using Dermatology Stimuli
Imagine that a dermatologist spends the morning seeing patients who have been referred for suspicion of skin cancer. Many of them do, in fact, have skin lesions that require treatment.
- Trial name
- NCT05244122
- Testing
- Feedback, Prevalence
- Where
- United States
- Volunteers
- 1,121 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Aneuploidy
National Prevalence and Impact of Noninvasive Prenatal Testing
Information on pregnant women undergoing non-invasive prenatal testing (NIPT) at one of the Obstetrix Medical Groups Outpatient Centers between January 2012 and June 2014 will be retrospectively gathered and an analysis of the…
- Trial name
- NCT02284399
- Testing
- non-invasive prenatal testing
- Where
- 7 sites in United States
- Volunteers
- 4,488 people, healthy volunteers welcome
- Sponsor
- Obstetrix Medical Group
Adrenal Insufficiency, Critical Illness
Pilot Study Assessing Oxidative Stress in Children
Role fo oxidative stress in adrenal insufficiency has not been studied. The degree of oxidative stress and it's role in pediatric critical illness is unknown.
- Trial name
- OxStress (NCT01052207)
- Where
- United States
- Volunteers
- 102 people
- Sponsor
- Emory University
Transthyretin Amyloidosis Cardiomyopathy (ATTR-CM)
Prevalence and Characteristics of Transthyretin Amyloidosis in Patients With Left Ventricular Hypertrophy of Unknown Etiology
The main purpose of this study is to determine the prevalence of ATTR Cardiomyopathy among patients admitted due to Left Ventricular Hypertrophy (LVH) >15mm of unknown etiology by using a 99mTc-tracer scintigraphy based protocol
- Trial name
- TTRACK (NCT03842163)
- Testing
- Diagnosis of TTR amyloidosis cardiomyopathy
- Where
- 18 sites in Australia, Austria and 8 more
- Volunteers
- 812 people
- Sponsor
- Pfizer
Pertussis
Pertussis Infection in Adolescents and Adults With Prolonged Cough
This study aims to determine the burden of pertussis infection among adolescents and adults with prolonged cough in four Asian countries, namely Malaysia, Philippines, Taiwan and Thailand.
- Trial name
- NCT01597687
- Testing
- Blood collection, Data collection
- Where
- 7 sites in Malaysia, Taiwan and 1 more
- Volunteers
- 337 people
- Sponsor
- GlaxoSmithKline
COVID-19
SARS-CoV-2/COVID-19 Prevalence Study
The COVID-19 Prevention Network (CoVPN) is doing a study to estimate the number of people who have or have had the SARS-CoV-2 virus in different communities in the United States.
- Trial name
- NCT04658121
- Where
- 15 sites in United States, Puerto Rico
- Volunteers
- 26,211 people, healthy volunteers welcome
- Sponsor
- COVID-19 Prevention Network
Sleep Apnea, Obstructive
Prevalence of Sleep Apnea in Patients Presenting for Hip or Knee Replacement Surgery
The study hypothesis is that the prevalence of obstructive sleep apnea in patients presenting for total knee or total hip arthroplasty is higher than generally suspected.
- Trial name
- NCT00874822
- Where
- United States
- Volunteers
- 216 people
- Sponsor
- University of Nebraska
Second Mesiobuccal Canal, Maxillary First and Second Molars
Prevalence of Second Mesiobuccal Canal of Maxillary First and Second Molars Among Egyptian Population
a cross-sectional study to estimate the prevalence of a second mesiobuccal canal of maxillary first and second molars in Egyptian population using cone beam computed tomography through retrospective data analysis
- Trial name
- CBCT (NCT03225573)
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Cairo University
Thalassemia, Non-transfusional-dependent Thalassemia (NTDT), Myeloplastic Dysplasia (MDS), Other Anemia
An Epidemiological Study to Assess Iron Overload Using MRI in Patients With Transfusional Siderosis (TIMES Study)
Iron, one of the most common elements in nature and the most abundant transition metal in the body, is readily capable of accepting and donating electrons.
- Trial name
- NCT01736540
- Testing
- MRI scan
- Where
- 13 sites in Australia
- Volunteers
- 243 people
- Sponsor
- Novartis Pharmaceuticals
Non-small Cell Lung Cancer
Retrospective Epidemiology Study Of ALK Rearrangement In Non-Small Cell Lung Cancer Patients In The Middle East & North Africa
Thet study aims to estimate the prevalence of ALK rearrangement in the Middle East North Africa population by using the Ventana ALK-IHC method for ALK protein detection in retrospective NSCLC clinical samples, \& to evaluate the…
- Trial name
- ALK NSCLC MENA (NCT02304406)
- Where
- 11 sites in Egypt, Lebanon and 3 more
- Volunteers
- 449 people
- Sponsor
- Pfizer
Streptococcus Pneumoniae Infections
Prevalence of Nasopharyngeal Carriage of Streptococcus Pneumoniae in Healthy Children of 12-18 Months in 6 Cities, China
This study is to observe the carriage rate of Streptococcus pneumoniae (S.p.), Haemophilus influenzae Type B (Hib) and Moraxella catarrhalis (M.Cat.) in healthy Chinese children aged 12-18 months in order to estimate the…
- Trial name
- NCT00952367
- Testing
- Nasopharyngeal swab
- Where
- 6 sites in China
- Volunteers
- 3,641 people, healthy volunteers welcome
- Sponsor
- Wyeth is now a wholly owned subsidiary of Pfizer
Diabetes Mellitus, Diabetes Complications
Prevalence of Inpatient Hyperglycemia: Risks, Complications and Outcomes
This protocol will determine the prevalence of hyperglycemia and diabetes in the elective orthopedic population at the University of Wisconsin. It will also determine if there is a difference in outcomes.
- Trial name
- NCT00585494
- Where
- United States
- Volunteers
- 302 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Acute Injury in Mountain Biking
Prevalence of Acute Injuries in Amateur and Elite Mountain Bikers
The investigators intented to assess the prevalence of acute injuries in amateur and elite mountain bikers.
- Trial name
- NCT03690219
- Testing
- no intervention
- Where
- Switzerland
- Volunteers
- 99 people
- Sponsor
- University of Applied Sciences and Arts of Southern Switzerland
Femoroacetabular Hip Impingement Syndrome
Prevalence of Femoroacetabular Impingement in Asymptomatic Patients
Femoroacetabular hip impingement syndrome is a newly recognized cause of early arthritis of the hip. In this condition a variation in the shape of the upper thigh bone causes it to repeatedly come in contact with the hip socket…
- Trial name
- NCT00606047
- Testing
- Magnetic resonance imaging (MRI)
- Where
- Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Ottawa Hospital Research Institute
HIV Infections, Tuberculosis
Prevalence of HIV and Tuberculosis in Masiphumelele Township, Cape Town, South Africa
The purpose of this study is to estimate the amount of HIV and tuberculosis (TB) infection in individuals 15 years and older in the Masiphumelele township of Cape Town, South Africa.
- Trial name
- NCT00096681
- Volunteers
- 762 people, healthy volunteers welcome
- Sponsor
- CIPRA SA
Vitamin D Deficiency, Pregnancy
Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina
Science News (October 2004) called vitamin D deficiency a "silent epidemic" in America, with no group unaffected. Using new guidelines of optimal vitamin D levels, more than 90% of African American women now suffer from vitamin D…
- Trial name
- NCT00412087
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 564 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Hepatitis B
Prevalence of HBV in Pregnant Women Attending Antenatal Care in Tanzania
Chronic Hepatitis B virus (HBV) infection is a neglected disease with devastating consequences, particularly in countries with limited resources for the health sector.
- Trial name
- HBVPMTCT (NCT04325542)
- Testing
- HBSAg (sure screen test)
- Where
- Tanzania
- Volunteers
- 743 people
- Sponsor
- Medical Mission Institute, Germany
Gaucher Disease
Auto-antibodies Prevalence and CD1 Role in Gaucher Disease
Hypergammaglobulinaemia is frequently observed in type 1 Gaucher disease (GD1), being either polyclonal or monoclonal gammopathies. Polyclonal hypergammaglobulinemia may be related to the presence of autoantibodies.
- Trial name
- NCT02650219
- Testing
- genetic analyses
- Where
- 11 sites in France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hospital St. Joseph, Marseille, France