Clinical trials: Prevalence
Transthyretin Amyloid Cardiomyopathy, Heart Failure With Preserved Ejection Fraction
Global Prevalence of ATTR-CM in Participants With HFpEF
This study is a global, multi-center study designed to estimate the global prevalence of transthyretin amyloid cardiomyopathy (ATTR-CM) within a clinically at risk population [participants with heart failure with preserved…
- Trial name
- NCT04424914
- Testing
- Scintigraphy
- Where
- 51 sites in United States, Canada and 6 more
- Volunteers
- 347 people
- Sponsor
- Pfizer
ADHD, PMS
Prevalence of Lidocaine Ineffectiveness in Adults With and Without ADHD
This work will assess the prevalence in the general population of the ineffectiveness of the anesthetic Lidocaine compared to males with ADHD and females with ADHD with or without PMS.
- Trial name
- NCT03676725
- Testing
- Lidocaine gel
- Where
- 2 sites in United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- PhenoSolve, LLC
Malaria, Malaria Vaccines
Epidemiology Study of Malaria Transmission Intensity in Sub-Saharan Africa
This epidemiology study was conducted in parallel with the EPI-MAL-002 (NCT02374450) and EPI-MAL-003 (NCT03855995) studies, enrolling participants from the same health and demographic surveillance system (HDSS) (or equivalent…
- Trial name
- NCT02251704
- Testing
- Assessment of body temperature, Blood sampling
- Where
- 12 sites in Burkina Faso, Ghana and 4 more
- Volunteers
- 54,115 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Dry Eye Syndromes
A Study to Determine the Prevalence of Inflammatory Dry Eye Disease in Patients Prior to Cataract Removal
This study will evaluate the prevalence of inflammatory dry eye disease in patients prior to cataract surgery. No treatment is administered in this study.
- Trial name
- REVEAL (NCT01882413)
- Testing
- No intervention
- Where
- 6 sites in Canada
- Volunteers
- 204 people
- Sponsor
- Allergan
Cerebrotendinous Xanthomatosis (CTX)
Cerebrotendinous Xanthomatosis (CTX) Prevalence Study
Iiopathic bilateral cataracts occur in many children with Cerebrotendinous Xanthomatosis (CTX) so the opportunity to use contact with health care providers in connection with pediatric cataract evaluation and treatment is a…
- Trial name
- NCT02638220
- Where
- 44 sites in United States
- Volunteers
- 442 people
- Sponsor
- Travere Therapeutics, Inc.
Psoriasis, Psoriatic Arthritis
Prevalence and Incidence of Articular Symptoms and Signs Related to Psoriatic Arthritis in Patients With Psoriasis Severe or Moderate With Adalimumab Treatment
Psoriatic Arthritis (PsA) is a comorbidity that affects a significant proportion of participants with moderate or severe psoriasis.
- Trial name
- TOGETHER (NCT01316224)
- Where
- 15 sites in Colombia
- Volunteers
- 52 people
- Sponsor
- AbbVie (prior sponsor, Abbott)
Erectile Dysfunction, Cardiovascular Diseases
Identification of Underlying Conditions in Men Prescribed a PDE5 Inhibitor
Erectile dysfunction (ED) has been identified as an independent risk factor for existing cardiovascular disease, preceding a major cardiovascular event by an average of about 5 years.
- Conditions
- Erectile Dysfunction, Cardiovascular Diseases, Male Urogenital Diseases
- Trial name
- NCT01150903
- Testing
- no intervention
- Volunteers
- 98,832 people
- Sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Infusion Site Injury
Study to Estimate the Point Prevalence of Peripheral Intravenous Catheter-related Complications in Brazil
A multi-center, national prevalence study where: (1) baseline SPIVC therapy complications of hospitalized adult patients that meet the inclusion/exclusion criteria of the study and (2) the compliance of clinicians to the…
- Trial name
- PIVS (NCT03719287)
- Where
- 3 sites in Brazil
- Volunteers
- 295 people
- Sponsor
- Solventum US LLC
Psoriasis, Psoriatic Arthritis
Prevalence of Psoriatic Arthritis in Adults With Psoriasis: An Estimate From Dermatology Practice
This is a phase 4, multicenter, randomized, non-therapeutic interventional trial in subjects with psoriasis looking for the prevalence of psoriatic arthritis.
- Trial name
- PREPARE (NCT01147874)
- Testing
- lab draws and imaging
- Where
- 45 sites in United States, Belgium and 5 more
- Volunteers
- 1,013 people
- Sponsor
- Pfizer
Congestive Heart Failure, Left Ventricular Systolic Dysfunction
Sleep-Disordered Breathing in Heart Failure - The SchlaHF-Registry
Objective target of the registry is to investigate the prevalence of SDB as well as the clinical characteristics of patients with and without SDB as well as the predominant type of sdb.
- Trial name
- SchlaHF (NCT01500759)
- Where
- 199 sites in Australia, Germany
- Volunteers
- 6,876 people
- Sponsor
- ResMed
Surgical Site Infection
Irrisept Versus Standard of Care in the Prevention of Surgical Site Infections
The purpose of this study was to compare the rate of surgical site infections in patients randomized to Irrisept versus SoC, who had an open abdominal laparotomy for abdominal trauma or acute surgical abdomen.
- Trial name
- NCT02255487
- Testing
- IrriSept System, No Intervention - Standard of Care (SoC) only
- Where
- 17 sites in United States
- Volunteers
- 627 people
- Sponsor
- Irrimax Corporation
ADHD
Observational Study to Assess the Frequency of Lidocaine Ineffectiveness in Hard-to-treat ADHD
This work will assess the prevalence in hard-to-treat ADHD of the ineffectiveness of the anesthetic Lidocaine.
- Trial name
- NCT04167189
- Testing
- Lidocaine gel
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- PhenoSolve, LLC
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
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
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
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
Chronic Obstructive Pulmonary Disease, Noninvasive Ventilation
Determination of the Prevalence and Severity of Expiratory Flow Limitation in Chronic Obstructive Pulmonary Disease Patients
Expiratory Flow Limitation (EFL) occurs when the airways become compressed, which usually results when the pressure outside the airway exceeds the pressure inside the airway.
- Trial name
- NCT03851510
- Testing
- Vector ventilator, Resmon Pro
- Where
- United States
- Volunteers
- 57 people
- Sponsor
- Philips Respironics