Clinical trials: Doppler
Sickle Cell Disease
Study to Evaluate the Effect of GBT440 on TCD in Pediatrics With Sickle Cell Disease
This study is a Phase 3, randomized, double-blind, placebo-controlled study of voxelotor in pediatric participants, aged ≥ 2 to < 15 years old, with Sickle Cell Disease.
- Trial name
- HOPE Kids 2 (NCT04218084)
- Testing
- Voxelotor
- Where
- 35 sites in United States, Egypt and 7 more
- Volunteers
- 236 people
- Sponsor
- Pfizer
Stillbirth, Neonatal Death
Intermittent Auscultation Using Handheld Doppler: a Randomized Controlled Trial Comparing Perinatal Outcomes in Uganda
A novel handheld Doppler has been developed which is rugged and is powered only by a hand crank. This study aims to test the use of this Doppler versus the Pinard horn to monitor the fetal heart rate in labour in a hospital…
- Trial name
- NCT02273037
- Testing
- Fetal heart rate Doppler, Partograph
- Where
- 2 sites in Canada, Uganda
- Volunteers
- 1,987 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Congenital Heart Defects
Assessing the Hemodynamic Benefits of Cardiac Resynchronization Therapy in Children Following Open-Heart Surgery
Malformations of the heart (congenital heart disease) are the most common congenital birth defects, occurring in about 1% of children.
- Trial name
- NCT00397514
- Testing
- Congenital Heart Surgery Patients
- Where
- Canada
- Volunteers
- 34 people
- Sponsor
- University of British Columbia
Other Acute Illnesses Presenting to the Hospital, Heart Failure
Evaluation of Implementation of a National Point-of-Care Ultrasound Training Program
This VA QUERI Partnered Evaluation Initiative will evaluate the impact of an immersive Point-of-care Ultrasound (POCUS) Training Course on provider skill acquisition and retention; the frequency of POCUS use by trained providers…
- Conditions
- Other Acute Illnesses Presenting to the Hospital, Heart Failure, Pneumonia, Deep Venous Thrombosis
- Trial name
- NCT03296280
- Where
- United States
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Congenital Heart Defects
Use of Color Doppler in Routine Examination of Fetal Heart in Second Trimester
To evaluate the percentage of severe heart defect diagnosed with the use of color Doppler at a routine fetal scan in the second trimester of pregnancy
- Trial name
- NCT01201486
- Where
- Norway
- Volunteers
- 6,781 people
- Sponsor
- Helse Stavanger HF
Sickle Cell Disease
Measurement of Cerebral Blood Flow Using Transcranial Doppler Ultrasound in Children With Sickle Cell Disease
Sickle cell disease (SCD) affects haemoglobin - the molecule in blood cells which carries oxygen. It causes red blood cells to become abnormal crescent (or sickle)- shaped.
- Trial name
- NCT02090881
- Testing
- Ultrasound scan
- Where
- United Kingdom
- Volunteers
- 25 people
- Sponsor
- Imperial College Healthcare NHS Trust
Sickle Cell Disease
Aspirin Prophylaxis in Sickle Cell Disease
Neurologic complications secondary to cerebrovascular damage are prevalent in children with sickle cell disease. These patients experience both clinically overt cerebrovascular accidents and "silent infarctions" demonstrated by…
- Trial name
- START (NCT00178464)
- Testing
- aspirin
- Volunteers
- 11 people
- Sponsor
- University of Rochester
Sickle Cell Anemia
Transcranial Doppler (TCD) With Transfusions Changing to Hydroxyurea
The primary goal of the Phase III TWiTCH trial is to compare 24 months of alternative therapy (hydroxyurea) to standard therapy (transfusions) for pediatric subjects with sickle cell anemia and abnormally high (≥200 cm/sec)…
- Trial name
- TWiTCH (NCT01425307)
- Testing
- Hydroxyurea
- Volunteers
- 159 people
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Sickle Cell Anemia
Sparing Conversion to Abnormal TCD (Transcranial Doppler) Elevation (SCATE)
The primary goal of the Phase III SCATE trial is to compare 30 months of alternative therapy (hydroxyurea) to standard care (observation) in children with sickle cell anemia and conditional (170 - 199cm/sec) Transcranial Doppler…
- Trial name
- SCATE (NCT01531387)
- Testing
- Hydroxyurea
- Where
- 3 sites in United States, Brazil and 1 more
- Volunteers
- 38 people
- Sponsor
- Children's Hospital Medical Center, Cincinnati