Sparing Conversion to Abnormal TCD (Transcranial Doppler) Elevation (SCATE) — SCATE

Sickle Cell Anemia Clinical Trial

Official title:
Sparing Conversion to Abnormal TCD Elevation (SCATE) - a Phase III Clinical Trial to Compare Standard Care (Observation) With Alternative Therapy (Hydroxyurea) for Reducing the Risk of Converting to an Abnormal TCD Velocity in Children With Sickle Cell Anemia and Conditional Pre-treatment TCD Velocities.

Status Terminated

Clinical Trial Summary

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 (TCD) velocities. For the alternative regimen (hydroxyurea) to be declared superior to the standard treatment regimen (observation), the hydroxyurea-treated group must have a three-fold reduction in the incidence of conversion to abnormal TCD velocities (≥ 200 cm/sec), compared to the standard treatment arm.

Clinical Trial Description

Results from previous studies confirm an increased risk of stroke among children with conditional TCD velocities. In addition, studies suggest that patients who were on observation alone, converted from conditional TCD (moderate risk category) to an abnormal TCD (with a much higher risk for primary stroke) within 30 months of initial identification of the conditional TCD velocity; this conversion led to initiation of chronic and indefinite transfusions in all cases. Preliminary data suggests that the risk of conversion to abnormal TCD velocities will be lower for subjects with conditional TCD velocities on hydroxyurea by at least three-fold. This important difference in conversion risk rate suggests that an alternative treatment could have a substantial and beneficial impact on patients with elevated TCD velocities.

An alternative treatment could protect the brain of patients with SCA and conditional TCD velocities who are at increased risk for stroke. The avoidance of chronic blood transfusions would be a great benefit for all children with sickle cell disease, especially those in developing countries where the blood supply may be less safe (in comparison with that in the US) or unavailable, and very costly. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01531387
Study type	Interventional
Source	Children's Hospital Medical Center, Cincinnati
Contact
Status	Terminated
Phase	Phase 3
Start date	May 2012
Completion date	January 2014

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT04134299` - To Assess Safety, Tolerability and Physiological Effects on Structure and Function of AXA4010 in Subjects With Sickle Cell Disease	N/A
Completed	`NCT04581356` - Voxelotor Sickle Cell Exercise Study	Phase 4
Completed	`NCT02712346` - The Role of Endothelin-1 in Sickle Cell Disease	Phase 1
Withdrawn	`NCT02162225` - Study of Beet Juice for Patients With Sickle Cell Anemia	Phase 2
Completed	`NCT01976416` - Novel Use Of Hydroxyurea in an African Region With Malaria	Phase 3
Completed	`NCT01137721` - State Of The Art Functional Imaging In Sickle Cell Disease
Terminated	`NCT01350232` - Treatment of Sickle Cell Anemia With Stem Cell Transplant	N/A
Withdrawn	`NCT00937144` - Endothelial Function in Patients With Sickle Cell Anemia Before and After Sildenafil	Phase 4
Completed	`NCT00512564` - Clinical and Laboratory Assessment of Iron Overload in Sickle Cell Anemia and Sickle Cell Thalassemia	N/A
Completed	`NCT00512226` - Iron Overload Assesment in Sickle Cell Anemia and Sickle Cell Thalassemia	N/A
Completed	`NCT00004143` - Allogeneic Mixed Chimerism Stem Cell Transplant Using Campath for Hemoglobinopathies & Bone Marrow Failure Syndromes	Phase 2
Completed	`NCT00004412` - Phase II Randomized Trial:Arginine Butyrate Plus Standard Local Therapy in Patients With Refractory Sickle Cell Ulcers	Phase 2
Withdrawn	`NCT01925001` - Phase 2 Study of MP4CO to Treat Vaso-occlusive Sickle Crisis	Phase 2
Completed	`NCT01783990` - Pediatric Hydroxyurea Phase III Clinical Trial (BABY HUG) Follow-up Observational Study II Protocol
Completed	`NCT01848691` - Carbon Monoxide Monitor for the Measurement of End-Tidal Carbon Monoxide Levels in Children With or Without Hemolysis	N/A
Completed	`NCT01000155` - Efficacy of Vorinostat to Induce Fetal Hemoglobin in Sickle Cell Disease	Phase 2
Completed	`NCT00874172` - Effectiveness of New Analgesic Strategy Compared to the Usal Antalgic Strategy	N/A
Completed	`NCT00236093` - Extension Study of ACTIQ Treatment for Children and Adolescents With Breakthrough Pain	Phase 2
Completed	`NCT00399074` - Sulfadoxine- Pyrimethamine Versus Weekly Chloroquine for Malaria Prevention in Children With Sickle Cell Anemia	Phase 3
Completed	`NCT00004492` - Phase I/II Randomized Study of Hydroxyurea With or Without Clotrimazole in Patients With Sickle Cell Anemia	Phase 1/Phase 2

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.