Hypertension, Pulmonary Clinical Trial
Official title:
A Phase III Single-Blind, Randomized, Placebo Controlled, Clinical Trial to Determine the Safety and Efficacy of Intravenous L-Citrulline Versus Placebo in Children Undergoing Cardiopulmonary Bypass
This clinical trial will determine the safety and effectiveness of intravenous L-citrulline
in children undergoing cardiopulmonary bypass during heart surgery. Participants will be
randomly assigned to either L-citrulline or a placebo (a substance that has no medicine in
it).
Citrulline is a protein building block in the body that can convert into another substance,
nitric oxide (NO), which controls blood pressure in the lungs. Increased blood pressure in
the lungs can be an important surgical problem; it may also lead to problems following
surgery, such as severe high blood pressure in the lungs (pulmonary hypertension), increased
time spent on a breathing machine, and a longer stay in the intensive care unit (ICU). The
hypothesis of this study is that perioperative supplementation with intravenous citrulline
will increase plasma citrulline, arginine and NO metabolites and prevent elevations in the
postoperative PVT leading to a decrease in the duration of postoperative invasive mechanical
ventilation.
Status | Completed |
Enrollment | 77 |
Est. completion date | December 2009 |
Est. primary completion date | December 2009 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | N/A to 17 Years |
Eligibility |
Inclusion Criteria: - Undergoing cardiopulmonary bypass surgery with 1 of the following 5 procedures: 1. AVSD repair 2. VSD repair 3. Bidirectional Glenn 4. Modified Fontan 5. Arterial switch Exclusion Criteria: - Pulmonary artery or vein abnormalities not being addressed surgically - Preoperative requirement for mechanical ventilation or intravenous inotrope support - Any condition that might interfere with study objectives, as determined by the investigator - Pregnant |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention
Country | Name | City | State |
---|---|---|---|
United States | Vanderbilt University Medical Center | Nashville | Tennessee |
Lead Sponsor | Collaborator |
---|---|
Asklepion Pharmaceuticals, LLC | Vanderbilt University |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Duration of postoperative mechanical ventilation in hours compared between treatment groups. | Measured in hours from the end of surgery until extubation | Yes | |
Secondary | Incidence of increased PVT (defined as a sustained mean pulmonary artery pressure greater than 20 mm Hg for at least 2 hours, measured during the first 48 hours | Measured in hours from the end of surgery until extubation | Yes | |
Secondary | Postoperative intravenous inotrope score | Measured at 48 hours | No | |
Secondary | Length and volume of chest tube drainage | Measured in hours from the end of surgery until removal of chest tubes | No | |
Secondary | Length of ICU stay | Measured in hours from the end of surgery to discharge from ICU | No | |
Secondary | Length of hospitalization | Measured from the day of surgery until discharge from hospital | No | |
Secondary | Survival | Measured at 30 days post surgical repair | No |
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