A Study of Intravenous L-Citrulline in Patients Aged 6-21 Years Old With Sickle Cell Disease Presenting to Emergency Departments in Acute Vaso-Occlusive Crisis
Public ClinicalTrials.gov record NCT06989567. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase III, Multi-Center, Double-Blind, Placebo-Controlled, Randomized Study of Intravenous L-Citrulline in Sickle Cell Disease Presenting to Emergency Departments in Acute Vaso-Occlusive Crisis in Children, Adolescents and Young Adults (6 to 21 Years)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study is being done to learn more about a possible new treatment for pain episodes (called vaso-occlusive crises or VOCs) in children, teens, and young adults with sickle cell disease (SCD). The study will include about 120 participants between the ages of 6 and 21 who come to the emergency department (ED) with a VOC. A VOC is a painful episode that happens with no clear cause and no signs of infection or major problems with organs like the liver or kidneys. Before joining the study, patients and their families may be asked to learn about it and give permission (called consent or assent) while at a regular clinic visit. If that hasn't happened yet, the consent/assent process will happen at the emergency department when the patient comes in for care. If the patient meets all the study requirements, they can join the treatment part of the study. Participants will be randomly assigned (like flipping a coin) to receive either: L-citrulline, the study drug, or A placebo, which looks the same but has no active ingredients. Everyone has an equal chance of getting either one. The study drug is given through an IV. It starts with one larger dose, followed by a steady infusion for up to 12 hours. All patients in the study will still receive the usual pain treatment (called standard of care), which may include opioids. However, some patients may need fewer opioids if the study treatment helps with their pain. If any medicines are not allowed during the study, the doctor will explain this during the consent process. Patients can go home once: Their pain is controlled with oral (by mouth) pain medicine, They're eating and drinking well, and They've been given a personal pain management plan to use at home. After leaving the hospital, the study team will follow up with patients by phone about 2 days later (within a 12-hour window), again around Day 7, and again around Day 30 to check how they're doing.
Study identification
- NCT ID
- NCT06989567
- Recruitment status
- Not yet recruiting
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 120 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 6 Years to 21 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 24, 2025
- Primary completion
- May 31, 2027
- Completion
- May 31, 2029
- Last update posted
- May 28, 2025
2025 – 2029
United States locations
- U.S. sites
- 6
- U.S. states
- 6
- U.S. cities
- 6
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Children's National Hospital | Washington D.C. | District of Columbia | 20010 | — |
| University of Miami | Coral Gables | Florida | 33146 | — |
| Emory University | Atlanta | Georgia | 30322 | — |
| Johns Hopkins Hospital | Baltimore | Maryland | 21287 | — |
| Children's Hospital of Michigan | Detroit | Michigan | 48201 | — |
| East Carolina (University of North Carolina) | Greenville | North Carolina | 27858 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT06989567, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 28, 2025 · Synced Sep 2, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06989567 live on ClinicalTrials.gov.