CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 271 enrolled / 271 target
Drug / intervention
L-Arginine Hydrochloride +1 moredrug
Likely dose
L-Arginine Hydrochloride 200 mg/kgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04839354
NCT04839354Phase 3CompletedOn Track (4.5/mo)Completion was 23mo ago

Sickle Cell Disease Treatment With Arginine Therapy (STArT) Trial

Claudia R. Morris·interventional·Posted Apr 9, 2021·Updated Jun 23, 2026

In Brief

A Phase 3 clinical trial evaluating L-Arginine Hydrochloride and Normal saline for Sickle Cell Disease. Completed, enrolled 271 participants across 10 sites.

Detailed Summary

The trial is designed to test intravenous (IV) arginine therapy in children with sickle cell disease (SCD) and vaso-occlusive painful episodes (VOE) to further knowledge on efficacy and safety of this orphan drug.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 3CompletedFinished
20222023202420252026
First PostedApr 9, 2021
Enrollment StartJun 21, 2021
Primary CompletionJul 11, 2024
TodayJul 2, 2026
Enrollment to primary: 3.1 yearsPosted 5.2 years ago

Arms & Interventions

L-Arginine Hydrochlorideexperimental

Participants receiving L-arginine hydrochloride in parenteral form. Participants receive up to 21 doses, with participants who are discharged early receiving fewer doses.

Drug: L-Arginine Hydrochloride
Placeboplacebo_comparator

Participants receiving normal saline as a placebo for L-arginine hydrochloride for up to 21 doses, with participants who are discharged early receiving fewer doses.

Other: Normal saline

Interventions

L-Arginine Hydrochloridedrug

A one-time L-arginine hydrochloride loading dose of 200 mg/kg will be administered intravenously (IV) followed by a standard dose of 100 mg/kg given by IV three times per day (TID).

Normal salineother

A placebo of normal saline will be administered by IV with a loading dose of 2ml/kg followed by 1ml/kg given by IV three times per day (TID).