Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 2, 2026, 7:00 AM EDT

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Showing 1–5 of 5 matching trials from the live ClinicalTrials.gov search.
Conditions
Combined D,L-2-hydroxyglutaric Aciduria
Interventions
Sodium phenylbutyrate
Drug
Lead sponsor
Jerry Vockley, MD, PhD
Other
Eligibility
Male only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Idiopathic Hypersomnia
Interventions
Serdexmethylphenidate, Placebo
Drug · Other
Lead sponsor
Zevra Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
41
States / cities
Birmingham, Alabama • Daphne, Alabama • Guntersville, Alabama + 34 more
Conditions
ADHD
Interventions
KP415 oral capsule
Drug
Lead sponsor
Zevra Therapeutics
Industry
Eligibility
6 Years to 12 Years
Enrollment
282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
19
States / cities
Little Rock, Arkansas • Colorado Springs, Colorado • Bradenton, Florida + 15 more
Conditions
ADHD
Interventions
KP415 oral capsule, Placebo oral capsule
Drug
Lead sponsor
Zevra Therapeutics
Industry
Eligibility
6 Years to 12 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
5
States / cities
Bradenton, Florida • Maitland, Florida • Las Vegas, Nevada + 2 more
Conditions
Medium-chain Acyl-CoA Dehydrogenase Deficiency
Interventions
Sodium phenylbutyrate
Drug
Lead sponsor
Jerry Vockley, MD, PhD
Other
Eligibility
4 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania