Trial reportCNS drugs2024
An Open-Label Extension Study Assessing the Long-Term Safety and Efficacy of Viloxazine Extended-Release Capsules in Adults with Attention-Deficit/Hyperactivity Disorder.
Trial report in CNS drugs, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 2 registered trials, which are not on this map. Cited by 5 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multicenter, Parallel-Group Flexible-Dose Study of the Efficacy and Safety of SPN-812 in Adults With Attention-Deficit/Hyperactivity Disorder (ADHD)
An Open-Label Extension Study to Evaluate the Long-Term Safety and Efficacy of SPN-812 (Viloxazine Extended-release Capsule) in Adults With Attention-Deficit/Hyperactivity Disorder
Who cites it
5 citing papers in PubMed.
- The Viloxazine Paradox: A Noradrenergic Agent's Journey From Antidepressant Obscurity to ADHD Precision Therapy.CNS neuroscience & therapeutics · 2026Review
- Reliability and convergent validity of the Japanese version of the Adult ADHD Investigator Symptom Rating Scale: a multicenter, longitudinal, non-interventional study.Frontiers in psychiatry · 2026Article
- Viloxazine Extended-Release: A Review in Attention-Deficit/Hyperactivity Disorder in Adults.CNS drugs · 2025Review
- Review
- Viloxazine for Attention-Deficit Hyperactivity Disorder: A Systematic Review and Meta-analysis of Randomized Clinical Trials.Journal of central nervous system disease · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveViloxazine ER (extended-release capsules; Qelbree
methodsThis was a multicenter, flexible-dose, open-label extension to a phase III, double-blind, placebo-controlled trial (NCT04016779). Viloxazine ER was initiated at 200 mg/day and adjusted (between 200 and 600 mg/day) to achieve optimal efficacy and tolerability. Trial enrollment was halted temporarily (24 March 2020 to 23 July 2020) due to the coronavirus disease 2019 (COVID-19) pandemic. Participants completing double-blind treatment during that time were offered delayed enrollment upon trial requalification. Safety outcomes were the primary objectives. Secondary objectives were efficacy outcomes, including the ADHD Investigator Symptom Rating Scale (AISRS), and were assessed relative to double-blind baseline (or trial re-entry baseline for those whose enrollment was delayed by the COVID-19 pandemic).
resultsOverall, 159 participants (133 immediate and 26 delayed rollover) received viloxazine ER, with a mean exposure of 265 ± 254.9 days. Adverse events (AEs) included (> 10% incidence) insomnia (13.8%), nausea (13.8%), headache (10.7%), and fatigue (10.1%). AEs led to discontinuation for 17.6% of participants [most commonly insomnia (2.5%), nausea (2.5%), and fatigue (1.9%)]. AISRS total score [baseline mean ± standard deviation (SD): 37.9 ± 6.3] improved by the first follow-up visit (-11.4 ± 9.5; week 2) with continued improvement at subsequent visits (last on-study visit: -18.2 ± 11.54). Similar patterns of improvement were seen for other measures of efficacy, including quality of life and executive function. Following initial dose optimization, most participants (73%) used viloxazine ER doses ≥ 400 mg/day, with 36% using doses of 600 mg/day.
conclusionsLong-term viloxazine ER use was well tolerated, with no new long-term safety findings. Improvements in ADHD symptoms and associated measures were sustained throughout trial participation. In total, 73% percent of adult participants in this long-term study used viloxazine ER doses of 400 mg or more during maintenance treatment. CLINICAL
trial registrationClinicaltrials.gov Identifier: NCT04143217.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.