Trial reportPsychopharmacology bulletin2021
A Phase 3 Placebo-Controlled Trial of Once-Daily 400-mg and 600-mg SPN-812 (Viloxazine Extended-Release) in Adolescents with ADHD.
Trial report in Psychopharmacology bulletin, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
28 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.
- Response Trajectories and Temporal Trends of Viloxazine Treatment for Young People With ADHD: A Meta-Analysis.JAMA network open · 2024Pooled it
- Trial
- Trial
- A post hoc analysis of the effect of viloxazine extended-release capsules on learning and school problems in children and adolescents with attention-deficit/hyperactivity disorder.European child & adolescent psychiatry · 2023Trial
- Trial
- Impact of a High-Fat Meal and Sprinkled Administration on the Bioavailability and Pharmacokinetics of Viloxazine Extended-Release Capsules (QelbreeEuropean journal of drug metabolism and pharmacokinetics · 2022Trial
- Population Pharmacokinetics of Viloxazine Extended-Release Capsules in Pediatric Subjects With Attention Deficit/Hyperactivity Disorder.Journal of clinical pharmacology · 2021Trial
- Translating Attention-Deficit/Hyperactivity Disorder Rating Scale-5 and Weiss Functional Impairment Rating Scale-Parent Effectiveness Scores into Clinical Global Impressions Clinical Significance Levels in Four Randomized Clinical Trials of SPN-812 (Viloxazine Extended-Release) in Children and Adolescents with Attention-Deficit/Hyperactivity Disorder.Journal of child and adolescent psychopharmacology · 2021Trial
- Pharmacokinetics of Coadministered Viloxazine Extended-Release (SPN-812) and Lisdexamfetamine in Healthy Adults.Journal of clinical psychopharmacologyTrial
- Effect of Hepatic Impairment on the Pharmacokinetics of Single-Dose Viloxazine Extended-Release Capsules (QelbreeClinical drug investigation · 2026Article
- The Viloxazine Paradox: A Noradrenergic Agent's Journey From Antidepressant Obscurity to ADHD Precision Therapy.CNS neuroscience & therapeutics · 2026Review
- Review
- Efficacy and Tolerability of Viloxazine Compared to Placebo on Emotional, Behavioral, and Executive Functioning in Children and Adolescents with ADHD: A Systematic Review and Meta-Analysis.Neuropsychiatric disease and treatment · 2025Review
- From Consensus Statement to Pills to Pixels: New Innovations in Attention-Deficit/Hyperactivity Disorder Care.Journal of child and adolescent psychopharmacology · 2024Review
- Efficacy and Safety of SPN-812 (Extended-Release Viloxazine) in Children and Adolescents with Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis.Brain sciences · 2023Review
- Response of peer relations and social activities to treatment with viloxazine extended-release capsules (QelbreeBrain and behavior · 2023Article
- Article
- The role of placebo response in the efficacy outcome assessment in viloxazine extended-release pivotal trials in paediatric subjects with attention-deficit/hyperactivity disorder.British journal of clinical pharmacology · 2022Article
- Viloxazine for the Treatment of Attention Deficit Hyperactivity Disorder.Health psychology research · 2022Article
- Extended-Release Viloxazine for Children and Adolescents With Attention Deficit Hyperactivity Disorder.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objectives: Three Phase 3 trials have demonstrated the efficacy and safety of SPN-812 in pediatric subjects with ADHD. Here, we report the results of a fourth trial. Methods: Eligible adolescent subjects (N = 297) were randomized to SPN-812 (400- or 600-mg/day) or placebo. The primary efficacy endpoint was change from baseline (CFB) at end of study (EOS) in the ADHD Rating Scale-5 (ADHD-RS-5) Total score. Statistical analyses included sequential testing for multiple treatment comparisons. Key secondary endpoints included: Clinical Global Impression-Improvement (CGI-I) score at EOS and CFB at EOS in the Conners 3-Parent Short Form (Conners 3-PS) Composite T-score and Weiss Functional Impairment Rating Scale-Parent (WFIRS-P) Total average score. Results: The CFB at EOS ADHD-RS-5 Total score (least square [LS] means ± SE) for 400-mg/day, 600-mg/day SPN-812, and placebo was -18.3 ± 1.36, -16.7 ± 1.39, and -13.2 ± 1.38, respectively. The difference vs. placebo was statistically significant only for the 400-mg/day SPN-812 treatment group (600 mg/day: Conclusions: Treatment with 400- but not 600-mg/day SPN-812 resulted in statistically significant improvement in the primary endpoint. The negative result seen in the 600-mg/day SPN-812 group was likely due to an unusually high placebo response. Safety data were consistent across all doses in the SPN-812 trials.
Indexed as
Identifiers
34092822PMC8146561W3170851891What 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.