Recent Updates
Recently added Catalysts

SPD503-AM

Phase 3

ADHD | Small molecule | Psychiatry |Takeda Pharmaceutical Company Limited|Last Updated: Jun 14, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
Premium
Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
Premium
Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment461
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00734578Efficacy and Safety of SPD503 in Combination With PsychostimulantsPHASE3 COMPLETED 461Sep 2, 2008Dec 10, 2009Jun 14, 202161 United States
Unlock Drug Trial Details
Study Endpoints
Primary Endpoints
Change From Baseline in Attention Deficit Hyperactivity Disorder Rating Scale-fourth Edition (ADHD-RS-IV) Total Score at Week 8 - Last Observation Carried Forward (LOCF)
Baseline and weekly up to 8 weeks

The ADHD-RS-IV consists of 18 items scored on a 4-point scale ranging from 0 (no symptoms) to 3 (severe symptoms) with total score ranging from 0 to 54.

Secondary Endpoints
Percentage of Participants With Improvement on Clinical Global Impression-Improvement (CGI-I) at Week 8 - LOCF
Baseline and weekly up to 8 weeks
Assessment of Clinical Global Impression-Severity of Illness (CGI-S) at Week 8 - LOCF
Baseline and weekly up to 8 weeks
Change From Baseline in Conners' Global Index - Parent (CGI-P) Total Score at Week 8 - LOCF: Morning Assessment (Before School)
Baseline and weekly up to 8 weeks
Unlock Study Endpoints
Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
SPD503-AMEXPERIMENTALSPD503 (Guanfacine Extended Release)
SPD503-PMEXPERIMENTALSPD503 (Guanfacine Extended Release)
PlaceboPLACEBO_COMPARATOR -
Interventions
NameTypeDescription
SPD503-AMDRUGSPD503 (Guanfacine Extended Release)-AM Optimized 1-4mg
SPD503-PMDRUGSPD503 (Guanfacine Extended Release)-PM Optimized 1-4mg
PlaceboDRUGPlacebo matched to Guanfacine Hydrochloride Extended Release
Unlock Study Design Details
Eligibility Criteria
Age Range6 Years — 17 Years
SexALL
Healthy VolunteersNo
Study Sites61

Inclusion Criteria: * Healthy subjects with ADHD currently taking a stable dose of psychostimulant for at least 4 weeks * Aged 6-17 years with a sub-optimal * Partial response to stimulants * Subjects must be \< 95th percentile for BMI with weight \>= 55lbs and \<= 176lbs

Countries:United States
Unlock Eligibility Criteria
Competitive Landscape -ADHD 3 trials
CompanyTickerTrialsLead PhaseDrugs
Supernus Pharmaceuticals, Inc.SUPN1PHASE3SPN-812
Unlock Competitive Intelligence