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SPD503-AM

Phase 3

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

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment461

FDA Designations

No designations recorded

Clinical trial landscape

SPD503-AM · 1 trial · 1 indication

Phase 3 1
NCT00734578Efficacy and Safety of SPD503 in Combination With PsychostimulantsADHD
COMPLETED461 Analytics
PHASE3COMPLETED
Efficacy and Safety of SPD503 in Combination With Psychostimulants
ADHDUnlock trial analytics

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
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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
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Eligibility Criteria

Age Range6 Years to 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
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Competitive Landscape -ADHD 3 trials

CompanyTickerTrialsLead PhaseDrugs
Supernus Pharmaceuticals, Inc.SUPN1PHASE3SPN-812
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Frequently asked questions about SPD503-AM

What is SPD503-AM used for?

SPD503-AM is an investigational small molecule being developed for the treatment of attention deficit hyperactivity disorder (ADHD). It is currently in Phase 3 clinical development and has not been approved by regulatory authorities.

Who makes SPD503-AM?

SPD503-AM is being developed by Takeda Pharmaceutical Company Limited, which is publicly traded under the ticker symbol TAK. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with ADHD.

What phase is SPD503-AM in?

SPD503-AM is in Phase 3 clinical development. It is an investigational drug and has not yet received regulatory approval. A Phase 3 clinical trial has been completed to assess its efficacy and safety in combination with psychostimulants for ADHD.

What clinical trials is SPD503-AM in?

SPD503-AM has one completed Phase 3 clinical trial registered as NCT00734578, titled 'Efficacy and Safety of SPD503 in Combination With Psychostimulants.' This randomized, double-blind, placebo-controlled study enrolled 461 participants aged 6 years and older with ADHD in the United States.

Is SPD503-AM FDA approved?

SPD503-AM is not FDA approved. It is an investigational drug currently in Phase 3 clinical development. A completed Phase 3 trial has evaluated its use in combination with psychostimulants for ADHD, but regulatory approval has not been granted.