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Pimavanserin

Phase 3

Neuropsychiatric Symptoms Related to Neurodegenerative Disease | Small molecule | Other |ACADIA Pharmaceuticals Inc.|Last Updated: Dec 31, 2024

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment1,379
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03623321Extension Study of Pimavanserin in Adult Subjects With Neuropsychiatric Symptoms Related to Neurodegenerative DiseasePHASE3 COMPLETED 595Jul 17, 2018May 5, 2023Dec 20, 202488 United States, Bulgaria +10
NCT03575052A Safety Study of Pimavanserin in Adult and Elderly Subjects Experiencing Neuropsychiatric Symptoms Related to Neurodegenerative DiseasePHASE3 COMPLETED 784May 21, 2018May 6, 2022Dec 31, 2024104 United States, Bulgaria +10
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Study Endpoints
Primary Endpoints
Treatment-emergent Adverse Events (TEAEs)
Treatment period and Follow-up period: 56 weeks

Number (%) of patients experiencing at least one TEAE

Secondary Endpoints
Change From Baseline to Week 8 in Extrapyramidal Symptom Rating Scale-Abbreviated (ESRS-A)
Treatment Period: 8 weeks
Change From Baseline to Week 8 in Mini-Mental State Examination (MMSE)
Treatment Period: 8 weeks
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Drug - pimavanserinEXPERIMENTALPimavanserin 34 mg is provided as 2×17 mg tablets as single dose, once daily by mouth. Dose adjustments of pimavanserin down to 20 mg (provided as 2×10 mg tablets as a single dose, once daily by mouth) and up to 34 mg are permitted based on Investigator assessment of clinical response.
PlaceboPLACEBO_COMPARATOR -
Interventions
NameTypeDescription
PimavanserinDRUG• Pimavanserin 34 mg is provided as 2×17 mg tablets as single dose, once daily by mouth. Dose adjustments of pimavanserin down to 20 mg (provided as 2×10 mg tablets as a single dose, once daily by mouth) and up to 34 mg are permitted based on Investigator assessment of clinical response.
PlaceboDRUGPlacebo, tablets, once daily by mouth (provided as two placebo tablets)
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Eligibility Criteria
Age Range60 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites88

Inclusion Criteria: 1. Subject satisfied all entry criteria for the antecedent pimavanserin study 2. Subject completed the antecedent study; or was participating in a pimavanserin study that the Sponsor ended early 3. Has a designated study partner/caregiver who meets the following requirements: ...

Countries:United StatesBulgariaColombiaCzechiaGeorgiaMexicoPolandRomaniaRussiaSerbiaSouth AfricaUkraine
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