Acp-211
Major Depressive Disorder (Mdd), Depressive Disorder, Treatment-Resistant
Phase II
Recruiting
ACP-211 Monotherapy for Major Depressive Disorder With Inadequate Antidepressant Response
Dec 09, 2025
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Carbetocin
Hyperphagia In Prader-Willi Syndrome
Phase III
Active Not Recruiting
Study of Carbetocin Nasal Spray for the Treatment of Hyperphagia in Prader-Willi Syndrome
Dec 08, 2023
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Pimavanserin
Irritability Associated With Autism Spectrum Disorder
Phase II/III
Terminated
Extension Study of Pimavanserin in Irritability Associated With Autism Spectrum Disorder
Aug 30, 2022
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Pimavanserin
Irritability Associated With Autism Spectrum Disorder
Phase II/III
Completed
Pimavanserin for the Treatment of Irritability Associated With Autism Spectrum Disorder
Aug 29, 2022
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Acp-044 Dose A, Acp-044 Dose B
Osteoarthritis Pain
Phase II
Terminated
Evaluate the Efficacy and Safety of ACP-044 in Subjects With Pain Associated With Osteoarthritis of the Knee
Aug 10, 2021
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FAQ
What are the FDA phases for drug approval?
The FDA approval process for new drugs is divided into several phases:
a. Preclinical testing
b. Phase 1 – Safety and dosage
c. Phase 2 – Effectiveness and side effects
d. Phase 3 – Confirmation of effectiveness, monitoring of adverse reactions, and comparison with existing treatments
e. Phase 4 – Post-marketing studies to track long-term safety and effectiveness
a. Preclinical testing
b. Phase 1 – Safety and dosage
c. Phase 2 – Effectiveness and side effects
d. Phase 3 – Confirmation of effectiveness, monitoring of adverse reactions, and comparison with existing treatments
e. Phase 4 – Post-marketing studies to track long-term safety and effectiveness
What is a clinical trial?
A clinical trial is a carefully designed study in which researchers test a drug, treatment, or medical device in people to evaluate its safety, effectiveness, and potential side effects. These trials are essential for determining whether a new treatment should be approved for widespread use.
What drugs does ACADIA Pharmaceuticals (DR6) have in its pipeline
DR6 is currently developing the following drugs: Acp-211, Acp-204, Acp-204. These drug candidates are in various stages of clinical development as the company works toward FDA approval.