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Aplindore

Phase 2

Early Stage Parkinson's Disease | Small molecule | Neurology |Ligand Pharmaceuticals Incorporated|Trials Updated: Oct 3, 2011

Aplindore development status

Highest phase Phase 2
Registered trials 2 across 1 sponsor since Feb 2008

Aplindore target and mechanism

Molecular targetDRD2
Target classPartial Agonist
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment64

FDA Designations

No designations recorded

Aplindore clinical trials

Aplindore · 2 trials · 2 indications

Phase 2 2
NCT00626418The Effects of Aplindore on the Treatment of Signs and Symptoms of Restless Legs SyndromeRestless Legs Syndrome
COMPLETED24 Analytics
NCT00623324The Effects of Aplindore on the Treatment of Signs and Symptoms of Parkinson's DiseaseEarly Stage Parkinson's Disease
COMPLETED40 Analytics
PHASE2COMPLETED
The Effects of Aplindore on the Treatment of Signs and Symptoms of Restless Legs Syndrome
Restless Legs SyndromeUnlock trial analytics
PHASE2COMPLETED
The Effects of Aplindore on the Treatment of Signs and Symptoms of Parkinson's Disease
Early Stage Parkinson's DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

To assess the efficacy and tolerability of single doses of aplindore compared to placebo in RLS.
5-8 Days
Evaluation of safety and tolerability data
3 weeks

Secondary Endpoints

To generate safety data with aplindore, to generate pilot data on the effects of aplindore on changes in blood pressure and heart rate associated with PLMS in patients with RLS, to understand the PK of aplindore.
5-8 Days
Change in UPDRS Motor (Part III) score, UPDRS Activities of Daily Living (ADL; Part II), the Non-Motor Symptoms Questionnaire, and the Epworth Sleepiness Scale (ESS) and nausea Likert Scale.
3 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingSINGLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
1PLACEBO_COMPARATORThis will be a crossover study. Ascending doses of active drug will be administered on study nights 3-5 with an option of 3 additional nights in an attempt to identify a tolerable efficacious dose. Night 1 will be an adaptation night and night two will be a placebo night.
2ACTIVE_COMPARATORThis will be a crossover study. Ascending doses of active drug will be administered on study nights 3-5 with an option of 3 additional nights in an attempt to identify a tolerable efficacious dose. Night 1 will be an adaptation night and night two will be a placebo night.

Interventions

NameTypeDescription
AplindoreDRUGTablets 0.05, 0.1, 0.2, 0.3, 0.5 and 0.7 mg QD for up to 6 nights
PlaceboDRUGPlacebo tablets
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: * Aged 18 years or older; * Diagnosis of primary Restless Legs Syndrome (RLS) using ICSD-2 criteria: * The patient reports an urge to move the legs, usually accompanied or caused by uncomfortable and unpleasant sensations in the legs. * The urge to move or the unpleasant sensati...

Countries:United States
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Frequently asked questions about Aplindore

What is Aplindore used for?

Aplindore is an investigational small molecule being studied for the treatment of early stage Parkinson's disease and restless legs syndrome. It has been evaluated in Phase 2 clinical trials in both indications. It is not approved for any use and remains in clinical development.

What does Aplindore target?

Aplindore targets the dopamine D2 receptor, also known as DRD2, where it acts as a partial agonist. This target class places it among compounds that modulate dopaminergic signaling, a pathway relevant to movement disorders such as Parkinson's disease and restless legs syndrome.

Who is developing Aplindore?

Aplindore is being developed by Ligand Pharmaceuticals Incorporated, which trades under the ticker LGND. The company has sponsored the clinical research conducted on the compound to date.

What phase is Aplindore in?

Aplindore is in Phase 2 clinical development. It has not been approved by the FDA for any indication and remains an investigational agent. Both of its recorded Phase 2 studies have completed, and no trials are currently active.

What clinical trials has Aplindore been studied in?

Aplindore has been evaluated in two completed Phase 2 trials. NCT00626418 tested it in restless legs syndrome with 24 participants, and NCT00623324 tested it in early stage Parkinson's disease with 40 participants. Both were randomized, double-blind, placebo-controlled studies conducted in the United States.