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Drug · CHEMBL596802

PRIDOPIDINE

7 sourcespipelines-2026-09-18-0.3.1

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ConductScience Library. PRIDOPIDINE. Drugs and targets, record CHEMBL596802. Release pipelines-2026-09-18-0.3.1, 18 Sept 2026. https://conductscience.org/library/drugs/CHEMBL596802

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Drug

Names and IDs as ChEMBL gives them, through Open Targets.

Name
PRIDOPIDINE
ChEMBL
ChEMBL ID
CHEMBL596802
ChEMBL
Type
Small molecule
ChEMBL
Brand names
Huntexil
ChEMBL
Other names
ACR-16, ACR16, FR-310826, FR310826, Pridopidina
ChEMBL
DrugBank
DB11947
DrugBank
InChIKey
YGKUEOZJFIXDGI-UHFFFAOYSA-N
ChEMBL
Open Targets' highest stage
Phase 3, for 2 of its 2 diseases, from ClinicalTrials.gov and TTD
Open Targets

Targets1

The targets ChEMBL's mechanism records give for the drug, through Open Targets. A mechanism record says what the drug acts on, not how strongly.

TargetProteinMechanismActionGene in Genes
DRD2D(2) dopamine receptorDopamine D2 receptor modulatorMODULATORhttps://conductscience.org/library/genes/1813

Source ChEMBL

Diseases2

The diseases Open Targets' clinical reports study the drug for, the most trial reports first. The stage is Open Targets', the highest any of its sources reports for the pair, and each row names the sources that report it.

DiseaseOpen Targets' stageStage reported byReportsOf them trialsIts drugs
Huntington diseasePhase 3ClinicalTrials.gov and TTD86https://conductscience.org/library/drugs?q=MONDO_0007739
amyotrophic lateral sclerosisPhase 3ClinicalTrials.gov33https://conductscience.org/library/drugs?q=MONDO_0004976

Trials11

Trials whose record names the drug by a name ChEMBL states, posted results first, then the largest. Open Targets read each trial's text to find its drugs.

TrialTitlePhaseParticipantsResults first postedNamed asLinked bySource
NCT04556656PRidopidine's Outcome On Function in Huntington Disease, PROOF- HDPhase 34992025-03-12pridopidineIts nameClinicalTrials.gov
NCT00665223A Study of Treatment With Pridopidine (ACR16) in Participants With Huntington's DiseasePhase 34372023-08-29acr16Its nameClinicalTrials.gov
NCT02006472A Phase 2, to Evaluating the Safety and Efficacy of Pridopidine Vs Placebo for Symptomatic Treatment in Patients With Huntington's DiseasePhase 24082021-07-19pridopidineIts nameClinicalTrials.gov
NCT02494778A Study Evaluating if Pridopidine is Safe, Efficacious, and Tolerable in Patients With Huntington's DiseasePhase 22482021-09-17pridopidineIts nameClinicalTrials.gov
NCT00724048A Study of Pridopidine (ACR16) for the Treatment of Participants With Huntington's DiseasePhase 22272023-08-31acr16Its nameClinicalTrials.gov
NCT04615923HEALEY ALS Platform Trial - Regimen D PridopidinePhase 2/31632023-08-23pridopidineIts nameClinicalTrials.gov
NCT01306929Open-label Extension Study of Pridopidine (ACR16) in the Symptomatic Treatment of Huntington DiseasePhase 21342022-02-09pridopidineIts nameClinicalTrials.gov
NCT03019289A Study to Evaluate Sigma-1 and Dopamine-2 Receptor Occupancy by Pridopidine in the Human Brain of Healthy Volunteers and in Patients With Huntington's DiseasePhase 1232021-11-16pridopidineIts nameClinicalTrials.gov
NCT03922711A Study to Assess the Safety and Effectiveness of Pridopidine Compared to Placebo in the Treatment of Levodopa-Induced Dyskinesia in Patients With Parkinson's DiseasePhase 2232022-07-01pridopidineIts nameClinicalTrials.gov
NCT07322003Pridopidine Phase 3 Study to Evaluate Efficacy and Safety in ALSPhase 3500pridopidineIts nameClinicalTrials.gov

1 to 10 of 11

See all 11 trials

Comparisons in its trials6

Comparisons Trial comparisons calculated in the trials whose record names the drug, most participants first. A comparison in one of its trials does not always compare the drug, so read the two groups.

ComparisonGroup 1, with the outcomeGroup 2, with the outcomeParticipantsTrialSource
Pridopidine vs Placebo: deaths from any cause4 of 2501 of 249499NCT04556656Trial comparisons
Pridopidine vs Placebo: serious adverse events34 of 25021 of 249499NCT04556656Trial comparisons
Pridopidine vs Matching Placebo: Number of Participants That Experienced Death or Death Equivalent5 of 1206 of 162282NCT04615923Trial comparisons
Pridopidine vs Matching Placebo: deaths from any cause2 of 1200 of 42162NCT04615923Trial comparisons
Pridopidine vs Matching Placebo: serious adverse events16 of 1213 of 41162NCT04615923Trial comparisons
Pridopidine 45 mg BID vs Placebo: Total Functional Capacity Responder Rate in Early HD30 of 3720 of 4178NCT02006472Trial comparisons

Papers from its trials11

The papers the trials whose record names the drug list on ClinicalTrials.gov as their results (RESULT) or as drawn from them (DERIVED), results first, newest first.

PMIDListed asTrials listing itSource
42912861DERIVED1PubMed
41406304DERIVED1PubMed
40913168DERIVED1PubMed
40067755DERIVED1PubMed
36811812DERIVED3PubMed
31356217DERIVED1PubMed
30776019DERIVED1PubMed
30572891DERIVED1PubMed
30563778DERIVED1PubMed
28826192DERIVED1PubMed

Tests in its trials2

The tests ConductCognition runs that the trials whose record names the drug name in their registered outcomes, as ScienceGraph matched them. ConductCognition's list names the tests it runs, not every test a trial used.

TestTrials naming it as an outcomeAs a primary outcomeSource
Stroop Color-Word Test20ConductCognition
Symbol Coding10ConductCognition

Data dates

The date of each source this release read.

Open Targets
2026-09-18
Open Targets
ClinicalTrials.gov
2026-11-05
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
Papers the trials list, from Trials
2026-11-12
Trials
Comparisons, from Trial comparisons
2026-03-23
Trial comparisons
Tests named in the trials, as ScienceGraph matched them
2026-11-12
ConductCognition

Sources 7

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ChEMBL, through Open TargetsCC BY-SA 3.0
  • ConductCognition's list of its testsOur own data
  • ClinicalTrials.govNo license stated
  • NLM's MeSHNLM's terms
  • Open TargetsCC0 1.0
  • PubMedNLM's terms
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ChEMBL, through Open TargetsCC BY-SA 3.0, for the parts from ChEMBL. Read on 8 Nov 2026 at https://platform-docs.opentargets.org/licence
  • ConductCognition's list of its testsOur own data: ConductCognition's list of its tests, https://conductcognition.com
  • ClinicalTrials.govnone stated
  • NLM's MeSHNLM's
  • Open TargetsCC0 1.0. Open Targets asks that users cite its latest paper: Buniello et al. 2025, Open Targets Platform: facilitating therapeutic hypotheses building in drug discovery, Nucleic Acids Research 53(D1):D1467, PMID 39657122. Read on 8 Nov 2026 at https://platform-docs.opentargets.org/licence
  • PubMedNLM's terms

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this drug from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/drugs/v1/CHEMBL596802

GET https://conductscience.org/api/drugs/v1/CHEMBL596802/targets