# PRidopidine's Outcome On Function in Huntington Disease, PROOF- HD

> **NCT04556656** · PHASE3 · COMPLETED · sponsor: **Prilenia** · enrollment: 499 (actual)

## Conditions studied

- Huntington Disease

## Interventions

- **DRUG:** Pridopidine
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04556656
- **Lead sponsor:** Prilenia
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-10-16
- **Primary completion:** 2023-03-14
- **Final completion:** 2024-03-21
- **Target enrollment:** 499 (ACTUAL)
- **Last updated:** 2025-03-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04556656

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04556656, "PRidopidine's Outcome On Function in Huntington Disease, PROOF- HD". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT04556656. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*