BP1.4979 to reduce essential tremor.
Official title: A Multicentre, Randomised, Double-blind, Placebo-controlled, Parallel-group Trial to Evaluate the Efficacy and Safety of BP1.4979 in Adult Patients With Essential Tremor
Run by Bioprojet · NCT07074002 · Data updated 2026-11-12
See if BP1.4979, taken twice daily for four weeks, reduces tremors and is safe in adults with essential tremor.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 85 Years |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Bioprojet Academic / other |
| Locations | 14 sites (Amiens and 13 other locations) |
| Status | Recruiting |
| Started | September 17, 2025 |
| Main results expected | December 2026 |
| Study ends | December 2026 |
| Registry record updated | December 16, 2025 |
| Trial ID | NCT07074002 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18–85 with a confirmed diagnosis of essential tremor for at least three years and a qualifying TETRAS-P score (≥1.5 in specified upper-limb tests), who meet the study’s safety and contraception requirements, are ideal candidates.
✕Probably not a fit
People with very severe tremor (TETRAS-P ≥3 in the specified tests), those unable to attend the French study sites, or with medical contraindications are unlikely to benefit from this trial.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, double-blind, placebo-controlled Phase 2 trial tests BP1.4979, a drug acting on the dopamine pathway, in adults with essential tremor. Eligible participants aged 18–85 with confirmed ET and specific TETRAS-P scores will be randomized to BP1.4979 or matching placebo and will take the study medication twice daily for four weeks. The protocol includes five clinic visits over about 7–10 weeks, weekly diaries about daily impact, standardized tremor ratings (including TETRAS-P), and regular safety and tolerability monitoring. Outcomes will compare changes in tremor severity and adverse events between the active and placebo groups.
Why it matters
Potential benefit: If successful, BP1.4979 could reduce tremor severity and improve daily functioning for people with essential tremor.
How similar studies have gone: Drugs targeting dopamine receptors have shown benefits in related movement disorders such as Parkinson’s disease, but dopamine-targeted treatments for essential tremor remain relatively novel with limited proof-of-concept data.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or female ≥18-85 years old * Confirmed diagnosis of ET, characterized by meeting the following criteria: (a) the presence of a bilateral upper limb action tremor that occurs in isolation; (b) a minimum duration of 3 years; and (c) the tremor may or may not be present in other areas such as the voice, or lower limbs * ET characterized by a TETRAS-P score of at least 1.5 in either the forward posture, wing beating posture, or finger-to-nose movement of at least one upper extremity * Female patient: post-menopausal woman having at least 12 months of natural amenorrhea without any alternative medical cause, or woman of childbearing potential using a highly effective method of contraception for the duration of the trial and for 1 month after stopping the investigational medication Exclusion Criteria: * Severe tremor, defined as patient with ET characterized by a TETRAS-P score of ≥ 3 in either the forward posture, wing beating posture, or finger-to-nose movement of at least one upper extremity, or tremor of trunk * Isolated head tremor not accompanied with tremor of any other body part * Medical history or clinical evidence of any other conditions, whether medical, neurological, or psychiatric, that could potentially explain or contribute to the presence of tremors * Patient who takes a medication which may induce tremor * Direct or indirect injury or trauma to the nervous system within 3 months before the onset of tremor * Concomitant treatment with more than three drugs to treat ET * Any prior procedures for the treatment of ET such as deep brain stimulation, brain lesioning, or magnetic resonance (MR)-guided procedures, including MR-guided focused ultrasound
Where it's running
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Hospices Civils De Lyon Hôpital Neurologique Pierre Wertheimer
Bron, France Recruiting -
CHU Purpan - Bâtiment Pierre Paul Riquet
Toulouse, France Recruiting -
CHU Amiens-Picardie
Amiens, France Active not recruiting -
CHU Besançon
Besançon, France Not yet recruiting -
CHU de Clermont-Ferrand - Hôpital Gabriel Montpied
Clermont-Ferrand, France Active not recruiting -
CHU Henri Mondor
Créteil, France Active not recruiting
Show 8 more locations
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CHU de Lille - Hôpital Roger SALENGRO
Lille, France Active not recruiting -
Centre Hospitalier Régional De Marseille - Hôpital de la Timone
Marseille, France Active not recruiting -
CHRU Nancy - Hôpital Central
Nancy, France Active not recruiting -
CHU de Nice - Hôpital Pasteur 2
Nice, France Active not recruiting -
CHU de Nîmes
Nîmes, France Active not recruiting -
CHU Poitiers
Poitiers, France Active not recruiting -
CHU Rennes - CHU Pontchaillou
Rennes, France Active not recruiting -
Hôpitaux Universitaires de Strasbourg - Hôpital de Hautepierre
Strasbourg, France Not yet recruiting
Study contacts
- Principal investigator: David Devos Coordinating Investigator, Pr — CHU de Lille
- Study coordinator: Study Medical Director
- Email: a.karapet@bioprojet.com
- Phone: + 33 6 63 47 43 14
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Encora X1 in Daily Life for Essential Tremor
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Microelectrode-based brain stimulation for Parkinson’s and essential tremor
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Non-Invasive Nerve Stimulation for Essential Tremor: Long-Term Safety and Effectiveness
This study tests whether a non-invasive stimulation device called TAPS helps reduce tremor in adults with essential tremor over a long period.
-
Low Intensity Focused Ultrasound for Essential Tremor in Adults
This early-stage, open-label study tests whether repeated low-intensity focused ultrasound can safely and briefly modulate tremor in people with essential tremor.
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Closed-loop TMS to reduce tremor
This trial tries phase-locked transcranial magnetic stimulation (TMS) to reduce tremor in people with essential tremor or Parkinson's disease.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.