Clinical trial Recruiting at 2 sites Phase 2 Interventional Ages 18 to 85

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

PhasePhase 2
Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment50 (estimated)
SponsorBioprojet
Academic / other
Locations14 sites (Amiens and 13 other locations)
StatusRecruiting
StartedSeptember 17, 2025
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedDecember 16, 2025
Trial IDNCT07074002 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

  • 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
  • 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

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.