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CompletedNCT03347344ATRILUpdated Jun 21, 2021

Clinical Trial With Riluzole in Spinocerebellar Ataxia Type 2 (ATRIL)

A Phase 3 interventional study of Riluzole and Placebo in Spinocerebellar Ataxia Type 2, sponsored by Assistance Publique - Hôpitaux de Paris. Completed at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-06-21.

Sponsored by Assistance Publique - Hôpitaux de Paris · Phase 3, Interventional, and Treatment

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Phase
Phase 3
Study type
Interventional
Enrollment
42
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 13 studies in Spinocerebellar Ataxias with a site in France — 5 open to participants now, 7 under way, none of them phase 3. Spinocerebellar Ataxias · France.

Started
2018
the only one that year
Phase 3
Only one
of the 13
Registered
6th of 13
by date
Lead sponsor
3 of 13
Assistance Publique - Hôpitaux de Paris

Among the 13 studies in Spinocerebellar Ataxias with a site in France, this one is the only one that started in 2018, is the only one in phase 3, and was the 6th registered.

Spinocerebellar Ataxias

95 studies on the registry are indexed under Spinocerebellar Ataxias; 25 are open to participants now.

Browse Spinocerebellar Ataxias studies →

Open to participants now

5 of the 13 studies in Spinocerebellar Ataxias with a site in France are open now. Recruiting first, the newest first:

All 5 open studies →

A study can be open while its sites in France have not opened yet or have stopped. Only those recruiting at a site in France →

Who these studies take

Of the 16 Spinocerebellar Ataxias studies recruiting now, 8 (50%) set no upper age limit and 3 (19%) stop at 75 or younger; 4 take children under 18; 5 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

ATRIL is a multi-centric, double-blind randomized, two-arm controlled study. 42 SpinoCerebellar Ataxia type 2 (SCA2) patients, both gender, at least 18 years of age will be included.

Riluzole 50 mg will be administered (per os) twice a day, versus one group with placebo for 12 months.

Riluzole (Rilutek®) is a benzothiazole drug, market approved, for Amyotrophic Lateral Sclerosis (ALS). It delays the onset of ventilator-dependence or tracheostomy in selected patients and may increase survival.

Scale for the Assessment and Rating of Ataxia (SARA) will be used at M0, M6 and M12. To assess primary criterion, the percentage of patients with a decrease of at least 1 point of the SARA score between the inclusion visit, and Visit 3 (Months 12) will be calculated.

Read the detailed description

Inherited cerebellar ataxias are genetically heterogeneous neurological disorders. They are characterized by ataxic gait and cerebellar dysarthria that progresses over time with loss of ambulation and speech. The mutations by expansions of CAG triplets in the genes ATXN1 (SCA1), ATXN 2 (SCA2), 3 (SCA3), CACNA1A (SCA6), ATXN 7 (SCA7), and TBP (SCA17) are responsible for 50% of hereditary forms There is no curative or preventive treatment. This phase III study is a multi-centric, double-blind randomized, two-arm controlled study (one group with 50 mg Riluzole twice a day versus one group with placebo), to measure the efficacy of treatment with riluzole in SCA2 patients during 12 months. Amelioration is defined by a 1 point decrease of the SARA score.

03

Conditions studied

  • Spinocerebellar Ataxia Type 2

Keywords

  • Spinocerebellar ataxia-SCA2
  • SARA (Scale for the Assessment and Rating of Ataxia) score
  • Riluzole (Rilutek)
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Genetically diagnosed SCA2 (CAG triplet in ATXN2 ≥ 33)
  • At least 18 years of age
  • Signature of
  • Covered by social security
  • SARA score ≥ 5 and ≤ 26
  • Age at onset ≤ 50 years old

Exclusion criteria

Exclusion Criteria:

  • Treated with riluzole prior to the study
  • Hepatotoxic medication
  • to the active substance or to any of the
  • Serious systemic illnesses or conditions known for enhancing the side effects of riluzole
  • for MRI examination
  • Participation in another therapeutic trial (3 months exclusion period)
  • Pregnancy or breastfeeding
  • Non abstinence or absence of effective for women
  • Inability to understand information about the protocol
  • Persons deprived of their liberty by judicial or administrative decision
  • Adult subject under legal protection or unable to consent
  • Other ataxic syndromes than SCA2
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
42 participants (actual)

Study arms

  • Experimental
    RILUZOLE

    Riluzole PMCS 50 mg is presented as a round, biconvex, 8 mm diameter nearly white film-coated tablet. The tablets will be held under a blister of 20 tablets.

    Drug: Riluzole

  • Placebo comparator
    PLACEBO

    The placebo PMCS 50 mg is presented as a round, biconvex, 8 mm diameter nearly white film-coated tablet matching the appearance of the Riluzole used in this study

    Drug: Placebo

Interventions

  • 50 mg will be administered (per os) twice a day

  • DrugPlacebo

    50 mg will be administered (per os) twice a day

06

What researchers measure

Primary outcomes

  1. Change in Ataxia symptoms (Scale for the Assessment and Rating of Ataxia (SARA))

    To compare the proportion of patients with Scale for the Assessment and Rating of Ataxia (SARA) improvement (decrease) of at least one point from baseline to 12 months

    Time frame: at 12 months.

Secondary outcomes

  1. Change in Ataxia symptoms (Composite Cerebellar Functional Severity (CCFS) score)

    To compare the difference of the CCFS score (Composite Cerebellar Functional Severity Score) from baseline at 12 months. A decrease is expected in the intervention group.

    Time frame: at 12 months

  2. Change in extracerebellar symptoms (Inventory of Non-Ataxia Signs (INAS))

    To compare the difference of the extracerebellar symptoms (INAS, Inventory of Non-Ataxia Signs) by showing decrease in the INAS count from baseline at 12 months

    Time frame: at 12 months

  3. 12 months survival

    To compare survival of the patients between the two treatment groups at 12 months

    Time frame: at 12 months

07

Study locations

1 site
  • Durr
    Paris, 75013, France
08

References and documents

Publications

  • Coarelli G, Heinzmann A, Ewenczyk C, Fischer C, Chupin M, Monin ML, Hurmic H, Calvas F, Calvas P, Goizet C, Thobois S, Anheim M, Nguyen K, Devos D, Verny C, Ricigliano VAG, Mangin JF, Brice A, Tezenas du Montcel S, Durr A. Safety and efficacy of riluzole in spinocerebellar ataxia type 2 in France (ATRIL): a multicentre, randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2022 Mar;21(3):225-233. doi: 10.1016/S1474-4422(21)00457-9. Epub 2022 Jan 18. PubMed 35063116 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2018 to primary completion in Dec 2020, 34 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 21, 2017
First posted
Nov 20, 2017
StartActual
Jan 17, 2018
Primary completionActual
Dec 14, 2020
CompletionActual
Dec 14, 2020
Last update
Jun 21, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 21, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03347344
Responsible party
Sponsor
First posted
Nov 20, 2017
Start date
Jan 17, 2018
Primary completion
Dec 14, 2020
Completion
Dec 14, 2020
Last update
Jun 21, 2021

Study contacts

DURR Alexandra, PU-PH
principal investigator · ASSISTANCE PUBLIQUE HÖPITAUX DE PARIS

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2021. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Riluzole

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