Recruiting at 56 sites Phase 3 Amyotrophic Lateral Sclerosis

Amyotrophic Lateral Sclerosis study: Pridopidine

Official title Pridopidine Phase 3 Study to Evaluate Efficacy and Safety in ALS

ClinicalTrials.gov ID: NCT07322003

What this study is testing

What is Pridopidine?

This is an investigational pill being studied to see if it can slow the progression of amyotrophic lateral sclerosis (ALS). is designed to block dopamine receptors in the brain to help manage movement-related symptoms.

Plain-language explanation of the investigational treatment. It is being studied and is not an approved or proven therapy. The study team can confirm the details.

What it's testing
The study will see if pridopidine can slow the progression of ALS and check its safety.
Who it's for
Adults with amyotrophic lateral sclerosis
What's involved
Participants take either pridopidine or a placebo by mouth daily for 48 weeks, then all receive pridopidine for another 48 weeks, with clinic visits every 1–3 months for check‑ups and tests.
Time commitment
The study lasts 96 weeks (about 2 years) with clinic visits every 1–3 months.
  • Phase 3: a large, late-stage study
  • You might receive a placebo (an inactive treatment) instead of the study drug, decided by chance. You may not know which one you got.

A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.

Who can take part

Ages 18 to 80

You may be able to join if

  • Definite ALS or Probable ALS using the El Escorial criteria.
  • Symptom onset of ≤18 months at screening.
  • Slow vital capacity (SVC) greater or equal to 60% predicted.
  • Treatment Research Initiative to Cure ALS (TRICALS) Risk Profile Calculator score, based on the European Network for the Cure of ALS (ENCALS)...
  • Able to swallow a capsule. Key

You likely can't join if

  • Presence of tracheostomy or permanent assisted ventilation.
  • Clinically significant heart disease, clinically significant history of arrhythmia, symptomatic or uncontrolled atrial fibrillation despite...
  • Presence of unstable psychiatric disease, cognitive impairment, dementia or substance abuse that would impair ability of the participant to provide...
  • Clinically significant and/or unstable medical condition (other than ALS) that may either pose a clinically meaningful risk to the participant and/or...
  • Use of medications that prolong QT interval.
  • Previous treatment with pridopidine, gene therapy, or antisense oligonucleotides.
See the full eligibility criteria
Who can join
  • Definite ALS or Probable ALS using the El Escorial criteria.
  • Symptom onset of ≤18 months at screening.
  • Slow vital capacity (SVC) greater or equal to 60% predicted.
  • Treatment Research Initiative to Cure ALS (TRICALS) Risk Profile Calculator score, based on the European Network for the Cure of ALS (ENCALS) survival prediction model, in the range of -6 to -2, inclusive, at screening.
  • Able to swallow a capsule. Key
What rules you out
  • Presence of tracheostomy or permanent assisted ventilation.
  • Clinically significant heart disease, clinically significant history of arrhythmia, symptomatic or uncontrolled atrial fibrillation despite treatment, or asymptomatic sustained ventricular tachycardia, or presence of...
  • Presence of unstable psychiatric disease, cognitive impairment, dementia or substance abuse that would impair ability of the participant to provide informed consent and participate in the study.
  • Clinically significant and/or unstable medical condition (other than ALS) that may either pose a clinically meaningful risk to the participant and/or to study completion.
  • Use of medications that prolong QT interval.
  • Previous treatment with pridopidine, gene therapy, or antisense oligonucleotides.
  • Confirmed mutation in the SOD1, FUS or C9orf72 gene.
  • Pregnancy.

The study team makes the final eligibility decision.

Where it is enrolling

  • Phoenix, Arizona, United States
  • San Francisco, California, United States
  • Aurora, Colorado, United States
  • Jacksonville, Florida, United States
  • Tampa, Florida, United States
  • Atlanta, Georgia, United States
  • Chicago, Illinois, United States
  • Fairway, Kansas, United States
  • Baltimore, Maryland, United States
  • Boston, Massachusetts, United States
  • St Louis, Missouri, United States
  • Lincoln, Nebraska, United States
  • New York, New York, United States
  • Philadelphia, Pennsylvania, United States
  • Dallas, Texas, United States
  • Houston, Texas, United States
  • Seattle, Washington, United States
  • Leuven, Belgium
  • Montreal, Quebec, Canada
  • Edmonton, Canada

+ 32 more site(s).

Questions & answers

Do participants get paid in this trial?

This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.

Is it free to join, and do I need insurance?

Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part, but confirm specifics with the study team.

How long does this study last?

The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.

Who can join this trial?

This study is enrolling all sexes, 18 years to 80 years. The study team makes the final eligibility decision.

Where is this trial taking place?

This study is enrolling now at Phoenix, Arizona, United States; San Francisco, California, United States; Aurora, Colorado, United States; Jacksonville, Florida, United States; Tampa, Florida, United States; Atlanta, Georgia, United States and 46 more locations. Enter your location above to see the nearest enrolling site and check your eligibility.

Explore other conditions

BridgeMD is an information and trial-matching tool that is independent of the study sponsor. Details come from ClinicalTrials.gov. The study team decides eligibility, and your own doctor gives medical advice.