Could a diabetes injection help early Parkinson's patients?

NCT ID NCT03439943

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed Phase 2 trial tested whether lixisenatide, a daily injection already used for diabetes, could slow the worsening of motor symptoms in 156 people with early Parkinson's disease. Participants received either the drug or a placebo for 12 months, alongside their usual Parkinson's medications. The study measured changes in movement disability to see if lixisenatide has a disease-modifying effect.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

lixisenatide (a daily injection used for diabetes, repurposed for Parkinson's)

What this could lead to

If successful, this could point toward a treatment that slows the worsening of movement problems in early Parkinson's disease.

What could go wrong

This is a small, early-stage (Phase 2) proof-of-concept trial, so results may not confirm benefit. The drug can cause nausea and other side effects, and it is not a cure.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Parkinson disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CHU Toulouse

    Toulouse, 31000, France

  • Creteil- Henri Mondor Hospital

    Créteil, France

  • Pitié Salpêtrière Hospital

    Paris, France

  • University Hospital of Amiens

    Amiens, France

  • University Hospital of Besancon

    Besançon, France

  • University Hospital of Bordeaux

    Bordeaux, France

  • University Hospital of Caen

    Caen, France

  • University Hospital of Clermont-Ferrand

    Clermont-Ferrand, France

  • University Hospital of Lille

    Lille, France

  • University Hospital of Limoges

    Limoges, France

  • University Hospital of Lyon

    Lyon, France

  • University Hospital of Marseille

    Marseille, France

  • University Hospital of Montpellier

    Montpellier, France

  • University Hospital of Nancy

    Nancy, France

  • University Hospital of Nantes

    Nantes, France

  • University Hospital of Nice

    Nice, France

  • University Hospital of Poitiers

    Poitiers, France

  • University Hospital of Rennes

    Rennes, France

  • University Hospital of Rouen

    Rouen, France

  • University Hospital of Strasbourg

    Strasbourg, France