Clinical trial Recruiting at 16 sites Phase1; Phase2 Interventional Ages 18 to 75

Gene therapy for adults with refractory mesial temporal lobe epilepsy

Official title: A Multi-center, Phase 1/2a, First-in-human (FIH) Study Investigating the Safety, Tolerability, and Efficacy of AMT-260 in Adults With Unilateral Refractory Mesial Temporal Lobe Epilepsy (MTLE) Administered Via Magnetic Resonance Imaging (MRI)-Guided Convection-enhanced Delivery (CED)

Run by UniQure Biopharma B.V. · NCT06063850 · Data updated 2026-11-12

This study is testing a new gene therapy called AMT-260 to see if it can help adults with a type of epilepsy called mesial temporal lobe epilepsy by reducing their seizures.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment12 (estimated)
SponsorUniQure Biopharma B.V.
Industry-sponsored
Locations18 sites (Birmingham, Alabama and 17 other locations)
StatusRecruiting
StartedJune 12, 2024
Main results expectedNovember 30, 2026
Study endsDecember 2031
Registry record updatedAugust 24, 2026
Trial IDNCT06063850 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults with a diagnosis of unilateral refractory mesial temporal lobe epilepsy who have a history of frequent seizures despite treatment.

Probably not a fit

Patients with implanted devices contraindicating MRI or those without a confirmed unilateral seizure focus may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical study aims to evaluate the safety, tolerability, and efficacy of AMT-260, a gene therapy, in reducing seizure frequency in adults diagnosed with unilateral mesial temporal lobe epilepsy (MTLE). Participants will receive one of two dose levels of AMT-260, with no placebo involved, and will be closely monitored through site visits, phone calls, blood tests, and questionnaires. The study will also involve participants recording their seizures using an electronic diary to assess the impact on their daily lives.

Why it matters

Potential benefit: If successful, this gene therapy could significantly reduce seizure frequency and improve the quality of life for patients with refractory MTLE.

How similar studies have gone: While gene therapy approaches for epilepsy are emerging, this specific application of AMT-260 is novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of unilateral refractory MTLE
* History of seizures with an average of ≥ 2 documented focal impaired awareness seizures or focal to bilateral tonic-clonic seizures per 30-day period over the 3 month Retrospective Period.
* On a stable type and dose regimen of up to a maximum of 4 approved Anti Seizure Drugs for at least 1 month prior to the Retrospective Period.
* Confirmed unilateral hippocampal pathology and concordant unilateral seizure focus
* No evidence of focal neurocognitive dysfunction, inconsistent with disease pathology- related MRI and/or (18F)FDG-PET findings.
* Women of childbearing potential (WOCBP) and fertile male subjects must be willing and able to use highly effective methods of birth control consistently and correctly throughout the study.
* For WOCBP only: Negative pregnancy test.

Exclusion Criteria:

* Implanted devices that would contraindicate MRI; MRI-compatible devices must be implanted ≥3 months prior to Screening (vagus nerve stimulation devices will be up to discretion of the Investigator).
* Any other contraindications to general anesthesia, surgery, or intra-operative magnetic resonance imaging (MRI).
* Medications that could confound clinical (e.g., antipsychotic medication and anti-viral therapy) and laboratory evaluations or could affect a participant's safety or their ability to undergo the neurosurgical procedure or comply with the procedures and study visit schedule.
* Bilateral or multifocal epilepsy; or inability to confidently lateralize seizure onset.
* Dementia or other progressive neurological disorders and progressive brain lesions.
* Previous major disease-unrelated neurosurgical intervention due to intracranial tumor, trauma, or bleeding and/or history of previous intracranial surgery for treatment of epileptic seizures, not including diagnostic stereo-EEG.
* MRI evidence of epileptogenic, extra-temporal lesions, or dual temporal lobe pathology.
* Status epilepticus within the year prior to Screening.

Where it's running

  • University of Alabama at Birmingham
    Birmingham, Alabama, United States
    Recruiting
  • Mayo Clinic Arizona
    Phoenix, Arizona, United States
    Recruiting
  • Mayo Clinic Florida
    Jacksonville, Florida, United States
    Recruiting
  • Kansas University Medical Center
    Kansas City, Kansas, United States
    Recruiting
  • Johns Hopkins School of Medicine
    Baltimore, Maryland, United States
    Recruiting
  • Massachusetts General Hospital
    Boston, Massachusetts, United States
    Recruiting
Show 12 more locations
  • Corewell Health
    Grand Rapids, Michigan, United States
    Recruiting
  • Dartmouth Hitchcock Medical Center
    Lebanon, New Hampshire, United States
    Recruiting
  • Northeast Regional Epilepsy Group
    Hackensack, New Jersey, United States
    Recruiting
  • Robert Wood Johnson Hospital
    New Brunswick, New Jersey, United States
    Recruiting
  • Cleveland Clinic
    Cleveland, Ohio, United States
    Recruiting
  • Ohio State University
    Columbus, Ohio, United States
    Recruiting
  • Hospital of the University of Pennsylvania
    Philadelphia, Pennsylvania, United States
    Recruiting
  • Allegheny Health Network
    Pittsburgh, Pennsylvania, United States
    Recruiting
  • Baylor Scott & White Medical Center
    Austin, Texas, United States
    Recruiting
  • Medical College of Wisconsin
    Milwaukee, Wisconsin, United States
    Recruiting
  • Stanford University
    Palo Alto, California, United States
    Completed
  • Midatlantic Epilepsy and Sleep Center
    Bethesda, Maryland, United States
    Completed

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Using Deep Brain Stimulation to Preserve Memory in Epilepsy

    This study is testing whether a new brain stimulation technique can help people with Mesial Temporal Lobe Epilepsy have fewer seizures and better memory.

    Recruiting at 2 sites The University of Texas Health Science Center, Houston · Rochester, Minnesota and 1 other locations · NCT05608408

  • Neural cell therapy for drug-resistant epilepsy

    This study is testing a new treatment that involves injecting special nerve cells into the brains of people with hard-to-treat epilepsy to see if it can help reduce their seizures.

    Recruiting at 36 sites Phase 3 Neurona Therapeutics · Birmingham, Alabama and 35 other locations · NCT05135091

  • Gene therapy for classic Fabry disease

    This study is testing a new gene therapy called AMT-191 to see if it can help people with classic Fabry disease by improving their enzyme levels and overall health.

    Recruiting at 10 sites Phase 1/2 UniQure Biopharma B.V. · Birmingham, Alabama and 9 other locations · NCT06270316

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.