Gene therapy targets Alzheimer's in High-Risk group
NCT ID NCT03634007
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial tested a gene therapy called LX1001 in 15 people with Alzheimer's who have two copies of the APOE4 gene, a high-risk form. The therapy delivers a healthy APOE2 gene to try to change the course of the disease. The main goal was to check safety and side effects over 52 weeks.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- LX1001 (a gene therapy that delivers a healthy APOE2 gene)
- What this could lead to
- If it works, this could point toward a treatment that slows or modifies Alzheimer's progression in people with two copies of the APOE4 gene.
- What could go wrong
- This is a very early, small safety trial with only 15 participants. It may not show clear benefit, and gene therapy carries risks like immune reactions or inflammation.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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15 people
The number who actually took part.
- Started
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Nov 2019
- Finished
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Nov 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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50 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * APOE4 homozygotes * Willing and able to provide informed consent (or consent provided by a legally authorized representative) * Clinical diagnosis of mild cognitive impairment due to Alzheimer's disease or mild to moderate dementia due to Alzheimer's disease * Evidence of CSF biomarkers consistent with Alzheimer's disease * Serum neutralizing anti-AAVrh10 titer \<1:100 * No evidence of active infection of any type, including hepatitis virus (A, B, or C) or human immunodeficiency virus (HIV-1 and HIV-2) * Fertile or infertile individuals; it will be recommended that fertile individuals utilize barrier birth control measures to prevent pregnancy for the duration of the study * Individuals not receiving experimental medications or participating in another experimental protocol for at least 4 weeks prior to entry into the study * Participants who agree not to post their personal data related to the study on social media. Exclusion Criteria: * Individuals receiving systemic immunosuppressant or corticosteroid therapy other than protocol-specified, are receiving a monoclonal anti-amyloid therapy (example, Aduhelm™ (aducanumab), Leqembi™ (lecanemab-irmb) or unable to wash out from anti-coagulant medications. * Individuals who do not fit the American Journal of Neuroradiology recommendations for image-guided spinal procedures * Presence of other significant medical, psychiatric, or neurological conditions may disqualify the participant from participation in this study, particularly those which would create an unacceptable risk of receiving the LX1001-01 vector, for example, malignancy, heart failure, liver or renal failure, or HIV positive. * Elevated white blood cell count, temperature \>38.5° C, infiltrate on chest x-ray. Note: Repeat of these examinations during the screening period is permitted to confirm eligibility * Prior or concurrent participation in any gene and/or cell therapy * Any condition, disorder, or abnormal laboratory test findings at screening which, in the judgment of the investigator, would interfere with the individual's ability to comply with all study requirements or would require the administration of treatment during the study that could potentially affect the interpretation of the study data, or would place the individual at unacceptable risk by his/her participation in the study * Individuals who cannot participate in magnetic resonance imaging, amyloid and tau PET scans, and CSF studies * Individuals who cannot undergo study-related procedures without general anesthesia (other than who need general anesthesia for the gene therapy administration) * More than 4 cerebral microhemorrhages (regardless of their anatomical location or diagnostic characterization as "possible" or "definite"), a single area of superficial siderosis, or evidence of a prior macro hemorrhage on screening MRI * Individuals with a history of clinically significant hypersensitivity or contraindication as judged by the investigator, to any component of the study drug formulation or to any drugs used in this study (examples are corticosteroids and proton-pump inhibitors) * Are pregnant or nursing
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Duke University
Durham, North Carolina, 27708, United States
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K2 Medical Research
Maitland, Florida, 32751, United States
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PPD- Orlando Research Unit
Orlando, Florida, 32806, United States
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Weill Cornell Medicine
New York, New York, 10021, United States
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