New spinal injection aims to tame Huntington's
NCT ID NCT06585449
First seen Jun 27, 2026 · Last updated Sep 17, 2026 · Updated 6 times
Summary
This early-stage study tests an experimental drug called ALN-HTT02 in 66 adults with Huntington's disease. The drug is given as a single injection into the spine to see if it is safe and how it affects the body. The goal is to reduce levels of the harmful protein that causes the disease, but this is not a cure—it aims to control the disease over time.
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
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 66 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2024
- Expected to finish
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Jul 2028
An estimate. End dates often move.
- 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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25 to 70 years
- 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 * Has stage 2 or early Stage 3 Huntington's disease (HD), per the Huntington's Disease Integrated Staging System (HD-ISS) Exclusion Criteria * Has significant structural or degenerative neurologic disease other than Huntington's Disease (HD) at screening * Has primary or secondary immune compromise at screening due to infections, medical conditions, or chronic therapies * Has alanine aminotransferase or aspartate aminotransferase \>2× upper limit of normal (ULN) * Has an estimated glomerular filtration rate (eGFR) of \<60 mL/min/1.73m\^2 at screening * Has received an investigational agent within the last 1 year or 5 half-lives (if known) Note: other protocol defined inclusion / exclusion criteria apply
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
19 sites in 3 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Clinical Trial Site
RECRUITINGEdmonton, T6G 2B7, Canada
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Clinical Trial Site
RECRUITINGMontreal, H2W 1T8, Canada
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Clinical Trial Site
RECRUITINGOttawa, K1Y4E9, Canada
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Clinical Trial Site
RECRUITINGVancouver, V6T 2B5, Canada
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Clinical Trial Site
RECRUITINGBerlin, 10117, Germany
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Clinical Trial Site
RECRUITINGBochum, 44791, Germany
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Clinical Trial Site
RECRUITINGBonn, 53127, Germany
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Clinical Trial Site
RECRUITINGDresden, 01307, Germany
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Clinical Trial Site
RECRUITINGMünster, 48149, Germany
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Clinical Trial Site
RECRUITINGTaufkirchen, 84416, Germany
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Clinical Trial Site
RECRUITINGUlm, 89081, Germany
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Clinical Trial Site
RECRUITINGBirmingham, B15 2TT, United Kingdom
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Clinical Trial Site
RECRUITINGCambridge, CB2 0PY, United Kingdom
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Clinical Trial Site
RECRUITINGCardiff, CF103AX, United Kingdom
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Clinical Trial Site
RECRUITINGGlasgow, G51 4TF, United Kingdom
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Clinical Trial Site
RECRUITINGGreater Manchester, M13 9WL, United Kingdom
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Clinical Trial Site
RECRUITINGLondon, WC1N 3BG, United Kingdom
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Clinical Trial Site
RECRUITINGOxford, OX3 9DU, United Kingdom
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Clinical Trial Site
RECRUITINGPlymouth, PL6 8DH, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Brain scan tracer could reveal hidden signs of psychosis in Parkinson's
- Hope for Huntington's: new drug aims to slow decline in major trial
- New hope for Huntington's patients: drug eases involuntary movements
- Experimental drug aims to curb disinhibition in dementia patients
- New drug SRP-1005 takes first step against Huntington's
- Can video games help Huntington's patients move and think better?