New drug SRP-1005 takes first step against Huntington's
NCT ID NCT07536061
First seen Jun 25, 2026 · Last updated Sep 04, 2026 · Updated 2 times
Summary
This study tests a new drug called SRP-1005 in 32 adults with Huntington's disease. It is the first time this drug is being tested in humans, so the main goal is to check safety and how the body processes the drug. Participants will receive either SRP-1005 or a placebo by injection under the skin.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- SRP-1005
- What this could lead to
- If this early trial shows safety, it could pave the way for a treatment that slows or controls Huntington's disease symptoms.
- What could go wrong
- This is a very early phase 1 study with only 32 participants, focused on safety and dosing. It is too soon to know if SRP-1005 will work, and side effects are unknown.
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 32 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Nov 2027
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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21 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.
Key Inclusion Criteria: * Genetically confirmed diagnosis of huntingtin (HTT) cytosine-adenine-guanine repeat length ≥40. * Participant has HD Integrated Staging System (HD-ISS) Stage 2 or Mild Stage 3. At screening, the participant must be classified with the Enroll-HD HD-ISS Modified Calculator as either Stage 2 or Mild Stage 3. * Participants who are of childbearing potential, or with partners of childbearing potential, who are sexually active must agree to use a highly effective method of contraception throughout study participation, and for at least 90 days following the end of study. Key Exclusion Criteria: * Any condition that would compromise the safety or feasibility of lumbar puncture or magnetic resonance imaging (MRI). * Presence of other significant neurological or systemic illnesses. * Current, chronic or active human immunodeficiency virus, hepatitis B/C. * Recent use of investigational agents or HTT-lowering therapies. * Uncontrolled psychiatric illness or substance use disorders. * Pregnancy or lactation. Note: Other 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
4 sites in 4 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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New Zealand Brain Research Institute
RECRUITINGChristchurch, 8014, New Zealand
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Siloah AG
RECRUITINGGümligen, Canton of Bern, 3073, Switzerland
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University Hospital of Wales
RECRUITINGCardiff, 3AT, United Kingdom
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Westmead Hospital
RECRUITINGWestmead, New South Wales, 2145, Australia
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Other studies related to the condition(s) this trial covers.
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- New hope for Huntington's patients: drug eases involuntary movements
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- New PET tracer aims to spot Huntington's protein clumps in living brains