Testing LY4256984 against a placebo for ALS (amyotrophic lateral sclerosis)
Official title: A Study of LY4256984 in Participants With Sporadic Amyotrophic Lateral Sclerosis
A Multiple Ascending Dose Phase 1 Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Intrathecally Administered LY4256984 in Participants With Sporadic Amyotrophic Lateral Sclerosis
Interventions
LY4256984
Administered IT
Placebo
Administered IT
Canadian Sites (5)
Heritage Medical Research Clinic
Calgary, Canada
Walter Mackenzie Health Sciences Centre
Edmonton, Canada
London Health Sciences Centre
London, Canada
Montreal Neurological Institute and Hospital
Montreal, Canada
Sunnybrook Research Institute
Toronto, Canada
Eligibility Criteria
See who this study is looking for9 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Have a definite, possible, or probable diagnosis of sporadic amyotrophic lateral sclerosis (ALS) made by a physician experienced with the management of ALS
- +ALS symptom onset as determined by the InvestigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more → within 24 months of ScreeningScreeningThe checks done before joining, to see whether a study fits.Read more →
- +Have a body mass index (BMI) within the range of greater than or equal to 18.0 and less than or equal to 35.0 kilogram per square meter (kg/m²) (inclusive)
Exclusion
- −Have a history or presence of medical illness including, but not limited to, any cardiovascular, renal, hepatic, gastrointestinal, respiratory, hematological, endocrine, psychiatric, or neurological disease, convulsions, or any clinically significant laboratory abnormality
- −Have a history of another neurodegenerative disease or significant dementia/severe cognitive problems
- −Have serum alanine aminotransferase (ALT), aspartate transferase (AST), or total bilirubin levels greater than 2 x upper limit of normal.
- −Have a significant renal impairment (estimated glomerular filtration rate \<60 milliliters per minute \[mL/min\]/1.73 m²).
- −Have a 12-lead electrocardiogram (ECG) abnormality at screeningScreeningThe checks done before joining, to see whether a study fits.Read more →, in the opinion of the investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more →, that increases the risks associated with participating in the study
- −Show clinically significant abnormalities in lumbar spine previously known or determined by screening lumbar X-ray or fluoroscopy (if performed)
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is investigating how something functions in the body, rather than testing a treatment directly.
Phase 1Phase 1The earliest stage of human testing, in a small group, focused on safety.Read more → — an early safety study in a small group, checking how it is tolerated and at what dose.
What is being given or done in this study: LY4256984, PlaceboPlaceboA dummy treatment with no active medicine, used for comparison.Read more →.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
- armsInterventionsModule.interventions[].name
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
Neither you nor the study team would know which group you are in until the study ends.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
One group receives a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → — a dummy treatment with no active medicine in it.
There are 2 groups in this study.
From the trial registry
Built from this field:
- armsInterventionsModule.armGroups[].type
Who the study is looking for
The study lists an age range of 18 years to 75 years.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 32 people.
The study is currently expected to finish around September 2027.
The main measurement is taken over: BaselineBaselineYour starting measurements, taken before treatment begins.Read more → up to Approximately Day 253.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Number of Participants with One or More Treatment Emergent Adverse EventsAdverse eventAny medical problem that happens during a study, whether or not the treatment caused it.Read more → (TEAEs), Serious Adverse EventSerious adverse eventAn adverse event meeting a formal severity threshold, such as requiring hospital admission.Read more →(s) (SAEs), and Adverse Event(s) (AEs) Considered by the InvestigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more → to be Related to Study Drug Administration — measured over BaselineBaselineYour starting measurements, taken before treatment begins.Read more → up to Approximately Day 253.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT07100119 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About LY4256984Drug
Administered IT
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About PlaceboDrug
Administered IT
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: an age range of 18 years to 75 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
Yes. This study includes a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group — a dummy treatment with no active medicine in it.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
Neither you nor the study team would know which group you are in until the study ends.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists an age range of 18 years to 75 years.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: BaselineBaselineYour starting measurements, taken before treatment begins.Read more → up to Approximately Day 253.
The study as a whole is currently expected to finish around 2027-09.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 32 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 5 locations, including: Calgary, Canada; Edmonton, Canada; London, Canada; Montreal, Canada; Toronto, Canada.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
The purpose of this study is to evaluate how well LY4256984 is tolerated and what side effects may occur in participants with sporadic amyotrophic lateral sclerosis (ALS). The study drug will be administered intrathecally (IT) into the spine. Blood tests will be performed to check how much LY4256984 gets into the bloodstream and how long it takes the body to eliminate it.
Worth passing on?
Save it to the Care Package and send it to them, or to their doctor, in one message. Whether they follow it up is theirs to decide.
Review the Care PackageThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.