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antisense oligonucleotide

Phase 1

Progressive Supranuclear Palsy (PSP) | Small molecule | Neurology |Novartis AG|Last Updated: Dec 24, 2025

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment59

FDA Designations

No designations recorded

Clinical trial landscape

antisense oligonucleotide · 1 trial · 1 indication

Phase 1 1
NCT04539041Safety, Tolerability and Pharmacokinetics of Multiple Ascending Doses of NIO752 in Progressive Supranuclear PalsyProgressive Supranuclear Palsy (PSP)
COMPLETED59 Analytics
PHASE1COMPLETED
Safety, Tolerability and Pharmacokinetics of Multiple Ascending Doses of NIO752 in Progressive Supranuclear Palsy
Progressive Supranuclear Palsy (PSP)Unlock trial analytics

Study Endpoints

Primary Endpoints

Number of adverse events and serious adverse events
Baseline up to approximately one year (3-month treatment plus 9-month follow-up or 9-month treatment plus 3-month follow-up)

Adverse events will be collected at clinical visits and other contacts. All abnormalities from safety assessments (physical exams and neurological exams and clinical safety labs) considered clinically significant will be recorded as adverse events

Change in severity scores for Columbia-Suicide Severity Rating Scale (C-SSRS)
Baseline up to approximately 1 year (3-month treatment plus 9-month follow-up or 9-month treatment plus 3-month follow-up)

The Columbia-Suicide Severity Rating Scale (C-SSRS) is a questionnaire that prospectively assesses Suicidal Ideation and Suicidal Behavior. The C-SSRS must be administered at visits. If, at any time after "screening and/or baseline" version, the score is "yes" on item 4 or item 5 of the Suicidal Ideation section of the C-SSRS or "yes" on any item of the Suicidal Behavior section, the participant must be referred to a mental health care professional for further assessment and/or treatment.

Levels of infection indicators in Cerebrospinal fluid (CSF)
Baseline up to approximately 1 year (3-month treatment plus 9-month follow-up or 9-month treatment plus 3-month follow-up)

CSF safety labs measure levels of proteins, glucose, lactate and white blood cell counts with differential indicating infections.

Secondary Endpoints

Concentrations of NIO752 in blood plasma
From the 1st dose administration (day 1), through study completion, where the longest duration would be approximately 1 year for those who receive 4 treatment doses
Concentrations of NIO752 in CSF
From the 1st dose administration (day 1), through study completion, where the longest duration would be approximately 1 year for those who receive 4 treatment doses
Cmax, Ctrough in blood plasma
From the 1st dose administration (day 1), through study completion, where the longest duration would be approximately 1 year for those who receive 4 treatment doses
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort A NIO752EXPERIMENTAL4 injections of NIO752 at dose A
Cohort B NIO752EXPERIMENTAL4 injections of NIO752 at dose B
PlaceboPLACEBO_COMPARATOR4 injections of placebo
Cohort C NIO752EXPERIMENTAL4 injections of NIO752 at dose C
Cohort D NIO752EXPERIMENTAL4 injections of NIO752 at dose D
Cohort E NIO752EXPERIMENTAL4 injections of NIO752 at dose E

Interventions

NameTypeDescription
antisense oligonucleotideDRUGsolution of antisense oligonucleotide injected intrathecally (spine tap) at multiple dose levels
placeboDRUGplacebo for each dose level
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Eligibility Criteria

Age Range40 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites12

Inclusion Criteria: 1. Signed informed consent 2. Between 40 to 75 years old (inclusive) 3. Have PSP diagnosed for less than 5 years with a current classification of probable PSP Richardson syndrome, a progressive supranuclear palsy rating scale (PSPRS) score \< 40 and MOCA score \>17 at screening ...

Countries:United StatesCanadaGermanyUnited Kingdom
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Frequently asked questions about antisense oligonucleotide

What is NIO752 used for?

NIO752 is an investigational antisense oligonucleotide being developed for Progressive Supranuclear Palsy (PSP), a rare neurological disorder. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

How does NIO752 work?

NIO752 is an antisense oligonucleotide, a type of small molecule that is designed to target and modulate the production of specific proteins involved in the pathology of Progressive Supranuclear Palsy. The exact molecular target has not been disclosed.

Who is developing NIO752?

NIO752 is being developed by Novartis AG (NYSE: NVS), a global pharmaceutical company. The drug is currently in Phase 1 clinical trials for Progressive Supranuclear Palsy.

What phase is NIO752 in?

NIO752 is in Phase 1 clinical development. A Phase 1 trial has been completed, and the drug remains investigational, meaning it has not yet received regulatory approval for any use.

What clinical trials has NIO752 been in?

NIO752 has been studied in one completed Phase 1 trial, NCT04539041, which assessed the safety, tolerability, and pharmacokinetics of multiple ascending doses in patients with Progressive Supranuclear Palsy. The trial enrolled 59 participants across the United States, Canada, Germany, and the United Kingdom.

Is NIO752 the same as antisense oligonucleotide?

NIO752 is an antisense oligonucleotide, which is a class of therapeutic molecules. The drug itself is referred to as NIO752 in clinical trials, and no other alternative names have been reported.