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antisense oligonucleotide

Phase 3

Progressive Supranuclear Palsy (PSP) | RNA therapy | Neurology |Novartis AG|Trials Updated: Oct 9, 2026

antisense oligonucleotide development status

Highest phase Phase 3 (NCT07498426)
Phase scored for NVSPhase 1
Registered trials 4 across 1 sponsor since Sep 2020

antisense oligonucleotide target and mechanism

ModalityRNA therapy

Also known as NIO752

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials3
Total Enrollment145

FDA Designations

No designations recorded

antisense oligonucleotide clinical trials

antisense oligonucleotide · 3 trials · 7 indications

Phase 2 1Phase 1 2
NCT07868328A Study to Evaluate the Safety, Tolerability and Pharmacodynamics of NIO752 in Primary TauopathiesProgressive Supranuclear Palsy
NOT YET_RECRUITING48 Analytics
PHASE2NOT YET_RECRUITING
A Study to Evaluate the Safety, Tolerability and Pharmacodynamics of NIO752 in Primary Tauopathies
Progressive Supranuclear PalsyUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs) in double blind period
From first treatment administration up to week 48

Number of participants with TEAEs including SAEs, AESIs, and AEs leading to treatment interruption/discontinuation or dose reduction.

Change in cerebrospinal total tau from baseline to Day 85
Baseline, Day 85

Total tau protein levels in cerebrospinal fluid. More frequent timepoints might be added as deemed necessary per the site Investigator's judgment.

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

Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs) in open-label extension
From first treatment administration in OLE period up to week 96
Change from baseline in clinical laboratory evaluations
From baseline up to week 96
Change from baseline in vital signs
From baseline up to week 96
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
NIO752 - Cohort 1 (PSP non-RS)EXPERIMENTALNIO752 solution
Placebo - Cohort 1 (PSP non-RS)PLACEBO_COMPARATORPlacebo solution
NIO752 - Cohort 2 (CBS non-AD)EXPERIMENTALNIO752 solution
Placebo - Cohort 2 (CBS non-AD)PLACEBO_COMPARATORPlacebo solution
NIO752 - Cohort 3 (MAPT-FTLD)EXPERIMENTALNIO752 solution
Placebo - Cohort 3 (MAPT-FTLD)PLACEBO_COMPARATORPlacebo solution
NIO752 - Dose A - Cohort 1EXPERIMENTALA single intrathecal injection of Dose A
Matching placebo - Cohort 1PLACEBO_COMPARATORA single intrathecal injection of artificial cerebrospinal fluid (CSF)
NIO752 Dose B - Cohort 2EXPERIMENTALA single intrathecal injection of Dose B
Matching placebo - Cohort 2PLACEBO_COMPARATORA single intrathecal injection of artificial cerebrospinal fluid (CSF)
NIO752 OLE - Cohorts 1 and 2EXPERIMENTALMultiple intrathecal injections of Dose A
NIO752 - Dose C - Cohort 3EXPERIMENTALTwo intrathecal injections of Dose C
Matching Placebo - Cohort 3PLACEBO_COMPARATORTwo intrathecal injections of artificial cerebrospinal fluid (CSF)
NIO752 OLE - Cohort 3EXPERIMENTALSingle intrathecal injection of Dose C
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
NIO752DRUGAntisense Oligonucleotide Solution
PlaceboDRUGPlacebo solution
Matching placeboDRUGA single intrathecal injection of matching placebo
antisense oligonucleotideDRUGsolution of antisense oligonucleotide injected intrathecally (spine tap) at multiple dose levels
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Eligibility Criteria

Age Range41 Years to 81 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: Common across all cohorts: 1. Signed informed consent must be obtained prior to participation in the study. 2. Participants between the ages of ≥41 and ≤81 years. 3. Able to walk at least 10 steps with minimal assistance (stabilization of one arm or use of cane/walker). 4. Docu...

Countries:FinlandFranceSpainSwedenUnited StatesCanadaGermanyUnited Kingdom
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Recent Changes (Last 90 Days)

LOWOct 9, 2026NCT07868328NEW_TRIAL: changed
LOWOct 9, 2026NCT07868328NEW_TRIAL: changed
LOWSep 19, 2026NCT05469360lastUpdatePostDate: changed
LOWSep 19, 2026NCT05469360lastUpdatePostDate: changed
LOWSep 19, 2026NCT05469360lastUpdatePostDate: changed

Frequently asked questions about antisense oligonucleotide

What is the antisense oligonucleotide being developed by Novartis?

It is an investigational RNA therapy from Novartis AG (ticker NVS) being studied for Progressive Supranuclear Palsy (PSP), a neurological disorder. It is an antisense oligonucleotide, a type of RNA therapy designed to act on genetic messages inside cells. It remains in clinical development and is not an approved treatment.

What is the antisense oligonucleotide used for in Progressive Supranuclear Palsy?

It is being studied as a treatment for Progressive Supranuclear Palsy (PSP), a neurological condition. The clinical program enrolled adults aged 40 years and older with PSP across the United States, Canada, Germany, and the United Kingdom. It is investigational and has not been approved for PSP or any other indication.

Who is developing the antisense oligonucleotide for PSP?

Novartis AG, which trades under the ticker NVS, is the developer of this antisense oligonucleotide for Progressive Supranuclear Palsy. The company sponsored the Phase 1 clinical program evaluating the drug in adults with PSP. Novartis is a large pharmaceutical company with operations in neurology and other therapeutic areas.

What phase is the antisense oligonucleotide in for PSP?

It is in Phase 1 development for Progressive Supranuclear Palsy. The single Phase 1 trial, NCT04539041, has been completed, and no trials are currently listed as active. The drug is investigational and has not received FDA approval for PSP or any other condition.

What clinical trial has been run for the antisense oligonucleotide in PSP?

One Phase 1 trial has been conducted: NCT04539041, titled Safety, Tolerability and Pharmacokinetics of Multiple Ascending Doses of NIO752 in Progressive Supranuclear Palsy. It was a randomized, double-blind, placebo-controlled study that enrolled 59 participants across the United States, Canada, Germany, and the United Kingdom. The trial is completed.

Is the antisense oligonucleotide the same as NIO752?

Yes. NIO752 is the trial code name used for this antisense oligonucleotide in its Phase 1 study in Progressive Supranuclear Palsy. The completed trial, NCT04539041, evaluated multiple ascending doses of NIO752 in adults with PSP. Searches for NIO752 refer to the same investigational Novartis RNA therapy.