Investigation of Individualised Antisense Oligonucleotides (ASOs) in People With Unique Genetic Variants Causing Severely Debilitating, Life Threatening (SDLT) Central Nervous System (CNS) Conditions (EOM-MP1)

March 16, 2026 updated by: EveryONE Medicines Inc.

Investigation of Individualised Antisense Oligonucleotides (ASOs) in People With Unique Genetic Variants Causing Severely Debilitating, Life Threatening (SDLT) Central Nervous System (CNS) Conditions.

This study is being conducted to evaluate individualised antisense oligonucleotides (ASOs) in participants with severely debilitating, life threatening (SDLT) central nervous system (CNS) conditions caused by unique genetic variants amenable to correction by an ASO.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This phase 1/2 multicentre, open-label, within-participant dose escalation clinical trial is designed to evaluate individualised antisense oligonucleotides (ASOs) in participants aged 1 year or older with severely debilitating, life threatening (SDLT) central nervous system (CNS) conditions caused by unique genetic variants amenable to correction by an ASO. The trial consists of two parts: Part A: a 30-day Screening period and a minimum 4-week Run-in period followed by Part B: a 48-week Treatment period and Safety Follow-up. For each part, the investigator will determine if the participant is appropriate for participation based on disease stage, rate of disease progression, and likelihood of benefit from ASO treatment at the time that the ASO is available.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. The first participant receiving the individualised ASO, must be between 1 and 17 years of age (inclusive) at the time they receive their first ASO dose.
  2. The CNS condition is severely debilitating and/or life threatening.
  3. The identified genetic variant is unique.
  4. The identified genetic variant is considered the underlying cause of disease.
  5. The identified genetic variant is amenable to correction by an ASO.
  6. In the opinion of the investigator, the disease is at a stage that, if halted or slowed by treatment with the individualised ASO, has a reasonable chance to improve the participant's overall disease burden/impact on quality of life.
  7. In the opinion of the investigator, participant, and/or the participant's legally authorised representative, existing therapies have not resulted in meaningful benefit.

Exclusion Criteria:

  1. Known history or presence of any clinically significant hepatic, renal/genitourinary, gastrointestinal, cardiovascular, cerebrovascular, pulmonary, endocrine, immunological, musculoskeletal, neurological, psychiatric, dermatological, or haematological disease or condition other than the primary disease for which the individualised ASO is being developed that in the opinion of the Investigator could affect patient safety or interfere with study outcomes.
  2. Any contraindication to brain MRI scans.
  3. Any contraindication to sedation or anaesthesia.
  4. Any contraindication to lumbar punctures or IT infusions.
  5. Treatment with another ASO within 24 weeks of Screening.
  6. Treatment with any gene replacement therapy at any time.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Individualized ASO
Drug: Individualized ASO
Individualized ASO

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence of Treatment-Emergent Adverse Events (Safety and Tolerability)
Time Frame: 48 Weeks
Treatment-related incidence and severity of adverse events (AEs), including any unfavorable and unintended signs such as abnormal laboratory or test findings
48 Weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Peak Plasma Concentration (Cmax)
Time Frame: Plasma collected pre-dose and at .5, 1, 2, 6, 24, and 48 hour post-infusion
Estimates of ASO maximum plasma concentration (Cmax)
Plasma collected pre-dose and at .5, 1, 2, 6, 24, and 48 hour post-infusion
Area Under the Plasma Concentration-time Curve (AUC)
Time Frame: Plasma collected Pre-dose and .5, 1, 2, 6, 24, and 48 hours post infusion
Area under the plasma concentration-time curve (AUC) from time zero to infinity following a dosing of study drug. It is an integrated measure of study drug plasma exposure.
Plasma collected Pre-dose and .5, 1, 2, 6, 24, and 48 hours post infusion
Plasma Half-life (T1/2)
Time Frame: Plasma collected pre-dose and .5, 1, 2, 6, 24, and 48 hours post infusion
Apparent terminal plasma half-life (T1/2) is the amount of time for plasma concentrations to decline by 50%.
Plasma collected pre-dose and .5, 1, 2, 6, 24, and 48 hours post infusion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
EveryONE Medicines Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 13, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 30, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 12, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 7, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 13, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 17, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 16, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • EOM-MP1
  • 1012261 (Other Identifier: IRAS ID)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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