PrProfile: A Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of ION717

NCT ID: NCT06153966

Last Updated: 2024-12-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

56 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-01-04

Study Completion Date

2027-07-31

Brief Summary

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The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of intrathecal (IT) delivery of ION717.

Detailed Description

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This is a first-in-human, randomized, multi-center study in participants with prion disease. Eligible participants will receive ION717 and placebo. The study will consist of a screening period of up to 6 weeks, a 30-week double-blind treatment period, a 70-week open-label extension period and a 32-week post-treatment period. During the double-blind period, the order of ION717 and placebo doses will be randomized and blinded to participants, study sites and the Sponsor. During the open-label extension period, all participants will receive ION717. Multiple dose levels will be tested.

Conditions

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Prion Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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ION717 + Placebo, Regimen 1

Participants will receive multiple doses of study drug (ION717 and placebo) during the 30-week double-blind treatment period; the order of doses is blinded. Participants will then receive multiple doses of ION717 during the 70-week open-label extension period.

Group Type EXPERIMENTAL

ION717

Intervention Type DRUG

ION717 will be administered by IT injection.

Placebo

Intervention Type DRUG

Placebo-matching ION717 will be administered by IT injection.

ION717 + Placebo, Regimen 2

Participants will receive multiple doses of study drug (ION717 and placebo) during the 30-week double-blind treatment period; the order of doses is blinded. Participants will then receive multiple doses of ION717 during the 70-week open-label extension period.

Group Type EXPERIMENTAL

ION717

Intervention Type DRUG

ION717 will be administered by IT injection.

Placebo

Intervention Type DRUG

Placebo-matching ION717 will be administered by IT injection.

Interventions

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ION717

ION717 will be administered by IT injection.

Intervention Type DRUG

Placebo

Placebo-matching ION717 will be administered by IT injection.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* A confirmed diagnosis of probable or definite prion disease.
* Early-stage prion disease at the time of Screening.
* Willing to meet all study requirements, including travel to Study Center, procedures, measurements and visits.
* Patients must have a caregiver who is ≥ 18 years old and who is able and willing to facilitate the patient's involvement, to the best of their ability, for the duration of the trial; caregivers must also be able and willing to provide information about themselves and the patient for the duration of the trial.
* Aged ≥ 18 at the time of informed consent.

Exclusion Criteria

* Clinically significant abnormalities in medical history, laboratory tests or physical examination that would render a patient unsuitable for inclusion.
* Any contraindication or unwillingness to undergo an MRI.
* Obstructive hydrocephalus, presence of a functional ventriculoperitoneal shunt for the drainage of cerebrospinal fluid (CSF) or an implanted central nervous system (CNS) catheter.
* Known brain or spinal disease that would interfere with the LP process, CSF circulation or safety assessment.
* Have any other condition, which, in the opinion of the Investigator would make the patient unsuitable for inclusion or could interfere with the patient participating in or completing the study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ionis Pharmaceuticals, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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UCLA Neurology Clinic

Los Angeles, California, United States

Site Status

University of Colorado Hospital

Denver, Colorado, United States

Site Status

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

NYU Langone Health

New York, New York, United States

Site Status

University Hospitals Cleveland Medical Center

Cleveland, Ohio, United States

Site Status

Royal Melbourne Hospital

Parkville, , Australia

Site Status

University of Alberta

Edmonton, Alberta, Canada

Site Status

McGill University Health Centre

Montreal, Quebec, Canada

Site Status

Hôpital Universitaire Pitié Salpêtrière

Paris, , France

Site Status

University Medical Center Göttingen

Göttingen, , Germany

Site Status

Tel Aviv Sourasky Medical Center

Tel Aviv, , Israel

Site Status

Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta

Milan, , Italy

Site Status

Mihara Memorial Hospital

Gunma, Isesaki-shi, Japan

Site Status

National Center of Neurology and Psychiatry

Tokyo, Kodaira-shi, Japan

Site Status

Neuromuscular Center Yoshimizu Hospital

Yamaguchi, Shimonoseki-shi, Japan

Site Status

Hospital Clinic De Barcelona

Barcelona, , Spain

Site Status

Countries

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United States Australia Canada France Germany Israel Italy Japan Spain

Other Identifiers

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2023-503355-98

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

ION717-CS2

Identifier Type: -

Identifier Source: org_study_id