A Study to Assess the Long-Term Safety and Efficacy of Eplontersen (Formerly Known as ION-682884, IONIS-TTR-LRx and AKCEA-TTR-LRx) in Patients With Hereditary Transthyretin-Mediated Amyloid Polyneuropathy

  • End date
    Jul 8, 2024
  • participants needed
  • sponsor
    Ionis Pharmaceuticals, Inc.
Updated on 8 April 2023


The purpose of this study is to evaluate the safety and tolerability of extended dosing with Eplontersen in participants with hereditary transthyretin-mediated amyloid polyneuropathy (hATTR-PN).


This is a multicenter, open-label, Phase 3 study in up to approximately 140 participants. Eligible participants will receive Eplontersen once every 4 weeks for up to 157 weeks. Participants will also receive daily supplemental doses of the recommended daily allowance (RDA) of vitamin A. This study will consist of the following periods: less than or equal to (≤) 8-week screening period, a 157 weeks treatment period, and a 24-week post-treatment evaluation period.

Condition Hereditary Transthyretin-Mediated Amyloid Polyneuropathy
Treatment Eplontersen, ION-682884
Clinical Study IdentifierNCT05071300
SponsorIonis Pharmaceuticals, Inc.
Last Modified on8 April 2023


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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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