Evidence map›Paper›PMID 42697856›Full record

Trial reportJournal of the peripheral nervous system : JPNS2026

Impact of Baseline Polyneuropathy Severity on Eplontersen Efficacy in the NEURO-TTRansform Clinical Trial.

Thomas H Brannagan, Markus Weiler, Márcia Waddington Cruz, Sami Khella, John L Berk, Morie Gertz, Ahmad Masri, Mathew S Maurer, Jonas Wixner, Jonatan Nåtman and 3 more

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the peripheral nervous system : JPNS, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04136184 (A Phase 3 Global, Open-Label, Randomized Study to Evaluate the Efficacy and Safety of ION-682884 in Patients With Hereditary Transthyretin-Mediated Amyloid Polyneuropathy), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04136184 phase3completednot on this map

A Phase 3 Global, Open-Label, Randomized Study to Evaluate the Efficacy and Safety of ION-682884 in Patients With Hereditary Transthyretin-Mediated Amyloid Polyneuropathy

TypeinterventionalSponsorIonis Pharmaceuticals, Inc.Ran2019 to 2023Enrolled168ConditionsHereditary Transthyretin-Mediated Amyloid PolyneuropathyArmsInotersen, Eplontersen
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Thomas H BrannaganDepartment of Neurology, Columbia University, Vagelos College of Physicians and Surgeons, New York, New York, USA.ORCID https://orcid.org/0000-0002-1812-8331
Markus WeilerAmyloidosis Center and Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany.ORCID https://orcid.org/0000-0002-8942-7662
Márcia Waddington CruzCEPARM, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.ORCID https://orcid.org/0000-0003-4853-2236
Sami KhellaUniversity of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0001-5684-119X
John L BerkBoston University School of Medicine, Boston, Massachusetts, USA.ORCID https://orcid.org/0000-0002-1768-2373
Morie GertzDepartment of Hematology, Mayo Clinic, Rochester, Minnesota, USA.ORCID https://orcid.org/0000-0002-3853-5196
Ahmad MasriOregon Health & Science University, Portland, Oregon, USA.ORCID https://orcid.org/0000-0002-6390-6526
Mathew S MaurerColumbia University Irving Medical Center, New York, New York, USA.ORCID https://orcid.org/0000-0001-5400-5008
Jonas WixnerAmyloidosis Centre, Department of Public Health and Clinical Medicine, Umeå University Hospital, Umeå, Sweden.ORCID https://orcid.org/0000-0002-1536-1277
Jonatan NåtmanBioPharmaceuticals Business Unit, AstraZeneca, Gothenburg, Sweden.ORCID https://orcid.org/0009-0002-1604-2435
T Jesse KwohClinical Development, Ionis Pharmaceuticals, Inc, Carlsbad, California, USA.ORCID https://orcid.org/0009-0003-8726-3996
Maksym PolaLate Cardiovascular, Renal, Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.
Laura ObiciAmyloidosis Research and Treatment Centre, IRCCS Fondazione Policlinico San Matteo, Pavia, Italy.ORCID https://orcid.org/0000-0001-7468-700X

Funding

AstraZenecaIonis Pharmaceuticals
6 · The paper itself

Abstract

BACKGROUND AND

aimsIn the NEURO-TTRansform clinical trial (NCT04136184), eplontersen improved neuropathy impairment and quality of life (QoL) through Week 66 versus the NEURO-TTR historical placebo in patients with hereditary transthyretin amyloidosis with polyneuropathy (ATTRv-PN). This analysis assessed the impact of baseline ATTRv-PN severity on eplontersen response in patients from NEURO-TTRansform.

methodsThis post hoc analysis grouped patients into tertiles by baseline Neuropathy Impairment Score (NIS): T1 (least baseline impairment: 3.5 to < 27.5; n = 67), T2 (27.5 to < 55.0; n = 67), and T3 (55.0 to < 127.8; n = 66). Outcomes assessed were neuropathy impairment (modified NIS+7 [mNIS+7] and NIS, Neuropathy Symptom and Change, Polyneuropathy Disability), QoL (Norfolk QoL-Diabetic Neuropathy), physical functioning (36-Item Short-Form Health Survey Physical Component Summary), nutritional status (modified body mass index), and serum transthyretin levels; these were compared with NEURO-TTR historical placebo. Autonomic dysfunction (Composite Autonomic Symptom Score-31), disability (Rasch-built Overall Disability Scale), and walking speed (10-Meter Walk Test) were also assessed. Final assessments were carried out following 65/66 or 81/85 weeks of treatment.

resultsMean mNIS+7 composite scores were maintained over 85 weeks with eplontersen (changes from baseline of -4.5 [T1], -1.3 [T2], and -2.6 [T3] points). Other disease parameter scores were similarly maintained or improved with eplontersen. Patients receiving placebo experienced disease worsening across outcomes. T1 mean disease scores were typically better than in T2 and T3.

interpretationConsistent, sustained benefits of eplontersen were observed regardless of baseline ATTRv-PN severity. These findings strengthen the importance of early treatment initiation for patients with ATTRv-PN across the disease spectrum.

Indexed as

Amyloid Neuropathies, FamilialOutcome Assessment, Health CarePolyneuropathiesAgedDouble-Blind MethodFemaleHumansMaleMiddle AgedOligonucleotidesQuality of LifeSeverity of Illness IndexeplontersenOligonucleotidesATTRv‐PNeplontersenhereditary transthyretin amyloidosispolyneuropathyTTR gene silencer

Identifiers

PMID42697856
PMCPMC13545155

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.