Evidence map›Paper›PMID 34355354›Full record

ArticleNeurology and therapy2021

Early Data on Long-term Impact of Inotersen on Quality-of-Life in Patients with Hereditary Transthyretin Amyloidosis Polyneuropathy: Open-Label Extension of NEURO-TTR.

Aaron Yarlas, Andrew Lovley, Kristen McCausland, Duncan Brown, Montserrat Vera-Llonch, Isabel Conceição, Chafic Karam, Sami Khella, Laura Obici, Márcia Waddington-Cruz

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Neurology and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 27% of its field
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.

NCT01737398 phase2 / phase3completednot on this map

A Phase 2/3 Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of ISIS 420915 in Patients With Familial Amyloid Polyneuropathy (NEURO-TTR Study)

TypeinterventionalSponsorIonis Pharmaceuticals, Inc.Ran2013 to 2017Enrolled173ConditionsFAP, Familial Amyloid Polyneuropathy, TTR, TransthyretinArmsInotersen, Placebo
NCT02175004 phase3completednot on this map

An Open-Label Extension Study to Assess the Long-Term Safety and Efficacy of ISIS 420915 in Patients With Familial Amyloid Polyneuropathy (FAP)

TypeinterventionalSponsorIonis Pharmaceuticals, Inc.Ran2014 to 2021Enrolled135ConditionsFAP, Familial Amyloid Polyneuropathy, TTR, TransthyretinArmsInotersen
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 13 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Cardiovascular autonomic failure in hereditary transthyretin amyloidosis and TTR carriers is an early and progressive disease marker.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2024
    Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
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

10 authors at 6 institutions in 4 countries.

Aaron YarlasQualityMetric, 1301 Atwood Avenue, Suite 316E, Johnston, RI, 02919, USA. ayarlas@qualitymetric.com.ORCID http://orcid.org/0000-0003-4600-259X
Andrew LovleyQualityMetric, 1301 Atwood Avenue, Suite 316E, Johnston, RI, 02919, USA.
Kristen McCauslandQualityMetric, 1301 Atwood Avenue, Suite 316E, Johnston, RI, 02919, USA.
Duncan BrownIonis Pharmaceuticals, Boston, MA, USA.
Montserrat Vera-LlonchIonis Pharmaceuticals, Boston, MA, USA.
Isabel ConceiçãoCentro Hospitalar Universitário Lisboa Norte, Hospital de Santa Maria and Faculdade de Medicina, Lisbon, Portugal.
Chafic KaramUniversity of Pennsylvania, Philadelphia, PA, USA.
Sami KhellaUniversity of Pennsylvania, Philadelphia, PA, USA.
Laura ObiciAmyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Márcia Waddington-CruzFederal University of Rio de Janeiro, National Amyloidosis Referral Center, CEPARM, Rio de Janeiro, Brazil.
GroundMetrics (United States) · USIonis Pharmaceuticals (United States) · USUniversity of Pennsylvania · USHospital de Santa Maria · PTPoliclinico San Matteo Fondazione · ITUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPatients with hereditary transthyretin amyloidosis associated with polyneuropathy (ATTRv-PN) experience deterioration in health-related quality of life (HRQOL) as the disease progresses. Findings from the randomized placebo-controlled phase III NEURO-TTR study showed treatment benefit of inotersen, an antisense oligonucleotide, for preserving or improving HRQOL after 65 weeks of treatment. The current analysis examines longitudinal trends in specific aspects of HRQOL, including polyneuropathy symptoms, daily activities, and physical, role, and social functioning in patients with ATTRv-PN receiving long-term treatment in a follow-up open-label extension (OLE) study.

methodsOne-hundred thirty-five patients with ATTRv-PN were enrolled in an ongoing 5-year OLE study following completion of NEURO-TTR. Eighty-five patients received continuous weekly treatment with inotersen in both studies (inotersen-inotersen group), while 50 patients switched from placebo to inotersen at OLE study baseline (placebo-inotersen group). Descriptive analyses of changes in domain scores and item responses through week 104 of the OLE study were conducted for measures of neuropathy-related and generic HRQOL: Norfolk QOL-Diabetic Neuropathy (DN) questionnaire and SF-36v2® Health Survey (SF-36v2), respectively.

resultsFor both inotersen-inotersen and placebo-inotersen groups, all Norfolk QOL-DN and most SF-36v2 domain scores remained stable from OLE baseline through week 104. Differences in HRQOL between the two groups at OLE baseline were sustained through week 104. Analysis of item responses from NEURO-TTR baseline to OLE study week 104 (170 weeks) for the inotersen-inotersen group found no notable increases in the proportion of patients reporting substantial impairments across a wide variety of symptoms, daily activities, and functioning.

conclusionLong-term treatment with inotersen preserved HRQOL for patients with ATTRv-PN for periods of up to 3 years. The gap in HRQOL between those who had previously received inotersen or placebo in NEURO-TTR did not close by week 104 of the OLE phase, indicating the importance of early treatment for maintaining HRQOL in these patients.

trial registrationClinicalTrials.gov Identifiers NCT01737398 for NEURO-TTR study; NCT02175004 for OLE study INFOGRAPHIC.

Indexed as

Clinical trialHereditary transthyretin amyloidosisInotersenOpen-label extension trialPhysical functionPolyneuropathyQuality of lifeRare disease

Identifiers

PMID34355354
PMCPMC8571454
OpenAlexW3188442321

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.