Evidence map›Paper›PMID 33004044›Full record

ArticleBMC endocrine disorders2020

No change in the consumption of thyroid hormones after starting low dose naltrexone (LDN): a quasi-experimental before-after study.

Guttorm Raknes, Lars Småbrekke

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC endocrine disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 39% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 3 citations in OpenAlex.

  1. 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

2 authors at 2 institutions in 1 country.

Guttorm RaknesRegional Medicines Information and Pharmacovigilance Centre (RELIS), University Hospital of North Norway, Tromsø, Norway.ORCID https://orcid.org/0000-0002-3376-6761
Lars SmåbrekkeDepartment of Pharmacy, Faculty of Health Sciences, UiT - The arctic university of Norway, Tromsø, Norway. lars.smabrekke@uit.no.ORCID https://orcid.org/0000-0001-6475-3368
UiT The Arctic University of Norway · NOUniversity Hospital of North Norway · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLow dose naltrexone (LDN) is reported to have beneficial effects in several autoimmune diseases. The purpose of this study was to examine whether starting LDN was followed by changes in the dispensing of thyroid hormones to patients with hypothyroidism.

methodsWe performed a quasi-experimental before-after study based on the Norwegian Prescription Database. Study participants were identified by using reimbursement codes for hypothyroidism. Cumulative dispensed Defined Daily Doses and the number of users of triiodothyronine (T3) and levothyroxine (LT4) 1 year before and after the first LDN prescription was compared in three groups based on LDN exposure.

resultsWe identified 898 patients that met the inclusion criteria. There was no association between starting LDN and the subsequent dispensing of thyroid hormones. If anything, there was a tendency towards increasing LT4 consumption with increasing LDN exposure.

conclusionThe results of this study do not support claims of efficacy of LDN in hypothyroidism.

Indexed as

Controlled Before-After StudiesDose-Response Relationship, DrugFemaleHumansHypothyroidismMaleMiddle AgedNaltrexoneNarcotic AntagonistsPrognosisThyroid HormonesThyroxineTriiodothyronineNaltrexoneNarcotic AntagonistsThyroid HormonesThyroxineTriiodothyronineEndocrinologyHypothyroidismLevothyroxineNaltrexonePharmacoepidemiologyTriiodohyronine

Identifiers

PMID33004044
PMCPMC7528597
OpenAlexW3090306742

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.