Evidence map›Paper›PMID 26927672›Full record

Trial reportThe Journal of clinical investigation2016

Dose-escalation study of octanoic acid in patients with essential tremor.

Bernhard Voller, Emily Lines, Gayle McCrossin, Sule Tinaz, Codrin Lungu, George Grimes, Judith Starling, Gopal Potti, Peter Buchwald, Dietrich Haubenberger and 1 more

Open access · bronzeAbstract readClinical TrialComparative StudyMulticenter Study
In one paragraph

Trial report in The Journal of clinical investigation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. The response of the central and peripheral tremor component to octanoic acid in patients with essential tremor.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2018
    Trial
  4. Article
  5. Tips and tricks in tremor treatment.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  6. Article
  7. Review
  8. Essential tremor.Nature reviews. Disease primers · 2021
    Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Emerging strategies in the management of essential tremor.Therapeutic advances in neurological disorders · 2017
    Review
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

11 authors at 3 institutions in 2 countries.

Bernhard Voller
Emily Lines
Gayle McCrossin
Sule Tinaz
Codrin Lungu
George Grimes
Judith Starling
Gopal Potti
Peter Buchwald
Dietrich Haubenberger
Mark Hallett
Medical University of Vienna · ATOffice of the Director · USUniversity of Miami · US

Funding

Pathophysiology of Involuntary Movements and Volitional DisordersZIANS002667 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI HALLETT, MARK · 2009 to 2023
$17.7M
Therapy of Movement DisordersZIANS003032 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI HALLETT, MARK · 2009 to 2023
$3.7M
Intramural NIH HHS
6 · The paper itself

Abstract

backgroundRecently, 1-octanol has been shown to have efficacy in treating patients with essential tremor (ET). The primary metabolite of 1-octanol is octanoic acid (OA), which is now thought to be the active substance that mediates tremor suppression. Our aim was to describe the maximum tolerated dose (MTD) of oral OA in patients with ET and assess the pharmacokinetics (PK) and pharmacodynamics (PD) profile of OA.

methodsThe MTD was studied using an open-label, single-ascending 3 + 3 dose-escalation design. Predefined single doses ranged from 8 to 128 mg/kg, with grade 2 adverse events (AEs) defined as dose-limiting toxicity. Tremor was assessed using accelerometry, digital spiral analysis, and a standard clinical rating scale at baseline and up to 600 minutes after intake. Safety assessments and PK sampling were also performed.

resultsDose-limiting toxicity was not reached. The most frequent AE was mild abdominal discomfort. Exposure (AUC) increased linearly with the dose. Secondary efficacy measures suggested a dose-dependent reduction of tremor. Accordingly, a single unified PK/PD model with an effect compartment and sigmoid maximum effect (Emax) response could be built that accounted well for the time profiles of plasma concentrations as well as effects on tremor severity across the 5 dose levels.

conclusionAlthough our trial did not reach an MTD, a dose-dependent effect was demonstrated in the PK/PD model as well as in secondary efficacy outcomes. Future studies are needed to explore the safety in higher dose ranges and to confirm dose-dependent efficacy in a placebo-controlled design.

trial registrationClinicaltrials.gov NCT01468948FUNDING. NINDS Intramural Research Program; TG Therapeutics Inc.

Indexed as

CaprylatesDose-Response Relationship, DrugEssential TremorFemaleHumansMaleCaprylatesoctanoic acid

Identifiers

PMID26927672
PMCPMC4811161
OpenAlexW2290141228

What OpenQuestion holds

Textmetadata
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.