Evidence map›Paper›PMID 30571543›Full record

Trial reportHypertension (Dallas, Tex. : 1979)2019

Synergistic Pressor Effect of Atomoxetine and Pyridostigmine in Patients With Neurogenic Orthostatic Hypotension.

Luis E Okamoto, Cyndya A Shibao, Alfredo Gamboa, André Diedrich, Satish R Raj, Bonnie K Black, David Robertson, Italo Biaggioni

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Hypertension (Dallas, Tex. : 1979), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Atomoxetine on neurogenic orthostatic hypotension: a randomized, double-blind, placebo-controlled crossover trial.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2024
    Trial
  4. Efficacy of atomoxetine versus midodrine for neurogenic orthostatic hypotension.Annals of clinical and translational neurology · 2020
    Trial
  5. Cardiovascular autonomic failure correlates with cutaneous autonomic denervation in PD and MSA.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Update on the Treatment of Autonomic Disorders.Current treatment options in neurology · 2025
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Orthostatic Hypotension: Management of a Complex, But Common, Medical Problem.Circulation. Arrhythmia and electrophysiology · 2022
    Review
  17. Review
  18. Review
  19. Pharmacologic treatment of orthostatic hypotension.Autonomic neuroscience : basic & clinical · 2020
    Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 2 countries.

Luis E OkamotoFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
Cyndya A ShibaoFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
Alfredo GamboaFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
André DiedrichFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
Satish R RajFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
Bonnie K BlackFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
David RobertsonFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
Italo BiaggioniFrom the Vanderbilt Autonomic Dysfunction Center (L.E.O., C.A.S., A.G. A.D., S.R.R., B.K.B., D.R., I.B.), Vanderbilt University School of Medicine, Nashville, TN.
Vanderbilt University · US

Funding

Vanderbilt Institute for Clinical and Translational Research (VICTR) -Identifying correlates of functional immunity in SARS-CoV-2 convalescent plasmaUL1TR002243 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Paul A. Harris, Wesley H Self · 2017 to 2026
$130.7M
Structural genomics of norepinephrine transportersP01HL056693 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI ROBERTSON, DAVID HERLIE · 1997 to 2016
$30.8M
Training CoreU54NS065736 · NINDS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BIAGGIONI, ITALO · 2009 to 2018
$11.6M
Autonomic Determinants of Postural Tachycardia SyndromeR01HL142583 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI DIEDRICH, ANDRE · 2019 to 2022
$1.7M
Phase 2 Norepinephrine Transporter Blockade, Autonomic Failure IND117394 12/28/12R01FD004778 · FDA · VANDERBILT UNIVERSITY MEDICAL CENTER · PI KAUFMANN, HORACIO, SHIBAO, CYNDYA ADRIANA · 2016 to 2019
$1.6M
Splanchnic Circulation and Blood Pressure RegulationR01HL122847 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BIAGGIONI, ITALO · 2015 to 2018
$1.6M
Autonomic Determinants of Postural Tachycardia SyndromeR56HL142583 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI DIEDRICH, ANDRE · 2018 to 2018
$391k
FDA HHS R01 FD004778NCATS NIH HHS UL1 TR002243NHLBI NIH HHS P01 HL056693NHLBI NIH HHS R01 HL122847NHLBI NIH HHS R01 HL142583NHLBI NIH HHS R56 HL142583NINDS NIH HHS U54 NS065736
6 · The paper itself

Abstract

Patients with autonomic failure are characterized by disabling orthostatic hypotension because of impaired sympathetic activity, but even severely affected patients have residual sympathetic tone which can be harnessed for their treatment. For example, norepinephrine transporter blockade with atomoxetine raises blood pressure (BP) in autonomic failure patients by increasing synaptic norepinephrine concentrations; acetylcholinesterase inhibition with pyridostigmine increases BP by facilitating ganglionic cholinergic neurotransmission to increase sympathetic outflow. We tested the hypothesis that pyridostigmine will potentiate the pressor effect of atomoxetine and improve orthostatic tolerance and symptoms in patients with severe autonomic failure. Twelve patients received a single oral dose of either placebo, pyridostigmine 60 mg, atomoxetine 18 mg or the combination on separate days in a single blind, crossover study. BP was assessed seated and standing before and 1-hour postdrug. In these severely affected patients, neither pyridostigmine nor atomoxetine improved BP or orthostatic tolerance compared with placebo. The combination, however, significantly increased seated BP in a synergistic manner (133±9/80±4 versus 107±6/66±4 mm Hg for placebo, 105±5/67±3 mm Hg for atomoxetine, and 99±6/64±4 mm Hg for pyridostigmine; P<0.001); the maximal increase in seated BP with the combination was 33±8/18±3 mm Hg at 60 minutes postdrug. Only the combination showed a significant improvement of orthostatic tolerance and symptoms. In conclusion, the combination pyridostigmine and atomoxetine had a synergistic effect on seated BP which was associated with improvement in orthostatic tolerance and symptoms. This pharmacological approach could be useful in patients with severe autonomic failure but further safety and long-term efficacy studies are needed.

Indexed as

Atomoxetine HydrochlorideAutonomic Nervous System DiseasesHypotension, OrthostaticPyridostigmine BromideAdultBlood PressureBlood Pressure DeterminationCross-Over StudiesDrug MonitoringDrug SynergismDrug Therapy, CombinationFemaleHumansMaleSingle-Blind MethodTreatment OutcomeAtomoxetine HydrochloridePyridostigmine BromideVasoconstrictor Agentsatomoxetineautonomic failureblood pressurehypertensionorthostatic hypotensionpyridostigmine bromide

Identifiers

PMID30571543
PMCPMC6309809
OpenAlexW2901189063

What OpenQuestion holds

Textmetadata
LicenceTDM
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.