Evidence map›Paper›PMID 21575194›Full record

Trial reportBMC musculoskeletal disorders2011

Trazodone plus pregabalin combination in the treatment of fibromyalgia: a two-phase, 24-week, open-label uncontrolled study.

Elena P Calandre, Piedad Morillas-Arques, Rocío Molina-Barea, Carmen M Rodriguez-Lopez, Fernando Rico-Villademoros

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in BMC musculoskeletal disorders, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00791739 (Open Label Trial Concerning the Effectiveness of Trazodone in the Treatment of Fibromyalgia), which is not on this map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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.

NCT00791739 phase4completednot on this map

Open Label Trial Concerning the Effectiveness of Trazodone in the Treatment of Fibromyalgia (Phase I) and Its Augmentation With Pregabalin in Trazodone Partial Responders (Phase II)

TypeinterventionalSponsorUniversidad de GranadaRan2008 to 2009Enrolled66ConditionsFibromyalgiaArmstrazodone, pregabalin
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Combination pharmacotherapy for the treatment of fibromyalgia in adults.The Cochrane database of systematic reviews · 2018
    Pooled it
  2. Trial
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  5. Review
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  12. Psychotropic Drugs for the Management of Chronic Pain and Itch.Pharmaceuticals (Basel, Switzerland) · 2019
    Review
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  15. Article
  16. Review
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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

5 authors at 2 institutions in 1 country.

Elena P CalandreInstituto de Neurociencias y Centro de Investigaciones Biomédicas, Universidad de Granada, Granada, Spain. calandre@gmail.com
Piedad Morillas-Arques
Rocío Molina-Barea
Carmen M Rodriguez-Lopez
Fernando Rico-Villademoros
Universidad de Granada · ESInstituto Andaluz de Ciencias de la Tierra · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough trazodone is frequently used by fibromyalgia patients, its efficacy on this disease has not been adequately studied. If effective, pregabalin, whose beneficial effects on pain and sleep quality in fibromyalgia have been demonstrated, could complement the antidepressant and anxiolytic effects of trazodone. The aim of the present study was to assess the effectiveness of trazodone alone and in combination with pregabalin in the treatment of fibromyalgia.

methodsThis was an open-label uncontrolled study. Trazodone, flexibly dosed (50-300 mg/day), was administered to 66 fibromyalgia patients during 12 weeks; 41 patients who completed the treatment accepted to receive pregabalin, also flexibly dosed (75-450 mg/day), added to trazodone treatment for an additional 12-week period. Outcome measures included the Fibromyalgia Impact Questionnaire (FIQ), the Pittsburgh Sleep Quality Index (PSQI), the Beck Depression Inventory (BDI), the Hospital Anxiety and Depression Scale (HADS), the Brief Pain Inventory (BPI), the Short-Form Health Survey (SF-36), and the Patients' Global Improvement scale (PGI). Emergent adverse reactions were recorded. Data were analyzed with repeated measures one-way ANOVA and paired Student's t test.

resultsTreatment with trazodone significantly improved global fibromyalgia severity, sleep quality, and depression, as well as pain interference with daily activities although without showing a direct effect on bodily pain. After pregabalin combination additional and significant improvements were seen on fibromyalgia severity, depression and pain interference with daily activities, and a decrease in bodily pain was also apparent. During the second phase of the study, only two patients dropped out due to side effects.

conclusionsTrazodone significantly improved fibromyalgia severity and associated symptomatology. Its combination with pregabalin potentiated this improvement and the tolerability of the drugs in association was good.

trial registrationClinicalTrials.gov: NCT00791739.

Indexed as

AdultAnalgesicsAnalysis of VarianceAnti-Anxiety AgentsAntidepressive Agents, Second-GenerationAnxietyDepressionDrug Therapy, CombinationFemaleFibromyalgiagamma-Aminobutyric AcidHumansMaleMiddle AgedPainPain MeasurementAnalgesicsAnti-Anxiety AgentsAntidepressive Agents, Second-Generationgamma-Aminobutyric AcidPregabalinSelective Serotonin Reuptake InhibitorsTrazodone

Identifiers

PMID21575194
PMCPMC3112435
OpenAlexW2103946421

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.