- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02195271
Neuroplasticity:Melatonin and Transcranial Current Stimulation in Healthy Subjects.
Effect of Melatonin and Transcranial Direct Current Stimulation (tDCS) on Neuroplasticity and the Heat-pain Detection Threshold in Healthy Subjects:Randomized, Double-blind,Crossover Trial
Pain exerts a tremendous cost in healthy care, rehabilitation and lost productivity. It is is associated with a wide range of diseases and their social consequences is a public health problem.
With the progress of neuroscience and studies on the plasticity of the central nervous system, it has been provided a better understanding of the neurobiological mechanisms of pain.
The neurohormone Melatonin stands by having systemic and diverse mechanisms of action, both in physiological and pathological situations, with modulating effects on the process of nociceptive signaling and neurochemical mechanisms such as serotonergic, opioidergic and GABAergic, exerting anti-inflammatory action, analgesic activity among others.
The advent of neuromodulation techniques such as transcranial direct current stimulation (tDCS), which promote changes in neuronal activity and signaling to be effective in conditions of chronic pain by attenuating changes in cortical excitability.
There is clinical evidence of the analgesic effect of Melatonin and tDCS alone. Thus, considering the potential for each isolated intervention and the lack of knowledge of their combined effect, the authors propose the present study to investigate the effect of this combination on the heat-pain detection threshold and the neuroplasticity in the healthy subjects.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
The methods are according to the CONSORT guidelines.
Heat pain threshold and tolerance : Quantitative Sensory Testing (QST) will be used on a computer Peltier-based device thermode.
Conditioned Pain Modulation (CPM)-task: Immerssing the non-dominant hand cold water for 1 minute.
Serum Brain Derived Neurotrophic Factor (BDNF).
Transcranial Magnetic Stimulation (TMS) assessment: motor threshold, motor evoked potential, Short intracortical inhibition and intracortical facilitation.
Statistical analyses: Descriptive statistics, Linear and multiple regression analysis, performed with SPSS version18.0.
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Fase 2
Kontakter og lokationer
Studiesteder
-
-
RS
-
Porto Alegre, RS, Brasilien, 900035-903
- Rekruttering
- Hospital De Clinicas De Porto Alegre
-
Kontakt:
- Wolnei Caumo
- Telefonnummer: 555133590083
- E-mail: caumo@cpovo.net
-
Underforsker:
- Nadia Jardim, MD, Msc
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Male 18-40 years old
- Healthy
- Without medication
- Sign the informed consent
Exclusion Criteria:
- Patients who did not understand the Portuguese
- Acute or chronic pain conditions
- Medical or psychiatric disorders
- History of alcohol or substance abuse
- Neurological disorder
- Use of medications affect in the central nervous system
- Traumatic brain injury
- Neurosurgery
- Metallic implant in the brain
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Firedobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: Melatonin
0,25mg/Kg sl before tDCS
|
|
|
Eksperimentel: tDCS
Transcranial direct current stimulation once time.
Dose 2 mA, 20 seconds.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change from baseline in heat-pain threshold with pain score
Tidsramme: Baseline, one week
|
Heat-threshold by Pettier-based device on the contralateral hand assessment pain score (VAS)
|
Baseline, one week
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change from baseline Brain-Derived neurotrophic factor (BDNF)
Tidsramme: Baseline, one week
|
Baseline, one week
|
|
|
Change from Baseline from Catastrophizing Scale
Tidsramme: Baseline, one week
|
Baseline, one week
|
|
|
Change from baseline Inventory of state-trait anxiety Scale
Tidsramme: Baseline, one week
|
Baseline, one week
|
|
|
Change from baseline Inventory of Coping
Tidsramme: Baseline, one week
|
Baseline, one week
|
|
|
Change from baseline of cortical excitability
Tidsramme: Baseline, one week
|
Transcranial Magnetic Stimulation (TMS) assessment motor threshold, motor-evoked potentials, silent period, intracortical inhibition and facilitation
|
Baseline, one week
|
Samarbejdspartnere og efterforskere
Efterforskere
- Ledende efterforsker: Wolnei Caumo, Hospital de Clinicas de Porto Alegre - UFRGS
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 130155
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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