Register	Date of search	Search terms	Number of records	Number of relevant records
NRR archive	7 February 2013	(chronic* or back or musculoskel* or intractabl* or neuropath* or phantom limb or fantom limb or neck or myofasc* or temp*romandib joint or central or post*stroke or complex or regional or spinal cord or sciatica or back‐ache or back*ache or lumbago or fibromyalg* or trigem* neuralg* or herp* neuralg* or diabet* neuropath* or reflex dystroph* or sudeck* atroph* or causalg* or whip‐lash or whip*lash or polymyalg* or failed back surg* or failed back syndrome) AND (brain* or cortex or cortical or transcranial* or cranial or magneti* or direct current or DC or electric or crani* or electrostim* or electrotherap* or electro‐therap* or non‐invasive or non*invasive or theta burst stimulat* or iTBS or Ctbs or transcranial magnetic stimulation or rTMS or transcranial direct current stimulation or tDCS or cranial electrostimulation or cranial electrotherapy or electrosleep or electronarco*) al fields AND (2009 OR 2010 OR 2011 OR 2012 OR 2013) date started	2	0
Clinical trials.gov	7 February 2013	Field ‐  Interventional studies   CONDITION: chronic* OR back OR musculoskel* OR intractabl* OR neuropath* OR phantom limb OR fantom limb OR neck OR myofasc* OR temp?romandib joint OR central OR post*stroke OR complex OR regional OR spinal cord OR sciatica OR back‐ache OR back*ache OR lumbago   INTERVENTION: brain* OR cortex OR cortical OR transcranial* OR cranial OR magneti* OR direct current OR DC OR electric OR crani* OR electrostim* OR electrotherap* OR electro‐therap* OR non‐invasive OR non*invasive OR theta burst stimulat* OR iTBS OR Ctbs   OUTCOME:  pain 01/01/2009 to 07/02/2013 adult	89	10
Clinical trials.gov	7 February 2013	Field ‐  Interventional studies   CONDITION: chronic* OR back OR musculoskel* OR intractabl* OR neuropath* OR phantom limb OR fantom limb OR neck OR myofasc* OR temp?romandib joint OR central OR post*stroke OR complex OR regional OR spinal cord OR sciatica OR back‐ache OR back*ache OR lumbago   INTERVENTION: transcranial magnetic stimulation OR rTMS OR transcranial direct current stimulation OR tDCS OR cranial electrostimulation OR cranial electrotherapy OR electrosleep OR electronarco*   OUTCOME:  pain	20
Clinical trials.gov	7 February 2013	Field ‐  Interventional studies   CONDITION: fibromyalg* OR trigem* neuralg* OR herp* neuralg* OR diabet* neuropath* OR reflex dystroph* OR sudeck* atroph* OR causalg* OR whip‐lash OR whip*lash or polymyalg* OR failed back surg* OR failed back syndrome   INTERVENTION: brain* OR cortex OR cortical OR transcranial* OR cranial OR magneti* OR direct current OR DC OR electric OR crani* OR electrostim* OR electrotherap* OR electro‐therap* OR non‐invasive OR non*invasive OR theta burst stimulat* OR iTBS OR Ctbs   OUTCOME:  pain	2
Clinical trials.gov	7 February 2013	Field ‐  Interventional studies   CONDITION: fibromyalg* OR trigem* neuralg* OR herp* neuralg* OR diabet* neuropath* OR reflex dystroph* OR sudeck* atroph* OR causalg* OR whip‐lash OR whip*lash or polymyalg* OR failed back surg* OR failed back syndrome   INTERVENTION: transcranial magnetic stimulation OR rTMS OR transcranial direct current stimulation OR tDCS OR cranial electrostimulation OR cranial electrotherapy OR electrosleep OR electronarco*   OUTCOME:  pain	0
HSRProj	11 February 2013	((chronic* or back or musculoskel* or intractabl* or neuropath* or phantom limb or fantom limb or neck or myofasc* or temp?romandib joint or central or post*stroke or complex or regional or spinal cord or sciatica or back‐ache or back*ache or lumbago or fibromyalg* or trigem* neuralg* or herp* neuralg* or diabet* neuropath* or reflex dystroph* or sudeck* atroph* or causalg* or whip‐lash or whip*lash or polymyalg* or failed back surg* or failed back syndrome) AND (brain* or cortex or cortical or transcranial* or cranial or magneti* or direct current or DC or electric or crani* or electrostim* or electrotherap* or electro‐therap* or non‐invasive or non*invasive or theta burst stimulat* or iTBS or Ctbs or transcranial magnetic stimulation or rTMS or transcranial direct current stimulation or tDCS or cranial electrostimulation or cranial electrotherapy or electrosleep or electronarco*))	152	0
Current controlled trials (excl clinicatrials.gov)	11 February 2013	(sudeck* atroph* OR causalg* OR whip‐lash OR whip*lash OR polymyalg* OR failed back surg* OR failed back syndrome) AND (cranial electrotherapy OR electrosleep OR electronarco*)	0	1
Current controlled trials (excl clinicatrials.gov)	11 February 2013	(sudeck* atroph* OR causalg* OR whip‐lash OR whip*lash OR polymyalg* OR failed back surg* OR failed back syndrome) AND (Ctbs OR transcranial magnetic stimulation OR rTMS OR transcranial direct current stimulation OR tDCS OR cranial electrostimulation)	0
Current controlled trials (excl clinicatrials.gov)	25 February 2013	TRANSCRANIAL and PAIN	1
Current controlled trials (excl clinicatrials.gov)	25 February 2013	CRANIAL AND PAIN	4
Current controlled trials (excl clinicatrials.gov)	25/2/13	STIMULATION AND PAIN	75
Current controlled trials (excl clinicatrials.gov)	25 February 2013	(Cortex or cortical) and pain	8
Current controlled trials (excl clinicatrials.gov)	25 February 2013	Brain and pain	33
Current controlled trials (excl clinicatrials.gov)	25 February 2013	(Electro or electrical) and pain	46
Total current controlled trials	25 February 2013		167
Total relevant trial records, all databases				11