An interventional study of DLPFC facilitatory and SMA inhibitory in Psychomotor Retardation, Psychomotor Slowing and Schizophrenia and Related Disorders, sponsored by University of Bern. Completed at 1 site in Switzerland. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2021-05-12.
Sponsored by University of Bern · Not applicable, Interventional, and Basic science
Psychomotor slowing may occur in major psychiatric disorders, such as major depressive disorders or schizophrenia spectrum disorders. It refers to slowing of fine motor skills, motor planning and gross motor behavior. In major depression and schizophrenia, psychomotor slowing is associated with alterations of premotor cortex, dorsolateral prefrontal cortex and basal ganglia. This randomized, sham-controlled, prospective trial will test, whether 15 sessions of repetitive transcranial magnetic stimulation (rTMS) may ameliorate psychomotor slowing in schizophrenia or major depression.
Psychomotor slowing may occur in major psychiatric disorders, such as major depressive disorders or schizophrenia spectrum disorders. It refers to slowing of fine motor skills, motor planning and gross motor behavior. In major depression and schizophrenia, psychomotor slowing is associated with alterations of premotor cortex, dorsolateral prefrontal cortex and basal ganglia. This randomized, sham-controlled, prospective trial will test, whether 15 sessions of rTMS in 3 weeks may ameliorate psychomotor slowing in schizophrenia or major depression.
Eligible participants will be randomized to one of four arms:
51 studies on the registry are indexed under Psychomotor Disorders; 8 are open to participants now.
This study's enrollment of 45 is below the median of 59 across 36 interventional studies indexed under Psychomotor Disorders.
Browse Psychomotor Disorders studies →University of Bern is the lead sponsor of 209 studies on the registry; 47 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
DSM diagnostic criteria
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
repetitive transcranial magnetic stimulation (rTMS) of 15 Hz over left DLPFC usually effective in depression treatment, probably no specific effect on psychomotor slowing
Other: DLPFC facilitatory
repetitive transcranial magnetic stimulation (rTMS) of 1 Hz over preSMA/SMA should inhibit overactive premotor cortices
Other: SMA inhibitory
intermittend theta burst stimulation (iTBS) over preSMA/SMA should facilitate neural activity within premotor cortices
Other: SMA facilitatory
sham rTMS with a placebo coil over occipital cortex should have no effect at all (no transcranial magnetic stimulation, only sound)
Other: sham TMS
15 Hz stimulation of left dorsolateral prefrontal cortex (DLPFC)(15 sessions/3weeks, 1500 stimuli per session, stimulation intensity 100% of the individual active motor threshold; in total 22500 stimuli
Also known as: rTMS facilitatory DLPFC
1 Hz stimulation of preSMA/SMA (15 sessions/3weeks, 1500 stimuli per session, stimulation intensity 100% of the individual active motor threshold; in total 22500 stimuli
Also known as: rTMS inhibitory SMA
Three pulses of stimulation at 50 Hz of preSMA/SMA, repeated every 200 ms. 2 s trains are repeated every 10 s for a total of 190 s (600 pulses, 200 seconds). intensity 80% of individual active motor threshold; in total 9000 stimuli
Also known as: iTBS facilitatory SMA
Determination of active motor threshold and subsequent stimulation with the placebo coil, with the same sounds but without effects. 15 sessions in three weeks, duration of 20 mins per session
Number of Responders at Week 3
Number of participants with \>30% reduction from baseline in the Salpetriere Retardation Rating Scale, last observation carried forward method applied
Time frame: week 3
Change in Salpetriere Retardation Rating Scale Total Score From Baseline to Week 3
observer based rating scale of the severity of psychomotor slowing, assessment blind to intervention Scores may range from 0 - 60, higher scores indicate worse outcome
Time frame: week 3
Change in Activity Level From Baseline to Week 3
actigraphically (wrist of the non-dominant arm) assessed motor activity during the wake periods of one day, given in counts/h
Time frame: week 3
Change in Catatonia Severity From Baseline to Week 3
observer based rating of catatonia severity with the Bush Francis Catatonia Rating Scale, assessment blind to intervention
Time frame: week 3
Change in Fingertapping Score From Baseline to Week 3
Fingertapping test with the dominant and nondominant index finger for 10 sec, video-taped and blind assessment
Time frame: week 3
Change in Coin Rotation From Baseline to Week 3
test of manual dexterity in both hands, rotation of a specified coin for 10 seconds, video-taped and blinded evaluation
Time frame: week 3
Change in Hand Gesture Performance From Baseline to Week 3
videotaped performance of hand gestures according to the Test of Upper Limb Apraxia (TULIA), blind evaluation and rating
Time frame: week 3
Change in SANS Total Score From Baseline to Week 3
scale for the assessment of negative symptoms, applies to schizophrenia spectrum disorder patients, assessment blind to intervention
Time frame: week 3
Change From HAMD Total Score From Baseline to Week 3
Hamilton Rating Scale for Depression, 21-item version, applies to depression patients, assessment blind to intervention
Time frame: week 3
Change in CAINS Total Score From Baseline to Week 3
the clinical assessment interview for negative symptoms, assessment blind to intervention
Time frame: week 3
Change in PANSS Total and Subscores From Baseline to Week 3
the positive and negative syndrome scale, interview to assess severity of schizophrenia symptoms, applies to schizophrenia spectrum disorder patients, assessment blind to intervention
Time frame: week 3
| Milestone | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS |
|---|---|---|---|---|
| Started | 12 | 12 | 11 | 10 |
| Received intervention | 9 | 11 | 10 | 9 |
| Completed | 7 | 5 | 7 | 4 |
| Not completed | 5 | 7 | 4 | 6 |
Number of participants with \>30% reduction from baseline in the Salpetriere Retardation Rating Scale, last observation carried forward method applied
| responders | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS |
|---|---|---|---|---|
| Number of Responders at Week 3 | 4 | 9 | 0 | 3 |
observer based rating scale of the severity of psychomotor slowing, assessment blind to intervention Scores may range from 0 - 60, higher scores indicate worse outcome
Results for this outcome have not been posted.
actigraphically (wrist of the non-dominant arm) assessed motor activity during the wake periods of one day, given in counts/h
Results for this outcome have not been posted.
observer based rating of catatonia severity with the Bush Francis Catatonia Rating Scale, assessment blind to intervention
Results for this outcome have not been posted.
Fingertapping test with the dominant and nondominant index finger for 10 sec, video-taped and blind assessment
Results for this outcome have not been posted.
test of manual dexterity in both hands, rotation of a specified coin for 10 seconds, video-taped and blinded evaluation
Results for this outcome have not been posted.
videotaped performance of hand gestures according to the Test of Upper Limb Apraxia (TULIA), blind evaluation and rating
Results for this outcome have not been posted.
scale for the assessment of negative symptoms, applies to schizophrenia spectrum disorder patients, assessment blind to intervention
Results for this outcome have not been posted.
Hamilton Rating Scale for Depression, 21-item version, applies to depression patients, assessment blind to intervention
Results for this outcome have not been posted.
the clinical assessment interview for negative symptoms, assessment blind to intervention
Results for this outcome have not been posted.
the positive and negative syndrome scale, interview to assess severity of schizophrenia symptoms, applies to schizophrenia spectrum disorder patients, assessment blind to intervention
Results for this outcome have not been posted.
Collected over Data was collected during and after the daily rTMS sessions, inquiry covered the total three weeks of the trial. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| DLPFC Facilitatory | 0/12 (0%) | 0/12 (0%) | 1/12 (8.3%) |
| preSMA/SMA Inhibitory | 0/11 (0%) | 0/11 (0%) | 1/11 (9.1%) |
| preSMA/SMA Facilitatory | 0/11 (0%) | 1/11 (9.1%) | 0/11 (0%) |
| Sham TMS | 0/10 (0%) | 0/10 (0%) | 1/10 (10%) |
| Event | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS |
|---|---|---|---|---|
| Deterioration of psychiatric disorderPsychiatric disorders | 0/12 | 0/11 | 1/11 | 0/10 |
| Event | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS |
|---|---|---|---|---|
| neck painMusculoskeletal and connective tissue disorders | 0/12 | 0/11 | 0/11 | 1/10 |
| mild nauseaNervous system disorders | 0/12 | 1/11 | 0/11 | 0/10 |
| altered visual perceptionNervous system disorders | 1/12 | 0/11 | 0/11 | 0/10 |
one subject randomized withdrew consent before the baseline assessments
| Age, Categorical(Participants) | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS | Total |
|---|---|---|---|---|---|
| <=18 years | 0 | 0 | 0 | 0 | 0 |
| Between 18 and 65 years | 12 | 11 | 11 | 10 | 44 |
| >=65 years | 0 | 0 | 0 | 0 | 0 |
| Age, Continuous(years) | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS | Total |
|---|---|---|---|---|---|
| Mean | 45.3 ± 15.2 | 38.0 ± 15.6 | 34.2 ± 14.0 | 41.2 ± 15.3 | 39.5 ± 15.0 |
| Sex: Female, Male(Participants) | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS | Total |
|---|---|---|---|---|---|
| Female | 2 | 3 | 5 | 3 | 13 |
| Male | 10 | 8 | 6 | 7 | 31 |
| Race and Ethnicity Not Collected(Participants) | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS | Total |
|---|---|---|---|---|---|
| Count of participants | — | — | — | — | 0 |
| Region of Enrollment(participants) | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS | Total |
|---|---|---|---|---|---|
| Switzerland | 12 | 11 | 11 | 10 | 44 |
| Diagnosis(participants) | DLPFC Facilitatory | preSMA/SMA Inhibitory | preSMA/SMA Facilitatory | Sham TMS | Total |
|---|---|---|---|---|---|
| major depression | 5 | 5 | 5 | 4 | 19 |
| schizophrenia | 7 | 6 | 6 | 6 | 25 |
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: No
Ran from Jun 2016 to primary completion in Jul 2019, 37 months.
Results were first posted in May 2021, 1 year 10 months after primary completion.
Of 22 interventional studies with no phase under Psychomotor Disorders, half reached primary completion within 19 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 37. This study's 37 months is above that.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in May 2021. You cannot join it, but the record below documents what was studied.
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