Plain English Summary
Background and study aims
Major depressive disorder (MDD) is one of the most common mental health conditions in the world. The symptoms can vary greatly from person to person, but they generally include low mood, problems with sleeping and/or eating, and a general loss of interest in life. Treatment often relies heavily on antidepressant medications, which work by increasing the activity and levels of a group of chemicals in the brain (neurotransmitters) and talking therapy. Repetitive transcranial magnetic stimulation (rTMS) is a relatively new treatment of depression. It involves using magnetic fields to stimulate brain cells in order to improve the symptoms of depression. Studies have shown that this treatment can produce changes in the brain that have been found to be related to mood regulation. This study is looking at the effects of targeting rTMS on a particular area of the brain.
Who can participate?
Patients with MDD aged between 15 and 60 years old.
What does the study involve?
All participants receive transcranial magnetic stimulation (rTMS) as a part of their normal care. During the first and sixth week of their treatment, participants are interviewed and asked to complete a questionnaire in order to assess the severity of their depression symptoms and their functioning, in order to find out whether the rTMS treatment has made any different to their condition.
What are the possible benefits and risks of participating?
There are no direct benefits involved with participating in this study. Strong magnetic fields used in MRI and TMS are a risk for patients with magnetic objects or medical devices in the body and so patients with these are unable to take part. There are no other notable risks involved with participating.
Where is the study run from?
Helsinki University Hospital (Finland)
When is the study starting and how long is it expected to run for?
January 2015 to January 2019
Who is funding the study?
Helsinki University Hospital (Finland)
Who is the main contact?
Dr Tuukka Raij
Study website
Contact information
Type
Scientific
Contact name
Dr Tuukka Raij
ORCID ID
http://orcid.org/0000-0002-9834-5570
Contact details
PL 348
Helsinki
00029 HUS
Finland
Additional identifiers
EudraCT/CTIS number
IRAS number
ClinicalTrials.gov number
Protocol/serial number
05012017
Study information
Scientific title
Imaging-based optimization of repetitive transcranial magnetic stimulation for depression
Acronym
Study hypothesis
Effectiviness of rTMS treatment of depression depends on E-field location in the left dorsolateral cortical region.
Ethics approval(s)
Helsinki University Hospital Ethics Committee for gynaecology and obstetrics, pediatrics and psychiatry, 11/06/2015, ref: 215/13/03/03/2015
Study design
Observational cohort study
Primary study design
Observational
Secondary study design
Cohort study
Study setting(s)
Hospital
Study type
Treatment
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Condition
Major depression
Intervention
The brain stimulation treatment and whole-head MRI is part of the normal clinical care of the patients. For the study purposes, location of the stimulating coil is registered to enable computation of stimulation-induced electric fields and to compare the cortical distribution of the fields with treatment response. Patients admitted to the Helsinki University Central Hospital (HUCH) Aurora neuromodulation unit for treatment of MDD with repetitive transcranial magnetic stimulation (rTMS) are first contacted by phone to inquire about their interest in participating in the study. At the first study visit, participants sign informed consent, fill in the patient health questionnaire-9 (phq-9, assessing symptoms of depression), and are evaluated by the study psychiatrist. The evaluation includes the Mini-International Neuropsychiatric Interview (MINI) for diagnostics, Montgomery–Åsberg Depression Rating Scale (MADRS), Social and Occupational Functioning Assessment Scale (SOFAS), and determination of the patient's TMS motor threshold, which is used to customize the rTMS intensity. TMS coil is placed over the EEG electrode location F5 situated over the left dorsolateral prefrontal cortex, and a mark for the coil position is saved in the neuronavigation system. On the subsequent 23 visits, rTMS is applied at the marked position using a TMS neuronavigation system. Exact coil position with respect to the anatomical MRI is recorded during all TMS sessions. TMS is given with a Magstim Rapid stimulator at 110-120% of motor threshold, (4-second trains of 40 pulses at 10 Hz, interleaved with 26-s waiting periods), on 3-5 times days per week at weeks 1-4, on two days at week 5, and once at week 6. At the end of the last rTMS visit at week 6 the participants again fill in the phq-9 and meet the psychiatrist for MADRS and SOFAS assessments. There is no follow-up in the study.
Intervention type
Device
Pharmaceutical study type(s)
Phase
Not Applicable
Drug/device/biological/vaccine name(s)
Transcranial magnetic stimulation
Primary outcome measure
Depression severity is measured using the Montgomery-Åsberg Depression Rating Scale (MADRS) total at week 1 and 6.
Secondary outcome measures
1. Depression severity is measured using The Patient Health Questionnaire (PHQ-9) at week 1 and 6
2. Functioning is measured using Social and Occupational Functioning Assessment Scale (SOFAS) at week 1 and 6
Overall study start date
01/01/2015
Overall study end date
31/01/2023
Reason abandoned (if study stopped)
Eligibility
Participant inclusion criteria
1. Major depressive disorder in MINI interview
2. Aged 15-60 years
Participant type(s)
Patient
Age group
Mixed
Lower age limit
15 Years
Upper age limit
60 Years
Sex
Both
Target number of participants
70
Participant exclusion criteria
1. Serious psychiatric or somatic illness
2. MRI/TMS contraindications
Recruitment start date
01/05/2016
Recruitment end date
31/10/2022
Locations
Countries of recruitment
Finland
Study participating centre
Helsinki University Hospital
Aurora ECT unit
Helsinki
00029 HUS
Finland
Sponsor information
Organisation
Helsinki University Hospital
Sponsor details
PL590
Helsinki
00029 HUS
Finland
Sponsor type
Hospital/treatment centre
Website
http://www.hus.fi/en/Pages/default.aspx
ROR
Funders
Funder type
Hospital/treatment centre
Funder name
Helsinki University Hospital
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
Planned publication in an international peer reviewed journal.
Intention to publish date
31/05/2025
Individual participant data (IPD) sharing plan
The datasets generated during and/or analysed during the current study are not expected to be made available to protect patient identity.
IPD sharing plan summary
Not expected to be made available
Study outputs
Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
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