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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT03949465
Other study ID # REB18-1175
Secondary ID
Status Withdrawn
Phase N/A
First received
Last updated
Start date May 18, 2023
Est. completion date May 18, 2023

Study information

Verified date September 2023
Source University of Calgary
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Repetitive Transcranial Magnetic Stimulation (rTMS) is a neuromodulatory technique that is effective in major depression. There is preliminary evidence suggesting that rTMS is effective in peripartum depression as well, however this comes from a number of very small studies. The objective is to study the effectiveness of rTMS in peripartum depression. The investigators will do so using an open label design in which participants will receive rTMS for four weeks. The focus is on clinical improvement in depressive symptoms; however the investigators will also look at other aspects such as perinatal anxiety and maternal-infant bonding as measured by self-report questionnaires.


Description:

Peripartum Depression (PPD) is common and severely disabling. Pharmacological intervention remains the first line of treatment, however many patients do not experience any benefits from them. Furthermore, many women are hesitant about pharmaceutical interventions due to the unknown effects on foetal health and lactation. Hence novel treatment approaches are required for such patients. Neuromodulation techniques involve selective targeting of brain areas which are promising avenues for such depressed patients. Transcranial magnetic stimulation (rTMS) is an investigational and therapeutic modality that impacts neurons by delivering patterned energy safely and noninvasively. In response to this patterned energy, neurons fire, and adapt by changing their connection strengths. This change in connection strength is believed to be the underlying mechanism whereby rTMS has therapeutic benefit in conditions such as Major Depressive Disorder (MDD). There are preliminary evidences suggesting that it is effective in PPD as well, however this comes from a number of very small studies and is therefore unclear. Given the promising preliminary evidence, the investigators propose to study the effectiveness of intermittent Theta-Burst Stimulation rTMS (iTBS) to the left dorsolateral prefrontal cortex (DLPFC) in treating PPD. Participants with PPD will receive iTBS rTMS for four weeks (20 sessions) in an open label manner. The primary measure will be clinical improvement in depressive symptoms as measured by change in the Montgomery-Asberg Depression Rating Scale (MADRS) with iTBS-rTMS. In addition, the investigators will look at other aspects such as peripartum anxiety and maternal attachment during treatment and 8 weeks postpartum.


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Study Design


Intervention

Device:
Transcranial Magnetic Stimulator
Repetitive Transcranial magnetic stimulation (rTMS) will be delivered using a MagPro X100 device with B70 coil and the intermittent theta burst (iTBS) protocol to the left dorsolateral prefrontal cortex. Participants will receive daily treatments (Monday-Friday) over four weeks

Locations

Country Name City State
Canada University of Calgary Calgary Alberta

Sponsors (1)

Lead Sponsor Collaborator
University of Calgary

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Other Incidence of Treatment-Emergent Adverse Events Adverse events will be tracked and recorded Daily Monday-Friday throughout study (4 weeks)
Other Side Effects Side effects will be tracked through a comfort rating questionnaire. The comfort rating questionnaire assesses the frequency and severity of side effects common to rTMS treatment. Severity of individual side effects are rated from 1 (none) to 10 (extreme). Daily Monday-Friday throughout study (4 weeks)
Other Toronto Side Effects Scale (1 week) (TSES) The Toronto Side Effects Scale measures frequency and severity of a variety of side effects over the past week. Frequency and severity of each symptom are rated on a scale of 1 - 5, with higher scores corresponding to more frequent/severe symptoms. Administered at baseline, halfway (week 2) and after rTMS treatment (week 4).
Primary Change in Montgomery-Asberg Depression Rating Scale (MADRS) scores Change from baseline in severity of depressive symptoms at 2 weeks and 4 weeks as measured by the MADRS, a clinician-rated instrument. The MADRS is a ten-item diagnostic questionnaire used to measure the severity of depressive episodes. The overall score ranges from 0 - 60. Cutoff points are 0-6 = normal, 7-9 = mild depression, 20-34 = moderate depression, >34 = severe depression. Administered at baseline, at the halfway point (week 2), and after rTMS treatment (week 4).
Secondary Rate of Clinical Remission of Depressive Symptoms Number of participants with a score of Administered at baseline, at the halfway point (week 2), and after rTMS treatment (week 4)
Secondary Rate of Clinical Response in Depressive Symptoms Number of participants with a >/= 50% reduction in MADRS scores Administered at baseline, at the halfway point (week 2), and after rTMS treatment (week 4)
Secondary Perinatal Anxiety Symptoms Perinatal Anxiety symptoms will be assessed using the Perinatal Anxiety Screening Scale (PASS). The PASS measures self-reported feelings of anxiety in the peripartum period. PASS scores range from 0-93, interpretations are as follows: 0-20 = asymptomatic, 21-41 = mild-moderate symptoms, and 42-93 = severe symptoms. Administered at baseline, at the halfway point (week 2), and after rTMS treatment (week 4)
Secondary Anxiety Symptoms The State-Trait Anxiety Inventory (STAI) measures self reported feelings of extrinsic "state" anxiety and intrinsic "trait" anxiety. The STAI scores range from 20-80, with higher scores correlating to greater anxiety. Administered at baseline, at the halfway point (week 2), and after rTMS treatment (week 4)
Secondary Antenatal Maternal Attachment The Maternal Antenatal Attachment Scale (MAAS) assesses self-reported feelings of the mother-child relationship before birth. Scores range from 19-95 on the MAAS, with lower scores representing lower levels of attachment. If the participant is antenatal, the MAAS will be administered at baseline and after rTMS treatment (week 4).
Secondary Postnatal Maternal Attachment The Maternal Postnatal Attachment Scale (MPAS) assesses self-reported feelings of the mother-child relationship after birth. Scores range from16-80 on the MPAS, with lower scores representing lower levels of attachment. If the participant is postnatal, the scale will be administered at baseline and after rTMS treatment (week 4). All participants will complete the MPAS at 8 weeks postpartum.
Secondary Quick Inventory of Depressive Symptomatology- Self-report (QIDS-SR) The QIDS -SR is a self-reported measure of depressive symptoms. Total scores range from 0 to 27, with higher scores representing greater severity of depression. Score interpretations are as follows: 0-7 = normal, 8-12 = mild, 13-16 = moderate, 17-20 = moderate to severe, 21-27 = severe. Administered at baseline, halfway (week 2) and after rTMS treatment (week 4). All participants will complete the QIDS-SR at 8 weeks postpartum.
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