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Transcranial Magnetic Stimulation to Augment Exposure and Response Prevention for Pediatric OCD

Award Number: R61MH133666
ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 08/01/2023
PERIOD OF PERFORMANCE END DATE: 07/31/2026

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Transcranial Magnetic Stimulation to Augment Exposure and Response Prevention for Pediatric OCD - PROJECT SUMMARY Pediatric OCD is a public health problem and many remain symptomatic even after receiving efficacious treatments. The success of exposure and response prevention (ERP), a first-line behavioral treatment, depends on the ability to refrain from compulsions during exposure tasks. Improving this “therapy critical behavior” is a potentially important strategy for ERP augmentation. Repetitive transcranial magnetic stimulation (rTMS) can be leveraged to stimulate healthier functioning of brain circuits underlying therapy critical behaviors. The overall objective of this R61/R33 is to test whether augmenting ERP with rTMS over cortical nodes of select cortico-striatal circuits implicated in compulsivity can normalize connectivity and enhance response prevention in youth and young adults with OCD. The R61 phase of this project will use a masked RCT design to test whether ERP+TMS engages 1) hypothesized circuits involved in compulsivity and 2) observed response prevention during ERP exposure tasks. Youth ages 12-21 years with OCD will complete a full course of ERP plus randomly assigned TMS regimens of sham, iTBS to dlPFC, or cTBS to pSMA (n=20 per group). Milestones for the R61 phase are determination that at least one active rTMS condition a) changes RSFC in the hypothesized circuit within- and between-subjects and b) is safe and feasible. The R33 phase will use a masked RCT design to establish whether ERP+TMS engagement of the circuit and behavioral targets mediates changes in OCD symptom severity. A new sample of youth ages 12-21 with OCD will receive ERP plus either sham or active TMS stimulation, using the optimal TMS regimen identified in the R61 (n=30 per group). Exploratory analyses in both phases will examine whether neurocognitive task performance predicts symptom change, changes differentially by treatment arm, and corresponds with fMRI- measured metrics of cortico-striatal circuitry. At the end of this award, we will have determined whether rTMS is effective for improving compulsive behavior and functional connectivity in circuits underlying compulsivity, and whether these mediate change in clinical outcomes. If successful, we will be poised to conduct a large-scale trial of rTMS with ERP for pediatric OCD, including a confirmatory test of the linked mechanisms of both treatments. Ultimately, results from this line of research will inform understanding of neural mechanisms in rTMS and OCD and will provide a model for studying linked mechanisms in augmentation trials.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2025 ( Subtotal = $0 )
2025	2024	EMMA PENDLETON BRADLEY HOSPITAL	1011 VETERANS MEMORIAL PKWY	RIVERSIDE	RI	02915	PROVIDENCE	USA	Mental Health Research Grants	000	2	6/12/2025	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2024 ( Subtotal = $1,194,006 )
2024	2024	EMMA PENDLETON BRADLEY HOSPITAL	1011 VETERANS MEMORIAL PKWY	RIVERSIDE	RI	02915	PROVIDENCE	USA	Mental Health Research Grants	001	2	8/15/2024	NON-COMPETING CONTINUATION	$1,194,006
2024	2023	BRADLEY EMMA PENDLETON HOSPITAL	1011 VETERANS MEMORIAL PKWY	RIVERSIDE	RI	02915	PROVIDENCE	USA	Mental Health Research Grants	000	1	10/23/2023	NEW	$0
														Subtotal = $1,194,006

Issue Date FY: 2023 ( Subtotal = $1,224,725 )
2023	2023	BRADLEY EMMA PENDLETON HOSPITAL	1011 VETERANS MEMORIAL PKWY	RIVERSIDE	RI	02915	PROVIDENCE	USA	Mental Health Research Grants	000	1	7/27/2023	NEW	$1,224,725
														Subtotal = $1,224,725

Grand Total All Awards = $2,418,731

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Transcranial Magnetic Stimulation to Augment Exposure and Response Prevention for Pediatric OCD

Award Number: R61MH133666

ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 08/01/2023

PERIOD OF PERFORMANCE END DATE: 07/31/2026

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