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A Brief Mobile Intervention to Address Prenatal Cannabis Use

Award Number: R34DA063961
ORGANIZATION: NATIONAL INSTITUTE ON DRUG ABUSE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 04/01/2026
PERIOD OF PERFORMANCE END DATE: 03/31/2029

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A Brief Mobile Intervention to Address Prenatal Cannabis Use - PROJECT SUMMARY Prenatal cannabis use (PCU) is a growing public health concern, linked to fetal harms and risks to the pregnant woman, including depression and cannabis use disorder. The American Academy of Pediatrics and the American College of Obstetricians and Gynecologists advise against PCU, yet its prevalence continues to rise. Despite some understanding of the risks associated with PCU, pregnant women often choose to use cannabis to offset physical and mental health symptoms. The desire to manage adverse symptoms is often accompanied by inconsistent and/or limited unsolicited information offered by healthcare providers on PCU harms or alternatives, and pregnant women are hesitant to disclose PCU to providers even if asked. In this proposed pilot randomized controlled trial (RCT), we will incorporate feedback from experts and pregnant women who use cannabis to tailor our team’s existing, evidence- based, brief, mobile phone-based intervention to target PCU. The intervention will: (1) present accurate information in a motivational enhancement format to reduce resistance around health messaging, correct misperceptions, and provide instruction around discerning credible and accurate information from other sources in the future; and (2) offer harm reduction and cognitive behavioral skills proven to be efficacious in reducing cannabis use in other groups (e.g., use of protective behavioral strategies and distress tolerance skills) to teach alternate strategies to manage physical and mental health symptoms during pregnancy. In an initial phase of the project, we will beta-test our screening, recruitment, and intervention procedures with 15 pregnant women in the first trimester who use cannabis. We will conduct interviews to evaluate feasibility and acceptability of the intervention and refine content based on feedback. We will then pilot test the intervention in a second phase by randomly assigning first trimester pregnant women who use cannabis to the intervention condition (N = 50) or a brief information-only control condition (i.e., treatment as usual; N = 50) to be delivered in the first trimester, with a booster in the third trimester. Follow-up will occur during subsequent trimesters and 3-months post-pregnancy. This first-ever stand-alone, self-directed mobile intervention for PCU has potential for large-scale reduction of cannabis use among an at-risk population. This mobile phone-based intervention can reach pregnant women who may have otherwise received no intervention, or who would have sought information from less credible sources. This and future projects can help identify and address individual-, policy- and system-level barriers to harm reduction services among pregnant women as we develop and test new digital health technologies to deliver novel prevention, treatment, and recovery interventions to a vulnerable population (two NIDA priority areas).


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: 2026 ( Subtotal = $750,511 )
2026	2026	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST FL 3	LOS ANGELES	CA	90089	LOS ANGELES	USA	Drug Use and Addiction Research Programs	000	1	3/26/2026	NEW	$750,511
														Subtotal = $750,511

Grand Total All Awards = $750,511

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A Brief Mobile Intervention to Address Prenatal Cannabis Use

Award Number: R34DA063961

ORGANIZATION: NATIONAL INSTITUTE ON DRUG ABUSE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 04/01/2026

PERIOD OF PERFORMANCE END DATE: 03/31/2029

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