Virtual Incentive Treatment for Alcohol (VITA)

Washington State University

Status: Enrolling

Conditions: Alcohol Abuse; Alcohol Use Disorder; Alcohol Dependence; Alcohol Drinking

Treatments: Behavioral: Computer Based Training for Cognitive Behavioral Therapy for AUD (CBT4CBT); Behavioral: Contingency Management

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT06265506

R01AA031013 (U.S. NIH Grant/Contract)

20320

Details and patient eligibility

About

The overall objective of this program of research is to utilize phosphatidylethanol (PEth), a blood-based biomarker that can detect alcohol use for up to 28 days to deliver a feasible telehealth-based 26-week CM intervention. This study will test a telehealth PEth-based CM model in a sample of adults with AUD (n=200), recruited via online platforms by randomizing individuals to six months of 1) an online cognitive behavioral therapy for AUD (CBT4CBT) and telehealth PEth-based CM (CM condition) or 2) CBT4CBT and reinforcers for submitting blood samples (no abstinence required) (control condition). Investigators will assess group differences in PEth-defined abstinence and regular excessive drinking (PEth >= 200 ng/mL), and alcohol-related harms (e.g., smoking, drug use). This study will address important gaps in CM research by assessing outcomes during a 12-month follow-up, which is much longer than most previous CM studies; using a conceptual model to identify predictors of post-treatment abstinence. Investigators will conduct an economic analysis to place the cost of this model in the context of downstream CM-associated cost-offsets and improvements in personal and public health.

Full description

The overall objective of this study is to utilize phosphatidylethanol (PEth), a blood-based biomarker that can detect alcohol use for up to 28 days to deliver a feasible telehealth-based 26-week CM intervention. In a pilot trial, we developed a telehealth-based PEth CM intervention where participants used a medical device, the TASSO-M20 to self-collect blood for PEth testing under the observation of research staff over Zoom. This intervention used a two-phase approach where the frequency of PEth testing and reinforcement was decreased from once a week, to as infrequently as every four weeks once participants achieved a PEth level consistent with two to four weeks of abstinence (< 20 ng/mL). Seventy-one percent of CM participants achieved >4 weeks of abstinence versus 21% of the treatment as usual (TAU) group, and 43% of CM participants achieved >24 weeks of abstinence compared to 0% of the TAU group (p < 0.05). Based on these promising results, this study will test a telehealth PEth-based CM model in a sample of adults with AUD (n=200), recruited via online platforms by randomizing individuals to six months of 1) an online cognitive behavioral therapy for AUD (CBT4CBT) and telehealth PEth-based CM (CM condition) or 2) CBT4CBT and reinforcers for submitting blood samples (no abstinence required) (control condition). Investigators will assess group differences in PEth-defined abstinence and regular excessive drinking (PEth >= 200 ng/mL), and alcohol-related harms (e.g., smoking, drug use). This study will address important gaps in CM research by assessing outcomes during a 12-month follow-up, which is much longer than most previous CM studies; using a conceptual model to identify predictors of post-treatment abstinence. The primary barrier to the dissemination of this model is the cost of PEth testing and CM reinforcers. Investigators will conduct an economic analysis to place these costs in the context of downstream CM-associated cost- offsets and improvements in personal and public health. If this model increases alcohol abstinence and is cost-effective it could reach millions of Americans with AUD that cannot or do not seek in-person care.

Enrollment: 200 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Had 2 heavy drinking episodes (assigned male at birth > 4 standard drinks (SDs), assigned female at birth > 3 SDs) or ≥14 SDs in the prior 14 days verified by PEth 16:0/18:1 biomarker > 20 ng/mL (indicates at least 2 heavy drinking episodes in past two weeks);
2. Have a DSM-5 diagnosis of a current AUD as assessed by the Structured Clinical Interview for DSM-5;
3. 18+ (individuals over 65 will be assessed for cognitive impairments)
4. Are not receiving treatment for AUD
5. Are able to complete virtual study visits via Zoom

Exclusion criteria

1. have a current diagnosis of severe substance use disorder (other than AUD, tobacco, and cannabis);
2. PEth biomarker ≤ 20 ng/mL (indicates no heavy drinking in past month)
3. inability to provide informed consent based on the UBACC or MacCAT-CR;
4. alcohol withdrawal-related seizure or hospitalization in prior 12 months;
5. psychiatrically or medically unsafe to participate, as assessed by the PI; and/or
6. currently enrolled in alcohol treatment or another alcohol treatment study.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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200 participants in 2 patient groups

Control Condition (Non-contingent Incentives + CBT4CBT)

Active Comparator group

Description:

Participants will receive 8 weeks of Computer Based Training for Cognitive Behavioral Health (CBT4CBT). CBT4BCT is a self paced web-based program that uses videos and lessons to help people learn skills they can use to cut down or stop drinking. Participants will receive a $10 e-gift card for every PEth sample submitted within 48 hours of the visit regardless of the result. Participants will receive gift card incentives when they attend visits and provide blood samples (PEth Samples). Participants will submit PEth samples weekly for the first four weeks of the study, then every two weeks (weeks six, eight), then every four weeks (weeks 12,16, 20, 24), and at week 26. Each time they submit a PEth sample, they will receive gift cards equal to the average CM earnings during the previous month, resulting in total average earnings equivalent to the CM group. This group will receive incentives regardless of the results of their PEth tests.

Treatment:

Behavioral: Computer Based Training for Cognitive Behavioral Therapy for AUD (CBT4CBT)

CM Condition (Contingency Management + CBT4CBT)

Experimental group

Description:

Participants will receive 8 weeks of CBT4CBT and incentives for timely shipping. In addition, those in the CM Condition will receive at least $20 for each PEth-negative sample. Participants will receive an additional $5 for each week of consecutive negative PEth tests, with a $90 cap. In Initiation Phase, participants will attend virtual visits, provide PEth samples, and be rewarded for a decrease in PEth weekly. Maintenance Phase will begin when a participant's PEth sample is \< 20 ng/mL. In Maintenance Phase, participants will attend visits and submit PEth samples every two weeks for four weeks (i.e., weeks 6 \& 8). They will then attend visits and submit PEth samples every four weeks (weeks 12, 16, 20, 24), and on week 26. If participants submit a positive PEth sample, they will return to Initiation Phase and receive $20 for their next negative sample. Participants will attend visits and submit samples weekly until their PEth level is \< 20 ng/mL and they restart Maintenance Phase.

Treatment:

Behavioral: Contingency Management

Behavioral: Computer Based Training for Cognitive Behavioral Therapy for AUD (CBT4CBT)