NCT04199117

Brief Summary

This project seeks to identify ways to enhance the reach of evidence-based smoking cessation treatments among adult primary care patients who smoke daily and are not ready to start treatment at study enrollment. The 2x2x2x2 factorial experiment will evaluate the extent to which 4 intervention components promote the use of evidence-based treatments to help smokers not initially ready to quit to cease smoking over 2 years. The intervention components tested include: modest financial incentives for completing an initial counseling session in a smoking cessation treatment (vs. none); automated semi-annual outreach materials sent via patients' preferred communication modality using data in the electronic health record to tailor and personalize invitations to use available treatments to quit smoking (vs. untailored letters); direct, proactive telephone outreach from a tobacco care manager who will promote treatment use and deliver motivational intervention twice per year (vs. none); and access to 3 no-cost telephone smoking cessation counseling calls with combination nicotine replacement therapy (C-NRT) or varenicline (vs. state tobacco quitline and primary care provider referral). Proactive treatment offers will be made up to 22 months after enrollment. Smoking status and use of any smoking cessation treatments will be assessed every 6 months through 2 years of study enrollment. Data from 1664 adult primary care patients meeting inclusion/exclusion criteria will be analyzed to see whether the intervention components have an effect on the use of treatment (primary outcome) and smoking status after 2 years of treatment access (secondary outcome). The project will evaluate the manipulated intervention components first in terms of treatment initiation (defined as rates of completing at least 1 smoking cessation counseling session prior to a target stop-smoking date), and then in terms of end-of-study (2 year post-enrollment) abstinence rates (secondary outcome), and cost-effectiveness in promoting reach (tertiary outcome). This experiment will help to identify health system reach interventions that effectively enhance utilization of stop smoking treatments in an effort to help more smokers quit and to prevent tobacco-induced cancer morbidity and mortality.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
210

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Mar 2020

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 11, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 13, 2019

Completed
3 months until next milestone

Study Start

First participant enrolled

March 11, 2020

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 16, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 16, 2024

Completed
11 months until next milestone

Results Posted

Study results publicly available

September 24, 2025

Completed
Last Updated

September 24, 2025

Status Verified

January 1, 2025

Enrollment Period

4.6 years

First QC Date

December 11, 2019

Results QC Date

September 3, 2025

Last Update Submit

September 3, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Number of Participants Who Initiate Treatment Over 1 Year of Study Enrollment

    The operational definition of treatment initiation is completing at least 1 session of psychosocial treatment in an available smoking cessation treatment. The primary coding of this outcome will be binary (1=any treatment initiation, as defined above, over 1-year of study enrollment period, vs. 0=no evidence of treatment initiation).

    1 year

  • Number of Participants Who Initiate Treatment Over 2 Years of Study Enrollment

    The operational definition of treatment initiation is completing at least 1 session of psychosocial treatment in an available smoking cessation treatment. The primary coding of this outcome will be binary (1=any treatment initiation, as defined above, over the 2-year study enrollment period, vs. 0=no evidence of treatment initiation).

    2 years

Secondary Outcomes (1)

  • Number of Participants Who Achieve Biochemically Verified Seven-day Point Prevalence Abstinence 2 Years Post-enrollment

    2 years from enrollment

Other Outcomes (4)

  • First Year Intervention Costs From Healthcare and Societal Perspectives

    1 year

  • Second Year Intervention Costs From Healthcare and Societal Perspectives

    2 years

  • Number of Participants Who Complete Intensive Treatment

    2 years

  • +1 more other outcomes

Study Arms (16)

Incentive,Tailored,Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Monetary incentives for initiating treatmentBehavioral: Automated tailored outreachBehavioral: Care managementBehavioral: Multiple smoking cessation coaching calls

Incentive,Tailored,Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Monetary incentives for initiating treatmentBehavioral: Automated tailored outreachBehavioral: Care managementOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referral

Incentive,Tailored,No Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Monetary incentives for initiating treatmentBehavioral: Automated tailored outreachBehavioral: Multiple smoking cessation coaching calls

Incentive,Tailored,No Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Monetary incentives for initiating treatmentBehavioral: Automated tailored outreachOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referral

Incentive,Untailored,Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Monetary incentives for initiating treatmentBehavioral: Care managementBehavioral: Untailored outreachBehavioral: Multiple smoking cessation coaching calls

Incentive,Untailored,Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Monetary incentives for initiating treatmentBehavioral: Care managementOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referralBehavioral: Untailored outreach

Incentive,Untailored,No Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Monetary incentives for initiating treatmentBehavioral: Untailored outreachBehavioral: Multiple smoking cessation coaching calls

Incentive,Untailored,No Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have access to incentives for completing a first smoking cessation counseling call up to 4 times over 2 years, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Monetary incentives for initiating treatmentOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referralBehavioral: Untailored outreach

No Incentive,Tailored,Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will have not access to incentives for completing smoking cessation counseling, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Automated tailored outreachBehavioral: Care managementBehavioral: Multiple smoking cessation coaching calls

No Incentive,Tailored,Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Automated tailored outreachBehavioral: Care managementOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referral

No Incentive,Tailored,No Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Automated tailored outreachBehavioral: Multiple smoking cessation coaching calls

No Incentive,Tailored,No Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 tailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Automated tailored outreachOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referral

No Incentive,Untailored,Care Manage,Intensive Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Care managementBehavioral: Untailored outreachBehavioral: Multiple smoking cessation coaching calls

No Incentive,Untailored,Care Manage,Standard Treatment

EXPERIMENTAL

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will receive 5 Tobacco Care Management support and motivational encouragement calls over 2 years, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Behavioral: Care managementOther: Wisconsin Tobacco Quit Line referralOther: Primary care provider referralBehavioral: Untailored outreach

No Incentive,Untailored,No Care Manage,IntensiveTreatment

EXPERIMENTAL

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will not Tobacco Care Management support and motivational encouragement calls, and will have access to 3 smoking cessation quit counseling calls and 12-weeks of either combination nicotine replacement or varenicline up to 4 times over 2 years.

Drug: VareniclineDrug: Combination nicotine patch and nicotine mini-lozenge treatmentBehavioral: Untailored outreachBehavioral: Multiple smoking cessation coaching calls

No Incentive,Untailored,No Care Manage,Standard Treatment

ACTIVE COMPARATOR

Participants randomly assigned to this condition will not have access to incentives for completing smoking cessation counseling, will receive 5 untailored letters promoting use of smoking cessation treatment over 2 years, will not receive Tobacco Care Management support and motivational encouragement calls, and will have access to standard smoking cessation treatment (referral to the state tobacco quitline and/or their primary care provider) over 2 years.

Other: Wisconsin Tobacco Quit Line referralOther: Primary care provider referralBehavioral: Untailored outreach

Interventions

Participants randomized to intensive treatment who choose to use this intervention will receive one 0.5 mg pill for the first 3 days, starting 7 days prior to the target quit day (TQD). They will then use one 0.5 mg pill twice daily for the next 4 days. After the first week of study medication ramp up, participants will use one 1 mg pill twice daily until 11 weeks post-TQD. This will not be used at the same time as combination nicotine replacement therapy.

Incentive,Tailored,Care Manage,Intensive TreatmentIncentive,Tailored,No Care Manage,Intensive TreatmentIncentive,Untailored,Care Manage,Intensive TreatmentIncentive,Untailored,No Care Manage,Intensive TreatmentNo Incentive,Tailored,Care Manage,Intensive TreatmentNo Incentive,Tailored,No Care Manage,Intensive TreatmentNo Incentive,Untailored,Care Manage,Intensive TreatmentNo Incentive,Untailored,No Care Manage,IntensiveTreatment

Participants randomized to intensive treatment who choose to use this intervention will receive 12 weeks of nicotine patches and nicotine mini-lozenges starting on the target quit day (TQD). Participants who smoke more than 10 cigarettes/day will start with a 21 mg patch for 8 weeks, and then titrate down to a 14 mg patch for 2 weeks and then a 7 mg patch for 2 weeks. Participants who smoke 5-10 cigarettes/day will be given 10 weeks of 14 mg patches and then 2 weeks of 7 mg patches. Participants will receive 2 mg mini-lozenges for use starting on the target quit date and the following 12 weeks. Participants will be instructed to use 9-20 mini-lozenges per day (one every 1-2 hours) for the first 6 weeks, then reduce to a mini-lozenge every 2-4 hours for 3 weeks, and then a mini-lozenge every 4-8 hours for 3 weeks. Combination nicotine patch and nicotine mini-lozenge treatment will not be used at the same time as varenicline.

Incentive,Tailored,Care Manage,Intensive TreatmentIncentive,Tailored,No Care Manage,Intensive TreatmentIncentive,Untailored,Care Manage,Intensive TreatmentIncentive,Untailored,No Care Manage,Intensive TreatmentNo Incentive,Tailored,Care Manage,Intensive TreatmentNo Incentive,Tailored,No Care Manage,Intensive TreatmentNo Incentive,Untailored,Care Manage,Intensive TreatmentNo Incentive,Untailored,No Care Manage,IntensiveTreatment

Participants randomized to this intervention will earn an incentive each time they complete a first counseling session in an available treatment, up to 2 rounds of counseling per year, and up to 4 rounds of counseling over 2 years of enrollment.

Incentive,Tailored,Care Manage,Intensive TreatmentIncentive,Tailored,Care Manage,Standard TreatmentIncentive,Tailored,No Care Manage,Intensive TreatmentIncentive,Tailored,No Care Manage,Standard TreatmentIncentive,Untailored,Care Manage,Intensive TreatmentIncentive,Untailored,Care Manage,Standard TreatmentIncentive,Untailored,No Care Manage,Intensive TreatmentIncentive,Untailored,No Care Manage,Standard Treatment

Participants randomized to this intervention will receive 5 tailored letters delivered every 4-6 months. Letter content will be tailored to participant demographics and use of study treatment, and personalized with references to their primary care teams and tobacco care manager. Letters offer encouragement to quit and information about how to access available treatments.

Incentive,Tailored,Care Manage,Intensive TreatmentIncentive,Tailored,Care Manage,Standard TreatmentIncentive,Tailored,No Care Manage,Intensive TreatmentIncentive,Tailored,No Care Manage,Standard TreatmentNo Incentive,Tailored,Care Manage,Intensive TreatmentNo Incentive,Tailored,Care Manage,Standard TreatmentNo Incentive,Tailored,No Care Manage,Intensive TreatmentNo Incentive,Tailored,No Care Manage,Standard Treatment
Care managementBEHAVIORAL

Participants randomized to this intervention will receive 5 live, proactive phone calls lasting 10-15 minutes from as assigned Tobacco Care Manager who will provide manualized support and motivational encouragement, discuss available treatment options, and inform the participant how to initiate treatment when ready to quit.

Incentive,Tailored,Care Manage,Intensive TreatmentIncentive,Tailored,Care Manage,Standard TreatmentIncentive,Untailored,Care Manage,Intensive TreatmentIncentive,Untailored,Care Manage,Standard TreatmentNo Incentive,Tailored,Care Manage,Intensive TreatmentNo Incentive,Tailored,Care Manage,Standard TreatmentNo Incentive,Untailored,Care Manage,Intensive TreatmentNo Incentive,Untailored,Care Manage,Standard Treatment

This is recommended standard care that will be offered to participants who are not medically eligible for varenicline or combination nicotine patch or who are randomized to standard treatment access. The Wisconsin Tobacco Quit Line (WTQL) offers a single 20-minute counseling session to all Wisconsin residents ready to set a date to stop smoking in the next month, at no charge, and offers those who meet their medical eligibility criteria a 2-week supply of either nicotine patches, lozenges, or gums, at no charge. The WTQL assumes full clinical responsibility for participants' use of cessation medications dispensed by the WTQL.

Incentive,Tailored,Care Manage,Standard TreatmentIncentive,Tailored,No Care Manage,Standard TreatmentIncentive,Untailored,Care Manage,Standard TreatmentIncentive,Untailored,No Care Manage,Standard TreatmentNo Incentive,Tailored,Care Manage,Standard TreatmentNo Incentive,Tailored,No Care Manage,Standard TreatmentNo Incentive,Untailored,Care Manage,Standard TreatmentNo Incentive,Untailored,No Care Manage,Standard Treatment

This is a form of recommended standard care that will be offered to participants who are not medically eligible for varenicline or combination nicotine patch or who are randomized to standard treatment access. Participants who choose to use this intervention will be referred electronically to their primary care provider for counseling and/or medication if they express an interest in quitting in the next 30 days and agree to this referral.

Incentive,Tailored,Care Manage,Standard TreatmentIncentive,Tailored,No Care Manage,Standard TreatmentIncentive,Untailored,Care Manage,Standard TreatmentIncentive,Untailored,No Care Manage,Standard TreatmentNo Incentive,Tailored,Care Manage,Standard TreatmentNo Incentive,Tailored,No Care Manage,Standard TreatmentNo Incentive,Untailored,Care Manage,Standard TreatmentNo Incentive,Untailored,No Care Manage,Standard Treatment

Participants randomized to this intervention will receive 5 untailored letters delivered every 4-6 months. Letter content will not be tailored or personalized. Letters will offer information about how to access available treatments.

Incentive,Untailored,Care Manage,Intensive TreatmentIncentive,Untailored,Care Manage,Standard TreatmentIncentive,Untailored,No Care Manage,Intensive TreatmentIncentive,Untailored,No Care Manage,Standard TreatmentNo Incentive,Untailored,Care Manage,Intensive TreatmentNo Incentive,Untailored,Care Manage,Standard TreatmentNo Incentive,Untailored,No Care Manage,IntensiveTreatmentNo Incentive,Untailored,No Care Manage,Standard Treatment

Participants randomized to intensive treatment access who choose to quit will receive three 15-20-minute quit coaching calls from a trained smoking cessation health counselor. Calls will be scheduled for one week pre-quit, one day after the target quit day, and one week after the target quit day.

Incentive,Tailored,Care Manage,Intensive TreatmentIncentive,Tailored,No Care Manage,Intensive TreatmentIncentive,Untailored,Care Manage,Intensive TreatmentIncentive,Untailored,No Care Manage,Intensive TreatmentNo Incentive,Tailored,Care Manage,Intensive TreatmentNo Incentive,Tailored,No Care Manage,Intensive TreatmentNo Incentive,Untailored,Care Manage,Intensive TreatmentNo Incentive,Untailored,No Care Manage,IntensiveTreatment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Primary care patient who receives care at one of the host family medicine or internal medicine clinics
  • \>17 years old
  • Report smoking 7 of the last 7 days at enrollment
  • Report smoking at least five cigarettes per day for at least 6 months at enrollment
  • Able to speak and read English

You may not qualify if:

  • Opted out of Care Manager outreach at the most recent clinic visit or by phone
  • Willing to quit smoking within 30 days (these patients will be referred for immediate treatment rather than enrolled in this study)
  • Inability to use both C-NRT and varenicline due to a contraindication to both treatments at enrollment (allergic reactions, severe renal disease)
  • Current treatment for schizophrenia or a psychotic disorder at enrollment
  • History of suicide attempt in the past 10 years at enrollment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UW Center for Tobacco Research and Intervention

Madison, Wisconsin, 53711, United States

Location

MeSH Terms

Conditions

Cigarette SmokingSmoking Cessation

Interventions

Varenicline

Condition Hierarchy (Ancestors)

Tobacco SmokingSmokingBehaviorTobacco UseHealth Behavior

Intervention Hierarchy (Ancestors)

BenzazepinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsQuinoxalines

Limitations and Caveats

The target sample size to provide sufficient statistical power to detect hypothesized effects was N=1664. The trial was closed to recruitment after randomizing 210 participants because the recruitment model was not working as intended. We converted this trial into a pilot study and launched a new study that used clinic-level random assignment to evaluate different strategies to promote the reach of evidence-based tobacco treatment among adult primary care patients.

Results Point of Contact

Title
Danielle McCarthy, Ph.D.
Organization
University of Wisconsin School of Medicine and Public Health

Study Officials

  • Michael C Fiore, MD,MPH,MBA

    University of Wisconsin, Madison

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Outcomes assessors collecting follow-up data on quit attempts, use of treatment, and smoking status will be blind to experimental condition.
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Model Details: 2 x 2 x 2 x 2 factorial experiment
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 11, 2019

First Posted

December 13, 2019

Study Start

March 11, 2020

Primary Completion

October 16, 2024

Study Completion

October 16, 2024

Last Updated

September 24, 2025

Results First Posted

September 24, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will share

De-identified data will be made available by UW-CTRI in accord with NCI data sharing policies.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
12 months after publication of primary outcome paper
Access Criteria
Prior written request to the PI.

Locations