- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01761643
CCTG 595: Text Messaging Intervention to Improve Adherence to PrEP in High-risk MSM
CCTG 595: A Multicenter, Randomized Study of Text Messaging to Improve Adherence to PrEP in Risky MSM
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
A total of 400 HIV-uninfected men who have sex with men (MSM)and male to female (M to F) transgender individuals with recent high-risk transmission behavior will be enrolled into the study. Each subject will be followed for up to 48 weeks after enrollment of the last subject. The primary endpoint will be measured at 48 weeks.
All subjects will start PrEP with TDF + FTC fixed dose combination given once daily. Subjects will be randomized (1:1) to either the iTAB text messaging adherence reminder intervention with SoC or the SoC alone arm. Subjects placed into the iTAB intervention arm will receive a personalized, automated texting system to maintain adherence and retention. Both groups will receive access to PrEP in accordance with standardized comprehensive methods of prescribing, risk reduction counseling, adherence counseling, and clinical assessments that include safety monitoring, as well as HIV and STD screening.
TDF 300 mg + FTC 200 mg fixed dose combination will be given orally once daily starting at the baseline visit (month 0) and continued throughout the study.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
California
-
Long Beach, California, United States, 90815
- City of Long Beach Department of Health and Human Services
-
Los Angeles, California, United States, 90033
- University Southern California
-
San Diego, California, United States, 92103
- University of California, San Diego
-
Torrance, California, United States, 90502
- Harbor-UCLA Medical Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Man or transgender M to F who has sex with men.
- Age 18 years or older.
Subjects must have substantial ongoing risk of acquisition of HIV as evident by one or more of the following:
- Has at least one HIV infected sexual partner for ≥4 weeks.
- No condom use during anal intercourse with ≥3 male sex partners who are HIV-positive or of unknown HIV status during the last 3 months.
- No condom use during anal sex with ≥1 male partner and STI diagnosis during the last 3 months.
- Negative for HIV infection by rapid HIV test and confirmed negative by NAT or other sensitive method such as antibody- antigen test.
Acceptable laboratory values in the past 30 days:
- Calculated creatinine clearance of at least 60 mL/min by the Cockcroft-Gault formula (eCcr (male) in mL/min = [(140 - age in years) x (lean body weight in kg)] / (72 x serum creatinine in mg/dL)
- Alanine aminotransferase (ALT) and/ or aspartate aminotransferase (AST) < 3 x upper limit of normal (ULN)
- Hemoglobin > 9 g/dL
- Absolute neutrophil count > 750/ mm3
- Platelets > 75,000/ mm3
Exclusion Criteria:
- Unable to give informed consent.
- Active hepatitis B (positive hepatitis B surface antigen (HBSAg) or HBSAg negative/ HB core antibody positive/ HBV PCR positive).
Has substantial medical condition, that in the opinion of the investigator would preclude participation, as defined by
- cardiovascular condition that may lead to an increased risk of complication if placed on study drugs.
- gastrointestinal condition that would impair absorption of study drugs.
- neurological or psychiatric condition that would significantly impair the ability to adhere to PrEP.
- calculated GFR < 60 mL/min.
- alcohol or drug abuse or dependence that would significantly impair the ability to adhere to PrEP (only for those with severe impairment).
- other medical condition that would unacceptably increase the risk of harm from study drug or significantly impair the ability to adhere to PrEP.
- Suspected sensitivity or allergy to the study drug or any of its components.
Currently using an essential product or medication that interacts with the study drug such as the following:
- ART (including nucleoside analogs, non-nucleoside reverse transcriptase inhibitors, protease inhibitors or investigational antiretroviral agents)
Agents with known nephrotoxic potential:
- aminoglycoside antibiotics (including gentamicin)
- IV amphotericin B
- cidofovir
- cisplatin
- foscarnet
- IV pentamidine
- IV vancomycin
- oral or IV gancyclovir
- other agents with significant nephrotoxic potential
Drugs that slow renal excretion
- Probenecid
Immune system modulators
- Systemic chemotherapeutic agents (i.e. cancer treatment medications)
- Ongoing systemic corticosteroids (with the exception of short courses of tapering steroid doses for asthma or other self- limited condition).
- Interleukin-2 (IL-2)
- Interferon (alpha, beta, or gamma)
- Other agent known to have a significant interaction with TDF or FTC
- Proteinuria 2+ or greater by urine dipstick
- Signs or symptoms suggestive of acute HIV infection
- Any other reason or condition that in the opinion of the investigator would interfere with participation, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Standard of Care (SoC)
This proposal will perform a study of potential methods to improve adherence and retention by evaluating standard procedures versus the use of the iTAB platform. All subjects will receive SoC that will include health education, clinical assessments, laboratory safety monitoring, STI and HIV screening, HIV risk reduction counseling, assessment of psycho-social barriers, adherence counseling, and completion of a computer based survey. |
|
Active Comparator: SoC + iTab
Subjects assigned to the iTAB intervention will receive daily dosing reminders that will be sent for the first 6 weeks and then continue with reminders for the duration of the study. Subjects will have visits with the study coordinator to introduce the iTAB texting system. Once the time is identified, the text reminder system is automated. Patients will confirm medication taking via text responses to the personalized reminders. If a participant does not respond on three consecutive occasions, a high alert message (chosen by the participant) will be sent. If the subject does not respond to this message, the study coordinator would initiate phone calls to contact the subject and explore barriers. |
Text messaging reminders to improve adherence to PrEP
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Adherence to PrEP
Time Frame: Baseline to Week 48
|
Proportion of participants adherent to PrEP as measured by TFV-DP dried blood spot (DBS) concentrations > 719 fmol/punch at Week 12 and the last on-drug visit.
|
Baseline to Week 48
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Perfect Adherence to PrEP
Time Frame: Baseline to Week 48
|
Proportion of participants with perfect adherence to PrEP as measured by TFV-DP dried blood spot (DBS) concentrations > 1246 fmol/punch at Week 12 and the last on-drug visit.
|
Baseline to Week 48
|
Rate of HIV Seroconversion
Time Frame: Up to 2.5 years after baseline
|
Determine the rate of HIV seroconversion in PrEP users and compare the iTAB to SOC arms for number of new infections as a proportion at 48 weeks and end of study.
|
Up to 2.5 years after baseline
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Sheldon Morris, MD, MPH, CCTG, UCSD AVRC
Publications and helpful links
General Publications
- Palmer MJ, Henschke N, Villanueva G, Maayan N, Bergman H, Glenton C, Lewin S, Fonhus MS, Tamrat T, Mehl GL, Free C. Targeted client communication via mobile devices for improving sexual and reproductive health. Cochrane Database Syst Rev. 2020 Jul 14;8(8):CD013680. doi: 10.1002/14651858.CD013680.
- Pasipanodya EC, Jain S, Sun X, Blumenthal J, Ellorin E, Corado K, Dube MP, Daar ES, Morris SR, Moore DJ; California Collaborative Treatment Group (CCTG) TAPIR Study Team. Trajectories and Predictors of Longitudinal Preexposure Prophylaxis Adherence Among Men Who Have Sex With Men. J Infect Dis. 2018 Oct 5;218(10):1551-1559. doi: 10.1093/infdis/jiy368.
- Moore DJ, Jain S, Dube MP, Daar ES, Sun X, Young J, Corado K, Ellorin E, Milam J, Collins D, Blumenthal J, Best BM, Anderson P, Haubrich R, Morris SR. Randomized Controlled Trial of Daily Text Messages to Support Adherence to Preexposure Prophylaxis in Individuals at Risk for Human Immunodeficiency Virus: The TAPIR Study. Clin Infect Dis. 2018 May 2;66(10):1566-1572. doi: 10.1093/cid/cix1055.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- CCTG 595
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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