Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT02797587 |
Other study ID # |
H-35288 |
Secondary ID |
U01AA020780 |
Status |
Completed |
Phase |
Phase 2/Phase 3
|
First received |
|
Last updated |
|
Start date |
July 19, 2017 |
Est. completion date |
December 15, 2020 |
Study information
Verified date |
December 2020 |
Source |
Boston Medical Center |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
This study is a randomized controlled trial (RCT) to compare the effects of varenicline,
cytisine, and nicotine replacement therapy (NRT) to reduce: 1) alcohol use and craving, 2)
smoking; and 3) inflammation and risk for coronary heart disease (CHD) and mortality among
400 HIV-infected Russians, with heavy alcohol consumption and tobacco use.
Description:
HIV-infected heavy drinking smokers are at high risk for coronary heart disease (CHD) and
death. The mechanisms driving increased CHD risk in HIV-infected people are unclear, but are
linked to inflammation. HIV, heavy drinking, and smoking are all pro-inflammatory. HIV viral
suppression with antiretroviral therapy does not eliminate the elevated CHD risk nor the
increased inflammation (i.e., pre-HIV infection levels are not restored). Interventions that
reduce alcohol use, smoking, or both in HIV-infected people could lower inflammation, CHD and
death risk. Varenicline and cytisine are proven therapies for smoking cessation. When
compared to placebo, varenicline has higher cessation rates than cytisine. Human trials
suggest varenicline also has efficacy for reducing alcohol consumption and craving in heavy
drinking smokers. In murine models, cytisine reduces alcohol consumption. The comparative
efficacy of varenicline and cytisine to reduce alcohol consumption and by extension,
inflammation, CHD, and mortality risk, in humans has not been tested, nor has their
comparative effectiveness been tested for smoking. Neither drug has been tested for smoking
cessation against nicotine replacement therapy (NRT) in HIV-infected heavy drinking smokers.
Three compelling reasons to test varenicline and cytisine in HIV-infected heavy drinking
smokers are: 1) both show promise in HIV-uninfected people; 2) the morbidity caused by heavy
drinking and smoking in HIV-infected persons is significant; and 3) treating heavy drinking
and smoking with one medication represents a significant advance in reducing polypharmacy and
improving patient care. Thus, investigators propose a 4-arm placebo-controlled randomized
controlled trial (RCT) among 400 HIV-infected heavy drinking smokers. Trial arms are
varenicline+NRT placebo, cytisine+NRT placebo, NRT+varenicline placebo, NRT+cytisine placebo.
All participants will receive counseling (alcohol & tobacco) and medications (placebo &
active). Specific aims will compare effects of varenicline, cytisine, and NRT at 3 months on
past month % heavy drinking days and alcohol craving, cigarettes per day and smoking
abstinence (verified by carbon monoxide), inflammation (hsCRP, IL-6), CHD (Reynolds risk
score), and mortality (VACS index) risk. Investigators hypothesize that (1) Varenicline has
greater efficacy than NRT for reducing heavy drinking, smoking, inflammation, CHD and
mortality risk; (2) Cytisine has greater efficacy than NRT; and (3) Varenicline has greater
efficacy than cytisine for these outcomes. Investigators will conduct an RCT, Studying
Partial-agonists for Ethanol and Tobacco Elimination in Russians with HIV (St PETER HIV), in
a country with an HIV epidemic and high per-capita alcohol consumption and smoking.
Investigators will recruit from the ongoing Russia ARCH cohort in St. Petersburg (part of our
NIAAA funded HIV/AIDS Alcohol Consortium - URBAN ARCH). If investigator hypotheses are
correct, St PETER HIV could make nicotinic partial-agonists standard care for HIV+ heavy
drinking smokers, and lead to reduced inflammation, CHD and mortality risk through this "one
drug, two diseases" approach. This trial addresses the paucity of RCT data to guide treatment
of these CHD risk factors in HIV-infected people.
The Russia ARCH Cohort and the St PETER HIV study will draw from an established cohort of
HIV-infected smokers and heavy drinkers to compare the effects of two partial nicotinic
receptors, varenicline and cytisine, on alcohol consumption, alcohol craving, smoking,
inflammation, CHD risk and mortality risk. St PETER HIV further addresses the paucity of
randomized controlled trial data to guide treatment of heavy alcohol consumption and smoking
in HIV-infected people.