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About
This study tests whether galantamine (GAL) reduces HIV-related inflammation and cognitive deficits. In this double-blind placebo-controlled crossover study, HIV-infected individuals (N=120; 60 smokers and 60 non-smokers) will be randomized to 12 weeks of GAL or placebo, followed by a 4-week washout, then 12 weeks of GAL or placebo (arms switched). Outcomes are monocyte/macrophage and T cell activation and neurocognitive performance.
Full description
Although anti-retroviral therapy (ART) enhances life expectancy and overall quality of life (QoL), HIV-infected individuals are increasingly vulnerable to non-AIDS-related diseases including HIV-associated neurocognitive disorders (HAND). Inflammation is a primary mechanism in the pathogenesis of HAND and tobacco use may further exacerbate inflammation. Conversely, nicotine alone has anti-inflammatory effects suggesting that stimulating the cholinergic pathway via pharmacological treatment [e.g., galantamine (GAL)] may suppress inflammation and reverse or prevent neurocognitive deficits in HIV-1 infection. In this double-blind, placebo-controlled crossover study, HIV-infected individuals (N=120; 60 smokers, 60 nonsmokers) will be randomized to 12 weeks of GAL or placebo, followed by a 4-week washout, then 12 weeks of GAL or placebo (arms switched). All subjects will be stable on ART and the GAL dose will follow FDA guidelines. At the beginning and end of each treatment phase, inflammatory biomarkers and viral load will be assessed. Monocyte transcriptomics will also be assessed on a subset of the sample (n=60; 30/group). Neurocognition and clinical outcomes (e.g., QoL) will be measured at baseline and at 4-week intervals during each treatment phase. The primary outcomes are monocyte/macrophage and T-cell activation (CD16, CD163, and CC chemokine receptor type 2 or CCR2 expression; plasma CC chemokine ligand type 2 or CCL2 [MCP-1 or monocyte chemoattractant protein-1], sCD14; CD38/HLA-DR [cluster of differentiation 38/Human Leukocyte Antigen- antigen D Related] on CD8 [cluster of differentiation 8] cells) and neurocognitive performance (processing speed, verbal learning/memory, executive function). Exploratory outcomes include monocyte gene expression patterns and broad plasma cytokine analysis. This study will provide insight into the interactions among nAChR activation, HIV immune activation and pathogenesis, and tobacco use and has translational and therapeutic implications that could improve health outcomes among HIV-infected individuals.
Enrollment
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Inclusion criteria
Eligible subjects will be males and females:
At least 30 years old
Diagnosed with HIV-1 infection
On stable ART regimens (no changes to treatment within 4 weeks of Intake visit)
Viral load of less than or equal to 200 copies/mL
Current cluster of differentiation (CD4) counts greater than 200
If current or past diagnosis of bipolar disorder, eligible if:
Able to communicate in English and provide written informed consent
Will be residing in the geographic area for at least 7 months
Not currently trying to quit smoking
Smoking Status
Exclusion criteria
Subjects who present with and/or self-report the following criteria will not be eligible to participate in the study.
Smoking Behavior
Alcohol/Drug Use
Medical/Psychiatric Conditions
Women who are pregnant, planning a pregnancy or lactating
Current diagnosis of unstable and untreated major depression (if stable for at least 30 days, eligible)
Current or past diagnosis of psychotic disorder
Cancer diagnosis within the past 6 months (except basal cell carcinoma)
Major heart disease or stroke within the past 6 months
Uncontrolled hypertension (systolic blood pressure greater than 160 or diastolic blood pressure greater than 100).
Medical conditions contraindicated for use with galantamine:
Bladder outflow obstruction
Active HCV co-infection (if cured, requires study physician approval)
Liver function tests more than 20% outside of the normal range; Gamma-glutamyl transpeptidase (GGT) values more than 20% outside of the normal range. If Albumin/Globulin ratios are 20% outside of normal range the abnormal value will be evaluated for clinical significance by the Study Physician and eligibility will determined on a case-by-case basis.
Renal disease or renal dysfunction (e.g., serum creatinine levels greater than 1.5 X upper limit of normal). Those with moderate hepatic impairment or creatinine clearance 9 to 59 mL/min shall not exceed the 16 mg/day dose.
Peptic ulcer disease (requires study physician approval)
Suicide risk as indicated by at least one of the following on the Columbia Suicide Severity Rating Scale (the PI and/or study psychologist will be consulted to assess safety and determine eligibility in cases close to the eligibility cutoffs):
Medication
Current use or discontinuation within the last 14 days of:
Daily use of:
Known allergy to study medication.
Subjects will be instructed to refrain from using any study prohibited drugs/medications (both recreational and prescription) throughout their participation in the study.
Primary purpose
Allocation
Interventional model
Masking
63 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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