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Addiction Potential of Very Low Nicotine Filtered Little Cigars
Ohio State University Comprehensive Cancer Center
Smoking (Tobacco) Addiction
The goal of this clinical trial is to learn how reducing the nicotine content in filtered
little cigars can affect the the use of these cigars and lung health in current adult
filtered little cigar users. The main question[s] it aims to answer are:
Are puffing behaviors, appeal/satisfaction, cravi1 expand
The goal of this clinical trial is to learn how reducing the nicotine content in filtered
little cigars can affect the the use of these cigars and lung health in current adult
filtered little cigar users. The main question[s] it aims to answer are:
Are puffing behaviors, appeal/satisfaction, craving suppression, pharmacokinetic effects,
and demand similar between the regular cigars smoked by participants, normal nicotine
study cigars and very low nicotine study cigars? Are health effects and toxicant exposure
similar between the regular cigars smoked by participants, normal nicotine study cigars
and very low nicotine study cigars?
Participants will attend three study visits at OSU. Each visit would last up to 4 hours.
During visits, they will
- fill several surveys
- provide blood samples
- perform breathing tests
- complete smoking sessions using either their own cigars or the study cigars.
Type: Interventional
Start Date: Feb 2025
open study
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Registry for Stage 2 Type 1 Diabetes
Sanofi
Type 1 Diabetes
Stage 2 Type 1 Diabates (T1D) is an early stage of T1D characterized by dysglycemia but
not yet leading to clinical symptoms. Progression of the disease to Stage 3 (clinical
T1D), leads to overt hyperglycemia requiring eventually exogenous insulin.
TZIELD® (teplizumab-mzwv) has been approved to de1 expand
Stage 2 Type 1 Diabates (T1D) is an early stage of T1D characterized by dysglycemia but
not yet leading to clinical symptoms. Progression of the disease to Stage 3 (clinical
T1D), leads to overt hyperglycemia requiring eventually exogenous insulin.
TZIELD® (teplizumab-mzwv) has been approved to delay onset of stage 3 T1D, by the United
States (US) Food and Drug Administration (FDA) for adults and children aged 8 years and
older with Stage 2 T1D.
The purpose of this study is to collect general information on patients with stage 2 T1D
and further information on the long-term effects of TZIELD® in patients with Stage 2 T1D,
treated as per standard of care.
Type: Observational
Start Date: Sep 2024
open study
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Comparing Telehealth-Delivered CBT-I to Web-Based CBT-I to Enhance Sleep, Reduce Fatigue, and Promo1
University of Kansas Medical Center
Multiple Sclerosis
Insomnia
The objective of this RCT is to assess the efficacy of one-on-one telehealth CBT-I
(tCBT-I) compared to web-based CBT-I (wCBT-I) and treatment as usual (TAU) to improve
sleep outcomes (Aim 1), fatigue and quality of life (Aim 2), and promote neuroprotection
(Exploratory Aim 3), and to explore the c1 expand
The objective of this RCT is to assess the efficacy of one-on-one telehealth CBT-I
(tCBT-I) compared to web-based CBT-I (wCBT-I) and treatment as usual (TAU) to improve
sleep outcomes (Aim 1), fatigue and quality of life (Aim 2), and promote neuroprotection
(Exploratory Aim 3), and to explore the characteristics of participants that predict
improvement in sleep outcomes (Exploratory Aim 4). Reassessment of outcomes will be
completed after the 6-week intervention and 6 months following completion of
interventions.
Type: Interventional
Start Date: Oct 2024
open study
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Living Well With Lymphoma
University of Michigan Rogel Cancer Center
Lymphoma
In this study the investigators are proposing to evaluate the efficacy, sustainability,
and mechanisms of 3 months of individualized counseling of the FRD delivered by
registered dietitians, over 8 sessions by phone/video conferencing on fatigue, quality of
life, and associated symptoms in persiste1 expand
In this study the investigators are proposing to evaluate the efficacy, sustainability,
and mechanisms of 3 months of individualized counseling of the FRD delivered by
registered dietitians, over 8 sessions by phone/video conferencing on fatigue, quality of
life, and associated symptoms in persistently fatigued lymphoma cancer survivors compared
to 3 months of individualized counseling of the attention control (matched for time and
frequency of interactions with the FRD) the General Health Curriculum (GHC). The
investigators will randomize and follow 68 lymphoma cancer survivors; accounting for a
~10% drop out rate to achieve a target of 60 patients that will complete the study. The
investigators hypothesize that persistently fatigued lymphoma cancer survivors will
experience improvements in fatigue, quality of life, and symptoms commonly associated
with fatigue, which are then maintained at 15-months post-enrollment; and decreased CRP
and alterations in inflammation-associated DNA methylation consistent with reduced
inflammation from following the FRD as compared to the GHC.
Type: Interventional
Start Date: Mar 2024
open study
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AWARE: Management of ADHD in Autism Spectrum Disorder
Daniel Coury
ADHD
Autism Spectrum Disorder
This study is a pragmatic clinical trial examining the comparative effectiveness of two
stimulant medications (methylphenidate and amphetamine) in the treatment of ADHD in
children and adolescents with autism. Using a sequential, multiple assignment
randomization trial (SMART) design the study will1 expand
This study is a pragmatic clinical trial examining the comparative effectiveness of two
stimulant medications (methylphenidate and amphetamine) in the treatment of ADHD in
children and adolescents with autism. Using a sequential, multiple assignment
randomization trial (SMART) design the study will not only assess these two medications
but also the role of an increasingly popular class of ADHD medication, the alpha-2
agonists. Findings from this study will help improve clinicians' approach to medication
selection and reduce the repeated trials of multiple medications that are current
standard care.
Type: Interventional
Start Date: Oct 2023
open study
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Mixed Methods Study of Health-Related Social Needs in African American Adults With Chronic Kidney D1
Medical College of Wisconsin
Diabetic Nephropathy Type 2 - Uncontrolled
Diabetes Mellitus, Type 2
Chronic Kidney Diseases
The overarching goal of this study is to understand facilitators and barriers to
self-care, develop and refine a culturally tailored intervention to improve clinical
outcomes, quality of life (QOL), and self-care behaviors in African American adults with
diabetic kidney disease (DKD) experiencing h1 expand
The overarching goal of this study is to understand facilitators and barriers to
self-care, develop and refine a culturally tailored intervention to improve clinical
outcomes, quality of life (QOL), and self-care behaviors in African American adults with
diabetic kidney disease (DKD) experiencing health-related social needs (HRSN).
Type: Observational
Start Date: Jan 2023
open study
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Mapping and Quantifying Lymphatic Drainage of the Arm's Alternate Pathway
Beth Israel Deaconess Medical Center
Lymphatic System
Using indocyanine green (ICG) lymphography and lymphoscintigraphy with SPECT/CT imaging,
the aim is to evaluate the anatomy of the lymphatic system pathway in two separate
populations: healthy female volunteers and women with a history of breast cancer who did
not develop lymphedema. expand
Using indocyanine green (ICG) lymphography and lymphoscintigraphy with SPECT/CT imaging,
the aim is to evaluate the anatomy of the lymphatic system pathway in two separate
populations: healthy female volunteers and women with a history of breast cancer who did
not develop lymphedema.
Type: Observational
Start Date: Apr 2022
open study
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Reducing Diabetes Distress Using Cognitive Behavioral Therapy in Young Adults With Type 1 Diabetes
Albert Einstein College of Medicine
Type 1 Diabetes
This project proposes to use telemedicine-delivered cognitive-behavioral therapy (CBT)
enhanced with continuous glucose monitor (CGM) review to target diabetes distress in
adults with type 1 diabetes. The efficacy of CBT for diabetes distress (CBT-DD) will be
tested in comparison to commercial FDA-1 expand
This project proposes to use telemedicine-delivered cognitive-behavioral therapy (CBT)
enhanced with continuous glucose monitor (CGM) review to target diabetes distress in
adults with type 1 diabetes. The efficacy of CBT for diabetes distress (CBT-DD) will be
tested in comparison to commercial FDA-approved CGM only in a randomized controlled
clinical trial. The investigators' central hypothesis is that the addition of a CBT
intervention that targets diabetes distress and self-management directly will yield
clinically significant improvements in both diabetes distress and glycemic control
relative to CGM alone. The investigators propose to recruit 93 adults (age 18-64) with
type 1 diabetes from a national population for an entirely virtual 6-month study over
four years, with targeted recruitment of racial/ethnic minorities. In addition to
standard measurement of HbA1c for glycemic control and validated patient-reported outcome
(PRO) surveys, the investigators plan to innovatively integrate momentary psychological
and behavioral data via smartphone-based ecological momentary assessment with CGM data to
assess day-to-day changes in diabetes distress, affect, self-management, and glycemia
over the course of the trial.
Type: Interventional
Start Date: Jun 2022
open study
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Cognition and Motor Learning Post-stroke
University of Southern California
Stroke
CVA (Cerebrovascular Accident)
This project seeks to determine how post-stroke cognitive impairment moderates motor
learning during walking in older adults with chronic stroke and identify brain structural
markers that mediate this relationship. The chosen experimental design integrates
biomechanical analyses, neuropsychological1 expand
This project seeks to determine how post-stroke cognitive impairment moderates motor
learning during walking in older adults with chronic stroke and identify brain structural
markers that mediate this relationship. The chosen experimental design integrates
biomechanical analyses, neuropsychological assessments, and brain imaging techniques to
determine the impact of post-stroke cognitive impairment severity on two forms of motor
learning (explicit and implicit) and examine the role of the dorsolateral prefrontal
cortex in the relationship between cognition and explicit motor learning. Ultimately,
this work may lead to the development of a more comprehensive, effective treatment
approach to improve walking dysfunction in older adults post-stroke.
Type: Interventional
Start Date: Jan 2023
open study
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Cannabidivarin (CBDV) vs. Placebo in Children With Autism Spectrum Disorder (ASD)
Montefiore Medical Center
Autism Spectrum Disorder
This trial aims to study the efficacy and safety of cannabidivarin (CBDV) in children
with ASD. expand
This trial aims to study the efficacy and safety of cannabidivarin (CBDV) in children
with ASD.
Type: Interventional
Start Date: Apr 2019
open study
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Leg Heating in Pregnant Women With Obesity
University of Texas Southwestern Medical Center
High-risk Pregnancy
Obesity is a major risk factor for hypertensive disorders of pregnancy (HDP). The
underlying mechanisms are largely unclear, but maternal vascular endothelial dysfunction
is likely involved. Endothelial dysfunction in HDP could be attributed to 1) alterations
in the L-arginine/nitric oxide (NO) pat1 expand
Obesity is a major risk factor for hypertensive disorders of pregnancy (HDP). The
underlying mechanisms are largely unclear, but maternal vascular endothelial dysfunction
is likely involved. Endothelial dysfunction in HDP could be attributed to 1) alterations
in the L-arginine/nitric oxide (NO) pathway, and 2) an increase in endothelin-1 (ET-1).
Additionally, augmented sympathetic vasoconstriction may also contribute to HDP. Chronic
(repeated) whole-body heat exposure has been shown to increase NO bioavailability,
decrease ET-1, and cause functional and structural adaptations in the vasculature. All
these can improve vascular function, attenuate sympathetic (re)activity, lower blood
pressure (BP), and reduce cardiovascular risk in non-pregnant individuals. Whether this
is also true after regional (leg) heating in high-risk pregnant women is unknown. The
investigators' central hypothesis is that chronic leg heating will be effective in
improving vascular endothelial function and attenuating sympathetic vasoconstriction,
leading to a reduction of the risk for HDP in pregnant women with obesity. The
overarching goal of this proposal is to determine the vascular and neural effects of
chronic leg heating in obese pregnancy. The study team plans to enroll pregnant women
with obesity between 12-14 weeks of gestation and randomly assign them to either an
intervention group or a control group (1:1 ratio). Participants in the intervention group
will perform 16 weeks of home-based leg heating using a portable sauna blanket up to the
hip (temperature of the blanket will be set at 65°C, 4 times/week, 45 min/session),
whereas women in the control group will set the temperature of the blanket at 35°C at the
same frequency and duration. Participants will be evaluated at baseline and then at 28-30
weeks of gestation. Aim 1 will determine the effects of chronic leg heating on maternal
vascular function and surrogate markers of HDP. Aim 2 will determine the effects of
chronic leg heating on sympathetic vasoconstriction and BP. Findings from this project
will provide insight on the extent and potential mechanisms of how chronic leg heating
works for improving vascular endothelial function and sympathetic vasoconstriction in
pregnant women with obesity. Results obtained will set a foundation for future large
multicenter clinical trials to determine the efficacy and generalizability of home-based
leg heat therapy as a safe, ease-of-use, cost-effective, and non-drug approach for
reducing the risk of HDP.
Type: Interventional
Start Date: May 2025
open study
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Understanding Decentralized Trial Engagement and Clinical Impediments Through Digital Efforts (UDEC1
University of Miami
Heart Diseases
The objective of the UDECIDE study is to demonstrate adherence to decentralized clinical
trials among underrepresented groups with cardiometabolic conditions . expand
The objective of the UDECIDE study is to demonstrate adherence to decentralized clinical
trials among underrepresented groups with cardiometabolic conditions .
Type: Interventional
Start Date: Sep 2025
open study
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Beta-Agonist Versus OnabotulinumtoxinA Trial for Urgency Urinary Incontinence
Women and Infants Hospital of Rhode Island
Urgency Urinary Incontinence
The goal of this clinical trial is to compare treatment outcomes between an oral
medication (beta agonist) versus onabotulinumtoxinA injections in women with urgency
urinary incontinence (UUI).
Participants will be randomly selected to receive one of the two treatments. The primary
outcome measure1 expand
The goal of this clinical trial is to compare treatment outcomes between an oral
medication (beta agonist) versus onabotulinumtoxinA injections in women with urgency
urinary incontinence (UUI).
Participants will be randomly selected to receive one of the two treatments. The primary
outcome measure will be at 3 months, and women will be followed for a total of 12 months.
Based on patient expert input, there are 2 primary outcomes: Treatment satisfaction and
urinary symptom severity.
The study will also have a long-term follow-up component (prospective cohort) including
346 participants from the parent trial to describe treatment continuation, treatment
efficacy, patient direct costs and other secondary outcomes up to 5 years after
treatment.
Type: Interventional
Start Date: Jun 2023
open study
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A Study to Learn About Variant-Adapted COVID-19 RNA Vaccine Candidate(s) in Healthy Children
BioNTech SE
SARS-CoV-2 Virus
Severe Acute Respiratory Syndrome Coronavirus 2
COVID-19
The purpose of this clinical trial is to learn about the safety, extent of the side
effects, and immune responses of the study vaccine (called variant-adapted BNT162b2
RNA-based vaccine) in healthy children. The trial is divided into 5 individual studies or
substudies based on age group and prior h1 expand
The purpose of this clinical trial is to learn about the safety, extent of the side
effects, and immune responses of the study vaccine (called variant-adapted BNT162b2
RNA-based vaccine) in healthy children. The trial is divided into 5 individual studies or
substudies based on age group and prior history of COVID-19 vaccinations. All
participants in each of the 5 sub-studies will receive study vaccine as a shot depending
on what group they are in.
- Substudy A design: Phase 1 includes participants 6 months through less than 4 years
3 months of age who have not received a previous coronavirus vaccination (COVID-19
vaccine naïve) and will receive 3 doses of study vaccine as their initial series,
followed by a fourth dose of study vaccine. Phase 2/3 includes participants 6 months
through less than 5 years of age who have not received a previous coronavirus
vaccination (COVID-19 vaccine naive) and will receive 1, 2, or 3 doses of study
vaccine, depending on what group they are in.
- Substudy B design: includes participants 6 months through less than 5 years of age
who have either received 2 or 3 prior doses of BNT162b2 and will receive study
vaccine as their third or fourth dose.
- Substudy C design: Phase 1 includes participants 6 months through less than 5 years
of age who have received 3 prior doses of BNT162b2 and will receive study vaccine as
their fourth dose.
- Substudy D design: includes participants 5 through less than12 years of age who have
received 2 or 3 prior doses of BNT162b2 and will receive study vaccine as their
third or fourth dose.
- Substudy E design: includes participants 5 through less than 12 years of age who
have not received a previous coronavirus vaccination (COVID-19 vaccine naive) and
will receive a single dose of study vaccine.
Type: Interventional
Start Date: Sep 2022
open study
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Low-dose Buprenorphine Initiation for Opioid Use Disorder
Montefiore Medical Center
Opioid Use Disorder
The purpose of this study is to test whether low-dose buprenorphine initiation for
treatment of opioid use disorder is safe and effective. expand
The purpose of this study is to test whether low-dose buprenorphine initiation for
treatment of opioid use disorder is safe and effective.
Type: Interventional
Start Date: Nov 2024
open study
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Assessment of the Ocular Microbiome in Health and Disease
Vanderbilt University Medical Center
Microbial Colonization
Eye Diseases
Ophthalmopathy
The objective of this application is to illustrate the core constituents of the ocular
surface microbiome, describe factors that promote colonization, and assess the ocular
microbiome's role in the health of the anterior segment. We will conduct a prospective,
observational cohort study, including1 expand
The objective of this application is to illustrate the core constituents of the ocular
surface microbiome, describe factors that promote colonization, and assess the ocular
microbiome's role in the health of the anterior segment. We will conduct a prospective,
observational cohort study, including a longitudinal analysis of the ocular microbiome in
adults.
Type: Observational
Start Date: Sep 2023
open study
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Treat-to-Target Serum Urate Versus Treat-to-Avoid Symptoms in Gout
Massachusetts General Hospital
Gout
The TRUST study is a randomized, controlled multicenter study to evaluate the management
of gout by comparing two commonly used treatment strategies for gout (TTT vs TTASx) to
determine the most beneficial for a patient-centered gout outcomes, as well as relevant
cardiovascular-metabolic-renal endp1 expand
The TRUST study is a randomized, controlled multicenter study to evaluate the management
of gout by comparing two commonly used treatment strategies for gout (TTT vs TTASx) to
determine the most beneficial for a patient-centered gout outcomes, as well as relevant
cardiovascular-metabolic-renal endpoints.
Type: Interventional
Start Date: Feb 2024
open study
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Administration of Allogeneic-MSC in Patients With Non-Ischemic Dilated Cardiomyopathy
Joshua M Hare
Non-ischemic Dilated Cardiomyopathy
The purpose of this study is to evaluate the safety and effectiveness of an experimental
drug called human allogeneic mesenchymal stem cell therapy. expand
The purpose of this study is to evaluate the safety and effectiveness of an experimental
drug called human allogeneic mesenchymal stem cell therapy.
Type: Interventional
Start Date: May 2021
open study
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Stereotactic Radiosurgery for Essential Tremor and Parkinsonian Tremor
Vanderbilt University Medical Center
Tremor
Essential Tremor
Parkinson Disease
Radiosurgery
Quality of Life
The purpose of this study is to determine the changes in quality of life and degree of
tremor for patients with essential tremor or Parkinsonian tremor who are treated by
stereotactic radiosurgery (SRS). This is a questionnaire-based study. Please see Detailed
Description below for more information. expand
The purpose of this study is to determine the changes in quality of life and degree of
tremor for patients with essential tremor or Parkinsonian tremor who are treated by
stereotactic radiosurgery (SRS). This is a questionnaire-based study. Please see Detailed
Description below for more information.
Type: Observational
Start Date: Feb 2013
open study
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Exercise Facilitation of Adolescent Fear Extinction, Frontolimbic Circuitry, and Endocannabinoids
Wayne State University
Adolescence
Anxiety disorders commonly begin during adolescence, and are characterized by deficits in
the ability to inhibit or extinguish pathological fear. Recent research has provided new
understanding of how fear is learned and can be regulated in the adolescent brain, and
how the endocannabinoid system sh1 expand
Anxiety disorders commonly begin during adolescence, and are characterized by deficits in
the ability to inhibit or extinguish pathological fear. Recent research has provided new
understanding of how fear is learned and can be regulated in the adolescent brain, and
how the endocannabinoid system shapes these processes; however, these advances have not
yet translated into improved therapeutic outcomes for adolescents with anxiety. This
study will test whether a behavioral intervention, acute exercise, can help to improve
fear regulation by enhancing brain activity and endocannabinoid signaling. This line of
research may ultimately lead to more effect treatments for adolescent anxiety, and to new
preventive strategies for at-risk youth.
Type: Interventional
Start Date: May 2024
open study
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Pharyngeal Exercise (Plus Protein)
NYU Langone Health
Pre-Frail Older Adults
The swallowing muscles are prone to decreased strength and function as part of the
natural aging process which can lead to difficulty swallowing, malnutrition, and frailty.
Exercise and nutrition are powerful stimulators of muscular change. The proposed research
will investigate the effectiveness o1 expand
The swallowing muscles are prone to decreased strength and function as part of the
natural aging process which can lead to difficulty swallowing, malnutrition, and frailty.
Exercise and nutrition are powerful stimulators of muscular change. The proposed research
will investigate the effectiveness of a 12-week proactive regimen of swallowing exercises
(with or without daily protein supplement drinks) to improve the composition, force, and
physiology of the swallowing muscles and explore the relationship to overall health and
physical function in 80 community-dwelling older adults. Each participant will serve as
their own control for 12 weeks before being randomized to complete swallowing exercises
alone or swallowing exercises with protein drinks.
Type: Interventional
Start Date: May 2024
open study
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Overcoming Nicotine Dependence to Enable Quitting
Rush University Medical Center
Tobacco Use
Smoking Cessation
Smoking Behaviors
Nicotine Dependence
Nicotine Withdrawal
Tobacco use disorder is a chronic, relapsing health condition that necessitates a chronic
care approach. However, traditional smoking cessation treatment programs allocate nearly
all their resources only to those smokers who are willing to set a quit date. This is
problematic because few smokers ar1 expand
Tobacco use disorder is a chronic, relapsing health condition that necessitates a chronic
care approach. However, traditional smoking cessation treatment programs allocate nearly
all their resources only to those smokers who are willing to set a quit date. This is
problematic because few smokers are ready to set a quit date at any given time, and a
smoker's stated intention to quit can change rapidly.
One novel potential treatment strategy is to foster practice quitting (PQ), defined as
attempting to not smoke for a few hours or days, without pressure or expectation to
permanently quit. Although a growing body of evidence supports the role of practice
quitting in fostering permanent quit attempts and cessation, there is a significant
knowledge gap regarding which treatment strategies should be used to engage smokers in
practice quitting. The proposed study will test the role of PQ counseling vs.
Motivational Interviewing (MI) counseling, and NRT sampling (four-week supply of nicotine
lozenges and patches) vs. none.
Type: Interventional
Start Date: Mar 2023
open study
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Paradoxical Lucidity in Severe End-Stage Dementia
NYU Langone Health
Dementia
Cognitive decline in dementia is considered irreversible, however episodes of paradoxical
lucidity (PL) in severe dementia suggest other mechanisms may be in play. Beyond
anecdotal reports of transient PL events occurring in patients predominantly in
late-stage dementia and typically lasting anywhe1 expand
Cognitive decline in dementia is considered irreversible, however episodes of paradoxical
lucidity (PL) in severe dementia suggest other mechanisms may be in play. Beyond
anecdotal reports of transient PL events occurring in patients predominantly in
late-stage dementia and typically lasting anywhere from a few minutes to several hours,
little is known about PL. The study team proposes to develop and conduct a mixed methods
prospective study of PL during end stage advanced dementia, creating a definition and
measurement scale for PL in advanced dementia, and identifying the potential electro
cortical biomarkers of PL in advanced dementia. This study will be divided in two phases:
Phase I and Phase II. During Phase I, the study team will collect sufficient and
necessary data through an online survey and focus groups as well as assess the safety and
feasibility of using symptom diaries (also known as daily trackers or journals) and
real-time video EEG monitoring (vEEG). After preliminary review of the study procedures,
the PI will decide whether to move onto the Phase II. The second phase will aim to expand
the study population and refine study methods as well as create a definition and
measurement scale for PL in advances dementia.
Type: Observational
Start Date: Jun 2022
open study
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AIM's Writing for Healing: A Workshop for Individuals Living With Paralysis
University of Alabama at Birmingham
Spinal Cord Injuries
Multiple Sclerosis
Transverse Myelitis
Amyotrophic Lateral Sclerosis
The UAB Institute for Arts In Medicine (AIM) is currently implementing an expressive
emotional writing pilot project for adults with paralysis caused by neurological
conditions such as traumatic head or spinal cord injury. expand
The UAB Institute for Arts In Medicine (AIM) is currently implementing an expressive
emotional writing pilot project for adults with paralysis caused by neurological
conditions such as traumatic head or spinal cord injury.
Type: Observational
Start Date: Sep 2020
open study
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Leukapheresis Procedures to Obtain Plasma and Lymphocytes for Research Studies on Antiretroviral Na1
National Institute of Allergy and Infectious Diseases (NIAID)
HIV
There is evidence that early and aggressive treatment with antiretroviral drugs can
prevent the loss of immune cell function that accompanies HIV infection. This study will
use leukapheresis (drawing blood, separating out the white cells and returning the blood
to the patient) to obtain blood cells1 expand
There is evidence that early and aggressive treatment with antiretroviral drugs can
prevent the loss of immune cell function that accompanies HIV infection. This study will
use leukapheresis (drawing blood, separating out the white cells and returning the blood
to the patient) to obtain blood cells from HIV-infected patients in either the acute or
chronic stage of infection who are being treated with early highly active antiretroviral
therapy (HAART). Leukapheresis is necessary to obtain enough cells to delineate the
response of B cells to CD4+ T cell help, the CD8 factors associated with suppression of
viral replication and normalization of immune function, and natural killer function
relative to HIV disease.
Study participants will be adult (older than 18 years) HIV primary or acutely affected
patients (those with a history of exposure to HIV but not yet showing chronic symptoms of
HIV disease) and HIV chronically infected patients (those infected with HIV for longer
than 12 months or showing other symptoms of HIV disease) who are not receiving HAART at
the beginning of the study. The study seeks to enroll 30 primary and 30 chronic patients.
Pregnant women will not be enrolled in the study; women who become pregnant will be
dropped from the study.
Leukapheresis will be performed on each patient before HAART therapy begins and then
three times a year. Each session will take between 1 and 3 hours.
This longitudinal study will enable researchers to examine the function of certain B
cells, natural killer cells, and CD8+ T cells in people who do not have chronic HIV
disease and in those who do have the disease and are treated with HAART.
Type: Observational
Start Date: Jul 2002
open study
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