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CompletedNCT02027480iMACSUpdated Dec 24, 2015

Antiretroviral Therapy and Inflammatory and Coagulation Biomarkers: iMACS Study

An observational study in HIV (Human Immunodeficiency Virus), AIDS (Acquired Immune Deficiency Syndrome) and Tuberculosis, sponsored by Columbia University. Completed at 9 sites in Kenya. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-12-24.

Sponsored by Columbia University · Observational

Study type
Observational
Time perspective
Prospective
Enrollment
685
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to develop and follow a cohort of human immunodeficiency virus (HIV)-infected adults who are starting HIV drugs at health facilities in Kenya. Blood and urine samples will be collected from all participants in order to establish a sample bank of samples in order to further the understanding of the levels of inflammatory biomarkers and coagulation biomarkers in African patients and the effect of taking HIV drugs on these biomarkers. This study will enroll and follow 685 men and women who are starting HIV drugs and collect blood and urine specimens from them at 4 study visits. These samples will be frozen and stored for future testing related to inflammatory and coagulation biomarkers.

Read the detailed description

Biomarkers have been investigated as predictors of HIV disease progression, i.e. development of acquired immunodeficiency syndrome (AIDS) defining diagnoses or death. There are limited data on the levels of these biomarkers among HIV-infected individuals in sub Saharan Africa and on the effect of antiretroviral therapy (ART) initiation on these levels. In addition, further work is needed to examine the association between such markers and various complications associated with HIV as well as mortality in sub Saharan Africa. The overall aim of this study is to develop a cohort of HIV-infected adults who are initiating ART at health facilities in Kenya and to establish a sample bank of plasma and urine samples in order to further the understanding of the levels of inflammatory biomarkers (IBM) and coagulation biomarkers (CBM) in African patients and the effect of ART initiation on these biomarkers. The study objectives are as follows:

  • To recruit, establish and follow a cohort of HIV-infected individuals who are eligible for initiation of ART through 12 months
  • To obtain blood and urine samples on all cohort participants at baseline, months 2, 6, and 12 for future HIV and related research
  • To describe the demographic and disease characteristics of cohort participants and associations with various biomarkers
02

Conditions studied

  • HIV (Human Immunodeficiency Virus)
  • AIDS (Acquired Immune Deficiency Syndrome)
  • Tuberculosis
  • Non-communicable Diseases (NCD)

Keywords

  • Antiretroviral Therapy (ART)
  • Biomarkers
  • Nyanza Province
  • Kenya
03

In context

Tuberculosis

1,417 studies on the registry are indexed under Tuberculosis; 208 are open to participants now.

This study's enrollment of 685 is above the median of 250 across 421 observational studies indexed under Tuberculosis.

Browse Tuberculosis studies →

Lead sponsor

Columbia University is the lead sponsor of 1,103 studies on the registry; 193 are open to participants now.

Of its 172 completed or terminated interventional studies of FDA-regulated products, 142 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Cohort participants will be consenting HIV-infected men and women initiating ART at four to eight study sites.

Inclusion criteria

  • Men and women at least 18 years of age
  • Known to be HIV positive
  • ART-naïve (with exception of prior exposure to single dose nevirapine in women)
  • Documented ART eligibility based on CD4+ cell count and/or WHO staging
  • Willing to provide locator information and to adhere to study procedures.
  • No intention of permanently moving away from area for coming 12 months

Exclusion criteria

Exclusion Criteria:

  • Individuals who do not meet the inclusion criteria outlined above
  • Women who are currently pregnant
  • Any condition which in the opinion of the investigators would interfere with participation in the study
05

Study design

Time perspective
Prospective
Enrollment
685 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Prospective Cohort

    The study will be a prospective cohort study of HIV-infected adults initiating ART at 4-8 health facilities in Nyanza Province, Kenya. Participants will be asked to take part in four visits over a 12 month period. At each study visit, participants will be asked questions related to demographic characteristics, medical history, including history of/recent medical conditions, family medical history, TB history and smoking status. Participants will also have their height (at baseline visit only) and weight measured for calculation of BMI and blood pressure reading. Blood and urine specimens will be collected and stored at each study visit for future testing.

06

What researchers measure

Primary outcomes

  1. Change in mean high-sensitivity C-reactive protein (hsCRP) levels measured in mg/L

    Blood and urine samples of participants will be analyzed for inflammatory and coagulation biomarkers at four different times during this study to assess the change in marker levels.

    Time frame: Baseline to 12 months

  2. Change in mean interleukin-6 (IL-6) levels measured in ng/mL

    Blood and urine samples of participants will be analyzed for inflammatory and coagulation biomarkers at four different times during this study to assess the change in marker levels.

    Time frame: Baseline to 12 months

Secondary outcomes

  1. Prevalence (% of participants) of smoking in the study population

    Using baseline surveys, human specimens, and other physiological measures (i.e. BP screenings), the prevalence of risk factors for non-communicable diseases will be assessed.

    Time frame: 12 months

  2. Prevalence (% of participants) of high BMI in the study population

    Using baseline surveys, human specimens, and other physiological measures (i.e. BP screenings), the prevalence of risk factors for non-communicable diseases will be assessed.

    Time frame: 12 months

  3. Prevalence (% of participants) of cotinine in blood in the study population.

    Using baseline surveys, human specimens, and other physiological measures (i.e. BP screenings), the prevalence of risk factors for non-communicable diseases will be assessed.

    Time frame: 12 months

  4. Prevalence (% of participants) of hypertension in the study population.

    Using biomarkers, self-report, and other physiological tests (i.e. BP screenings), researchers will assess the prevalence of co-morbid conditions.

    Time frame: 12 months

  5. Prevalence (% of participants) of diabetes in the study population.

    Using biomarkers, self-report, and other physiological tests (i.e. BP screenings), researchers will assess the prevalence of co-morbid conditions.

    Time frame: 12 months

  6. Prevalence (% of participants) of overweight/obesity in the study population.

    Using biomarkers, self-report, and other physiological tests (i.e. BP screenings), researchers will assess the prevalence of co-morbid conditions.

    Time frame: 12 months

  7. Prevalence (% of participants) of tuberculosis in the study population.

    Using biomarkers, self-report, and other physiological tests (i.e. BP screenings), researchers will assess the prevalence of co-morbid conditions.

    Time frame: 12 months

07

Study locations

9 sites
  • Ahero Sub District Hospital
    Ahero, Nyanza, Kenya
  • Ambira Sub District Hospital
    Ambira, Nyanza, Kenya
  • Awasi Mission
    Awasi, Nyanza, Kenya
  • Bondo District Hospital
    Bondo, Nyanza, Kenya
  • Nyakach District Hospital
    Kisumu, Nyanza, Kenya
  • Masogo Sub District Hospital
    Masogo, Nyanza, Kenya
  • Nyangoma Dispensary
    Nyangoma, Nyanza, Kenya
  • Sigomere Health Centre
    Sigomere, Nyanza, Kenya
  • Sondu Health Center
    Sondu, Nyanza, Kenya
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 24, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02027480
Lead sponsor
Columbia University
Collaborators
National Institutes of Health (NIH)
Responsible party
Wafaa Mahmoud El-Sadr (University Professor; Director, ICAP, Columbia University) — Principal investigator
First posted
Jan 6, 2014
Start date
Mar 2014
Primary completion
Oct 2015
Completion
Oct 2015
Last update
Dec 24, 2015

Study contacts

Wafaa M El-Sadr, MD/MPH
principal investigator · ICAP-NY, Columbia University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.

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