Safety and Effectiveness of Low-Dose Methotrexate for Reducing Inflammation in HIV-Infected Adults on ARV Medications



Status:Completed
Conditions:Infectious Disease, HIV / AIDS, HIV / AIDS
Therapuetic Areas:Immunology / Infectious Diseases
Healthy:No
Age Range:40 - Any
Updated:1/12/2018
Start Date:January 31, 2014
End Date:December 8, 2016

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Effect of Reducing Inflammation With Low Dose Methotrexate on Inflammatory Markers and Endothelial Function in Treated and Suppressed HIV Infection

People with HIV infection who are taking antiretroviral therapy (ART) could be at risk for
cardiovascular disease (CVD), which can be caused by inflammation. Methotrexate (MTX) is a
medication used to treat inflammation in people with rheumatoid arthritis. This study
evaluated the safety and effectiveness of low-dose methotrexate (LDMTX) at reducing
inflammation in HIV-infected adults.

HIV-infected people taking ART have a higher than expected risk of premature CVD. Many
factors likely contribute to this risk, including chronic inflammation. Strategies to reduce
inflammation in HIV-infected people may be beneficial in reducing CVD risk, as well as other
conditions, including kidney disease, bone disease, and neurologic complications. MTX is an
anti-inflammatory medication used to treat people with rheumatoid arthritis. This study
evaluated the safety and effectiveness of LDMTX at treating inflammation and on endothelial
function in virologically suppressed HIV-infected adults who had CVD or were at increased
risk of CVD.

The total study duration was 36 weeks. Prior to enrolling in the study, participants had a
chest X-ray. Participants were randomly assigned to receive LDMTX or placebo for 24 weeks.
Participants continued taking their antiretroviral (ARV) medications as usual; ARVs were not
provided by the study. At study entry, participants underwent a medical and medication
history, physical examination, blood collection, and adherence assessments. From study entry
through Week 1, participants received either 5 mg of LDMTX or placebo once a week. For
participants who were clinically stable at the Week 1 study visit, the dose of LDMTX or
placebo was increased to 10 mg once a week through Week 12. For participants who were
clinically stable at the Week 12 study visit, the dose of LDMTX or placebo was increased to
15 mg once a week through Week 24. Participants who did not meet the criteria for dose
escalation were re-evaluated at the following study visit. In addition to LDMTX or placebo,
all participants also received 1 mg of folic acid once a day from study entry throughout Week
24. After taking the final dose of LDMTX or placebo, all participants continued taking folic
acid for an additional 4 weeks.

Post-entry visits occurred at Weeks 1, 2, 4, 8, 12, 18, 24, and 36. These included a physical
examination, blood collection, and adherence assessments; an arm ultrasound test was
performed at Weeks 12 and 24. At Week 2, some participants took part in a pharmacokinetic
(PK) assessment, which involved undergoing a blood collection several times over a 6-hour
period.

Inclusion Criteria:

- HIV-1 infection, documented by any licensed rapid HIV test or HIV enzyme or
chemiluminescence immunoassay (E/CIA) test kit at any time prior to study entry and
confirmed by a licensed Western blot or a second antibody test by a method other than
the initial rapid HIV and/or E/CIA, or by HIV-1 antigen, plasma HIV-1 RNA viral load.

- Had to be on continuous ART for greater than or equal to 24 weeks prior to study
entry. This was defined as continuous active therapy for the 24-week period prior to
study entry with no treatment interruption longer than 7 consecutive days and a total
duration off treatment of no more than 14 days in the 90 days prior to study entry.

- CD4 T-cell count greater than or equal to 400 cells/mm^3 obtained within 60 days prior
to study entry by any U.S. laboratory that has a Clinical Laboratory Improvement
Amendments (CLIA) certification or its equivalent

- HIV-1 RNA level below the limit of quantification using a FDA-approved assay for at
least 24 weeks prior to study entry and confirmed within 60 days prior to study entry.
The assay used for eligibility could be performed by any U.S. laboratory that had a
CLIA certification or its equivalent. NOTE: Single determinations that are between the
assay quantification limit and 200 copies/mL were allowed as long as the preceding and
subsequent determinations are below the level of quantification.

- The following laboratory values obtained within 60 days prior to study entry by any
U.S. laboratory that has a CLIA certification or its equivalent:

1. Fasting glucose less than 180 mg/dL

2. Alanine aminotransferase (ALT) [serum glutamic pyruvic transaminase (SGPT)] less
than 2 times the upper limit of normal (ULN)

3. Aspartate aminotransferase (AST) [serum glutamic oxaloacetic transaminase (SGOT)]
less than 2 times the ULN

4. Estimated creatinine clearance (CrCl) greater than or equal to 50 mL/min by
Cockcroft-Gault. NOTE: Candidates who were taking tenofovir disoproxil fumarate
(TDF) as part of their ART regimen should have an estimated CrCl greater than or
equal to 60 mL/min.

5. White blood cell (WBC) greater than 3,000/mm^3

6. Hemoglobin greater than 12.0 g/dL

7. Platelets greater than 150,000/mm^3

- Female candidates who were postmenopausal (i.e., of non-childbearing potential) were
defined as having either:

1. Appropriate medical documentation of prior hysterectomy and/or complete bilateral
oophorectomy (i.e., surgical removal of the ovaries, resulting in "surgical
menopause" and occurring at the age at which the procedure was performed), OR

2. Permanent cessation of previously occurring menses as a result of ovarian failure
with documentation of hormonal deficiency by a certified healthcare provider
(i.e., "spontaneous menopause").

- Male candidates must agree not to participate in a conception process (i.e., active
attempt to impregnate, sperm donation). If participating in sexual activity that could
lead to pregnancy, the male participant must agree to the use of TWO reliable forms of
contraceptives simultaneously while on study and for a minimum of 3 months after
therapy.

- Candidates who were not of reproductive potential (defined as women who have been
postmenopausal for at least 24 consecutive months or men who have documented
vasectomy) were eligible for the study without requiring the use of contraceptives.

- Moderate or high CVD risk defined as:

A) Documented CVD as assessed by meeting at least 1 of 3 criteria below:

1. Coronary artery disease (CAD): prior myocardial infarction (MI) due to
atherosclerosis, coronary artery bypass graft surgery, percutaneous coronary
intervention, or angiographic CAD with luminal diameter stenosis of at least one
coronary artery at least 50%.

2. Cerebrovascular disease: prior ischemic stroke of carotid origin, carotid
endarterectomy or stenting, or angiographic carotid stenosis of at least 50%.

3. Peripheral arterial disease: prior lower extremity arterial surgical or percutaneous
revascularization procedure, or angiographic lower extremity arterial stenosis of at
least 50%.

OR

B) Controlled type II diabetes mellitus (HbA1C less than or equal to 8.0% within the past
90 days prior to study entry, regardless of use of medications)

OR

C) Any one of the following CVD risk factors below:

1. Current smoking: self-report of smoking at least a half a pack of cigarettes a day, on
average, in the past month.

2. Hypertension (HTN): two consecutive blood pressure (BP) readings with either systolic
greater than 140 mm Hg or diastolic greater than 90 mm Hg; or on antihypertensive
medications.

3. Dyslipidemia: defined as non-high-density lipoprotein (HDL)-C greater than 160 mg/dL
or HDL-C less than or equal to 40 mg/dL, regardless of medication use.

4. High-sensitivity C-reactive protein (hsCRP) greater than or equal to 2 mg/L at
screening

Ability and willingness of candidate to provide informed consent

- Completion of the Flow-mediated Vasodilation (FMD) assessments. NOTE: The FMD must be
performed at the site and confirmed as acceptable by the University of Wisconsin
Atherosclerosis Imaging Research Program (UW AIRP) core lab prior to study entry. If
the FMD is deemed unacceptable, a repeat scan must be performed prior to enrollment.

- Appropriate documentation from medical records of prior receipt of pneumococcal
vaccination (with both the 13-valent conjugant vaccine [PCV13] and 23-valent
pneumococcal polysaccharide vaccine [PPV23]) within the last 5 years. If no
documentation is available, then the PCV13 and PPV23 series (PCV13 vaccine followed by
PPV23 vaccine at least 8 weeks later) should be completed more than 14 days prior to
study entry.

Exclusion Criteria:

- Acute or serious illness requiring systemic treatment and/or hospitalization within 60
days prior to study entry. NOTE: Treatment should have ended at least 60 days prior to
study entry for eligibility.

- Documentation of any CDC category C AIDS-indicator condition or oropharyngeal
candidiasis (thrush) within 90 days prior to study entry

- Receipt of antibiotic therapy within 30 days prior to study entry

- Latent tuberculosis (TB) infection (defined as a positive purified protein derivative
[PPD] greater than or equal to 5 mm, positive interferon-gamma release assay, or
positive T-spot test at any time in the past) or evidence of latent TB on the
screening chest x-ray that had not been completely treated or was treated within the
past 6 months prior to study entry

- TB disease that required treatment within 48 weeks prior to study entry

- Life-threatening fungal infection requiring treatment, in the opinion of the site
investigator, within 48 weeks prior to study entry

- Herpes-zoster viral infection that required treatment within 90 days prior to study
entry

- A history of or current, active hepatitis B infection defined as positive hepatitis B
surface antigen (HBsAg) test or positive hepatitis B virus (HBV) DNA in candidates
with isolated hepatitis B core antibody (HBcAb) positivity, defined as negative HBsAg,
negative hepatitis B surface antibody (HBsAb), and positive HBcAb within 24 weeks
prior to study entry. NOTE: Candidates who were positive for hepatitis B surface
antigen but who were HBV DNA negative were permitted in the study.

- Chronic hepatitis C infection defined as a positive hepatitis C antibody and positive
hepatitis C RNA at any time prior to study entry. NOTE: Candidates who were positive
for hepatitis C antibody but whowerehepatitis C virus (HCV) RNA negative are permitted
in the study. Candidates who had been treated for hepatitis C should be HCV RNA
negative for at least 24 weeks after completion of therapy to be eligible for the
study.

- Previously diagnosed myelodysplasia syndrome

- Treated lymphoproliferative disease less than or equal to 5 years prior to study entry

- Clinically significant lung disease on the screening chest x-ray that, in the opinion
of the site investigator, places the candidate at increased risk of lung toxicity
(e.g., history of pulmonary fibrosis, interstitial lung disease, or pulmonary
lymphoproliferative disease)

- Use of immunomodulators (e.g., interleukins, interferons, cyclosporine), HIV vaccine,
systemic cytotoxic chemotherapy, or investigational therapy within 30 days prior to
study entry

- Change in the ART regimen in the 12 weeks prior to study entry or intended
modification of ART during the study. NOTE: Modifications of ART doses during the 12
weeks prior to study entry were permitted. In addition, the change in formulation
(e.g., from standard formulation to fixed-dose combination) was allowed within 12
weeks prior to study entry. A within class single drug substitution (e.g., switch from
nevirapine to efavirenz or from atazanavir to darunavir) is allowed within 12 weeks
prior to study entry, with the exception of a switch from any other nucleoside reverse
transcriptase inhibitor (NRTI) to abacavir. No other changes in ART in the 12 weeks
prior to study entry were permitted.

- Known allergy/sensitivity or any hypersensitivity to components of study drug(s) or
their formulation

- Average daily consumption of three or more alcoholic beverages for 4 weeks prior to
study entry or intention to consume an average of two or more alcoholic beverages a
day during the study. NOTE: An alcohol-containing beverage is defined as 12 ounces of
beer, 4 ounces of wine, or 1 ounce of spirits.

- Active drug or alcohol use or dependence that, in the opinion of the site
investigator, would interfere with adherence to study requirements

- Changes in lipid-lowering or antihypertensive medication within 90 days prior to study
entry or expected need to modify these medications during the study. NOTE:
Lipid-lowering medication includes: statins, fibrates, niacin (dose greater than or
equal to 250 mg daily), and fish-oil/omega 3 fatty acids (dose greater than 1000 mg of
marine oils daily).

- Vaccination (e.g., influenza, pneumococcal polysaccharide) within 14 days prior to
study entry

- Anticipated need to receive vaccination (e.g., influenza, pneumococcal polysaccharide)
within 1 week prior to Week 4, 12, 24, or 36 study visits

- Excess extracompartmental fluids including ascites, pericardial fluid, and pleural
effusions which, in the opinion of the study investigators, would result in difficulty
in monitoring the dose of MTX

- Use of drugs that alter folic acid metabolism such as trimethoprim/sulfamethoxazole or
reduce tubular excretion such as probenecid within 14 days prior to study entry

- New York Heart Association Class IV congestive heart failure

- Diabetes mellitus with HbA1C greater than 8.0% within the past 90 days prior to study
entry
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