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DiabetesPhase 2/3DPPIVinHIVNCT01093651

Dipeptidyl Peptidase-4 Inhibition and Immune Function in HIV

A Phase 2/3 study testing Sitagliptin in people with Diabetes and Insulin Resistance, run by Washington University School of Medicine at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

We will test the safety of a new class of anti-diabetes compounds (DPPIV-inhibitors) in people living with HIV. Future trials will examine efficacy for treating diabetes and reducing cardiovascular disease risk in people living with HIV. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Diabetes, Insulin Resistance
What is being tested?
Sitagliptin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteUnited States
Study dates
Jun 2010to Jun 2012
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Thirty 18-65 yr old HIV-infected men and women (with source documentation of HIV status) who are stable on any antiretroviral therapy (cART) regimen
  • Have stable (at least the past 12-months) immunologic (>350 CD4+ T-cells/µL) and virologic (<50 copies HIV RNA/mL) status.
  • BMI 18-42kg/m2;
  • Normal blood chemistry for at least 1 month prior to enrollment;
  • Platelet count > 30,000/mm3, absolute neutrophil count >750/mm3, transaminases < 2.5x the upper limit of normal (ULN).
  • Long-term non-progressors (not on ART) are not eligible.

Who cannot join

  • CD4+ T-cell count <350 cells/µL or detectable plasma HIV RNA (>50 copies HIV RNA/mL) within the past 12-months. During the study, if CD4+ T-cell count declines by >100 cells/µL, or if plasma HIV RNA becomes detectable (>50 copies HIV RNA/mL after repeat analysis 2wks apart), and the participant denies any lapse in their anti-HIV medication regimen, the study medication will be stopped and an adverse event documented. If at any time during the study, two participants experience a reduction in T-cell count >100 cells/µL, or their plasma HIV RNA levels become detectable (>50 copies HIV RNA/mL after repeat analysis 2wks apart), and they are confirmed (by unblinding) to have received sitagliptin, the study will be stopped for serious safety concerns.
  • Systemic, secondary or opportunistic infection within past 12-months.
  • Fasting glucose intolerance (FBG >100mg/dL), fasting hyperinsulinemia (>15µU/mL), or fasting insulin resistance (Homeostasis model for insulin resistance (HOMA) >3.0). Any agents that might alter glucose metabolism (insulin, TZDs, metformin, glucocorticoids, sulfonylurea, corticosteroids, megace, rhGH, GH-secretagogue) during the 3 months prior to enrollment or at any time during enrollment. Volunteers with T2DM, IDDM or diabetic ketoacidosis will not be enrolled.
  • History of serious CV disease or NYHA Functional Class III or IV, (e.g., recent MI, unstable angina, edema, CHF, CAD, CABG, valve disease (murmur), stroke, uncontrolled high blood pressure (resting >160/95 mmHg), irregular heart rhythm, resting ST-segment depression >1mm). Treatment with medications for a CV condition (cardiac glycosides α- or ß-blockers). Some antihypertensive medications (calcium-channel blocker, diuretic, angiotensin II receptor blockers (ARB), angiotensin converting enzyme inhibitors (ACE)) will be permitted.
  • Moderate to severe renal insufficiency. Serum creatinine >1.7 mg/dL (men) >1.5 mg/dL (women).
  • Known allergy or hypersensitivity to DPPIV-inhibitors.
Show all 19Show fewer
  • Plan to change anti-HIV medication regimen or prophylaxis for opportunistic infection within 6-months of starting study.Transitions among efavirenz-based regimens will be allowed (e.g., Efavirenz + lamivudine + zidovudine (combivir) to Efavirenz + emtricitabine + tenofovir (Atripla)).
  • Lipid-lowering medications are permitted (fibrate or statin or niacin), but must be stable on that agent for at least 3 months prior to enrollment. Lipid-lowering agents cannot be started during the treatment period.
  • Chronic hepatitis B infection (HB surface antigen positive). Active hepatitis C infection (detectable Hep C RNA). Those who have cleared hepatitis B or C infection are eligible.
  • Hematocrit <34% in men or <25% in women with symptoms (fatigue, "tired-legs", shortness of breath). Hemoglobin <10 gm/100ml with symptoms.
  • Nausea, vomiting, diarrhea (>4 loose stools/day) that are unresponsive to treatment. History of eating disorder or significant GI-disease.
  • Pregnant or nursing mothers. Women must agree to use an acceptable form of birth control during the study. If birth control pills are used, the woman must be stable on these medications for at least 6 months prior to enrollment.
  • Active malignancy or treatment with chemotherapeutic agents or radiation therapy (within past 12 months).
  • >10% unintentional body weight loss during the 12 months prior to enrollment.
  • "Blinded" investigational drugs/medications during the 3 months prior to enrollment that will not be unblinded before enrollment. Open-label investigational drugs are permitted (within past 3 months, no plan to stop during enrollment and not known to affect glucose, lipid, adipose tissue or liver metabolism).
  • Over the counter agents that might alter glucose, lipid, or adipose tissue metabolism (e.g., creatine monohydrate, chromium picolinate, amino acid/protein supplements, medium- or long-chain fatty acids) within 1 month of enrollment. These supplements are not permitted during the treatment period.
  • Reduced cognitive function/unable to provide voluntary informed consent. Prisoners are excluded.
  • Active substance abuse that the physician-scientist believes may compromise safety, compliance, or interfere with study drug or data interpretation.
  • Any cytokine or anti-cytokine therapy during 3 months prior to enrollment.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Washington University School of Medicine

    St Louis, Missouri, 63110

Other trials in United States

About this study

Official title: A Blinded Randomized Controlled Pilot Immunologic and Virologic Safety Trial of an FDA-approved DPPIV-inhibitor in HIV+ Men and Women

We will test the safety of a new class of anti-diabetes compounds (DPPIV-inhibitors) in people living with HIV. Future trials will examine efficacy for treating diabetes and reducing cardiovascular disease risk in people living with HIV.

Read the detailed description

Human immunodeficiency virus (HIV)-infection and treatment with antiretroviral therapies are associated with several cardiometabolic risk factors; insulin resistance, diabetes, dyslipidemia, central adiposity, that increase risk for MI and stroke. A new class of drugs used to treat type 2 diabetes has been introduced; Dipeptidyl peptidase-IV (DPPIV)-inhibitors (Januvia®, Onglyza®, alogliptin). Dipeptidyl peptidase-IV (DPPIV)-inhibition could be a safe and effective therapy for HIV-associated insulin resistance and diabetes. However, no safety data exist. The research question is: If HIV+ adults with stable immunologic (CD4+ T-cell count >350 cells/μL) and virologic (plasma HIV RNA <50 copies/mL) function are given a DPPIV-inhibitor would their CD4+ T-cell count and plasma HIV RNA level increase, decrease, or stay the same? Theoretically, DPPIV-inhibition could enhance their immune system by increasing SDF-1α levels; a potent inhibitor of HIV-entry into T-cells, or harm the HIV+ immune system by inactivating CD26 on immune cells. We hypothesize that DPPIV-inhibition will not harm the immune system in HIV+ people. We propose a blinded randomized controlled pilot safety trial of an FDA-approved DPPIV-inhibitor in virologically- and immunologically-stable HIV+ men and women. We will monitor CD4+ T-cell count, plasma HIV RNA levels, immune activation markers, and safety outcomes (lipid/lipoprotein profiles, blood pressure, kidney and liver function) during 4-6 months of DPPIV-inhibitor exposure vs placebo in 20 HIV+ adults. If safety is confirmed, the efficacy of DPPIV-inhibition in HIV+ with insulin resistance will be tested in future trials that examine potential glucoregulatory and cardiovascular benefits.

Being tested
Sitagliptin, Placebo
Medical subject headings
Diabetes Mellitus, Insulin Resistance

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SitagliptinDrug

    100 mg sitagliptin daily for 4-6 months

  • PlaceboDrug

    Daily placebo for 4-6 months

Study groups in NCT01093651
Study groupRoleWhat they receive
DPPIV inhibitionExperimentalFour to six months of sitagliptin administration (100mg/d) to people living with HIV-1 who have well-controlled immunologic (CD4+ T-cell count >350 cells/µL) and virologic (plasma HIV RNA <50 copies/mL) status.
Receives: Drug: Sitagliptin
PlaceboPlacebo comparatorFour to six months of placebo to people living with HIV-1 who have well-controlled immunologic (CD4+ T-cell count >350 cells/µL) and virologic (plasma HIV RNA <50 copies/mL) status.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. CD4+ T-cell Count

    Measured: Monthly for 4 months

  2. Plasma HIV Viremia (Viral Load)

    Percentage of participants with plasma HIV RNA copy number less than 48 copies/mL

    Measured: Monthly for 6 months

Secondary outcomes (5)
  1. Soluble TNFR2; Serum Biomarkers of Immune Activation

    serum soluble tumor necrosis factor receptor-2 concentration

    Measured: Baseline, week 8, week 16

  2. SDF1α; Serum Biomarkers of Immune Activation

    serum stromal cell-derived factor-1α concentration

    Measured: Baseline, week 8, week 16

  3. RANTES; Serum Biomarkers of Immune Activation

    serum Regulated on Activation, Normal T cell Expressed and Secreted concentration

    Measured: Baseline, week 8, week 16

  4. Oral Glucose Tolerance

    Area under the 75-gr oral glucose tolerance curve (AUCg) based on plasma glucose values measured at 0, 30, 60, 90, and 120 mins post-glucose challenge.

    Measured: Baseline, week 8, week 16

  5. Self-reported Symptoms

    Cumulative number of self-reported symptoms based on the Division of AIDS Grading Scale for the Severity of Adult Adverse Events (0-4 scale where 0 is no new symptoms, 4 is serious adverse event or toxicity)

    Measured: Monthly for 4 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Mar 2010 (estimated)
  2. Study startJun 2010
  3. Primary completionJun 2011
  4. Study completionJun 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01093651
Sponsor's protocol ID
KEY03222010
Acronym
DPPIVinHIV
Status last verified
Jan 2014
First submitted
23 Mar 2010
Last updated
17 Feb 2014
Data monitoring committee
Yes

Publications

  • Goodwin SR, Reeds DN, Royal M, Struthers H, Laciny E, Yarasheski KE. Dipeptidyl peptidase IV inhibition does not adversely affect immune or virological status in HIV infected men and women: a pilot safety study. J Clin Endocrinol Metab. 2013 Feb;98(2):743-51. doi: 10.1210/jc.2012-3532. Epub 2012 Dec 21.

    PubMed 23264399

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Sitagliptin in people with Diabetes and Insulin Resistance, run by Washington University School of Medicine at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 Jan 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

CD4+ T-cell Count (time frame: Monthly for 4 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01093651, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Feb 2014.

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