Bone and Body Comp: A Sub Study of the SECOND-LINE Study

Summary

The use of anti HIV drugs (ART), and in particular a class of drugs known as nucleoside reverse transcriptase inhibitors (N(t)RTI), has been associated with changes in body fat and in particular loss of peripheral fat in the limbs. Low bone mineral density and osteoporosis are also common in HIV-infected patients. There appears to be some association between ART and bone loss, but this is poorly understood and requires further research. The SECOND-LINE study provides an opportunity to examine if a new anti-HIV drug (raltegravir) can result in greater increase in limb fat than a drug regimen containing N(t)RTI, which is currently standard of care. This study also provides an opportunity to examine if additional bone loss occurs with the second regimen of anti-HIV drugs and whether non-N(t)RTI regimens of ART used in second line therapy result in more or less bone loss than use of other classes of anti-HIV drugs such as protease inhibitors or N(t)RTI combinations. It is hypothesized that subjects randomised into Raltegravir arm will demonstrate greater increases in limb fat and smaller reductions in bone density at the proximal femur over 48 weeks than those randomised into the control arm (LPV/r + 2-3N(t)RTIs).

Timeline

Start

2010-02

Primary completion

2012-09

Completion

2013-08

Publications

• Results Martin A, Moore C, Mallon PW, Hoy J, Emery S, Belloso W, Phanuphak P, Ferret S, Cooper DA, Boyd MA; Second Line study team. Bone mineral density in HIV participants randomized to raltegravir and lopinavir/ritonavir compared with standard second line therapy. AIDS. 2013 Sep 24;27(15):2403-11. doi: 10.1097/01.aids.0000432534.47217.b4.
• Results Martin A, Moore CL, Mallon PW, Hoy JF, Emery S, Belloso WH, Phanuphak P, Ferret S, Cooper DA, Boyd MA; Second-Line Study Team. HIV lipodystrophy in participants randomised to lopinavir/ritonavir (LPV/r) +2-3 nucleoside/nucleotide reverse transcriptase inhibitors (N(t)RTI) or LPV/r + raltegravir as second-line antiretroviral therapy. PLoS One. 2013 Oct 30;8(10):e77138. doi: 10.1371/journal.pone.0077138. eCollection 2013.
• Boyd MA, Amin J, Mallon PW, Kumarasamy N, Lombaard J, Wood R, Chetchotisakd P, Phanuphak P, Mohapi L, Azwa I, Belloso WH, Molina JM, Hoy J, Moore CL, Emery S, Cooper DA; SECOND-LINE Study Group. Body composition and metabolic outcomes after 96 weeks of treatment with ritonavir-boosted lopinavir plus either nucleoside or nucleotide reverse transcriptase inhibitors or raltegravir in patients with HIV with virological failure of a standard first-line antiretroviral therapy regimen: a substudy of the randomised, open-label, non-inferiority SECOND-LINE study. Lancet HIV. 2017 Jan;4(1):e13-e20. doi: 10.1016/S2352-3018(16)30189-8. Epub 2016 Nov 1.

Drugs

Indications