Evolution of Plasma Lipid Profile in Patients With HIV1 Who Change Atripla to Eviplera Compared to Continue With Atripla

Inclusion Criteria: * Patients aged 18 years or above * Patients infected with HIV-1 * Patients treated with Atripla at least the last 6 months. * Patients with virologic suppression (HIV RNA \<50 copies / ml) for at least the last 6 months. * Women of childbearing potential must use contraception double barrier. * Voluntary signature of informed consent Exclusion Criteria: * Any acute or chronic (besides chronic HIV-1) disease that could interfere with the analysis of lipidomic * Women pregnant or lactating * Abuse of alcohol or other drugs * Body Mass Index (BMI)\> 25 * Use of drugs that may affect lipid metabolism (lipid-lowering drugs, steroids ...) * Patients unable to understand the study protocol or any other condition that in the investigator's opinion could jeopardize compliance with the protocol * History or presence of allergy to any of the study drugs or their components