Clinical Trials


Study Comparing Two Alternatives of Antiretroviral Therapy as Post-exposure Prophylaxis to HIV-1:FOVIR+EMTRICITABINA + LOPINAVIR/RITONAVIR VS TENOFOVIR+EMTRICITABINA + MARAVIROC (MARAVI-PEP)

This study has been completed
Hospital Clinic of Barcelona

Information provided by (Responsible Party)
Felipe Garcia, Hospital Clinic of Barcelona Identifier

First received: February 8, 2012
Last updated: March 31, 2015
Last Verified: March 2015
History of Changes


As a measure of secondary prophylaxis, and with the final objective of avoiding the infection, it has been suggested to use antiretroviral therapy. This is known as post-exposure prophylaxis (PEP).

Although there are different recommendations, almost every guideline recommend using 3 drugs as PEP both in USA and Europe.

Toxicity is one of the main limitations of PEP. Side effects during PEP are very usual, are attributed mainly to PI and are the main reasons for poor adherence or lost of follow-up.

A current standard regimen is AZT+3TC (Combivir®) or tenofovir+emtricitabine (Truvada®) plus the PI lopinavir/r. Toxicity associated with this regimens are high (31-85% of cases), with a 10-35% interruption of PEP Maraviroc, a CCR5 receptor antagonist, very well tolerated, coul be an adequate drug for PEP.

Condition Intervention Phase
HIV Infection

Drug : Tenofovir, emtricitabine, maraviroc
Drug : Tenofovir, emtricitabine, lopinavir/r
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Open Randomized Study Comparing Two Alternatives of Antiretroviral Therapy as Post-exposure Prophylaxis to HIV-1: TENOFOVIR+EMTRICITABINA + LOPINAVIR/RITONAVIR VS TENOFOVIR+EMTRICITABINA + MARAVIROC

Further study details as provided by Felipe Garcia, Hospital Clinic of Barcelona:

Primary Outcome Measures

  • Proportion of patients reaching 28 days of postexposure prophylaxis. [ Time Frame: 28 days ]
    Postexposure prophylaxis has to be used during 28 days to have effectiveness. It is thought that a shorter period of treatment does not prevent HIV infection according to animal models. Therefore, we will assess the proportion of patients who complete the total period of treatment in each arm of the study. The hypothesis is that a higher proportion of patients who take the medication with lower side effects will complete the 28 days of postexposure prophylaxis

Enrollment: 240
Study Start Date: February 2012
Study Completion Date: June 2014
Primary Completion Date: June 2014 (Final data collection date for primary outcome measure)

Arms Assigned Interventions
Experimental: Tenofovir, emtricitabine, Maraviroc
New postexposure prophylaxis (it is a combination drug)
Drug: Tenofovir, emtricitabine, maraviroc

experimental drug

Active Comparator: Tenofovir, emtricitabine, lopinavir/r
Standard prophylaxis (it is a combination drug)
Drug: Tenofovir, emtricitabine, lopinavir/r

Lopinavir/r 400mg BID



Ages Eligible for Study: 18 Years and older  
Sexes Eligible for Study: All  
Accepts Healthy Volunteers: Yes  


Inclusion Criteria:

  • Both sexes
  • Older than 18 years old
  • A potentially sexual exposition to HIV
  • Accept to participate

Exclusion Criteria:
  • Pregnant women
  • The source case a person with HIV antiretroviral resistances
  • Persons with a treatment that is contraindicated with the drugs in the study

contacts and locations

Contacts and Locations

Choosing to participate in a study is an important personal decision.Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01533272


Hospital Clinic de Barcelona
Barcelona, Spain, 08036

Sponsors and Collaborators

Hospital Clinic of Barcelona


Principal Investigator: Felipe Garcia, PhD Consultant
More Information

More Information

Responsible Party: Felipe Garcia, PhD, Hospital Clinic of Barcelona Identifier: NCT01533272   History of Changes  
Other Study ID Numbers: MARAVI-PEP  
Study First Received: February 8, 2012  
Last Updated: March 31, 2015  

Keywords provided by Felipe Garcia, Hospital Clinic of Barcelona:

HIV infection
Postexposure prophylaxis

Additional relevant MeSH terms:
HIV Infections
Maraviroc processed this data on May 29, 2020
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