Clinical trial NCT00000940: Five-Drug Anti-HIV Treatment Followed by Treatment Interruption in Patients Who Have Recently Been Infected With HIV
Official title: A Phase II Trial to Evaluate the Safety and Efficacy of Induction Treatment With Lamivudine Plus Stavudine Plus Abacavir Plus Amprenavir/Ritonavir Followed by Supervised Treatment Interruption in Subjects With Acute HIV Infection or Recent Seroconversion
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: HIV Infections
Keywords: Drug Therapy, Combination
Stavudine
Amprenavir/Ritonavir
Protease Inhibitors
Lamivudine
VX 478
Reverse Transcriptase Inhibitors
Anti-HIV Agents
Viral Load
Abacavir Sulfate
Acute Infection
Treatment Interruption
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID)
Sponsor class: NIH
First posted: 2001-08-31
Enrollment: 121
Sex: ALL
Minimum age (years): 16
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This study will determine what effect taking a combination of five anti-HIV drugs during the early stage of HIV infection, then temporarily stopping them once or twice, may have on the amount of HIV virus in the blood (viral load). The study will also evaluate the safety and effectiveness of this anti-HIV drug combination.

Detailed description: Acute, primary HIV infection represents a potentially unique opportunity to eradicate the infection. Although plasma viral load rises rapidly, the dominant infecting virus is relatively uniform genetically, and infection may not be fully established in all tissue sites until some time after exposure. Current antiretroviral therapy is able to reduce plasma viral load to unmeasurable levels in established infection. However, there are many questions that remain about the treatment of primary HIV infection. While it is assumed that aggressive antiretroviral regimens are required, it is not known how long they must be continued. It is hoped that after an interval of aggressive therapy, the number of agents could be safely reduced. This study evaluates if viral suppression can be sustained after study therapy is withdrawn.

Participants in this study will receive lamivudine (3TC), stavudine (d4T), abacavir (ABC), amprenavir (APV), and ritonavir (RTV) for at least 52 weeks. During this induction phase, participants will be followed through regular study visits every 4 or 8 weeks. If the participant's viral load and CD4 counts are within study parameters at the end of 52 weeks, the participant will discontinue all antiretroviral medications simultaneously. Participants in the treatment interruption phase will be followed weekly initially, every 2 weeks for 8 weeks, and then every 4 or 8 weeks. Treatment may be restarted if necessary during this phase based on viral load and CD4 counts. If treatment is restarted, the participant will receive 3TC, d4T, APV, and RTV but not ABC. During this reinduction phase, participants will be followed every 4 or 8 weeks.

Depending on viral load and CD4 counts, participants may be eligible for a second treatment interruption phase following the reinduction phase. Participants will once again stop all antiretroviral medications simultaneously and will have the same monitoring as in the first treatment interruption phase. Following this second treatment interruption, participants will be restarted on 3TC, d4T, APV, and RTV and will be evaluated at Weeks 4, 8, 16, and 24, at which time participants go off study.

The length of study participation for individual participants will vary. The length of each phase will be highly dependent on the participant's laboratory parameters. In general, participants will be enrolled in the study for 3 to 4 years. Participants may also enroll in immunology, compartment, pharmacology, and medication compliance substudies.

Eligibility criteria: Inclusion Criteria:

* Acute HIV infection (recently infected with HIV or recent seroconversion)
* Karnofsky status of 80 or greater within 14 days prior to study entry
* Acceptable methods of contraception
* Able and willing to give written informed consent

Exclusion Criteria:

* Previously received anti-HIV drugs
* Hepatitis within 30 days prior to study entry
* Pancreatitis within 120 days prior to study entry
* Radiation or chemotherapy within 30 days prior to study entry
* Certain medications within 14 days prior to study entry
* Experimental or investigational therapy within 30 days prior to study entry
* Illness (non-HIV infection, cancer, etc.) at the time of study entry
* Pregnant or breastfeeding

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
city: Los Angeles
country: United States
facility: USC CRS
state: California
city: Los Angeles
country: United States
facility: UCLA CARE Center CRS
state: California
city: San Diego
country: United States
facility: Ucsd, Avrc Crs
state: California
city: San Francisco
country: United States
facility: Ucsf Aids Crs
state: California
city: Aurora
country: United States
facility: University of Colorado Hospital CRS
state: Colorado
city: Honolulu
country: United States
facility: Univ. of Hawaii at Manoa, Leahi Hosp.
state: Hawaii
city: Boston
country: United States
facility: Massachusetts General Hospital ACTG CRS
state: Massachusetts
city: Fall River
country: United States
facility: SSTAR, Family Healthcare Ctr.
state: Massachusetts
city: Saint Louis
country: United States
facility: Washington U CRS
state: Missouri
city: New York
country: United States
facility: Beth Israel Med. Ctr. ACTU
state: New York
city: New York
country: United States
facility: NY Univ. HIV/AIDS CRS
state: New York
city: New York
country: United States
facility: Columbia P&S CRS
state: New York
city: Rochester
country: United States
facility: AIDS Care CRS
state: New York
city: Rochester
country: United States
facility: McCree McCuller Wellness Ctr. at the Connection, Infectious Disease Unit
state: New York
city: Rochester
country: United States
facility: Univ. of Rochester ACTG CRS
state: New York
city: Chapel Hill
country: United States
facility: Unc Aids Crs
state: North Carolina
city: Philadelphia
country: United States
facility: Hosp. of the Univ. of Pennsylvania CRS
state: Pennsylvania
city: Providence
country: United States
facility: The Miriam Hosp. ACTG CRS
state: Rhode Island
Study officials:
affiliation: San Francisco Veterans Medical Center
name: Paul Volberding, MD
role: STUDY_CHAIR
affiliation: Infectious Disease Division, University of Colorado Health Sciences Center
name: Elizabeth Connick, MD
role: STUDY_CHAIR
References:
citation: Ait-Khaled M, Rakik A, Griffin P, Cutrell A, Fischl MA, Clumeck N, Greenberg SB, Rubio R, Peters BS, Pulido F, Gould J, Pearce G, Spreen W, Tisdale M, Lafon S; CNA3003 International Study Team. Mutations in HIV-1 reverse transcriptase during therapy with abacavir, lamivudine and zidovudine in HIV-1-infected adults with no prior antiretroviral therapy. Antivir Ther. 2002 Mar;7(1):43-51.
citation: Garcia F, Plana M, Mestre G, Arnedo M, Gil C, Miro JM, Cruceta A, Pumarola T, Gallart T, Gatell JM. Immunological and virological factors at baseline may predict response to structured therapy interruption in early stage chronic HIV-1 infection. AIDS. 2002 Sep 6;16(13):1761-5. doi: 10.1097/00002030-200209060-00008.
citation: Garcia F, Plana M, Ortiz GM, Bonhoeffer S, Soriano A, Vidal C, Cruceta A, Arnedo M, Gil C, Pantaleo G, Pumarola T, Gallart T, Nixon DF, Miro JM, Gatell JM. The virological and immunological consequences of structured treatment interruptions in chronic HIV-1 infection. AIDS. 2001 Jun 15;15(9):F29-40. doi: 10.1097/00002030-200106150-00002.
citation: Mira JA, Macias J, Nogales C, Fernandez-Rivera J, Garcia-Garcia JA, Ramos A, Pineda JA. Transient rebounds of low-level viraemia among HIV-infected patients under HAART are not associated with virological or immunological failure. Antivir Ther. 2002 Dec;7(4):251-6. doi: 10.1177/135965350200700404.
citation: Tilling R, Kinloch S, Goh LE, Cooper D, Perrin L, Lampe F, Zaunders J, Hoen B, Tsoukas C, Andersson J, Janossy G; Quest Study Group. Parallel decline of CD8+/CD38++ T cells and viraemia in response to quadruple highly active antiretroviral therapy in primary HIV infection. AIDS. 2002 Mar 8;16(4):589-96. doi: 10.1097/00002030-200203080-00010.
citation: Volberding P, Demeter L, Bosch RJ, Aga E, Pettinelli C, Hirsch M, Vogler M, Martinez A, Little S, Connick E; ACTG 371 Team. Antiretroviral therapy in acute and recent HIV infection: a prospective multicenter stratified trial of intentionally interrupted treatment. AIDS. 2009 Sep 24;23(15):1987-95. doi: 10.1097/QAD.0b013e32832eb285.
citation: Connick E, Bosch RJ, Aga E, Schlichtemeier R, Demeter LM, Volberding P; ACTG 709 Team. Augmented HIV-specific interferon-gamma responses, but impaired lymphoproliferation during interruption of antiretroviral treatment initiated in primary HIV infection. J Acquir Immune Defic Syndr. 2011 Sep 1;58(1):1-8. doi: 10.1097/QAI.0b013e318224d0c7.