A Study of the Safety and Effectiveness of Treating Advanced AIDS Patients Between Ages 4 and 22 With 7 Drugs, Some at Higher Than Usual Doses

2014-07-24 14:36:33 | BioPortfolio


The purpose of this study is to see if 7 drugs, some of them given at higher doses than normal, are safe and tolerated by young patients with AIDS who have failed to respond to other treatments. The study will also see what effect taking several anti-HIV drugs together at high doses has on the body's ability to fight HIV infection. The 7 drugs that will be given in this study are stavudine (d4T), didanosine (ddI), lamivudine (3TC), nelfinavir (NFV), ritonavir (RTV), saquinavir (SQV), and nevirapine (NVP).

(This study has been changed from an 8-drug regimen to a 7-drug regimen. Patients no longer receive the drug hydroxyurea [HU].) Doctors are seeing many HIV-positive children who did not get good long-term results from the current anti-HIV drugs. Some doctors believe anti-HIV drugs fail because drug levels in the body are too low. In this study, doctors will give patients 7 drugs, some at higher doses than normal. Since it is very important that patients on the study take all of these drugs, doctors will make it as easy as possible. Doctors want to try this because children with advanced AIDS have few treatment choices.


Clinicians are increasingly confronted with HIV-positive children who have failed all available antiretroviral therapies and have few viable treatment options. Virologic failure in these patients may be a result of antiretroviral resistance, likely a result of poor adherence to the treatment regimen or inadequate dosing. This study is designed to achieve adherence through observation of drug administration for the first 8 weeks of the study and to further overcome resistance by intensive, high-dose, multi-drug therapy. Treatment with more than 4 drugs has not been studied formally in children, but pediatricians caring for children with AIDS have used such strategies off study with success. Dose intensification may also aid in overcoming resistance; therefore, in this trial, d4T, 3TC, and NFV are administered at up to twice their standard doses. Given the limited therapeutic options available to HIV-positive children with poor prognoses, high-dose, multi-drug therapy merits study. [AS PER AMENDMENT 01/07/00: Pancreatitis, which may be fatal in some cases, has occurred during therapy with ddI. The risk of pancreatitis may be increased when ddI is used in combination with HU. ACTG A5025, a study that had a d4T/ddI/HU arm, was terminated because of significant toxicity concerns related to the HU-containing arm. Patients enrolled in ACTG P1007 may be at increased risk of developing pancreatitis given their advanced disease state and the use of multiple drugs including HU. The study had been amended to address these concerns.] [AS PER AMENDMENT 12/19/01: HU has been removed from the drug regimen.]

Patient enrollment is staged to allow study physicians to aggressively monitor patients for signs of toxicity. Initially, patients are admitted to a hospital or clinical research center for 2 weeks, where they initiate an [AS PER AMENDMENT 12/19/01: "8-drug regimen" is replaced by "7-drug regimen"] and undergo frequent physical exams and blood tests to assess [AS PER AMENDMENT 12/19/01: glucose levels], pharmacokinetics, virologic response, and toxicity. If investigators identify important drug interactions requiring modification of the combination regimen, or if there are early regimen-terminating toxicities, the trial will be halted to address these concerns. After 2 weeks, the patient is discharged to return home. Study personnel visit the patient's house twice a day for 6 more weeks to observe drug administration, and the patient continues to receive regular physical exams and blood tests. At the end of Week 24, all patients with plasma RNA levels of 10,000 copies/ml or less are offered the opportunity to continue their regimen to Week 48. Patients with plasma RNA levels above 10,000 copies/ml at Week 24 and patients who experience virologic rebound at or after Week 24 are taken off study unless the patient's family and the investigator feel it is in the best interest of the child to remain on study. [AS PER AMENDMENT 12/19/01: The 2-week hospital or GCRC stay is no longer required. A 2-day stay in a hospital or GCRC for the purpose of drug regimen training is recommended, but not mandatory. Study personnel visit the patient once a day for 6 weeks at an agreed upon location or by phone contact.

Study Design

Endpoint Classification: Safety Study, Primary Purpose: Treatment


HIV Infections


Ritonavir, Nelfinavir mesylate, Saquinavir, Nevirapine, Lamivudine, Stavudine, Didanosine


Univ of Alabama at Birmingham - Pediatric
United States


Active, not recruiting


National Institute of Allergy and Infectious Diseases (NIAID)

Results (where available)

View Results


Published on BioPortfolio: 2014-07-24T14:36:33-0400

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Medical and Biotech [MESH] Definitions

A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by a hydrogen. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. Didanosine is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA by binding to reverse transcriptase; ddI is then metabolized to dideoxyadenosine triphosphate, its putative active metabolite.

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