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A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection Clinical Trials Facts presented on Clinical Trials Search isn't designed to be a substitute for proven healthcare advice, calls or treatment using a real mD. We aren't mDs. Always confer with your physician on A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection conditions. Clinical Trials Search.org is a website dedicated to listing clinical research studies in human subjects. A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection Clinical research trials and A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection healthcare trials happen in a lot of of localities across the United States of America. A clinical trial or clinical study is a research project with human volunteer subjects. Clinical drug trials and pharmaceutical clinical trials generally measure the potency of new drugs. The aim of the studies / undertakings is to answer particular human medical questions. Clinical trials are a popular manner for doctors, government agencies, and private sector corporations to discover remedies for all kinds of circumstances, such as A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection. A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection Clinical Trials and other clinical trials allow volunteers to get healthcare treatment alternatives before they are available to the general public. Most times the participants receive treatment for without cost, and occasionally they are paid for their time. Sometimes there is a cost for a A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection clinical trial. Human subjects often receive the most effective healthcare possible for their A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection condition. Risks are a reality, nonetheless, and may include more or frequent dr. calls, healthcare hazards (perhaps life-threatening), and/or the treatment being ineffective. Trials are federally governed with rigorous guidelines to protect clinical trials subjects.
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Home > "A" Clinical Trials Conditions > A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection  A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection
A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection
For Condition: Acquired Immunodeficiency Syndrome,HIV Infections
Status: Completed
Sponsor(s): National Cancer Institute (NCI) ,
Synopsis: This is a phase I/II study to determine the safety and tolerance of the protease inhibitor indinavir (MK-0639), alone and then in combination with HIV reverse transcriptase inhibitor therapy in children with HIV infection. Indinavir sulfate (the capsule formulation) has been shown to have potent antiviral activity and an acceptable safety profile in adults. HIV-infected children who have not received prior antiretroviral therapy, and children who have become refractory to prior therapy, or who have experienced toxicity to prior therapy, will be included. In addition, we will explore viral and CD4 cell kinetics before starting therapy and following exposure to antiretroviral agents. The study will be conducted in three parts. a) In order to help interpret the antiviral activity of indinavir, the virologic and immunologic profile of children will be studied within 2 weeks prior to starting the therapeutic part. For children who have never been treated, this will be before the initiation of any antiretroviral therapy and for children who have already received antiretroviral therapy, this will be done during the initial "wash-out" phase that is routinely interposed between two different treatment regimens. b) The initial 16 weeks of therapy will then evaluate the toxicities, pharmacokinetics, and preliminary efficacy of single drug therapy with indinavir. c) Subsequently, all children who are able to tolerate the combination of zidovudine and lamivudine (i.e., have no prior history of intolerance to one of these two agents) will be treated with these two reverse transcriptase inhibitors in addition to the protease inhibitor indinavir. Zidovudine and lamivudine will be added after 16 weeks at a fixed dosage. Toxicity, pharmacokinetics, and preliminary efficacy of indinavir will also be investigated after combination therapy. All patients who wish to remain in this study after 96 weeks of therapy and who do not meet off study criteria will be permitted to receive extended treatment with their current indinavir combination therapy for an additional 48 weeks. The study will determine the pharmacokinetic profile of indinavir, given as single drug or in combination with zidovudine and lamivudine. It will assess the preliminary antiviral and clinical activity by monitoring clinical status, viral burden in plasma, and markers of immunologic status. Based on safety and preliminary efficacy results from studies performed in adults, we will study three dose levels which are expected to result in drug levels above the IC95 of HIV-1 for all or most of the dosing interval.
Details: This is a phase I/II study to determine the safety and tolerance of the protease inhibitor indinavir (MK-0639), alone and then in combination with HIV reverse transcriptase inhibitor therapy in children with HIV infection. Indinavir sulfate (the capsule formulation) has been shown to have potent antiviral activity and an acceptable safety profile in adults. HIV-infected children who have not received prior antiretroviral therapy, and children who have become refractory to prior therapy, or who have experienced toxicity to prior therapy, will be included. In addition, we will explore viral and CD4 cell kinetics before starting therapy and following exposure to antiretroviral agents. The study will be conducted in three parts. a) In order to help interpret the antiviral activity of indinavir, the virologic and immunologic profile of children will be studied within 2 weeks prior to starting the therapeutic part. For children who have never been treated, this will be before the initiation of any antiretroviral therapy and for children who have already received antiretroviral therapy, this will be done during the initial "wash-out" phase that is routinely interposed between two different treatment regimens. b) The initial 16 weeks of therapy will then evaluate the toxicities, pharmacokinetics, and preliminary efficacy of single drug therapy with indinavir. c) Subsequently, all children who are able to tolerate the combination of zidovudine and lamivudine (i.e., have no prior history of intolerance to one of these two agents) will be treated with these two reverse transcriptase inhibitors in addition to the protease inhibitor indinavir. Zidovudine and lamivudine will be added after 16 weeks at a fixed dosage. Toxicity, pharmacokinetics, and preliminary efficacy of indinavir will also be investigated after combination therapy. All patients who wish to remain in this study after 96 weeks of therapy and who do not meet off study criteria will be permitted to receive extended treatment with their current indinavir combination therapy for an additional 48 weeks. The study will determine the pharmacokinetic profile of indinavir, given as single drug or in combination with zidovudine and lamivudine. It will assess the preliminary antiviral and clinical activity by monitoring clinical status, viral burden in plasma, and markers of immunologic status. Based on safety and preliminary efficacy results from studies performed in adults, we will study three dose levels which are expected to result in drug levels above the IC95 of HIV-1 for all or most of the dosing interval.
Eligibility:
Study Type: Interventional, Treatment, Safety
Minimum Age/Maximum Age: /
Genders: Both
Protocol Entry Criteria: Age - six months to 18 years. PREVIOUSLY UNTREATED OR MINIMALLY TREATED PATIENTS: Asymptomatic HIV-infected children with an age-corrected absolute CD4 count that renders them at possible risk for an AIDS-related opportunistic infection, or; Children with moderate to severe symptomatic HIV infection as defined by the CDC classification. Absence of active opportunistic infection requiring acute intervention at the time of entry. Prophylaxis for PCP with trimethoprim/sulfamethoxazole or pentamidine at the time of entry will be allowed. Availability of a parent or legal guardian to give informed consent and who is deemed sufficiently reliable to return for the child's follow-up visits. PREVIOUSLY TREATED PATIENTS WITH REFRACTORY DISEASE OR INTOLERANCE TO PRIOR THERAPY: HIV-infected patients who have been previously treated with one or more dideoxynucleosides (zidovudine, didanosine, lamivudine, stavudine, zalcitabine) or another protease inhibitor (will be analysed separately) and have experienced either a withdrawal grade toxicity or refractory disease evidenced by progressive clinical immunological deterioration. Availability of a parent or legal guardian to give informed consent and who is deemed sufficiently reliable to return for the child's follow-up visits. ALL CHILDREN: Must not be critically ill or clinically unstable. Patients receiving treatment for an acute infection must have been on stable therapy for at least 7 days prior to entry on study. MUST NOT HAVE ONE OR MORE OF THE FOLLOWING LABORATORY FINDINGS (WITHIN 2 WEEKS OF ENTRY AND NOT YET RESOLVED): Total WBC count less than 1500 cells/mm(3). Neutrophil plus band count less than 750 cells/mm(3). Hemoglobin less than 8.0 g/dl (history of recent transfusion is not an exclusion). Platelet count less than 500,000/mm(3). Creatinine greater than 2 times the upper limit of normal. Liver transaminase greater than 3 times the upper limit of normal. Bilirubin greater than 1.5 mg/dL. Hematuria. Because of the possibility for an increased risk of kidney stone formation patients must not have severe recurrent or persistent diarrhea, or a family history of kidney stones. Patients must not have received, within 30 days prior to entry, therapy with immunomodulating agents (interleukin-2, interferons, growth hormone, IGF-1, or other biological response modifier), cytolytic chemotherapeutic agents, radiation therapy. Stable (e.g., for greater than 4 weeks prior to entry) corticosteroids therapy for the treatment of lymphocytic interstitial pneumonitis or an autoimmune process or stable therapy with G-CSF (Neupogen) at the same dosage for at least 4 weeks are acceptable. Must not have an active opportunistic infection requiring acute intervention. Women must not be pregnant or breast feeding.
Total Enrollment: 63
Location and Contact Information:
National Cancer Institute (NCI)
Bethesda, Maryland, 20892
United States
Additional Information:
Study ID Numbers: 950163; 95-C-0163
Study Start Date: July 13, 1995
Record last reviewed: March 1, 2000
Additional information available at: clinicaltrials.gov
Clinicaltrials.gov Reference link: NCT00001443
Other Acquired Immunodeficiency Syndrome Studies:
1. A Randomized Pilot Study for the Treatment of AIDS or AIDS Related Complex with an Alternating or Simultaneous Combination Regimen of AZT and 2',3'-Dideoxyinosine
2. AIDS-Associated Heart Disease -- Incidence and Etiology
3. Pediatric Pulmonary and Cardiovascular Complications of Vertically Transmitted HIV Infection (P2C2)
4. Subcutaneously Administered Interleukin-12 Therapy in HIV-Infected Patients with Disseminated Mycobacterium Avium Complex Infection
5. A Pilot Study of Adherence to Oral Medication and Health Beliefs of Adolescents with HIV and their Mothers
Related Studies:
Other Acquired Immunodeficiency Syndrome Clinical Trials
Other Maryland Clinical Trials
Other Bethesda Clinical Trials
A Phase I /II Study of the Protease Inhibitor Indinavir (MK-0639) in Children with HIV Infection
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