CLINICAL TRIALS PROFILE FOR CRIXIVAN
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505(b)(2) Clinical Trials for Crixivan
| Trial Type | Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|---|
| OTC | NCT00011635 ↗ | The Effect of Milk Thistle on the Pharmacokinetics of Indinavir | Completed | National Institutes of Health Clinical Center (CC) | Phase 1 | 2001-02-01 | Complementary and alternative medicines are widely used in the HIV-infected population. Recent data have shown serious drug interactions between certain complementary medicines and protease inhibitors. Silymarin (Milk thistle) is a commonly used dietary supplement in HIV-infected patients for treatment of hepatitis or as a hepato-protectant. Data are available suggesting that it may alter cytochrome P4503A4-mediated drug metabolism. To evaluate the effect of milk thistle on the protease inhibitor, indinavir (IDV), ten healthy subjects will receive IDV (Crixivan) alone and in combination with an over-the-counter silymarin preparation. IDV will initially be administered alone at a dose of 800 mg Q8H for four doses and serial samples will be collected for determination of IDV pharmacokinetics after the morning dose on day 2. Subjects will then initiate therapy will milk thistle using a standardized formulation and dose for three weeks after which subjects will then again take 4 doses of IDV and have serial samples collected for IDV plasma concentrations. There will then be a 11-day washout period with no drugs, after which IDV will again be given for 4 doses and samples will be collected evaluate the offset of the effects of milk thistle. To examine the effect of milk thistle on other CYP450 pathways, subjects will receive a single dose of caffeine and dextromethorphan and have urine collected before and after milk thistle, and after the washout period. Indinavir, caffeine, and dextromethorphan concentrations in plasma or urine will be determined using validated HPLC methods. Steady-state noncompartmental parameters of indinavir in the presence and absence of milk thistle will be determined. Pharmacokinetic parameters will be compared using ANOVA that will include factors for a period effect and a treatment effect. Statistical analyses will include calculation of the mean ratio of the AUC in the treatment phases compared to IDV alone and determination of 95% confidence intervals. This study will help define the drug interaction potential of complementary and alternative therapies in HIV-infected patients. |
| >Trial Type | >Trial ID | >Title | >Status | >Sponsor | >Phase | >Start Date | >Summary |
All Clinical Trials for Crixivan
| Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|
| NCT00001566 ↗ | A Pilot Study of Autologous T-Cell Transplantation With Vaccine Driven Expansion of Anti-Tumor Effectors After Cytoreductive Therapy in Metastatic Pediatric Sarcomas | Completed | National Cancer Institute (NCI) | Phase 2 | 1996-12-01 | This is a single arm study. The tumor specimen is analyzed for the presence of a fusion protein which corresponds to available peptides. Patients undergo T cell harvest 10 days after an initial priming peptide-pulsed antigen presenting cell (APC) vaccine is performed. Fresh APCs are utilized for initial priming vaccination. All subsequent vaccinations will use cryopreserved APCs. Minimum number of APCs administered per vaccination is 100,000/kg and maximum is 100,000,000/kg. Patients undergo cytoreductive therapy for the treatment of their particular malignancy. This therapy usually consists of multiagent chemotherapy in the context of a separate protocol. Following chemotherapy, infusion of harvested T cells followed by infusion of peptide-pulsed APC vaccinations occurs every 6 weeks for a total of 3 post-priming vaccinations. Influenza vaccine is administered by intramuscular injection concurrent to peptide-pulsed APC vaccines. Interleukin -2 (IL-2) is administered as a continuous intravenous (IV) infusion for 4 days/week for 3 successive weeks starting on the same day as T cell /peptide-pulsed infusions. |
| NCT00002155 ↗ | A Six-Month Safety and Antiviral Study in HIV-1 Seropositive, AZT-Experienced Patients With CD4 Counts Less Than or Equal to 50 Cells/mm3 to Evaluate MK-639 Alone Versus Zidovudine (AZT) and 3TC Versus the Combination of MK-639 With AZT/3TC | Completed | Merck Sharp & Dohme Corp. | N/A | 1969-12-31 | To compare effects on CD4 counts and serum viral RNA among HIV-seropositive, zidovudine (AZT)-experienced patients in three treatment arms: indinavir sulfate ( MK-639; Crixivan ) plus AZT plus lamivudine ( 3TC ) versus MK-639 alone versus AZT/3TC. |
| NCT00002168 ↗ | A Comparison of Two Anti-HIV Triple-Drug Combinations in HIV-Infected Patients | Completed | Bristol-Myers Squibb | N/A | 1969-12-31 | The purpose of this study is to compare the safety and effectiveness of two anti-HIV drug combinations when given to HIV-infected patients who have never been treated with anti-HIV drugs. One drug combination is stavudine (d4T) plus didanosine (ddI) plus Crixivan. The other combination is Retrovir (AZT) plus Epivir (3TC) plus Crixivan. |
| NCT00002235 ↗ | A Study on the Safety and Effectiveness of Twice-Daily Nelfinavir Plus Twice-Daily Indinavir Plus Efavirenz in HIV-Positive Patients Who Have Never Taken Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs) or Protease Inhibitors | Completed | Agouron Pharmaceuticals | Phase 2 | 1969-12-31 | Indinavir is usually taken three times a day. The purpose of this study is to see if it is safe and effective to take indinavir only twice a day plus nelfinavir (also taken twice a day) and efavirenz (taken once a day). |
| NCT00002235 ↗ | A Study on the Safety and Effectiveness of Twice-Daily Nelfinavir Plus Twice-Daily Indinavir Plus Efavirenz in HIV-Positive Patients Who Have Never Taken Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs) or Protease Inhibitors | Completed | Merck Sharp & Dohme Corp. | Phase 2 | 1969-12-31 | Indinavir is usually taken three times a day. The purpose of this study is to see if it is safe and effective to take indinavir only twice a day plus nelfinavir (also taken twice a day) and efavirenz (taken once a day). |
| NCT00002351 ↗ | A Study of L-735,524 in HIV-Positive Children and Adolescents | Completed | Merck Sharp & Dohme Corp. | Phase 1 | 1969-12-31 | To evaluate the safety, tolerability, and plasma concentration profiles of indinavir sulfate ( MK-639; Crixivan ) in HIV-seropositive older children and adolescents. To compare the plasma concentration profile after the initial dose with data from a historical group of adults. To obtain preliminary data on antiviral activity of MK-639. |
| >Trial ID | >Title | >Status | >Sponsor | >Phase | >Start Date | >Summary |
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