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CLINICAL TRIALS PROFILE FOR DELAVIRDINE MESYLATE

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All Clinical Trials for Delavirdine Mesylate

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Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00000803	A Phase II Double-Blind Study of Delavirdine Mesylate ( U-90152 ) in Combination With Zidovudine ( AZT ) and/or Didanosine ( ddI ) Versus AZT and ddI Combination Therapy	Completed	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 2	1969-12-31	To determine the safety and anti-HIV activity of delavirdine mesylate ( U-90152 ) in combination with zidovudine ( AZT ) and/or didanosine ( ddI ) versus AZT/ddI combination. U-90152 has demonstrated anti-HIV activity. Since the combination of this drug with either AZT or ddI has synergistic inhibitory activity against HIV-1 in vitro, and triple therapy appears to have greater inhibitory activity against HIV-1 in vitro than dual therapy, the use of U-90152 in combination with AZT and/or ddI may improve the benefits of these drugs in persons with HIV disease.
NCT00000810	Randomized, Phase I/II, Dose-Ranging, Open-Label Trial of the Anti-HIV Activity of Delavirdine Mesylate (DLV; U-90,152S)	Completed	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 1	1969-12-31	PRIMARY: To study the safety and tolerance of delavirdine mesylate ( U-90152 ) monotherapy. To compare the anti-HIV activity of three blood concentration levels of this agent with nucleoside analog monotherapy, either zidovudine ( AZT ) or didanosine ( ddI ), based on the reduction of HIV viral burden. SECONDARY: To use pharmacokinetic parameters to assess the relationship between daily drug exposure and antiviral activity and toxicity of the U-90152, AZT, and ddI monotherapy. To assess anti-HIV activity using other disease markers. Data suggest that bisheteroarylpiperazines (BHAPs) such as delavirdine mesylate are potent and safe anti-HIV agents and may have different biological behavior than other currently available non-nucleoside RT inhibitors.
NCT00000882	Virologic and Immunologic Activity of Continued Lamivudine (3TC) vs Delavirdine (DLV) in Combination With Indinavir (IDV) and Zidovudine (ZDV) or Stavudine (d4T) in 3TC-Experienced Subjects	Completed	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 2	1969-12-31	To compare the proportion of patients in the 2 zidovudine (ZDV)-containing arms who have a plasma HIV RNA concentration below the limit of detection (defined as 500 copies/ml or less) at Weeks 20 and 24 [AS PER AMENDMENT 8/24/98: HIV RNA concentration below the limit of detection is now defined as 200 copies/ml or less]. To compare the safety and tolerability of the different treatment regimens. To compare the decrease in plasma HIV-1 RNA and the change in CD4 count from baseline to the average of Weeks 20 and 24 [AS PER AMENDMENT 12/19/97: and to the average of Weeks 44 and 48; AS PER AMENDMENT 8/24/98: and the average of Weeks 88 and 96] in the 2 ZDV-containing arms. To study the emergence of resistance to ZDV, lamivudine (3TC), stavudine (d4T), delavirdine (DLV), and indinavir (IDV) in treated patients. To correlate the antiviral and immunologic activity and emergence of drug resistance with pharmacologic parameters of study drugs. To delineate the pharmacokinetic interactions of IDV and DLV. [AS PER AMENDMENT 12/19/97: To delineate the possible development of cellular resistance to nucleoside analogs and the consequences of switching nucleoside study drugs on intracellular phosphorylation.] To document rates and patterns of adherence over the course of the study, from day of randomization through 48 weeks. [AS PER AMENDMENT 8/24/98: To define long-term durability of the virologic activity of the different treatment regimens, as defined by the proportion of patients with plasma HIV-1 RNA levels that remains below the limit of detection. To define long-term tolerability of the different treatment regimens.] Although a change in reverse transcriptase (RT) inhibitors is recommended when adding or changing protease inhibitors in a treatment regimen, the choice of available RT inhibitors is often limited by prior exposure, toxicity, or pharmacologic interaction with the protease inhibitors. This study addresses the question of whether to continue 3TC or substitute the nonnucleoside reverse transcriptase inhibitor (NNRTI) DLV when adding IDV to therapy for patients previously treated with ddI or d4T plus 3TC who have greater than 500 copies/ml of plasma HIV-1 RNA. Although the activity of DLV as monotherapy or in combination with nucleoside reverse transcriptase inhibitors is of limited duration due to rapid emergence of resistance, it is possible that DLV will contribute significantly to the activity of 3-drug regimens that include a new RT inhibitor plus a protease inhibitor.
NCT00000891	Immunologic and Virologic Consequences of Long-Term Highly Active Antiretroviral Therapy (HAART) in Subjects With Moderately Advanced HIV-1 Disease: A Follow-Up Study to ACTG 315	Completed	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 2	1969-12-31	To evaluate the relationship between viral suppression and changes in immune function, as measured by the restoration of delayed-type hypersensitivity (DTH) and lymphoproliferative (LP) responses, observed after 48 weeks of treatment with highly active antiretroviral therapy (HAART) in ACTG 315. To evaluate the durability of the antiviral and immunologic effects of long-term treatment with HAART. Given the extensive immunologic and virologic data available from ACTG 315, follow-up studies of this advanced-disease population are indicated to primarily ascertain the impact of long-term suppression of viral replication on immunologic reconstitution or re-education and the durability of the antiviral effects of HAART.
NCT00000892	A Study of Several Anti-HIV Drug Combinations in HIV-Infected Patients Who Have Used Indinavir	Completed	National Institute of Allergy and Infectious Diseases (NIAID)	N/A	1969-12-31	To compare the proportion of patients whose plasma HIV-1 RNA is below 500 copies/ml after 16 weeks of treatment. To assess the safety, toxicity, and tolerance of each treatment arm. While indinavir is currently the most commonly prescribed protease inhibitor, the optimal therapy for a person on an indinavir-containing regimen who experiences a rebound in viral load or never experiences a decrease in viral load below 500 copies per milliliter is unknown. Current clinical practice for such patients typically involves empiric use of a combination of other protease inhibitors (saquinavir/nelfinavir or saquinavir/ritonavir) and at least 1 other antiretroviral agent to which the patient has had little or no prior exposure. This may involve the use of 1 or more reverse transcriptase inhibitors (RTIs) or nonnucleoside reverse transcriptase inhibitors (NNRTIs). This study attempts to formally evaluate some of these options in indinavir-experienced patients.
NCT00001094	A Comparison of Nelfinavir Plus Saquinavir Plus Delavirdine or 3TC/ZDV Versus Nelfinavir Plus 3TC/ZDV in HIV-Infected Patients	Withdrawn	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 2	1969-12-31	To compare the long-term virologic response to combination therapy with two protease inhibitors, i.e., nelfinavir (NFV) + saquinavir soft gel capsule (SQVsgc) and delavirdine (DLV) or combination lamivudine/zidovudine (3TC/ZDV, Combivir) versus NFV and 3TC/ZDV, in the proportion of patients demonstrating virologic success (< 500 copies/ml HIV RNA) at week 48, without prior virologic or clinical failure. To evaluate the safety and tolerance of combination protease inhibitors. To evaluate the durability of virologic response as assessed by the Roche Ultra Sensitive assay (< 200 copies/ml) and culturable virus. To compare time to a confirmed virologic response (two consecutive plasma HIV RNA levels < 500 copies/ml) or to a confirmed treatment relapse following a confirmed virologic response across the treatment arms. To evaluate biologic phenotype (non-syncytium inducing versus syncytium inducing capacity) and the evolution and patterns of viral resistance among patients with confirmed treatment failures at or after weeks 16 to 24. To compare immunologic benefits, as measured by longitudinal CD4/CD8 cell count profiles. To evaluate the influence of baseline virologic and immunologic parameters on the magnitude and duration of plasma HIV RNA response. To compare virologic response between the two dose schedules of NFV and SQVsgc (bid vs tid) and between NFV and SQVsgc with either DLV or combination 3TC/ZDV. To evaluate compliance and exploratory population pharmacometrics. Past studies have shown that combination therapies not only will result in better clinical outcomes but may prolong the effects of therapy. The enhanced effects seen with combination therapies are likely related to a greater suppression of HIV replication and alterations in resistance patterns. Both in vitro and in vivo studies suggest that triple-drug therapy may have an advantage over one- and two-drug regimens. Therefore, triple-drug therapy appears to be an important strategy in the treatment of HIV infection.
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