Advertisement

Topics

A Randomized, Double Blind, Comparative Study of Dideoxycytidine (ddC) Alone or ddC/AZT Combination Versus Zidovudine (ZDV) Alone in Patients With HIV Infection Who Have Received Prior ZDV Therapy

2014-08-27 04:00:02 | BioPortfolio

Summary

To evaluate the safety of zalcitabine (dideoxycytidine; ddC) alone and in combination with zidovudine (AZT) versus AZT alone when administered to asymptomatic patients with a CD4 count = or < 200 cells/mm3 and symptomatic patients with a CD4 count = or < 300 cells/mm3. To compare the effectiveness of ddC alone and in combination with AZT versus AZT alone.

ddC has been shown to demonstrate an antiviral effect. AZT has been shown to significantly decrease mortality and reduce the frequency of opportunistic infections in patients with AIDS or advanced ARC. After 1 year of AZT therapy, the effectiveness tends to diminish and patients progress with more opportunistic infections and higher mortality rates. Because of the demonstrated antiviral activity, absence of hematologic toxicity, and lack of cross tolerance in laboratory studies of ddC, a study to investigate the long-term effectiveness of ddC in patients with HIV infection who have received AZT therapy is warranted.

Description

ddC has been shown to demonstrate an antiviral effect. AZT has been shown to significantly decrease mortality and reduce the frequency of opportunistic infections in patients with AIDS or advanced ARC. After 1 year of AZT therapy, the effectiveness tends to diminish and patients progress with more opportunistic infections and higher mortality rates. Because of the demonstrated antiviral activity, absence of hematologic toxicity, and lack of cross tolerance in laboratory studies of ddC, a study to investigate the long-term effectiveness of ddC in patients with HIV infection who have received AZT therapy is warranted.

Patients are randomly assigned to 1 of 3 treatment groups. In study arm 1, patients receive AZT plus ddC placebo. In study arm 2, patients receive ddC plus AZT placebo capsules. In study arm 3, patients receive ddC plus AZT. Patients are seen every other week for first 8 weeks and monthly thereafter. Patients are stratified by HIV disease status, length of time receiving AZT, and systemic or local Pneumocystis carinii pneumonia (PCP) prophylaxis. Patients who reach a clinical AIDS-defining endpoint are offered open-label combination therapy.

Study Design

Masking: Double-Blind, Primary Purpose: Treatment

Conditions

HIV Infections

Intervention

Zidovudine, Zalcitabine

Location

UCSD Med Ctr / Pediatrics / Clinical Sciences
La Jolla
California
United States
920930672

Status

Completed

Source

National Institute of Allergy and Infectious Diseases (NIAID)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T04:00:02-0400

Clinical Trials [481 Associated Clinical Trials listed on BioPortfolio]

A Study of Saquinavir and Zalcitabine, Used Alone and Together, in the Treatment of Advanced HIV Infection in Patients Who Stopped Taking or Who Cannot Take Zidovudine

To compare the safety, tolerance, and efficacy of saquinavir mesylate (Ro 31-8959) alone, zalcitabine (dideoxycytidine; ddC) alone, and both in combination, in patients discontinuing or un...

A Randomized, Open-Label Study of Alternative Treatment Combinations of Dideoxycytidine (HIVID; ddC) and Zidovudine (AZT) in Patients With HIV Infection

To investigate the appropriate zalcitabine ( dideoxycytidine; ddC ) dose and zidovudine ( AZT ) schedule for use in combination therapy in patients with HIV infection.

Comparison of Ro 31-8959 Plus Zidovudine (AZT) Versus AZT Plus Zalcitabine (ddC) Versus Ro 31-8959 Plus AZT Plus ddC

PRIMARY: To determine the efficacy and toxicity of three treatment regimens: saquinavir mesylate (Ro 31-8959) plus zidovudine (AZT) vs. AZT plus zalcitabine (dideoxycytidine; ddC) vs. Ro 3...

A Study of Zidovudine (AZT) Used Alone or in Combination With Other Anti-HIV Drugs in HIV-Infected Patients With Little or No Previous Treatment

To compare, in zidovudine (AZT)-naive patients, the safety, tolerance, and efficacy of saquinavir mesylate (Ro 31-8959) alone versus AZT alone versus AZT in combination with Ro 31-8959, za...

Dideoxycytidine ( Ro 24-2027 ). A Treatment Protocol for the Use of Dideoxycytidine ( ddC ) in Patients With AIDS or Advanced ARC Who Cannot Be Maintained on Zidovudine ( AZT ) Therapy.

To provide zalcitabine ( ddC ) for patients with AIDS or Advanced ARC in whom zidovudine ( AZT ) is contraindicated, or who have failed treatment with or are intolerant to AZT and to demon...

PubMed Articles [3358 Associated PubMed Articles listed on BioPortfolio]

Could antiretrovirals be treating EBV in MS? A case report.

We present the case of an HIV-negative patient clinically diagnosed with relapsing-remitting MS who achieved significant disease improvement on Combivir (zidovudine/lamivudine). Within months of treat...

Removal of antiretroviral drugs stavudine and zidovudine in water under UV254 and UV254/H2O2 processes: Quantum yields, kinetics and ecotoxicology assessment.

The concentration of antiretroviral drugs in wastewater treatment plants (WWTP) effluents and surface waters of many countries has increased significantly due to their widespread use for HIV treatment...

Recent updates for designing CCR5 antagonists as anti-retroviral agents.

The healthcare system faces various challenges in human immunodeficiency virus (HIV) therapy due to resistance to Anti-Retroviral Therapy (ART) as a consequence of the evolutionary process. Despite th...

Inhibitory Effect of Sauchinone on UDP-Glucuronosyltransferase (UGT) 2B7 Activity.

Herb-drug interaction (HDI) limits clinical application of herbs and drugs, and inhibition of herbs towards uridine diphosphate (UDP)-glucuronosyltransferases (UGTs) has gained attention as one of the...

Tick-borne infections and co-infections in patients with non-specific symptoms in Poland: Tick-borne infections and co-infections.

The aim of the study was the evaluation of the frequency of infections and co-infections among patients hospitalized because of non-specific symptoms after a tick bite.

Medical and Biotech [MESH] Definitions

Inflammation of brain parenchymal tissue as a result of viral infection. Encephalitis may occur as primary or secondary manifestation of TOGAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; BUNYAVIRIDAE INFECTIONS; PICORNAVIRIDAE INFECTIONS; PARAMYXOVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RETROVIRIDAE INFECTIONS; and ARENAVIRIDAE INFECTIONS.

Viral infections of the leptomeninges and subarachnoid space. TOGAVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; RUBELLA; BUNYAVIRIDAE INFECTIONS; ORBIVIRUS infections; PICORNAVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RHABDOVIRIDAE INFECTIONS; ARENAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; JC VIRUS infections; and RETROVIRIDAE INFECTIONS may cause this form of meningitis. Clinical manifestations include fever, headache, neck pain, vomiting, PHOTOPHOBIA, and signs of meningeal irritation. (From Joynt, Clinical Neurology, 1996, Ch26, pp1-3)

Infections with viruses of the family PARAMYXOVIRIDAE. This includes MORBILLIVIRUS INFECTIONS; RESPIROVIRUS INFECTIONS; PNEUMOVIRUS INFECTIONS; HENIPAVIRUS INFECTIONS; AVULAVIRUS INFECTIONS; and RUBULAVIRUS INFECTIONS.

Pathogenic infections of the brain, spinal cord, and meninges. DNA VIRUS INFECTIONS; RNA VIRUS INFECTIONS; BACTERIAL INFECTIONS; MYCOPLASMA INFECTIONS; SPIROCHAETALES INFECTIONS; fungal infections; PROTOZOAN INFECTIONS; HELMINTHIASIS; and PRION DISEASES may involve the central nervous system as a primary or secondary process.

A reverse transcriptase inhibitor and ZALCITABINE analog in which a sulfur atom replaces the 3' carbon of the pentose ring. It is used to treat HIV disease.

More From BioPortfolio on "A Randomized, Double Blind, Comparative Study of Dideoxycytidine (ddC) Alone or ddC/AZT Combination Versus Zidovudine (ZDV) Alone in Patients With HIV Infection Who Have Received Prior ZDV Therapy"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

AIDS and HIV
AIDS; Acquired Immune Deficiency Syndrome. HIV; Human Immunodeficiency Virus HIV infection causes AIDS. HIV infection also causes the production of anti-HIV antibodies, which forms the test for HIV in patients. People who have the HIV antibodies are ...

Infectious-diseases
Antiretroviral Therapy Clostridium Difficile Ebola HIV & AIDS Infectious Diseases Influenza Malaria Measles Sepsis Swine Flu Tropical Medicine Tuberculosis Infectious diseases are caused by pathogenic...


Searches Linking to this Trial