Viracept (Nelfinavir Mesylate) - Summary

VIRACEPT SUMMARY

VIRACEPT^®
(nelfinavir mesylate)
TABLETS and ORAL POWDER

VIRACEPT® (nelfinavir mesylate) is an inhibitor of the human immunodeficiency virus (HIV) protease. VIRACEPT Tablets are available for oral administration as a light blue, capsule-shaped tablet with a clear film coating in 250 mg strength (as nelfinavir free base) and as a white oval tablet with a clear film coating in 625 mg strength (as nelfinavir free base).

VIRACEPT in combination with other antiretroviral agents is indicated for the treatment of HIV infection.

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NEWS HIGHLIGHTS

Published Studies Related to Viracept (Nelfinavir)

Pharmacokinetic study and comparative bioavailability of two nelfinavir tablet formulations in Iranian healthy volunteers after a low-dose administration. [2009.07]
The objective of this study is to evaluate pharmacokinetic parameters, bioavailability of a potent HIV protease inhibitor, nelfinavir mesylate (NFV), following a single oral administration of 2 tablet formulations. A randomized, 2-way, crossover, bioequivalence study was conducted in 24 healthy male volunteers to compare 2 brands of nelfinavir 250 mg tablets, Nelfabiovir (Bakhtar Bioshimi, Iran) as test and Viracept (Roche, Germany) as reference product...

Effects of standard and supratherapeutic doses of nelfinavir on cardiac repolarization: a thorough QT study. [2009.03]
This was a randomized, 4-way crossover, third-party-blinded study in 68 healthy subjects to assess the effect of nelfinavir on QTc interval...

Significant decrease in nelfinavir systemic exposure after omeprazole coadministration in healthy subjects. [2008.01]
STUDY OBJECTIVES: To assess the effect of omeprazole on the multiple-dose (steady-state) pharmacokinetics and safety of nelfinavir, and to evaluate the safety and tolerability of nelfinavir when administered alone and with omeprazole... CONCLUSION: The observed reduction in the systemic exposure to both nelfinavir and its active metabolite M8 after coadministration with omeprazole could result in loss of virologic control and potential emergence of drug resistance. Hence, omeprazole should not be coadministered to patients taking nelfinavir.

Long-term body fat outcomes in antiretroviral-naive participants randomized to nelfinavir or efavirenz or both plus dual nucleosides. Dual X-ray absorptiometry results from A5005s, a substudy of Adult Clinical Trials Group 384. [2007.08.15]
BACKGROUND: Long-term regional body fat outcomes have not been well described in randomized antiretroviral drug trials... CONCLUSIONS: Over 144 weeks, zidovudine-lamivudine was superior to didanosine-stavudine with regard to limb fat loss. The combination of zidovudine, lamivudine, and efavirenz showed no overall pattern suggesting limb fat loss over time and was significantly superior to the pooled zidovudine-lamivudine-nelfinavir (with and without efavirenz) arms.

A prospective, 96-week study of the impact of Trizivir, Combivir/nelfinavir, and lamivudine/stavudine/nelfinavir on lipids, metabolic parameters and efficacy in antiretroviral-naive patients: effect of sex and ethnicity. [2006.03]
OBJECTIVES: To compare the lipid and metabolic effects, efficacy, and safety of twice-daily regimens of Trizivir (abacavir 300 mg/lamivudine 150 mg/zidovudine 300 mg triple nucleoside tablet; TZV), Combivir (lamivudine 150 mg/zidovudine 300 mg combination tablet; COM)+nelfinavir (NFV), and stavudine (d4 T)+lamivudine (3TC)+NFV. STUDY DESIGN: An international, phase 4, open-label, parallel-group, 34-centre study was conducted in 254 non-diabetic, antiretroviral-naive, HIV-infected out-patients with an HIV-1 RNA level of >1000 HIV-1 RNA copies/mL and < or =200,000 copies/mL and a CD4 cell count of >50 cells/microL... CONCLUSIONS: Over 96 weeks, TZV twice daily has significantly less effect on LDL cholesterol than COM/NFV or d4T/3TC/NFV twice daily, especially in women and black patients, and is associated with similar virological and CD4 responses.

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Clinical Trials Related to Viracept (Nelfinavir)

Safety Of VIRACEPT; 625 mg Administered To HIV-Infected Women During Pregnancy [Completed]
This study is an evaluation of the safety of 625 mg formulation when administered to HIV-infected pregnant women from their second trimester through six weeks postpartum. The study will also evaluate the pharmacokinetics of VIRACEPT

A Study to Determine Effective Prophylaxis and Treatment of Nelfinavir-Associated Diarrhea [Terminated]
The purpose of this study was to determine the efficacy and safety of calcium carbonate for the prevention of nelfinavir-associated diarrhea and to evaluate the efficacy and safety of calcium carbonate in combination with loperamide for the treatment of nelfinavir-associated diarrhea.

Effectiveness of a New Anti-HIV Drug (AG1549) Plus Viracept (Nelfinavir) Plus Combivir (Zidovudine/Lamivudine) in HIV-Infected Patients [Suspended]
The purpose of this study is to look at the effectiveness of giving a new anti-HIV drug (AG1549) plus Viracept (nelfinavir) plus Combivir (a tablet containing zidovudine plus lamivudine) to HIV-infected patients who are not taking anti-HIV drugs.

Viracept Expanded Access Program [Completed]
To make nelfinavir mesylate (Viracept) available for treatment of HIV positive patients who are unable to take the three commercially available protease inhibitors (because of failure, intolerance, or contraindication) and who have a CD4 cell count of <= 50. To obtain additional information on the safety profile of nelfinavir mesylate (Viracept).

(PER AMENDMENT 1/8/97: People now qualify for the Viracept Program if they are unable to take indinavir and/or ritonavir due to intolerance, contraindication or prior failure.)

The Safety and Effectiveness of Nevirapine Plus Nelfinavir in HIV-1 Infected Patients Who Have Taken Stavudine [Completed]
To determine the potential effects of 28 days of nevirapine treatment on the steady-state pharmacokinetics of nelfinavir and of stavudine (d4T), and to further evaluate the pharmacokinetics of nevirapine in combination with nelfinavir, and d4T compared to the historical controls treated with nevirapine but without nelfinavir or d4T. To determine the efficacy of long-term combination therapy of nevirapine, nelfinavir and d4T on viral load in patients who are non-nucleoside reverse transcriptase inhibitor (NNRTI) and protease inhibitor naive, and have <= 6 months prior d4T exposure at the time of screening.

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