WARNINGS: LACTIC ACIDOSIS/SEVERE HEPATOMEGALY WITH STEATOSIS and POST TREATMENT EXACERBATION OF HEPATITIS
Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases, have been reported with the use of nucleoside analogs, including VIREAD, in combination with other antiretrovirals [See Warnings and Precautions].
Severe acute exacerbations of hepatitis have been reported in HBV-infected patients who have discontinued anti-hepatitis B therapy, including VIREAD. Hepatic function should be monitored closely with both clinical and laboratory follow-up for at least several months in patients who discontinue anti-hepatitis B therapy, including VIREAD. If appropriate, resumption of anti-hepatitis B therapy may be warranted [See Warnings and Precautions].
VIREAD is the brand name for tenofovir disoproxil fumarate (a prodrug of tenofovir) which is a fumaric acid salt of bis -isopropoxycarbonyloxymethyl ester derivative of tenofovir. In vivo tenofovir disoproxil fumarate is converted to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5'-monophosphate. Tenofovir exhibits activity against HIV-1 reverse transcriptase.
VIREAD is indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection. This indication is based on analyses of plasma HIV-1 RNA levels and CD4 cell counts in controlled studies of VIREAD in treatment-na[iuml ]ve adults and in treatment-experienced adults.
Additional important information regarding the use of VIREAD for the treatment of HIV-1 infection:
There are no study results demonstrating the effect of VIREAD on clinical progression of HIV-1.
The use of VIREAD should be considered for treating adult patients with HIV-1 strains that are expected to be susceptible to tenofovir as assessed by laboratory testing or treatment history (see Description of Clinical Studies).
Media Articles Related to Viread (Tenofovir Disoproxil)
FDA OKs HIV 'Quad' Pill
Source: MedPage Today Product Alert [2012.08.28]
WASHINGTON -- The FDA has approved Stribild, the four-drug combination of elvitegravir, cobicistat, emtricitabine, and tenofovir disoproxil fumarate, for once-daily treatment of HIV in adults who have never received HIV treatment.
Published Studies Related to Viread (Tenofovir Disoproxil)
Association of higher plasma vitamin D binding protein and lower free calcitriol
levels with tenofovir disoproxil fumarate use and plasma and intracellular
tenofovir pharmacokinetics: cause of a functional vitamin D deficiency? 
Tenofovir disoproxil fumarate (TDF) causes bone, endocrine, and renal changes by
an unknown mechanism(s)... Separate pharmacokinetic properties may be
associated with distinct TDF toxicities: tenofovir with parathyroid hormone and
altered calcium balance and tenofovir diphosphate with hypophosphatemia and FGF23
Antiretroviral prophylaxis for HIV infection in injecting drug users in Bangkok,
Thailand (the Bangkok Tenofovir Study): a randomised, double-blind,
placebo-controlled phase 3 trial. 
users... INTERPRETATION: In this study, daily oral tenofovir reduced the risk of HIV
Sexual risk behavior among HIV-uninfected men who have sex with men participating
in a tenofovir preexposure prophylaxis randomized trial in the United States. 
enrollment or after a 9-month delay and followed for 24 months... CONCLUSIONS: There was no evidence of risk compensation among HIV-uninfected MSM
A randomized double-blind comparison of coformulated
elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate versus
efavirenz/emtricitabine/tenofovir disoproxil fumarate for initial treatment of
HIV-1 infection: analysis of week 96 results. 
We report week 96 results from a phase 3 trial of
elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate
(EVG/COBI/FTC/TDF, n = 348) vs efavirenz/emtricitabine/tenofovir disoproxil
fumarate (EFV/FTC/TDF, n = 352). At week 48, EVG/COBI/FTC/TDF was noninferior to
EFV/FTC/TDF (88% vs 84%, difference +3.6%, 95% confidence interval: -1.6% to
Hepatitis B virus wild-type and rtN236T populations show similar early HBV DNA
decline in adefovir refractory patients on a tenofovir-based regimen. 
Hepatitis B virus (HBV) pol/RT mutations that confer clinical resistance to
tenofovir disoproxil fumarate (TDF) have not been detected to date. In vitro, the
rtN236T adefovir dipivoxil (ADV)-associated resistance mutation confers low-level
cross-resistance to tenofovir: 3- to 13-fold changes in EC(50) from wild type...
Clinical Trials Related to Viread (Tenofovir Disoproxil)
A 96 Week Study to Compare Tenofovir Versus Tenofovir Plus Emtricitabine for the Treatment of Chronic Hepatitis B [Active, not recruiting]
Safety and Effectiveness of Tenofovir 1% Gel, Tenofovir Disproxil Fumarate, and Emtricitabine/Tenofovir Disoproxil Fumarate Tablets in Preventing HIV in Women [Recruiting]
A new approach to HIV prevention currently being studied includes the use of microbicides,
substances that kill microbes. Tenofovir disoproxil fumarate (TDF) and
emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) are oral, FDA-approved, anti-HIV
drugs, and tenofovir gel is an experimental microbicide. The purpose of this study is to
determine the safety and effectiveness of daily tenofovir 1% gel compared to a vaginal
placebo gel, and the safety and effectiveness of oral TDF and oral FTC/TDF compared to an
oral placebo in preventing HIV infection among women at risk for sexually transmitted
Kaletra and Viread in Antiretroviral Na├»ve Patients [Recruiting]
Once daily antiretroviral therapy with Viread (tenofovir DF, 300mg) plus Kaletra (LPV/r,
800mg/200mg) will be effective in suppressing and maintaining suppression of HIV RNA to <50
copies/ml in antiretroviral na´ve patients through 48 weeks of therapy.
Metabolic Impact Assessment of Tenofovir Disoproxil Fumarate on Non-HIV-1 Infected Healthy Adult Male Volunteers [Completed]
Metabolic changes commonly occur in HIV therapy. The purpose of this study is to assess the
impact on insulin sensitivity from the administration of tenofovir disoproxil fumarate 300 mg
compared with placebo in non-HIV-1 infected healthy adult males. Additionally, endothelial
function, adipocytokines and lipids will be monitored.
A Phase 1b Study Assessing GS-7340 in Treatment-Naive Adults With Chronic Hepatitis B [Recruiting]
Reports of Suspected Viread (Tenofovir Disoproxil) Side Effects
Renal Failure Acute (19),
Viral Load Increased (16),
Renal Failure (15),
Lactic Acidosis (14),
Fanconi Syndrome (13),
Maternal Exposure During Pregnancy (13),
Renal Impairment (12),
Drug Ineffective (10),
Abortion Spontaneous (9),
Death (9), more >>
Page last updated: 2014-11-30