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Sovaldi

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Sovaldi

Sovaldi Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Sovaldi (sofosbuvir) a nucleotide analog inhibitor of HCV NS5B polymerase used to treat chronic hepatitis C (CHC) infection as a component of a combination antiviral treatment regimen. Common side effects include fatigue, headache, nausea, insomnia, itching, rash, decreased appetite, and diarrhea.

The recommended dose of Sovaldi is one 400 mg tablet, taken orally, once daily with or without food. Sovaldi may interact with carbamazepine, oxcarbazepine, phenytoin, phenobarbital, rifabutin, rifampin, rifapentine, St. John's wort, or tipranavir. Tell your doctor all medications and supplements you use. Sovaldi is not recommended for use during pregnancy. It can harm a fetus. Females must have a negative pregnancy test before starting treatment with Sovaldi. Males and females using this drug must use 2 forms of birth control while using Sovaldi and for 6 months after treatment has ended. It is unknown if this drug passes into breast milk. Consult your doctor before breastfeeding.

Our Sovaldi (sofosbuvir) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Sovaldi FDA Prescribing Information: Side Effects
(Adverse Reactions)

SIDE EFFECTS

Adverse Reactions From Clinical Trials Experience

SOVALDI should be administered with ribavirin or peginterferon alfa/ribavirin. Refer to the prescribing information of peginterferon alfa and ribavirin for a description of adverse reactions associated with their use.

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

The safety assessment of SOVALDI is based on pooled Phase 3 clinical trial data (both controlled and uncontrolled) including 650 subjects who received SOVALDI + ribavirin (RBV) combination therapy for 12 weeks, 98 subjects who received SOVALDI + ribavirin combination therapy for 16 weeks, 250 subjects who received SOVALDI + ribavirin combination therapy for 24 weeks, 327 subjects who received SOVALDI + peginterferon (Peg-IFN) alfa + ribavirin combination therapy for 12 weeks, 243 subjects who received peginterferon alfa + ribavirin for 24 weeks and 71 subjects who received placebo (PBO) for 12 weeks.

The proportion of subjects who permanently discontinued treatment due to adverse events was 4% for subjects receiving placebo, 1% for subjects receiving SOVALDI + ribavirin for 12 weeks, < 1% for subjects receiving SOVALDI + ribavirin for 24 weeks, 11% for subjects receiving peginterferon alfa + ribavirin for 24 weeks and 2% for subjects receiving SOVALDI + peginterferon alfa + ribavirin for 12 weeks.

Treatment-emergent adverse events observed in ≥ 15% of subjects in clinical trials are provided in Table 3. A side-by-side tabulation is to simplify presentation; direct comparison across trials should not be made due to differing trial designs.

The most common adverse events ( ≥ 20%) for SOVALDI + ribavirin combination therapy were fatigue and headache. The most common adverse events ( ≥ 20%) for SOVALDI + peginterferon alfa + ribavirin combination therapy were fatigue, headache, nausea, insomnia and anemia.

Table 3 Treatment-Emergent Adverse Events (All Grades) Reported in ≥ 15% of Subjects in Any Treatment Arm

  Interferon-free Regimens Interferon-containing Regimens
PBO 12 weeks SOVALDI + RBVa 12 weeks SOVALDI + RBVa 24 weeks Peg-IFN alfa + RBVb 24 weeks SOVALDI + Peg-IFN alfa + RBVa 12 weeks
N=71 N=650 N=250 N=243 N=327
Fatigue 24% 38% 30% 55% 59%
Headache 20% 24% 30% 44% 36%
Nausea 18% 22% 13% 29% 34%
Insomnia 4% 15% 16% 29% 25%
Pruritus 8% 11% 27% 17% 17%
Anemia 0% 10% 6% 12% 21%
Asthenia 3% 6% 21% 3% 5%
Rash 8% 8% 9% 18% 18%
Decreased Appetite 10% 6% 6% 18% 18%
Chills 1% 2% 2% 18% 17%
Influenza Like Illness 3% 3% 6% 18% 16%
Pyrexia 0% 4% 4% 14% 18%
Diarrhea 6% 9% 12% 17% 12%
Neutropenia 0% < 1% < 1% 12% 17%
Myalgia 0% 6% 9% 16% 14%
Irritability 1% 10% 10% 16% 13%
a Subjects received weight-based ribavirin (1000 mg per day if weighing < 75 kg or 1200 mg per day if weighing ≥ 75 kg).
b Subjects received 800 mg ribavirin per day regardless of weight.

With the exception of anemia and neutropenia, the majority of events presented in Table 3 occurred at severity of grade 1 in SOVALDI-containing regimens.

Less Common Adverse Reactions Reported in Clinical Trials ( < 1%): The following ADRs occurred in < 1% of subjects receiving SOVALDI in a combination regimen in any one trial. These events have been included because of their seriousness or assessment of potential causal relationship.

Hematologic Effects: pancytopenia (particularly in subjects receiving concomitant pegylated interferon).

Psychiatric Disorders: severe depression (particularly in subjects with pre-existing history of psychiatric illness), including suicidal ideation and suicide.

Laboratory Abnormalities

Changes in selected hematological parameters are described in Table 4. A side-by-side tabulation is to simplify presentation; direct comparison across trials should not be made due to differing trial designs.

Table 4 : Percentage of Subjects Reporting Selected Hematological Parameters

Hematological Parameters Interferon-free Regimens Interferon-containing Regimens
PBO 12 weeks SOVALDI + RBVa 12 weeks SOVALDI + RBVa 24 weeks Peg-IFN + RBVb 24 weeks SOVALDI + Peg-IFN + RBVa 12 weeks
N=71 N=647 N=250 N=242 N=327
Hemoglobin (g/dL)
   < 10 0 8% 6% 14% 23%
   < 8.5 0 1% < 1% 2% 2%
Neutrophils (x109/L)
   ≥ 0.5 - < 0.75 1% < 1% 0 12% 15%
   < 0.5 0 < 1% 0 2% 5%
Platelets (x109/L)
   ≥ 25 - < 50 3% < 1% 1% 7% < 1%
   < 25 0 0 0 0 0
a Subjects received weight-based ribavirin (1000 mg per day if weighing < 75 kg or 1200 mg per day if weighing ≥ 75 kg).
b Subjects received 800 mg ribavirin per day regardless of weight.

Bilirubin Elevations

Total bilirubin elevation of more than 2.5xULN was observed in none of the subjects in the SOVALDI + peginterferon alfa + ribavirin 12 weeks group and in 1%, 3% and 3% of subjects in the peginterferon alfa + ribavirin 24 weeks, SOVALDI + ribavirin 12 weeks and SOVALDI + ribavirin 24 weeks groups, respectively. Bilirubin levels peaked during the first 1 to 2 weeks of treatment and subsequently decreased and returned to baseline levels by post-treatment Week 4. These bilirubin elevations were not associated with transaminase elevations.

Creatine Kinase Elevations

Creatine kinase was assessed in the FISSION and NEUTRINO trials. Isolated, asymptomatic creatine kinase elevation of greater than or equal to 10xULN was observed in < 1%, 1% and 2% of subjects in the peginterferon alfa + ribavirin 24 weeks, SOVALDI + peginterferon alfa + ribavirin 12 weeks and SOVALDI + ribavirin 12 weeks groups, respectively.

Lipase Elevations

Isolated, asymptomatic lipase elevation of greater than 3xULN was observed in < 1%, 2%, 2%, and 2% of subjects in the SOVALDI + peginterferon alfa + ribavirin 12 weeks, SOVALDI + ribavirin 12 weeks, SOVALDI + ribavirin 24 weeks and peginterferon alfa + ribavirin 24 weeks groups, respectively.

Read the entire FDA prescribing information for Sovaldi (Sofosbuvir Tablets) »

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