EDURANT (Page 2 of 9)

5.2 Hepatotoxicity

Hepatic adverse events have been reported in patients receiving a rilpivirine-containing regimen. Patients with underlying hepatitis B or C virus infection, or marked elevations in transaminases prior to treatment may be at increased risk for worsening or development of transaminase elevations with use of EDURANT. A few cases of hepatic toxicity have been reported in adult patients receiving a rilpivirine-containing regimen who had no pre-existing hepatic disease or other identifiable risk factors. Appropriate laboratory testing prior to initiating therapy and monitoring for hepatotoxicity during therapy with EDURANT is recommended in patients with underlying hepatic disease such as hepatitis B or C virus infection, or in patients with marked elevations in transaminases prior to treatment initiation. Liver enzyme monitoring should also be considered for patients without pre-existing hepatic dysfunction or other risk factors.

5.3 Depressive Disorders

The adverse reaction depressive disorders (depressed mood, depression, dysphoria, major depression, mood altered, negative thoughts, suicide attempt, suicidal ideation) has been reported with EDURANT. Patients with severe depressive symptoms should seek immediate medical evaluation to assess the possibility that the symptoms are related to EDURANT, and if so, to determine whether the risks of continued therapy outweigh the benefits.

During the Phase 3 trials in adults (N = 1368) through 96 weeks, the incidence of depressive disorders (regardless of causality, severity) reported among EDURANT (n = 686) or efavirenz (n = 682) was 9% and 8%, respectively. Most events were mild or moderate in severity. The incidence of Grade 3 and 4 depressive disorders (regardless of causality) was 1% for both EDURANT and efavirenz. The incidence of discontinuation due to depressive disorders among EDURANT or efavirenz was 1% in each arm. Suicidal ideation was reported in 4 subjects in each arm while suicide attempt was reported in 2 subjects in the EDURANT arm.

During the Phase 2 trial in pediatric subjects 12 to less than 18 years of age (N = 36) receiving EDURANT through 48 weeks, the incidence of depressive disorders (regardless of causality, severity) was 19.4% (7/36). Most events were mild or moderate in severity. The incidence of Grade 3 and 4 depressive disorders (regardless of causality) was 5.6% (2/36). None of the subjects discontinued due to depressive disorders. Suicidal ideation and suicide attempt were reported in 1 subject.

5.4 Risk of Adverse Reactions or Loss of Virologic Response Due to Drug Interactions

The concomitant use of EDURANT and other drugs may result in potentially significant drug interactions, some of which may lead to [see Dosage and Administration (2.3), Contraindications (4), and Drug Interactions (7)]:

  • Loss of therapeutic effect of EDURANT and possible development of resistance.

In healthy subjects, 75 mg once daily and 300 mg once daily (3 times and 12 times the dose in EDURANT) have been shown to prolong the QTc interval of the electrocardiogram. Consider alternatives to EDURANT when coadministered with a drug that is known to have a risk of torsade de pointes [see Drug Interactions (7) and Clinical Pharmacology (12.2)].

See Table 5 for steps to prevent or manage these possible and known significant drug interactions, including dosing recommendations. Consider the potential for drug interactions prior to and during EDURANT therapy and review concomitant medications during EDURANT therapy.

5.5 Fat Redistribution

Redistribution/accumulation of body fat, including central obesity, dorsocervical fat enlargement (buffalo hump), peripheral wasting, facial wasting, breast enlargement, and “cushingoid appearance” have been observed in patients receiving antiretroviral therapy. The mechanism and long-term consequences of these events are currently unknown. A causal relationship has not been established.

5.6 Immune Reconstitution Syndrome

Immune reconstitution syndrome has been reported in patients treated with combination antiretroviral therapy, including EDURANT. During the initial phase of combination antiretroviral treatment, patients whose immune system responds may develop an inflammatory response to indolent or residual opportunistic infections (such as Mycobacterium avium infection, cytomegalovirus, Pneumocystis jirovecii pneumonia or tuberculosis), which may necessitate further evaluation and treatment.

Autoimmune disorders (such as Graves’ disease, polymyositis, Guillain-Barré syndrome, and autoimmune hepatitis) have also been reported to occur in the setting of immune reconstitution; however, the time to onset is more variable, and can occur many months after initiation of treatment.

6 ADVERSE REACTIONS

The following adverse reactions are discussed below and in other sections of the labeling:

6.1 Clinical Trials Experience

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 clinical practice.

Clinical Trials Experience in Adults

The safety assessment is based on the Week 96 pooled data from 1368 patients in the Phase 3 controlled trials TMC278-C209 (ECHO) and TMC278-C215 (THRIVE) in antiretroviral treatment-naïve HIV-1 infected adult patients, 686 of whom received EDURANT (25 mg once daily) [see Clinical Studies (14.1)]. The median duration of exposure for patients in the EDURANT arm and efavirenz arm was 104.3 and 104.1 weeks, respectively. Most ADRs occurred in the first 48 weeks of treatment. The proportion of subjects who discontinued treatment with EDURANT or efavirenz due to ADR, regardless of severity, was 2% and 4%, respectively. The most common ADRs leading to discontinuation were psychiatric disorders: 10 (1%) subjects in the EDURANT arm and 11 (2%) subjects in the efavirenz arm. Rash led to discontinuation in 1 (0.1%) subject in the EDURANT arm and 10 (1.5%) subjects in the efavirenz arm.

Common Adverse Drug Reactions

ADRs of at least moderate intensity (≥Grade 2) reported in at least 2% of adult subjects are presented in Table 2. Selected laboratory abnormalities are included in Table 3.

Table 2: Selected Adverse Drug Reactions of at least Moderate Intensity * (Grades 2–4) Occurring in at Least 2% of Antiretroviral Treatment-Naïve HIV-1 Infected Adult Subjects (Week 96 Analysis)
System Organ Class,Preferred Term,% Pooled Data from the Phase 3 TMC278-C209 and TMC278-C215 Trials
EDURANT + BRN=686 Efavirenz + BRN=682
N=total number of subjects per treatment group; BR=background regimen
*
Intensities are defined as follows: Moderate (discomfort enough to cause interference with usual activity); Severe (incapacitating with inability to work or do usual activity).
Includes adverse drug reactions reported as depressed mood, depression, dysphoria, major depression, mood altered, negative thoughts, suicide attempt, suicide ideation.
Gastrointestinal Disorders
Abdominal pain 2% 2%
Nausea 1% 3%
Vomiting 1% 2%
General Disorders and Administration Site Conditions
Fatigue 2% 2%
Nervous System Disorders
Headache 3% 4%
Dizziness 1% 7%
Psychiatric Disorders
Depressive disorders 5% 4%
Insomnia 3% 4%
Abnormal dreams 2% 4%
Skin and Subcutaneous Tissue Disorders
Rash 3% 11%

No new ADR terms were identified in adult subjects in the Phase 3 TMC278-C209 and TMC278-C215 trials between 48 weeks and 96 weeks nor in the Phase 2b TMC278-C204 trial through 240 weeks. The incidence of adverse events in the Phase 2b TMC278-C204 trial was similar to the Phase 3 trials through 96 weeks.

Less Common Adverse Drug Reactions

ADRs of at least moderate intensity (≥Grade 2) occurring in less than 2% of antiretroviral treatment-naïve subjects receiving EDURANT are listed below by System Organ Class. Some adverse events have been included because of investigator’s assessment of potential causal relationship and were considered serious or have been reported in more than 1 subject treated with EDURANT.

Gastrointestinal Disorders: diarrhea, abdominal discomfort

Hepatobiliary Disorders: cholecystitis, cholelithiasis

Metabolism and Nutrition Disorders: decreased appetite

Nervous System Disorders: somnolence

Psychiatric Disorders: sleep disorders, anxiety

Renal and Urinary Disorders: glomerulonephritis membranous, glomerulonephritis mesangioproliferative, nephrolithiasis

Laboratory Abnormalities in Treatment-Naïve Subjects

The percentage of subjects treated with EDURANT or efavirenz in the Phase 3 trials with selected laboratory abnormalities (Grades 1 to 4), representing worst Grade toxicity are shown in Table 3.

Table 3: Selected Changes in Laboratory Parameters (Grades 1 to 4) Observed in Antiretroviral Treatment-Naïve HIV-1-Infected Adult Subjects (Week 96 Analysis)
Laboratory Parameter Abnormality, (%) DAIDS Toxicity Range Pooled Data from the Phase 3 TMC278-C209 and TMC278-C215 Trials
EDURANT + BRN=686 Efavirenz + BRN=682
BIOCHEMISTRY
BR = background regimen; ULN = upper limit of normal
N = number of subjects per treatment group
Note: Percentages were calculated versus the number of subjects in ITT.
Increased Creatinine
Grade 1 ≥ 1.1–≤ 1.3 × ULN 6% 1%
Grade 2 > 1.3–≤ 1.8 × ULN 1% 1%
Grade 3 > 1.8–≤ 3.4 × ULN <1% 0
Grade 4 > 3.4 × ULN 0 <1%
Increased AST
Grade 1 ≥ 1.25–≤ 2.5 × ULN 16% 19%
Grade 2 > 2.5–≤ 5.0 × ULN 4% 7%
Grade 3 > 5.0–≤ 10.0 × ULN 2% 2%
Grade 4 > 10.0 × ULN 1% 1%
Increased ALT
Grade 1 ≥ 1.25–≤ 2.5 × ULN 18% 20%
Grade 2 > 2.5–≤ 5.0 × ULN 5% 7%
Grade 3 > 5.0–≤ 10.0 × ULN 1% 2%
Grade 4 > 10.0 × ULN 1% 1%
Increased Total Bilirubin
Grade 1 ≥ 1.1–≤ 1.5 × ULN 5% <1%
Grade 2 > 1.5–≤ 2.5 × ULN 3% 1%
Grade 3 > 2.5–≤ 5.0 × ULN 1% <1%
Grade 4 > 5.0 × ULN 0 0
Increased Total Cholesterol (fasted)
Grade 1 5.18–6.19 mmol/L200–239 mg/dL 17% 31%
Grade 2 6.20–7.77 mmol/L240–300 mg/dL 7% 19%
Grade 3 > 7.77 mmol/L> 300 mg/dL <1% 3%
Increased LDL Cholesterol (fasted)
Grade 1 3.37–4.12 mmol/L130–159 mg/dL 14% 26%
Grade 2 4.13–4.90 mmol/L160–190 mg/dL 5% 13%
Grade 3 ≥ 4.91 mmol/L≥ 191 mg/dL 1% 5%
Increased Triglycerides (fasted)
Grade 2 5.65–8.48 mmol/L500–750 mg/dL 2% 2%
Grade 3 8.49–13.56 mmol/L751–1,200 mg/dL 1% 3%
Grade 4 > 13.56 mmol/L> 1,200 mg/dL 0 1%

Adrenal Function

In the pooled Phase 3 trials, at Week 96, there was an overall mean change from baseline in basal cortisol of -0.69 (-1.12, 0.27) micrograms/dL in the EDURANT group and of -0.02 (-0.48, 0.44) micrograms/dL in the efavirenz group.

In the EDURANT group, 43/588 (7.3%) of subjects with a normal 250 micrograms ACTH stimulation test at baseline developed an abnormal 250 micrograms ACTH stimulation test (peak cortisol level < 18.1 micrograms/dL) during the trial compared to 18/561 (3.2%) in the efavirenz group. Of the subjects who developed an abnormal 250 micrograms ACTH stimulation test during the trial, fourteen subjects in the EDURANT group and nine subjects in the efavirenz group had an abnormal 250 micrograms ACTH stimulation test at Week 96. Overall, there were no serious adverse events, deaths, or treatment discontinuations that could clearly be attributed to adrenal insufficiency. The clinical significance of the higher abnormal rate of 250 micrograms ACTH stimulation tests in the EDURANT group is not known.

Serum Creatinine

In the pooled Phase 3 trials, an increase in serum creatinine was observed over the 96 weeks of treatment with EDURANT. Most of this increase occurred within the first four weeks of treatment, with a mean change of 0.1 mg/dL (range: -0.3 mg/dL to 0.6 mg/dL) observed after 96 weeks of treatment. In subjects who entered the trial with mild or moderate renal impairment, the serum creatinine increase observed was similar to that seen in subjects with normal renal function. These changes are not considered to be clinically relevant and no subject discontinued treatment due to increases in serum creatinine. Serum creatinine increases occurred regardless of the background N(t)RTI regimen.

Serum Lipids

Changes from baseline in total cholesterol, LDL-cholesterol, HDL-cholesterol and triglycerides are presented in Table 4. The clinical benefit of these findings has not been demonstrated.

Table 4: Lipid Values, Mean Change from Baseline *
Pooled Data from the Week 96 Analysis of the Phase 3 TMC278-C209 and TMC278-C215 Trials
EDURANT + BR Efavirenz + BR
N Baseline Week 96 N Baseline Week 96
Mean(95% CI) Mean(mg/dL) Mean(mg/dL) Mean Change (mg/dL) Mean(mg/dL) Mean(mg/dL) Mean Change (mg/dL)
N = number of subjects per treatment group; BR = background regimen
*
Excludes subjects who received lipid lowering agents during the treatment period
The change from baseline is the mean of within-patient changes from baseline for patients with both baseline and Week 96 values
Total Cholesterol(fasted) 546 161 166 5 507 160 187 28
HDL-cholesterol(fasted) 545 41 46 4 505 40 51 11
LDL-cholesterol(fasted) 543 96 98 1 503 95 109 14
Triglycerides(fasted) 546 122 116 -6 507 130 141 11

Subjects Co-infected with Hepatitis B and/or Hepatitis C Virus

In subjects co-infected with hepatitis B or C virus receiving EDURANT, the incidence of hepatic enzyme elevation was higher than in subjects receiving EDURANT who were not co-infected. This observation was the same in the efavirenz arm. The pharmacokinetic exposure of rilpivirine in co-infected subjects was comparable to that in subjects without co-infection.

Use in Combination with Cabotegravir

Safety findings from Phase 3 trials in adults were similar when EDURANT was administered in combination with VOCABRIA (cabotegravir) or other antiretrovirals. See full prescribing information for VOCABRIA and CABENUVA (cabotegravir; rilpivirine) extended-release injectable suspensions for additional information.

Clinical Trials Experience in Pediatric Patients

The safety assessment is based on the Week 48 analysis of the single-arm, open-label, Phase 2 trial, TMC278-C213, in which 36 antiretroviral treatment-naïve HIV-1 infected patients 12 to less than 18 years of age and weighing at least 32 kg received EDURANT (25 mg once daily) in combination with other antiretroviral agents [see Clinical Studies (14.3)]. The median duration of exposure was 63.5 weeks. There were no patients who discontinued treatment due to ADRs. No new ADRs were identified compared to those seen in adults.

ADRs were reported in nineteen pediatric subjects (52.8%). Most ADRs were Grade 1 or 2. The most common ADRs reported in at least 2 subjects (regardless of severity) include headache (19.4%), depression (19.4%), somnolence (13.9%), nausea (11.1%), dizziness (8.3%), abdominal pain (8.3), vomiting (5.6%) and rash (5.6%).

Observed laboratory abnormalities were comparable to those in adults.

Adrenal Function

In trial TMC278 C213, at Week 48, the overall mean change from baseline in basal cortisol showed an increase of 1.59 (0.24, 2.93) micrograms/dL.

Six of 30 (20%) subjects with a normal 250 micrograms ACTH stimulation test at baseline developed an abnormal 250 micrograms ACTH stimulation test (peak cortisol level < 18.1 micrograms/dL) during the trial. Three of these subjects had an abnormal 250 micrograms ACTH stimulation test at Week 48. Overall, there were no serious adverse events, deaths, or treatment discontinuations that could clearly be attributed to adrenal insufficiency. The clinical significance of the abnormal 250 micrograms ACTH stimulation tests is not known.

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