Newly added subsection:
5.10 Drug Reaction with Eosinophilia and Systemic
Symptoms (DRESS)
Drug Reaction with Eosinophilia and Systemic Symptoms
(DRESS) has been reported in patients taking NSAIDs such as TIVORBEX. Some of
these events have been fatal or life- threatening. DRESS typically, although
not exclusively, presents with fever, rash, lymphadenopathy, and/or facial
swelling. Other clinical manifestations may include hepatitis, nephritis,
hematological abnormalities, myocarditis, or myositis. Sometimes symptoms of
DRESS may resemble an acute viral infection. Eosinophilia is often present.
Because this disorder is variable in its presentation, other organ systems not
noted here may be involved. It is important to note that early manifestations
of hypersensitivity, such as fever or lymphadenopathy, may be present even
though rash is not evident. If such signs or symptoms are present, discontinue
TIVORBEX and evaluate the patient immediately.
Additions and/or revisions underlined:
5.11
Fetal Toxicity
Premature Closure
of Fetal Ductus Arteriosus
Avoid use of
NSAIDs, including TIVORBEX, in pregnant women at about 30 weeks
gestation and later. NSAIDs, including TIVORBEX, increase the risk of
premature closure of the fetal ductus arteriosus at approximately this
gestational age.
Oligohydramnios/Neonatal
Renal Impairment
Use of NSAIDs,
including TIVORBEX, at about 20 weeks gestation or later in pregnancy may cause
fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal
renal impairment. These adverse outcomes are seen, on average, after days to
weeks of treatment, although oligohydramnios has been infrequently reported as
soon as 48 hours after NSAID initiation. Oligohydramnios is often, but not
always, reversible with treatment discontinuation. Complications of prolonged
oligohydramnios may, for example, include limb contractures and delayed lung
maturation. In some postmarketing cases of impaired neonatal renal function,
invasive procedures such as exchange transfusion or dialysis were required.
If NSAID treatment
is necessary between about 20 weeks and 30 weeks gestation, limit TIVORBEX use
to the lowest effective dose and shortest duration possible. Consider
ultrasound monitoring of amniotic fluid if TIVORBEX treatment extends beyond 48
hours. Discontinue TIVORBEX if oligohydramnios occurs and follow up according
to clinical practice
[see Use in Specific Populations (8.1)]
Additions and/or
revisions underlined:
Risk Summary
Use of NSAIDs,
including TIVORBEX, can cause premature closure of the fetal ductus
arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some
cases, neonatal renal impairment. Because of these risks, limit dose and
duration of TIVORBEX use between about 20 and 30 weeks of gestation, and avoid
TIVORBEX use at about 30 weeks of gestation and later in pregnancy (see Clinical Considerations, Data).
Premature
Closure of Fetal Ductus Arteriosus
Use of NSAIDs,
including TIVORBEX, at about 30 weeks gestation or later in pregnancy
increases the risk of premature closure of the fetal ductus arteriosus.
Oligohydramnios/Neonatal
Renal Impairment
Use of NSAIDs at
about 20 weeks gestation or later in pregnancy has been associated with cases
of fetal renal dysfunction leading to oligohydramnios, and in some cases,
neonatal renal impairment.
There are no
adequate and well-controlled studies of TIVORBEX in pregnant women …
… In animal
studies, administration of prostaglandin synthesis inhibitors such as indomethacin,
resulted in increased pre- and post-implantation loss. Prostaglandins also
have been shown to have an important role in fetal kidney development. In
published animal studies, prostaglandin synthesis inhibitors have been reported
to impair kidney development when administered at clinically relevant doses.
The estimated
background risk of major birth defects and miscarriage for the indicated
population(s) is unknown. All pregnancies have a background risk of birth
defect, loss, or other adverse outcomes. In the U.S. general population, the
estimated background risk of major birth defects and miscarriage in clinically
recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Clinical
Considerations
Fetal/Neonatal
Adverse Reactions
Premature Closure
of Fetal Ductus Arteriosus:
Avoid use of
NSAIDs in women at about 30 weeks gestation and later in pregnancy, because
NSAIDs, including TIVORBEX, can cause premature closure of the fetal ductus
arteriosus (see Data).
Oligohydramnios/Neonatal
Renal Impairment:
If an NSAID is
necessary at about 20 weeks gestation or later in pregnancy, limit the use to
the lowest effective dose and shortest duration possible. If TIVORBEX treatment
extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios.
If oligohydramnios occurs, discontinue TIVORBEX and follow up according to
clinical practice (see Data).
Labor
or Delivery …
Data
Human Data
Premature Closure of Fetal Ductus Arteriosus:
Published literature reports that the use of NSAIDs at about 30 weeks
of gestation and later in pregnancy may cause premature closure of the fetal
ductus arteriosus.
Oligohydramnios/Neonatal Renal Impairment:
Published studies and postmarketing reports describe maternal NSAID use
at about 20 weeks gestation or later in pregnancy associated with fetal renal
dysfunction leading to oligohydramnios, and in some cases, neonatal renal
impairment. These adverse outcomes are seen, on average, after days to weeks of
treatment, although oligohydramnios has been infrequently reported as soon as
48 hours after NSAID initiation. In many cases, but not all, the decrease in
amniotic fluid was transient and reversible with cessation of the drug. There
have been a limited number of case reports of maternal NSAID use and neonatal
renal dysfunction without oligohydramnios, some of which were irreversible.
Some cases of neonatal renal dysfunction required treatment with
invasive procedures, such as exchange transfusion or dialysis. Methodological
limitations of these postmarketing studies and reports include lack of a
control group; limited information regarding dose, duration, and timing of drug
exposure; and concomitant use of other medications. These limitations preclude
establishing a reliable estimate of the risk of adverse fetal and neonatal
outcomes with maternal NSAID use. Because the published safety data on neonatal
outcomes involved mostly preterm infants, the generalizability of certain
reported risks to the full-term infant exposed to NSAIDs through maternal use
is uncertain.
Data
Animal data …
Additions
and/or revisions underlined:
Serious Skin Reactions, including DRESS
Advise patients to stop taking TIVORBEX immediately if they
develop any type of rash or fever and to contact their healthcare
provider as soon as possible [see Warnings and Precautions (5.9, 5.10)].
Fetal Toxicity
Inform pregnant women to avoid use of TIVORBEX and other NSAIDs
starting at 30 weeks gestation because of the risk of the premature closing of
the fetal ductus arteriosus. If treatment with TIVORBEX is needed for a
pregnant woman between about 20 to 30 weeks gestation, advise her that she may
need to be monitored for oligohydramnios, if treatment continues for longer than
48 hours [see Warnings and Precautions (5.11) and Use in Specific
Populations (8.1)].