WARNINGS
Included as part of the PRECAUTIONS section.
PRECAUTIONS
Coagulation Abnormalities
Even low doses of aspirin can inhibit platelet function
leading to an increase in bleeding time. This can adversely affect patients
with inherited (hemophilia) or acquired (liver disease or vitamin K deficiency)
bleeding disorders. Monitor patients for signs of increased bleeding.
Gastrointestinal Adverse Reactions
Aspirin is associated with serious gastrointestinal (GI)
adverse reactions, including inflammation, bleeding ulceration and perforation
of the upper and lower GI tract. Other adverse reactions with aspirin include
stomach pain, heartburn, nausea, and vomiting.
Serious GI adverse reactions reported in the clinical
trials of YOSPRALA were: gastric ulcer hemorrhage in one of the 521 patients
treated with YOSPRALA and duodenal ulcer hemorrhage in one of the 524 patients
treated with enteric-coated aspirin. In addition, there were two cases of
intestinal hemorrhage, one in each treatment group, and one patient treated
with YOSPRALA experienced obstruction of the small bowel.
Although minor upper GI symptoms, such as dyspepsia, are
common and can occur anytime during therapy, monitor patients for signs of
ulceration and bleeding, even in the absence of previous GI symptoms. Inform
patients about the signs and symptoms of GI adverse reactions. If active and
clinically significant bleeding from any source occurs in patients receiving
YOSPRALA, discontinue treatment.
Bleeding Risk With Use Of Alcohol
Counsel patients who consume three or more alcoholic
drinks every day about the bleeding risks involved with chronic, heavy alcohol
use while taking YOSPRALA.
Interaction With Clopidogrel
Avoid concomitant use of YOSPRALA with clopidogrel.
Clopidogrel is a prodrug. Inhibition of platelet aggregation by clopidogrel is
entirely due to an active metabolite. The metabolism of clopidogrel to its
active metabolite can be impaired by use with concomitant medications, such as
omeprazole, that interfere with CYP2C19 activity. Co-administration of
clopidogrel with 80 mg omeprazole reduces the pharmacological activity of
clopidogrel, even when administered 12 hours apart. When using YOSPRALA, consider
alternative anti-platelet therapy [see DRUG INTERACTIONS, CLINICAL
PHARMACOLOGY].
Interaction With Ticagrelor
Maintenance doses of aspirin above 100 mg reduce the
effectiveness of ticagrelor in preventing thrombotic cardiovascular events.
Avoid concomitant use of ticagrelor with the 325 mg/40 mg tablet strength of
YOSPRALA [see DRUG INTERACTIONS].
Renal Failure
Avoid YOSPRALA in patients with severe renal failure
(glomerular filtration rate less than 10 mL/minute). Regular use of aspirin is
associated in a dose-dependent manner with an increased risk of chronic renal
failure. Aspirin use decreases glomerular filtration rate and renal blood flow
especially with patients with pre-existing renal disease. [see Use In Specific
Populations, CLINICAL PHARMACOLOGY].
Presence Of Gastric Malignancy
In adults, response to gastric symptoms with YOSPRALA
does not preclude the presence of gastric malignancy. Consider additional
gastrointestinal follow-up and diagnostic testing in adult patients who
experience gastric symptoms during treatment with YOSPRALA or have a
symptomatic relapse after completing treatment. In older patients, also consider
an endoscopy.
Acute Interstitial Nephritis
Acute interstitial nephritis has been observed in
patients taking PPIs including omeprazole. Acute interstitial nephritis may
occur at any point during PPI therapy and is generally attributed to an
idiopathic hypersensitivity reaction. Discontinue YOSPRALA if acute
interstitial nephritis develops [see CONTRAINDICATIONS].
Clostridium difficile-Associated
Diarrhea Published observational studies suggest that
PPI-containing therapy like YOSPRALA may be associated with an increased risk
of Clostridium difficile-associated diarrhea (CDAD), especially in hospitalized
patients. This diagnosis should be considered for diarrhea that does not
improve [see ADVERSE REACTIONS].
Use the lowest dose and shortest duration of YOSPRALA
appropriate to the condition being treated.
Bone Fracture
Several published observational studies suggest that PPI
therapy may be associated with an increased risk for osteoporosis-related
fractures of the hip, wrist, or spine. The risk of fracture was increased in
patients who received high-dose, defined as multiple daily doses, and longterm
PPI therapy (a year or longer). Use the lowest dose and shortest duration of
YOSPRALA therapy appropriate to the condition being treated. Manage patients at
risk for osteoporosis-related fractures according to established treatment
guidelines [see ADVERSE REACTIONS].
Cutaneous And Systemic Lupus Erythematosus
Cutaneous lupus erythematosus (CLE) and systemic lupus
erythematosus (SLE) have been reported in patients taking PPIs, including
omeprazole. These events have occurred as both new onset and an exacerbation of
existing autoimmune disease. The majority of PPI-induced lupus erythematous
cases were CLE.
The most common form of CLE reported in patients treated
with PPIs was subacute CLE (SCLE), and occurred within weeks to years after
continuous drug therapy in patients ranging from infants to the
elderly.Generally, histological findings were observed without organ
involvement.
Systemic lupus erythematosus (SLE) is less commonly
reported than CLE in patients receiving PPIs. PPI associated SLE is usually
milder than non-drug induced SLE. Onset of SLE typically occurred within days
to years after initiating treatment, but some cases occurred days or years
after initiating treatment. SLE occurred primarily in patients ranging from
young adults to the elderly. The majority of patients presented with rash;
however, arthralgia and cytopenia were also reported.
Avoid administration of PPIs for longer than medically
indicated. If signs or symptoms consistent with CLE or SLE are noted in
patients receiving YOSPRALA, discontinue the drug and refer the patient to the
appropriate specialist for evaluation. Most patients improve with
discontinuation of the PPI alone in 4 to 12 weeks. Serologicial testing (e.g.,
ANA) may be positive and elevated serologicial test results may take longer to
resolve than clinical manifestations.
ImpairmentLong-term moderate to high doses of aspirin may
result in elevations in serum ALT levels. These abnormalities resolve rapidly
with discontinuation of aspirin. The hepatotoxicity of aspirin is usually mild
and asymptomatic. Bilirubin elevations are usually mild or absent.
Systemic exposure to omeprazole is increased in patients
with hepatic impairment [see CLINICAL PHARMACOLOGY]. Avoid YOSPRALA in
patients with any degree of hepatic impairment [see Use In Specific
Populations].
Cyanocobalamin (Vitamin B-12) Deficiency
Daily treatment with any acid-suppressing medications
over a long period of time (e.g., longer than 3 years) may lead to
malabsorption of cyanocobalamin (vitamin B-12) caused by hypo-or achlorhydria.
Rare reports of cyanocobalamin deficiency occurring with acid-suppressing
therapy have been reported in the literature. This diagnosis should be
considered if clinical symptoms consistent with cyanocobalamin deficiency are
observed in patients treated with YOSPRALA.
Hypomagnesemia
Hypomagnesemia, symptomatic and asymptomatic, has been
reported rarely in patients treated with PPIs for at least three months, in
most cases after a year of therapy. Serious adverse events include tetany,
arrhythmias, and seizures. In most patients, treatment of hypomagnesemia
required magnesium replacement and discontinuation of the PPI. For patients expected
to be on prolonged treatment or who take YOSPRALA with medications such as
digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), consider
monitoring magnesium levels prior to initiation of YOSPRALA and periodically
during treatment [see ADVERSE REACTIONS].
Reduced Effect Of Omeprazole With St. John’s Wort Or Rifampin
Drugs which induce the CYP2C19 or CYP3A4 (such as St.
John's Wort or rifampin) can substantially decrease concentrations of
omeprazole. Avoid concomitant use of YOSPRALA with St. John's Wort or rifampin [see
DRUG INTERACTIONS].
Interactions With Diagnostic Investigations For Neuroendocrine
Tumors
Serum chromogranin A (CgA) levels increase secondary to
omeprazole-induced decreases in gastric acidity. The increased CgA level may
cause false positive results in diagnostic interventions for neuroendocrine
tumors. Temporarily discontinue treatment with YOSPRALA at least 14 days before
assessing CgA levels and consider repeating the test if initial CgA levels are
high. If serial tests are performed (e.g., for monitoring), the same commercial
laboratory should be used for testing, as reference ranges between tests may
vary [see DRUG INTERACTIONS and CLINICAL PHARMACOLOGY].
Interaction With Methotrexate
Literature suggests that concomitant use of PPIs with
methotrexate (primarily at high dose) may elevate and prolong serum levels of
methotrexate and/or its metabolite, possibly leading to methotrexate
toxicities. In high-dose methotrexate administration, a temporary withdrawal of
YOSPRALA may be considered in some patients [see DRUG INTERACTIONS].
Premature Closure Of Fetal Ductus Arteriosus
NSAIDs including aspirin, may cause premature closure of
the fetal ductus arteriosus. Avoid use of NSAIDs, including YOSPRALA, in
pregnant women starting at 30 weeks of gestation (third trimester). [see Use
In Specific Populations].
Abnormal Laboratory Tests
Aspirin has been associated with elevated hepatic enzymes,
blood urea nitrogen and serum creatinine, hyperkalemia, proteinuria, and
prolonged bleeding time.
Patient Counseling Information
Advise the patient to read the FDA-approved patient
labeling (Medication Guide).
Inform patients, families, or caregivers of the following
before initiating therapy with YOSPRALA and periodically during the course of
ongoing therapy.
Coagulation Abnormalities
Advise patients to inform their health care provider if
they experience any unanticipated, prolonged or excessive bleeding or bleeding
time (e.g. bruising, nose bleed) [see WARNINGS AND PRECAUTIONS].
GI Adverse Reactions
Advise patients to stop taking YOSPRALA and call their
health care provider right away if they have any of the following signs or
symptoms: 1) black, bloody, or tarry stools; 2) coughing up blood or vomit that
looks like coffee grounds; 3) severe nausea, vomiting, or stomach pain [see WARNINGS
AND PRECAUTIONS].
Bleeding Risk With Use Of Alcohol
Avise patients to avoid heavy alcohol use (three or more
drinks every day) during treatment with YOSPRALA during treatment with YOSPRALA
[see WARNINGS AND PRECAUTIONS].
Drug Interactions
Advise patients to report to their healthcare provider
before starting treatment with any of the following:
- Rilpivirine-containing products [see CONTRAINDICATIONS].
- Clopidogrel, ticagrelor, St. John's Wort or rifampin; or,
if they take high-dose methotrexate [see WARNINGS AND PRECAUTIONS].
Renal Failure
Advise patients to report to their health care provider
if they develop kidney problems (e.g. changes in urination, swelling, skin
rash/itching, ammonia breath) [see WARNINGS AND PRECAUTIONS].
Gastric Malignancy
Advise patients to return to their healthcare provider if
they have gastric symptoms while taking YOSPRALA or after completing treatment [see
WARNINGS AND PRECAUTIONS].
Acute Interstitial Nephritis
Advise patients to call their healthcare provider
immediately if they experience signs and/or symptoms associated with acute
interstitial nephritis [see WARNINGS AND PRECAUTIONS].
Clostridium difficile-Associated Diarrhea
Advise patients to call their health care provider
immediately if they experience diarrhea that does not improve [see WARNINGS
AND PRECAUTIONS].
Bone Fracture
Advise patients to report any fractures, especially of
the hip, wrist or spine, to their health care provider [see WARNINGS AND
PRECAUTIONS].
Cutaneous And Systemic Lupus Erythematosus
Advise patients to immediately call their health care
provider for any new or worsening of symptoms associated with cutaneous or
systemic lupus erythematosus [see WARNINGS AND PRECAUTIONS].
Hepatic Impairment
Advise patients to report to their health care provider
if they develop liver problems (e.g. skin and eyes that appear yellowish,
abdominal pain and swelling, itchy skin, dark urine color) [see WARNINGS AND
PRECAUTIONS].
Cyanocobalamin (Vitamin B-12) Deficiency
Advise patients to report any clinical symptoms that may
be associated with cyanocobalamin deficiency to their health care provider if
they have been receiving YOSPRALA for longer than 3 years [see WARNINGS AND
PRECAUTIONS].
Hypomagnesemia
Advise patients to report any clinical symptoms that may
be associated with hypomagnesemia to their health care provider, if they have
been receiving YOSPRALA for at least 3 months [see WARNINGS AND PRECAUTIONS].
Fetal Toxicity
Inform pregnant women to avoid use of YOSPRALA and other
NSAIDs starting at 30 weeks gestation because of the risk of the premature
closure of the fetal ductus arteriosus [see WARNINGS AND PRECAUTIONS and
Use In Specific Populations].
Lactation
Advise women that breastfeeding is not recommended during
treatment with YOSPRALA [see Use In Specific Populations].
Infertility
Advise females of reproductive potential that NSAIDs,
including YOSPRALA, may be associated with reversible infertility [see Use In
Specific Populations].
Administration
[see DOSAGE AND ADMINISTRATION]
Advise patients:
- To take YOSPRALA once daily at least 60 minutes before a
meal.
- The tablets are to be swallowed whole with liquid. Do not
split, chew, crush or dissolve the tablet.
- If a dose is missed, administer as soon as possible.
However, if the next scheduled dose is due, do not take the missed dose, and
take the next dose on time. Do not take two doses at one time to make up for a
missed dose, unless advised by their health care provider.
- Not to stop taking YOSPRALA suddenly as this could
increase the risk of heart attack or stroke.
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Studies to evaluate the potential effects of YOSPRALA on
carcinogenicity, mutagenicity, or impairment of fertility have not been
conducted.
Aspirin
Administration of aspirin for 68 weeks at 0.5% in the
feed of rats was not carcinogenic.
In the Ames Salmonella assay, aspirin was not mutagenic;
however, aspirin did induce chromosome aberrations in cultured human
fibroblasts.
Aspirin inhibits ovulation in rats.
Omeprazole
In two 24-month carcinogenicity studies in rats,
omeprazole at daily doses of 1.7, 3.4, 13.8, 44.0 and 140.8 mg/kg/day (about
0.35 to 34 times the human dose of 40 mg per day, based on body surface area)
produced gastric ECL cell carcinoids in a dose-related manner in both male and
female rats; the incidence of this effect was markedly higher in female rats,
which had higher blood levels of omeprazole. Gastric carcinoids seldom occur in
the untreated rat. In addition, ECL cell hyperplasia was present in all treated
groups of both sexes. In one of these studies, female rats were treated with
13.8 mg omeprazole/kg/day (about 3.4 times the human dose of 40 mg per day,
based on body surface area) for one year, then followed for an additional year
without the drug. No carcinoids were seen in these rats. An increased incidence
of treatment-related ECL cell hyperplasia was observed at the end of one year
(94% treated vs 10% controls). By the second year the difference between
treated and control rats was much smaller (46% vs 26%) but still showed more
hyperplasia in the treated group. Gastric adenocarcinoma was seen in one rat
(2%). No similar tumor was seen in male or female rats treated for two years.
For this strain of rat no similar tumor has been noted historically, but a
finding involving only one tumor is difficult to interpret. In a 52-week
toxicity study in Sprague-Dawley rats, brain astrocytomas were found in a small
number of males that received omeprazole at dose levels of 0.4, 2, and 16
mg/kg/day (about 0.1 to 3.2 times the human dose of 40 mg/day, based on body
surface area). No astrocytomas were observed in female rats in this study. In a
2-year carcinogenicity study in Sprague-Dawley rats, no astrocytomas were found
in males and females at the high dose of 140.8 mg/kg/day (about 34 times the
human dose of 40 mg per day, based on body surface area). A 78-week mouse
carcinogenicity study of omeprazole did not show increased tumor occurrence,
but the study was not conclusive. A 26week p53 (+/-) transgenic mouse
carcinogenicity study was not positive.
Omeprazole was positive for clastogenic effects in an in
vitro human lymphocyte chromosomal aberration assay, in one of two in vivo mouse
micronucleus tests, and in an in vivo bone marrow cell chromosomal aberration
assay. Omeprazole was negative in the in vitro Ames Salmonella typhimurium assay,
an in vitro mouse lymphoma cell forward mutation assay and an in vivo rat liver
DNA damage assay.
Omeprazole at oral doses up to 138 mg/kg/day (about 34
times the human dose of 40 mg per day, based on body surface area) was found to
have no effect on fertility and reproductive performance.
In 24-month carcinogenicity studies in rats, a
dose-related significant increase in gastric carcinoid tumors and ECL cell
hyperplasia was observed in both male and female animals. Carcinoid tumors have
also been observed in rats subjected to fundectomy or long-term treatment with
other proton pump inhibitors or high doses of H2-receptor antagonists.
Use In Specific Populations
Pregnancy
Risk Summary
Use of NSAIDs, including YOSPRALA, during the third
trimester of pregnancy increases the risk of premature closure of the fetal
ductus arteriosus. Avoid use of NSAIDs, including YOSPRALA, in pregnant women
starting at 30 weeks of gestation (third trimester). There are no available
data with YOSPRALA use in pregnant women to inform a drug-associate risk for
major birth defects and miscarriage; however, there are published studies with
each individual component of YOSPRALA.
Aspirin
Data from controlled and observational studies with
aspirin use during pregnancy have not reported a clear association with major
birth defects or miscarriage risk. However, NSAIDs, including aspirin, a
component of YOSPRALA, may increase the risk of complications during labor or
delivery and to the neonate [see Clinical Considerations And Data]. In
animal reproduction studies, there were adverse developmental effects with oral
administration of aspirin to pregnant rats at doses 15 to 19 times the maximum
recommended human dose (MRHD) of 325 mg/day. Aspirin did not produce adverse
developmental effects in rabbits [see Data].
Omeprazole
Data from epidemiological and observational studies with
omeprazole have not reported a clear association with major birth defects or
miscarriage risk. Animal reproduction studies in pregnant rats and rabbits
resulted in dose-dependent embryo-lethality at omeprazole doses that were
approximately 3.4 to 34 times an oral human dose of 40 mg.
Changes in bone morphology were observed in offspring of
rats dosed through most of pregnancy and lactation at doses equal to or greater
than approximately 34 times an oral human dose of 40 mg esomeprazole or 40 mg
omeprazole. When maternal administration was confined to gestation only, there
were no effects on bone physeal morphology in the offspring at any age [see Data].
The estimated background risks of major birth defects and
miscarriage for the indicated population are 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
Maternal aspirin use during the third trimester of
pregnancy may increase the risk of neonatal complications, including
necrotizing enterocolitis, patent ductus arteriosus, intracranial hemorrhage in
premature infants, low birth weight, stillbirth and neonatal death.
Maternal Adverse Reactions
An increased incidence of post-term pregnancy and longer
duration of pregnancy in women taking aspirin has been reported. Avoid maternal
use of aspirin, including Yosprala, in pregnant women during the third
trimester.
Labor Or Delivery
Aspirin, a component of YOSPRALA, should be avoided 1
week prior to and during labor and delivery because it can result in excessive
blood loss at delivery. In animal studies, NSAIDS, including aspirin, inhibit
prostaglandin synthesis, cause delayed parturition, and increase the incidence
of stillbirth.
Data
Human Data
Aspirin
Data from several controlled and observational studies
with aspirin use in the first or second trimesters of pregnancy have not
reported a clear association with major birth defects or miscarriage risk.
Published data on aspirin use during pregnancy has been mostly reported with low
dose aspirin (60 to 100 mg). There are limited data regarding aspirin 325 mg or
higher doses used during pregnancy.
A prospective, cohort study of 50,282 mother-child pairs
(the Collaborative Perinatal Project) assessing adverse outcomes by level of
aspirin exposure did not report aspirin-induced teratogenicity, altered
neonatal birth weight, or perinatal deaths at any exposure level. In a
controlled, randomized trial, maternal risks during pregnancy were reported as
low or absent, with no demonstrated increased risk of maternal bleeding or
placental abruptio. A multinational study involving more than 9,000 women,
CLASP (Collaborative Low-dose Aspirin Study in Pregnancy)], found that low-dose
aspirin reduced fetal morbidity in a select population of women with
early-onset preeclampsia, but did not identify adverse effects in the pregnant
woman, fetus, or newborn (followed to 12 and 18 months of age) in association
with the use of low-dose aspirin during pregnancy. In contrast, some
case-control studies reported associations between human congenital
malformations and aspirin use early in gestation, but these studies did not
report a consistent outcome attributable to drug use.
A report from EAGeR trial (Effects of Aspirin in
Gestation and Reproduction trial), which evaluated 1078 women who were
attempting to become pregnant and had prior miscarriages, reported use of
low-dose aspirin without adverse maternal or fetal effects except for vaginal
bleeding. Another trial of 3294 pregnant women of 14 to 20 weeks of gestation
treated with aspirin showed no effect in the mothers' incidence of
pre-eclampsia, hypertension, HELLP syndrome or placental abruptio, or in the
incidence of perinatal deaths or low birth weight below the 10th percentile.
The incidence of maternal side effects was higher in the aspirin group,
principally because of a significantly higher rate of hemorrhage.
Use of NSAIDs, including aspirin, during the third
trimester of pregnancy increases the risk of premature closure of the fetal
ductus arteriosus and use of high-dose aspirin for long periods in pregnancy
may also increase the risk of bleeding in the brain of premature infants.
Omeprazole
Four published epidemiological studies compared the
frequency of congenital abnormalities among infants born to women who used
omeprazole during pregnancy with the frequency of abnormalities among infants
of women exposed to H2-receptor antagonists or other controls.
A population-based retrospective cohort epidemiological
study from the Swedish Medical Birth Registry, covering approximately 99% of
pregnancies, from 1995 to 1999, reported on 955 infants (824 exposed during the
first trimester with 39 of these exposed beyond first trimester, and 131
exposed after the first trimester) whose mothers used omeprazole during
pregnancy. The number of infants exposed in utero to omeprazole that had any
malformation, low birth weight, low Apgar score, or hospitalization was similar
to the number observed in this population. The number of infants born with
ventricular septal defects and the number of stillborn infants was slightly
higher in the omeprazole-exposed infants than the expected number in this
population.
A population-based retrospective cohort study covering
all live births in Denmark from 1996 to 2009, reported on 1,800 live births
whose mothers used omeprazole during the first trimester of pregnancy and
837,317 live births whose mothers did not use any PPI. The overall rate of
birth defects in infants born to mothers with first trimester exposure to
omeprazole was 2.9% and 2.6% in infants born to mothers not exposed to any
proton pump inhibitor during the first trimester.
A retrospective cohort study reported on 689 pregnant
women exposed to either H2-blockers or omeprazole in the first trimester (134
exposed to omeprazole) and 1,572 pregnant women unexposed to either during the
first trimester. The overall malformation rate in offspring born to mothers
with first trimester exposure to omeprazole, an H2-blocker, or were unexposed
was 3.6%, 5.5%, and 4.1% respectively.
A small prospective observational cohort study followed
113 women exposed to omeprazole during pregnancy (89% with first trimester
exposures). The reported rate of major congenital malformations was 4% in the
omeprazole group, 2% in controls exposed to non-teratogens, and 2.8% in
disease-paired controls. Rates of spontaneous and elective abortions, preterm
deliveries, gestational age at delivery, and mean birth weight were similar
among the groups.
Several studies have reported no apparent adverse
short-term effects on the infant when single dose oral or intravenous
omeprazole was administered to over 200 pregnant women as premedication for
cesarean section under general anesthesia.
Animal Data
Aspirin
Aspirin produced a spectrum of developmental anomalies
when administered to Wistar rats as single, large doses (500 to 625 mg/kg) on
gestational day (GD) 9, 10, or 11. These doses (500 to 625 mg/kg) in rats are
about 15 to 19 times the maximum recommended human dose of aspirin (325 mg/day)
based on body surface area. Many of the anomalies were related to closure
defects and included craniorachischisis, gastroschisis and umbilical hernia,
and cleft lip, in addition to diaphragmatic hernia, heart malrotation, and
supernumerary ribs and kidneys. In contrast to the rat, aspirin was not
developmentally toxic in rabbits.
Omeprazole
Reproductive studies conducted with omeprazole in rats at
oral doses up to 138 mg/kg/day (about 34 times an oral human dose of 40 mg on a
body surface area basis) and in rabbits at doses up to 69.1 mg/kg/day (about 34
times an oral human dose of 40 mg on a body surface area basis) during
organogenesis did not disclose any evidence for a teratogenic potential of
omeprazole. In rabbits, omeprazole in a dose range of 6.9 to 69.1 mg/kg/day
(about 3.4 to 34 times an oral human dose of 40 mg on a body surface area basis)
administered during organogenesis produced dose-related increases in
embryo-lethality, fetal resorptions, and pregnancy disruptions. In rats,
dose-related embryo/fetal toxicity and postnatal developmental toxicity were
observed in offspring resulting from parents treated with omeprazole at 13.8 to
138 mg/kg/day (about 3.4 to 34 times an oral human doses of 40 mg on a body
surface area basis), administered prior to mating through the lactation period.
Esomeprazole
The data described below was generated from studies using
esomeprazole, an enantiomer of omeprazole. The animal to human dose multiples
are based on the assumption of equal systemic exposure to esomeprazole in
humans following oral administration of either 40 mg esomeprazole or 40 mg
omeprazole.
No effects on embryo-fetal development were observed in
reproduction studies with esomeprazole magnesium in rats at oral doses up to
280 mg/kg/day (about 68 times an oral human dose of 40 mg on a body surface
area basis) or in rabbits at oral doses up to 86 mg/kg/day (about 42 times an
oral human dose of 40 mg esomeprazole or 40 mg omeprazole on a body surface
area basis) administered during organogenesis.
A pre-and postnatal developmental toxicity study in rats
with additional endpoints to evaluate bone development was performed with
esomeprazole magnesium at oral doses of 14 to 280 mg/kg/day (about 3.4 to 68
times an oral human dose of 40 mg esomeprazole or 40 mg omeprazole on a body
surface area basis). Neonatal/early postnatal (birth to weaning) survival was
decreased at doses equal to or greater than 138 mg/kg/day (about 34 times an
oral human dose of 40 mg esomeprazole or 40 mg omeprazole on a body surface
area basis). Body weight and body weight gain were reduced and neurobehavioral
or general developmental delays in the immediate post-weaning timeframe were
evident at doses equal to or greater than 69 mg/kg/day (about 17 times an oral
human dose of 40 mg esomeprazole or 40 mg omeprazole on a body surface area
basis). In addition, decreased femur length, width and thickness of cortical
bone, decreased thickness of the tibial growth plate and minimal to mild bone
marrow hypocellularity were noted at doses equal to or greater than 14
mg/kg/day (about 3.4 times an oral human dose of 40 mg esomeprazole or 40 mg
omeprazole on a body surface area basis).
Physeal dysplasia in the femur was observed in offspring
of rats treated with oral doses of esomeprazole magnesium at doses equal to or
greater than 138 mg/kg/day (about 34 times an oral human dose of 40 mg
esomeprazole or 40 mg omeprazole on a body surface area basis).
Effects on maternal bone were observed in pregnant and
lactating rats in the pre-and postnatal toxicity study when esomeprazole
magnesium was administered at oral doses of 14 to 280 mg/kg/day (about 3.4 to
68 times an oral human dose of 40 mg esomeprazole or 40 mg omeprazole on a body
surface area basis). When rats were dosed from gestational day 7 through
weaning on postnatal day 21, a statistically significant decrease in maternal
femur weight of up to 14% (as compared to placebo treatment) was observed at
doses equal to or greater than 138 mg/kg/day (about 34 times an oral human dose
of 40 mg esomeprazole or 40 mg omeprazole on a body surface area basis).
A pre-and postnatal development study in rats with
esomeprazole strontium (using equimolar doses compared to esomeprazole
magnesium study) produced similar results in dams and pups as described above.
A follow up developmental toxicity study in rats with
further time points to evaluate pup bone development from postnatal day 2 to
adulthood was performed with esomeprazole magnesium at oral doses of 280
mg/kg/day (about 68 times an oral human dose of 40 mg on a body surface area
basis) where esomeprazole administration was from either gestational day 7 or
gestational day 16 until parturition. When maternal administration was confined
to gestation only, there were no effects on bone physeal morphology in the
offspring at any age.
Lactation
Risk Summary
There is no information about the presence of YOSPRALA in
human milk; however, the individual components of YOSPRALA, aspirin and
omeprazole, are present in human milk. Limited data from clinical lactation
studies in published literature describe the presence of aspirin in human milk
at relative infant doses of 2.5% to 10.8% of the maternal weight-adjusted
dosage. Case reports of breastfeeding infants whose mothers were exposed to
aspirin during lactation describe adverse reactions, including metabolic
acidosis, thrombocytopenia, and hemolysis. There is no information on the
effects of aspirin on milk production. Limited data from a case report in
published literature describes the presence of omeprazole in human milk at a
relative infant dose of 0.9% of the maternal weight-adjusted dosage. There are
no reports of adverse effects of omeprazole on the breastfed infant, and no
information on the effects of omeprazole on milk production. Because of the
potential for serious adverse reactions, including the potential for aspirin to
cause metabolic acidosis, thrombocytopenia, hemolysis or Reye's syndrome,
advise patients that breastfeeding is not recommended during treatment with
YOSPRALA.
Clinical Considerations
It is not known if maternal exposure to aspirin during
lactation increases the risk of Reye's syndrome in breastfed infants. The
direct use of aspirin in infants and children is associated with Reye's
syndrome, even at low plasma levels.
Females And Males Of Reproductive Potential
Infertility
Females
Based on the mechanism of action, the use of
prostaglandin-mediated NSAIDs, including YOSPRALA, may delay or prevent rupture
of ovarian follicles, which has been associated with reversible infertility in
some women. Published animal studies have shown that administration of
prostaglandin synthesis inhibitors has the potential to disrupt
prostaglandin-mediated follicular rupture required for ovulation. Small studies
in women treated with NSAIDs have also demonstrated a reversible delay in
ovulation. Consider withdrawal of NSAIDs, including YOSPRALA, in women who have
difficulties conceiving or who are undergoing investigation of infertility.
Pediatric Use
The safety and efficacy of YOSPRALA has not been
established in pediatric patients. YOSPRALA is contraindicated in pediatric
patients with suspected viral infections, with or without fever, because of the
risk of Reye's syndrome with concomitant use of aspirin in certain viral
illnesses [see CONTRAINDICATIONS].
Juvenile Animal Data
In a juvenile rat toxicity study, esomeprazole was
administered with both magnesium and strontium salts at oral doses about 17 to
67 times a daily human dose of 40 mg based on body surface area. Increases in
death were seen at the high dose, and at all doses of esomeprazole, there were
decreases in body weight, body weight gain, femur weight and femur length, and
decreases in overall growth [see Nonclinical Toxicology].
Geriatric Use
Of the total number of patients who received YOSPRALA
(n=900) in clinical trials, 62% were ≥65 years of age and 15% were 75
years and over. No overall differences in safety or effectiveness were observed
between these subjects and younger subjects and other reported clinical
experience with aspirin and omeprazole has not identified differences in
responses between the elderly and younger patients, but greater sensitivity of
some older individuals cannot be ruled out [see CLINICAL PHARMACOLOGY].
Renal Impairment
No dose reduction of YOSPRALA is necessary in patients
with mild to moderate renal impairment. Avoid YOSPRALA in patients with severe
renal impairment (glomerular filtration rate less than 10 mL/minute) due to the
aspirin component [see WARNINGS AND PRECAUTIONS, CLINICAL
PHARMACOLOGY].
Hepatic Impairment
Long-term moderate to high doses of aspirin may result in
elevations in serum ALT levels [see WARNINGS AND PRECAUTIONS]. Systemic
exposure to omeprazole is increased in patients with hepatic impairment [see CLINICAL
PHARMACOLOGY]. Avoid YOSPRALA in patients with any degree of hepatic
impairment.
Asian Population
In studies of healthy subjects, Asians had approximately
a four-fold higher exposure to omeprazole than Caucasians. CYP2C19, a polymorphic
enzyme, is involved in the metabolism of omeprazole. Approximately 15% to 20%
of Asians are CYP2C19 poor metabolizers. Tests are available to identify a
patient's CYP2C19 genotype. Avoid use in Asian patients with unknown CYP2C19
genotype or those who are known to be poor metabolizers [see CLINICAL
PHARMACOLOGY].