Yosprala (Page 2 of 9)

5.10 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 long-term 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 (6.2)].

5.11 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.

5.12 Hepatic Impairment

Long-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 (12.3)]. Avoid YOSPRALA in patients with any degree of hepatic impairment [see Use in Specific Populations (8.7)].

5.13 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.

5.14 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 (6.2)].

5.15 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 (7)].

5.16 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 (7) and Clinical Pharmacology (12.2)].

5.17 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 (7)].

5.18 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 (8.1)].

5.19 Abnormal Laboratory Tests

Aspirin has been associated with elevated hepatic enzymes, blood urea nitrogen and serum creatinine, hyperkalemia, proteinuria, and prolonged bleeding time.

5.20 Fundic Gland Polyps

PPI use is associated with an increased risk of fundic gland polyps that increases with long-term use, especially beyond one year. Most PPI users who developed fundic gland polyps were asymptomatic and fundic gland polyps were identified incidentally on endoscopy. Use the shortest duration of PPI therapy appropriate to the condition being treated.

6 ADVERSE REACTIONS

6.1 Clinical Studies 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 practice.

YOSPRALA 325 mg/40 mg was studied primarily in two randomized, double-blind controlled clinical trials (n=524) of 6 months duration. Table 1 lists adverse reactions that occurred in >2% of patients in the YOSPRALA arm and were more common than in the control arm, consisting of 325 mg of enteric coated (EC)-aspirin.

Table 1: Most Common Adverse Reactions in Study 1 and Study 2*
Preferred Term YOSPRALA325 mg/40 mg once daily(n=521)% EC-Aspirin325 mg once daily(n=524)%
*
Adverse reactions occurring in ≥2% of YOSPRALA-treated patients and more common than in the control arm
Gastritis 18 16
Nausea 3 2
Diarrhea 3 2
Gastric polyps 2 1
Non-cardiac chest pain 2 1

In Study 1 and Study 2 combined, 7% of patients taking YOSPRALA discontinued due to adverse reactions compared to 11% of patients taking EC-aspirin alone. The most common reasons for discontinuations due to adverse reactions in the YOSPRALA treatment group were upper abdominal pain (<1%, n=2), diarrhea (<1%, n=2) and dyspepsia (<1%, n=2).

Less Common Adverse Reactions

In YOSPRALA-treated patients in the clinical trials there were 2 patients with upper GI bleeding (gastric or duodenal) and 2 patients with lower GI bleeding (hematochezia and large intestinal hemorrhage) and one additional patient experienced obstruction in the small bowel.

See also the full prescribing information of aspirin and omeprazole products for additional adverse reactions.

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