openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.
Warnings sections page 1 of 1 · 1 matching rows.
warnings and cautions
5 WARNINGS AND PRECAUTIONS Osteosarcoma : Avoid use in patients with increased risk of osteosarcoma including patients with open epiphyses, metabolic bone diseases including Paget's disease, bone metastases or history of skeletal malignancies, prior external beam or implant radiation therapy involving the skeleton, and hereditary disorders predisposing to osteosarcoma. ( 5.1 ) Hypercalcemia and Cutaneous Calcification : Avoid in patients known to have an underlying hypercalcemic disorder. Discontinue in patients developing worsening of previously stable cutaneous calcification. ( 5.2 ) Risk of Urolithiasis : Consider the risk/benefit in patients with active or recent urolithiasis because of risk of exacerbation ( 5.3 ) Orthostatic Hypotension : Transient orthostatic hypotension may occur with initial doses of teriparatide injection ( 5.4 ) 5.1 Osteosarcoma An increase in the incidence of osteosarcoma (a malignant bone tumor) was observed in male and female rats treated with teriparatide. Osteosarcoma has been reported in patients treated with teriparatide in the post marketing setting; however, an increased risk of osteosarcoma has not been observed in observational studies in humans. There are limited data assessing the risk of osteosarcoma beyond 2 years of teriparatide use [see Dosage and Administration ( 2.3 ), Adverse Reactions ( 6.2 ), Nonclinical Toxicology ( 13.1 )] . Avoid teriparatide injection use in patients with (these patients are at increased baseline risk of osteosarcoma): Open epiphyses (pediatric and young adult patients) (teriparatide injection is not approved in pediatric patients) [see Use in Specific Populations ( 8.4 )] . Metabolic bone diseases other than osteoporosis, including Paget's disease of the bone. Bone metastases or a history of skeletal malignancies. Prior external beam or implant radiation therapy involving the skeleton. Hereditary disorders predisposing to osteosarcoma. 5.2 Hypercalcemia and Cutaneous Calcification Hypercalcemia Teriparatide has not been studied in patients with pre-existing hypercalcemia. Teriparatide may cause hypercalcemia and may exacerbate hypercalcemia in patients with pre-existing hypercalcemia [see Adverse Reactions ( 6.1 , 6.2 )] . Avoid teriparatide injection in patients known to have an underlying hypercalcemic disorder, such as primary hyperparathyroidism. Risk of Cutaneous Calcification Including Calciphylaxis Serious reports of calciphylaxis and worsening of previously stable cutaneous calcification have been reported in the post-marketing setting in patients taking teriparatide. Risk factors for development of calciphylaxis include underlying autoimmune disease, kidney failure, and concomitant warfarin or systemic corticosteroid use. Discontinue teriparatide injection in patients who develop calciphylaxis or worsening of previously stable cutaneous calcification. 5.3 Risk of Urolithiasis In clinical trials, the frequency of urolithiasis was similar in patients treated with teriparatide and patients treated with placebo. However, teriparatide has not been studied in patients with active urolithiasis. If teriparatide injection-treated patients have pre-existing hypercalciuria or suspected/known active urolithiasis, consider measuring urinary calcium excretion. Consider the risks and benefits of use in patients with active or recent urolithiasis because of the potential to exacerbate this condition. 5.4 Orthostatic Hypotension Teriparatide injection should be administered initially under circumstances in which the patient can sit or lie down if symptoms of orthostatic hypotension occur. In short-term clinical pharmacology studies of teriparatide in healthy volunteers, transient episodes of symptomatic orthostatic hypotension were observed in 5% of volunteers. Typically, these events began within 4 hours of dosing and resolved (without treatment) within a few minutes to a few hours. When transient orthostatic hypotension occurred, it happened within the first several doses, it was relieved by placing the person in a reclining position, and it did not preclude continued treatment. 5.5 Risk of Digoxin Toxicity Hypercalcemia may predispose patients to digitalis toxicity because teriparatide transiently increases serum calcium. Consider the potential onset of signs and symptoms of digitalis toxicity when teriparatide injection is used in patients receiving digoxin [see Drug Interactions ( 7.1 ), Clinical Pharmacology ( 12.3 )] .
6 ADVERSE REACTIONS Most common adverse reactions (>10%) include: arthralgia, pain, and nausea ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Alvogen, Inc. at 1-866-770-3024 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice. Men with Primary or Hypogonadal Osteoporosis and Postmenopausal Women with Osteoporosis The safety of teriparatide in the treatment of osteoporosis in men and postmenopausal women was assessed in two randomized, double-blind, placebo-controlled trials of 1382 patients (21% men, 79% women) aged 28 to 86 years (mean 67 years) [see Clinical Studies ( 14.1 , 14.2 )] . The median durations of the trials were 11 months for men and 19 months for women, with 691 patients exposed to teriparatide and 691 patients to placebo. All patients received 1000 mg of calcium plus at least 400 IU of vitamin D supplementation per day. The incidence of all-cause mortality was 1% in the teriparatide group and 1% in the placebo group. The incidence of serious adverse events was 16% in the teriparatide group and 19% in the placebo group. Early discontinuation due to adverse events occurred in 7% in the teriparatide group and 6% in the placebo group. Table 1 lists adverse events from these two trials that occurred in ≥2% of teriparatide-treated and more frequently than placebo-treated patients. Table 1. Percentage of Patients with Adverse Events Reported by at Least 2% of Teriparatide-Treated Patients and in More Teriparatide-Treated Patients than Placebo-Treated Patients from the Two Principal Osteoporosis Trials in Women and Men (Adverse Events are Shown Without Attribution of Causality) Teriparatide N=691 Placebo N=691 Event Classification (%) (%) Body as a Whole Pain 21.3 20.5 Headache 7.5 7.4 Asthenia 8.7 6.8 Neck pain 3.0 2.7 Cardiovascular Hypertension 7.1 6.8 Angina pectoris 2.5 1.6 Syncope 2.6 1.4 Digestive System Nausea 8.5 6.7 Constipation 5.4 4.5 Diarrhea 5.1 4.6 Dyspepsia 5.2 4.1 Vomiting 3.0 2.3 Gastrointestinal disorder 2.3 2.0 Tooth disorder 2.0 1.3 Musculoskeletal Arthralgia 10.1 8.4 Leg cramps 2.6 1.3 Nervous System Dizziness 8.0 5.4 Depression 4.1 2.7 Insomnia 4.3 3.6 Vertigo 3.8 2.7 Respiratory System Rhinitis 9.6 8.8 Cough increased 6.4 5.5 Pharyngitis 5.5 4.8 Dyspnea 3.6 2.6 Pneumonia 3.9 3.3 Skin and Appendages Rash 4.9 4.5 Sweating 2.2 1.7 Laboratory Findings Serum Calcium - Teriparatide transiently increased serum calcium, with the maximal effect observed at approximately 4 to 6 hours post-dose. Serum calcium measured at least 16 hours post-dose was not different from pretreatment levels. In clinical trials, the frequency of at least 1 episode of transient hypercalcemia in the 4 to 6 hours after teriparatide administration was 11% of women and 6% of men treated with teriparatide compared to 2% of women and 0% of the men treated with placebo. The percentage of patients treated with teriparatide whose transient hypercalcemia was verified on consecutive measurements was 3% of women and 1% of men. Urinary Calcium - Teriparatide increased urinary calcium excretion, but the frequency of hypercalciuria in clinical trials was similar for patients treated with teriparatide and placebo [see Clinical Pharmacology ( 12.2 )] . Serum Uric Acid - Teriparatide increased serum uric acid concentrations. In clinical trials, 3% of teriparatide-treated patients had serum uric acid concentrations above the upper limit of normal compared with 1% of placebo-treated patients. However, the hyperuricemia did not result in an increase in gout, arthralgia, or urolithiasis. Renal Function - No clinically important adverse renal effects were observed in clinical studies. Assessments included creatinine clearance; measurements of blood urea nitrogen (BUN), creatinine, and electrolytes in serum; urine specific gravity and pH; and examination of urine sediment. Men and Women with Glucocorticoid-Induced Osteoporosis The safety of teriparatide in the treatment of men and women with glucocorticoid-induced osteoporosis was assessed in a randomized, double-blind, active-controlled trial of 428 patients (19% men, 81% women) aged 22 to 89 years (mean 57 years) treated with ≥5 mg per day prednisone or equivalent for a minimum of 3 months [see Clinical Studies ( 14.3 )] . The duration of the trial was 18 months with 214 patients exposed to teriparatide and 214 patients exposed to an oral daily bisphosphonate (active control). All patients received 1000 mg of calcium plus 800 IU of vitamin D supplementation per day. There was no increase in mortality in the teriparatide group compared to the active control group. The incidence of serious adverse events was 21% in teriparatide patients and 18% in active control patients, and included pneumonia (3% teriparatide, 1% active control). Early discontinuation because of adverse events occurred in 15% of teriparatide patients and 12% of active control patients, and included dizziness (2% teriparatide, 0% active control). Adverse events reported at a higher incidence in the teriparatide group and with at least a 2% difference in teriparatide-treated patients compared with active control-treated patients were: nausea (14%, 7%), gastritis (7%, 3%), pneumonia (6%, 3%), dyspnea (6%, 3%), insomnia (5%, 1%), anxiety (4%, 1%), and herpes zoster (3%, 1%), respectively. 6.2 Postmarketing Experience Adverse Reactions from Postmarketing Spontaneous Reports The following adverse reactions have been identified during post-approval use of teriparatide. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Cases of bone tumor and osteosarcoma have been reported rarely in the postmarketing period [see Warnings and Precautions ( 5.1 )] . Hypercalcemia greater than 13 mg/dL has been reported with teriparatide use. Adverse events reported since market introduction that were temporally related to teriparatide therapy include the following: Allergic Reactions: Anaphylactic reactions, drug hypersensitivity, angioedema, urticaria Investigations: Hyperuricemia Respiratory System: Acute dyspnea, chest pain Musculoskeletal: Muscle spasms of the leg or back Other: Injection site reactions including injection site pain, swelling and bruising; oro-facial edema Adverse Reactions from Observational Studies to Assess Incidence of Osteosarcoma Two osteosarcoma surveillance safety studies (U.S. claims-based database studies) were designed to obtain data on the incidence rate of osteosarcoma among teriparatide-treated patients. In these two studies, three and zero osteosarcoma cases were identified among 379,283 and 153,316 teriparatide users, respectively. The study results suggest a similar risk for osteosarcoma between teriparatide users and their comparators. However, the interpretation of the study results calls for caution owing to the limitations of the data sources which do not allow for complete measurement and control for confounders.