Genotropin

Important Safety Information

Somatropin should not be used for growth promotion in pediatric patients with closed epiphyses.

Somatropin is contraindicated in patients with active proliferative or severe nonproliferative diabetic retinopathy.

Somatropin is contraindicated in patients with active malignancy. Because growth hormone deficiency may be a sign of pituitary or other brain tumors, the presence of such tumors should be ruled out before treatment is initiated. Somatropin should not be used in patients with any evidence of progression or recurrence of an underlying intracranial tumor.

Somatropin in pharmacologic doses should not be used to treat patients with acute critical illness due to complications from open heart surgery, abdominal surgery or multiple accidental traumas, or those patients with acute respiratory failure due to an increased mortality. The safety of continuing replacement somatropin treatment for approved uses in patients who develop these illnesses has not been established.

Somatropin is contraindicated in patients with Prader-Willi syndrome who are severely obese or have respiratory impairment.

GENOTROPIN is contraindicated in patients with a known hypersensitivity to somatropin or any of its excipients. Serious systemic hypersensitivity reactions including anaphylactic reactions and angioedema have been reported with postmarketing use of somatropin products. Patients and caregivers should be informed that such reactions are possible and that prompt medical attention should be sought if an allergic reaction occurs.

New-onset Type-2 diabetes mellitus has been reported. Monitor patients with glucose intolerance closely; dosage of antihyperglycemic drug may need to be adjusted. Monitor carefully if somatropin is administered in combination with glucocorticoid therapy and/or other drugs metabolized by the CP450 pathway.

In childhood cancer survivors, an increased risk of a second neoplasm, in particular meningiomas, has been reported in patients treated with somatropin after their first neoplasm, particularly those who were treated with cranial radiation. Children with certain rare genetic causes of short stature have an increased risk of developing malignancies. Practitioners should thoroughly consider the risks and benefits of starting somatropin in these patients and if treatment is initiated, should carefully monitor these patients for development of neoplasms. Patients should be monitored carefully for any malignant transformation of skin lesions.

Intracranial hypertension (IH) has been reported in a small number of patients treated with somatropin. If papilledema is observed during somatropin treatment, treatment should be stopped and reassessed. Patients with Turner syndrome and Prader-Willi syndrome may be at increased risk for the development of IH.

Undiagnosed/untreated hypothyroidism may prevent an optimal response to somatropin, in particular, the growth response in children. Patients with Turner syndrome have an inherently increased risk of developing autoimmune thyroid disease and primary hypothyroidism. In patients with growth hormone deficiency, central (secondary) hypothyroidism may first become evident or worsen during somatropin treatment. Therefore, patients treated with somatropin should have periodic thyroid function tests, and thyroid hormone replacement therapy should be initiated or appropriately adjusted when indicated.

Patients treated with somatropin who have or are at risk for pituitary hormone deficiency(s) may be at risk for reduced serum cortisol levels and/or unmasking central hypoadrenalism and should be monitored for reduced serum cortisol levels. In addition, patients treated with glucocorticoid replacement for pre-existing hypoadrenalism may require an increase in their maintenance or stress doses following initiation of somatropin treatment and should be monitored for reduced cortisol levels and/or need for glucocorticoid dose increases.

Progression of scoliosis can occur in patients who experience rapid growth. Patients with scoliosis should be monitored for manifestation or progression during somatropin therapy.

Slipped capital femoral epiphyses may occur more frequently in patients with endocrine disorders (including GHD and Turner syndrome) or in patients undergoing rapid growth. Any pediatric patient with the onset of a limp or complaints of hip or knee pain during somatropin therapy should be carefully evaluated.

Somatropin should be used during pregnancy only if clearly needed and with caution in nursing mothers because it is not known whether somatropin is excreted in human milk.

Subcutaneous injection of somatropin at the same site repeatedly may result in tissue atrophy. This can be avoided by rotating the injection site.

Cases of pancreatitis have been reported rarely in children and adults receiving somatropin treatment, with some evidence supporting a greater risk in children compared with adults. Published literature indicates that girls who have Turner syndrome may be at greater risk than other somatropin-treated children. Pancreatitis should be considered in any somatropin-treated patient, especially a child, who develops persistent severe abdominal pain.

In clinical trials with GENOTROPIN in pediatric GHD patients, the following events were reported infrequently: injection site reactions, including pain or burning associated with the injection, fibrosis, nodules, rash, inflammation, pigmentation, or bleeding; lipoatrophy; headache; hematuria; hypothyroidism; and mild hyperglycemia.

In clinical studies of 273 pediatric patients born SGA treated with GENOTROPIN, the following clinically significant events were reported: mild transient hyperglycemia; 1 patient with benign intracranial hypertension; 2 patients with central precocious puberty; 2 patients with jaw prominence; and several patients with aggravation of preexisting scoliosis, injection site reactions, and self-limited progression of pigmented nevi. Anti-hGH antibodies were not detected in any of the patients treated with GENOTROPIN.

Deaths have been reported with the use of a growth hormone in pediatric PWS patients with severe obesity, history of upper airway obstruction or sleep apnea, and/or unidentified respiratory infection. Therefore, all patients with PWS should be evaluated and monitored for signs of upper airway obstruction, sleep apnea, and respiratory infections, and have effective weight control.

In clinical trials with GENOTROPIN in pediatric patients with PWS, the following drug-related events were reported: edema, aggressiveness, arthralgia, benign intracranial hypertension, hair loss, headache, and myalgia.

Somatropin may increase the occurrence of otitis media in Turner syndrome patients. In 2 clinical studies with GENOTROPIN in pediatric patients with Turner syndrome, the most frequently reported adverse events were respiratory illnesses (influenza, tonsillitis, otitis, sinusitis), joint pain, and urinary tract infection. The only treatment-related adverse event that occurred in more than 1 patient was joint pain.

In 2 clinical studies with GENOTROPIN in pediatric patients with ISS, the most commonly encountered adverse events included upper respiratory tract infections, influenza, tonsillitis, nasopharyngitis, gastroenteritis, headaches, increased appetite, pyrexia, fracture, altered mood, and arthralgia.

In clinical trials with GENOTROPIN in adults with GHD, the majority of side effects were symptoms of fluid retention, including peripheral swelling/edema, arthralgia, pain and stiffness of the extremities, myalgia, paresthesia, and hypoesthesia. Generally, these were transient and dose-dependent.

In women on oral estrogen replacement, a larger dose of somatropin may be required to achieve the defined treatment goal.

Elderly patients may be more sensitive to the action of somatropin, and therefore may be more prone to develop adverse reactions.

The cartridges of GENOTROPIN contain m-Cresol and should not be used by patients with a known sensitivity to this preservative.

Subcutaneous injection of somatropin at the same site repeatedly may result in tissue atrophy. This can be avoided by rotating the injection site.

Health care providers should supervise the first injection and provide appropriate training and instruction for the proper use of all devices for GENOTROPIN.

Rx only

Indications

Indicated for the treatment of pediatric patients who have growth failure due to an inadequate secretion of endogenous growth hormone (GH).

Indicated for the treatment of pediatric patients who have growth failure due to Prader-Willi syndrome (PWS). The diagnosis of PWS should be confirmed by appropriate genetic testing (see CONTRAINDICATIONS).

Indicated for the treatment of growth failure in children born small for gestational age (SGA) who fail to manifest catch-up growth by age 2 years.

Indicated for the treatment of growth failure associated with Turner syndrome (TS).

Indicated for the treatment of idiopathic short stature (ISS), also called non-growth hormone-deficient short stature, defined by height standard deviation score (SDS) ≤ -2.25, and associated with growth rates unlikely to permit attainment of adult height in the normal range, in pediatric patients whose epiphyses are not closed and for whom diagnostic evaluation excludes other causes associated with short stature that should be observed or treated by other means.

Indicated for growth hormone replacement therapy in adults with growth hormone deficiency (GHD) of either childhood- or adult-onset etiology. GHD should be confirmed as appropriate.

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