ngenla
somatrogon-ghla · by pfizer ireland pharmaceuticals
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Overview
Somatrogon-ghla, a human growth hormone analog, is a fusion protein produced in Chinese Hamster Ovary (CHO) cells by recombinant DNA technology. It is comprised of the amino acid sequence of human growth hormone (hGH) with one copy of the C-terminal peptide (CTP) from the beta chain of human chorionic gonadotropin (hCG) at the N-terminus and 2 copies of CTP (in tandem) at the C-terminus. Somatrogon-ghla has an approximate molecular weight of 40 KDa. NGENLA (somatrogon-ghla) injection is a sterile, clear and colorless to slightly light yellow solution for subcutaneous use supplied in a 24 mg/1.2 mL (20 mg/mL) or 60 mg/1.2 mL (50 mg/mL) single-patient-use prefilled pen. Each 1.2 mL of solution contains either 24 mg or 60 mg of somatrogon-ghla, and the inactive ingredients citric acid monohydrate (0.3 mg), histidine (1.9 mg), metacresol (4 mg, as a preservative), poloxamer 188 (2 mg), sodium chloride (10 mg) and sodium citrate (2.8 mg) in water for injection. NGENLA has a pH of approximately 6.6.
How to use
2 DOSAGE AND ADMINISTRATION • NGENLA treatment should be supervised by a healthcare provider who is experienced in the diagnosis and management of pediatric patients with growth hormone deficiency ( 2.1 ). • Administer NGENLA by subcutaneous injection once weekly, on the same day each week, at any time of the day in the abdomen, thighs, buttocks, or upper arms with weekly rotation of injection site ( 2.1 ). • The recommended dosage is 0.66 mg/kg based on actual body weight administered once weekly ( 2.3 ). • Individualize dosage for each patient based on the growth response ( 2.3 ). • Patients switching from daily growth hormone may initiate treatment with once-weekly NGENLA on the day following their last daily injection ( 2.3 ). • If more than one injection is required to deliver a complete dose, each injection should be administered at a different injection site ( 2.3 ). 2.1 Important Dosing and Administration Information • NGENLA treatment should be supervised by a healthcare provider who is experienced in the diagnosis and management of pediatric patients aged 3 years and older with growth failure due to growth hormone deficiency (GHD) [see Indications and Usage (1) ] . • Refer patient to the Instructions for Use for complete administration instructions. • Administer NGENLA by subcutaneous injection, once weekly, on the same day each week, at any time of the day in the…
Side effects
The following clinically significant adverse reactions are described elsewhere in the labeling: • Increased mortality in patients with acute critical illness [see Warnings and Precautions (5.1) ] • Severe hypersensitivity [see Warnings and Precautions (5.2) ] • Increased risk of neoplasm [see Warnings and Precautions (5.3) ] • Glucose intolerance and diabetes mellitus [see Warnings and Precautions (5.4) ] • Intracranial hypertension [see Warnings and Precautions (5.5) ] • Fluid retention [see Warnings and Precautions (5.6) ] • Hypoadrenalism [see Warnings and Precautions (5.7) ] • Hypothyroidism [see Warnings and Precautions (5.8) ] • Slipped capital femoral epiphysis [see Warnings and Precautions (5.9) ] • Progression of preexisting scoliosis [see Warnings and Precautions (5.10) ] • Pancreatitis [see Warnings and Precautions (5.11) ] • Lipoatrophy [see Warnings and Precautions (5.12) ] • Sudden death in pediatric patients with Prader-Willi syndrome [ see Warnings and Precautions (5.13) ] Adverse reactions reported in ≥5% of patients treated with NGENLA are: injection site reactions, nasopharyngitis, headache, pyrexia, anemia, cough, vomiting, hypothyroidism, abdominal pain, rash, and oropharyngeal pain ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because…
Warnings
Important safety information
5 WARNINGS AND PRECAUTIONS • Severe Hypersensitivity : Severe hypersensitivity reactions may occur. In the event of an allergic reaction, seek prompt medical attention ( 5.2 ). • Increased Risk of Neoplasms : Monitor patients with preexisting tumors for progression or recurrence. Increased risk of a second neoplasm in childhood cancer survivors treated with somatropin – in particular meningiomas in patients treated with radiation to the head for their first neoplasm ( 5.3 ). • Glucose Intolerance and Diabetes Mellitus : NGENLA may decrease insulin sensitivity, particularly at higher doses. Monitor glucose levels periodically in all patients receiving NGENLA, especially in patients with existing diabetes mellitus or at risk for its development ( 5.4 ). • Intracranial Hypertension : Perform fundoscopic examinations prior to initiation of treatment with NGENLA and periodically thereafter. If preexisting papilledema is identified, evaluate the etiology and treat the underlying cause before initiating. If papilledema occurs with NGENLA, stop treatment ( 5.5 ). • Fluid Retention: May occur and may be dose dependent. Reduce dose as necessary ( 5.6 ). • Hypoadrenalism: Monitor patients for reduced serum cortisol levels and/or need for glucocorticoid dose increases in those with known hypoadrenalism ( 5.7 ). • Hypothyroidism : Monitor thyroid function periodically as hypothyroidism may…
Interactions
Table 2 includes a list of drugs with clinically significant drug interactions when administered concomitantly with NGENLA and instructions for preventing or managing them. Table 2 Clinically Significant Drug Interactions with NGENLA Replacement Glucocorticoid Treatment Clinical Impact: Microsomal enzyme 11β-hydroxysteroid dehydrogenase type 1 (11βHSD-1) is required for conversion of cortisone to its active metabolite, cortisol, in hepatic and adipose tissue. Growth hormone inhibits 11βHSD-1. Consequently, individuals with untreated GH deficiency have relative increases in 11βHSD-1 and serum cortisol. Initiation of NGENLA may result in inhibition of 11βHSD-1 and reduced serum cortisol concentrations. Intervention: Patients treated with glucocorticoid replacement for hypoadrenalism may require an increase in their maintenance or stress doses following initiation of NGENLA [see Warnings and Precautions (5.7) ] . Examples: Cortisone acetate and prednisone may be affected more than others because conversion of these drugs to their biologically active metabolites is dependent on the activity of 11βHSD-1. Supraphysiologic Glucocorticoid Treatment Clinical Impact: Supraphysiologic glucocorticoid treatment may attenuate the growth-promoting effects of NGENLA in pediatric patients. Intervention: Carefully adjust glucocorticoid replacement dosing in pediatric patients receiving…
May treat
Dosage forms
INJECTABLE
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Frequently asked questions
- What is Ngenla?
- Somatrogon-ghla, a human growth hormone analog, is a fusion protein produced in Chinese Hamster Ovary (CHO) cells by recombinant DNA technology. It is comprised of the amino acid sequence of human growth hormone (hGH) with one copy of the C-terminal peptide (CTP) from the beta chain of human chorionic gonadotropin (hCG) at the N-terminus and 2 copies of CTP (in tandem) at the C-terminus. Somatrogon-ghla has an approximate molecular weight of 40 KDa. NGENLA (somatrogon-ghla) injection is a sterile, clear and colorless to slightly light yellow solution for subcutaneous use supplied in a 24 mg/1.2 mL (20 mg/mL) or 60 mg/1.2 mL (50 mg/mL) single-patient-use prefilled pen. Each 1.2 mL of solution contains either 24 mg or 60 mg of somatrogon-ghla, and the inactive ingredients citric acid monohydrate (0.3 mg), histidine (1.9 mg), metacresol (4 mg, as a preservative), poloxamer 188 (2 mg), sodium chloride (10 mg) and sodium citrate (2.8 mg) in water for injection. NGENLA has a pH of approximately 6.6.
- What does Ngenla treat?
- Ngenla (Somatrogon-Ghla) is indicated for growth disorders, per its drug-label indications. This is general reference, not medical advice.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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