Clinical drug
1.5 ML leuprolide acetate 15 MG/ML Prefilled Syringe
15 MG/ML · Prefilled Syringe · injection
A form of leuprolide →
1.5 ML leuprolide acetate 15 MG/ML Prefilled Syringe — Gonadotropin releasing hormone analogues. INDICATIONS AND USAGE LUPRON DEPOT 11.25 mg is a gonadotropin-releasing hormone (GnRH) agonist indicated for: Endometriosis Management of endometriosi

Active ingredient
Classification
Gonadotropin releasing hormone analoguesGonadotropin Releasing Hormone Receptor Agonist
Real-world adverse events (FAERS)
Hot Flush9,557Intercepted Product Preparation Error9,058Death8,366Syringe Issue7,884Device Leakage6,123Wrong Technique in Product Usage Process5,336Fatigue5,128Injection Site Pain4,869
Indications
INDICATIONS AND USAGE LUPRON DEPOT 11.25 mg is a gonadotropin-releasing hormone (GnRH) agonist indicated for: Endometriosis Management of endometriosis, including pain relief and reduction of endometriotic lesions. ( 1.1 ) In combination with a norethindrone acetate for initial management of the painful symptoms of endometriosis and for management of recurrence of symptoms. ( 1.1 ) Limitations of Use: The total duration of therapy with LUPRON DEPOT 11.25 mg plus add-back therapy should not exceed 12 months due to concerns about adverse impact on bone mineral density. ( 1.1 , 2.1 , 5.1 ) Uterine Leiomyomata (Fibroids) Concomitant use with iron therapy for preoperative hematologic improvement of women with anemia caused by fibroids for whom three months of hormonal suppression is deemed necessary. ( 1.2 ) Limitations of Use: LUPRON DEPOT 11.25 mg is not indicated for combination use with norethindrone acetate add-back therapy for the preoperative hematologic improvement of women with anemia caused by heavy menstrual bleeding due to fibroids. ( 1.2 ) 1.1 Endometriosis Monotherapy LUPRON DEPOT 11.25 mg is indicated for management of endometriosis, including pain relief and reduction of endometriotic lesions. In Combination with Norethindrone Acetate LUPRON DEPOT 11.25 mg in combination with norethindrone acetate is indicated for initial management of the painful symptoms of endometriosis and for management of recurrence of symptoms. Use of norethindrone acetate in combination with LUPRON DEPOT 11.25 mg is referred to as add-back therapy, and is intended to reduce the loss of bone mineral density (BMD) and reduce vasomotor symptoms associated with use of LUPRON DEPOT 11.25 mg. Limitations of Use : The total duration of therapy with LUPRON DEPOT 11.25 mg plus add-back therapy should not exceed 12 months due to concerns about adverse impact on bone mineral density [see Dosage and Administration ( 2.1 ) and Warnings and Precautions ( 5.1 ) ] . 1.2 Uterine Leiomyomata (Fibroids) LUPRON DEPOT 11.25 mg, used concomitantly with iron therapy, is indicated for the preoperative hematologic improvement of women with anemia caused by fibroids for whom three months of hormonal suppression is deemed necessary. Consider a one-month trial period on iron alone, as some women will respond to iron alone [see Clinical Studies ( 14.2 )]. LUPRON DEPOT 11.25 mg may be added if the response to iron alone is considered inadequate. Limitations of Use : LUPRON DEPOT 11.25 mg is not indicated for combination use with norethindrone acetate add-back therapy for the preoperative hematologic improvement of women with anemia caused by heavy menstrual bleeding due to fibroids [see Dosage and Administration ( 2.1 )].
Dosage
DOSAGE AND ADMINISTRATION Must be administered by a healthcare provider. ( 2.1 ) The dose of FENSOLVI is 45 mg administered by subcutaneous injection once every six months. ( 2.1 ) Monitor response to FENSOLVI with a GnRH agonist stimulation test, basal serum luteinizing hormone (LH) levels or serum concentration of sex steroid levels at 1 to 2 months following initiation of therapy and as needed to confirm adequate suppression of pituitary gonadotropins, sex steroids, and progression of secondary sexual characteristics. ( 2.2 ) Measure height every 3 to 6 months and monitor bone age periodically. ( 2.2 ) See Full Prescribing Information for reconstitution and administration instructions. ( 2.3 , 2.4 ) 2.1 Dosing Information FENSOLVI must be administered by a healthcare provider. The dose of FENSOLVI is 45 mg administered by subcutaneous injection once every six months. Discontinue FENSOLVI treatment at the appropriate age of onset of puberty. 2.2 Monitoring Monitor response to FENSOLVI with a GnRH agonist stimulation test, basal serum luteinizing hormone (LH) levels or serum concentration of sex steroid levels at 1 to 2 months following initiation of therapy and as needed to confirm adequate suppression of pituitary gonadotropins, sex steroids, and progression of secondary sexual characteristics. Measure height (for calculation of growth velocity) every 3 to 6 months and monitor bone age periodically. Noncompliance with drug regimen or inadequate dosing may lead to gonadotropins and/or sex steroids increasing above prepubertal levels resulting in inadequate control of the pubertal process. If the dose of FENSOLVI is not adequate, switching to an alternative GnRH agonist for the treatment of CPP with the ability for dose adjustment may be necessary. 2.3 Reconstitution Instructions Use aseptic technique including gloves for reconstitution and administration. Allow the product to reach room temperature before reconstitution to allow for easier administration. Once reconstituted, the concentration is 45 mg/0.375 mL. Administer the product within 30 minutes or discard. FENSOLVI is packaged in a carton containing: Tray containing pre-connected syringe system and desiccant pack Prescribing information Sterile safety needle and cap (located under the tray in carton) Follow the detailed instructions below to ensure correct preparation of FENSOLVI prior to administration: Step 1 On a clean field open the tray by tearing off the foil from the corner and remove the contents. Discard the desiccant pack. Remove the pre-connected syringe system from the tray. Open the sterile safety needle package by peeling back the paper tab. Note: Syringe A and Syringe B should not be lined-up yet. The product should only be administered with the co-packaged, sterile safety needle. Step 2 Grasp the latching button on the coupling device with your finger and thumb and press until you hear a snapping sound. The two syringes will be aligned. Do not bend the pre-connected syringe system. Step 3 Holding the syringes in a horizontal position, transfer the liquid contents of Syringe A into the leuprolide acetate powder contained in Syringe B. Thoroughly mix the product for 60 cycles by pushing the contents back and forth between both syringes to obtain a uniform suspension. A cycle is one push of the Syringe A plunger and one push of the Syringe B plunger. When thoroughly mixed, the suspension will appear colorless to pale yellow. Note: Product must be mixed as described; shaking will NOT provide adequate mixing. Do not bend. Step 4 After mixing, hold the syringes vertically (upright) with Syringe B (wide syringe) on the bottom. The syringes should remain securely coupled. Transfer all of the mixed product into Syringe B by depressing the Syringe A plunger and slightly withdrawing the Syringe B plunger. Step 5 While ensuring the Syringe A plunger is fully pushed down, hold the coupling device and unscrew Syringe B. This will disconnect Syringe B from the coupling device. Syringe A will remain attached to the coupling device. Note: Small air bubbles will remain in the formulation – this is acceptable. Do not purge the air bubbles from Syringe B as product may be lost! Step 6 Continue to hold Syringe B upright with the open end at the top. Hold back the white plunger on Syringe B to prevent loss of the product, and attach the safety needle and cap (the safety needle is located under the tray). Gently screw clockwise with approximately a three-quarter turn until the safety needle and cap are secure. Do not overtighten, as the needle hub may become damaged which could result in leakage of the product during injection. The safety shield may also be damaged if the safety needle and cap are screwed with too much force. Step 7 Move the safety shield away from the needle and towards the syringe. Pull off the cap immediately prior to administration. Note: Should the needle hub appear to be damaged, or leak, do not use the product. If the needle hub is damaged or leakage is observed, use a new FENSOLVI carton. admin step2 step3 step4 step5 step6 step7 2.4 Administration Instructions 1. Select an injection site on the abdomen, upper buttocks, or another location with adequate amounts of subcutaneous tissue that does not have excessive pigment, nodules, lesions, or hair and hasn’t recently been used. 2. Cleanse the injection-site area with an alcohol swab (not enclosed). 3. Using the thumb and forefinger, grab and bunch the area of skin around the injection site. 4. Using your dominant hand, insert the needle quickly at a 90° angle to the skin surface. The depth of penetration will depend on the amount and fullness of the subcutaneous tissue and the length of the needle. After the needle is inserted, release the skin. 5. Inject the drug using a slow, steady push and press down on the plunger until the syringe is empty. Make sure all the drug has been injected before removing the needle. 6. Withdraw the needle quickly at the same 90° angle used for insertion. 7. Immediately following the withdrawal of the needle, activate the safety shield using a finger/thumb or flat surface and push until it completely covers the needle tip and locks into place. 8. An audible and tactile “click” verifies a locked position. 9. Check to confirm the safety shield is fully engaged. Discard all components safely in an appropriate biohazard container. admin admin step7
Warnings
WARNINGS AND PRECAUTIONS Tumor Flare: Transient increase in serum levels of testosterone during treatment may result in worsening of symptoms or onset of new signs and symptoms during the first few weeks of treatment, including bone pain, neuropathy, hematuria, bladder outlet obstruction, ureteral obstruction, or spinal cord compression. Monitor patients at risk closely and manage as appropriate. ( 5.1 , 5.7 ) Hyperglycemia and diabetes: Hyperglycemia and an increased risk of developing diabetes have been reported in men receiving GnRH analogs. Monitor blood glucose level and manage according to current clinical practice. ( 5.2 ) Cardiovascular diseases: Increased risk of myocardial infarction, sudden cardiac death and stroke has been reported in men. Monitor for cardiovascular disease and manage according to current clinical practice. ( 5.3 ) Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. Consider risks and benefits. ( 5.4 ) Convulsions have been observed in patients with or without a history of predisposing factors. Manage convulsions according to the current clinical practice. (5.5) Severe Cutaneous Adverse Reactions (SCARs), including Stevens-Johnson syndrome/toxic epidermal necrolysis, occurred in patients treated with VABRINTY. Interrupt VABRINTY if signs or symptoms of SCARs develop. Permanently discontinue if SCARs are confirmed. ( 5.6 ) Embryo-Fetal Toxicity: May cause fetal harm. ( 5.8 , 8.1 ) 5.1 Tumor Flare VABRINTY 7.5 mg, 22.5 mg, and 30 mg like other GnRH agonists, causes a transient increase in serum concentrations of testosterone during the first week of treatment. VABRINTY 45 mg causes a transient increase in serum concentrations of testosterone during the first two weeks of treatment. Patients may experience worsening of symptoms or onset of new signs and symptoms during the first few weeks of treatment, including bone pain, neuropathy, hematuria, or bladder outlet obstruction. Cases of ureteral obstruction and/or spinal cord compression, which may contribute to paralysis with or without fatal complications, have been observed in the treatment of advanced prostate cancer using GnRH agonists. Patients with metastatic vertebral lesions and/or with urinary tract obstruction should be closely observed during the first few weeks of therapy. If spinal cord compression or ureteral obstruction develops, standard treatment of these complications should be instituted. 5.2 Hyperglycemia and Diabetes Hyperglycemia and an increased risk of developing diabetes have been reported in men receiving GnRH agonists. Hyperglycemia may represent development of diabetes mellitus or worsening of glycemic control in patients with diabetes. Monitor blood glucose and/or glycosylated hemoglobin (HbA1c) periodically in patients receiving a GnRH agonist and manage with current practice for treatment of hyperglycemia or diabetes. 5.3 Cardiovascular Diseases Increased risk of developing myocardial infarction, sudden cardiac death and stroke has been reported in association with use of GnRH agonists in men. The risk appears low based on the reported odds ratios, and should be evaluated carefully along with cardiovascular risk factors when determining a treatment for patients with prostate cancer. Patients receiving a GnRH agonist should be monitored for symptoms and signs suggestive of development of cardiovascular disease and be managed according to current clinical practice. 5.4 Effect on QT/QTc Interval Androgen deprivation therapy may prolong the QT/QTc interval. Providers should consider whether the benefits of androgen deprivation therapy outweigh the potential risks in patients with congenital long QT syndrome, congestive heart failure, frequent electrolyte abnormalities, and in patients taking drugs known to prolong the QT interval. Electrolyte abnormalities should be corrected. Consider periodic monitoring of electrocardiograms and electrolytes. 5.5 Convulsions Postmarketing reports of convulsions have been observed in patients on leuprolide acetate therapy. These included patients with a history of seizures, epilepsy, cerebrovascular disorders, central nervous system anomalies or tumors, and in patients on concomitant medications that have been associated with convulsions such as bupropion and SSRIs. Convulsions have also been reported in patients in the absence of any of the conditions mentioned above. Patients receiving a GnRH agonist who experience convulsion should be managed according to current clinical practice. 5.6 Severe Cutaneous Adverse Reactions Severe cutaneous adverse reactions (SCARs), including Steve-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), and erythema multiforme, occurred in patients receiving VABRINTY [see Adverse Reactions ( 6.2 )] . Monitor patients for the development of SCARs. Advise patients of the signs and symptoms of SCARs (e.g., a prodrome of fever, flu-like symptoms, mucosal lesions, progressive skin rash, or lymphadenopathy). If a SCAR is suspected, interrupt VABRINTY until the etiology of the reaction has been determined. Consultation with a dermatologist is recommended. If a SCAR is confirmed, or for other grade 4 skin reactions, permanently discontinue VABRINTY. 5.7 Laboratory Tests Monitor VABRINTY response by periodic measurement of serum concentrations of testosterone and prostate specific antigen. In the majority of patients, testosterone levels increased above Baseline during the first week, declining thereafter to Baseline levels or below by the end of the second or third week. Castrate levels were generally reached within two to four weeks. Castrate testosterone levels were maintained for the duration of the treatment with VABRINTY 7.5 mg. No increases to above the castrate level occurred in any of the patients. Castrate levels were generally maintained for the duration of treatment with VABRINTY 22.5 mg. Once castrate levels were achieved with VABRINTY 30 mg, most (86/89) patients remained suppressed throughout the study. Once castrate levels were achieved with VABRINTY 45 mg, one patient (< 1%) experienced a breakthrough, with testosterone levels > 50 ng/dL. Results of testosterone determinations are dependent on assay methodology. It is advisable to be aware of the type and precision of the assay methodology to make appropriate clinical and therapeutic decisions. Drug/Laboratory Test Interactions: Therapy with VABRINTY results in suppression of the pituitary-gonadal system. Results of diagnostic tests of pituitary gonadotropic and gonadal functions conducted during and after VABRINTY therapy may be affected. 5.8 Embryo-Fetal Toxicity Based on findings in animal studies and mechanism of action, VABRINTY may cause fetal harm when administered to a pregnant woman. In animal developmental and reproductive studies, major fetal abnormalities were observed after administration of leuprolide acetate throughout gestation in rats. Advise pregnant patients and females of reproductive potential of the potential risk to the fetus [see Use in Specific Populations (8.1), Clinical Pharmacology ( 12.1 )] .
Contraindications
CONTRAINDICATIONS LUPRON DEPOT 11.25 mg is contraindicated in women with the following: Hypersensitivity to gonadotropin-releasing hormone (GnRH), GnRH agonist analogs, including leuprolide acetate, or any of the excipients in LUPRON DEPOT 11.25 mg [see Warnings and Precautions ( 5.4 ) and Adverse Reactions ( 6.2 ) ] Undiagnosed abnormal uterine bleeding Pregnancy [see Warnings and Precautions ( 5.2 ) and Use in Specific Populations ( 8.1 ) ] When norethindrone acetate is administered with LUPRON DEPOT 11.25 mg, the contraindications to the use of norethindrone acetate also apply to this combination regimen. Refer to the norethindrone acetate prescribing information for a list of contraindications for norethindrone acetate. Hypersensitivity to GnRH, GnRH agonist analogs, including leuprolide acetate, or any of the excipients in LUPRON DEPOT 11.25 mg. ( 4 , 5.4 ) Undiagnosed abnormal uterine bleeding. ( 4 ) Pregnancy. ( 4 , 8.1 ) If LUPRON DEPOT 11.25 mg is administered with norethindrone acetate, the contraindications for norethindrone acetate also apply. ( 4 )
Mechanism of action
CLINICAL PHARMACOLOGY Leuprolide acetate, a GnRH agonist, acts as an inhibitor of gonadotropin secretion. Animal studies indicate that following an initial stimulation, continuous administration of leuprolide acetate results in suppression of ovarian and testicular steroidogenesis. This effect was reversible upon discontinuation of drug therapy. Administration of leuprolide acetate has resulted in inhibition of the growth of certain hormone dependent tumors (prostatic tumors in Noble and Dunning male rats and DMBA-induced mammary tumors in female rats) as well as atrophy of the reproductive organs. In humans, subcutaneous administration of single daily doses of leuprolide acetate results in an initial increase in circulating levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH), leading to a transient increase in levels of the gonadal steroids (testosterone and dihydrotestosterone in males, and estrone and estradiol in pre-menopausal females). However, continuous daily administration of leuprolide acetate results in decreased levels of LH and FSH. In males, testosterone is reduced to castrate levels. In pre-menopausal females, estrogens are reduced to post-menopausal levels. These decreases occur within two to four weeks after initiation of treatment, and castrate levels of testosterone in prostatic cancer patients have been demonstrated for periods of up to five years. Leuprolide acetate is not active when given orally. Pharmacokinetics Absorption Bioavailability by subcutaneous administration is comparable to that by intravenous administration. Distribution The mean steady-state volume of distribution of leuprolide following intravenous bolus administration to healthy male volunteers was 27 L. In vitro binding to human plasma proteins ranged from 43% to 49%. Metabolism In healthy male volunteers, a 1 mg bolus of leuprolide administered intravenously revealed that the mean systemic clearance was 7.6 L/h, with a terminal elimination half-life of approximately 3 hours based on a two compartment model. In rats and dogs, administration of 14 C-labeled leuprolide was shown to be metabolized to smaller inactive peptides, a pentapeptide (Metabolite I), tripeptides (Metabolites II and III) and a dipeptide (Metabolite IV). These fragments may be further catabolized. The major metabolite (M-I) plasma concentrations measured in 5 prostate cancer patients reached maximum concentration 2 to 6 hours after dosing and were approximately 6% of the peak parent drug concentration. One week after dosing, mean plasma M-I concentrations were approximately 20% of mean leuprolide concentrations. Excretion Following administration of leuprolide acetate for depot suspension, 3.75 mg to 3 patients, less than 5% of the dose was recovered as parent and M-I metabolite in the urine. Special Populations The pharmacokinetics of the drug in hepatically and renally impaired patients has not been determined. Drug Interactions No pharmacokinetic-based drug-drug interaction studies have been conducted with leuprolide acetate. However, because leuprolide acetate is a peptide that is primarily degraded by peptidase and not by cytochrome P-450 enzymes as noted in specific studies, and the drug is only about 46% bound to plasma proteins, drug interactions would not be expected to occur. CLINICAL STUDIES In a controlled study comparing leuprolide acetate injection 1 mg/day given subcutaneously to DES (diethylstilbestrol), 3 mg/day, the survival rate for the two groups was comparable after two years of treatment. The objective response to treatment was also similar for the two groups.
Source: RxNorm + openFDA + RxClass + FAERS · 2026
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