Leuprolide for Endometriosis

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 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 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 )] .

Drug Interactions See CLINICAL PHARMACOLOGY , Pharmacokinetics section. Drug/Laboratory Test Interactions Administration of leuprolide acetate in therapeutic doses results in suppression of the pituitary-gonadal system. Normal function is usually restored within 4 to 12 weeks after treatment is discontinued. Carcinogenesis, Mutagenesis, Impairment of Fertility Two-year carcinogenicity studies were conducted with leuprolide acetate in rats and mice. In rats, a dose-related increase of benign pituitary hyperplasia and benign pituitary adenomas was noted at 24 months when the drug was administered subcutaneously at high daily doses (0.6 to 4 mg/kg). There was a significant but not dose-related increase of pancreatic islet-cell adenomas in females and of testicular interstitial cell adenomas in males (highest incidence in the low dose group). In mice, no pituitary abnormalities were observed at a dose as high as 60 mg/kg for two years. Patients have been treated with leuprolide acetate for up to three years with doses as high as 10 mg/day and for two years with doses as high as 20 mg/day without demonstrable pituitary abnormalities. Mutagenicity studies have been performed with leuprolide acetate using bacterial and mammalian systems. These studies provided no evidence of a mutagenic potential. Leuprolide injection may reduce male and female fertility. Administration of leuprolide acetate to male and female rats at dose of 0.024, 0.24, and 2.4 mg/kg as monthly depot formulation for up to 3 months (approximately as low as 1/30 of the human dose based on body surface area using an estimated daily dose in animals and humans) caused atrophy of the reproductive organs, and suppression of reproductive function. These changes were reversible upon cessation of treatment.

ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Tumor Flare [see Warnings and Precautions ( 5.1 )] Hyperglycemia and Diabetes [see Warnings and Precautions ( 5.2 )] Cardiovascular Disease [see Warnings and Precautions ( 5.3 )] Effect on QT/QTc Interval [see Warnings and Precautions ( 5.4 )] Convulsions [see Warnings and Precautions ( 5.5 )] Severe Cutaneous Adverse Reactions [see Warnings and Precautions ( 5. 6 )] Most common adverse reactions in clinical studies (incidence ≥ 5%): Malaise, fatigue, hot flashes/sweats, and testicular atrophy. ( 6.1 ) As with other GnRH agonists, other adverse reactions, including decreased bone density and rare cases of pituitary apoplexy have been reported. ( 6.1 , 6.2 ) To report SUSPECTED ADVERSE REACTIONS, contact Uronova Pharmaceuticals, Inc. at 877-712-4575 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trial 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. The safety of all VABRINTY formulations was evaluated in clinical trials involving patients with advanced prostate cancer. In addition, the safety of VABRINTY 7.5 mg was evaluated in 8 surgically castrated males (Table 4). VABRINTY, like other GnRH analogs, caused a transient increase in serum testosterone concentrations during the first one to two weeks of treatment. Therefore, potential exacerbations of signs and symptoms of the disease during the first weeks of treatment are of concern in patients with vertebral metastases and/or urinary obstruction or hematuria. If these conditions are aggravated, it may lead to neurological problems such as weakness and/or paresthesia of the lower limbs or worsening of urinary symptoms [see Warnings and Precautions ( 5.7 )] . During the clinical trials, injection sites were closely monitored. Refer to Table 3 for a summary of reported injection site adverse reactions. Table 3. Reported Injection Site Adverse Reactions VABRINTY 7.5 mg 22.5 mg 30 mg 45 mg Study number AGL9904 AGL9909 AGL0001 AGL0205 Number of patients 120 117 90 111 Treatment 1 injection every month up to 6 months 1 injection every 3 months up to 6 months 1 injection every 4 months up to 8 months 1 injection every 6 months up to 12 months Number of injections 716 230 175 217 Transient burning/ stinging 248 (34.6%) injections; 84% reported as mild 50 (21.7%) injections; 86% reported as mild 35 (20%) injections; 100% reported as mild3 35 (16%) injections; 91.4% reported as mild Pain (generally brief and mild) 4.3% of injections (18.3% of patients) 3.5% of injections (6.0% of patients) 2.3% of injections2 (3.3% of patients) 4.6% of injections 4 Erythema (generally brief and mild) 2.6% of injections (12.5% of patients) 0.9% of injections 1 (1.7% of patients) 1.1% of injections (2.2% of patients) - Bruising (mild) 2.5% of injections (11.7% of patients) 1.7% of injections (3.4% of patients) - 2.3% of injections 5 Pruritus 1.4% of injections (9.2% of patients) 0.4% of injections (0.9% of patients) - - Induration 0.4% of injections (2.5% of patients) - - - Ulceration 0.1% of injections (> 0.8% of patients) - - - Erythema was reported following 2 injections of VABRINTY 22.5 mg. One report characterized the erythema as mild and it resolved within 7 days. The other report characterized the erythema as moderate and it resolved within 15 days. Neither patient experienced erythema at multiple injection times. A single reaction reported as moderate pain resolved within two minutes and all 3 mild pain reactions resolved within several days following injection of VABRINTY 30 mg. Following injection of VABRINTY 30 mg, three of the 35 burning/stinging reactions were reported as moderate. Transient pain was reported as mild in intensity in nine of ten (90%) events and moderate in intensity in one of ten (10%) events following injection of VABRINTY 45 mg. Mild bruising was reported following 5 (2.3%) study injections and moderate bruising was reported following 2 (<1%) study injections of VABRINTY 45 mg. These localized adverse reactions were non-recurrent over time. No patient discontinued therapy due to an injection site adverse reaction. The following possibly or probably related systemic adverse reactions occurred during clinical trials with VABRINTY, and were reported in > 2% of patients (Table 4). Reactions considered not drug-related are excluded. Table 4. Summary of Possible or Probably Related Systemic Adverse Reactions Reported by > 2% of Patients Treated with VABRINTY VABRINTY 7.5 mg 7.5 mg 22.5 mg 30 mg 45 mg Study number AGL9904 AGL9802 AGL9909 AGL0001 AGL0205 Number of patients 120 8 117 90 111 Treatment 1 injection every month up to 6 months 1 injection (surgically castrated patients) 1 injection every 3 months up to 6 months 1 injection every 4 months up to 8 months 1 injection every 6 months up to 12 months Body system Adverse Reaction Number (percent) Body as a whole Malaise and fatigue 21 (17.5%) - 7 (6.0%) 12 (13.3%) 13 (11.7%) Weakness - - - - 4 (3.6%) Nervous system Dizziness 4 (3.3%) - - 4 (4.4%) - Vascular Hot flashes/sweats 68 (56.7%) * 2 (25.0%)* 66 (56.4%) * 66 (73.3%) * 64 (57.7%)* Renal/urinary Urinary frequency - - 3 (2.6%) 2 (2.2%) - Nocturia - - - 2 (2.2%) - Gastrointestinal Nausea - - 4 (3.4%) 2 (2.2%) - Gastroenteritis/colitis 3 (2.5%) - - - - Skin Pruritus - - 3 (2.6%) - - Clamminess - - - 4 (4.4%) * - Night sweats - - - 3 (3.3%) * 3 (2.7%) * Alopecia - - - 2 (2.2%) - Musculoskeletal Arthralgia - - 4 (3.4%) - - Myalgia - - - 2 (2.2%) 5 (4.5%) Pain in limb - - - - 3 (2.7%) Reproductive Testicular atrophy 6 (5.0%)* - - 4 (4.4%)* 8 (7.2%) * Gynecomastia - - - 2 (2.2%)* 4 (3.6%) * Testicular pain - - - 2 (2.2%) - Psychiatric Decreased libido - - - 3 (3.3%) * - *Expected pharmacological consequences of testosterone suppression. In the patient populations studied with VABRINTY 7.5 mg, a total of 86 hot flashes/sweats adverse reactions were reported in 70 patients. Of these, 71 reactions (83%) were mild; 14 (16%) were moderate; 1 (1%) was severe. In the patient population studied with VABRINTY 22.5 mg, a total of 84 hot flashes/sweats adverse reactions were reported in 66 patients. Of these, 73 reactions (87%) were mild; 11 (13%) were moderate; none were severe. In the patient population studied with VABRINTY 30 mg, a total of 75 hot flash adverse reactions were reported in 66 patients. Of these, 57 reactions (76%) were mild; 16 (21%) were moderate; 2 (3%) were severe. In the patient population studied with VABRINTY 45 mg, a total of 89 hot flash adverse reactions were reported in 64 patients. Of these, 62 reactions (70%) were mild; 27 (30%) were moderate; none were severe. In addition, the following possibly or probably related systemic adverse reactions were reported by < 2% of the patients treated with VABRINTY in these clinical studies. Body system Adverse Reactions General Sweating, insomnia, syncope, rigors, weakness, lethargy Gastrointestinal Flatulence, constipation, dyspepsia Hematologic Decreased red blood cell count, hematocrit and hemoglobin Metabolic Weight gain Musculoskeletal Tremor, backache, joint pain, muscle atrophy, limb pain Nervous Disturbance of smell and taste, depression, vertigo Psychiatric Insomnia, depression, loss of libido* Renal/urinary Difficulties with urination, pain on urination, scanty urination, bladder spasm, blood in urine, urinary retention, urinary urgency, incontinence, nocturia, nocturia aggravated Reproductive/ Urogenital Testicular soreness/pain, impotence*, decreased libido*, gynecomastia*, breast soreness/tenderness*, testicular atrophy*, erectile dysfunction, penile disorder*, reduced penis size Skin Alopecia, clamminess, night sweats*, sweating increased* Vascular Hypertension, hypotension * Expec