Ropinirole

1 INDICATIONS AND USAGE Ropinirole tablets are a non-ergoline dopamine agonist indicated for the treatment of Parkinson’s disease (PD) and moderate-to-severe primary Restless Legs Syndrome (RLS). (1.1, 1.2) 1.1 Parkinson’s Disease Ropinirole tablets are indicated for the treatment of Parkinson’s disease. 1.2 Restless Legs Syndrome Ropinirole tablets are indicated for the treatment of moderate-to-severe primary Restless Legs Syndrome (RLS).

2 DOSAGE AND ADMINISTRATION Ropinirole tablets can be taken with or without food. (2.1) Retitration of ropinirole may be warranted if therapy is interrupted. (2.1) Parkinson’s Disease : The recommended starting dose is 0.25 mg taken three times daily; titrate to a maximum daily dose of 24 mg. (2.2) Renal Impairment: The maximum recommended dose is 18 mg/day in patients with end-stage renal disease on hemodialysis. (2.2) Restless Legs Syndrome: The recommended starting dose is 0.25 mg once daily, 1 to 3 hours before bedtime, titrate to a maximum recommended dose of 4 mg daily. (2.3) Renal Impairment: The maximum recommended dose is 3 mg/day in patients with end-stage renal disease on hemodialysis. (2.3) 2.1 General Dosing Recommendations Ropinirole can be taken with or without food [see Clinical Pharmacology (12.3)]. If a significant interruption in therapy with ropinirole has occurred, retitration of therapy may be warranted. 2.2 Dosing for Parkinson’s Disease The recommended starting dose of ropinirole for Parkinson's disease is 0.25 mg 3 times daily. Based on individual patient therapeutic response and tolerability, if necessary, the dose should then be titrated with weekly increments as described in Table 1. After Week 4, if necessary, the daily dose may be increased by 1.5 mg/day on a weekly basis up to a dose of 9 mg/day, and then by up to 3 mg/day weekly up to a maximum recommended total daily dose of 24 mg/day (8 mg 3 times daily). Doses greater than 24 mg/day have not been tested in clinical trials. Table 1. Ascending-Dose Schedule of Ropinirole for Parkinson's Disease Week Dosage Total Daily Dose 1 0.25 mg 3 times daily 0.75 mg 2 0.5 mg 3 times daily 1.5 mg 3 0.75 mg 3 times daily 2.25 mg 4 1 mg 3 times daily 3 mg Ropinirole should be discontinued gradually over a 7 day period in patients with Parkinson’s disease [ see Warnings and Precautions (5.8) ]. The frequency of administration should be reduced from 3 times daily to twice daily for 4 days. For the remaining 3 days, the frequency should be reduced to once daily prior to complete withdrawal of ropinirole. Renal Impairment No dose adjustment is necessary in patients with moderate renal impairment (creatinine clearance of 30 to 50 mL/min). The recommended initial dose of ropinirole for patients with end-stage renal disease on hemodialysis is 0.25 mg 3 times a day. Further dose escalations should be based on tolerability and need for efficacy. The recommended maximum total daily dose is 18 mg/day in patients receiving regular dialysis. Supplemental doses after dialysis are not required. The use of ropinirole in patients with severe renal impairment without regular dialysis has not been studied. 2.3 Dosing for Restless Legs Syndrome The recommended adult starting dose for RLS is 0.25 mg once daily 1 to 3 hours before bedtime. After 2 days, if necessary, the dose can be increased to 0.5 mg once daily, and to 1 mg once daily at the end of the first week of dosing, then as shown in Table 2 as needed to achieve efficacy. Titration should be based on individual patient therapeutic response and tolerability, up to a maximum recommended dose of 4 mg daily. For RLS, the safety and effectiveness of doses greater than 4 mg once daily have not been established. Table 2. Dose Titration Schedule of Ropinirole for Restless Legs Syndrome Day/Week Dose to be taken once daily 1 to 3 hours before bedtime Days 1 and 2 0.25 mg Days 3 to 7 0.5 mg Week 2 1 mg Week 3 1.5 mg Week 4 2 mg Week 5 2.5 mg Week 6 3 mg Week 7 4 mg When discontinuing ropinirole in patients with RLS, gradual reduction of the daily dose is recommended [see Warnings and Precautions (5.8, 5.9)]. Renal Impairment No dose adjustment is necessary in patients with moderate renal impairment (creatinine clearance of 30 to 50 mL/min). The recommended initial dose of ropinirole for patients with end-stage renal disease on hemodialysis is 0.25 mg once daily. Further dose escalations should be based on tolerability and need for …

5 WARNINGS AND PRECAUTIONS Sudden onset of sleep and somnolence may occur (5.1) Syncope may occur (5.2) Hypotension, including orthostatic hypotension may occur (5.3) May cause hallucinations and psychotic-like behaviors (5.4) May cause or exacerbate dyskinesia (5.5) May cause problems with impulse control or compulsive behaviors (5.6) 5.1 Falling Asleep during Activities of Daily Living and Somnolence Patients treated with ropinirole have reported falling asleep while engaged in activities of daily living, including driving or operating machinery, which sometimes resulted in accidents. Although many of these patients reported somnolence while on ropinirole, some perceived that they had no warning signs, such as excessive drowsiness, and believed that they were alert immediately prior to the event. Some have reported these events more than 1 year after initiation of treatment. In controlled clinical trials, somnolence was commonly reported in patients receiving ropinirole and was more frequent in Parkinson's disease (up to 40% ropinirole, 6% placebo) than in RLS (12% ropinirole, 6% placebo) [see Adverse Reactions (6.1)] . It has been reported that falling asleep while engaged in activities of daily living usually occurs in a setting of pre-existing somnolence, although patients may not give such a history. For this reason, prescribers should reassess patients for drowsiness or sleepiness, especially since some of the events occur well after the start of treatment. Prescribers should also be aware that patients may not acknowledge drowsiness or sleepiness until directly questioned about drowsiness or sleepiness during specific activities. Before initiating treatment with ropinirole, patients should be advised of the potential to develop drowsiness and specifically asked about factors that may increase the risk with ropinirole such as concomitant sedating medications or alcohol, the presence of sleep disorders (other than RLS), and concomitant medications that increase ropinirole plasma levels (e.g., ciprofloxacin) [see Drug Interactions (7.1)] . If a patient develops significant daytime sleepiness or episodes of falling asleep during activities that require active participation (e.g., driving a motor vehicle, conversations, eating), ropinirole should ordinarily be discontinued [see Dosage and Administration (2.2, 2.3)] . If a decision is made to continue ropinirole, patients should be advised to not drive and to avoid other potentially dangerous activities. There is insufficient information to establish that dose reduction will eliminate episodes of falling asleep while engaged in activities of daily living. 5.2 Syncope Syncope, sometimes associated with bradycardia, was observed in association with treatment with ropinirole in both patients with Parkinson’s disease and patients with RLS. In controlled clinical trials in patients with Parkinson’s disease, syncope was observed more frequently in patients receiving ropinirole than in patients receiving placebo (early Parkinson’s disease without levodopa [L-dopa]: ropinirole 12%, placebo 1%; advanced Parkinson’s disease: ropinirole 3%, placebo 2%). Syncope was reported in 1% of patients treated with ropinirole for RLS in 12 week, placebo-controlled clinical trials compared with 0.2% of patients treated with placebo [see Adverse Reactions (6.1)]. Most cases occurred more than 4 weeks after initiation of therapy with ropinirole, and were usually associated with a recent increase in dose. Because the trials conducted with ropinirole excluded patients with significant cardiovascular disease, patients with significant cardiovascular disease should be treated with caution. Approximately 4% of patients with Parkinson’s disease enrolled in Phase 1 trials had syncope following a 1 mg dose of ropinirole. In 2 trials in patients with RLS that used a forced-titration regimen and orthostatic challenge with intensive blood pressure monitoring, 2% of RLS patients treated with ropinirole compared…

4 CONTRAINDICATIONS Ropinirole is contraindicated in patients known to have a hypersensitivity/allergic reaction (including urticaria, angioedema, rash, pruritus) to ropinirole or to any of the excipients. History of hypersensitivity/allergic reaction (including urticaria, angioedema, rash, pruritus) to ropinirole or to any of the excipients

7 DRUG INTERACTIONS Inhibitors or inducers of CYP1A2: May alter the clearance of ropinirole; dose adjustment of ropinirole may be required. (7.1, 12.3) Hormone replacement therapy (HRT): Starting or stopping HRT may require dose adjustment of ropinirole. (7.2, 12.3) Dopamine antagonists (e.g., neuroleptics, metoclopramide): May reduce efficacy of ropinirole. (7.3) 7.1 Cytochrome P450 1A2 Inhibitors and Inducers In vitro metabolism studies showed that cytochrome P450 1A2 (CYP1A2) is the major enzyme responsible for the metabolism of ropinirole. There is thus the potential for inducers or inhibitors of this enzyme to alter the clearance of ropinirole. Therefore, if therapy with a drug known to be a potent inducer or inhibitor of CYP1A2 is stopped or started during treatment with ropinirole, adjustment of the dose of ropinirole may be required. Coadministration of ciprofloxacin, an inhibitor of CYP1A2, increases the AUC and C max of ropinirole [see Clinical Pharmacology (12.3)] . Cigarette smoking is expected to increase the clearance of ropinirole since CYP1A2 is known to be induced by smoking [see Clinical Pharmacology (12.3)] . 7.2 Estrogens Population pharmacokinetic analysis revealed that higher doses of estrogens (usually associated with hormone replacement therapy) reduced the clearance of ropinirole. Starting or stopping hormone replacement therapy may require adjustment of dosage of ropinirole [ see Clinical Pharmacology (12.3) ]. 7.3 Dopamine Antagonists Because ropinirole is a dopamine agonist, it is possible that dopamine antagonists such as neuroleptics (e.g., phenothiazines, butyrophenones, thioxanthenes) or metoclopramide may reduce the efficacy of ropinirole.

6 ADVERSE REACTIONS The following adverse reactions are described in more detail in other sections of the label: • Hypersensitivity [ see Contraindications (4) ] • Falling asleep during activities of daily living and somnolence [ see Warnings and Precautions (5.1) ] • Syncope [ see Warnings and Precautions (5.2) ] • Hypotension/orthostatic hypotension [ see Warnings and Precautions (5.3) ] • Hallucinations/psychotic-like behavior [ see Warnings and Precautions (5.4) ] • Dyskinesia [ see Warnings and Precautions (5.5) ] • Impulse control/compulsive behaviors [ see Warnings and Precautions (5.6) ] • Withdrawal-emergent hyperpyrexia and confusion [ see Warnings and Precautions (5.7) ] • Withdrawal Symptoms [ see Warnings and Precautions (5.8) ] • Augmentation and early-morning rebound in RLS [ see Warnings and Precautions (5.9) ] • Fibrotic complications [ see Warnings and Precautions (5.10) ] • Retinal pathology [ see Warnings and Precautions (5.11) ] Most common adverse reactions (incidence with ropinirole at least 5% greater than placebo) in the respective indications were: Early PD: Nausea, somnolence, dizziness, syncope, asthenic condition, viral infection, leg edema, vomiting, and dyspepsia. (6.1) Advanced PD: Dyskinesia, somnolence, nausea, dizziness, confusion, hallucinations, sweating, and headache. (6.1) RLS: Nausea, vomiting, somnolence, dizziness, and asthenic condition. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Bionpharma Inc. at 1-888-235-BION or 1-888-235-2466 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials 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 with rates in the clinical trials of another drug (or of another development program of a different formulation of the same drug) and may not reflect the rates observed in practice. Parkinson's Disease During the premarketing development of ropinirole, patients received ropinirole either without L-dopa (early Parkinson's disease trials) or as concomitant therapy with L-dopa (advanced Parkinson's disease trials). Because these 2 populations may have differential risks for various adverse reactions, this section will in general present adverse reaction data for these 2 populations separately. Early Parkinson's Disease (without L-dopa): In the double-blind, placebo-controlled trials in patients with early-stage Parkinson's disease, the most commonly observed adverse reactions in patients treated with ropinirole (incidence at least 5% greater than placebo) were nausea, somnolence, dizziness, syncope, asthenic condition (i.e., asthenia, fatigue, and/or malaise), viral infection, leg edema, vomiting, and dyspepsia. Approximately 24% of patients treated with ropinirole who participated in the double-blind, placebo-controlled early Parkinson's disease (without L-dopa) trials discontinued treatment due to adverse reactions compared with 13% of patients who received placebo. The most common adverse reactions in patients treated with ropinirole (incidence at least 2% greater than placebo) of sufficient severity to cause discontinuation were nausea and dizziness. Table 3 lists treatment-emergent adverse reactions that occurred in at least 2% of patients with early Parkinson's disease (without L-dopa) treated with ropinirole participating in the double-blind, placebo-controlled trials and were numerically more common than the incidence for placebo-treated patients. In these trials, either ropinirole or placebo was used as early therapy (i.e., without L-dopa). Table 3. Treatment-Emergent Adverse Reaction Incidence in Double-blind, Placebo-Controlled Early Parkinson's Disease (without L-dopa) Trials (Events ≥2% of Patients Treated with Ropinirole and Numerically More Frequent than the Placebo Group) a Body System/Adverse Reaction Ropinirole (n = 157) (%) Placebo (n = 147) (% Autonomic nervous system Flushing Dry mouth Incr…