DRUGS & SUPPLEMENTS
INDICATIONS AND USAGE
Apokyn (apomorphine hydrochloride injection) is indicated for the acute, intermittent treatment of hypomobility, “off” episodes (“end-of-dose wearing off” and unpredictable “on/off” episodes) associated with advanced Parkinson’s disease. Apokyn has been studied as an adjunct to other medications.
Based on reports of profound hypotension and loss of consciousness when apomorphine was administered with ondansetron, the concomitant use of apomorphine with drugs of the 5HT 3 antagonist class (including, for example, ondansetron, granisetron, dolasetron, palonosetron, and alosetron) is contraindicated.
Apokyn is contraindicated in patients who have demonstrated hypersensitivity to the drug or its ingredients (notably sodium metabisulfite).
Avoid Intravenous Administration:
Serious adverse events have followed the intravenous administration of apomorphine. Consequently, apomorphine should not be administered intravenously.
The significant adverse events described below have been reported in association with the use of subcutaneous apomorphine, but almost all of them occurred during open-label, uncontrolled studies. In the development program, the controlled trial data involved relatively few patients, and examined primarily the effects of single doses. Because the background rate of many of these events in a population of patients with advanced Parkinson’s disease is unknown, it is difficult to assess the role of apomorphine in their causation.
Nausea and Vomiting:
At the recommended doses of apomorphine, severe nausea and vomiting can be expected. Because of this, in domestic clinical studies, 98% of all patients were treated with the antiemetic trimethobenzamide for three days prior to beginning apomorphine and were then encouraged to continue trimethobenzamide for at least 6 weeks. Among 522 patients treated, 262 discontinued trimethobenzamide while continuing apomorphine. The average time to discontinuation of trimethobenzamide was about 2 months (range: 1 day to 33 months). For the 262 patients who discontinued trimethobenzamide, 249 patients continued apomorphine without trimethobenzamide for a duration of follow-up that averaged 1 year (range: 0-3 years). Even with the use of trimethobenzamide in clinical trials, 31% of the patients experienced nausea and 11% of the patients experienced vomiting. In clinical trials, 3% of the patients discontinued apomorphine due to nausea and 2% discontinued due to vomiting.
In the domestic development of apomorphine, there was no experience with antiemetics other than trimethobenzamide. Some antiemetics with anti-dopaminergic actions have the potential to worsen the clinical state of patients with Parkinson’s disease and should be avoided.
In clinical studies, about 2% of patients experienced syncope.
QT Prolongation and Potential for Proarrhythymic Effects:
In a study in which patients received increasing single doses of apomorphine from 2 to 10 mg as well as placebo, the mean difference in QTc between apomorphine and placebo, as measured by Holter monitor, was 0 msec at 4 mg, 1 msec at 6 mg, and 7 msec at 8 mg. Too few patients received a 10 mg dose to be able to adequately characterize the change in QTc interval at that dose. In a controlled trial in which patients were administered placebo or a single dose of apomorphine (mean dose of 5.2 mg; range of 2-10 mg, with 30 of 35 patients receiving a dose of 6 mg or less), the mean difference between apomorphine and placebo in the change in QTc was about 3 msec at 20 and 90 minutes. In the entire database, 2 patients (one at 2 and 6 mg, one at 6 mg) exhibited large QTc increments (> 60 msecs from pre-dose) and had QTc intervals greater than 500 msecs acutely after dosing. Doses of 6 mg or less thus are associated with minimal increases in QTc. Doses greater than 6 mg do not provide additional clinical benefit and are not recommended.
Some drugs that prolong the QT/QTc interval have been associated with the occurrence of torsades de pointes and with sudden unexplained death. The relationship of QT prolongation to torsades de pointes is clearest for larger increases (20 msec and greater), but it is possible that smaller QT/QTc prolongations may also increase risk, or increase it in susceptible individuals, such as those with hypokalemia, hypomagnesemia, bradycardia, concomitant use of other drugs that prolong the QTc interval, or genetic predisposition (e.g., congenital prolongation of the QT interval). Although torsades de pointes has not been observed in association with the use of apomorphine at recommended doses in premarketing studies, experience is too limited to rule out an increased risk. Palpitations and syncope may signal the occurrence of an episode of torsades de pointes.
Caution is recommended when administering apomorphine to patients with the risk factors described above.
Dopamine agonists may cause orthostatic hypotension at any time, especially during dose escalation. Parkinson’s disease patients, in addition, may have an impaired capacity to respond to an orthostatic challenge. For these reasons, Parkinson’s disease patients being treated with dopaminergic agonists ordinarily require careful monitoring for signs and symptoms of orthostatic hypotension, especially during dose escalation, and should be informed of this risk.
Apomorphine causes dose-related decreases in systolic (SBP) and diastolic blood pressure (DBP). Dose-dependent mean decrements in SBP ranged from 5 mmHg after 2 mg to 16 mmHg after 10 mg. Dose-dependent mean decrements in DBP ranged from 3 mmHg after 2 mg to 8 mmHg after 10 mg. These changes were observed at 10 minutes, appeared to peak at about 20 minutes after dosing, and persisted up to at least 90 minutes post-dosing. Patients undergoing titration of apomorphine showed an increased incidence (from 4% pre-dose to 18% post-dose) of systolic orthostatic hypotension (≥ 20 mmHg decrease) when evaluated at various times after in-office dosing. A small number of patients developed severe systolic orthostatic hypotension (≥ 30 mmHg decrease and systolic BP ≤ 90 mmHg) after subcutaneous apomorphine injection.
In clinical trials of apomorphine in patients with advanced Parkinson’s disease, 59 of 550 patients (11%) had orthostatic hypotension, hypotension, and/or syncope. These events were considered serious in 4 patients (< 1%) and resulted in withdrawal of apomorphine in 10 patients (2%). These events occurred both with initial dosing and during long-term treatment. Whether or not hypotension contributed to other significant adverse events seen (e.g., falls), is unknown.
The effects of apomorphine on blood pressure may be increased by the concomitant use of alcohol, antihypertensive medications, and vasodilators (especially nitrates). Alcohol should be avoided when using Apokyn and extra caution should be exercised if Apokyn must be administered with concomitant antihypertensive medications and/or vasodilators.
Patients with Parkinson’s disease are at risk of falling due to the underlying postural instability and concomitant autonomic instability seen in some patients with PD, and from syncope caused by the blood pressure lowering effects of the drugs used to treat PD. Subcutaneous apomorphine might increase the risk of falling by simultaneously lowering blood pressure and altering mobility.
In clinical trials, 30% of patients had events that could reasonably be considered falls and about 5% of patients had falls that were considered serious. Because these data were obtained in open, uncontrolled studies, and given the unknown background rate of falls in a population of patients with advanced Parkinson’s disease, it is impossible to definitively assess the contribution of apomorphine to these events.
Hallucinations / Psychotic-Like Behavior:
During clinical development, hallucinations were reported by 14% of the patients. In one randomized, double-blind, placebo-controlled study, hallucinations or confusion occurred in 10 % of patients treated with Apokyn and 0 % of patients treated with placebo. Hallucinations resulted in discontinuation of apomorphine in 1% of patients.
Post marketing reports indicate that patients may experience new or worsening mental status and behavioral changes, which may be severe, including psychotic-like behavior after starting or increasing the dose of Apokyn. Other drugs prescribed to improve the symptoms of Parkinson's disease can have similar effects on thinking and behavior. This abnormal thinking and behavior can consist of one or more of a variety of manifestations, including paranoid ideation, delusions, hallucinations, confusion, disorientation, aggressive behavior, agitation, and delirium.
Patients with a major psychotic disorder should ordinarily not be treated with Apokyn because of the risk of exacerbating psychosis. In addition, certain medications used to treat psychosis may exacerbate the symptoms of Parkinson's disease and may decrease the effectiveness of Apokyn.
Falling Asleep During Activities of Daily Living:
There have been reports in the literature of patients treated with apomorphine subcutaneous injections who suddenly fell asleep without prior warning of sleepiness while engaged in activities of daily living. It is clear that somnolence is commonly associated with Apokyn and many clinical experts believe that falling asleep while engaged in activities of daily living always occurs in a setting of pre-existing somnolence even if patients do not give such a history. Prescribers should therefore continually 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 Apokyn, patients should be advised of the possibility that they may develop drowsiness and specifically asked about factors that could increase the risk with Apokyn, such as concomitant sedating medications and the presence of sleep disorders. If a patient develops significant daytime sleepiness or episodes of falling asleep during activities that require active participation, Apokyn should ordinarily be discontinued. If a decision is made to continue Apokyn, patients should be advised not to drive and to avoid other potentially dangerous activities. There is insufficient information to determine whether dose reduction will eliminate episodes of falling asleep while engaged in activities of daily living.
During clinical development, 4% of patients treated with apomorphine experienced angina, myocardial infarction, cardiac arrest and/or sudden death; some cases of angina and myocardial infarction occurred in close proximity to apomorphine dosing (within 2 hours), while other cases of cardiac arrest and sudden death were observed at times unrelated to dosing. Apomorphine has been shown to reduce resting systolic and diastolic blood pressure and, as such, it has the potential to exacerbate coronary (and cerebral) ischemia. Extra caution should be used in prescribing apomorphine for patients with known cardiovascular and cerebrovascular disease. If patients develop signs and symptoms of coronary or cerebral ischemia, the continued use of apomorphine should be carefully re-evaluated.
Apokyn contains sodium metabisulfite, a sulfite that may cause allergic-type reactions, including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is seen more frequently in asthmatic than in non-asthmatic people.
Injection Site Reactions:
Among the 550 patients treated with apomorphine subcutaneous injections during development, 26% of patients complained of injection site reactions, including bruising, granuloma (4%), and pruritus (2%). There was a limited experience (both for overall numbers of patients as well as the total number of injections per patient) with apomorphine injections in controlled trials. In this limited controlled experience, the number of injection site reactions reported by patients receiving apomorphine was similar to that reported by patients receiving placebo.
Potential for Abuse:
There are rare reports of apomorphine abuse by patients with Parkinson’s disease in other countries. These cases are characterized by increasingly frequent dosing leading to hallucinations, dyskinesia, and abnormal behavior. Psychosexual stimulation with increased libido is believed to underlie these cases. Prescribers should be vigilant for evidence that patients are abusing apomorphine, such as use out of proportion to motor signs.
Apomorphine may cause dyskinesia or exacerbate pre-existing dyskinesia. During clinical development, dyskinesia or worsening of dyskinesia was reported in 24% of patients. Overall, 2% of patients withdrew from studies due to dyskinesias.
Events Reported with Dopaminergic Therapy:
Although the events enumerated below have not been reported in association with the use of apomorphine, they are associated with the use of other dopaminergic drugs.
Withdrawal-emergent Hyperpyrexia and Confusion: Although not reported with apomorphine, a symptom complex resembling the neuroleptic malignant syndrome, with no other obvious etiology, has been reported in association with rapid dose reduction, withdrawal of, or changes in antiparkinsonian therapy.
Fibrotic Complications: Cases of retroperitoneal fibrosis, pulmonary infiltrates, pleural effusion, pleural thickening, and cardiac valvulopathy have been reported in some patients treated with ergot-derived dopaminergic agents. While these complications may resolve when the drug is discontinued, complete resolution does not always occur. Although these adverse events are believed to be related to the ergoline structure of these compounds, whether other, nonergot derived dopamine agonists can cause them is unknown.
Melanoma: Epidemiological studies have shown that patients with Parkinson’s disease have a higher risk (2- to approximately 6-fold higher) of developing melanoma than the general population. Whether the increased risk observed was due to Parkinson’s disease or other factors, such as drugs used to treat Parkinson’s disease, is unclear.
For the reasons stated above, patients and providers are advised to monitor for melanomas frequently and on a regular basis when using Apokyn for any indication. Ideally, periodic skin examinations should be performed by appropriately qualified individuals (e.g., dermatologists).
Apomorphine may cause prolonged painful erections in some patients. During clinical development, painful erections were reported by 3 of 361 males (< 1%), and one patient withdrew from apomorphine therapy because of priapism. Although no patients in the clinical development program required surgical intervention, severe priapism may require surgical intervention.
Caution should be exercised when administrating apomorphine to patients with mild and moderate hepatic impairment due to the increased Cmax and AUC in these patients. Studies of subjects with severe hepatic impairment have not been conducted.
The starting dose should be reduced to 1 mg when administrating apomorphine to patients with mild or moderate renal impairment because the Cmax and AUC are increased in these patients. Studies in subjects with severe renal impairment have not been conducted.
Retinal Pathology in Albino Rats:
Retinal degeneration has been observed in albino rats treated with dopamine agonists for prolonged periods. This lesion has also been observed when albino rats were exposed to these agents for shorter periods under higher intensity light exposures. Similar changes have not been observed in 2-year carcinogenicity studies in albino mice or in rats or monkeys treated for 1 year. Apokyn has not been tested in carcinogenicity studies, but based on its mechanism of action it would be expected to cause similar toxicity. The significance of this effect in humans has not been established, but cannot be disregarded because disruption of a mechanism that is universally present in vertebrates (e.g., disk shedding) may be involved.
Information for Patients:
Apokyn is intended only for subcutaneous injection and must not be given intravenously. Patients and caregivers should be urged to read the attached Patient Package Insert and Directions for Use for the dosing pen. Patients should be instructed to use Apokyn only as prescribed. Patients and/or caregivers who are advised to administer Apokyn in medically unsupervised situations should receive instruction on the proper use of the product from the physician or other suitably qualified health care professional and then observed during the initial dosing.
In particular, patients and caregivers must receive detailed instruction in the use of the dosing pen, with particular attention paid to two issues: 1) Patients need to be aware that the drug is dosed in milliliters, not milligrams. Patients should be particularly cautioned that a dose of 1 mg is represented on the dosing pen as 0.1 mL, and not as 1.0 (the latter representing a dose of 10 mg). It is critical that patients and caregivers be made to understand this distinction to prevent potentially life-threatening overdose if a dose of 1 mg is prescribed. 2) Patients and caregivers must be informed that it is possible to dial in their usual dose of apomorphine even though the cartridge may contain less than that amount of drug. In this case, they will receive only a partial dose with the injection, and the amount left to inject will appear in the dosing window. To complete the correct dose, patients/caregivers will need to “re-arm” the device and dial in the correct amount of the remaining dose. If at all possible, this situation should be avoided, and patients and caregivers should be alerted to the fact that there may be insufficient drug left in the cartridge to deliver a complete dose (for example, patients and caregivers should be urged to keep records of how many doses they have delivered for each cartridge, so that they can replace any cartridge that has an inadequate amount of drug remaining).
Patients should be instructed to rotate the injection site and to observe proper aseptic technique.
Patients should be informed that hallucinations or other manifestations of psychotic-like behavior can occur. Patients should also be advised that, if they have a major psychotic disorder, that Apokyn should not ordinarily be used because of the risk of exacerbating the psychosis. Patients with a major psychotic disorder should also be aware that many treatments for psychosis may decrease the effectiveness of Apokyn..
Patients should be advised that they may develop postural (orthostatic) hypotension with or without symptoms such as dizziness, nausea, syncope, and sometimes sweating. Hypotension and/or orthostatic symptoms may occur more frequently during initial therapy or with an increase in dose at any time (cases have been seen after months of treatment). Accordingly, patients should be cautioned against rising rapidly after sitting or lying down, especially if they have been sitting or lying for prolonged periods, and especially at the initiation of treatment with Apokyn. Alcohol, antihypertensive medications, and vasodilating medications may potentiate the hypotensive effect of apomorphine.
Patients should be alerted to the potential sedating effects of Apokyn, including somnolence and the possibility of falling asleep while engaged in activities of daily living. Since somnolence is a frequent adverse event with potentially serious consequences, patients should neither drive a car nor engage in other potentially dangerous activities until they have gained sufficient experience with Apokyn to gauge whether or not it affects their mental and/or motor performance adversely. Patients should be advised that if increased somnolence or episodes of falling asleep during activities of daily living (e.g., watching television, passenger in a car, etc.) are experienced at any time during treatment, they should not drive or participate in potentially dangerous activities until they have contacted their physician. Because of possible additive effects, caution should be advised when patients are taking other sedating medications or alcohol in combination with Apokyn.
Because apomorphine has not been evaluated for effects on reproduction and embryo-fetal development, patients should be advised to notify their physicians if they become pregnant or intend to become pregnant.
Because of the possibility that apomorphine may be excreted in breast milk, patients should be advised to notify their physicians if they intend to breast-feed.
There have been reports of patients experiencing intense urges to gamble, increased sexual urges, other intense urges and the inability to control these urges while taking one or more of the medications that increases central dopaminergic tone and that are generally used for the treatment of Parkinson’s disease, including Apokyn. Although it is not proven that the medications caused these events, these urges were reported to have stopped in some cases when the dose was reduced or the medication was stopped. Prescribers should ask patients about the development of new or increased gambling urges, sexual urges or other urges while being treated with Apokyn. Patients should inform their physician if they experience new or increased gambling urges, increased sexual urges or other intense urges while taking Apokyn. Physicians should consider dose reduction or stopping the medication if a patient develops such urges while taking Apokyn.
Rare cases of abuse (use of apomorphine significantly in excess of prescribed frequency) have been reported. Apomorphine abuse may be associated with inappropriate sexual behavior.
5HT 3 Antagonists: Based on reports of profound hypotension and loss of consciousness when apomorphine was administered with ondansetron, the concomitant use of apomorphine with drugs of the 5HT3 antagonist class is contraindicated.
Antihypertensive Medications and Vasodilators: The following adverse events were experienced more commonly in patients receiving concomitant antihypertensive medications or vasodilators (n = 94) compared to patients not receiving these concomitant drugs (n = 456): hypotension 10% vs 4%, myocardial infarction 3% vs 1%, serious pneumonia 5% vs 3%, serious falls 9% vs 3%, and bone and joint injuries 6% vs 2%. The mechanism underlying many of these events is unknown, but may represent increased hypotension
Dopamine Antagonists: Since apomorphine is a dopamine agonist, it is possible that dopamine antagonists, such as the neuroleptics (phenothiazines, butyrophenones, thioxanthenes) or metoclopramide, may diminish the effectiveness of Apokyn. Patients with major psychotic disorders, treated with neuroleptics, should be treated with dopamine agonists only if the potential benefits outweigh the risks.
Drugs Prolonging the QT/QTc Interval: Caution should be exercised when prescribing apomorphine concomitantly with drugs that prolong the QT/QTc interval.
Drug/Laboratory Test Interactions: There are no known interactions between Apokyn and laboratory tests.
Carcinogenesis, Mutagenesis, Impairment of Fertility:
Carcinogenicity studies have not been conducted with Apokyn.
Apomorphine was mutagenic in the in vitro bacterial Ames test and the in vitro mammalian mouse lymphoma assay. Apomorphine was also clastogenic in the in vitro chromosomal aberration assay in human lymphocytes and the in vitro mouse lymphoma assay. Apomorphine was negative in the in vivo micronucleus assay in mice.
In a published fertility study in male rats, an adverse effect on fertility was observed at a dose of 2 mg/kg administered subcutaneously (0.6 times the MRHD in a mg/m2 basis). A significant decrease in testis weight was observed in a 39-week study in cynomolgus monkey at subcutaneous doses of 1.0 and 1.5 mg/kg (0.6 and 1 times the MRHD on a mg/m2 basis).
Pregnancy Category C: Reproduction studies have not been conducted with apomorphine. It is also not known whether apomorphine can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. Apomorphine should be given to a pregnant woman only if clearly needed.
It is not known whether apomorphine is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from apomorphine, a decision should be made as to whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
The safety and efficacy of Apokyn in pediatric patients has not been established.
In the apomorphine clinical development program, there were 239 patients less than 65 years of age and 311 who were 65 years of age or older. Adverse events were about equally common in older and younger patients (90 vs 87%), but with older patients more likely to experience confusion and hallucinations. Serious adverse events (life-threatening events or events resulting in hospitalization and/or increased disability) were also more common in older patients (27 vs 17%), with older patients more likely to fall (experiencing bone and joint injuries), have cardiovascular events, develop respiratory disorders, and have gastrointestinal events. Older patients were more likely to discontinue apomorphine treatment as a result of adverse events (29 vs 21%).
Clinical Trial Experience
Adverse Events Incidence in Controlled Clinical Studies:
Apokyn® has been administered to 550 Parkinson’s disease patients who were taking some form of L-Dopa along with other Parkinson’s disease medications. Eighty-six percent of patients were taking a concomitant dopamine agonist. All patients had some degree of spontaneously occurring hypomobility (“off episodes”) at baseline. Adverse events were recorded by the clinical investigators using terminology of their own choosing. To provide a meaningful estimate of the proportion of individuals having adverse events, similar types of events were grouped into a smaller number of standardized categories using MEDDRA dictionary terminology.
The most common adverse events seen in controlled trials were yawning, dyskinesias, nausea and/or vomiting, somnolence, dizziness, rhinorrhea, hallucinations, edema, chest pain, increased sweating, flushing, and pallor.
The most extensive experience with apomorphine in randomized, controlled trials comes from a multicenter randomized placebo-controlled parallel group trial conducted in apomorphine-naïve PD patients treated for up to 4 weeks (Table 1). Individual apomorphine doses in this trial ranged from 2-10 mg, optimized to achieve control of symptoms comparable to each patient’s response to his or her usual dose of L-dopa. The prescriber should be aware that these figures cannot be used to predict the incidence of adverse events in the course of usual medical practice where patient characteristics and other factors differ from those that prevailed in the clinical studies. Similarly, the cited frequencies cannot be compared with figures obtained from other clinical investigations involving different treatments, uses, and investigators. However, the cited figures do provide the prescribing physician with some basis for estimating the relative contribution of drug and nondrug factors to the adverse-event incidence rate in the population studied.
Other Adverse Events Observed During All Phase 2/3 Clinical Trials:
Apokyn has been administered to 550 patients; 89% had at least one adverse event (AE). The most common AEs in addition to those in Table 1 (occurring in at least 5% of the patients and at least plausibly related to treatment) in descending order were injection site complaint, fall, arthralgia, insomnia, headache, depression, urinary tract infection, anxiety, congestive heart failure, limb pain, back pain, Parkinson’s disease aggravated, pneumonia, confusion, sweating increased, dyspnea, fatigue, ecchymosis, constipation, diarrhea, weakness, and dehydration.
Post Marketing Experience
In addition to the adverse events reported during clinical trials, the following adverse reactions have been identified during post-approval use of Apokyn® in Parkinson’s disease patients. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The following psychiatric disorders were reported: impulse control symptoms, pathological gambling, and increased libido (including hypersexuality).
DRUG ABUSE AND DEPENDENCE
Potential for Abuse:
A rarely reported motivation for apomorphine abuse (escalation of dose beyond prescribed frequency) is the use of apomorphine to attempt to avoid all symptoms of all “off” events when “off” events occur frequently. A second, rarely reported, motivation for apomorphine abuse is a psychosexual reaction related to the stimulation of penile erection and increase in libido. Adverse events that have been reported in males with overuse include frequent penile erections, atypical sexual behavior, heightened libido, dyskinesias, agitation, confusion, and depression. No studies have been conducted to evaluate the potential for dependence when apomorphine is used as acute (rescue) treatment of “off” episodes in the patients with “on/off” or “wearing-off” effects associated with late stage Parkinson’s disease.
Intermittent Injection: A report of an accidental overdose of 25 mg injected subcutaneously in a 62 year old man was published in Journal of Neurology, Neurosurgery, and Psychiatry (1990), Vol. 53, pp. 96-102. After 3 minutes, the patient felt nauseated and lost consciousness for 20 minutes. Afterwards, he was alert with a heart rate 40/minute and a supine blood pressure of 90/50. He recovered completely within an hour.
DOSAGE AND ADMINISTRATION
The prescribed dose of Apokyn should always be expressed in mL to avoid confusion and doses greater than 0.6 mL (6 mg) are not recommended. Patients and caregivers must receive detailed instructions in the preparation and injection of doses, with particular attention paid to the correct use of the dosing pen (see PRECAUTIONS: Information for Patients ).
Apokyn is indicated for subcutaneous administration only. Apokyn should not be initiated without use of a concomitant antiemetic. Most antiemetic experience is with trimethobenzamide and this should generally be used. Trimethobenzamide (300 mg tid orally) should be started 3 days prior to the initial dose of apomorphine and continued at least during the first two months of therapy.
Based on reports of profound hypotension and loss of consciousness when apomorphine was administered with ondansetron, the concomitant use of apomorphine with drugs of the 5HT3 antagonist class (including, for example, ondansetron, granisetron, dolasetron, palonosetron, and alosetron) is contraindicated.
The dose of Apokyn must be titrated on the basis of effectiveness and tolerance, starting at 0.2 mL (2 mg) and up to a maximum recommended dose of 0.6 mL (6 mg) as follows:
Patients in an “off” state should be given a 0.2 mL (2 mg) test dose in a setting where blood pressure can be closely monitored by medical personnel. Both supine and standing blood pressure should be checked predose and at 20, 40, and 60 minutes post dose. Patients who develop clinically significant orthostatic hypotension in response to this test dose of apomorphine should not be considered candidates for treatment with Apokyn. If the patient tolerates the 0.2 mL (2 mg) dose, and responds, the starting dose should be 0.2 mL (2 mg) used on an as needed basis to treat existing “off” episodes. If needed, the dose can be increased in 0.1 mL (1 mg) increments every few days on an outpatient basis.
Beyond this, the general principle guiding dosing (described in detail below) is to determine a dose (0.3 mL or 0.4 mL) that the patient will tolerate as a test dose under monitored conditions, and then begin an outpatient dosing trial (periodically assessing both efficacy and tolerability) using a dose 0.1 mL (1 mg) lower than the tolerated test dose.
For patients who tolerate the test dose of 0.2 mL (2 mg) but achieve no response, a dose of 0.4 mL (4 mg) may be administered at the next observed “off” period, but no sooner than 2 hours after the initial test dose of 0.2 mL (2 mg). Both supine and standing blood pressure should be checked predose and at 20, 40, and 60 minutes post dose. If the patient tolerates a test dose of 0.4 mL (4 mg) the starting dose should be 0.3 mL (3 mg) used on an as needed basis to treat existing “off” episodes. If needed, the dose can be increased in 0.1 mL (1 mg) increments every few days on an outpatient basis. If a patient does not tolerate a test dose of 0.4 mL (4 mg), a test dose of 0.3 mL (3 mg) may be administered during a separate “off” period, no sooner than 2 hours after the test dose of 0.4 mL (4 mg). Both supine and standing blood pressure should be checked predose and at 20, 40, and 60 minutes post dose. If the patient tolerates the 0.3 mL (3 mg) test dose, the starting dose should be 0.2 mL (2 mg) used on an as needed basis to treat existing “off” episodes. If needed, and the 0.2 mL (2 mg) dose is tolerated, the dose can be increased to 0.3 mL (3 mg) after a few days. In such a patient, the dose should ordinarily not be increased to 0.4 mL (4 mg) on an out-patient basis.
Most patients studied in the apomorphine development program responded to 0.3 mL to 0.6 mL (3 mg to 6 mg). There is no evidence from controlled trials that doses greater than 0.6 mL (6 mg) give an increased effect and these doses are not recommended. The average frequency of dosing was 3 times per day in the development program, and there is limited experience with single doses greater than 0.6 mL (6 mg), dosing more than 5 times per day and with total daily doses greater than 2.0 mL (20 mg).
If a single dose of apomorphine is ineffective for a particular “off” period, a second dose should not be given for that “off” episode. The efficacy of a second dose for a single “off” episode has not been systematically studied and the safety of redosing has not been characterized.
Patients who have a significant interruption in therapy (more than a week) should be restarted on a 0.2 mL (2 mg) dose and gradually titrated to effect.
When dosing patients with mild and moderate hepatic impairment, caution should be exercised due to the increased Cmax and AUC in these patients.
For patients with mild and moderate renal impairment, the testing dose and subsequently the starting dose should be reduced to 0.1 mL (1 mg).
Patients should be instructed to administer apomorphine as described in the Patient Instruction Leaflets.
Apokyn® containing Apokyn (as Apokyn hemihydrate), USP is supplied as a clear, colorless, sterile, solution in 3 mL cartridges. The 3 mL glass cartridges are used with a manual reusable, multiple dose injector pen. The pen can deliver doses up to 1.0 mL in 0.02 mL increments. The pen is provided in a package with six needles and a carrying case.
The 3 mL glass cartridges are provided as follows:
Cartons of five 3 mL cartridges
Vetter Pharma-Fertigung GmbH & Co. KG
88212 Ravensburg, Germany
Tercica, Inc. a subsidiary of the Ipsen Group,
Brisbane, CA 94005
The injector pen is manufactured by:
Becton, Dickinson and Company
Franklin Lakes, NJ 07417
Becton Dickinson Europe
11, Rue Aristide Berges
B.P. 4, 38800 Le Pont–De-Claix, France
Store at 25°C (77°F)
Excursions permitted to 15 to 30°C (59 to 86°F)
Distributed by: Tercica, Inc. a subsidiary of the
Ipsen Group, Brisbane, CA 94005
REVISED SEPTEMBER 2010
Apokyn ® (AY-po-kin)
(apomorphine hydrochloride injection)
Read the Patient Information that comes with Apokyn before you start taking it and each time you get a refill. There may be new information. Share this information with your caregiver. This leaflet does not take the place of talking with your healthcare provider about your medical condition or treatment. If you or your caregiver do not understand the information, or have any questions about Apokyn, talk with your healthcare provider or pharmacist.
What is Apokyn?
Apokyn is used by injection, as needed, only to treat loss of control of body movements in people with advanced Parkinson’s disease. This condition is also called hypomobility or “off” episodes. An “off” episode may include symptoms such as muscle stiffness, slow movements, and difficulty starting movements. Apokyn may improve your ability to control your movements when it is used during an “off” episode. This may help you walk, talk, or move around easier. Apokyn is not used to prevent “off” episodes. Apokyn does not take the place of your other medicines for PD.
Who should not take Apokyn?
Do not take Apokyn if you are:
Apokyn has not been studied in children.
Before using Apokyn, tell your healthcare provider
How should I take Apokyn?
Read the Apokyn “Instructions for Use” for complete instructions on preparing and giving an injection of Apokyn. Do not inject Apokyn unless you and your caregiver have been taught the right way and both of you understand all the directions. Ask your healthcare provider if you do not understand something.
Use Apokyn exactly as prescribed by your healthcare provider. Apokyn should be injected just under the skin, and not into a vein.
Your healthcare provider or other qualified health professional must show you and your caregiver how to inject Apokyn before you start using it. Your healthcare provider will prescribe Apokyn that comes in prefilled glass cartridges that are used with a special multiple-dose injector pen.
What should I avoid while taking Apokyn?
What are the possible side effects of Apokyn?
Apokyn can also cause yawning, a runny nose, and swelling of your hands, arms, legs, and feet.
Talk to your healthcare provider about any side effects that bother you or that don’t go away.
These are not all the side effects with Apokyn. For more information, ask your healthcare provider or pharmacist.
Other Information about Apokyn.
Studies of people with Parkinson’s disease show that they may be at an increased risk of developing melanoma, a form of skin cancer, when compared to people without Parkinson’s disease. It is not known if this problem is associated with Parkinson’s disease or the medicines used to treat Parkinson’s disease. Apokyn is one of the medicines used to treat Parkinson’s disease, therefore, patients being treated with Apokyn should have periodic skin examinations.
How should I store Apokyn?
General information about Apokyn.
Medicines are sometimes prescribed for conditions that are not mentioned in patient information leaflets. Do not use Apokyn for a condition for which it was not prescribed. Do not give Apokyn to other people, even if they have the same symptoms you have. It may harm them.
This leaflet summarizes the most important information about Apokyn. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information about Apokyn that is written for health professionals. You can also call 1- 877-727-6596 or visit www.apokyn.com for more information.
What are the ingredients in Apokyn?
Active ingredient: Apokyn, USP
Inactive ingredients: sodium metabisulfite, NF, water for injection, USP. It may also contain sodium hydroxide, NF and/or hydrochloric acid, NF. The cartridges also contain benzyl alcohol, NF.
Distributed by: Tercica, Inc. a subsidiary of the Ipsen Group,
Brisbane, CA 94005
REVISED SEPTEMBER 2010
Chemical Structure Figure
Apokyn pharmaceutical active ingredients containing related brand and generic drugs:
Active ingredient is the part of the drug or medicine which is biologically active. This portion of the drug is responsible for the main action of the drug which is intended to cure or reduce the symptom or disease. The other portions of the drug which are inactive are called excipients; there role is to act as vehicle or binder. In contrast to active ingredient, the inactive ingredient's role is not significant in the cure or treatment of the disease. There can be one or more active ingredients in a drug.
Apokyn available forms, composition, doses:
Form of the medicine is the form in which the medicine is marketed in the market, for example, a medicine X can be in the form of capsule or the form of chewable tablet or the form of tablet. Sometimes same medicine can be available as injection form. Each medicine cannot be in all forms but can be marketed in 1, 2, or 3 forms which the pharmaceutical company decided based on various background research results.
Composition is the list of ingredients which combinedly form a medicine. Both active ingredients and inactive ingredients form the composition. The active ingredient gives the desired therapeutic effect whereas the inactive ingredient helps in making the medicine stable.
Doses are various strengths of the medicine like 10mg, 20mg, 30mg and so on. Each medicine comes in various doses which is decided by the manufacturer, that is, pharmaceutical company. The dose is decided on the severity of the symptom or disease.
Apokyn destination | category:
Destination is defined as the organism to which the drug or medicine is targeted. For most of the drugs what we discuss, human is the drug destination.
Drug category can be defined as major classification of the drug. For example, an antihistaminic or an antipyretic or anti anginal or pain killer, anti-inflammatory or so.
Apokyn Anatomical Therapeutic Chemical codes:
A medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. It is called as ATC code. The code is based on Active ingredients of the medicine. A medicine can have different codes as sometimes it acts on different organs for different indications. Same way, different brands with same active ingredients and same indications can have same ATC code.
Apokyn pharmaceutical companies:
Pharmaceutical companies are drug manufacturing companies that help in complete development of the drug from the background research to formation, clinical trials, release of the drug into the market and marketing of the drug.
Researchers are the persons who are responsible for the scientific research and is responsible for all the background clinical trials that resulted in the development of the drug.
Frequently asked QuestionsCan i drive or operate heavy machine after consuming Apokyn?
Depending on the reaction of the Apokyn after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Apokyn not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.Is Apokyn addictive or habit forming?
Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.
Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.
ReviewsDrugs.com conducted a study on Apokyn, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Apokyn consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.
One visitor reported frequency of useHow often in a day do you take the medicine?
Are you taking the Apokyn drug as prescribed by the doctor?
Few medications can be taken 3 times in a day more than prescribed when the doctor's advice mentions the medicine can be taken according to frequency or severity of symptoms. Most times, be very careful and clear about the number of times you are taking the medication. The report of sDrugs.com website users about the frequency of taking the drug Apokyn is mentioned below.
The information was verified by Dr. Arunabha Ray, MD Pharmacology