APOMORPHINE INJ,SOLN
Clinical Criteria Summary
Document 794
Indication
- Treatment of motor fluctuations in adults with advanced Parkinson’s disease
Patient Population & Eligibility Criteria
- Adults ≥30 years old
- Parkinson’s disease diagnosis >3 years prior to therapy initiation
- Stable dose of oral medications for at least 4 weeks prior to enrollment
- Mean of ≥3 hours of off time per day over 2 days at screening/baseline, with no single day recording <2 hours of off time
- Patients experiencing persistent motor fluctuations despite optimized oral or transdermal medication/levodopa therapy
- Considered when oral medications can no longer manage motor fluctuations and dyskinesias
- May be appropriate for patients who are not candidates for deep brain stimulation (DBS) or other invasive devices (e.g., elderly, non-surgical candidates)
Dosing & Administration
- Administered as a continuous subcutaneous infusion via Onapgo pump using 98 mg/20 mL (4.9 mg/mL) single dose cartridges
- Initial dose: 1 mg/hour
- Titrate based on response and tolerability in 0.5 to 1 mg/hour increments at intervals ≥1 day
- Maximum continuous dosage: 6 mg/hour
- Maximum total daily dose (including continuous infusion and extra doses): 98 mg/day administered over the waking day (e.g., 16 hours)
Pretreatment & Monitoring Requirements
- Due to incidence of nausea and vomiting, recommend starting trimethobenzamide 300 mg three times a day 3 days prior to initial apomorphine dose
- Alternative: Start without antiemetics and titrate slowly based on effectiveness and tolerance
- Monitor for infusion site reactions (skin nodules, erythema/pruritus, bruising), which are frequent reasons for discontinuation; mitigation strategies for skin irritation may be considered
Contraindications
- Concomitant use of 5HT3 antagonists (including antiemetics such as ondansetron and alosetron)
- Hypersensitivity or allergic reaction to apomorphine or any excipients, including sulfite (sodium metabisulfite)
Warnings & Precautions
- Nausea and vomiting
- Somnolence and falling asleep during activities of daily living
- Syncope/hypotension and orthostatic hypotension
- Falls
- Infusion site reactions
- Hallucinations/psychosis
- Dyskinesia
- Hemolytic anemia
- Impulse control disorder/compulsive behaviors
- Cardiac events
- QTc prolongation
- Hypersensitivity
- Fibrotic complications
- Priapism
Drug Interactions
- 5HT3 antagonists (risk of hypotension)
- Antihypertensive drugs and vasodilators (risk of hypotension)
- Alcohol (risk of hypotension)
- Dopamine antagonists (may diminish efficacy)
- Drugs prolonging QT/QTc interval
Special Populations
- Pregnancy: No adequate data available
- Lactation: No data available
Clinical Considerations & Place in Therapy
- Device-assisted therapies considered when oral medications can no longer manage motor fluctuations and dyskinesias
- Non-motor symptoms of advanced Parkinson’s disease (e.g., severe dementia, chronic hallucinations, or psychosis) may impact therapy selection
- Indicated for use during waking hours; daytime-only pump wear may be preferred by some patients, with bolus function available for morning use to prevent morning akinesia
- Higher incidence of somnolence compared to continuous levodopa-based therapies (subcutaneous or intestinal gel)
Document 809
Exclusion Criteria
- Concurrent use of apomorphine injections
- Concurrent use of a 5-HT3 antagonist (e.g., ondansetron, granisetron, dolasetron, palonosetron and alosetron)
- Concurrent use of continuous subcutaneous or intrajejunal infusion of carbidopa/levodopa
- Baseline resting corrected QT interval (QTc) > 450 msec for males and > 470 msec for females on electrocardiogram (ECG) or other risk factors for a prolonged QT interval
Inclusion Criteria
- Diagnosis of Idiopathic Parkinson’s Disease
- Patient is under the care of a VA or VA Community Care neurologist or locally designated expert
- Motor fluctuations (“wearing off”) that require dosing of dopaminergic medications at intervals every 4 hours or less
- Either higher frequency (≥5 times daily) carbidopa/levodopa immediate-release (IR) tablet or carbidopa/levodopa extended-release (ER) capsules throughout the day have not adequately resolved OFF periods
- Contraindication, intolerance, or inadequate therapeutic response to at least one agent from two of the following classes: dopamine agonist, catechol-O methyl transferase [COMT] inhibitor, monoamine oxidase type B [MAO B] inhibitor
- Discussion with the patient/caregiver/family regarding realistic efficacy expectations, device management, and potential device-related complications documented in the patient’s medical record
QT Prolongation Risk Factors
- Electrolyte abnormalities
- Heart failure
- Congenital long QT syndrome
- Family history of long QT syndrome
- Concomitant medications known to prolong QTc interval