Overview
11 DESCRIPTION Donanemab-azbt is a humanized immunoglobulin gamma 1 (IgG1) monoclonal antibody directed against insoluble N-truncated pyroglutamate amyloid beta, and is expressed in a Chinese hamster ovary cell line. Donanemab-azbt has an approximate molecular weight of 145 kDa. KISUNLA (donanemab-azbt) injection is a sterile, preservative-free, clear to opalescent, colorless to slightly yellow...
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Donanemab-azbt is a humanized immunoglobulin gamma 1 (IgG1) monoclonal antibody directed against insoluble N-truncated pyroglutamate amyloid beta. The accumulation of amyloid beta plaques in the brain is a defining pathophysiological feature of Alzheimer's disease. Donanemab-azbt reduces amyloid beta plaques, as evaluated in Study 1 [see Clinical Studies ( 14 )] . 12.2 Pharmacodynamics Effect of KISUNLA on Amyloid Beta Pathology The effect of KISUNLA on amyloid beta plaque levels in the brain was evaluated using amyloid Positron Emission Tomography (PET) imaging ( 18 F-florbetapir tracer).
Indications
- 1 INDICATIONS AND USAGE KISUNLA TM is indicated for the treatment of Alzheimer's disease. Treatment with KISUNLA should be initiated in patients with mild cognitive impairment or mild dementia stage of disease, the population in which treatment was initiated in the clinical trials. KISUNLA is an amyloid beta-directed antibody indicated for the treatment of Alzheimer's disease. Treatment with KISUNLA should be initiated in patients with mild cognitive impairment or mild dementia stage of disease, the population in which treatment was initiated in the clinical trials. ( 1 )
Common Doses
- 350 mg
- 700 mg
- 050 mg
- 400 mg
Dosage
2 DOSAGE AND ADMINISTRATION Confirm the presence of amyloid beta pathology prior to initiating treatment. ( 2.1 ) Administer KISUNLA as an intravenous infusion over approximately 30 minutes every four weeks as follows ( 2.2 ): Infusion 1: 350 mg Infusion 2: 700 mg Infusion 3: 1,050 mg Infusion 4 and beyond: 1,400 mg Consider stopping dosing with KISUNLA based on reduction of amyloid plaques to minimal levels on amyloid PET imaging. ( 2.2 ) Obtain a recent baseline brain MRI prior to initiating treatment. ( 2.3 , 5.1 ) Obtain an MRI prior to the 2nd, 3rd, 4th, and 7th infusions.
Black Box Warning
WARNING: AMYLOID RELATED IMAGING ABNORMALITIES Monoclonal antibodies directed against aggregated forms of beta amyloid, including KISUNLA, can cause amyloid related imaging abnormalities (ARIA), characterized as ARIA with edema (ARIA-E) and ARIA with hemosiderin deposition (ARIA-H). Incidence and timing of ARIA vary among treatments. ARIA usually occurs early in treatment and is usually asymptomatic, although serious and life-threatening events can occur. ARIA can be fatal.
Contraindications
- 4 CONTRAINDICATIONS KISUNLA is contraindicated in patients with known serious hypersensitivity to donanemab-azbt or to any of the excipients. Reactions have included anaphylaxis [see Warnings and Precautions ( 5.2 )] . KISUNLA is contraindicated in patients with known serious hypersensitivity to donanemab-azbt or to any of the excipients. ( 4 , 5.2 )
Side Effects
- 6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Amyloid Related Imaging Abnormalities [see Warnings and Precautions ( 5.1 )] Hypersensitivity Reactions [see Warnings and Precautions ( 5.2 )] Infusion-Related Reactions [see Warnings and Precautions ( 5.3 )] Most common adverse reactions (at least 10% and higher incidence compared to placebo): ARIA-E, ARIA-H microhemorrhage, ARIA-H superficial siderosis, and headache. ( 6.
Interactions
- No major interactions listed on the FDA label. Always consult a healthcare professional.