
THE SAFETY OF KISUNLA VS PLACEBO WAS STUDIED IN MORE THAN 1900 PATIENTS IN CLINICAL TRIALS1*
ADVERSE REACTIONS REPORTED IN ≥5% OF PATIENTS TREATED WITH KISUNLA AND ≥2% HIGHER THAN PLACEBO IN TRAILBLAZER-ALZ 21

Bar graph depicting adverse reactions reported in ≥5% of patients treated with Kisunla (n=853) and ≥2% higher than placebo (n=874) in TRAILBLAZER-ALZ 2: amyloid-related imaging abnormalities-hemosiderin deposition (ARIA-H) microhemorrhage. ARIA-H microhemorrhage and ARIA-H superficial siderosis were assessed by MRI. A participant could have both microhemorrhage and superficial siderosis. The incidence of ARIA-H in TRAILBLAZER-ALZ 2 was 31% (263/853) in patients treated with Kisunla vs 13% (111/874) in patients treated with placebo (25% vs 11%), amyloid-related imaging abnormalities-edema (ARIA-E) (24% vs 2%), ARIA-H superficial siderosis (15% vs 3%), headache (13% vs 10%), and infusion-related reactions (IRR) (9% vs 0.5%).
aAs assessed by MRI. A participant could have both microhemorrhage and superficial siderosis. The incidence of ARIA-H inTRAILBLAZER-ALZ 2 was 31% (263/853) in patients treated with Kisunla vs 13% (111/874) in patients treated with placebo.1
Including asymptomatic radiographic events, ARIA was observed in 36% (307/853) of patients treated with Kisunla compared with 14% (122/874) of patients treated with placebo.1
- ARIA-E (edema) includes brain edema or sulcal effusions1
- ARIA-H (hemosiderin deposition) most commonly includes microhemorrhage and superficial siderosis1
13% of patients on Kisunla discontinued treatment due to adverse reactions vs 4% on placebo. The most common adverse reaction leading to discontinuation was infusion-related reaction (IRR) (4% of patients on Kisunla vs 0% on placebo).1
*1912 patients with Alzheimer’s disease (AD) received Kisunla once monthly for ≥6 months.1
ARIA-E=amyloid-related imaging abnormalities-edema; ARIA-H=amyloid-related imaging abnormalities-hemosiderin deposition; MRI=magnetic resonance imaging.
SELECT IMPORTANT SAFETY INFORMATION
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). ARIA usually occurs early in treatment and is usually asymptomatic, although serious and life-threatening events rarely can occur. Serious intracerebral hemorrhages >1 cm, some of which have been fatal, have been observed in patients treated with this class of medications. Because ARIA-E can cause focal neurologic deficits that can mimic an ischemic stroke, treating clinicians should consider whether such symptoms could be due to ARIA-E before giving thrombolytic therapy in a patient being treated with Kisunla.
ApoE ε4 Homozygotes: Patients who are apolipoprotein E ε4 (ApoE ε4) homozygotes treated with this class of medications, including Kisunla, have a higher incidence of ARIA, including symptomatic, serious, and severe radiographic ARIA, compared to heterozygotes and noncarriers. Testing for ApoE ε4 status should be performed prior to initiation of treatment to inform the risk of developing ARIA. Prior to testing, prescribers should discuss with patients the risk of ARIA across genotypes and the implications of genetic testing results.
Consider the benefit for the treatment of Alzheimer’s disease and risk of ARIA when deciding to treat with Kisunla.
SYMPTOMATIC ARIA, RADIOGRAPHIC SEVERITY, AND INTRACEREBRAL HEMORRHAGE IN TRAILBLAZER-ALZ 2
The majority of ARIA cases occurred within the first 24 weeks of treatment, but patients may experience ARIA at any time. ARIA is usually asymptomatic, although, rarely, serious and life-threatening events can occur.1
Symptomatic ARIA occurred in 6% (52/853) of patients treated with Kisunla. Clinical symptoms associated with ARIA resolved in approximately 85% (44/52) of patients.1
ARIA-E
- Radiographically severe ARIA-E was reported in 2% of patients (14/853) treated with Kisunla1
- 83% of patients who experienced ARIA-E had complete radiographic resolution when ARIA-E was managed according to protocol1
ARIA-H
- Radiographically severe ARIA-H microhemorrhage was reported in 5% of patients (40/853) and radiographically severe ARIA-H superficial siderosis was reported in 5% of patients (46/853) treated with Kisunla1
- ARIA-H does not resolve radiographically, but it can stabilize2
Incidence of intracerebral hemorrhage (>1 cm in diameter) was reported in 0.5% (4/853) of patients on Kisunla compared with 0.2% (2/874) of patients on placebo. Fatal events of intracerebral hemorrhage in patients taking Kisunla have been observed.1
Less than 2% of patients in the trial experienced ARIA that led to serious outcomes, such as hospitalization.2
ARIA=amyloid-related imaging abnormalities; ARIA-E=amyloid-related imaging abnormalities-edema; ARIA-H=amyloid-related imaging abnormalities-hemosiderin deposition.
Learn more about the risk of ARIA based on ApoE ε4 status
ApoE=apolipoprotein E; ARIA=amyloid-related imaging abnormalities; ARIA-E=amyloid-related imaging-abnormalities-edema; ARIA-H=amyloid-related imaging abnormalities-hemosiderin deposition; MRI=magnetic resonance imaging.
SELECT IMPORTANT SAFETY INFORMATION
ARIA Monitoring and Dose Management Guidelines
- Baseline brain MRI and periodic monitoring with MRI are recommended prior to the 2nd, 3rd, 4th, and 7th infusions. Enhanced clinical vigilance for ARIA is recommended during the first 24 weeks of treatment with Kisunla. If a patient experiences symptoms suggestive of ARIA, clinical evaluation should be performed, including MRI if indicated. If ARIA is observed on MRI, careful clinical evaluation should be performed prior to continuing treatment.
- Recommendations for dosing in patients with ARIA-E and ARIA-H depend on clinical symptoms and radiographic severity. Depending on ARIA severity, use clinical judgment in considering whether to continue dosing, interrupt treatment, or permanently discontinue Kisunla. See Prescribing Information for additional dosing considerations.
- There is limited experience in patients who continued dosing through asymptomatic but radiographically mild to moderate ARIA-E. There are limited data for dosing patients who experienced recurrent episodes of ARIA-E.
Patients who are apolipoprotein E ε4 (ApoE ε4) homozygotes treated with monoclonal antibodies directed against aggregated forms of beta amyloid, including Kisunla, have a higher incidence of ARIA, including symptomatic, serious, and severe radiographic ARIA, compared with heterozygotes and noncarriers. Testing for ApoE ε4 status should be performed prior to initiation of treatment to inform the risk of developing ARIA.1
ApoE ε4=apolipoprotein E type 4 allele; ARIA=amyloid-related imaging abnormalities; ARIA-E=amyloid-related imaging abnormalities-edema; ARIA-H=amyloid-related imaging abnormalities-hemosiderin deposition.
ARIA MANAGEMENT
Dosing Recommendations for Patients With ARIA-E1

aMild: discomfort noticed, but no disruption of normal daily activity; Moderate: discomfort sufficient to reduce or affect normal daily activity; Severe: incapacitating, with inability to work or to perform normal daily activity.1
bSuspend until MRI demonstrates radiographic resolution and symptoms, if present, resolve; consider a follow-up MRI to assess for resolution 2 to 4 months after initial identification. Resumption of dosing should be guided by clinical judgment.1
For asymptomatic or mild clinical symptomsa with ARIA-E and mild severity on MRI, dosing may continue based on clinical judgment. For moderate or severe clinical symptoms with ARIA-E, or for moderate or severe ARIA-E on MRI, suspend dosing.1,b
Dosing Recommendations for Patients with ARIA-H1

aSuspend until MRI demonstrates radiographic stabilization and symptoms, if present, resolve; resumption of dosing should be guided by clinical judgment; consider a follow-up MRI to assess for stabilization 2 to 4 months after initial identification.1
bSuspend until MRI demonstrates radiographic stabilization and symptoms, if present, resolve. Use clinical judgment when considering whether to continue treatment or permanently discontinue Kisunla.1
For asymptomatic ARIA-H with mild severity on MRI, dosing may continue at current dose and schedule. For symptomatic ARIA-H, or for moderate or severe ARIA-H on MRI, suspend dosing.1,a,b
In patients who develop intracerebral hemorrhage >1 cm in diameter during treatment with Kisunla, suspend dosing until MRI demonstrates radiographic stabilization and symptoms, if present, resolve. Resumption of dosing should be guided by clinical judgment.1
ARIA=amyloid-related imaging abnormalities; ARIA-E=amyloid-related imaging abnormalities-edema; ARIA-H=amyloid related imaging abnormalities-hemosiderin deposition; MRI=magnetic resonance imaging.
References:
- Kisunla (donanemab-azbt). Prescribing Information. Lilly USA, LLC.
- Sims JR, Zimmer JA, Evans CD, et al; for TRAILBLAZER-ALZ 2 Investigators. Donanemab in early symptomatic Alzheimer disease: the TRAILBLAZER-ALZ 2 randomized clinical trial. JAMA. 2023;330(6):512-527.