Study of Efficacy, Safety and Tolerability of ACZ885 (Canakinumab) in Pediatric and Young Adult Patients With Sickle Cell Anemia

Inclusion Criteria:

- Male and female subjects ages 8-20 years of age (both inclusive) diagnosed with sickle
cell anemia (HbSS) or sickle beta0 thalassemia (documented by family studies, or
analysis of either hemoglobin or DNA).

- Patient's written informed consent from those ≥18 years of age must be obtained before
any assessment is performed. Parent or legal guardian's written informed consent and
child's assent, if appropriate, are required before any assessment is performed for
patients < 18 years of age.

- Detectable baseline of background or episodic pain measured by daily e-diary over 1 to
2 weeks during screening period as defined below: Average daily pain score ≥ 1 cm
without analgesic use over a period of at least 7 days and/or, At least one episode of
pain requiring analgesic use during a period of up to 14 days.

- History of ≥2 vaso-occlusive pain episodes in the past year, as defined as pain with
no other, non-sickle cell identifiable cause that requires analgesia and interferes
with the patient's normal daily routine.

Exclusion Criteria:

- History of known hypersensitivity to canakinumab.

- Ongoing or treatment with the past 3 months with red blood cell transfusion therapy,
or have evidence of iron overload requiring chelation therapy.

- Transcranial Doppler ultrasound in the past year or at screening in patients with an
accessible transtemporal window, demonstrating velocity in middle or anterior cerebral
or internal carotid artery ≥200 cm/sec.

- Administration of any other blood products within 3 weeks of screening visit.

Other protocol-defined inclusion/exclusion criteria may apply.