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Data updated: Jun 28, 2026

Skysona (elivaldogene autotemcel) · bluebird bio

Immunology Approved 2022-09-15

SKYSONA is indicated to slow the progression of neurologic dysfunction in boys 4-17 years of age with early, active cerebral adrenoleukodystrophy (CALD) without an available human leukocyte antigen (HLA)-matched donor for allogeneic hematopoietic stem cell transplant. Early, active cerebral adrenoleukodystrophy refers to asymptomatic or mildly symptomatic (neurologic function score, NFS ≤ 1) boys who have gadolinium enhancement on brain magnetic resonance imaging (MRI) and Loes scores of 0.5-9.

Source: FDA Label
BLA
Biologic
1
Indication
--
Phase 3 Trials
3
Years on Market

Details

Status
Prescription
First Approved
2022-09-15
Patent Cliff
2034

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Routes
Intravenous
Dosage Forms
Injection

Companies

Active Ingredient: elivaldogene autotemcel

Skysona Approval History

2023
2024
2025
2026
Original
New Indication
New Form
Label Update
1 FDA actions from 2022 to 2022
Sep 2022 ORIGINAL
Update · CBER biologic (Purple Book)

What Skysona Treats

1 indications

Skysona is approved for 1 conditions since its original approval in 2022. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Cerebral Adrenoleukodystrophy
Source: FDA Label

Skysona Boxed Warning

HEMATOLOGIC MALIGNANCY Hematologic malignancies, including life-threatening cases of myelodysplastic syndrome and acute myeloid leukemia, have occurred in patients treated with SKYSONA. Patients have been diagnosed between 14 months and 10 years after SKYSONA administration, and the cancers appear to be related to treatment with SKYSONA. Monitor patients closely for evidence of malignancy through complete blood counts at least every 3 months. Monitor patients through assessments for evidence for...

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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

Skysona FDA Label Details

Indications & Usage

SKYSONA is indicated to slow the progression of neurologic dysfunction in boys 4-17 years of age with early, active cerebral adrenoleukodystrophy (CALD) without an available human leukocyte antigen (HLA)-matched donor for allogeneic hematopoietic stem cell transplant. Early, active cerebral adrenoleukodystrophy refers to asymptomatic or mildly symptomatic (neurologic function score, NFS ≤ 1) boys who have gadolinium enhancement on brain magnetic resonance imaging (MRI) and Loes scores of 0.5-9. This indication is approved under accelerated approval based on 24-month Major Functional Disability...

⚠️ BOXED WARNING

WARNING: HEMATOLOGIC MALIGNANCY Hematologic malignancies, including life-threatening cases of myelodysplastic syndrome and acute myeloid leukemia, have occurred in patients treated with SKYSONA. Patients have been diagnosed between 14 months and 10 years after SKYSONA administration, and the cancers...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.