TheraRadar
Data updated: May 26, 2026

NELARABINE

Nucleic Acid Synthesis Inhibitors
Oncology Approved 2021-11-17

Nelarabine treats T-cell acute lymphoblastic leukemia and T-cell lymphoblastic lymphoma in both adults and children aged one year and older. It is used for patients whose disease has either relapsed or failed to respond after they have already tried at least two other chemotherapy regimens. This medication provides a therapeutic option for these specific T-cell cancers when previous treatments have not been effective.

Source: FDA Label • AMNEAL • Nucleoside Metabolic Inhibitor

How NELARABINE Works

This drug works by converting into an active metabolite called ara-GTP, which specifically accumulates within leukemic blast cells. Once inside, it incorporates into the cell's DNA to inhibit further DNA synthesis, ultimately leading to the death of the cancer cells.

Source: FDA Label
10
Indications
--
Phase 3 Trials
4
Years on Market

Details

Status
Prescription
First Approved
2021-11-17
Routes
INTRAVENOUS
Dosage Forms
INJECTABLE

NELARABINE Approval History

2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
13 FDA actions from 2021 to 2025
Nov 2025 SUPPL
Label · Labeling
Jul 2025 SUPPL
Label · Labeling
Sep 2024 ORIGINAL
Update

What NELARABINE Treats

2 indications

NELARABINE is approved for 2 conditions since its original approval in 2021. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • T-Cell Acute Lymphoblastic Leukemia
  • T-Cell Lymphoblastic Lymphoma
Source: FDA Label

NELARABINE Boxed Warning

NEUROLOGIC ADVERSE REACTIONS See full prescribing information for complete boxed warning. Severe neurologic adverse reactions have been reported with the use of nelarabine injection. These adverse reactions have included altered mental states including severe somnolence, central nervous system effects including convulsions, and peripheral neuropathy ranging from numbness and paresthesias to motor weakness and paralysis. There have also been reports of adverse reactions associated with demyelinat...

NELARABINE Competitive Set

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Drugs Similar to NELARABINE

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ARRANON
NELARABINE
2 shared
Novartis
Shared indications:
T-Cell Acute Lymphoblastic LeukemiaT-Cell Lymphoblastic Lymphoma
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Clinical Trial Registry

13 trials
Trial Sponsor ID Phase Status Title
NCT03808610 2016-0629 NCI-2018-03360, 2016-0629 Ph 1, Ph 2 terminated Low-Intensity Chemotherapy and Venetoclax in Treating Patients With Relapsed or Refractory B- or T-Cell Acute Lymphoblastic Leukemia
NCT06390319 SJALL23T NCI-2024-03015 Ph 2 recruiting Adding Dasatinib Or Venetoclax To Improve Responses In Children With Newly Diagnosed T-Cell Acute Lymphoblastic Leukemia (ALL) Or Lymphoma (T-LLY) Or Mixed Phenotype Acute Leukemia (MPAL)
NCT07294677 CAVALRY IRB25-1773 Ph 1, Ph 2 recruiting CApivasertib, Venetoclax And Low-intensity chemotheRapY for Adults With ALL/LBL
NCT03020030 16-001 Ph 3 active not recruiting Treatment of Newly Diagnosed Acute Lymphoblastic Leukemia in Children and Adolescents
NCT07072585 AALL2331 NCI-2025-02230, AALL2331 Ph 2, Ph 3 not yet recruiting Testing the Addition of Daratumumab to Chemotherapy for Treating Patients With Newly-Diagnosed T-Cell Lymphoblastic Leukemia (T-ALL) and T-Cell Lymphoblastic Lymphoma (T-LL)
NCT02881086 GMALL08_2013 Ph 3 completed Optimization of Therapy in Adult Patients With Newly Diagnosed Acute Lymphoblastic Leukemia or Lymphoblastic Lymphoma by Individualised, Targeted and Intensified Treatment
NCT03117751 TOT17 NCI-2017-00582 Ph 2, Ph 3 active not recruiting Total Therapy XVII for Newly Diagnosed Patients With Acute Lymphoblastic Leukemia and Lymphoma
NCT06210750 NCI-2023-09521 NCI-2023-09521, S2306 Ph 2 withdrawn Adding Targeted Drugs to Usual Chemotherapy for Adults With Newly Diagnosed T-Cell Acute Lymphoblastic Leukemia (T-ALL) and T-Cell Lymphoblastic Lymphoma (T-LBL)
NCT02763384 results posted 201606146 2P50CA171963-06 Ph 2 terminated BL-8040 and Nelarabine for Relapsed or Refractory T-Acute Lymphoblastic Leukemia/ Lymphoblastic Lymphoma
NCT03328104 ENCERT IRB00095500 Ph 1 completed Everolimus in Combination With Nelarabine, Cyclophosphamide and Etoposide in Lymphoblastic Leukemia/Lymphoma
NCT00981799 results posted T2008-002 Ph 1, Ph 2 terminated Trial of Nelarabine, Etoposide and Cyclophosphamide in Relapsed T-cell ALL and T-cell LL
NCT01094860 2009-0717 NCI-2010-01659 Ph 1 completed Pharmacokinetic (PK) and Pharmacodynamic (PD) Study of Nelarabine in Patients With Relapsed/Refractory Lymphoid Malignancies
NCT02518750 results posted TSALV NCI-2015-00935 Ph 2 terminated Re-Induction Therapy for Relapsed Pediatric T-Cell Acute Lymphoblastic Leukemia or Lymphoma
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Key Completed Trials

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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.

NELARABINE FDA Label Details

Indications & Usage

NELARABINE is indicated for the treatment of T-Cell Acute Lymphoblastic Leukemia; T-Cell Lymphoblastic Lymphoma.

⚠️ BOXED WARNING

WARNING: NEUROLOGIC ADVERSE REACTIONS See full prescribing information for complete boxed warning. Severe neurologic adverse reactions have been reported with the use of nelarabine injection. These adverse reactions have included altered mental states including severe somnolence, central nervous sys...

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Data Sources

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