TheraRadar
Data updated: May 26, 2026

PROLEUKIN (aldesleukin)

Trial Activity: Stable 36 active trials
Oncology Approved 1992-05-05

Proleukin (aldesleukin) is a lymphocyte growth factor used in the treatment of advanced malignancies in adult patients. It is specifically indicated for the management of metastatic renal cell carcinoma and metastatic melanoma. The drug serves as a therapeutic intervention to stimulate the immune system's response against these specific types of metastatic cancer.

Source: FDA Label • CHIRON • Lymphocyte Growth Factor

How PROLEUKIN Works

Aldesleukin functions as an interleukin-2 lymphocyte growth factor that activates cellular immunity and produces multiple dose-dependent immunological effects. It enhances lymphocyte mitogenesis and cytotoxicity while inducing the activity of natural killer and lymphokine-activated killer cells. Additionally, the drug stimulates the production of various cytokines, including interferon gamma, tumor necrosis factor, and interleukin-1, to inhibit tumor growth.

Development Insights

National Cancer Institute (NCI) conducting 49 trials (30%)
416 indications explored (Broad Platform)
metastatic melanoma (26 trials)
melanoma (15 trials)
ovarian cancer (12 trials)
2
Indications
--
Phase 3 Trials
34
Years on Market

Details

Status
Prescription
First Approved
1992-05-05
Patent Cliff
2005

Pro Metrics

Patent cliff and revenue data

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Routes
N/A
Dosage Forms
VIAL

Companies

Active Ingredient: ALDESLEUKIN

PROLEUKIN Approval History

1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
13 FDA actions from 1992 to 2023 · 1 indication expansions
Sep 2023 SUPPL
Label · Labeling
May 2019 SUPPL
Label · Labeling
May 2015 SUPPL
Label · Labeling

What PROLEUKIN Treats

2 indications

PROLEUKIN is approved for 2 conditions since its original approval in 1992. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Renal Cell Carcinoma
  • Melanoma
Source: FDA Label

PROLEUKIN Boxed Warning

CAPILLARY LEAK SYNDROME (CLS), NEUROLOGIC TOXICITIES and SERIOUS INFECTIONS Capillary leak syndrome (CLS), including life threatening or fatal reactions, has occurred in patients treated with Proleukin. Do not administer Proleukin to patients with significant cardiac, pulmonary, renal, and hepatic impairment. Administer Proleukin in a hospital setting with an intensive care facility. Withhold or discontinue Proleukin as recommended [see Dosage and Administration (2.4) , Contraindications (4) , W...

PROLEUKIN Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in PROLEUKIN's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications PROLEUKIN treats. First-in-class if their pivotal trials read out positive.

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Clinical Trial Registry

163 trials
Trial Sponsor ID Phase Status Title
NCT06904066 10002088 002088-C Ph 1 recruiting Autologous T Cells Transduced With Retroviral Vectors Expressing TCRs for Participant-specific Neoantigens in Patients With Hematologic Malignancies
NCT02133196 140104 14-C-0104 Ph 2 recruiting T Cell Receptor Immunotherapy for Patients With Metastatic Non-Small Cell Lung Cancer
NCT06253520 10001662 001662-C Ph 1 active not recruiting Autologous T-cells Genetically Engineered to Express Receptors Reactive Against KRAS Mutations in Conjunction With a Vaccine Directed Against These Antigens in Participants With Metastatic Cancer
NCT01174121 100166 10-C-0166 Ph 2 recruiting Immunotherapy Using Tumor Infiltrating Lymphocytes for Patients With Metastatic Cancer
NCT03412877 180049 18-C-0049 Ph 2 recruiting Administration of Autologous T-Cells Genetically Engineered to Express T-Cell Receptors Reactive Against Neoantigens in People With Metastatic Cancer
NCT02621021 160027 16-C-0027 Ph 2 recruiting A Phase 2 Trial for Metastatic Melanoma Using Adoptive Cell Therapy With Tumor Infiltrating Lymphocytes Plus IL-2 Either Alone or Following the Administration of Pembrolizumab
NCT05155033 10000354 000354-C Ph 2 recruiting Phase II Trial of Combination Anti-PD-1 and Aldesleukin for Metastatic Melanoma and Renal Cell Carcinoma
NCT06158828 ABCD-NK 202401147 Ph 1, Ph 2 recruiting Pilot Study of Memory-like Natural Killer (ML NK) Cells After TCRαβ T Cell Depleted Haploidentical Transplant in AML
NCT03190941 170113 17-C-0113 Ph 1, Ph 2 recruiting Administering Peripheral Blood Lymphocytes Transduced With a Murine T-Cell Receptor Recognizing the G12V Variant of Mutated RAS in HLA-A*11:01 Patients
NCT01955460 2012-0758 NCI-2014-01211, RP110553-P4 Ph 1 active not recruiting Genetically Modified T-Cells Followed by Aldesleukin in Treating Patients With Stage III-IV Melanoma
NCT01038778 results posted NCI-2012-02900 NCI-2012-02900, CDR0000662915 Ph 1, Ph 2 active not recruiting Entinostat in Combination With Aldesleukin in Treating Patients With Metastatic Kidney Cancer
NCT03017131 i 283616 NCI-2016-01477, i 283616 Ph 1 active not recruiting Genetically Modified T Cells and Decitabine in Treating Patients With Recurrent or Refractory Ovarian, Primary Peritoneal, or Fallopian Tube Cancer
NCT02830724 160131 16-C-0131 Ph 1, Ph 2 recruiting Administering Peripheral Blood Lymphocytes Transduced With a CD70-Binding Chimeric Antigen Receptor to People With CD70 Expressing Cancers
NCT00574652 ANRS HC 21 VASCU IL-2 2006-004039-31 Ph 1, Ph 2 completed Evaluation of Clinical Efficacy and Immunologic Response After IL-2 Therapy in HCV-related Vasculitis Patients
NCT06236425 MCC-23098 Ph 1 active not recruiting TBio-4101 and Pembro wi/ or w/o Chemo in Recurrent/Metastatic HNSCC
NCT05267626 CP-AU-007-01 Ph 1, Ph 2 recruiting Study of AU-007, A Monoclonal Antibody That Binds to IL-2 and Inhibits IL-2Rα Binding, in Patients With Unresectable Locally Advanced or Metastatic Cancer
NCT04629729 FT819-101 Ph 1 active not recruiting FT819 in Subjects With B-cell Malignancies
NCT03745326 results posted 190017 19-C-0017 Ph 1, Ph 2 terminated Administering Peripheral Blood Lymphocytes Transduced With a Murine T-Cell Receptor Recognizing the G12D Variant of Mutated RAS in HLA-A*11:01 Patients
NCT04347616 NK4AML HEMAML42 2019-001929-27 Ph 1, Ph 2 terminated Natural Killer-cell Therapy for Acute Myeloid Leukemia
NCT02858310 results posted 160154 16-C-0154 Ph 1, Ph 2 completed E7 TCR T Cells for Human Papillomavirus-Associated Cancers
NCT05639972 192104 Pro2022000437 Ph 1, Ph 2 recruiting E7 T-cell Receptor (TCR) -T Cell Induction Therapy for Locoregionally Advanced HPV-associated Cancers
NCT05686226 192204 U01CA287904, NCI-2023-02813 Ph 2 recruiting E7 TCR-T Cell Immunotherapy for Human Papillomavirus (HPV) Associated Cancers
NCT05566223 CheckCell-2 2022LC001 Ph 1, Ph 2 withdrawn CISH Inactivated TILs in the Treatment of NSCLC
NCT04426669 2019LS002 Ph 1, Ph 2 completed A Study of Metastatic Gastrointestinal Cancers Treated With Tumor Infiltrating Lymphocytes in Which the Gene Encoding the Intracellular Immune Checkpoint CISH Is Inhibited Using CRISPR Genetic Engineering
NCT07389239 IRB25-1721 Ph 1, Ph 2 not yet recruiting A Study Evaluating the Immunotherapy Treatment for Ovarian Cancer and Other Advanced Malignancies.
NCT03666000 PBCAR0191-01 Ph 1 recruiting Dose-escalation and Dose-expansion Study of Safety of Azer-cel (PBCAR0191) in Participants With Relapsed/Refractory (r/r) Non-Hodgkin Lymphoma (NHL) and r/r B-cell Acute Lymphoblastic Leukemia (B-ALL)
NCT03474497 results posted 1166212 Ph 1, Ph 2 active not recruiting UCDCC#272: IL-2, Radiotherapy, and Pembrolizumab in Patients Refractory to Checkpoint Blockade
NCT00923806 090047 09-C-0047 Ph 1 terminated Gene Therapy Using Anti-CEA Cells to Treat Metastatic Cancer
NCT05357027 TC-E202-CC-PI Ph 1, Ph 2 terminated HPV16 E6 TCR T Cells for Cervical Carcinoma
NCT05989828 1B-23-1 NCI-2023-04697, 1B-23-1 Ph 1 recruiting A2-ESO-1 TCR-Engineered T Cells for Relapsed/Refractory Advanced or Metastatic NY-ESO-1 Overexpression Positive Triple Negative Breast Cancer
NCT06255028 CALiPSO-1 CNTY-101-151-01 2024-518797-13 Ph 1 active not recruiting A Study of CNTY-101 in Participants With Refractory B Cell-mediated Autoimmune Diseases
NCT06626256 24231 NCI-2024-08121, 24231 Ph 1 withdrawn STIL101 for Injection for the Treatment of Locally Advanced, Metastatic or Unresectable Pancreatic Cancer, Colorectal Cancer, Renal Cell Cancer, Cervical Cancer and Melanoma
NCT04155710 IOV-CLL-01 Ph 1 completed Study of Autologous Peripheral Blood Lymphocytes in the Treatment of Patients With CLL or SLL
NCT01319565 results posted 110123 11-C-0123 Ph 2 completed Prospective Randomized Study of Cell Transfer Therapy for Metastatic Melanoma Using Tumor Infiltrating Lymphocytes Plus IL-2 Following Non-Myeloablative Lymphocyte Depleting Chemo Regimen Alone or in Conjunction With 12Gy Total Body Irradiation (TBI...
NCT05802056 MC220404 NCI-2023-02250, MC220404 Ph 1 recruiting Aldesleukin With Nivolumab and Standard Chemotherapy for Treatment of Gastric Cancer With Peritoneal Metastasis
NCT05336409 ELiPSE-1 CNTY-101-111-01 (ELiPSE-1) Ph 1 terminated A Study of CNTY-101 in Participants With CD19-Positive B-Cell Malignancies
NCT03260504 results posted 9611 NCI-2017-01416, RG1717068 Ph 1 terminated Aldesleukin and Pembrolizumab in Treating Patients With Advanced or Metastatic Kidney Cancer
NCT03039673 MIROCALS H2020/PHRC-N/2014/GB-01 2015-005347-14 Ph 2 completed MIROCALS: Modifying Immune Response and OutComes in ALS
NCT01697527 12-000153 NCI-2012-01548 Ph 2 active not recruiting Gene and Vaccine Therapy in Treating Patients With Advanced Malignancies
NCT03449108 2017-0672 NCI-2018-00918, 2017-0672 Ph 2 active not recruiting LN-145 or LN-145-S1 in Treating Patients With Relapsed or Refractory Ovarian Cancer, Triple Negative Breast Cancer (TNBC), Anaplastic Thyroid Cancer, Osteosarcoma, or Other Bone and Soft Tissue Sarcomas
NCT05400122 CASE6Y21 Ph 1 suspended Natural Killer (NK) Cells in Combination With Interleukin-2 (IL-2) and Transforming Growth Factor Beta (TGFbeta) Receptor I Inhibitor Vactosertib in Cancer
NCT03782636 ITAD 13341 Ph 2 active not recruiting Interleukin-2 Therapy of Autoimmunity in Diabetes (ITAD)
NCT05296564 0752-20-HMO Ph 1, Ph 2 recruiting Anti-NY-ESO-1 TCR-Gene Engineered Lymphocytes Given by Infusion to Patients With NY-ESO-1 -Expressing Metastatic Cancers
NCT06690281 10001870 001870-C Ph 2 withdrawn A Phase II Study of Adjuvant Immunotherapy Targeting KRAS G12D, KRAS G12V, or TP53 R175H for Participants With Advanced Gastrointestinal Malignancies
NCT06204991 ADP-TILIL7 MM2319 Ph 1 recruiting To Evaluate the Safety and Efficacy of ADP-TILIL7 in Patients With Locally Advanced or Metastatic Melanoma
NCT02775292 NYM 15-001433 NCI-2016-00201, R35CA197633 Ph 1 completed Gene-Modified T Cells, Vaccine Therapy, and Nivolumab in Treating Patients With Stage IV or Locally Advanced Solid Tumors Expressing NY-ESO-1
NCT05881525 TC-N201-ST Ph 1 recruiting NY-ESO-1 TCR-T Cells for NY-ESO-1 Positive Subjects With Advanced Solid Tumors
NCT07063875 SILVER SILVER Trial Ph 1, Ph 2 recruiting Adding IL-2 to Tebentafusp to Eradicate Cancer Progression
NCT04625205 NTC-001 2019-003908-13, 2023-508524-35-00 Ph 1 terminated A Clinical Study of the Safety and Activity of the Investigational Cell Therapy NEO-PTC-01 in Patients With Advanced Melanoma
NCT05483491 192004 NCI-2022-07699, Pro2022002198 Ph 1 recruiting KK-LC-1 TCR-T Cell Therapy for Gastric, Breast, Cervical, and Lung Cancer

Showing 50 of 163 trials

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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.

PROLEUKIN FDA Label Details

Indications & Usage

FDA Label (PDF)

PROLEUKIN is indicated for the treatment of Renal Cell Carcinoma; Melanoma.

⚠️ BOXED WARNING

WARNING: CAPILLARY LEAK SYNDROME (CLS), NEUROLOGIC TOXICITIES and SERIOUS INFECTIONS Capillary leak syndrome (CLS), including life threatening or fatal reactions, has occurred in patients treated with Proleukin. Do not administer Proleukin to patients with significant cardiac, pulmonary, renal, and ...

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Data Sources

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

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment