TheraRadar
Data updated: May 26, 2026

HEPZATO (melphalan hydrochloride)

Oncology Approved 2023-08-14

HEPZATO is indicated for the treatment of Multiple Myeloma.

Source: FDA Label • DELCATH SYSTEMS INC
1
Indication
--
Phase 3 Trials
2
Years on Market

Details

Status
Prescription
First Approved
2023-08-14
Patent Cliff
2034

Pro Metrics

Patent cliff and revenue data

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Routes
INTRA-ARTERIAL
Dosage Forms
POWDER

Companies

Active Ingredient: MELPHALAN HYDROCHLORIDE

HEPZATO Approval History

2024
2025
2026
Original
New Indication
New Form
Label Update
7 FDA actions from 2023 to 2025
Sep 2025 SUPPL
Update · REMS
Jul 2025 SUPPL
Label · Labeling
Oct 2024 SUPPL
Update · REMS

What HEPZATO Treats

1 indications

HEPZATO is approved for 1 conditions since its original approval in 2023. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Multiple Myeloma
Source: FDA Label

HEPZATO Boxed Warning

WARNING Melphalan should be administered under the supervision of a qualified physician experienced in the use of cancer chemotherapeutic agents. Severe bone marrow suppression with resulting infection or bleeding may occur. Controlled trials comparing intravenous (IV) to oral melphalan have shown more myelosuppression with the IV formulation. Hypersensitivity reactions, including anaphylaxis, have occurred in approximately 2% of patients who received the IV formulation. Melphalan is leukemogeni...

HEPZATO Target & Pathway

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Target

DNA ()

HEPZATO 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 HEPZATO's indications

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

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Clinical Trial Registry

8 trials
Trial Sponsor ID Phase Status Title
NCT03192397 results posted I 44417 NCI-2017-01069, I 44417 Ph 1, Ph 2 active not recruiting Chemotherapy, Total Body Irradiation, and Post-Transplant Cyclophosphamide in Reducing Rates of Graft Versus Host Disease in Patients With Hematologic Malignancies Undergoing Donor Stem Cell Transplant
NCT03126916 ANBL1531 NCI-2016-01734, ANBL1531 Ph 3 recruiting Testing the Addition of 131I-MIBG or Lorlatinib to Intensive Therapy in People With High-Risk Neuroblastoma (NBL)
NCT03417284 results posted 2017-0399 NCI-2018-00906, 2017-0399 Ph 1, Ph 2 completed Melphalan Hydrochloride in Treating Participants With Newly-Diagnosed Multiple Myeloma Undergoing Donor Stem Cell Transplantation
NCT03128359 results posted 16419 NCI-2017-00480, 16419 Ph 2 completed High Dose Cyclophosphamide, Tacrolimus, and Mycophenolate Mofetil in Preventing Graft Versus Host Disease in Patients With Hematological Malignancies Undergoing Myeloablative or Reduced Intensity Donor Stem Cell Transplant
NCT02756572 results posted 9567 NCI-2016-00477, 9567 Ph 2 completed Early Allogeneic Hematopoietic Cell Transplantation in Treating Patients With Relapsed or Refractory High-Grade Myeloid Neoplasms
NCT03328936 OSU-17082 NCI-2017-01702, P30CA016058 Ph 2 withdrawn Study of Personalized Melphalan Dosing in the Setting of Autologous Transplant
NCT01688401 J11164 NA_00069122 Ph 1 completed Intra-arterial Chemotherapy for the Treatment of Progressive Diffuse Intrinsic Pontine Gliomas (DIPG).
NCT01293539 results posted J1071 NA_00040637 Ph 2 terminated Intra-arterial Chemotherapy for the Treatment of Intraocular Retinoblastoma
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Active Pipeline

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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.

HEPZATO FDA Label Details

Indications & Usage

FDA Label (PDF)

HEPZATO is indicated for the treatment of Multiple Myeloma.

⚠️ BOXED WARNING

WARNING Melphalan should be administered under the supervision of a qualified physician experienced in the use of cancer chemotherapeutic agents. Severe bone marrow suppression with resulting infection or bleeding may occur. Controlled trials comparing intravenous (IV) to oral melphalan have shown m...

View full patent landscape →
10 OB patents · 2 families · 62 international docs across 10 countries

HEPZATO Patents & Exclusivity

Latest Patent: Sep 2034
Exclusivity: Aug 2030

Patents (10 active)

US9707331 Expires Sep 17, 2034
US9314561 Expires Feb 7, 2034
US10195334 Expires Jan 16, 2033
US11833286 Expires Dec 30, 2032
US11083831 Expires Dec 30, 2032
US11633528 Expires Nov 7, 2032
US10569004 Expires Nov 7, 2032
US10369264 Expires Nov 7, 2032
US10098997 Expires Nov 7, 2032
US11241522 Expires Nov 7, 2032

Exclusivity

NP Until Aug 2026
ODE-438 Until Aug 2030
Source: FDA Orange Book

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Revenue Insights

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Patent Timeline

  • Cliff: 2034
  • 11 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 20 similar drugs
  • Same target/indication analysis
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Data Sources

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