TheraRadar
Data updated: May 26, 2026

PEDMARK (sodium thiosulfate)

Trial Activity: Stable 4 active trials
Oncology Approved 2022-09-20

Pedmark helps pediatric patients aged one month and older reduce the risk of hearing loss while undergoing cisplatin chemotherapy. It is used specifically for those with localized, non-metastatic solid tumors. This medication is intended for use with cisplatin infusions lasting six hours or less, as it may not be effective if permanent ear damage has already occurred during longer infusions.

Source: FDA Label • FENNEC PHARMS INC

How PEDMARK Works

Sodium thiosulfate works by interacting directly with cisplatin to create an inactive platinum species. It also enters cells to increase antioxidant glutathione levels and block oxidative stress, which prevents the death of hair cells in the cochlea.

Development Insights

National Cancer Institute (NCI) conducting 3 trials (17%)
62 indications explored (Broad Platform)
peritoneal carcinomatosis (3 trials)
calciphylaxis (3 trials)
ovarian cancer (2 trials)
1
Indication
--
Phase 3 Trials
1
Priority Reviews
3
Years on Market

Details

Status
Prescription
First Approved
2022-09-20
Patent Cliff
2039

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Routes
INTRAVENOUS
Dosage Forms
SOLUTION

Companies

Active Ingredient: SODIUM THIOSULFATE

PEDMARK Approval History

2023
2024
2025
2026
Original
New Indication
New Form
Label Update
1 FDA actions from 2022 to 2022
Sep 2022 ORIGINAL Priority
Update · Type 5 - New Formulation or New Manufacturer

What PEDMARK Treats

2 indications

PEDMARK is approved for 2 conditions since its original approval in 2022. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Ototoxicity
  • Solid Tumors
Source: FDA Label

PEDMARK 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.

Drugs Similar to PEDMARK

3 of 5

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

AUGTYRO
REPOTRECTINIB
1 shared
Bristol-Myers Squibb
Shared indications:
Solid Tumors
JEMPERLI
DOSTARLIMAB-GXLY
1 shared
GSK
Shared indications:
Solid Tumors
MEKINIST
TRAMETINIB
1 shared
Novartis
Shared indications:
Solid Tumors
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Clinical Trial Registry

18 trials
Trial Sponsor ID Phase Status Title
NCT03127774 AAAQ9194 Ph 2 active not recruiting Surgery and Heated Intraperitoneal Chemotherapy for Adrenocortical Carcinoma
NCT05382338 ACNS2031 NCI-2022-04866, ACNS2031 Ph 3 recruiting A Study of Treatment for Medulloblastoma Using Sodium Thiosulfate to Reduce Hearing Loss
NCT04847063 210012 21-C-0012 Ph 1 recruiting Individual Response to Hyperthermic Intraperitoneal Chemotherapy (HIPEC) Treatment of Peritoneal Carcinomatosis From Peritoneal Mesothelioma or Atypical Mesothelial Proliferation or From Ovarian, Colorectal, or Appendiceal Histologies
NCT05018221 BEAT-Calci BEAT-Calci Ph 3 recruiting Better Evidence and Translation for Calciphylaxis
NCT02527213 1STS12001 Ph 3 withdrawn Double-blind Trial of Sodium Thiosulfate for the Treatment of Pain Associated With Calcific Uremic Arteriolopathy
NCT03092518 results posted 170070 17-C-0070 Ph 2 completed Heated Intraperitoneal Chemotherapy and Gastrectomy for Gastric Cancer With Positive Peritoneal Cytology
NCT03267277 results posted 170161 17-E-0161 Ph 2, Ph 3 completed Sodium Thiosulfate for Treatment of Calcinosis Associated With Juvenile and Adult Dermatomyositis
NCT04541355 results posted 20208 NCI-2020-05752 Ph 2 completed Sodium Thiosulfate in Preventing Ototoxicity for Squamous Cell Cancer Patients Undergoing Chemoradiation With Cisplatin
NCT00716976 results posted ACCL0431 COG-ACCL0431, CDR0000588655 Ph 3 completed Sodium Thiosulfate in Preventing Hearing Loss in Young Patients Receiving Cisplatin for Newly Diagnosed Germ Cell Tumor, Hepatoblastoma, Medulloblastoma, Neuroblastoma, Osteosarcoma, or Other Malignancy
NCT02624479 TSTS 009_15 Ph 1 withdrawn Pharmacokinetic Study to Investigate the Bioavailability and Tolerability of 3 Oral Formulations of Sodium Thiosulfate
NCT03639779 results posted BIO-18-14095 Ph 4 terminated Efficacy of Intralesional Sodium Thiosulfate Versus Intralesional Saline for Dystrophic and Idiopathic Calcinosis Cutis
NCT02092298 results posted 2013-0989 NCI-2014-01105 Ph 2 completed Laparoscopic Hyperthermic Intraperitoneal Chemoperfusion (HIPEC) for Metastatic Gastric Cancer
NCT03150420 CALISTA ST-001 Ph 3 terminated A Phase 3 Clinical Trial of Intravenous Sodium Thiosulfate in Acute Calciphylaxis Patients
NCT01833832 results posted 130114 13-C-0114 Ph 2 completed Surgery and Heated Chemotherapy for Adrenocortical Carcinoma
NCT02538939 THIOCAL RC14_0394 Ph 2 completed Efficacy and Tolerance of Sodium Thiosulfate Injection After Ultrasound-guided Percutaneous Irrigation of Calcific Tendinopathy of the Rotator Cuff
NCT01572844 results posted 121131 Ph 2 completed Topical Sodium Thiosulfate and Fractional Carbon Dioxide Laser in Treating Dermatomyositis Associated Calcinosis
NCT00397501 IRB00002188 2188, SOL-06015 Ph 1, Ph 2 withdrawn BBBD Followed By Methotrexate and Carboplatin With or Without Trastuzumab in Treating Women With Breast Cancer That Has Spread to the Brain
NCT01918904 STS-CALC 205683 Ph 2 withdrawn A Pilot Study to Evaluate Topical Sodium Thiosulfate Therapy for Calcinosis Cutis
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Active Pipeline

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Ongoing clinical trials by development phase

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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.

PEDMARK FDA Label Details

Indications & Usage

FDA Label (PDF)

PEDMARK is indicated for the treatment of Ototoxicity; Solid Tumors.

View full patent landscape →
6 OB patents · 1 families · 79 international docs across 26 countries

PEDMARK Patents & Exclusivity

Latest Patent: Jul 2039
Exclusivity: Sep 2029

Patents (6 active)

US11998604 Expires Jul 1, 2039
US11992530 Expires Jul 1, 2039
US11964018 Expires Jul 1, 2039
US11617793 Expires Jul 1, 2039
US11510984 Expires Jul 1, 2039
US11291728 Expires Jul 1, 2039

Exclusivity

ODE-384 Until Sep 2029
Source: FDA Orange Book

Pro Intelligence Preview

Deep insights for PEDMARK

Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2039
  • 6 active patents

Trial Analysis

  • 18 total trials
  • Stage: Stable

Competitive Landscape

  • 5 similar drugs
  • Same target/indication analysis
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Full approval history • All patents • Revenue trends • Competitor analysis

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