TheraRadar
Data updated: May 26, 2026

NALOXONE HYDROCHLORIDE (AUTOINJECTOR) (naloxone hydrochloride)

Trial Activity: Declining 2 active trials
CNS Approved 2022-02-28

Development Insights

National Institute on Drug Abuse (NIDA) conducting 3 trials (12%)
39 indications explored (Broad Platform)
pain (2 trials)
virtual reality (2 trials)
placebo (2 trials)
1
Indication
--
Phase 3 Trials
1
Priority Reviews
4
Years on Market

Details

Status
Discontinued
First Approved
2022-02-28
Patent Cliff
2031

Pro Metrics

Patent cliff and revenue data

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Routes
INTRAMUSCULAR, SUBCUTANEOUS
Dosage Forms
SOLUTION

Companies

Active Ingredient: NALOXONE HYDROCHLORIDE

NALOXONE HYDROCHLORIDE (AUTOINJECTOR) Approval History

2023
2024
2025
2026
Original
New Indication
New Form
Label Update
2 FDA actions from 2022 to 2023
Apr 2023 SUPPL
Mfg · Manufacturing (CMC)
Feb 2022 ORIGINAL Priority
Update · Type 5 - New Formulation or New Manufacturer

What NALOXONE HYDROCHLORIDE (AUTOINJECTOR) Treats

1 FDA approvals

Originally approved for its first indication in 2022 .

  • Other (1)
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Clinical Trial Registry

4 trials
Trial Sponsor ID Phase Status Title
NCT07459166 CS-1103-03 5UG3DA059286 Ph 2 not yet recruiting A Phase 2 Safety, Tolerability, PK, and Efficacy Study of CS-1103 Following Fentanyl Challenge With Naloxone Blockade
NCT04828005 results posted OPNT003-PD-001 Ph 1 completed Pharmacodynamic Evaluation of Intranasal Nalmefene
NCT04473950 results posted Z-1902 R21DA047520 Ph 1 terminated The Effect of Chronic Pain on Delay Discounting in Methadone Patients
NCT05338632 ROAR P21.112 Ph 1 recruiting Reversal of Opioid-induced Respiratory Depression With Opioid Antagonists
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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.

NALOXONE HYDROCHLORIDE (AUTOINJECTOR) FDA Label Details

View full patent landscape →
6 OB patents · 2 families · 24 international docs across 6 countries

NALOXONE HYDROCHLORIDE (AUTOINJECTOR) Patents & Exclusivity

Latest Patent: May 2031

Patents (6 active)

US10143792 Expires May 24, 2031
US10322239 Expires Feb 28, 2031
US9474869 Expires Feb 28, 2031
US8939943 Expires Feb 28, 2031
US9022022 Expires Feb 28, 2031
US9814838 Expires Feb 28, 2031
Source: FDA Orange Book

Pro Intelligence Preview

Deep insights for NALOXONE HYDROCHLORIDE (AUTOINJECTOR)

Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2031
  • 6 active patents

Trial Analysis

  • 26 total trials
  • Stage: Declining

Competitive Landscape

  • Competitor tracking
  • 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.

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