Last Updated: June 25, 2026

CLINICAL TRIALS PROFILE FOR NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE


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All Clinical Trials for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00734461 ↗ Study to Evaluate the Subjective Effects of PTI-801 in Non-Physically Dependent Subjects With a History of Drug Abuse Completed Pain Therapeutics Phase 2 2007-08-01 This is a single-center, randomized, 7-way crossover, double-blind, active and placebo-controlled study to evaluate the subjective effects of oxycodone combined with ultra-low dose naltrexone in comparison to oxycodone alone in non-physically dependent subjects with a history of opioid abuse. Approximately 14 subjects will be randomized to one of fourteen sequences selected from a balanced 7x7 Latin square design and its mirror image.
NCT01428583 ↗ Safety Study of Oxycodone Hydrochloride and Naltrexone Hydrochloride Extended-Release Capsules in Subjects With Moderate to Severe Chronic Noncancer Pain Completed Pfizer Phase 3 2010-12-01 The study will provide information to assess the benefits versus risks of extended exposure to oxycodone HCl and naltrexone HCl extended-release capsules in a chronic noncancer pain population.
NCT01456507 ↗ Healthy Volunteers Study to Estimate the Effects of Food on the Bioavailability of Oxycodone and Naltrexone/6- Β -Naltrexol From a Extended Release Formulation of Oxycodone With Sequestered Naltrexone Completed Pfizer Phase 1 2011-10-01 The purpose of this study is to estimate the effects of food and of sprinkling ALO-02 pellets on applesauce on the bioavailability of oxycodone and naltrexone/6- beta-naltrexol from an extended release pellets-in-capsule formulation of oxycodone 40 mg with sequestered naltrexone 4.8 mg.
NCT01559454 ↗ Buprenorphine and Methadone for Opioid-dependent Chronic Back Pain Patients Completed State University of New York at Buffalo Phase 4 2012-02-01 Chronic pain patients are treated with prescription opioids and many exhibit opioid addiction. Currently, there are no evidence-based guidelines to better manage patients with chronic pain and coexistent opioid addiction. This study compares 6-months buprenorphine and methadone treatment in these patients. The investigators hypothesize that both buprenorphine and methadone treatment will reduce pain and addiction behaviors and increase functioning in these patients.
NCT01571362 ↗ A Research Study of an Investigational Drug ALO-02 (Oxycodone Hydrochloride and Naltrexone Hydrochloride) in Patients With Moderate to Severe Chronic Low Back Pain Completed Pfizer Phase 3 2012-06-01 The primary objective of the study is to determine the analgesic efficacy and safety of ALO-02 extended-release capsules, when compared to placebo, in subjects with moderate to severe chronic low back pain.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE

Condition Name

Condition Name for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Intervention Trials
Healthy 9
Low Back Pain 2
Pharmacokinetics 2
Hyperalgesia 1
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Condition MeSH

Condition MeSH for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Intervention Trials
Low Back Pain 2
Back Pain 2
Opioid-Related Disorders 2
Substance Withdrawal Syndrome 1
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Clinical Trial Locations for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE

Trials by Country

Trials by Country for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Location Trials
United States 64
Canada 2
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Trials by US State

Trials by US State for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Location Trials
New York 5
Maryland 5
Connecticut 4
Texas 4
Florida 4
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Clinical Trial Progress for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE

Clinical Trial Phase

Clinical Trial Phase for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Clinical Trial Phase Trials
PHASE2 1
PHASE1 1
Phase 4 2
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Clinical Trial Status

Clinical Trial Status for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Clinical Trial Phase Trials
Completed 15
RECRUITING 2
TERMINATED 2
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Clinical Trial Sponsors for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE

Sponsor Name

Sponsor Name for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Sponsor Trials
Pfizer 9
Ensysce Biosciences 3
Pain Therapeutics 3
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Sponsor Type

Sponsor Type for NALTREXONE HYDROCHLORIDE; OXYCODONE HYDROCHLORIDE
Sponsor Trials
Industry 20
Other 9
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Last updated: April 28, 2026

Naltrexone HCl and Oxycodone HCl: Clinical Trial Update, Market Assessment, and 2025–2035 Projections

What do recent clinical trial patterns show for naltrexone hydrochloride?

Clinical development focus

Naltrexone HCl is used in two main therapeutic contexts:

  • Alcohol Use Disorder (AUD)
  • Opioid Use Disorder (OUD) (including relapse prevention)

Clinical activity in recent years has been dominated by:

  • Oral naltrexone formulations (often for AUD and relapse prevention in OUD)
  • Investigational regimens combining naltrexone with other agents or leveraging extended-release formats (including platform studies that compare tolerability, adherence, and relapse outcomes)

Trial design signals investors watch

Across naltrexone programs, the most common decision points are:

  • Time to relapse or return to heavy drinking
  • Reduction in cravings or improved abstinence duration
  • Adherence and discontinuation rates (naltrexone is adherence-sensitive because it is typically taken daily in oral regimens)
  • Safety endpoints tied to hepatic function (especially in AUD populations with comorbid liver disease)

Regimen and endpoint alignment

Naltrexone trials typically align with endpoints that shorten read-through time for commercial valuation:

  • Relapse frequency and abstinence metrics for AUD
  • Treatment retention and opioid use reduction for OUD
  • Adverse events driving dose interruptions (nausea is the most frequently cited tolerability barrier in oral naltrexone studies) [1]

What do recent clinical trial patterns show for oxycodone hydrochloride?

Clinical development focus

Oxycodone HCl sits in a mature but still evolving landscape across:

  • Pain management (acute and chronic)
  • Long-acting opioid formulations and abuse-deterrent strategies
  • Breakthrough pain regimens that fit opioid stewardship programs

Clinical activity in oxycodone has shifted from “new mechanism” to “new formulation performance”:

  • Extended-release profiles that reduce peak-trough variability
  • Abuse-deterrent technologies that aim to reduce insufflation or extraction
  • Real-world tolerability and persistence studies under restricted opioid prescribing frameworks

Trial design signals investors watch

Decision points most frequently used by sponsors and payers include:

  • Functional pain endpoints (improved activity, sleep impact, and opioid-sparing where feasible)
  • Withdrawal rates and discontinuation (tolerability)
  • Safety endpoints tied to respiratory depression risk stratification
  • Risk mitigation adherence metrics in post-approval settings

What is the current market structure for naltrexone HCl?

Demand drivers

Naltrexone demand is tied to:

  • Growth in diagnosed AUD and OUD populations
  • Expansion of medication-assisted treatment (MAT) and relapse prevention pathways
  • Payer policies that favor long-term adherence and measurable relapse reduction

Competitive landscape

The market is characterized by:

  • Generic oral naltrexone supply for AUD and relapse prevention use-cases
  • Brand competition historically centered on extended-release approaches and combination regimens
  • Local market differences in formulary inclusion and prior authorization requirements

Commercial reality

For oral naltrexone, pricing power is typically limited by generic competition and substitution. The economic center of gravity usually shifts to:

  • Adherence-driven outcomes
  • Conversion from screening to treatment
  • Reduced discontinuation in payer-approved patient cohorts

What is the current market structure for oxycodone HCl?

Demand drivers

Oxycodone is demand-led by:

  • High prevalence of chronic pain and post-surgical pain
  • Continued physician reliance on opioid analgesics despite tighter controls
  • Formulary dynamics that reward abuse-deterrent and optimized-release profiles

Constraint profile

The oxycodone market is shaped by:

  • Regulatory and prescribing controls
  • Intensified monitoring and risk management programs
  • Litigation and payer scrutiny that can reduce net realizations and access in some settings

Where value concentrates

Even with mature penetration, commercially significant pockets typically include:

  • Chronic pain subpopulations with stable benefit-risk profiles
  • Patients requiring long-acting coverage with reduced early withdrawal
  • Settings that mandate or prefer abuse-deterrent products

How should investors model revenues and pipeline value for naltrexone HCl (2025–2035)?

Market baseline assumptions

Because naltrexone is largely generic for oral use, revenue growth generally depends on volume and access rather than price. Modeling should emphasize:

  • Treated patient growth (screening and MAT adoption)
  • Treatment persistence improvements
  • Switching from other AUD relapse strategies where naltrexone has formulary preference

Projection framework

Use a three-factor model:

  1. Patient pool growth
    • AUD and OUD treated population expansions
  2. Share shift
    • Gains driven by formulary inclusion, adherence programs, and payer incentives
  3. Retention effect
    • Lower discontinuation improves effective treated months and average patient revenue

2015–2024 context for market logic

Naltrexone outcomes trials have reinforced that adherence and relapse endpoint improvements are the main levers for adoption in OUD and AUD settings [1]. This supports a projection where sustained volume growth is more realistic than substantial pricing growth.


How should investors model revenues and pipeline value for oxycodone HCl (2025–2035)?

Market baseline assumptions

For oxycodone, revenue models should incorporate:

  • Volume sensitivity to prescribing controls
  • Net price pressure from payer controls and genericization
  • Offset via formulation upgrades that improve tolerability, persistence, and abuse-deterrent acceptance

Projection framework

A four-factor model fits the oxycodone economics better:

  1. Prescribing volume
    • Impact of stewardship policies and reduced incident prescribing
  2. Net price
    • Formulary and PBM dynamics
  3. Product mix
    • Share gains in optimized-release or abuse-deterrent categories
  4. Safety-driven discontinuations
    • Changes in withdrawal rates under stewardship

2015–2024 context for market logic

Oxycodone’s clinical and commercial differentiation has increasingly depended on release kinetics and abuse-deterrent performance rather than mechanism changes, consistent with trial and regulatory trends in opioid formulations [2].


What do patent and exclusivity dynamics imply for near-term competitive intensity?

Naltrexone HCl

Oral naltrexone is mostly exposed to generic competition. Where exclusivity still matters is:

  • Extended-release formats
  • Fixed combinations or novel dosing regimens
  • Formulation patents tied to release or tolerability

Oxycodone HCl

Oxycodone’s patent value tends to reside in:

  • Abuse-deterrent and formulation technology
  • Device or method-of-use protection
  • Extended-release composition and manufacturing IP

This structure tends to keep competition intense and pushes differentiation toward formulation and risk mitigation outcomes [2].


2025–2035 Market Projection Summary

Naltrexone HCl: expected direction

  • Growth is driven by increased treated populations and better persistence, not by broad pricing uplift.
  • The strongest upside sits in:
    • Improved adherence and reduced discontinuation
    • Formulary gains under AUD and OUD treatment pathways
  • The highest risk sits in:
    • Continued generic price compression
    • Formulary displacement by alternative AUD/OUD medications

Oxycodone HCl: expected direction

  • Growth depends on mix-shift toward optimized-release and abuse-deterrent products.
  • The largest upside sits in:
    • Persistence and reduced early discontinuation
    • Products that align with payer opioid stewardship requirements
  • The largest risk sits in:
    • Continued prescribing restrictions that reduce volume
    • Net price pressure from PBMs and competition

Key Takeaways

  • Naltrexone HCl development and adoption are primarily driven by adherence-linked relapse outcomes in AUD and OUD, with oral therapy constrained by generic competition and limited pricing power [1].
  • Oxycodone HCl market performance is driven by formulation mix, risk mitigation, and persistence under opioid stewardship rules, with net price and prescribing volume exposed to policy pressure [2].
  • 2025–2035 models should emphasize patient volume and retention for naltrexone, and prescribing volume plus product mix (abuse-deterrent/optimized release) for oxycodone.
  • Differentiation value is higher in formulation and dosing strategy than in new mechanism for both molecules, given mature therapeutic categories and intense generic competition.

FAQs

1) Which molecule has more pricing resilience, naltrexone or oxycodone?

Naltrexone typically has weaker pricing resilience for oral use because of generic competition. Oxycodone’s pricing is also pressured, but formulation mix (including abuse-deterrent and optimized-release positioning) can preserve net realizations in accepted segments [1,2].

2) What endpoints most influence adoption for naltrexone trials?

Time to relapse, abstinence duration for AUD, treatment retention, and opioid-use reduction for OUD dominate sponsor and payer decision frameworks, with discontinuation and tolerability central to real-world adoption [1].

3) What matters most in oxycodone clinical programs today?

Release profile, tolerability and persistence, and safety/risk management performance under stewardship programs influence value more than mechanism novelty [2].

4) Where is the highest commercial upside for naltrexone over 2025–2035?

Increases in treated patient volume that convert into sustained adherence, plus formulary access in AUD and OUD pathways, rather than broad price gains [1].

5) Where is the highest commercial upside for oxycodone over 2025–2035?

Product mix shift toward categories that meet payer requirements, reduce abuse-related barriers, and support higher persistence in chronic pain settings [2].


References

  1. U.S. Food and Drug Administration. Naltrexone hydrochloride prescribing information (package insert) and related labeling. FDA.
  2. U.S. Food and Drug Administration. Abuse-deterrent opioid formulations and opioid risk management resources (regulatory and guidance documents relevant to oxycodone formulation and risk mitigation). FDA.

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