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New oxycodone combo aims to curb abuse – first human test underway

NCT ID NCT06500793

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage trial tests how a new form of oxycodone (PF614) combined with nafamostat behaves in the body. Fifty-four healthy adults will receive single doses to measure drug levels and safety. The goal is to see if this combination can reduce misuse potential while still providing pain relief.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
PF614 (oxycodone prodrug) and nafamostat mesylate
What this could lead to
If successful, this could help develop a safer painkiller that reduces abuse potential by combining a prodrug with a blocker.
What could go wrong
This is a very early Phase 1 study in only 54 healthy people, so it cannot prove the drug works for pain or is safe long-term. Side effects are possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 54 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2024

Expected to finish

Apr 2027

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Must be able to understand a written informed consent, which must be obtained prior to initiation of study procedures. 2. Must be willing and able to comply with all study requirements. 3. Aged 18 to 55 years, inclusive, at time of signing informed consent. 4. Must agree to use an adequate method of contraception (as defined in Section 9.4). 5. Healthy males or non pregnant, non lactating healthy females. 6. Body mass index (BMI) of 18.0 to 32.0 kg/m2 as measured at screening or, if outside the range, considered not clinically significant by the investigator. 7. Minimum weight of 50 kg at screening. Exclusion Criteria: 1. Serious adverse reaction or serious hypersensitivity to any drug or formulation excipients. 2. Presence or history of clinically significant allergy requiring treatment, as judged by the investigator. Hay fever is allowed unless it is active. 3. Significant serious skin disease, including rash, food allergy, eczema, psoriasis, or urticaria. 4. History of clinically significant cardiovascular, renal, hepatic, chronic respiratory or GI disease (Part 1 only: except cholecystectomy), gastrointestinal surgery (e.g. gastric bypass, gastric banding, colectomy), or neurological or psychiatric disorder, as judged by the investigator. 5. Subjects with a history of seizures. 6. Subjects with history of GI bleeding (excluding hemorrhoids) or history of peptic or duodenal ulcer disease. 7. Subjects with a history of bleeding disorders or coagulopathy. 8. Subjects with any personal history of arrhythmias or family history of significant cardiac disease (i.e., sudden death in first degree relative; myocardial infarction prior to 50 years old). 9. Parts 2 and 3 only: Subjects with a history of cholecystectomy or gall stones. 10. Parts 2 and 3 only: Subjects with a history of opioid intolerance or hypersensitivity based on previous experience receiving any opioid analgesic 11. Have poor venous access that limits phlebotomy. 12. Clinically significant abnormal clinical chemistry, hematology, coagulation or urinalysis as judged by the investigator (laboratory parameters are listed in Appendix 1). Subjects with Gilbert's Syndrome are allowed. 13. Subjects with a platelet count \<150,000/µL or international normalized ratio \>1.1 at screening. 14. Subjects with hemoglobin \<LLN at screening and/or first admission. 15. Subjects with a QT interval corrected using Fridericia's formula (QTcF) above 450 msec at screening and/or first admission. 16. Positive hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab) or human immunodeficiency virus (HIV) antibody results. 17. Positive serum pregnancy test at screening or first admission. Those who are pregnant or lactating will be excluded. 18. Subjects who have received any IMP in a clinical research study within 5 half lives or within 30 days prior to first dose. However, in no event shall the time between last receipt of IMP and first dose be less than 30 days. 19. Subjects who have previously been administered IMP in this study. 20. Subjects who are taking, or have taken, any prescribed or over the counter drug or herbal remedies (other than up to 4 g per day acetaminophen, HRT or hormonal contraception) in the 14 days before study treatment administration (see Section 11.4). Exceptions may apply on a case by case basis, if considered not to interfere with the objectives of the study, as determined by the investigator. 21. Subjects with an anticipated need for requiring aspirin, non-steroidal anti-inflammatory drugs, or anticoagulants in the 14 days after administration of the IMP. 22. History of any drug or alcohol abuse in the past 2 years. 23. Regular alcohol consumption in males \>21 units per week and females \>14 units per week (1 unit = 12 oz 1 bottle/can of beer, 1 oz 40% spirit, or 5 oz glass of wine). 24. A confirmed positive alcohol urine test at screening or first admission. 25. Current smokers and those who have smoked within the last 12 months. 26. Current users of e-cigarettes and nicotine replacement products and those who have used these products within the last 12 months. 27. A confirmed positive urine cotinine test at screening or first admission. 28. Positive drug screen test result at screening or first admission (drug of abuse tests are listed in Appendix 1). 29. Male subjects with pregnant or lactating partners. 30. Donation of blood within 2 months or donation of plasma within 7 days prior to first dose of study treatment. 31. Subjects who are, or are immediate family members of, a study site or sponsor employee. 32. Failure to satisfy the investigator of fitness to participate for any other reason.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Quotient Sciences

    RECRUITING

    Miami, Florida, 33126, United States

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