A Study to Evaluate Analgesic Efficacy and Safety of PRF-110 for Post-surgical Pain

December 15, 2023 updated by: PainReform LTD

A Phase 3, Randomized, Double-Blind, Saline Placebo- and Active-Controlled, Multicenter Study to Evaluate the Analgesic Efficacy and Safety of Intra-operative Administration of PRF-110 Following Unilateral Bunionectomy

PRF-110 is a viscous, yellowish clear oily solution of ropivacaine intended for administration into surgical sites to provide post-operative analgesia. The pharmacokinetic profile for PRF-110 suggests that its effect could last up to 72 hours. This is A Phase 3, Randomized, Double-Blind, Saline Placebo- and Active-Controlled, Multicenter Study to Evaluate the Analgesic Efficacy and Safety of Intra-operative Administration of PRF-110 Following Unilateral Bunionectomy

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

PRF-110 is a unique, sustained-release, oil-based solution formulation of ropivacaine intended for administration into surgical sites for the prevention of postoperative pain. The formulation is designed to have an effect for up to 72 hours. It is postulated that PRF-110 will improve postoperative pain management by providing prolonged pain relief at the surgical site; thereby, reducing the amount of systemic analgesia needed after surgery. The slow, local release of ropivacaine following administration of PRF-110 has been demonstrated in dissolution studies, in postoperative pain studies in animals, in an experimental pain study in human volunteers, and in an open-label Phase 2 hernia repair trial to result in very low plasma concentrations of drug, therefore reducing the probability of systemic adverse events. This is a randomized, double-blind study to evaluate the efficacy and safety of PRF-110 compared with saline placebo and with ropivacaine hydrochloride injection administered intraoperatively in subjects undergoing unilateral bunionectomy.

Study Type

Interventional

Enrollment (Estimated)

415

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Inclusion criteria:

Subjects must meet all of the following criteria to be eligible for inclusion into the study:

  1. Able to provide written informed consent prior to any study procedures.
  2. Able to communicate clearly with the Investigators and study staff.
  3. Males and females aged 18 years or older.
  4. Scheduled for elective primary unilateral first metatarsal bunionectomy surgery (osteotomy and internal fixation) with no ancillary procedures.
  5. Female subjects must be surgically sterile; or at least 2 years postmenopausal; or have a monogamous partner who is surgically sterile; or practicing doublebarrier contraception; or practicing abstinence (must agree to use double-barrier contraception in the event of sexual activity); or using an insertable, injectable, transdermal, or combination oral contraceptive approved by the FDA for greater than two months prior to screening and commit to the use of an acceptable form of birth control for the duration of the study and for 30 days after completion of the study.
  6. Negative alcohol breath/saliva test and urine drug screen for drugs of abuse at Screening and at Baseline. Subjects with positive results on the alcohol breath/saliva test or urine drug screen at Screening, and/or prior to surgery, will not be allowed to proceed in the study unless the results can be explained by a current prescription or acceptable over-the-counter medication as determined by the Investigator. Note that for those subjects who test positive for tetrahydrocannabinol (THC), if they are willing to abstain from use or consumption of THC-containing products from Screening thru last Follow-up Visit, they may be allowed to participate in the study.
  7. American Society of Anesthesiologists (ASA) Physical Status of I or II (see Appendix, Section 14.1).
  8. Body Mass Index (BMI) ≤35.

Exclusion Criteria:

subject will be excluded from the study if any of the following criteria are met:

  1. Has clinically significant allergies to an opioid, unless has subsequently tolerated other opioids and, in the opinion of the Investigator, could tolerate a rescue drug containing oxycodone.
  2. Has a known or suspected allergy to any local anesthetic or to acetaminophen.
  3. Has a known or suspected history of alcohol, opiate or other drug abuse or dependence within 12 months prior to screening.
  4. Is unable to refrain from alcohol consumption for a period beginning 24 hours prior to surgery through the end of the 72 -hour evaluation period.
  5. Has taken any analgesic or non-opioid pain medication other than acetaminophen (e.g., NSAIDs, cyclooxygenase-2 [COX 2] inhibitors) within 12 hours prior to surgery or any aspirin-containing product within 7 days of the Baseline assessments. Aspirin up to 325 mg once daily for cardiovascular prophylaxis is allowed.
  6. Has taken any opioid analgesics or used systemic steroids within 4 days of surgery.
  7. Has been using opiates or any non-steroidal anti-inflammatory drug chronically (more than 10 consecutive days) anytime over the past 3 months.
  8. Has used antipsychotics or antiepileptics within 30 days prior to surgery. Use of sedatives, hypnotics, antianxiety agents, and antidepressants (other than monoamine oxidase inhibitors [MAOIs]) are allowed if being used for a nonpain indication and at a stable dose within the previous 30 days.
  9. Has history of or positive test results for HIV or hepatitis B or C at Screening.
  10. Has any history of epilepsy, other than childhood febrile seizures, before the age of 6.
  11. Has any history of psychosis, current clinically significant symptomatic psychiatric disorder, or a history of suicide attempt in the past 10 years.
  12. Has taken herbal agents or nutraceuticals (e.g., chapparal, comfrey, germander, jin bu huan, kava, pennyroyal, skullcap, St. John's wort, or valerian) during any of the 7 days prior to surgery that could potentially confound the analgesic response in the Investigator's opinion.
  13. Has transaminase levels > 2 x ULN, or bilirubin level > 1.5 x ULN (unless Gilbert's syndrome), or estimated glomerular filtration rate (eGFR) < 60 mL/min. Has poorly controlled diabetes with hemoglobin A1c >7.5%.

15. Has any clinically significant condition including an acute or chronic painful physical restrictive condition or any other significant laboratory abnormality that would, in the opinion of the Investigator, confound study assessments or adversely affect subject safety. 16. Has received another investigational drug within 30 days of scheduled surgery.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: PRF-110
PRF-110 3.6% ropivacaine, to be applied into the surgical wound
Drug: Ropivacaine
A long acting formulation of ropivacaine
Placebo Comparator: Saline .9%
Saline .9%, to b be applied into the surgical wound
Drug: Ropivacaine
A long acting formulation of ropivacaine
Active Comparator: Ropivacaine
Ropivacaine Hydrochloride 0.5%, up to 10 mL, to be applied into the surgical site
Drug: Ropivacaine
A long acting formulation of ropivacaine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Measurement of patients pain levels as an indication for the analgesic efficacy of PRF-110
Time Frame: 72 hours
The primary objective of this study is to compare the analgesic efficacy of PRF-110 with placebo during the first 72 hours after completion of bunionectomy surgery by measuring pain levels using an 11-point Numerical Rating Scale (NRS)
72 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Comparison of opiate use to saline placebo
Time Frame: 72 hours
To compare post-surgery opioid consumption (in morphine milligram equivalents) over 72 hours for PRF-110 with that of saline placebo.
72 hours
Comparison of opiate use to ropivacaine HCL injection
Time Frame: 72 hours
To compare post-surgery opioid consumption through 72 hours for PRF-110 with that of ropivacaine injection.
72 hours
Measurement of patients pain levels of PRF-110 as compared to ropivacaine hydrochloride
Time Frame: 72 hours
Measurement of patients pain levels using an 11-point NRS in order to compare the analgesic efficacy of PRF-110 with ropivacaine hydrochloride (0=no pain and 10=worst pain imaginable) (0.5%) injection administered as an infiltration analgesic during the first 72 hours after completion of bunionectomy surgery.
72 hours
Percentage of opiate free subjects
Time Frame: 72 hours
To compare the percentage of subjects who were opioid free through 72 hours post-surgery for PRF-110 compared with that of ropivacaine injection.
72 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

PainReform LTD

Collaborators

Lotus Clinical Research, LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 13, 2023

Primary Completion (Estimated)

December 30, 2023

Study Completion (Estimated)

January 30, 2024

Study Registration Dates

First Submitted

November 1, 2022

First Submitted That Met QC Criteria

March 6, 2023

First Posted (Actual)

March 17, 2023

Study Record Updates

Last Update Posted (Estimated)

December 18, 2023

Last Update Submitted That Met QC Criteria

December 15, 2023

Last Verified

December 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PRF-110-103

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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