Sustained Release Lidocaine for the Treatment of Postoperative Pain

NCT ID: NCT05193227

Last Updated: 2025-02-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-10-27

Study Completion Date

2026-05-27

Brief Summary

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In this study, the investigators are testing a new formulation of lidocaine for its suitability in managing postoperative pain after pelvic (circumcision, inguinal, scrotal), perineal (hemorrhoidectomy) or perianal (fistulotomy) incisions. The new formulation ST-01 is a sustained release lidocaine formulation and is expected to provide pain relief over multiple days. Currently, the drug lidocaine is not available as an injectable slow-release formulation.

Detailed Description

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The purpose of this study is to find out if a new sustained release lidocaine polymer formulation can provide effective postoperative pain control after surgery and lower opioid consumption.

A single dose of this new formulation ST-01 is administered as peri-neural injection and incisional deposition. The procedure is very comparable to the current standard of care procedure, where lidocaine solution (Lidocaine HCl 1% USP) is administered. However, the polymer solution ST-01 stays in the area of injection longer by forming a soft implant and could provide longer pain control.

The investigators' primary objective is to evaluate the efficacy of an injection of ST-01 to reduce subject-reported postoperative pain after surgery compared to standard of care. Secondary objectives are to determine the safety, frequency and total intake of opioid analgesic medication and frequency and total intake of non-opioid analgesic medication.

The clinical study is conducted at the Vancouver Prostate Centre and St. Paul's Hospital. Potential participants will undergo a screening period and will then be enrolled and randomized to either receive treatment (ST-01) or Control (Standard of Care) after surgery. Up to 120 study subjects will be enrolled and monitored over 30 days after surgery. Subjects will report their postsurgical pain and analgesic medication taken.

The primary endpoint and other continuous secondary endpoints will be compared with independent two-sample t-test if normally distributed and Wilcoxon rank-sum test if not normally distributed.

Conditions

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Postoperative Pain Postsurgical Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Treatment (ST-01)

Administration of ST-01 as single-dose into the cutaneous, subcutaneous and fascia region of the surgical site and/or as nerve block.

Group Type EXPERIMENTAL

ST-01

Intervention Type DRUG

Administration of up to 8 mL ST-01 (70 mg/mL lidocaine)

Control (Standard of Care)

Administration of Control (Lidocaine Hydrochloride Injection USP Xylocaine® or Bupivacaine Hydrochloride Injection USP Marcaine®) as single-dose into the cutaneous, subcutaneous and fascia region of the surgical site and/or as nerve block.

Group Type ACTIVE_COMPARATOR

Control (Lidocaine Hydrochloride Injection USP Xylocaine® or Bupivacaine Hydrochloride Injection USP Marcaine®)

Intervention Type DRUG

Administration of up to 3 mg/kg bupivacaine hydrochloride injection (0.25%) or up to 4.5mg/kg lidocaine hydrochloride injection (0.5-1%)

Interventions

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ST-01

Administration of up to 8 mL ST-01 (70 mg/mL lidocaine)

Intervention Type DRUG

Control (Lidocaine Hydrochloride Injection USP Xylocaine® or Bupivacaine Hydrochloride Injection USP Marcaine®)

Administration of up to 3 mg/kg bupivacaine hydrochloride injection (0.25%) or up to 4.5mg/kg lidocaine hydrochloride injection (0.5-1%)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Any sex, aged ≥ 19 years
* Indication to undergo an operation with a planned pelvic incision
* Able and willing to provide informed consent
* Stated willingness to comply with all study procedures and availability for the duration of the study
* If sexually active, is willing to use adequate birth control methods to prevent pregnancy over the course of the study

Exclusion Criteria

* History of chronic pain conditions associated with the use of opioids or steroids
* Known allergic reactions to any components of the investigational product
* Active infection involving the surgical site
* Any contraindication to local anesthesia with lidocaine (e.g., known hypersensitivity to anesthetics of the amide type, known hypokalemia, complete heart block, anticoagulants (ASA permitted) antiarrhythmic medication)
* Use of prohibited medications (quinidine, procainamide, disopyramide, lidocaine, mexiletine, flecainide, propafenone, amiodarone, dronedarone, ibutilide, dofetilide, sotalol, vernakalant)
* Has participated in another clinical trial within 3 months prior to the Screening Visit or is planning to participate in another clinical trial during this trial period
* Has any other surgical or medical condition that, in the judgment of the clinical Investigator might warrant exclusion or be contraindicated for safety reason
Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Sustained Therapeutics Inc.

INDUSTRY

Sponsor Role collaborator

University of British Columbia

OTHER

Sponsor Role lead

Responsible Party

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David Harriman

Assistant Professor, Department of Urologic Sciences

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Graeme Boniface, PhD

Role: STUDY_DIRECTOR

Sustained Therapeutics Inc.

Locations

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Vancouver Prostate Centre

Vancouver, British Columbia, Canada

Site Status RECRUITING

St. Pauls Hospital

Vancouver, British Columbia, Canada

Site Status RECRUITING

Countries

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Canada

Central Contacts

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Lesley Parker

Role: CONTACT

604 875 5594

Graeme Boniface

Role: CONTACT

604-875-5594

Facility Contacts

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ST-CP-201 Study Clinical Trials Coordinator

Role: primary

604-875-4111 ext. 67898

ST-CP-201 Study Clinical Trials Coordinator

Role: primary

604 806 8711

Other Identifiers

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H20-00317

Identifier Type: -

Identifier Source: org_study_id

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