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A Trial to Assess the Safety and Efficacy of Topical Salbutamol in Healthy Volunteers. (SSCART)

Primary Purpose

Scarring

Status
Completed
Phase
Phase 1
Locations
United Kingdom
Study Type
Interventional
Intervention
Incision
Active gel
Placebo gel
Sponsored by
University Hospitals, Leicester
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Scarring

Eligibility Criteria

18 Years - 50 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Able, in the opinion of the investigator, and willing to give informed consent
  2. Aged 18 - 50 inclusive, with both arms
  3. Participants registered on The Over Volunteering Prevention System (TOPS) or equivalent in Leicester.
  4. Body mass index within the range 15.0-35.0 kg/m2. Inclusive (i.e. ≥ 15.0 and ≤ 35.0)
  5. In the opinion of the investigator, clinically acceptable results for the laboratory tests specified in the trial protocol (see Protocol Section 11.2). All laboratory tests must be performed within 28 days of the subject's first trial dose administration.
  6. Women of child bearing potential (WOCBP) must be using a highly effective means of contraception and agree to do so from at least the screening visit until trial end or completion of the trial.

Exclusion Criteria:

  1. On direct questioning, have evidence of Left/Right Confusion.
  2. On direct questioning and/or physical examination a history or evidence of keloid scarring.
  3. On direct questioning have a family history of keloid scarring.
  4. Tattoos or previous scars within 3cm of the area to be incised during the trial.
  5. Surgery in the area to be incised and have surgical scars within 3cm of this area.
  6. History of a bleeding disorder or who are receiving anti-coagulant or anti-platelet therapy.
  7. On direct questioning and physical examination, have evidence of any past or present clinically significant disease that may affect the endpoints of the trial. For example: Coagulation disorders, diabetes, immuno-mediated conditions or allergies (including allergic contact dermatitis).
  8. Subjects with a clinically significant skin disorder (dermatitis, eczema, psoriasis) that is chronic or currently active and which the Investigator considers will adversely affect the healing of the acute wounds or involves the areas to be examined in this trial.
  9. Any clinically significant medical condition or history that would impair wound healing including:

    • Rheumatoid arthritis.
    • Chronic renal impairment for their age.
    • Hepatic impairment (LFTs >3 times upper limit of normal).
    • Congestive heart failure.
    • Pre-existing ischemic heart disease
    • Pulmonary hypertension
    • Hypertrophic obstructive cardiomyopathy
    • Aortic stenosis
    • Current active malignancy or history of malignancy in the last 5 years.
    • Immunosuppression or chemotherapy within the last 12 months.
    • A history of radiotherapy at the areas to be studied.
    • Diabetes mellitus.
    • Subjects with proven diagnosis of thyroid disease
  10. A history of hypersensitivity to any of the drugs or dressings used in this trial
  11. Currently taking other prescribed treatments:

    • All corticosteroids, whether topically applied or systemic;
    • Any salbutamol containing preparations
    • Other beta-agonists, such as salmeterol
    • Any beta-blockers, such as propranolol
    • Other beta antagonists
    • Adrenaline
  12. Undergoing investigations or changes in management for an existing medical condition.
  13. History of drug abuse, including cocaine, amphetamines, methamphetamines, opiates or benzodiazepines.
  14. In the opinion of the investigator, are unlikely to complete the trial for whatever reason.
  15. Any clinically significant neurological impairment or disease, including body dysmorphia.
  16. At entry into the trial, any active infection.
  17. Pregnant or lactating or planning to become pregnant during the duration of the trial.
  18. Not involved with any other clinical trial of medicinal product at the time of consent or 3 months prior.

Sites / Locations

  • Leicester Royal Infirmary

Arms of the Study

Arm 1

Arm 2

Arm Type

Placebo Comparator

Experimental

Arm Label

Placebo Gel

Active Gel

Arm Description

Each participant will be allocated to only one dosing group. The treatments will be paired anatomically so that for each pair of sites, one closed incision site will receive the active gel and the other placebo.

Each participant will be allocated to only one dosing group. The treatments will be paired anatomically so that for each pair of sites, one closed incision site will receive the active gel and the other placebo.

Outcomes

Primary Outcome Measures

Peak plasma concentration
The primary trial endpoint will be the peak plasma concentration of salbutamol at day 0.

Secondary Outcome Measures

Peak Plasma concentration 2
The peak plasma concentration of salbutamol at day 10.
Efficacy of treatment using the Global Scar Comparison Scale
Improvement in scar appearance will be assessed using a global appearance scale, referred to as the "Global Scar Comparison Scale" (GSCS), which seeks to assess which one of a pair of scars is visually improved compared to the other. The scale is based on a 200mm Visual Analogue Scale, with "0"mm at the centre indicating no difference between the scars. The extremes of the scale -100mm to +100mm are reserved for one scar becoming imperceptible compared to the other. The assessment will be performed by both the patient and investigator independently at months 7, 9 and 12.
Efficacy of treatment using the Patient Observer Scar Assessment Scale
Improvement in scar appearance will be assessed using the "Patient and Observer Scar Assessment Scale" (POSAS) which is a composite scale made up of sub-scales, that measure 12 items numerically (6 by the patient; scar pain, scar itch, colour differences, scar stiffness, scar thickness and scar irregularity) and six items scored by the investigator (vascularity, pigmentation, thickness, relief, pliability and surface area). The patient sub-scales are scored 1-10 where 1="no, not at all" and 10 = "yes, very much". The clinical sub-scores are also scored 1-10 with 1=normal skin and 10=worst scar imaginable. POSAS is calculated as a total score of all sub-scores. The assessment will be performed by both the patient and investigator independently at months 7, 9 and 12.

Full Information

First Posted
February 26, 2018
Last Updated
March 25, 2020
Sponsor
University Hospitals, Leicester
Collaborators
University of Leicester, Medical Research Council
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1. Study Identification

Unique Protocol Identification Number
NCT03514615
Brief Title
A Trial to Assess the Safety and Efficacy of Topical Salbutamol in Healthy Volunteers.
Acronym
SSCART
Official Title
A Double Blind, Placebo Controlled, Randomised Dose Escalation Trial to Investigate the Safety and Efficacy of Topical Salbutamol in the Improvement of Scar Appearance When Applied to Approximated Wound Margins in Healthy Volunteers.
Study Type
Interventional

2. Study Status

Record Verification Date
March 2020
Overall Recruitment Status
Completed
Study Start Date
January 10, 2018 (Actual)
Primary Completion Date
July 20, 2018 (Actual)
Study Completion Date
July 1, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
University Hospitals, Leicester
Collaborators
University of Leicester, Medical Research Council

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This will be a single centre, double-blind, placebo (vehicle) controlled, randomised, dose escalation trial. Three concentrations of topical salbutamol gel will be compared, in a group-wise fashion, with a placebo administration at one incision site on each arm of the trial subjects. Each participant will be allocated to only one dosing group. The treatments will be paired anatomically so that for each pair of sites, one closed incision site will receive the active substance, while the other will receive placebo.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Scarring

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
45 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Placebo Gel
Arm Type
Placebo Comparator
Arm Description
Each participant will be allocated to only one dosing group. The treatments will be paired anatomically so that for each pair of sites, one closed incision site will receive the active gel and the other placebo.
Arm Title
Active Gel
Arm Type
Experimental
Arm Description
Each participant will be allocated to only one dosing group. The treatments will be paired anatomically so that for each pair of sites, one closed incision site will receive the active gel and the other placebo.
Intervention Type
Procedure
Intervention Name(s)
Incision
Intervention Description
A skin incision will be made on the medial aspect of the upper arm.
Intervention Type
Drug
Intervention Name(s)
Active gel
Intervention Description
The incision site on one arm will be dosed with the active gel.
Intervention Type
Drug
Intervention Name(s)
Placebo gel
Intervention Description
The incision site on the other arm will be dosed with placebo gel.
Primary Outcome Measure Information:
Title
Peak plasma concentration
Description
The primary trial endpoint will be the peak plasma concentration of salbutamol at day 0.
Time Frame
24 hours
Secondary Outcome Measure Information:
Title
Peak Plasma concentration 2
Description
The peak plasma concentration of salbutamol at day 10.
Time Frame
10 days
Title
Efficacy of treatment using the Global Scar Comparison Scale
Description
Improvement in scar appearance will be assessed using a global appearance scale, referred to as the "Global Scar Comparison Scale" (GSCS), which seeks to assess which one of a pair of scars is visually improved compared to the other. The scale is based on a 200mm Visual Analogue Scale, with "0"mm at the centre indicating no difference between the scars. The extremes of the scale -100mm to +100mm are reserved for one scar becoming imperceptible compared to the other. The assessment will be performed by both the patient and investigator independently at months 7, 9 and 12.
Time Frame
12 months
Title
Efficacy of treatment using the Patient Observer Scar Assessment Scale
Description
Improvement in scar appearance will be assessed using the "Patient and Observer Scar Assessment Scale" (POSAS) which is a composite scale made up of sub-scales, that measure 12 items numerically (6 by the patient; scar pain, scar itch, colour differences, scar stiffness, scar thickness and scar irregularity) and six items scored by the investigator (vascularity, pigmentation, thickness, relief, pliability and surface area). The patient sub-scales are scored 1-10 where 1="no, not at all" and 10 = "yes, very much". The clinical sub-scores are also scored 1-10 with 1=normal skin and 10=worst scar imaginable. POSAS is calculated as a total score of all sub-scores. The assessment will be performed by both the patient and investigator independently at months 7, 9 and 12.
Time Frame
12 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
50 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Able, in the opinion of the investigator, and willing to give informed consent Aged 18 - 50 inclusive, with both arms Participants registered on The Over Volunteering Prevention System (TOPS) or equivalent in Leicester. Body mass index within the range 15.0-35.0 kg/m2. Inclusive (i.e. ≥ 15.0 and ≤ 35.0) In the opinion of the investigator, clinically acceptable results for the laboratory tests specified in the trial protocol (see Protocol Section 11.2). All laboratory tests must be performed within 28 days of the subject's first trial dose administration. Women of child bearing potential (WOCBP) must be using a highly effective means of contraception and agree to do so from at least the screening visit until trial end or completion of the trial. Exclusion Criteria: On direct questioning, have evidence of Left/Right Confusion. On direct questioning and/or physical examination a history or evidence of keloid scarring. On direct questioning have a family history of keloid scarring. Tattoos or previous scars within 3cm of the area to be incised during the trial. Surgery in the area to be incised and have surgical scars within 3cm of this area. History of a bleeding disorder or who are receiving anti-coagulant or anti-platelet therapy. On direct questioning and physical examination, have evidence of any past or present clinically significant disease that may affect the endpoints of the trial. For example: Coagulation disorders, diabetes, immuno-mediated conditions or allergies (including allergic contact dermatitis). Subjects with a clinically significant skin disorder (dermatitis, eczema, psoriasis) that is chronic or currently active and which the Investigator considers will adversely affect the healing of the acute wounds or involves the areas to be examined in this trial. Any clinically significant medical condition or history that would impair wound healing including: Rheumatoid arthritis. Chronic renal impairment for their age. Hepatic impairment (LFTs >3 times upper limit of normal). Congestive heart failure. Pre-existing ischemic heart disease Pulmonary hypertension Hypertrophic obstructive cardiomyopathy Aortic stenosis Current active malignancy or history of malignancy in the last 5 years. Immunosuppression or chemotherapy within the last 12 months. A history of radiotherapy at the areas to be studied. Diabetes mellitus. Subjects with proven diagnosis of thyroid disease A history of hypersensitivity to any of the drugs or dressings used in this trial Currently taking other prescribed treatments: All corticosteroids, whether topically applied or systemic; Any salbutamol containing preparations Other beta-agonists, such as salmeterol Any beta-blockers, such as propranolol Other beta antagonists Adrenaline Undergoing investigations or changes in management for an existing medical condition. History of drug abuse, including cocaine, amphetamines, methamphetamines, opiates or benzodiazepines. In the opinion of the investigator, are unlikely to complete the trial for whatever reason. Any clinically significant neurological impairment or disease, including body dysmorphia. At entry into the trial, any active infection. Pregnant or lactating or planning to become pregnant during the duration of the trial. Not involved with any other clinical trial of medicinal product at the time of consent or 3 months prior.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Graham Johnston
Organizational Affiliation
University of Leicester
Official's Role
Principal Investigator
Facility Information:
Facility Name
Leicester Royal Infirmary
City
Leicester
Country
United Kingdom

12. IPD Sharing Statement

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A Trial to Assess the Safety and Efficacy of Topical Salbutamol in Healthy Volunteers.

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