A Phase 2/3 interventional study of IP1 control cream (Vehicle base) and IP2 - 0.5% w/w FS2 in Burn Scar and Burn Wound, sponsored by Birch BioMed Inc. Recruiting at 2 sites in Canada. Open to participants aged 12 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-09-30.
Sponsored by Birch BioMed Inc · Phase 2/3, Interventional, and Basic science
The goal of this study is to see how an ingredient called kynurenic acid (which we named "FS2") affects scar formation in people with burn injuries that need skin graft surgery. A cream with FS2 will be used on both the area where the skin graft was placed and the area where the skin was taken (donor site). The cream will be applied after the skin has healed. This study will help us understand if FS2 is safe and effective for mitigating skin scar formation in burn patients.
For the first 90 days of the study, neither the patient nor the investigator will know which cream is being used: either the control cream (IP1) or the treatment cream (IP2), which contains 0.5% FS2. The assigned study product will be applied to the donor site and the skin graft site. After the first 90 days, all patients will use the FS2 cream for another 90 days in an open-label period where everyone knows they are receiving FS2.
The graft and donor sites will be photographed and assessed (POSAS and VSS), scored and recorded at the initial visit and again at every assessment visit thereafter.
An interim analysis will take place when about half of the participants (36 people) have finished their Day 90 visit. Based on the results, the study may continue as planned with the two-treatment, blinded design, or it may switch to an open-label format where all patients (those already in the study or newly enrolled) will use the FS2 cream.
Oversight - Human Subjects Protection Review section continued:
Site #02 (Edmonton) Approval Number: Pro00151882 Board Name: HREB - Biomedical Panel Board Affiliation: HREB - University of Alberta Board Contact Information: 780-492-8320 (Phone), vnadeau@ualberta.ca (Email)
905 studies on the registry are indexed under Burns; 164 are open to participants now.
This study's planned enrollment of 70 is above the median of 40 across 663 interventional studies indexed under Burns.
Browse Burns studies →This is the only study on the registry with Birch BioMed Inc as lead sponsor.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The wound site (injury)
Drug: IP1 control cream (Vehicle base) · Drug: IP2 - 0.5% w/w FS2
A Surgical wound
Drug: IP1 control cream (Vehicle base) · Drug: IP2 - 0.5% w/w FS2
Without FS2
FS2 in pharmaceutical compounding base
Scar condition of the skin grafted wound on Day 90 as assessed by VSS
To evaluate the effect of 90-day FS2 cream use, compared to control, on clinician-assessed scar condition assessed by Vancouver Scar Scale (VSS) at the skin grafted wound (Study Arm 1)
Time frame: 90 days
Scar condition of the donor skin graft harvest site on Day 90 as assessed by VSS
To evaluate the effect of 90-day FS2 cream use, compared to control, on clinician-assessed scar condition assessed by VSS at the donor skin graft harvest site (Study Arm 2)
Time frame: 90 days
Scar condition of the skin graft wound on Day 28 and Day 60 as assessed by VSS
To evaluate the effect of 28- and 60-day FS2 cream use, compared to control, on clinician-assessed scar condition assessed by VSS at: skin grafted wound (Study Arm 1)
Time frame: Day 28 and Day 60
Scar condition of the donor skin graft harvest site on Day 28 and Day 60 as assessed by VSS
To evaluate the effect of 28- and 60-day FS2 cream use, compared to control, on clinician-assessed scar condition assessed by VSS at: donor skin graft harvest site (Study Arm 2)
Time frame: Day 28 and Day 60
Scar condition of the skin grafted wound on Day 28, Day 60, and Day 90 as assessed by the Observer component of POSAS
To evaluate the effect of 28-, 60- and 90-day FS2 cream use, compared to control, on clinician-assessed scar condition assessed by the Observer component of Patient and Observer Scar Assessment Scale (POSAS) at skin grafted wound (Study Arm 1)
Time frame: Day 28, Day 60 and Day 90
Scar condition of the donor skin graft harvest site on Day 28, Day 60, and Day 90 as assessed by the Observer component of POSAS
To evaluate the effect of 28-, 60- and 90-day FS2 cream use, compared to control, on clinician-assessed scar condition assessed by (POSAS) at: donor skin graft harvest site (Study Arm 2)
Time frame: Day 28, Day 60 and Day 90
Scar condition of the skin grafted wound on Day 28, Day 60, and Day 90 as assessed by the Patient component of POSAS
To evaluate the effect of 28-, 60- and 90-day FS2 cream use, compared to control, on patient-reported scar condition at: skin grafted wound (Study Arm 1)
Time frame: Day 28, Day 60 and Day 90
Scar condition of the donor skin graft harvest site on Day 28, Day 60, and Day 90 as assessed by the Patient component of POSAS
To evaluate the effect of 28-, 60- and 90-day FS2 cream use, compared to control, on patient-reported scar condition at: donor skin graft harvest site (Study Arm 2)
Time frame: Day 28, Day 60 and Day 90
Scar condition of the skin grafted wound on Day 120 and Day 180 as assessed by the Observer component of POSAS
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on clinician-assessed scar condition at: skin grafted wound (Study Arm 1) - POSAS
Time frame: Day 120 and Day 180
Scar condition of the donor skin graft harvest site on Day 120 and Day 180 as assessed by the Observer component of POSAS
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on clinician-assessed scar condition at: donor skin graft harvest site (Study Arm 2) - POSAS
Time frame: Day 120 and Day 180
Scar condition of the skin grafted wound on Day 120 and Day 180 as assessed by VSS
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on clinician-assessed scar condition at: skin grafted wound (Study Arm 1) - VSS
Time frame: Day 120 and Day 180
Scar condition of the donor skin graft harvest site on Day 120 and Day 180 as assessed by VSS
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on clinician-assessed scar condition at: donor skin graft harvest site (Study Arm 2) - VSS
Time frame: Day 120 and Day 180
Scar condition of the skin grafted wound on Day 120 and Day 180 as assessed by the Patient component of POSAS
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on patient-reported scar condition at: skin grafted wound (Study Arm 1) -POSAS
Time frame: Day 120 and Day 180
Scar condition of the donor skin graft harvest site on Day 120 and Day 180 as assessed by the Patient component of POSAS
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on patient-reported scar condition at: donor skin graft harvest site (Study Arm 2) - POSAS
Time frame: Day 120 and Day 180
Scar condition of the skin grafted wound on Day 120 and Day 180 as assessed by the Observer component of POSAS
To evaluate the effect of 120- and 180-day FS2 cream use on clinician-assessed scar condition at: skin grafted wound (Study Arm 1) - POSAS
Time frame: Day 120 and Day 180
Scar condition of the donor skin graft harvest site on Day 120 and Day 180 as assessed by the Observer component of POSAS
To evaluate the effect of 120- and 180-day FS2 cream use on clinician-assessed scar condition at: donor skin graft harvest site (Study Arm 2) - POSAS
Time frame: Day 120 and Day 180
Scar condition of the skin grafted wound on Day 120 and Day 180 as assessed by VSS
To evaluate the effect of 120- and 180-day FS2 cream use on clinician-assessed scar condition at: skin grafted wound (Study Arm 1) - VSS
Time frame: Day 120 and Day 180
Scar condition of the donor skin graft harvest site on Day 120 and Day 180 as assessed by VSS
To evaluate the effect of 120- and 180-day FS2 cream use on clinician-assessed scar condition at: donor skin graft harvest site (Study Arm 2) - VSS
Time frame: Day 120 and Day 180
Scar condition of the skin grafted wound on Day 120 and Day 180 as assessed by the Patient component of POSAS
To evaluate the effect of 120- and 180-day FS2 cream use on patient-reported scar condition at: skin grafted wound (Study Arm 1)
Time frame: Day 120 and Day 180
Scar condition of the donor skin graft harvest site on Day 120 and Day 180 as assessed by the Patient component of POSAS
To evaluate the effect of 120- and 180-day FS2 cream use on patient-reported scar condition at: donor skin graft harvest site (Study Arm 2)
Time frame: Day 120 and Day 180
Quality of life on Day 28, Day 60, and Day 90 as assessed by the Burn Specific Health Scale-Brief (BSHS-B)
To evaluate the effect of 28-, 60- and 90-day FS2 cream use, compared to control, on burn injury-related quality of life
Time frame: Day 28, Day 60 and Day 90
Quality of life on Day 120 and Day 180 as assessed by BSHS-B
Quality of life on Day 120 and Day 180 as assessed by BSHS-B To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on burn injury-related quality of life in those randomized to control for the first 90 days of study
Time frame: Day 120 and Day 180
Quality of life on Day 120 and Day 180 as assessed by BSHS-B
To evaluate the effect of 120- and 180-day FS2 cream use on burn injury-related quality of life in those randomized to FS2 cream for the first 90 days of study Quality of life on Day 120 and Day 180 as assessed by BSHS-B
Time frame: Day 120 and Day 180
Scar size(cm2) at the skin grafted wound on Day 28, Day 60 and Day 90 as assessed by photographs
To evaluate the effect of 28-, 60-, and 90-day FS2 cream use, compared to control, on wound scarring from: skin grafted wound (Study Arm 1)
Time frame: Day 28, Day 60 and Day 90
Scar height(cm) at the skin grafted wound on Day 28, Day 60 and Day 90 as assessed by photographs
To evaluate the effect of 28-, 60-, and 90-day FS2 cream use, compared to control, on wound scarring from: skin grafted wound (Study Arm 1)
Time frame: Day 28, Day 60 and Day 90
Scar size(cm2) at the donor skin graft harvest site on Day 28, Day 60 and Day 90 as assessed by photographs
To evaluate the effect of 28-, 60-, and 90-day FS2 cream use, compared to control, on wound scarring from: donor skin graft harvest site (Study Arm 2)
Time frame: Day 28, Day 60 and Day 90
Scar height(cm) at the donor skin graft harvest site on Day 28, Day 60 and Day 90 as assessed by photographs
To evaluate the effect of 28-, 60-, and 90-day FS2 cream use, compared to control, on wound scarring from: donor skin graft harvest site (Study Arm 2)
Time frame: Day 28, Day 60 and Day 90
Scar size(cm2) at the skin grafted wound on Day 120 and Day 180 as assessed by photographs
To evaluate the effect of 120- and 180-day FS2 cream use on wound scarring from: skin grafted wound (Study Arm 1)
Time frame: Day 120 and Day 180
Scar height(cm) at the skin grafted wound on Day 120 and Day 180 as assessed by photographs
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on wound scarring from: skin grafted wound (Study Arm 1)
Time frame: Day 120 and Day 180
Scar size(cm2)at the donor skin graft harvest site on Day 120 and Day 180 as assessed by photographs
To evaluate the effect of 120- and 180-day FS2 cream use on wound scarring from: donor skin graft harvest site (Study Arm 2)
Time frame: Day 120 and Day 180
Scar height(cm) at the donor skin graft harvest site on Day 120 and Day 180 as assessed by photographs
To evaluate the effect of 30- and 90-day FS2 cream use, starting 90 days after skin grafted wound's complete re-epithelization, on wound scarring from: donor skin graft harvest site (Study Arm 2)
Time frame: Day 120 and Day 180
To evaluate the Safety of FS2 Cream - Adverse events
Report of Adverse Events
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Whole Blood Hemoglobin (g/dl)
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Hematocrit (%)
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Red Blood Cell Count
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Red Cell distribution Width
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Mean corpuscular Volume
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Mean corpuscular Hemoglobin
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Mean corpuscular Hemoglobin Concentration
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - White Blood Cell Count and Differential
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Platelet Count
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Mean Platelet Volume
Safety Laboratory Parameters - Hematology Parameters (Complete blood count)
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - AST
Safety Laboratory parameters: Clinical Chemical Parameters
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - ALT
Safety laboratory parameters: Clinical chemistry parameters:
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - GGT
To evaluate the safety of FS2 cream Safety laboratory parameters: Clinical chemistry parameters.
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Alkaline Phosphate
Safety laboratory parameters: Clinical chemistry parameters
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Creatinine
Safety laboratory parameters Clinical chemistry parameters.
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - BUN
To evaluate the safety of FS2 cream Safety laboratory parameters: Clinical chemistry parameters.
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Bilirubin Total
Safety laboratory parameters: Clinical chemistry parameters.
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
To evaluate the safety of FS2 cream - Bilirubin Direct
Safety laboratory parameters: Clinical chemistry parameter.
Time frame: Day 0, Day 28, Day 60, Day 90 and Day 180
Plan to share: No
No publications or documents are linked to this record.
Start is estimated for Mar 2027; primary completion for Sep 2027, 6 months later.
Since we started tracking on Sep 25, 2026, the dates moved once, on Sep 30, 2026: start May 2026 → Mar 2027, primary completion Oct 2026 → Sep 2027 and completion Nov 2026 → Sep 2027.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.