Reduction in Severity of Skin ScarringPhase 2NCT01494922
Safety and Efficacy of EXC 001 in Subjects Who Have Participated in Prior Studies of EXC 001
A Phase 2 study testing EXC 001 (currently called PF-06473871) in people with Reduction in Severity of Skin Scarring, run by Pfizer at 4 sites in United States.
Trial summary
The purpose of this study is to provide subjects who participated in prior studies of EXC 001 the opportunity to have their hypertrophic scars surgically revised and treated with EXC 001. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Reduction in Severity of Skin Scarring
- What is being tested?
- EXC 001 (currently called PF-06473871)
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 14 participants
- Where
- 4 sitesUnited States
- Study dates
- 8 Dec 2011to 10 Sep 2013
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Healthy adults who have participated in previous studies of EXC 001.
- Healthy adults who have chosen to have their scars revised.
Who cannot join
- Currently pregnant or pregnant during the 6 months prior to inclusion in the study, or breast feeding.
- Participation in another clinical trial within 30 days prior to the start of the study.
Trial locations and contacts
4 sites in 1 country.
United States4 sites
Northwestern University,Division of Plastic Surgery
Chicago, Illinois, 60611
Jewell Plastic Surgery Center
Eugene, Oregon, 97401
Altus Research
Lake Worth, Florida, 33461
Connall Consmetic Surgery
Tualatin, Oregon, 97062
About this study
Official title: A PHASE 2, OPEN-LABEL STUDY TO PROVIDE REVISION OF SCARS RESULTING FROM SURGERY IN PRIOR STUDIES OF EXC 001
The purpose of this study is to provide subjects who participated in prior studies of EXC 001 the opportunity to have their hypertrophic scars surgically revised and treated with EXC 001.
- Conditions
- Reduction in Severity of Skin Scarring
- Being tested
- EXC 001 (currently called PF-06473871)
- Keywords
- Skin scarring, cicatrix, hypertrophic scar, hypertrophic scar prevention
- Medical subject headings
- Cicatrix, Cicatrix, Hypertrophic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EXC 001 (currently called PF-06473871)Drug
Single dose administered by injection at four different times
| Study group | Role | What they receive |
|---|---|---|
| Open Label | Experimental | Not described Receives: Drug: EXC 001 (currently called PF-06473871) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included SAEs and all non-SAEs that occurred during the study.
Measured: Week 2 to Week 24
Number of Participants With Positive Skin Sensitivity Reaction
Participants were instructed to inform the investigator in case of any itching, redness, pain or any other symptom that appeared to be a rash at the injection sites. Erythematous, raised (indurated) and edematous reactions were considered as positive skin sensitivity reactions. In this outcome measure number of participants with any positive skin sensitivity reaction were reported.
Measured: Day 1 up to Week 24
Number of Participants With Clinically Significant Findings in Laboratory Examinations
Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); Hepatobiliary biochemistry: Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Albumin, Alkaline Phosphatase, Total Bilirubin ; Renal Function Tests: Blood Urea Nitrogen (BUN), Creatinine, Creatinine Kinase, Uric Acid ; Electrolytes: Sodium, Potassium; Glucose; Urine analysis: (decimal logarithm of reciprocal of hydrogen ion activity )[pH], Specific gravity. Clinically significant laboratory abnormality findings were based on investigator discretion.
Measured: Day 1 up to Week 24
Number of Participants With Clinically Significant Change in Vital Signs
Following vital sign parameters were assessed: diastolic blood pressure, systolic blood pressure, respiration rate, pulse rate, temperature and body weight. Number of participants with clinically significant change in any vital sign parameter compared to baseline were reported. Clinically significant change in vital signs criteria were based on investigator's discretion.
Measured: Day 1 up to Week 24
Number of Participants With Clinically Significant Findings in Electrocardiogram (ECG) Abnormalities
Following parameters were analyzed: heart rate, PR interval, QT interval, QRS interval and QT interval corrected using Fridericia's formula (QTcF). Clinically significant findings in ECG were based on investigator's discretion.
Measured: Day 1 up to Week 24
Number of Participants With Abnormalities in Physical Examinations
Physical examination included the assessment of skin, head, ears, eyes, nose, throat, respiratory system, cardiovascular system, abdomen (including liver and kidneys), musculoskeletal system, neurological system, gastrointestinal system, genitourinary system, endocrine system and lymph nodes. Abnormality in physical examination were based on investigator's discretion.
Measured: Day 1 up to Week 24
Secondary outcomes (4)
Physician Observer Scar Assessment Score: Individual Sub Scores and Composite Score
Physician assessment of scar was done using a valid published 10-point rating scale. Assessment included following sub scores: vascularity, pigmentation, thickness, relief, pliability, surface area and overall opinion for scar, on a score of 1 = normal skin to 10 = worst scar imaginable. Composite score was the sum of all the sub scores except the overall opinion score and range from 6 (best score) to 60 (worst score).
Measured: Week 24
Participant Observer Scar Assessment Score: Individual Sub Scores, Composite Score, Scar Appearance Composite Score
Participants rated pain, itching, color, stiffness, thickness, irregularity and overall opinion of scar on 10-point scale. For pain and itching associated with scar: range = 1 (no, not at all) to 10 (yes, worst imaginable) and for other parameters associated with scar compared to normal skin: range = 1 (no, same as normal skin) to 10 (yes, very different). Composite score is the sum of all sub scores except overall opinion, range 6 (best) to 60 (worst). Scar appearance composite score is the sum of all sub scores except overall opinion, pain and itching, range 4 (best) to 40 (worst).
Measured: Week 24
Number of Scars Classified According to Physician Photonumeric Guide Score Severity Category
Physician rated severity of each scar using a photonumeric guide on a scale range from 1 to 5 (where 1 = minimal, 2 = mild, 3 = moderate, 4 = severe, 5 = very severe). Number of scars with different ratings of scar severity were reported. Participants may have received treatment for multiple scars (up to 5 scars), results are reported for all scars (individual scar) and most severe scar for all the participants.
Measured: Week 24
Number of Scars Classified According to Subject Participant Photonumeric Guide Score Severity Category
Participants rated severity of each scar using a photonumeric guide on a scale range from 1 to 5 (where 1 = minimal, 2 = mild, 3 = moderate, 4 = severe, 5 = very severe). Number of scars with different ratings of scar severity were reported. Participants may have received treatment for multiple scars (up to 5 scars), results are reported for all scars (individual scar) and most severe scar for all the participants.
Measured: Week 24
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Dec 2011 (estimated)
- Study start8 Dec 2011
- Primary completion10 Sep 2013
- Study completion10 Sep 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Reduction in Severity of Skin ScarringStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Masking
- None (open label)
- Enrolment
- 14 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01494922
- Sponsor's protocol ID
- EXC 001-206
- Other IDs
- B5301003
- Status last verified
- Aug 2021
- First submitted
- 15 Dec 2011
- Last updated
- 13 Aug 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.
Study at a glance
From the registry record, last updated by the sponsor on 13 Aug 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A PHASE 2, OPEN-LABEL STUDY TO PROVIDE REVISION OF SCARS RESULTING FROM SURGERY IN PRIOR STUDIES OF EXC 001
- ClinicalTrials.gov ID
- NCT01494922
- Acronym / sponsor ID
- EXC 001-206
- Conditions
- Reduction in Severity of Skin Scarring
- Keywords
- Skin scarring, cicatrix, hypertrophic scar, hypertrophic scar prevention
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 14 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 8 Dec 2011 (actual)
- Primary completion
- 10 Sep 2013 (actual)
- Study completion
- 10 Sep 2013 (actual)
- First posted
- 19 Dec 2011 (estimated)
- Results
- Posted 13 Aug 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to provide subjects who participated in prior studies of EXC 001 the opportunity to have their hypertrophic scars surgically revised and treated with EXC 001.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Open Label | Experimental | Drug: EXC 001 (currently called PF-06473871) |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Healthy adults who have participated in previous studies of EXC 001.
- Healthy adults who have chosen to have their scars revised.
Key exclusion criteria (2 listed)
- Currently pregnant or pregnant during the 6 months prior to inclusion in the study, or breast feeding.
- Participation in another clinical trial within 30 days prior to the start of the study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| EXC 001 (currently called PF-06473871)Single dose administered by injection at four different times | Drug | Open Label |
Primary outcome
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time frame: Week 2 to Week 24
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included SAEs and all non-SAEs that occurred during the study.
Number of Participants With Positive Skin Sensitivity Reaction
Time frame: Day 1 up to Week 24
Participants were instructed to inform the investigator in case of any itching, redness, pain or any other symptom that appeared to be a rash at the injection sites. Erythematous, raised (indurated) and edematous reactions were considered as positive skin sensitivity reactions. In this outcome measure number of participants with any positive skin sensitivity reaction were reported.
Number of Participants With Clinically Significant Findings in Laboratory Examinations
Time frame: Day 1 up to Week 24
Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); Hepatobiliary biochemistry: Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Albumin, Alkaline Phosphatase, Total Bilirubin ; Renal Function Tests: Blood Urea Nitrogen (BUN), Creatinine, Creatinine Kinase, Uric Acid ; Electrolytes: Sodium, Potassium; Glucose; Urine analysis: (decimal logarithm of reciprocal of hydrogen ion activity )[pH], Specific gravity. Clinically significant laboratory abnormality findings were based on investigator discretion.
Number of Participants With Clinically Significant Change in Vital Signs
Time frame: Day 1 up to Week 24
Following vital sign parameters were assessed: diastolic blood pressure, systolic blood pressure, respiration rate, pulse rate, temperature and body weight. Number of participants with clinically significant change in any vital sign parameter compared to baseline were reported. Clinically significant change in vital signs criteria were based on investigator's discretion.
Number of Participants With Clinically Significant Findings in Electrocardiogram (ECG) Abnormalities
Time frame: Day 1 up to Week 24
Following parameters were analyzed: heart rate, PR interval, QT interval, QRS interval and QT interval corrected using Fridericia's formula (QTcF). Clinically significant findings in ECG were based on investigator's discretion.
Number of Participants With Abnormalities in Physical Examinations
Time frame: Day 1 up to Week 24
Physical examination included the assessment of skin, head, ears, eyes, nose, throat, respiratory system, cardiovascular system, abdomen (including liver and kidneys), musculoskeletal system, neurological system, gastrointestinal system, genitourinary system, endocrine system and lymph nodes. Abnormality in physical examination were based on investigator's discretion.
4 secondary outcomes
Physician Observer Scar Assessment Score: Individual Sub Scores and Composite Score
Time frame: Week 24
Participant Observer Scar Assessment Score: Individual Sub Scores, Composite Score, Scar Appearance Composite Score
Time frame: Week 24
Number of Scars Classified According to Physician Photonumeric Guide Score Severity Category
Time frame: Week 24
Number of Scars Classified According to Subject Participant Photonumeric Guide Score Severity Category
Time frame: Week 24
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Aug 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing EXC 001 (currently called PF-06473871) in people with Reduction in Severity of Skin Scarring, run by Pfizer at 4 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 13 Aug 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) (time frame: Week 2 to Week 24). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Aug 2021.