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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.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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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

Other trials in United States

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.

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 groups in NCT01494922
Study groupRoleWhat they receive
Open LabelExperimentalNot 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.

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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)
  1. 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

  2. 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

  3. 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

  4. 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.

  1. First posted19 Dec 2011 (estimated)
  2. Study start8 Dec 2011
  3. Primary completion10 Sep 2013
  4. Study completion10 Sep 2013

Resources

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)
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
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.

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.

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