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Study of Survival Duration for Donor Skin Cells in Skin Biopsy Wounds

A Phase I Study Investigating the Survival of HP802-247 Allogeneic Cells in Excisional Acute Cutaneous Wounds

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01190865
Enrollment
28
Registered
2010-08-30
Start date
2010-09-30
Completion date
2010-12-31
Last updated
2017-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Normal Female Volunteers

Brief summary

The goal for this study is to examine the persistence of growth arrested,allogeneic,male-donor keratinocytes and fibroblasts when applied as product HP802-247 to the surface of acute excisional wounds in health female volunteers, as measured using Y-STR for detection of Y-chromosome.

Interventions

BIOLOGICALHP802-247

One dose of HP802-247 consisting off 260 mL containing keratinocytes and fibroblasts totaling 5.0 x 10.6 cells per mL, plus fibrin.

Sponsors

Healthpoint
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Provide written informed consent. * Female, 18 years of age or older. * Any race or skin type, provided that there are no tattoos within 5 cm of the wound target, and the gentian violet surgical marker produces a clearly visible mark on the skin. * Willing to make all required study visits and, in the opinion of the Investigator, able to follow instructions. * Willing to undergo the repeated biopsy procedures. * Willing to undergo verification of sex chromosome status.

Exclusion criteria

* Males, or phenotypic females bearing Y-chromosome genetic material \[e.g., 46,X,(r)Y; 46,X,der(X)t(X;Y); sex reassignment surgery\]. * Contraindications or hypersensitivity to the use of the study medications or their components (e.g., history of anaphylaxis, serum sickness, or erythema multiforme reaction to aprotinin, bovine serum albumin or bovine serum proteins, penicillin, streptomycin, or amphotericin B). * History of keloid formation or hypertrophic scarring. * Participation in any interventional clinical trial within 30 days prior to screening. * History of prolonged bleeding, bleeding into joints, easy bruising following minor trauma, clotting factor deficiency, or current use of anticoagulants or platelet inhibitors. * Any medical condition which, in the opinion of the Co-Investigator, may interfere with normal wound repair. * Current therapy with drugs or biologics intended to function as immuno-suppressants, chronic (\> 10 days) oral corticosteroids, or any concomitant medication which, in the opinion of the Co-Investigator, may interfere with normal wound repair.

Design outcomes

Primary

MeasureTime frameDescription
Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Cohorts of 3 subjects were biopsied at weekly intervals for 8 weeksThe primary efficacy variable was detection of the full set of 17 Y STR loci. If all loci amplified such that a clear identification of a donor was possible, the test result was categorized as positive. If fewer loci amplified such that identification of the donor was not possible in a forensic setting, the result was categorized as negative. Descriptive statistics are presented for this variable.

Secondary

MeasureTime frameDescription
Time in Days to 50% Correct Identification (ID50) of the Implanted Male DNA 17 Loci in Female Volunteers, With Regard to Three DNA Profile Types, Including Partial DNA Profile, > 50% DNA Profile, and Full (or Complete) DNA Profile.Cohorts of 3 subjects were biopsied at weekly intervals for 8 weeksThe biopsy area was examined for the presence of the Y chromosome, based on the presence of a full set of Y-STR loci as well as partial sets, assayed by a commercial kit (AmpFISTRTM). Probit analysis was utilized to determine the time in days to 50% correct identification (ID50) of the implanted male DNA 17 loci in female volunteers, with regard to three DNA profile types, including partial DNA profile, \> 50% DNA profile, and full (or complete) DNA profile. The analysis was performed using SAS® PROC PROBIT

Countries

United States

Participant flow

Recruitment details

Subjects were enrolled at a single US investigational site, between September 14, 2010 and December 08, 2010.

Pre-assignment details

Subjects underwent buccal smear to ensure absence of a Y chromosome or translocated material from a Y chromosome. Day 1, all subjects underwent a baseline 3mm skin punch biopsy on the inner upper arm followed by a single application of HP802-247.

Participants by arm

ArmCount
HP802-247
Assessment Duration = 8 days Assessment Duration = 15 days Assessment Duration = 22 days Assessment Duration = 29 days Assessment Duration = 31 days Assessment Duration = 43 days Assessment Duration = 50 days Assessment Duration = 57 days HP802-247: One dose of HP802-247 consisting off 260 mL containing keratinocytes and fibroblasts totaling 5.0 x 10.6 cells per mL, plus fibrin.
28
Total28

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyNon-compliance2
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicHP802-247
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
27 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
25 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
23 Participants
Sex: Female, Male
Female
28 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
8 / 28
serious
Total, serious adverse events
1 / 28

Outcome results

Primary

Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.

The primary efficacy variable was detection of the full set of 17 Y STR loci. If all loci amplified such that a clear identification of a donor was possible, the test result was categorized as positive. If fewer loci amplified such that identification of the donor was not possible in a forensic setting, the result was categorized as negative. Descriptive statistics are presented for this variable.

Time frame: Cohorts of 3 subjects were biopsied at weekly intervals for 8 weeks

Population: 3 subjects were withdrawn; 2 for non-compliance and one at the subject's request. One subject, who was available to replace a subject assigned to a weekly cohort if the subject was unavailable, was assayed on Day 57 with the subjects assigned to the Week 8 cohort.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 1, Day 83 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 2, Day 151 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 3, Day 220 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 4, Day 290 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 5, Day 360 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 6, Day 430 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 7, Day 500 Participants
HP802-247Identification of the Full Set of Y-chromosome Short Tandem Repeats in Each Bioopsy.Week 8 Day 570 Participants
Secondary

Time in Days to 50% Correct Identification (ID50) of the Implanted Male DNA 17 Loci in Female Volunteers, With Regard to Three DNA Profile Types, Including Partial DNA Profile, > 50% DNA Profile, and Full (or Complete) DNA Profile.

The biopsy area was examined for the presence of the Y chromosome, based on the presence of a full set of Y-STR loci as well as partial sets, assayed by a commercial kit (AmpFISTRTM). Probit analysis was utilized to determine the time in days to 50% correct identification (ID50) of the implanted male DNA 17 loci in female volunteers, with regard to three DNA profile types, including partial DNA profile, \> 50% DNA profile, and full (or complete) DNA profile. The analysis was performed using SAS® PROC PROBIT

Time frame: Cohorts of 3 subjects were biopsied at weekly intervals for 8 weeks

Population: The analysis population consisted of the 8 cohorts of 3 subjects biopsied at weekly intervals over the 8-week duration of the study. It should be note that the cohort for Week 8 (Day 57) was composed of 4 subjects

ArmMeasureGroupValue (NUMBER)
HP802-247Time in Days to 50% Correct Identification (ID50) of the Implanted Male DNA 17 Loci in Female Volunteers, With Regard to Three DNA Profile Types, Including Partial DNA Profile, > 50% DNA Profile, and Full (or Complete) DNA Profile.Partial DNA profile19 Days
HP802-247Time in Days to 50% Correct Identification (ID50) of the Implanted Male DNA 17 Loci in Female Volunteers, With Regard to Three DNA Profile Types, Including Partial DNA Profile, > 50% DNA Profile, and Full (or Complete) DNA Profile.≥ 50% of the 17 loci17 Days
HP802-247Time in Days to 50% Correct Identification (ID50) of the Implanted Male DNA 17 Loci in Female Volunteers, With Regard to Three DNA Profile Types, Including Partial DNA Profile, > 50% DNA Profile, and Full (or Complete) DNA Profile.Complete DNA profile13 Days

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026