Multiple Applications of ExpressGraft-C9T1 Skin Tissue as a Treatment for Diabetic Foot Ulcers
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ClinicalTrials.gov Identifier: NCT04134143 |
Recruitment Status :
Terminated
(Business decision - not related to product quality or safety concerns)
First Posted : October 22, 2019
Last Update Posted : January 14, 2021
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Some people with diabetes get foot ulcers that do not heal. These ulcers can get infected and cause other medical problems.
Five patients with these foot ulcers volunteered to participate in the first part of this study (C9T12015, NCT02657876). They are called Cohort 1 in this registration. Cohort 1 received one application (piece) of an experimental skin tissue to make sure it was safe.
This study will extend the safety test of the experimental skin tissue. It will find out if it is safe to use more than once to cover non-healing ulcers.
This extension will include two more groups, Cohort 2 and Cohort 3. Cohort 2 may get up to 5 applications. Cohort 3 may get up to 10 applications. The number of applications will depend on how well the wound is healing.
Participants will be in the study up to one year.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Diabetes Diabetic Foot Ulcer Non-healing Wound | Biological: ExpressGraft-C9T1 Skin Tissue | Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 6 participants |
Allocation: | Non-Randomized |
Intervention Model: | Sequential Assignment |
Intervention Model Description: | Cohort 2 will begin when the study starts, and after the safety monitoring board approves progression to the next cohort, Cohort 3 will begin. |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | An Open-Label, Prospective, Safety, and Tolerability Study of ExpressGraft- C9T1 Skin Tissue in the Treatment of Diabetic Foot Ulcers |
Actual Study Start Date : | November 7, 2019 |
Actual Primary Completion Date : | November 25, 2020 |
Actual Study Completion Date : | December 30, 2020 |

Arm | Intervention/treatment |
---|---|
Experimental: Cohort 1: One Application
Participants enrolled in Cohort 1 received one application of experimental skin tissue during the first part of this trial (NCT02657876)
|
Biological: ExpressGraft-C9T1 Skin Tissue
A round patch of experimental skin tissue that the doctor applies over the ulcer
Other Name: Experimental skin tissue |
Experimental: Cohort 2: Up to Five Applications
Participants enrolled in Cohort 2 may receive up to 5 applications of experimental skin tissue as required for wound healing
|
Biological: ExpressGraft-C9T1 Skin Tissue
A round patch of experimental skin tissue that the doctor applies over the ulcer
Other Name: Experimental skin tissue |
Experimental: Cohort 3: Up to Ten Applications
Participants enrolled in Cohort 3 may receive up to 10 applications of experimental skin tissue as required for wound healing
|
Biological: ExpressGraft-C9T1 Skin Tissue
A round patch of experimental skin tissue that the doctor applies over the ulcer
Other Name: Experimental skin tissue |
- Number of participants with adverse events at Week 12 [ Time Frame: at Week 12 ]Clinically significant vital signs, infection, blood chemistry, hematology and immunological evaluations are recorded as adverse events
- Number of participants with adverse events through study completion [ Time Frame: at approximately 12 months ]Clinically significant vital signs, infection, blood chemistry, hematology and immunological evaluations are recorded as adverse events

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Volunteers will be consented. Then there will be a run-in period for the doctor to run some tests. If the tests show the study would be good for the patient, the doctor will enroll them as participants in the trial.
Inclusion Criteria:
To be considered for inclusion, a participant:
- Agrees to practice birth control for the duration of the study
- Has documented Type 1 or Type 2 diabetes and an HbA1C score of 10 or below
- Has protocol-defined sufficient blood pressure and flow to the foot
- Has stable medications for 2 weeks before treatment (other than diabetes medications or antibiotics)
- Is able and willing to attend scheduled visits and comply with study procedures
- If a smoker, agrees to try quitting and will accept counseling for it (Cohorts 2 and 3 only)
- Has documented informed consent for study enrollment
- Has had an uninfected, appropriately-sized diabetic ulcer on the foot for at least 4 weeks but not more than 1 year
Exclusion Criteria:
The doctor may not consider for inclusion a participant who:
- Is pregnant, nursing, or a prisoner
- Has had osteomyelitis in the foot with the ulcer in the last 30 days
- Has a history of poor compliance
- Has received drugs or therapies not allowed per protocol
- Has used an investigational product within the last 60 days
- Has ever received therapy for the study ulcer with any cell and/or tissue product (CTP)
- Has a study ulcer in a condition not appropriate for the study
- Has a medical condition or history that, per protocol or in the opinion of the study doctor, might put the safety of the participant in danger

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04134143
United States, Arizona | |
Titan Clinical Research | |
Phoenix, Arizona, United States, 85004 | |
United States, California | |
Limb Preservation Platform, Inc. | |
Fresno, California, United States, 93710 | |
Center For Clinical Resarch | |
San Francisco, California, United States, 94115 | |
United States, Georgia | |
Center for Advanced Research & Education | |
Gainesville, Georgia, United States, 30501 |
Study Director: | Global Clinical Leader | Stratatech, a Mallinckrodt Company |
Responsible Party: | Stratatech, a Mallinckrodt Company |
ClinicalTrials.gov Identifier: | NCT04134143 |
Other Study ID Numbers: |
C9T12015 (Extended) |
First Posted: | October 22, 2019 Key Record Dates |
Last Update Posted: | January 14, 2021 |
Last Verified: | January 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Diabetic Foot Foot Ulcer Ulcer Pathologic Processes Diabetic Angiopathies Vascular Diseases Cardiovascular Diseases Leg Ulcer |
Skin Ulcer Skin Diseases Diabetes Complications Diabetes Mellitus Endocrine System Diseases Diabetic Neuropathies Foot Diseases |