- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01822301
Structural Fat Grafting for Craniofacial Trauma: Repeat Fat Grafting Injection-5 Subject Cohort (BTIPlusUp)
Fat grafting represents a technique with great potential to improve outcomes in minimally invasive facial reconstruction. Fat grafting has already been demonstrated as a safe and minimally invasive technique over decades of widespread practice in plastic surgery. In our current study of fat grafting for facial deformities (IRB# PRO09060101), we have treated 9 subjects without adverse event and all have had a significant improvement. Since all methods of treatment and evaluation are the same in this study, we will be able to use the data in our prior study as additional control data.
We hypothesize that repeating the fat grafting in subjects with previous facial fat grafts will enable successful restoration of tissue volume and craniofacial form. Additionally, we hypothesize that the results will be durable and subject quality of life improved.
Five (5) subjects (who were previously enrolled into IRB# PRO09060101) will be enrolled to this single center University of Pittsburgh site research study.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Facial trauma injuries, especially those sustained in military combat and severe automobile crashes, are characterized by destruction of bone and soft tissue anatomy. While the bony skeleton can often be reconstructed, the overlying soft tissue is difficult to restore.
Importantly, it is the structure of the soft tissue that imparts the normal human form, and adequate reconstruction of soft tissue defects allows trauma victims to reintegrate into society. Accepted procedures for soft tissue reconstruction of the face involve tissue flap reconstruction procedures and autologous fat grafting. Tissue flap operations are extensive, often including microvascular surgery, and do not precisely correct the deformities. Fat grafting is a less invasive technique that allows for more precise shaping of the reconstructed tissues. However, autologous fat grafts may undergo resorption that can affect the appearance of the reconstruction over time. The degree of change in appearance after fat grafting has not been well studied for facial trauma patients.
We hypothesize that subjects who have successfully completed participation in the study (PRO09060101) and experienced graft resorbtion will have improved outcomes with an additional fat graft treatment. We anticipate that additional fat graft treatment will fully restore the facial features and overcome fat loss from the initial fat graft treatment. Additionally, we hypothesize that the cellular properties of the fat precursor cells (preadipocytes) may correlate with fat graft retention
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Pennsylvania
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Pittsburgh, Pennsylvania, United States, 15213
- Unversity of Pittsburgh
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Aged 18 years or older and able to provide informed consent
- Have suffered injury resulting in craniofacial volume defects which could be treated with a graft volume of between 5 and 150 cc of lipoaspirate
- Be at least 3 months post-injury or post-surgery (from trauma procedures) so that acute edema is resolved
- Volume defects are covered by intact skin and do not communicate with oral cavity or sinuses
- The three dimensional geometry of the volume defects would allow for treatment with lipoaspirate injection that in a manner that at least two distinct treated areas could be discerned on gross examination and radiographically (e.g. treated regions are on opposite sides of the face, on lower face versus upper face, or separated by a bony landmark such as zygoma. This would include the ability to treat an uninjured contralateral region with lipaspirate in order to obtain symmetry.
- Willing and able to comply with follow up examinations, including radiographic studies
- Have completed participation in IRB# PRO09060101.
Exclusion Criteria:
- Age less than 18 years
- Inability to provide informed consent
- Craniofacial defects intended for treatment have open wounds or communicate with oral cavity or sinus (note: presence of such a defect in the setting of another defect(s) that meets treatment criteria will not exclude the patient from participating).
- Active infection anywhere in the body
- Diagnosed with cancer within the last 12 months and /or presently receiving chemotherapy or radiation treatment
- Known coagulopathy
- Systemic disease that would render the fat harvest and injection procedure, along with associated anesthesia, unsafe to the patient.
- Pregnancy
- Subjects with Schizophrenia, Bipolar Disorder. (Subjects who are found to be stable on medication and receive psychiatric clearance could be eligible for study participation per the Physician's discretion.)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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EXPERIMENTAL: Repeat Facial fat grafting
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Fat grafting is a minimally invasive clinical procedure that has been widely used by plastic surgeons within reconstructive surgery for many years.
Fat grafting is considered a standard of care procedure in plastic surgery.
In brief, fat tissue to be used for grafting is harvested (usually from abdomen or thighs) with a small liposuction cannula in the operating room.
The fat tissue is then sterilely centrifuged and allowed to decant before separating the fluid and oil layers from the fat tissue fraction.
The aspirated fat is then loaded into 1cc syringes and injected into the facial deformity using specialized injection cannulas.
In this study, we will treat 5 subjects from protocol (IRB # PRO09060101) with an additional fat graft treatment to assess whether this will increase fat graft retention over time.
Additionally, data from our current study assessing volume retention after fat grafting for facial deformities (IRB # PRO09060101) with be used for comparison.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Facial Volume Score
Time Frame: assessed at baseline (pre-op), days 7-21 post-op, 3 months post-op, and 9 months post-op
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the facial volume and appearance grading scale evaluates each aesthetic region in the face based on both physical examination and 3D photography by the clinician.
scale ranges from 1-3 where a score of 1 indicates an obvious contour defect; 2 shows a noticeable improvement in contour but not sufficient to impart a normal appearance; 3 represents a normal appearance and/or close approximation with a normal uninjured contralateral structure.
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assessed at baseline (pre-op), days 7-21 post-op, 3 months post-op, and 9 months post-op
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Serial Computed Tomography Imaging
Time Frame: assessed at 7-21 days, 3 months and 9 months post op.
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serial computed tomography images were collected to evaluate the volume of the defect
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assessed at 7-21 days, 3 months and 9 months post op.
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Collaborators and Investigators
Sponsor
Collaborators
Publications and helpful links
General Publications
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- Karabulut AB, Tumerdem B. Obtaining predictable results in malar augmentation with preimplant fat injection. Plast Reconstr Surg. 2004 Dec;114(7):1974-5. doi: 10.1097/01.prs.0000143917.52057.2a. No abstract available.
- Serra-Renom JM, Fontdevila J. Treatment of facial fat atrophy related to treatment with protease inhibitors by autologous fat injection in patients with human immunodeficiency virus infection. Plast Reconstr Surg. 2004 Aug;114(2):551-5; discussion 556-7. doi: 10.1097/01.prs.0000128427.54445.63.
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Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- PRO12100585
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
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