Scleroderma Treatment With Celution Processed Adipose Derived Regenerative Cells (STAR)

The STAR Trial is a prospective, randomized, multi-center device trial intended to assess
safety and efficacy of subcutaneous administration of Celution processed ADRCs into fingers
of patients with hand dysfunction due to scleroderma.

Following informed consent and screening evaluations, eligible subjects will undergo
pre-operative testing. Subjects will then undergo fat harvest through small volume
liposuction under local anesthesia. Lipoaspirate will be processed in the Celution System to
isolate and concentrate ADRCs for immediate subcutaneous administration under local
anesthesia. Subjects will be randomly assigned to receive ADRCs (40 million cells) or a
visually-matched placebo in a 1:1 ratio. All subjects will receive subcutaneous
administration of test substance (ADRC or placebo) into all fingers of both hands. Following
completion of all 48 week visits and database lock, placebo treated subjects will be offered
treatment with their ADRCs cells should they continue to qualify according to the
inclusion/exclusion criteria and should they wish to be treated with ADRCs and agree to the
fat harvest procedure.

Key Inclusion Criteria:

1. Males or females ≥ 18 and ≤ 70 years of age

2. Diagnosis of diffuse cutaneous scleroderma (duration > 5 years) or limited cutaneous
scleroderma.

3. Cochin score ≥ 20 units

4. Ability to safely undergo liposuction

5. Symptoms consistent with Raynaud's Phemomena

6. Compliant with standard preventative recommendations

Key Exclusion Criteria:

1. Body Mass Index < 18 kg/m2

2. Active infection in any finger during screening period or infection in any finger
requiring antibiotics in the 30 days prior to the Screening Visit

3. Active infection at the potential site(s) of fat harvest during the screening period

4. Contractures of any finger or ulceration at point of injection precluding completion
of injection procedure

5. Amputation of any finger proximal to the proximal interphalangeal joint or any
amputation in more than one finger

6. Diagnosis of Rheumatoid Arthritis

7. Inflammatory arthritis of the hand, including significant osteoarthritis, that is not
due to scleroderma or significant acute inflammation in the hand that is due to
scleroderma, as per the investigator's clinical judgment

8. Oral cyclophosphamide exceeding 2 mg/kg/day, any intravenous cyclophosphamide,
methotrexate exceeding 25 mg/week, mycophenolate mofetil exceeding 3 gm/day,
hydoxychloroquine exceeding 7 mg/kg/day or azathioprine exceeding 300 mg/day or any
other immunosuppressive medication in the 90 days prior to the Screening Visit