A Phase 1, Open-label Safety Study of NKA in Patients With Type 2 Diabetes

This is a Phase 1 safety and tolerability study to determine if NKA, manufactured from a
patient's renal biopsy tissue, can be safely implanted back into the kidney of the patient.
Patients must have CKD and Type 2 Diabetes.

Inclusion Criteria:

- Patients with type 2 diabetes mellitus (T2DM).

- Patients with CKD defined as glomerular filtration rate (GFR) of 20 - 50
mL/min/1.73m2, inclusive.

- Microalbuminuria that cannot be explained by an alternative diagnosis.
Microalbuminuria is defined as a urinary albumin-creatinine ration (UACR) ≥ 30 mg/g
or urine albumin excretion ≥ 30 mg/day on 24 hour urine collection.

- Ongoing treatment with ACEi or ARB. Patients who are intolerant may be included as
long as they have stable blood pressure.

- Systolic blood pressure between 105 and 140 mmHg (inclusive) and diastolic blood
pressure ≤ 90 mmHg.

- The patient should have historical data to provide a reasonable estimate of the rate
of progression of CKD

Exclusion Criteria:

- Type 1 diabetes mellitus (DM).

- History of a renal transplant.

- HbA1c > 10% at Screening.

- Hemoglobin levels < 9 g/dL prior to biopsy or implant.

- Known allergy to kanamycin or structurally similar aminoglycoside antibiotics.

- Abnormal coagulation status as measured by activated partial prothrombin time,
international normalized ratio (INR), and/or platelet count.

- Ineligible for a biopsy (e.g., based on size or cortical depth), MRI or renal
scintigraphy study (e.g. due to hypersensitivity or allergy) according to standard
site practices.

- Not a good candidate for laparoscopic surgical procedure (based on the assessment of
the surgeon who will be performing the implant), including patients who are morbidly
obese, have excessive fat surrounding the kidney, have a BMI > 45, or who are
otherwise at excessive risk for serious complications.

- Clinically significant infection requiring parenteral antibiotics within 6 weeks of
biopsy or implantation.

- Patients with small kidneys (average size < 9 cm) or only one kidney. Patients with
a rapid decline in renal function over the last 3 months prior to biopsy or acute
kidney injury.

- Patients with any of the following conditions prior to biopsy: renal tumors,
polycystic kidney disease, renal cysts or other anatomic abnormalities that would
interfere with the biopsy or implantation procedure (e.g., cysts in the pathway of
the injection for implantation), hydronephrosis, skin infection over proposed biopsy
sites, or evidence of a urinary tract infection.

- Female subjects who are pregnant, lactating (breast feeding) or planning a pregnancy
during the course of the study.

- History of cancer within the past 3 years (excluding non-melanoma skin cancer and
carcinoma in situ of the cervix).

- Life expectancy of less than 2 years.

- Any contraindication or known anaphylactic or severe systemic reaction to either
human blood products or materials of animal (bovine, porcine) origin or anesthetic
agents.

- Positive for Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or
Hepatitis C Virus (HCV) assessed.

- Subjects with active tuberculosis (TB) requiring treatment in the past 3 years.

- Immunocompromised subjects or patients receiving immunosuppressive agents.

- Subjects with uncontrolled diabetes, incapacitating cardiac and/or pulmonary
disorders.

- History of active alcohol and/or drug abuse that in the investigator's assessment
would impair the subject's ability to comply with the protocol.

- Patients with clinically significant hepatic disease.

- Patients with bleeding disorders that would, in the opinion of the Investigator,
interfere with the performance of study procedures; patients taking Coumarins
(e.g.,Warfarin) or other anticoagulants (e.g. enoxaparin or direct thrombin
inhibitors).

- Use of any investigational product within 3 months of the biopsy .