CMP-001 in Combo With Nivolumab in Stage IIIB/C/D Melanoma Patients With Clinically Apparent Lymph Node Disease

Patients are being asked to take part in this clinical research study because they have stage
IIIB, IIIC or IIID melanoma with lymph node disease and have yet to undergo surgery. There
are two phases, Prime Phase and a Boost Phase. If they participate they will receive
nivolumab in combination with CMP-001 for a total of 7 weeks (Prime Phase) prior to surgery.
Surgery will be performed approximately 2-4 weeks after completion of the Prime Phase. After
recovery from surgery patients will receive additional nivolumab in combination with CMP-001
for approximately 46 additional weeks (Boost Phase).

The main goal of this research study to determine if the combination of nivolumab and CMP-001
improves the likelihood of eradicating (destroying) disease in the lymph node (pathologic
response rate). Pathologic responses are associated with improved relapse-free and overall
survival in melanoma.

Prior to surgery (Prime Phase) Nivolumab 240mg, will be administered as a 30-minute IV
infusion on an outpatient basis. During the Prime Phase, 3 cycles of Nivolumab will be
administered every 2 weeks over a 6 week period starting with cycle 2, cycle 4 and then cycle
6.

Prior to surgery (Prime Phase) CMP-001 will be given as an injection from a syringe weekly
for a total of 7 weeks. The first injection (week 1), 5mg, will be applied directly into the
skin and the remaining injections, 3-10mg will be administered depending on the size of the
tumor, will be given intra-tumorally for weeks 2-7.

Surgery will be performed to the cancerous lymph node 2-4 weeks after the Prime Phase is
completed.

After recovery from surgery (Boost Phase) Nivolumab will be administered at 240mg every 2
weeks or 480 mg every 4 weeks depending on the physician's preference. CMP-001, 5mg, will be
administered by injections intra-tumorally every 4 weeks for up to 54 weeks.

Patients will be followed to assess for survival status until death, withdrawal of consent,
or the end of the study, whichever occurs first. This will be done every 3 months.

Inclusion Criteria:

1. Be willing and able to provide written informed consent for the study.

2. Be ≥ 18 years of age on day of signing informed consent.

3. Diagnosis of histologically or cytologically confirmed diagnosis of cutaneous melanoma
belonging to one of the following AJCC TNM stages:

1. Tx or T1-4 and

2. N1b, or N1c, or N2b, or N2c, or N3b, or N3c and

3. M0

Patients are eligible for this trial either at presentation for primary melanoma with
concurrent regional nodal and/or in-transit metastasis; or at the time of clinical
detected nodal and/or in-transit recurrence; and may belong to any of the following
groups:

- Primary melanoma with clinically apparent regional lymph node metastases.

- Clinically detected recurrent melanoma at the proximal regional lymph node(s)
basin.

- Clinically detected primary melanoma involving multiple regional nodal groups.

- Clinical detected nodal melanoma (if single site) arising from an unknown
primary.

- In-transit and/or satellite metastases with or without regional lymph node
involved permitted if considered potentially surgically resectable at baseline.

- NOTE: Determination of potential resectability must be made at baseline to be
eligible for this neoadjuvant study.

4. Presence of injectable and measureable disease based on RECIST 1.1.

5. Willing to undergo tumor biopsy (core, punch, incisional or excisional). Patients must
undergo biopsy (core, punch) or open biopsy (incisional, excisional) within 3 weeks of
registration on the study.

6. Performance status of 0 or 1 on the ECOG Performance Scale.

7. Demonstrate adequate organ function as defined below performed on screening labs
obtained within 14 days of registration.

- Absolute neutrophil count (ANC) ≥1,500 /mcL

- Hemoglobin ≥9 g/dL or ≥5.6 mmol/L

- Platelets ≥100,000 / mcL

- Serum creatinine or Measured or calculated creatinine clearance (GFR can also be
used in place of creatinine or CrCl) ≤1.5 X upper limit of normal (ULN) OR ≥60
mL/min for subject with creatinine levels > 1.5 X institutional ULN.

- Serum total bilirubin ≤ 1.5 X ULN OR Direct bilirubin ≤ ULN for subjects with
total bilirubin levels > 1.5 ULN.

- AST (SGOT) and ALT (SGPT) ≤ 2.5 X ULN.

- International Normalized Ratio (INR) or Prothrombin Time (PT) ≤1.5 X ULN unless
subject is receiving anticoagulant therapy as long as PT or PTT is within
therapeutic range of intended use of anticoagulants.

- Activated Partial Thromboplastin Time (aPTT) ≤1.5 X ULN unless subject is
receiving anticoagulant therapy as long as PT or PTT is within therapeutic range
of intended use of anticoagulants.

8. Female subject of childbearing potential should have a negative urine or serum
pregnancy within 7 days prior to receiving the first dose of study medication. If the
urine test is positive or cannot be confirmed as negative, a serum pregnancy test will
be required.

9. Female subjects of childbearing potential should be willing to use 2 methods of birth
control or be surgically sterile, or abstain from heterosexual activity for the course
of the study through 26 weeks after the last dose of study medication. Subjects of
childbearing potential are those who have not been surgically sterilized or have not
been free from menses for > 1 year.

10. Male subjects should agree to use an adequate method of contraception starting with
the first dose of study therapy through 26 weeks after the last dose of study therapy.
Note: Abstinence is acceptable if this is the usual lifestyle and preferred
contraception for the subject.

Exclusion Criteria:

1. History of uveal melanoma.

2. Is currently participating in or has participated in a study of an investigational
agent or using an investigational device within 4 weeks of the first dose of
treatment.

3. Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any
other form of immunosuppressive therapy within 7 days prior to the first dose of trial
treatment.

4. Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy
within 2 weeks prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at
baseline) from adverse events due to a previously administered agent.

- Note: Subjects with ≤ Grade 2 neuropathy are an exception to this criterion and
may qualify for the study.

- Note: If subject received major surgery, they must have recovered adequately from
the toxicity and/or complications from the intervention prior to starting
therapy.

- Note: Subjects with autoimmune disorders of Grade 4 while on prior immunotherapy
will be excluded. Subjects who developed autoimmune disorders of Grade ≤ 3 may
enroll if the disorder has resolved to Grade ≤1 and the subject has been off
systemic steroids at doses >10 mg/d for at least 2 weeks.

5. Active (i.e., symptomatic or growing) central nervous system (CNS) metastases.

6. Has a known additional malignancy that is progressing or requires active treatment.
Exceptions include basal cell carcinoma of the skin, squamous cell carcinoma of the
skin, or in situ cervical cancer that has undergone potentially curative therapy.

7. Has a systemic disease that requires systemic pharmacologic doses of corticosteroids
greater than 10mg daily prednisone (or equivalent). Subjects who are currently
receiving steroids at a dose of ≤10mg daily do not need to discontinue steroids prior
to enrollment Subjects that require topical, ophthalmologic and inhalational steroids
would not be excluded from the study. Subjects with hypothyroidism stable on hormone
replacement or Sjogren's syndrome will not be excluded from the study. Subjects who
require active immunosuppression (greater than steroid dose discussed above) for any
reason are excluded.

8. Has evidence of interstitial lung disease or active, non-infectious pneumonitis.

9. Has an active infection requiring systemic therapy.

10. Has a history or current evidence of any condition, therapy, or laboratory abnormality
that might confound the results of the trial, interfere with the subject's
participation for the full duration of the trial, or is not in the best interest of
the subject to participate, in the opinion of the treating investigator.

11. Has known psychiatric or substance abuse disorders that would interfere with
cooperation with the requirements of the trial.

12. Is pregnant or breastfeeding, or expecting to conceive or father children within the
projected duration of the trial, starting with the pre-screening or screening visit
through 26 weeks after the last dose of trial treatment.

13. Has received prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137.
Prior treatment with ipilimumab or interferon alfa is allowed. Patients with history
of allergic or hypersensitivity reaction to interferon alfa or ipilimumab are also
excluded.

14. Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies).

15. Has known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA
[qualitative] is detected. Patients with treated Hepatitis B/C with no evidence of
active infection may be enrolled.