A Pilot Study of Trientine With Vemurafenib for the Treatment BRAF Mutated Metastatic Melanoma

Inclusion criteria

1. Willing and able to give written informed consent.

2. ECOG performance status ≤ 1

3. Histologic diagnosis of unresectable stage IIIC or stage IV melanoma that is BRAF V600
mutation positive

4. Stable, treated brain metastases are allowed. Stable brain metastases are defined as
stable on MRI 4 weeks after the completion of radiation, and currently asymptomatic no
longer requiring corticosteroids for 2 weeks prior to the initiation of study drug.

5. Cutaneous tumor deposits that, in the opinion of the investigator are amenable to
sequential biopsies for correlative analyses. In addition to these, all patients must
have measurable disease (i.e., present with at least one measurable lesion per RECIST,
version 1.1).

6. Able to swallow and retain oral medication and must not have any clinically
significant gastrointestinal abnormalities that may alter absorption such as
malabsorption syndrome or major resection of the stomach or bowels.

7. Required values for initial laboratory tests:

- WBC ≥ 2000/uL

- ANC ≥ 1000/uL

- Platelets ≥ 75 x 103/uL

- Hemoglobin ≥ 9 g/dL (≥ 80 g/L; may be transfused)

- Creatinine ≤ 2.0 x ULN

- AST/ALT ≤ 2.5 x ULN for patients without liver metastasis, ≤ 5 times for liver
metastases

- Bilirubin ≤ 2.0 x ULN, (except patients with Gilbert's Syndrome, who must have a
total bilirubin less than 3.0 mg/dL)

8. Women of childbearing potential (WOCBP) must be using an adequate method of
contraception to avoid pregnancy throughout the study and for up to 26 weeks after the
last dose of investigational product, in such a manner that the risk of pregnancy is
minimized. WOCBP include any female who has experienced menarche and who has not
undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation,
or bilateral oophorectomy) or is not post-menopausal. Post-menopause is defined as:

- Amenorrhea ≥ 12 consecutive months without another cause, or

- For women with irregular menstrual periods and taking hormone replacement therapy
(HRT), a documented serum follicle stimulating hormone (FSH) level ≥ 35 mIU/mL.

Women who are using oral contraceptives, other hormonal contraceptives (vaginal products,
skin patches, or implanted or injectable products), or mechanical products such as an
intrauterine device or barrier methods (diaphragm, condoms, spermicides) to prevent
pregnancy, or are practicing abstinence or where their partner is sterile (eg, vasectomy)
should be considered to be of childbearing potential.

WOCBP must have a negative serum pregnancy test (minimum sensitivity 25 IU/L or equivalent
units of HCG) within 72 hours.

Men of fathering potential must be using an adequate method of contraception to avoid
conception throughout the study [and for up to 26 weeks after the last dose of
investigational product] in such a manner that the risk of pregnancy is minimized.

Exclusion Criteria

1. Prior treatment with a BRAF or MEK inhibitor for metastatic melanoma (treatment in the
adjuvant setting is allowed)

2. Any other malignancy form which the patient has been disease-free for less than 2
years, with the exception of adequately treated and cured basal or squamous cell skin
cancer, superficial bladder cancer, carcinoma in situ of the cervix, or DCIS. Patients
with prior malignancies that are not considered to be an active problem may be
enrolled at the discretion of the investigator, regardless of time frame.

3. Women of childbearing potential (WOCBP), defined above in Section 4.1, who:

1. are unwilling or unable to use an acceptable method of contraception to avoid
pregnancy for their entire study period and for at least 26 weeks after cessation
of study drug, or

2. have a positive pregnancy test at baseline, or

3. are pregnant or breastfeeding.

4. Anti-cancer therapy within 28 days prior to starting on therapy

5. Any serious or unstable pre-existing medical conditions psychiatric disorders, or
other conditions that could interfere with the subject's safety, obtaining informed
consent, or compliance with study procedures.

6. Known history of Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or
Hepatitis C Virus (HCV) infection (with the exception of chronic or cleared HBV and
HCV infection which will be allowed).

7. A history or evidence of cardiovascular risk including any of the following:

1. A QTc interval ≥ 500 ms at screening

2. A history or evidence of current clinically significant uncontrolled arrhythmias;
Exception: Subjects with atrial fibrillation controlled for > 30 days prior to
randomization are eligible.

3. A history (within 6 months prior to randomization) of acute coronary syndromes
(including myocardial infarction or unstable angina), coronary angioplasty

4. A history or evidence of current ≥Class II congestive heart failure as defined by
the New York Heart Association (NYHA) guidelines

5. Treatment refractory hypertension defined as a blood pressure of systolic> 150
mmHg and/or diastolic > 100 mm Hg which cannot be controlled by antihypertensive
therapy;

6. Patients with intra-cardiac defibrillators or permanent pacemakers;

8. A history or current evidence/risk of retinal vein occlusion (RVO) or central serous
retinopathy (CSR) including:

a. Presence of predisposing factors to RVO or CSR (e.g., uncontrolled glaucoma or
ocular hypertension, uncontrolled hypertension, uncontrolled diabetes mellitus, or a
history of hyperviscosity or hypercoagulability syndromes)

9. Females who are nursing

10. A known diagnosis of Wilson's disease.

11. Patients with clinical symptoms consistent with active gastritis.

12. Patients with a condition that, in the opinion of the investigator, would interfere
with the absorption of oral medication will be excluded from the study.

13. Patients requiring iron supplementation will be excluded.