Study Evaluating GZ17-6.02 in Patients With Advanced Solid Tumors or in Combination With Capecitabine in Metastatic Hormone Receptor Positive Breast Cancer

This Phase I/Ib study is a Multicenter, Open-label, Dose-Escalation, Safety, Pharmacodynamic and Pharmacokinetic Study of GZ17-6.02 Monotherapy and in Combination with Capecitabine, Given Orally on a Daily Schedule in Patients with Advanced Solid Tumors or Lymphoma

This study will evaluate the safety, pharmacokinetics, and pharmacodynamic effects of a novel anti-cancer drug, GZ17-6.02 administered to patients with advanced solid tumors or lymphoma, which have progressed after receiving standard/approved therapy or where there is no approved therapy.

This study will determine the maximum tolerated dose (MTD) and the dose limiting toxicities (DLT) of GZ17-6.02 monotherapy and in combination with standard-of-care oncology treatments and to establish the dose of GZ17-6.02 recommended for future monotherapy and combination therapies phase II oncology clinical studies.

Eligibility Criteria:
General Inclusion Criteria:

* Patients with a pathologically confirmed diagnosis of advanced solid tumors or lymphoma.
* Tumor progression after receiving standard/approved therapies which may include chemotherapy, targeted agents, radio-immuno conjugates, check point inhibitors, where there is no approved therapy; or the patient is intolerant of standard of care or the patient declines standard of care treatment
* One or more metastatic tumors measurable, or evaluable, per RECIST v1.1 Criteria for solid tumors and Lugano Criteria for lymphoma
* Have an Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 1
* Life expectancy of at least 3 months
* Age 18 years
* Signed, written IRB-approved informed consent
* A negative pregnancy test (if female)
* Acceptable liver function:

  * Bilirubin ≤ 1.5 times upper limit of normal
  * AST (SGOT), ALT (SGPT) and Alkaline phosphatase ≤ 2.5 times upper limit of normal (if liver metastases are present, then ≤ 5 x ULN is allowed)
* Acceptable renal function:

  o Serum creatinine ≤ 1.5 times institutional ULN, OR calculated creatinine clearance ≥ 60 mL/min/1.73 m2 for patients with creatinine levels above institutional normal.
* Acceptable hematologic status:

  * Granulocyte ≥ 1500 cells/mm3
  * Platelet count ≥ 100,000 (plt/mm3)
  * Hemoglobin ≥ 9 g/dL
* Urinalysis:

  o No clinically significant abnormalities
* Acceptable coagulation status (for patients on warfarin or other anti-coagulants, a PT/PTT considered by the PI as therapeutically appropriate will be allowed):

  * PT within ≤ 1.5 times normal limits
  * PTT within ≤ 1.5 times normal limits
* For men and women of child-producing potential, the use of effective contraceptive methods during the study
* Fasting glucose ≤ 180 mg/dL
* Albumin ≥ 3.0 g/dL within seven days of initiating protocol treatment

For patients in the GZ17-6.02 plus capecitabine Phase 1b Expansion Cohort 2 (metastatic breast cancer):

* Pathologically confirmed diagnosis of HER2-negative and Hormone Receptor (HR) (estrogen receptor \[ER\] and/or progesterone receptor)-positive metastatic breast cancer;
* Had ≤ 1 prior treatment (not including neoadjuvant or adjuvant treatment);
* Are naïve to capecitabine but not necessarily to fluorouracil (5 FU);
* Eligible for standard-of-care treatment with capecitabine monotherapy.
* Patients in Expansion Cohort 2 with bone-only metastatic disease must have one or more lytic or a mixed lytic-blastic lesions that can be assessed by computed tomography (CT) scan or magnetic resonance imaging (MRI).

For patients in GZ17-6.02 plus capecitabine Phase 1b Expansion Cohort 3 (metastatic colorectal cancer):

* Pathologically confirmed diagnosis of metastatic colorectal cancer;
* Had ≤ 2 prior treatments (not including neoadjuvant or adjuvant treatment);
* Are naïve to capecitabine but not necessarily to 5 FU;
* Eligible for standard-of-care treatment with capecitabine monotherapy.

General Exclusion Criteria: (All patients, unless otherwise specified):

* New York Heart Association Class III or IV, cardiac disease, myocardial infarction within the past 6 months, unstable arrhythmia, or evidence of ischemia on ECG.
* Currently taking MAOIs
* Baseline QTc exceeding 450 msec in males, 470 msec in females (using the Fridericia's formula) and/or patients receiving class 1A or class III antiarrhythmic agents;
* Known active, uncontrolled bacterial, viral, or fungal infections requiring systemic therapy;
* Pregnant or nursing women.
* NOTE: Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; or abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
* Treatment with radiation therapy or surgery within 1 month prior to study entry.
* Treatment with chemotherapy, targeted therapeutics (e.g. tyrosine kinase inhibitors, therapeutic antibodies, etc), or investigational therapies within 1 month, or 5 half-lives (whichever is shorter), prior to study entry (6 weeks for nitrosoureas or mitomycin C). For radiopharmaceuticals, within 1 month unless hematopoietic recovery has not returned to pretreatment baseline;
* Unwillingness or inability to comply with procedures required in this protocol;
* Known active infection with HIV, HTLV-1, hepatitis B, hepatitis C or other chronic viral infections that could interfere with the interpretation of study data;
* Serious nonmalignant disease (e.g., hydronephrosis, liver failure, or other conditions) that could compromise protocol objectives in the opinion of the investigator and/or the sponsor.
* Patients who are currently receiving any other investigational agent;
* Primary Central Nervous System (CNS) malignancies;
* Active CNS metastases requiring treatment or radiotherapy, or which have not been confirmed stable on radiographic imaging for ≥30 days prior to C1D1;
* Patients requiring steroids for neurological signs and symptom stabilization.
* Patients who are unable to successfully discontinue all prohibited medications listed in Appendix 6;
* Patients must not have received a transfusion (platelets or red blood cells) ≤ 2 weeks prior to initiating protocol therapy.

For patients in the GZ17-6.02 monotherapy Dose Escalation Cohort and patients in Expansion Cohort 1:

• Patients with cow's milk allergy or with galactosemia

Phase 1b Expansion Cohort 2 (metastatic breast cancer) and Expansion Cohort 3 (metastatic colorectal cancer):

* Any history of coronary artery disease is exclusionary; New York Heart Association Class III or IV, cardiac disease, myocardial infarction within the past 6 months, unstable arrhythmia, or evidence of ischemia on the ECG.
* Any conditions or medications that are contraindicated with capecitabine dosing;
* Dihydropyrimidine dehydrogenase (DPD) deficiency;
* Known sensitivity to capecitabine or any of its components or to 5-FU ;
* Serious nonmalignant disease (e.g., hydronephrosis, liver failure, or other conditions) that could compromise protocol objectives in the opinion of the investigator and/or the sponsor

  o This includes prior gastrointestinal surgery that would interfere with the oral drug absorption.
* Malignancy other than metastatic breast cancer (Expansion Cohort 2) or metastatic colorectal cancer (Expansion Cohort 3) that required therapy within the preceding 5 years, other than adequately treated:

  * non-melanoma skin cancer or in situ cancer;
  * another cancer that has a very low risk of interfering with the safety or efficacy endpoints of the study, must be approved by the Sponsor medical team.