MC# 22-19

Inclusion Criteria For All Phases and Cohorts:

1. Recovered from toxicity to prior anti-cancer therapy
2. Adequate bone marrow and organ function
3. Have no known active or symptomatic central nervous system (CNS) disease

Cohort-Specific Inclusion Criteria: In addition to the inclusion criteria listed above, the following criteria apply for enrollment into specific cohorts.

• Phase 1 (Monotherapy Study; Advanced Solid Tumors)
  1. Patients with advanced solid tumors that have progressed during or after treatment with approved therapies or for which there is no standard effective therapy available
  2. Life expectancy of > 3 months
  3. Eastern Cooperative Oncology Group Performance Status ≤ 2
  4. Measurable or non-measurable disease
• Phase 1b (Combination Study with Enzalutamide or Olaparib)
  1. Life expectancy of > 3 months
  2. Eastern Cooperative Oncology Group Performance Status ≤ 2
  3. Measurable or non-measurable disease
  4. One of the following tumor types:
     1. Ovarian: Platinum-resistant OR platinum- refractory high grade serous ovarian, fallopian, or primary peritoneal cancer in the relapsed setting.  Patients with BRCA mutation or who are otherwise positive for homologous recombination deficiency must have received prior treatment with a PARP inhibitor.
     2. Pancreatic: Progression on or after treatment with at least one line of systemic chemotherapy in the advanced setting.  Patients with BRCA mutation must have received prior treatment with a PARP inhibitor.
     3. Prostate: mCRPC with progression on or after treatment with at least one androgen receptor-directed therapy.  Patients with HRR gene mutation must have received prior treatment with a PARP inhibitor.
     4. Breast: Triple-negative breast cancer (TNBC) with progression on or after treatment with at least one line of systemic chemotherapy in the advanced setting.  Patients with BRCA mutation must have received prior treatment with a PARP inhibitor.
     5. For all tumor types: Patients will be allowed in the study regardless of their BRCA/HRR status
• Phase 2 (Monotherapy Study) and Phase 2b (Combination Study with Enzalutamide or Olaparib)
  1. Life expectancy of > 6 months
  2. Phase 2b (Select Cohorts Only): At least one measurable lesion defined by standard criteria
  3. Eastern Cooperative Oncology Group Performance Status ≤ 1
  4. One of the following tumor types:
     1. Ovarian: Platinum-resistant or platinum- refractory high grade serous ovarian, fallopian, or primary peritoneal cancer in the relapsed setting.  Patients with BRCA mutation or who are otherwise positive for homologous recombination deficiency must have received prior treatment with a PARP inhibitor.
     2. Pancreatic: Progression on or after treatment with at least one line of systemic chemotherapy in the advanced setting.  Patients with BRCA mutation must have received prior treatment with a PARP inhibitor.
     3. Prostate:
        • Phase 2 Monotherapy Only: mCRPC with progression on or after treatment with at least one androgen receptor (AR)-directed therapy, and at least one prior treatment with taxane chemotherapy for castration-resistant disease
        • Phase 2b Combination Only: mCRPC with progression on or after treatment with at least one AR-directed therapy, and no prior taxane chemotherapy for castration-resistant disease.  Patients with a deleterious or suspected deleterious germline or somatic HRR gene mutation must have received prior treatment with a PARP inhibitor.
     4. Breast: TNBC with progression on or after treatment with at least one line of systemic chemotherapy in the advanced setting.  Patients with BRCA mutation must have received prior treatment with a PARP inhibitor.
     5. For all tumor types: Patients will be allowed in the study regardless of their BRCA/HRR status

Exclusion Criteria For All Phases and Cohorts:

1. Have received chemotherapy, hormonal therapy (except for ongoing luteinizing hormone-releasing hormone [LHRH] analogs in male patients and premenopausal women), radiation, or biological anti-cancer therapy within 14 days prior to the first dose of NUV-868
2. Received treatment with an investigational agent for any indication within 14 days for non-myelosuppressive agent or 21 days or < 5 half-lives, whichever is longer, for myelosuppressive agent prior to the first dose of study treatment
3. Requires medications that are known to be strong (or moderate for olaparib) inducers and/or strong (or moderate for olaparib) inhibitors of CYP3A4/5 enzymes
4. Female patients who are pregnant of breastfeeding

Cohort-Specific Exclusion Criteria: In addition to the exclusion criteria listed above, the following criteria apply for enrollment into specific cohorts:

• Phase 1b, for the combination of NUV-868 + enzalutamide only
  1. Requires medications that are known to be strong CYP2C8 inhibitor
  2. Received enzalutamide within 60 days prior to enrollment
• Phase 2b, for the combination of NUV-868 + enzalutamide only:
  1. Requires medications that are known to be strong CYP2C8 inhibitor
  2. Prior therapy with enzalutamide