Study of D3S-002 as Monotherapy in Adult Subjects With Advanced Solid Tumors With MAPK Pathway Mutations

Inclusion:

• Subjects must have a histologically or cytologically confirmed metastatic or locally advanced solid tumor with evidence of progressive disease.

• Subjects must have documented mitogen-activated protein kinase (MAPK) pathway mutation(s) within the last 5 years identified by a local test on tumor tissue or blood (eg, rat sarcoma (RAS), rapidly accelerated fibrosarcoma (RAF), and MAPK kinase (MAPKK) mutations).

• Subjects must be refractory to or intolerable with standard treatment, or have no available standard of care.

• Subject must have Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.

• Subject must have adequate organ and marrow function within the screening period.

Exclusion:

• Subject has any prior treatment with other treatments without adequate washout periods as defined in the protocol.

• Subject has uncontrolled intercurrent illness, including but not limited to, ongoing or active infection, uncontrolled or significant cardiovascular disease, serious chronic gastrointestinal conditions associated with diarrhea, or psychiatric illness/social situations that would limit compliance with study requirements, substantially increase risk of incurring AEs, or compromise the ability of the subject to give written informed consent.

• Subject has unresolved treatment-related toxicities from previous anticancer therapy of NCI CTCAE Grade ≥2 (with exception of vitiligo or alopecia).

• Subject has active gastrointestinal disease or other that could interfere significantly with the absorption, distribution, metabolism, or excretion of oral therapy.

• Any concurrent chemotherapy, immunotherapy, targeted therapy, cell therapy, biologic or hormonal therapy and any medical devices for cancer treatment.