About this trial

This is a multiphase, multicenter study, which includes a Phase 1a open-label, dose escalation monotherapy study of ST-067 given as an SC injection with or without obinutuzumab \[Gazyva®\] pre-treatment, by IV infusion, and in combination with pembrolizumab. A Phase 2 monotherapy arm is also planned; the exact design of the Phase 2 study elements with respect to formulation and pre-treatment will be determined after completion of the Phase 1 study portion of the trial.

Eligibility criteria

Qualifiers

Male and female patients aged ≥18 years

Must provide written informed consent and any authorizations required by local law

Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

Have histologically or cytologically confirmed diagnosis of advanced/metastatic solid tumor

Disqualifiers

History of another malignancy

Known symptomatic brain metastases requiring >10 mg/day of prednisolone or equivalent

Significant cardiovascular disease (MI, thrombotic events,) within 6 months prior to study treatmentSignificant ECG abnormalities (Phase 1a and 2 monotherapy only) including unstable cardiac arrhythmia requiring medication, second-degree atrioventricular block type II, third degree AV

Any degree of respiratory compromise (from either malignant or non-malignant disease)

Trial design

Treatments tested in this trial

  • ST-067
  • Obinutuzumab 25 MG/1 ML Intravenous Solution [GAZYVA]
  • pembrolizumab

Treatment groups

316 Participants
are divided into 4 treatment groups

Locations

6
Arizona
HonorHealth Research Institute85258, Scottsdale United States
Colorado
Sarah Cannon Research Institute at HealthONE80218, Denver United States
Connecticut
Yale Cancer Center06519, New Haven United States
Florida
Moffitt Cancer Center33612, Tampa United States

Sponsors and collaborators

Simcha IL-18, Inc.

Lead sponsor

Merck Sharp & Dohme LLC

Collaborator