Breast Cancer Clinical Trial

Phase 1a and Phase 2 Study for Safety, Preliminary Efficacy, PK and PD of ST-067

Summary

This is a multicenter Phase 1a open-label, dose escalation study, and a Phase 2 study of ST-067. Phase 1a is a first-in-human (FIH) dose escalation study in patients aged 18 years or older diagnosed with solid tumors who have exhausted available standard. Phase 2 will enroll patients aged 18 years or older diagnosed with the following solid tumors: melanoma, renal cell carcinoma, triple negative breast cancer, non-small cell lung cancer, squamous cell carcinoma of the head and neck, and microsatellite instability-high tumors.

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Full Description

Phase 1a is designed to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of ST067, administered by subcutaneous (SC) or intravenous (IV) dosing, in subjects with relapsed or refractory solid tumors, as well as to determine the MTD and recommended Phase 2 dose of ST067, administered SC with obinutuzumab (Gazyva®) as pretreatment in subjects with relapsed or refractory solid tumors using a modified toxicity probability interval (mTPI) design. There will be evaluations of ST-067 PK and PD effects.

Phase 2 will evaluate the preliminary efficacy of ST-067 administered at the RP2D to patients with the following tumor types. A Simon 2 stage design is used to calculate the sample size and early stopping rules will be employed in the event of lack of efficacy in any of the cohorts. RECIST 1.1 will be used to assess tumor response every 8-12 weeks.

Melanoma (n=28)
Renal cell carcinoma (n=25)
Triple-negative best cancer (n=25)
Non-small cell lung cancer (n=25)
squamous cell carcinoma of the head and neck (n=28)
MSI-Hi tumors (n=25)

A Simon 2 stage design is used to calculate the sample size and early stopping rules will be employed in the event of lack of efficacy in any of the cohorts. RECIST 1.1 will be used to assess tumor response every 8-12 weeks.

Safety will be assessed for each patient throughout the study.

View Eligibility Criteria

Eligibility Criteria

Inclusion Criteria:

1. 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

For Phase 1a, the following solid tumors are allowed: Melanoma, Merkel cell, RCC, urothelial, NSCLC,TNBC, SCCHN, microsatellite instability high, high tumor mutation burden (Hi TMB) or mismatch repair deficient, gastric, cervical, endometrial, cutaneous squamous, small cell lung, esophageal, hepatocellular carcinoma and platinum resistant ovarian cancer.

For patients who have developed disease progression through standard therapy, or

For patients whom standard of care therapy that prolongs survival is unavailable or unsuitable (according to the investigator and after consultation with the Medical Monitor) For Phase 1 combination therapy dose escalation, the following solid tumors are allowed: Melanoma, Merkel cell, RCC, urothelial, NSCLC (with no EGFR, TRK receptor, or ALK positive mutations/fusions), TNBC, SCCHN, MSI-Hi tumors, Hi TMB or mismatch repair deficient, gastric, cervical, endometrial, cutaneous squamous, small cell lung, esophageal, and HCC

TNBC is diagnosed in a tumor which does not express estrogen receptor or progesterone receptor, is not human epidermal growth factor receptor 2 (HER2) 3+ on IHC or is negative by fluorescence in situ hybridization (FISH).
MSI high tumor should have mutations in 30% or more microsatellites by PCR or be negative for MSH1/2/6 or PMS-2 by IHC.
Hi-TMB high tumor has 10 mut/Mb or greater calculated from whole genome sequencing or whole exome sequencing

For Phase 2, the following solid tumors are allowed:

Melanoma, RCC, TNBC, NSCLC, SCCHN, and MSI-Hi tumors

Has at least 1 measurable lesion per RECIST 1.1 criteria which has not been biopsied or received prior irradiation
Has an accessible tumor for biopsy pre- and on-treatment (mandatory).

Exclusion Criteria:

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)
Evidence of an ongoing systemic bacterial, fungal, or viral infection
Has received a live vaccine within 30 days
Major surgery within 4 weeks
Prior solid organ or bone marrow progenitor cell transplantation
Prior high dose chemotherapy requiring stem cell rescue
History of active autoimmune disorders
Ongoing immunosuppressive therapy, including systemic or enteric corticosteroids.
Treatment with an approved, systemic anticancer therapy or an investigational agent within 4 weeks of Day 1
A positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral test within 28 days prior to dosing, unless there is Investigator-confirmed clinical recovery on or before C1D1
Subjects with adrenal insufficiency

Subjects with any chemistry or hematology laboratory values that are ≥Grade 2

Additional exclusion criteria for Phase 1 combination therapy only:

Presence of known active CNS metastases and/or carcinomatous meningitis. Subjects with previously treated brain metastases may participate provided they are radiologically stable, i.e., without evidence of progression for at least 4 weeks by repeat imaging, clinically stable, and without requirement of steroid treatment for at least 14 days prior to first dose of study treatment.
Prior radiotherapy within 2 weeks of start of study treatment or history of radiation pneumonitis.
Presence of an active documented autoimmune disease that has required systemic treatment in the past 2 years (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g., thyroxine or insulin) is not considered a form of systemic treatment and is allowed. Subjects may use topical and/or inhaled corticosteroids. However, subjects with adrenal insufficiency on replacement doses of steroids are not allowed.
Prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX40, CD137), and was discontinued from that treatment due to a Grade 3 or higher irAE
Severe hypersensitivity (≥Grade 3) to pembrolizumab and/or any of its excipients. Subjects who have been retreated after such a reaction may be allowed after discussion with the Simcha Medical Monitor
History of (non-infectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease
NSCLC subjects that have received radiation therapy to the lung that is >30Gy within 6 months of the first dose of study treatment

Study is for people with:

Breast Cancer

Phase:

Phase 1

Estimated Enrollment:

316

Study ID:

NCT04787042

Recruitment Status:

Recruiting

Sponsor:

Simcha IL-18, Inc.

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There are 7 Locations for this study

See Locations Near You

HonorHealth Research Institute
Scottsdale Arizona, 85258, United States More Info
Justin Moser, MD
Contact
Sarah Cannon Research Institute at HealthONE
Denver Colorado, 80218, United States More Info
Gerald Falchook, MD, MS
Contact
Yale Cancer Center
New Haven Connecticut, 06519, United States More Info
Harriet Kluger, MD
Contact
Moffitt Cancer Center
Tampa Florida, 33612, United States More Info
Ahmad Tarhini, MD
Contact
Massachusetts General Hospital
Boston Massachusetts, 02114, United States More Info
Ryan Sullivan, MD
Contact
Roswell Park Cancer Institute
Buffalo New York, 14263, United States More Info
Igor Puzanov, MD
Contact
Providence Cancer Institute Franz Clinic
Portland Oregon, 97213, United States More Info
Matthew Taylor, MD
Contact

How clear is this clinincal trial information?

Study is for people with:

Breast Cancer

Phase:

Phase 1

Estimated Enrollment:

316

Study ID:

NCT04787042

Recruitment Status:

Recruiting

Sponsor:


Simcha IL-18, Inc.

How clear is this clinincal trial information?

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