Purpose

The purpose of this study is to evaluate the safety, tolerability, and preliminary activity of SQ3370 in patients with advanced solid tumors.

Condition

Eligibility

Eligible Ages
Over 18 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. Diagnosis of advanced soft tissue sarcoma or other solid tumors 2. Adequate hematologic, hepatic, renal, and coagulation function 3. ECOG performance status score 0-1 4. Tumor is the type where published clinical data would suggest that anthracyclines have cytotoxic activity 5. Injectable tumor present Phase 1:

Exclusion Criteria

  1. Prior exposure to 300 mg/m^2 of Dox HCl or DOXIL / CAELYX ® or 600 mg/m^2 of Epirubicin HCl 2. Congestive heart failure (CHF), severe myocardial insufficiency, or cardiac arrhythmia 3. Any of the following within 28 days prior to Cycle 1 Day 1: - Major surgery, as defined by the Investigator - Radiotherapy - Chemotherapy, immunotherapy and/or anticancer therapy (except for small molecule kinase inhibitors, which are 6 elimination half-lives) 4. Trastuzumab or trastuzumab emtansine dosed within 7 months prior to Cycle 1 Day 1. 5. Any transfusion within 14 days prior to Cycle 1 Day 1. 6. Pregnant or breast-feeding women. 7. Known active CNS metastases and/or carcinomatous meningitis or symptomatic brain metastasis. Participants with previously treated brain metastases may participate provided they are radiologically stable 8. History of allergic reactions attributed to Dox or other anthracyclines, NaHA, hyaluronic acid, or gram-positive bacterial proteins 9. History or evidence of clinically unstable/uncontrolled disorder, condition, or disease Phase 2a Expansion Group 1 (Extremity STS): Inclusion 1. Patients with unresectable soft tissue sarcomas of the extremity AJCC Stage III OR select IV (=>5 cm injectable tumors) locally advanced and or metastatic, not amendable to primary surgical intervention according to the consensus of a multidisciplinary treatment team, determined prior to screening. 2. High grade STS, Grade 2/3, with an assessable/injectable lesion of at least diameter ≥5 cm by RECIST 1.1 criteria 3. No prior chemotherapy for STS, or radiation to affected limb Phase 2a Expansion Group 1 (Extremity STS): Exclusion 1. Uncontrolled pain related to tumor 2. Open wounds or tissue necrosis related to tumor mass 3. Compartment syndrome or impending compartment syndrome Phase 2a Expansion Group 2 (Unresectable STS): Inclusion 1. Locally advanced or metastatic, unresectable, soft-tissue sarcoma of intermediate or high grade with measurable disease. 2. Life expectancy >12 weeks (about 3 month) Phase 2a Expansion Group 2 (Unresectable STS): Exclusion 1. Prior exposure to anthracyclines 2. Treatment naive extremity tumors Phase 2a Expansion Group 3a (Head and Neck): Inclusion 1. Patients with histologically or cytologically confirmed squamous-cell carcinoma of the head and neck (HNSCC) who meet any of the following a) confirmed relapsed HNSCC or b) metastatic at initial presentation HNSCC 2. Patients who may have received two or less systemic regimens (therapies include chemotherapy and/or immunotherapy) Phase 2a Expansion Group 3a (Head and Neck): Exclusion 1. Airway obstruction by tumor mass that requires clinical intervention 2. Prior treatment with anthracyclines

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Parallel Assignment
Intervention Model Description
Phase 1 dose escalation part of the study was done sequentially. The Phase 2 part of the study will be done in parallel between the four groups.
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Dose Escalation Cohort (10 mL SQL70)
Participants will receive 10 mL of SQL70 biopolymer injected intratumorally on Day 1 of each 21-day cycle into a single lesion and then receive escalating doses of SQP33 protodrug administered IV from Day 1 through Day 5 (5 doses) of each 21-day cycle.
  • Drug: SQ3370
    SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
Experimental
Dose Escalation Cohort (20 mL SQL70)
Participants will receive 20 mL of SQL70 biopolymer injected intratumorally on Day 1 of each 21-day cycle into a single lesion and then receive escalating doses of SQP33 protodrug administered IV from Day 1 through Day 5 (5 doses) of each 21-day cycle.
  • Drug: SQ3370
    SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
Experimental
Cohort A
Participants will receive SQL70 biopolymer injected intratumorally on Day 1 of each 21-day cycle into a single lesion as determined in Dose Escalation. Then will receive a lower dose than RP2D of SQP33 protodrug administered IV from Day 1 through Day 5 (5 doses) of each 21-day cycle.
  • Drug: SQ3370
    SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
Experimental
Phase 2a Expansion Group 1 (Extremity STS)
Participants with soft tissue sarcomas of the extremity AJCC Stage III OR IV (>5 cm injectable tumors locally advanced and or metastatic, not amendable to primary surgical intervention and who are anthracycline naïve.
  • Drug: SQ3370
    SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
Experimental
Phase 2a Expansion Group 2 (Unresectable STS)
Locally advanced, unresectable or metastatic, soft tissue sarcomas who are anthracycline naïve.
  • Drug: SQ3370
    SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
Experimental
Phase 2a Expansion Group 3a (Head and Neck)
Participants with histologically or cytologically confirmed relapsed or metastatic squamous-cell carcinoma of the head and neck, who have exhausted curative intent therapies or patients with distant metastases who may have received one or less chemotherapy regimen.
  • Drug: SQ3370
    SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin

Recruiting Locations

Washington University in St. Louis and nearby locations

Washington University in St. Louis
St Louis 4407066, Missouri 4398678 63110
Contact:
Principal Investigator
415-800-1376
clinicalstudies@shasqi.com

More Details

NCT ID
NCT04106492
Status
Recruiting
Sponsor
Shasqi, Inc.

Study Contact

Shasqi Clinical Operations
415-800-1376
clinicalstudies@shasqi.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.