Purpose

To evaluate safety, immunogenicity and anti-tumor responses of intradermally delivered SNS-301 added to ongoing checkpoint inhibitor therapy in ASPH+ locally advanced unresectable or metastatic/recurrent squamous cell carcinoma of the head and neck (SCCHN) patients.

Condition

Eligibility

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

Inclusion Criteria

  1. Signed informed consent.
  2. Be 18 years of age or older.
  3. Have histologically or cytologically documented locally advanced unresectable or metastatic/recurrent ASPH+ SCCHN and currently receiving pembrolizumab or nivolumab for a minimum of 12 weeks with best response of stable disease (SD) or first evidence of progressive disease (PD) based on RECIST 1.1.
  4. Patients receiving first-line pembrolizumab monotherapy prior to this study must be PD-L1 positive.
  5. Patients on nivolumab therapy must be willing to switch over to pembrolizumab therapy.
  6. Have demonstrated intra-tumoral ASPH expression by IHC.
  7. Have measurable disease by RECIST 1.1.
  8. Eastern Cooperative Oncology Group (ECOG) Performance Scale 0-1.
  9. Have a life expectancy of ≥ 3 months.
  10. Be willing to provide a pre-treatment tissue sample.
  11. Demonstrate adequate organ function: hematological, renal, hepatic, coagulation parameters.
  12. For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use two highly effective contraceptive methods during the treatment period and for at least 180 days after the last dose of study treatment. For male patients: Agree that during the period specified above, men will not father a child. Male patients must remain abstinent, must be surgically sterile during the treatment period and for at least 180 days after the last dose of study treatment.

Exclusion Criteria

  1. Any approved anti-cancer therapy including chemotherapy, targeted small molecule therapy or radiation therapy within 2 weeks prior to trial Day 0.
  2. Participated on a clinical trial of an investigational agent and/or investigational device within 28 days prior to Day 0.
  3. Uncontrolled tumor-related pain.
  4. Malignancies other than indications open for enrollment within 3 years prior to Day 0.
  5. History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins.
  6. Known hypersensitivity allergy or contraindication to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the PD-1/PD-L1 inhibitor formulation.
  7. Active or history of autoimmune disease or immune deficiency.
  8. History or any evidence of interstitial lung disease.
  9. History of HIV. HIV antibody testing recommended per investigator's clinical suspicion.
  10. Active hepatitis B (hepatitis B surface antigen reactive) or active hepatitis C (HCV qualitative RNA detected); testing recommended per investigator's clinical suspicion.
  11. Severe infections within 4 weeks prior to enrollment.
  12. Received therapeutic oral or IV antibiotics within 2 weeks prior to Day 0.
  13. History or current evidence of any condition, therapy or laboratory abnormality that in the opinion of the treating investigator might confound the results of the trial.
  14. Prior allogeneic stem cell or solid organ transplant.
  15. Known previous or ongoing, active psychiatric or substance abuse disorders that would interfere with the requirements of the trial.
  16. Treatment with systemic immunomodulating agents (including but not limited to IFNs, IL-2, ipilimumab) within 6 weeks or five half-lives of the drug, whichever is shorter, prior to first dose.
  17. Treatment with systemic immunosuppressive medication within 2 weeks prior to initiation of study treatment, or anticipation of need for systemic immunosuppressive medication during the course of the study.

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Intervention Model Description
Open label
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
SNS-301 added to pembrolizumab
SNS-301 Pembrolizumab
  • Drug: SNS-301
    SNS-301 (1x1011 dose/1ml) ID injection every 3 weeks for 4 doses then every 6 weeks for 6 additional doses, and thereafter every 12 weeks up to 24 months.
  • Drug: Pembrolizumab
    Pembrolizumab (200 mg dose) IV infusion will be administered over 30 minutes every 3 weeks up to 24 months.
    Other names:
    • Keytruda

Recruiting Locations

Georgetown University
Washington, District of Columbia 20057
Contact:
Central Contact

More Details

Status
Recruiting
Sponsor
Sensei Biotherapeutics, Inc.

Study Contact

Alice Drumheller
2404548027
adrumheller@senseibio.com

Detailed Description

This is a Phase 1/2, open-label, multi-center trial to evaluate the safety, immunogenicity and preliminary clinical efficacy of SNS-301 delivered intradermally in addition to pembrolizumab in patients with ASPH+ locally advanced unresectable or metastatic/recurrent SCCHN. The trial population consists of patients with ASPH+ locally advanced unresectable or metastatic/recurrent SCCHN who are currently receiving pembrolizumab or nivolumab therapy. Patients must have a best response of stable disease (SD) or first evidence of unconfirmed progressive disease (PD) after a minimum of 12 weeks of pembrolizumab or nivolumab therapy. Prior chemotherapy is allowed but not required. Patients receiving nivolumab will be switched over to pembrolizumab at the time of entering this study.

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.