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Phase 1 Trial of PAN-301-1 (SNS-301) in Cancer Patients

Primary Purpose

Prostate Cancer

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
PAN-301-1
Sponsored by
Sensei Biotherapeutics, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Prostate Cancer

Eligibility Criteria

21 Years - 85 Years (Adult, Older Adult)MaleDoes not accept healthy volunteers

Inclusion Criteria:

  1. Signed and dated written Ethics Committee approved informed consent
  2. Men aged 21 to 85 years with a histologic diagnosis of prostate cancer with a biochemical relapse following definitive local therapy (RP or radiation therapy)
  3. Patients are not eligible or are unwilling to receive additional definitive therapy following relapse (either RP or radiation therapy)
  4. No prior cytotoxic chemotherapy for the current cancer
  5. Normal electrocardiogram (ECG) or ECG with no clinically significant findings as determined by the Principal Investigator
  6. Presence of biochemically relapsed prostate cancer defined as either: 1) PSA > 2 ng/mL 1 year following initial definitive treatment for prostate cancer: or, 2) PSA doubling time (greater than 0.2 ng/mL) < 12 months; or, 3) PSA velocity > 2 ng/mL/year at any time following radical prostatectomy or radiation therapy.
  7. Positive expression of HAAH in either archived tumor tissue (if available) or fresh serum
  8. No clinical or radiologic evidence of distant metastatic disease as measured by pelvic MRI or CT scan in addition to bone scan. These studies will need to be performed within 56 (+ 7 days) days prior to the start of the study.
  9. No history of immunosuppressive disease
  10. No evidence of active autoimmune disease. Active autoimmune disease is defined as any disease process that has specifically needed administration of immune suppressive and or cytoreductive therapy currently or within the last 1 year.
  11. Able and willing to comply with all study procedures

Exclusion criteria:

  1. PSA doubling time of < 3 months
  2. Participation in a clinical trial within 30 days prior to enrollment
  3. Prior major surgery or radiation therapy within 4 weeks of enrollment
  4. Any illness or condition that in the opinion of the Investigator may affect the safety of the patient or the evaluation of any study endpoint
  5. Screening blood counts of the following:

    Hematopoietic:

    Absolute neutrophil count < 1500/μL, Platelets < 100,000/μL, Hemoglobin < 9 g/dL;

    Liver/Metabolic:

    Alanine aminotransferase (ALT) and aspartate transaminase (AST) > 2.5 × ULN range, Total bilirubin > 2 × ULN, Albumin < 2.8 g/dL;

    Renal:

    Creatinine clearance < 50 mL/min as predicted by the Cockcroft-Gault formula

  6. Subjects whose partners are WOCBP must use an adequate method of birth control while on study drug and at least for 3 weeks after discontinuation of study drug
  7. Current or anticipated concomitant immunosuppressive therapy (excluding nonsystemic inhaled, topical skin and/or eye drop-containing corticosteroids)
  8. Any concurrent condition requiring the continued use of systemic steroids (see above) or the use of immunosuppressive agents including methotrexate. All other systemic corticosteroids must be discontinued at least 4 weeks prior to first study treatment
  9. Receipt of any blood product within 1 month of enrollment
  10. Receipt of any vaccine within 4 weeks of enrollment
  11. Active drug or alcohol use or dependence that, in the opinion of the Investigator, would interfere with adherence to study requirements
  12. Been imprisoned or compulsorily detained (involuntarily incarcerated) for treatment of either a psychiatric or physical (i.e. infectious disease) illness
  13. Patients who have a history of coagulopathies, thrombosis or who are receiving active anticoagulation for any condition, such as but not limited to, artificial heart valves, atrial fibrillation, etc.
  14. Any other conditions judged by the Investigator that would limit the evaluation of a subject

Sites / Locations

  • Urology Centers of Alabama
  • Dr. James J. Elist
  • GU Research Network/Urology Cancer Center
  • Carolina Urologic Research Center

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

PAN-301-1 (SNS-301) Vaccine

Arm Description

PAN-301-1 vaccine is administered intradermally in 3 cohorts of patients in a dose escalation schema every 21 days

Outcomes

Primary Outcome Measures

Safety Assessed by Development of Adverse Events and Dose-limiting Toxicity to Determine Maximum Tolerated Dose

Secondary Outcome Measures

Safety Assessed by Administration Site Reactions, Abnormal Laboratory Values and/or Adverse Events

Full Information

First Posted
February 16, 2017
Last Updated
October 15, 2021
Sponsor
Sensei Biotherapeutics, Inc.
Collaborators
Accelovance
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1. Study Identification

Unique Protocol Identification Number
NCT03120832
Brief Title
Phase 1 Trial of PAN-301-1 (SNS-301) in Cancer Patients
Official Title
Phase 1, Open Label Trial to Evaluate the Safety and Immunogenicity of PAN-301-1 in Cancer Patients
Study Type
Interventional

2. Study Status

Record Verification Date
October 2021
Overall Recruitment Status
Completed
Study Start Date
December 2016 (undefined)
Primary Completion Date
December 2018 (Actual)
Study Completion Date
December 2018 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Sensei Biotherapeutics, Inc.
Collaborators
Accelovance

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a Phase I, open-label, parallel design study of PAN-301-1 (SNS-301), a HAAH directed nanoparticle vaccine, given intradermally in cohorts of patients with biochemically relapsed prostate cancer, using a fixed dose escalation schema every 21 days.
Detailed Description
Human aspartyl-asparaginyl-β-hydroxylase (HAAH), also known as aspartate-β-hydroxylase, is an ~86 kDa type 2 transmembrane protein that belongs to the α-ketoglutarate-dependent dioxygenase family. It is a highly conserved enzyme, which catalyzes the hydroxylation of aspartyl and asparaginyl residues in epidermal growth factor-like domains of proteins including Notch and homologs. HAAH was initially identified in a novel screen to identify cell surface proteins up-regulated in liver cancer. It has subsequently been detected in a diverse array of solid and blood cancers, including: liver, bile duct, brain, breast, colon, prostate, ovary, pancreas, and lung cancers as well as leukemia. HAAH is not found in significant quantities in normal tissue or in proliferative disorders. The investigators have designed a bacteriophage lambda system to display HAAH peptides fused at the C terminus of the head protein gpD of phage lambda. The phage carry 200-300 copies of the gpD protein on their head and thus display many copies of an approximately 25 kDa molecular weight fragment of HAAH on their surface. The drug substance is one of these HAAH bacteriophage lambda constructs: HAAH-1λ (PAN-301-1). This study evaluates the safety and immunogenicity of the PAN-301-1 vaccine in patients with biochemically-relapsed prostate cancer.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Prostate Cancer

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Sequential Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
12 (Actual)

8. Arms, Groups, and Interventions

Arm Title
PAN-301-1 (SNS-301) Vaccine
Arm Type
Experimental
Arm Description
PAN-301-1 vaccine is administered intradermally in 3 cohorts of patients in a dose escalation schema every 21 days
Intervention Type
Biological
Intervention Name(s)
PAN-301-1
Other Intervention Name(s)
SNS-301
Primary Outcome Measure Information:
Title
Safety Assessed by Development of Adverse Events and Dose-limiting Toxicity to Determine Maximum Tolerated Dose
Time Frame
Through the 21 day interval after the first dose of vaccine
Secondary Outcome Measure Information:
Title
Safety Assessed by Administration Site Reactions, Abnormal Laboratory Values and/or Adverse Events
Time Frame
Through study completion, an average of 3 months. Patients were able to continue on treatment with one patient receiving approximately 15 months of treatment.

10. Eligibility

Sex
Male
Gender Based
Yes
Gender Eligibility Description
Must be male subject having diagnosis of prostate cancer
Minimum Age & Unit of Time
21 Years
Maximum Age & Unit of Time
85 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Signed and dated written Ethics Committee approved informed consent Men aged 21 to 85 years with a histologic diagnosis of prostate cancer with a biochemical relapse following definitive local therapy (RP or radiation therapy) Patients are not eligible or are unwilling to receive additional definitive therapy following relapse (either RP or radiation therapy) No prior cytotoxic chemotherapy for the current cancer Normal electrocardiogram (ECG) or ECG with no clinically significant findings as determined by the Principal Investigator Presence of biochemically relapsed prostate cancer defined as either: 1) PSA > 2 ng/mL 1 year following initial definitive treatment for prostate cancer: or, 2) PSA doubling time (greater than 0.2 ng/mL) < 12 months; or, 3) PSA velocity > 2 ng/mL/year at any time following radical prostatectomy or radiation therapy. Positive expression of HAAH in either archived tumor tissue (if available) or fresh serum No clinical or radiologic evidence of distant metastatic disease as measured by pelvic MRI or CT scan in addition to bone scan. These studies will need to be performed within 56 (+ 7 days) days prior to the start of the study. No history of immunosuppressive disease No evidence of active autoimmune disease. Active autoimmune disease is defined as any disease process that has specifically needed administration of immune suppressive and or cytoreductive therapy currently or within the last 1 year. Able and willing to comply with all study procedures Exclusion criteria: PSA doubling time of < 3 months Participation in a clinical trial within 30 days prior to enrollment Prior major surgery or radiation therapy within 4 weeks of enrollment Any illness or condition that in the opinion of the Investigator may affect the safety of the patient or the evaluation of any study endpoint Screening blood counts of the following: Hematopoietic: Absolute neutrophil count < 1500/μL, Platelets < 100,000/μL, Hemoglobin < 9 g/dL; Liver/Metabolic: Alanine aminotransferase (ALT) and aspartate transaminase (AST) > 2.5 × ULN range, Total bilirubin > 2 × ULN, Albumin < 2.8 g/dL; Renal: Creatinine clearance < 50 mL/min as predicted by the Cockcroft-Gault formula Subjects whose partners are WOCBP must use an adequate method of birth control while on study drug and at least for 3 weeks after discontinuation of study drug Current or anticipated concomitant immunosuppressive therapy (excluding nonsystemic inhaled, topical skin and/or eye drop-containing corticosteroids) Any concurrent condition requiring the continued use of systemic steroids (see above) or the use of immunosuppressive agents including methotrexate. All other systemic corticosteroids must be discontinued at least 4 weeks prior to first study treatment Receipt of any blood product within 1 month of enrollment Receipt of any vaccine within 4 weeks of enrollment Active drug or alcohol use or dependence that, in the opinion of the Investigator, would interfere with adherence to study requirements Been imprisoned or compulsorily detained (involuntarily incarcerated) for treatment of either a psychiatric or physical (i.e. infectious disease) illness Patients who have a history of coagulopathies, thrombosis or who are receiving active anticoagulation for any condition, such as but not limited to, artificial heart valves, atrial fibrillation, etc. Any other conditions judged by the Investigator that would limit the evaluation of a subject
Facility Information:
Facility Name
Urology Centers of Alabama
City
Homewood
State/Province
Alabama
ZIP/Postal Code
35209
Country
United States
Facility Name
Dr. James J. Elist
City
Beverly Hills
State/Province
California
ZIP/Postal Code
90211
Country
United States
Facility Name
GU Research Network/Urology Cancer Center
City
Omaha
State/Province
Nebraska
ZIP/Postal Code
68130
Country
United States
Facility Name
Carolina Urologic Research Center
City
Myrtle Beach
State/Province
South Carolina
ZIP/Postal Code
29572
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

Phase 1 Trial of PAN-301-1 (SNS-301) in Cancer Patients

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