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Adult Solid TumorPhase 1NCT04084951

Study of SQZ-PBMC-HPV in Patients With HPV16+ Recurrent, Locally Advanced or Metastatic Solid Tumors

A Phase 1 study testing SQZ-PBMC-HPV, Atezolizumab and Ipilimumab in people with Adult Solid Tumor, run by SQZ Biotechnologies at 12 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a Phase 1 open-label, multicenter study of the safety and tolerability, immunogenic effects, antitumor activity, and pharmacodynamics of SQZ-PBMC-HPV as monotherapy and in combination with atezolizumab or other immune checkpoint inhibitors in HLA-A*02+ patients with recurrent, locally advanced or metastatic… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Adult Solid Tumor
What is being tested?
SQZ-PBMC-HPV, Atezolizumab and Ipilimumab
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
12 sitesin 3 countries
Study dates
28 Jan 2020to 9 Feb 2023
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female patients ≥18 years of age who are HLA-A*02+ (performed during screening locally or centrally, or based on documented historic test results)
  • Histologically confirmed incurable or metastatic solid tumors that are HPV16+ (performed during screening locally or centrally, or based on documented historic test results)
  • Cancer must have progressed after at least 1 available standard therapy for incurable disease, or the patient is intolerant to or refuses standard therapy(ies) or has a tumor for which no standard therapy(ies) exist
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 1
  • At least 1 measurable lesion according to RECIST 1.1
  • Must have a lesion that can be biopsied with acceptable clinical risk and agree to have a fresh biopsy at Baseline and on Cycle 2 Day 8 (+/- 3 days)
  • Patients must agree to venous access for the leukapheresis and be willing to have a central line inserted if venous access is an issue
  • Adequate organ function and bone marrow reserve performed within 14 days prior to the leukapheresis

Who cannot join

  • Treatment with anticancer therapy, including investigational therapy, within 2 weeks prior to leukapheresis. For prior therapies with a half-life longer than 3 days, discontinuation of the therapy must have occurred at least 28 days prior to leukapheresis
  • Systemic treatment with either corticosteroids (>10 mg of prednisone or the equivalent per day) or other immunosuppressive medications within 14 days prior to leukapheresis
  • Patients treated with non-corticosteroid based immunosuppressive agents within the last 6 months may not be eligible and should be discussed with the Sponsor
  • Patients with active, known, or suspected autoimmune disease may not be eligible and should be discussed with the Sponsor
  • Patients with >Grade 1 AEs related to previous treatment with anticancer or investigational therapy that do not resolve at least 2 weeks prior to leukapheresis, except neuropathy, ototoxicity, mucositis, fatigue, alopecia, or endocrine disorders managed with hormone replacement
  • Known active hepatitis B or hepatitis C, or active mycobacterium tuberculosis infection
Show all 10Show fewer
  • History of any Grade 3 immune-related AE (irAE) from prior immunotherapy
  • Has known active central nervous system metastases
  • History of interstitial lung disease requiring steroids
  • Major surgery within 2 weeks of leukapheresis

Trial locations and contacts

12 sites in 3 countries.

12 sites in 3 countries

United States10 sites
  • University of Colorado Anschutz Cancer Pavillion

    Aurora, Colorado, 80045

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • University of Kansas Cancer Center

    Kansas City, Kansas, 66160

  • Cedars-Sinai Medical Center

    Los Angeles, California, 90048

  • The Masonic Cancer Center University of Minnesota

    Minneapolis, Minnesota, 55455

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37212

  • OU Health Stephenson Cancer Center

    Oklahoma City, Oklahoma, 73104

  • University of Nebraska Medical Center

    Omaha, Nebraska, 68198-6840

  • Providence Cancer Institute

    Portland, Oregon, 97213

  • HonorHealth

    Scottsdale, Arizona, 85258

Other trials in United States

Canada1 site
  • Princess Margaret Cancer Centre

    Toronto, Ontario, M5G 2C1

Other trials in Canada

Germany1 site
  • University Hospital Cologne, Clinic I for Internal Medicine

    Cologne, 50937

Other trials in Germany

About this study

Official title: A Phase 1, Multicenter, Open-Label, Dose Escalation and Dose Expansion Study of SQZ-PBMC-HPV as Monotherapy and in Combination With Atezolizumab or Other Immune Checkpoint Inhibitors in HLA-A*02+ Patients With HPV16+ Recurrent, Locally Advanced or Metastatic Solid Tumors

This is a Phase 1 open-label, multicenter study of the safety and tolerability, immunogenic effects, antitumor activity, and pharmacodynamics of SQZ-PBMC-HPV as monotherapy and in combination with atezolizumab or other immune checkpoint inhibitors in HLA-A*02+ patients with recurrent, locally advanced or metastatic human papillomavirus strain 16 positive (HPV16+) solid tumors. The study includes patients with anal, rectal, cervical, head and neck, penile, vulvar, or vaginal cancer.

Being tested
SQZ-PBMC-HPV, Atezolizumab, Ipilimumab, Nivolumab
Keywords
recurrent cancer, metastatic, locally advanced, cancer, cervical, head and neck, anal, penile, SQZ-PBMC-HPV, atezolizumab, HPV16, APC, cell therapy, ipilimumab, nivolumab, checkpoint inhibitors, immunotherapy, solid tumor, HLA-A*02, therapeutic vaccine
Medical subject headings
Recurrence, Neoplasm Metastasis, Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SQZ-PBMC-HPVBiological

    antigen presenting cell therapy; therapeutic vaccine consisting of peripheral blood mononuclear cells (PBMCs) manufactured with immunogenic epitopes of HPV16

  • AtezolizumabDrug

    programmed cell death ligand 1 (PD-L1) blocking antibody

  • IpilimumabDrug

    cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) blocking antibody

  • NivolumabDrug

    programmed cell death 1 (PD-1) blocking antibody

Study groups in NCT04084951
Study groupRoleWhat they receive
Part 1 Monotherapy Dose Escalation PhaseExperimentalIn Part 1, SQZ-PBMC-HPV as a monotherapy is administered on Day 1 of every 3 week cycles for up to a year. In Cohort 3 (double-priming), SQZ-PBMC-HPV is also administered on Day 2 of Cycle 1. There are at least 3 groups ("Cohorts") in this Phase as follows: * Cohort 1: specified dose SQZ-PBMC-HPV * Cohort 2: specified dose SQZ-PBMC-HPV * Cohort 3: specified dose SQZ-PBMC-HPV double-priming
Receives: Biological: SQZ-PBMC-HPV
Part 2 Combination Safety PhaseExperimentalIn Part 2, SQZ-PBMC-HPV in combination with immune checkpoint inhibitors (1) atezolizumab, (2) ipilimumab, (3) nivolumab, or (4) nivolumab and ipilimumab, is administered every 3 weeks for up to a year except atezolizumab may be given up to 2 years; and ipilimumab will be administered four times (in a timeframe less than a year) if safety allows. There are 4 groups ("Cohorts") in this Phase as follows: * Cohort 4: SQZ-PBMC-HPV RP2D (Recommended Phase 2 Dose) plus atezolizumab * Cohort 5: SQZ-PBMC-HPV RP2D plus ipilimumab * Cohort 6: SQZ-PBMC-HPV RP2D plus nivolumab * Cohort 7: SQZ-PBMC-HPV RP2D plus nivolumab and ipilimumab
Receives: Biological: SQZ-PBMC-HPV; Drug: Atezolizumab; Drug: Ipilimumab; Drug: Nivolumab
Part 3 Monotherapy Dose Expansion PhaseExperimentalIn Part 3, SQZ-PBMC-HPV is administered at the RP2D to patients enrolled in HPV16+ cancer-type specific cohorts. There are 4 groups ("Cohorts") in this Phase as follows: * Cohort 8: SQZ-PBMC-HPV RP2D in HPV16+ head and neck cancer patients * Cohort 9: SQZ-PBMC-HPV RP2D in HPV16+ cervical cancer patients * Cohort 10: SQZ-PBMC-HPV RP2D in HPV16+ anal cancer patients * Cohort 11: SQZ-PBMC-HPV RP2D in other HPV16+ cancer patients
Receives: Biological: SQZ-PBMC-HPV

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of participants with treatment-related adverse events (TEAEs; all, related, serious, and of special interest) as assessed by CTCAE version 5.0

    For SQZ-PBMC-HPV as a single agent (Part 1 and Part 3) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through 6 weeks after the patient's last dose of investigational product

  2. Number of participants with dose-limiting toxicity (DLT)

    For SQZ-PBMC-HPV as a single agent (Part 1 and Part 3) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Up to 1 year after LPFV

  3. Objective response rate (ORR) [Part 3]

    Proportion of patients with best response of complete response [CR] and/or partial response [PR] as defined by RECIST v1.1 criteria. For SQZ-PBMC-HPV as a single agent (Part 3 only)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  4. Best overall response (BoR) [Part 3]

    Evaluation of the BoR defined as CR, PR, Stable Disease [SD], Progressive Disease [PD] or Not Evaluable [NE] as defined by RECIST v1.1 criteria. For SQZ-PBMC-HPV as a single agent (Part 3 only)

    Measured: Through start of a new anticancer therapy, up to 2 years after the first dose of investigational product]

  5. Progression-free survival (PFS) [Part 3]

    Defined as the time from first dose of study treatment to first overall response of PD by RECIST v 1.1 or to death by any cause. This will be censored at the last RECIST v1.1 assessment if PD/death is not observed. For SQZ-PBMC-HPV as a single agent (Part 3 only)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  6. Duration of Response (DoR) [Part 3]

    Defined as the time from overall response of CR or PR to first overall response of PD by RECIST v1.1 or to death by any cause. This is defined only for patients who have a CR or PR and will be censored at the last RECIST v1.1 assessment if PD/Death is not observed. For SQZ-PBMC-HPV as a single agent (Part 3 only)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  7. Disease-control rate (DCR) [Part 3]

    Proportion of patients with best response of CR or PR or SD as defined by RECIST v1.1 criteria. For SQZ-PBMC-HPV as a single agent (Part 3 only)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  8. Overall survival (OS) [Part 3]

    Defined as the time from first dose of study treatment to death by any cause. This will be censored at the last date patient is known to be alive if death is not observed. For SQZ-PBMC-HPV as a single agent (Part 3 only)

    Measured: Through study completion, up to 2 years

Secondary outcomes (7)
  1. Objective response rate (ORR) [Part 1 and 2]

    Proportion of patients with best response of complete response [CR] and/or partial response [PR] as defined by RECIST v1.1 criteria. For SQZ-PBMC-HPV as a single agent (Part 1) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  2. Best overall response (BoR) [Part 1 and 2]

    Evaluation of the BoR defined as CR, PR, Stable Disease [SD], Progressive Disease [PD] or Not Evaluable [NE] as defined by RECIST v1.1 criteria. For SQZ-PBMC-HPV as a single agent (Part 1) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through start of a new anticancer therapy, up to 2 years after the first dose of investigational product]

  3. Progression-free survival (PFS) [Part 1 and 2]

    Defined as the time from first dose of study treatment to first overall response of PD by RECIST v 1.1 or to death by any cause. This will be censored at the last RECIST v1.1 assessment if PD/death is not observed. For SQZ-PBMC-HPV as a single agent (Part 1) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  4. Duration of Response (DoR) [Part 1 and 2]

    Defined as the time from overall response of CR or PR to first overall response of PD by RECIST v1.1 or to death by any cause. This is defined only for patients who have a CR or PR and will be censored at the last RECIST v1.1 assessment if PD/Death is not observed. For SQZ-PBMC-HPV as a single agent (Part 1) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  5. Disease-control rate (DCR) [Part 1 and 2]

    Proportion of patients with best response of CR or PR or SD as defined by RECIST v1.1 criteria. For SQZ-PBMC-HPV as a single agent (Part 1) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product

  6. Overall survival (OS) [Part 1 and 2]

    For SQZ-PBMC-HPV as a single agent (Part 1) and in combination with immune checkpoint inhibitors (Part 2)

    Measured: Through study completion, up to 2 years

  7. Amount of investigational product (IP) from individual patient blood collection [Part 1]

    To determine manufacturing feasibility (Part 1 only)

    Measured: From leukapheresis through manufacture, a maximum of 28 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Sep 2019
  2. Study start28 Jan 2020
  3. Primary completion9 Feb 2023
  4. Study completion9 Feb 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04084951
Sponsor's protocol ID
SQZ-PBMC-HPV-101
Status last verified
Apr 2023
First submitted
1 Sep 2019
Last updated
14 Apr 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing SQZ-PBMC-HPV, Atezolizumab and Ipilimumab in people with Adult Solid Tumor, run by SQZ Biotechnologies at 12 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 12 sites in United States, Canada, Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of participants with treatment-related adverse events (TEAEs; all, related, serious, and of special interest) as assessed by CTCAE version 5.0 (time frame: Through 6 weeks after the patient's last dose of investigational product). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Apr 2023.

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