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
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 发起方
- 入组人数
- 30
- 试验地点
- 12
- 主要终点
- Overall survival (OS) [Part 3]
研究概览
简要总结
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Sequential
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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
排除标准
- •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
- •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
研究组 & 干预措施
Part 1 Monotherapy Dose Escalation Phase
In 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
干预措施: SQZ-PBMC-HPV (Biological)
Part 2 Combination Safety Phase
In 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
干预措施: SQZ-PBMC-HPV (Biological)
Part 2 Combination Safety Phase
In 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
干预措施: Atezolizumab (Drug)
Part 2 Combination Safety Phase
In 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
干预措施: Ipilimumab (Drug)
Part 2 Combination Safety Phase
In 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
干预措施: Nivolumab (Drug)
Part 3 Monotherapy Dose Expansion Phase
In 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
干预措施: SQZ-PBMC-HPV (Biological)
结局指标
主要结局
Overall survival (OS) [Part 3]
时间窗: Through study completion, up to 2 years
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)
Number of participants with treatment-related adverse events (TEAEs; all, related, serious, and of special interest) as assessed by CTCAE version 5.0
时间窗: Through 6 weeks after the patient's last dose of investigational product
For SQZ-PBMC-HPV as a single agent (Part 1 and Part 3) and in combination with immune checkpoint inhibitors (Part 2)
Number of participants with dose-limiting toxicity (DLT)
时间窗: Up to 1 year after LPFV
For SQZ-PBMC-HPV as a single agent (Part 1 and Part 3) and in combination with immune checkpoint inhibitors (Part 2)
Objective response rate (ORR) [Part 3]
时间窗: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product
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)
Best overall response (BoR) [Part 3]
时间窗: Through start of a new anticancer therapy, up to 2 years after the first dose of investigational product]
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)
Progression-free survival (PFS) [Part 3]
时间窗: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product
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)
Duration of Response (DoR) [Part 3]
时间窗: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product
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)
Disease-control rate (DCR) [Part 3]
时间窗: Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product
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)
次要结局
- Objective response rate (ORR) [Part 1 and 2](Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product)
- Best overall response (BoR) [Part 1 and 2](Through start of a new anticancer therapy, up to 2 years after the first dose of investigational product])
- Progression-free survival (PFS) [Part 1 and 2](Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product)
- Duration of Response (DoR) [Part 1 and 2](Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product)
- Disease-control rate (DCR) [Part 1 and 2](Through progression per RECIST v1.1 or start of new anticancer therapy, up to 2 years after first dose of investigational product)
- Overall survival (OS) [Part 1 and 2](Through study completion, up to 2 years)
- Amount of investigational product (IP) from individual patient blood collection [Part 1](From leukapheresis through manufacture, a maximum of 28 days)