MedPath

High-Risk Skin Cancers With Atezolizumab Plus NT-I7

Phase 1
Terminated
Conditions
Melanoma
Merkel Cell Carcinoma
Cutaneous Squamous Cell Carcinoma
Interventions
Registration Number
NCT03901573
Lead Sponsor
NeoImmuneTech
Brief Summary

The purpose of this study is to test whether the addition of NT-I7 to atezolizumab provides clinically meaningful outcomes for patients with anti-PD-1/PD-L1 naive or relapsed/refractory high-risk melanoma, Merkel Cell Carcinoma (MCC) and cutaneous Squamous Cell Carcinoma (cSCC)

Detailed Description

This is a Phase 1b/2a, open-label, multicenter study to evaluate the safety, tolerability and anti-tumor effect of NT-I7 (rhIL-7-hyFc) in combination with atezolizumab (MPDL3280A, anti-PD-L1) in patients with anti-PD-1/PD-L1 naïve or relapsed/refractory high-risk skin cancers including cutaneous Squamous Cell Carcinoma (cSCC), Merkel Cell Carcinoma (MCC) and melanoma.

This study has been designed to evaluate the safety and tolerability, including the Maximum Tolerated Dose (MTD) or recommended Phase 2 dose (RP2D), of NT-I7 in combination with atezolizumab.

There are two phases to this study:

* Phase 1b, a NT-I7 dose-escalation phase to determine the MTD or RP2D

* Phase 2a, a non-randomized parallel dose expansion phase to confirm the MTD or RP2D in both arms.

Arm I: Anti-PD-1/PD-L1 (checkpoint inhibitors, CPI) naïve patients with cSCC and MCC

Arm II: Anti-PD-1/PD-L1 relapsed/refractory patients with cSCC, MCC and melanoma

Number of Patients A total of up to 84 patients will be enrolled; Up to 24 patients will be enrolled in the Phase 1b (up to 6 patients per dose level, using 3 + 3 design), and 60 patients will be enrolled in the Phase 2a (24 patients in Arm I, i.e., 12 patients for each indication, and 36 in Arm II, i.e., 12 patients for each indication).

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
31
Inclusion Criteria
  1. Patients must be ≥18 years of age on day of signing informed consent document.
  2. Eastern Cooperative Oncology Group (ECOG) performance status ≤2 (Karnofsky ≥60%).
  3. Patients must have adequate organ and marrow function.
  4. Patients positive for HIV can be considered.
  5. Arm I - cSCC: Patients must have biopsy-proven metastatic cSCC or locoregional cSCC that has recurred following standard locoregional therapy with surgery and/or radiation therapy; MCC: Patients must have biopsy-proven metastatic MCC or locoregional MCC in need of systemic therapy, including patients that have not had prior systemic therapy or have recurred following standard locoregional therapy with surgery and/or radiation therapy. Prior chemotherapy is allowed.
  6. Arm II - MCC: Patients must have biopsy-proven metastatic MCC or locoregional MCC that has recurred following anti-PD-1 or anti-PD-L1, or has SD following anti-PD-1 or anti-PD-L1, defined as 12 weeks of SD per RECIST 1.1; cSCC: Patients must have biopsy-proven metastatic cSCC or locoregional cSCC that has recurred following anti-PD-1 or anti-PD-L1, or has SD following anti-PD-1 or anti-PD-L1, defined as 12 weeks of SD per RECIST 1.1; Melanoma: Patients must have biopsy-proven metastatic melanoma or locoregional melanoma that has recurred following anti-PD-1, anti-PD-L1, or has SD following anti-PD-1 or anti-PD-L1, defined as 12 weeks of SD per RECIST 1.1.

Note: Prior therapy with ipilimumab is allowed (subject to a 6-week washout period) but not required.

Note: Progression following targeted therapies (e.g., BRAF inhibitor and/or MEK inhibitor) or other approved (e.g., talimogene laherparepvec [T-VEC]) or investigational therapies is allowed.

Key

Exclusion Criteria
  1. Pregnancy, lactation, or breastfeeding.
  2. Significant cardiovascular disease.
  3. Poorly controlled Type 2 diabetes mellitus.
  4. Major surgical procedure, other than for diagnosis, within 28 days prior to Cycle 1, Day 1, or anticipation of need for a major surgical procedure during the study.
  5. Patients who have had chemotherapy or radiotherapy within 2 weeks (4 weeks for nitrosoureas or systemic mitomycin C) prior to Cycle 1, Day 1.
  6. Patients who had prior treatment with immune CPIs, immunomodulatory monoclonal antibodies (mAbs), and/or mAb-derived therapies within 6 weeks before the initiation of study treatment, except for prior anti-PD-L1/anti-PD-1, which requires a 3-week washout period.
  7. Patients who have received treatment with any other investigational agent within 4 weeks prior to Cycle 1, Day 1.
  8. Patients who have received treatment and failed therapy with checkpoint inhibition plus a T-cell growth factor, e.g., IL-2 (NTKR-204), IL-15 (ALT-803) or IL-7 (CYT107).
  9. Patients with known primary central nervous system (CNS) malignancy, untreated CNS metastases, or active CNS metastases (progressing or requiring corticosteroids for symptomatic control) are excluded, with some exceptions.
  10. Patients who have leptomeningeal disease.
  11. Patients with autoimmune disease history.
  12. Patients who have received treatment with systemic immunosuppressive medications within 2 weeks prior to Cycle 1, Day 1.
  13. Patients who have a history of idiopathic pulmonary fibrosis, pneumonitis (including drug induced), organizing pneumonia (i.e., bronchiolitis obliterans, cryptogenic organizing pneumonia, etc.), or evidence of active pneumonitis on screening chest CT scan. History of radiation pneumonitis in the radiation field (fibrosis) is permitted.
  14. Patients with active hepatitis B (defined as having a positive hepatitis B surface antigen [HBsAg] test at screening).
  15. Patients with active tuberculosis (TB).
  16. Patients who have severe infections within 4 weeks prior to Cycle 1, Day 1.
  17. Patients who have signs or symptoms of recent infection (not meeting the above criteria for severe infections) within 2 weeks before initiation of study treatment.
  18. Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation.
  19. Patients who have received a live, attenuated vaccine within 4 weeks prior to Cycle 1, Day 1 or anticipate that such a live attenuated vaccine be required during the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Checkpoint Inhibitor-Relapsed/Refractory cSCC MCC Melanoma PtsatezolizumabAnti-PD-1/PD-L1 relapsed/refractory patients with cSCC, MCC and melanoma
Checkpoint Inhibitor-Relapsed/Refractory cSCC MCC Melanoma PtsNT-I7Anti-PD-1/PD-L1 relapsed/refractory patients with cSCC, MCC and melanoma
Checkpoint Inhibitor-Naive cSCC, MCC PtsatezolizumabAnti-PD-1/PD-L1 naïve patients with cSCC and MCC
Checkpoint Inhibitor-Naive cSCC, MCC PtsNT-I7Anti-PD-1/PD-L1 naïve patients with cSCC and MCC
Primary Outcome Measures
NameTimeMethod
Safety and Tolerability of NT-I7 in combination with atezolizumab to determine the maximum tolerated dose (MTD) and/or the recommended Phase 2 dose (RP2D) of NT-I7Up to approximately 56 months

* Incidence, nature, and severity of adverse events graded according to NCI CTCAE v5.0

* Incidence and nature of Dose-Limiting Toxicities (DLTs)

* Potential correlation with PK, pharmacodynamic, safety, and efficacy parameters

Secondary Outcome Measures
NameTimeMethod
To evaluate immunogenicity of NT-I7 and atezolizumabUp to approximately 56 months

To determine and evaluate the incidence of anti-drug antibodies (ADA) to NT-I7 and atezolizumab during the study relative to the prevalence of ADA at baseline

Preliminary assessment of the Objective Response Rate (ORR) of NT-I7 in combination with atezolizumabUp to approximately 56 months

To preliminarily assess the Objective Response Rate (ORR) defined as percentage of patients who have at least one confirmed partial response (PR) or complete response (CR) according to RECIST v1.1, as determined by the investigator.

Preliminary assessment the Disease Control Rate (DCR) of NT-I7 in combination with atezolizumabUp to approximately 56 months

To preliminarily assess the Disease Control Rate (DCR) defined as proportion of patients with a best overall response of CR, PR or stable disease (SD).

Preliminary assessment the Overall Survival (OS) of NT-I7 in combination with atezolizumabUp to approximately 56 months

To preliminarily assess the Overall Survival (OS) defined as the time from first study treatment (Cycle 1 Day 1) to death from any cause.

Preliminary assessment the Duration of Objective Response (DOR) of NT-I7 in combination with atezolizumabUp to approximately 56 months

To preliminarily assess the Duration of Objective Response (DOR), defined as the time from the first occurrence of a documented objective response to the time of the first documented disease progression or death from any cause, whichever occurs first, per RECIST v1.1 as determined by the investigator.

Preliminary assessment the Progression Free Survival (PFS) of NT-I7 in combination with atezolizumabUp to approximately 56 months

To preliminarily assess the Progression Free Survival (PFS), defined as the time from the first study treatment (Cycle 1 Day 1) to the first occurrence of progression or death from any cause, whichever occurs first, per RECIST v1.1 as determined by the investigator.

Trial Locations

Locations (8)

Northwestern University

🇺🇸

Chicago, Illinois, United States

Dana Farber

🇺🇸

Boston, Massachusetts, United States

MGH

🇺🇸

Boston, Massachusetts, United States

Cleveland Clinic

🇺🇸

Cleveland, Ohio, United States

Providence Portland Medical Center

🇺🇸

Portland, Oregon, United States

Washington University

🇺🇸

Saint Louis, Missouri, United States

City of Hope

🇺🇸

Duarte, California, United States

Mt Sinai

🇺🇸

New York, New York, United States

© Copyright 2025. All Rights Reserved by MedPath