Clinical trial NCT04332653: NT-I7 (Efineptakin Alfa) in Combination with Pembrolizumab in Participants with Advanced Solid Tumors
Official title: An Open-label Phase 1b/2a Study of NT-I7 (efineptakin Alfa) in Combination with Pembrolizumab in Subjects with Relapsed/Refractory Advanced Solid Tumors
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: PHASE1
PHASE2
Conditions: Any Advanced Solid Tumors
Triple Negative Breast Cancer
Non Small Cell Lung Cancer
Small Cell Lung Cancer
Microsatellite Stable Colorectal Cancer
Pancreatic Cancer
Ovarian Cancer
Keywords: NT-I7 (Efineptakin alfa)
Solid Tumor
Pembrolizumab
Neoplasms
Lung
Breast
Pancreas
Colorectal
Non-small Cell Lung
Small Cell Lung
Thoracic Neoplasms
Interleukin 7
Carcinoma
Cancer
Programmed cell death protein (PD-1)
Ovarian
Lead sponsor: NeoImmuneTech
Sponsor class: INDUSTRY
Collaborators: name: Merck Sharp & Dohme LLC
First posted: 2020-04-03
Enrollment: 215
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SEQUENTIAL
Primary purpose: TREATMENT

Brief summary: The main purposes of Phase 1b of this study are to determine the following in participants with advanced solid tumors:

* Safety and tolerability of NT-I7 in combination with pembrolizumab
* Maximum Tolerated Dose (MTD) and/or the Recommended Phase 2 Dose (RP2D)

The main purpose of Phase 2a of this study is to assess the preliminary anti-tumor activity of NT-I7 in combination with pembrolizumab in participants with checkpoint inhibitor (CPI) treated and naïve relapsed and refractory (R/R) tumors.

The main purpose of the Biomarker Cohort is to assess a potential correlation between tumor infiltrating lymphocytes (TILs) and clinical benefits in participants with CPI-naïve R/R ovarian cancer (OC).

Detailed description: This is a multicenter, open-label Phase 1b/2a study of NT-I7 in combination with pembrolizumab. The study consists of a dose escalation phase (Phase 1b) followed by a dose expansion phase (Phase 2a) and a Biomarker Cohort.

The Phase 1b is designed to assess the safety and tolerability, including determination of the Maximum Tolerated Dose (MTD) and/or the Recommended Phase 2 Dose (RP2D) of NT-I7.

The main purpose of Phase 2a of this study is to assess the preliminary antitumor activity of NT-I7 in combination with pembrolizumab in participants with relapsed/refractory

* checkpoint inhibitor (CPI)-treated Triple Negative Breast Cancer (TNBC), Non-small Cell Lung Cancer (NSCLC), and Small Cell Lung Cancer (SCLC)
* checkpoint inhibitor (CPI)-naïve Microsatellite Stable Colorectal Cancer (MSS-CRC), and Pancreatic Cancer (PC) The Biomarker Cohort is designed to assess the correlation between tumor infiltrating lymphocytes (TILs) and clinical benefits of NT-I7 in combination with pembrolizumab in participants with CPI naïve R/R Ovarian Cancer (OC).

Eligibility criteria: Inclusion Criteria:

(Participants must meet all the following to be eligible)

* Participants with histologically or cytologically confirmed advanced or metastatic solid tumors.
* Have measurable disease per RECIST v1.1.
* Participants enrolling in the Phase 1b, Arms I, IV, IVa, V, and Va of the Phase 2a, and the Biomarker Cohort OC must have biopsiable disease.
* Female participants who are either postmenopausal for at least 1 year, are surgically sterile for at least 6 weeks; female participants of childbearing potential must agree to remain abstinent (refrain from heterosexual intercourse) or to use dual methods of contraception for the duration of study treatment and for 120 days after the last dose of study treatment (pembrolizumab and/or NT-I7).
* Non-sterile male participants who are sexually active with female partners of childbearing potential must agree to remain abstinent (refrain from heterosexual intercourse) or to use highly effective method(s) of contraception for the duration of study treatment and for 120 days after the last dose of study treatment (pembrolizumab and/or NT-I7).
* Meet the requirements for the intended stages and arms (disease specific inclusion criteria), as follows:

Applicable to the Dose escalation phase (Phase 1b) only: (Biopsy Arm)

* Relapsed/refractory advanced solid tumors.

Applicable to the Dose expansion phase (Phase 2a) only:

Anti-PD-1/anti-PD-L1 refractory criteria for CPI-treated TNBC, NSCLC, and SCLC

* Has received at least 2 doses of an approved anti-PD-1/anti-PD-L1 monoclonal antibody (mAb).
* Has demonstrated disease progression after anti-PD-1/anti-PD-L1.

Specific to Arm I: CPI-treated R/R TNBC (Biopsy Arm)

* Histopathologic or cytologic documented TNBC.
* Received one or more prior therapies for TNBC in the advanced or metastatic setting, and prior treatment (for advanced, metastatic or (neo) adjuvant).

Specific to Arm II: CPI-treated R/R NSCLC

* Had prior treatment with CPI. Participants with estimated glomerular filtration rate (EGFR), BRAF, or c-ros oncogene 1(ROS1) mutations or anaplastic lymphoma kinase (ALK) translocations are required to have received prior therapy with the appropriate tyrosine kinase inhibitor (TKI).

Specific to Arm III: CPI-treated R/R SCLC

* Recurrent extensive-stage SCLC; Received prior CPI therapy.

Specific to Arm IV and IVa: CPI-naïve R/R MSS-CRC (Biopsy Arm)

* MSS-CRC (categorized as MSS by immunohistochemistry(IHC) or polymerase chain reaction (PCR).
* Previously treated with standard therapies, which must include fluoropyrimidine, oxaliplatin, and irinotecan; participants treated with CPI are not eligible.

Specific to Arm V and Va: CPI-naïve R/R Pancreatic Cancer (Biopsy Arm)

* Have documented radiographic progression to or documented in tolerance of first line systemic chemotherapy which included either gemcitabine or Fluorouracil (5-FU)-based regimen (including capecitabine); participants treated previously with CPI are not eligible.

Specific to Biomarker Cohort: CPI-naïve R/R Ovarian Cancer

* Up to 5 prior lines of treatment, including platinum-based treatment(s); participants treated previously with CPIs are not eligible.
* Willing to provide pre- and on-treatment tumor biopsies.

Exclusion Criteria:

* Pregnant, lactating or breastfeeding.
* Receiving chemotherapy or any anti-cancer therapy (approved or investigational) with half-life \<1 week within 30 days or 5 half-lives.
* Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate if stable.
* Participants who have received treatment with systemic immunosuppressive medications.
* Has a history of non-infectious pneumonitis that required steroids or current pneumonitis.
* Has had an allogenic tissue/solid organ transplant or bone marrow transplant.
* Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX-40, CD137) and was discontinued from that treatment due to a Grade 3 or higher Immune related adverse event (irAE).

Primary outcomes:
measure: Phase 1b: Safety and Tolerability of NT-I7 in Combination With Pembrolizumab to Determine the Maximum Tolerated Dose (MTD) and/or the Recommended Phase 2 Dose (RP2D) of NT-I7
timeFrame: Up to 2 years
measure: Phase 1b: Safety and Tolerability of NT-I7 in Combination With Pembrolizumab to Determine the Maximum Tolerated Dose (MTD) and/or the Recommended Phase 2 Dose (RP2D) of NT-I7
timeFrame: Up to 2 years
measure: Phase 2a: Preliminary Assessment of the Objective Response Rate (ORR) of NT-I7 in Combination with Pembrolizumab
timeFrame: Up to 2 years
measure: Biomarker Cohort: Number of Tumor-Infiltrating Lymphocytes (TILs)
timeFrame: Up to 2 years
measure: Biomarker Cohort: Distribution of Tumor-Infiltrating Lymphocytes (TILs)
timeFrame: Up to 2 years
measure: Biomarker Cohort: Phenotype of Tumor-Infiltrating Lymphocytes (TILs)
timeFrame: Up to 2 years
Secondary outcomes:
measure: Duration of Objective Response (DOR)
timeFrame: Up to 2 years
measure: Disease Control Rate (DCR)
timeFrame: Up to 2 years
measure: Progression Free Survival (PFS)
timeFrame: Up to 2 years
measure: Overall Survival (OS)
timeFrame: Up to 2 years
measure: Number of Participants Who Experience an Increase in Anti-Drug Antibodies (ADAs) to NT-I7
timeFrame: Up to 2 years
measure: Biomarker Cohort: Objective Response Rate (ORR)
timeFrame: Up to 2 years
measure: Incidence, Nature, and Severity of Adverse Events (AEs) graded according to National Cancer Institute Common Terminologies Criteria for Adverse Events (NCI CTCAE) v5.0
timeFrame: Up to 2 years
Other outcomes:
Locations:
city: Tampa
country: United States
facility: Moffit Cancer Center
state: Florida
city: Detroit
country: United States
facility: Barbara Ann Karmanos Cancer Institute
state: Michigan
city: Saint Louis
country: United States
facility: Washington University School of Medicine in St. Louis
state: Missouri
city: Durham
country: United States
facility: Duke University Medical Center
state: North Carolina
city: Philadelphia
country: United States
facility: Fox Chase Cancer Center
state: Pennsylvania
city: Nashville
country: United States
facility: Sarah Cannon Research Institute
state: Tennessee
city: Dallas
country: United States
facility: Mary Crowley Cancer Research
state: Texas
city: Houston
country: United States
facility: MD Anderson Cancer Center
state: Texas
Study officials:
References: