A Safety, Tolerability and Efficacy Study of NC410 Plus Pembrolizumab in Participants With Advanced Unresectable or Metastatic Solid Tumors

Sponsor

NextCure, Inc. (Industry)

Overall Status

Recruiting

CT.gov ID

NCT05572684

Collaborator

Merck Sharp & Dohme LLC (Industry)

131

Enrollment

Locations

Arm

36.9

Anticipated Duration (Months)

10.9

Patients Per Site

0.3

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

This is an open-label, non-randomized, Phase 1b/2 study to determine the safety and tolerability of NC410 when combined with a standard dose of Pembrolizumab. This study will also assess the clinical benefit of combination therapy in participants with advanced unresectable and/or metastatic ICI refractory solid tumors OR ICI naïve MSS/MSI-low solid tumors

Condition or Disease	Intervention/Treatment	Phase
Advanced or Metastatic Solid Tumors Microsatellite Instability Low Microsatellite Instability High Microsatellite Stable Ovarian Cancer Gastric Cancer Colo-rectal Cancer Esophageal Cancer Endometrial Cancer Head Neck Cancer Cervical Cancer Lung Cancer	Drug: NC410 Drug: Pembrolizumab	Phase 1/Phase 2

Study Design

Study Type:

Interventional

Anticipated Enrollment :

131 participants

Allocation:

N/A

Intervention Model:

Single Group Assignment

Masking:

None (Open Label)

Primary Purpose:

Treatment

Official Title:

A Phase 1b/2, Open-Label, Safety, Tolerability and Efficacy Study of NC410 Plus Pembrolizumab for Participants With Advanced Unresectable and/or Metastatic Immune Checkpoint Inhibitor (ICI) Refractory Solid Tumors or ICI Naïve MSS/MSI-Low Solid Tumors

Actual Study Start Date :

Oct 6, 2022

Anticipated Primary Completion Date :

Jul 1, 2025

Anticipated Study Completion Date :

Nov 1, 2025

Arms and Interventions

Arm	Intervention/Treatment
Experimental: NC410 and Pembrolizumab All participants will receive NC410 (IV) and Pembrolizumab (IV) according to the treatment schedule until a reason for treatment discontinuation is reached.	Drug: NC410 NC410 will be given intravenously (IV) every 2 weeks Drug: Pembrolizumab Pembrolizumab 400mg will be given IV every 6 weeks.

Arm

Intervention/Treatment

Experimental: NC410 and Pembrolizumab

All participants will receive NC410 (IV) and Pembrolizumab (IV) according to the treatment schedule until a reason for treatment discontinuation is reached.

Drug: NC410

NC410 will be given intravenously (IV) every 2 weeks

Drug: Pembrolizumab

Pembrolizumab 400mg will be given IV every 6 weeks.

Outcome Measures

Primary Outcome Measures

Number of participants with treatment-emergent adverse events as assessed by CTCAE v5.0 [24 Months]
Frequency, duration, and severity of treatment-emergent adverse events (AEs)
Define a recommended Phase 2 dose (RP2D) of NC410 when combined with standard dose Pembrolizumab [42 days]
A mTPI design will be utilized to determine the RP2D of NC410

Secondary Outcome Measures

Objective Response Rate per RECIST [until disease progression, up to 24 months]
Objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
Duration of Response per RECIST [until disease progression, up to 24 months]
Duration of Response (DoR) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
Disease Control Rate per RECIST [until disease progression, up to 24 months]
Disease Control Rate (DCR) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
Progression-free Survival (PFS) per RECIST [until disease progression, up to 24 months]
Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years and Older

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Inclusion Criteria:

Be 18 years of age on day of signing informed consent.
Participant with histologically or cytologically confirmed diagnosis of the following advanced unresectable and/or metastatic solid tumors:
Phase 1b: Participants with solid tumors that are known to be associated as MSS/MSI-low in the majority including: CRC, Gastric including GE junction, Esophageal, Ovarian, and H&N cancer (regardless of prior treatment with ICIs). Note: Participants must have had disease progression after at least one line of systemic standard of care therapy prior to enrollment. Participants who discontinue standard treatment due to intolerance or refuse standard treatment will also be eligible to enroll.
Phase 2 ICI Refractory Solid Tumors (Cohort 1): Participants with solid tumors including CRC, Gastric including GE junction, Esophageal, Endometrial, H&N, Lung, Cervical and Ovarian cancer.Participants must have progressed on treatment with an anti-PD1/L1 monoclonal antibody (mAb) administered either as monotherapy, or in combination with other checkpoint inhibitors or other therapies. PD-1 treatment progression is defined by meeting all of the following criteria:
Has received at least 2 doses of an approved anti-PD-1/L1 mAb.
Has demonstrated disease progression after PD-1/L1 as defined by RECIST v1.1.
Phase 2 ICI naïve Solid Tumors (Cohorts 2a-2c):Tumors known to be associated with MSS/MSI-low status such as CRC, Gastric including GE junction, and Ovarian cancer where participants have not been previously treated with ICIs. Note: Participants must have had disease progression after at least one line of systemic standard of care therapy prior to enrollment. Participants who discontinue standard treatment due to intolerance or refuse standard treatment will also be eligible to enroll. Note: Confirmation of MSS/MSI status should be assessed prior to study entry (either by historical result or during screening).
A male participant must agree to use contraception and refrain from sperm donation or expecting to father a child, from Screening through the treatment period and for at least 120 days after the last dose of study treatment.
A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies:
Not a woman of childbearing potential (WOCBP)
A WOCBP who agrees to follow contraceptive guidance outlined in the protocol from Screening through the treatment period and for at least 120 days after the last dose of study treatment.
Have measurable disease per RECIST 1.1 as assessed by the local site investigator/radiology. Lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions.
Able to provide tumor tissue sample at Screening, archival (≤ 5 years old) or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated. Formalin-fixed, paraffin embedded (FFPE) tissue blocks are preferred to slides. Newly obtained biopsies are preferred to archived tissue.
Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.
Life expectancy greater than or equal to 12 weeks as judged by the Investigator.
Have adequate organ function as defined in the protocol.
Participants who are HBsAg positive are eligible if they have received HBV antiviral therapy for at least 4 weeks and have undetectable HBV viral load prior to screening. Participants should remain on anti-viral therapy throughout study intervention and follow local guidelines for HBV anti-viral therapy post completion of study intervention.
Hepatitis B screening tests are not required unless:

Known history of HBV infection
As mandated by local health authority

Participants with history of HCV infection are eligible if HCV viral load is undetectable at screening. Participants must have completed curative anti-viral therapy at least 4 weeks prior to screening.
Hepatitis C screening tests are not required unless:

Known history of HCV infection
As mandated by local health authority

Exclusion Criteria:

A WOCBP who has a positive urine pregnancy test (within 72 hours) prior to treatment. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
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, OX40, CD137), and was discontinued from that treatment due to a Grade 3 or higher irAE.
Has received prior systemic anti-cancer therapy including investigational agents within 4 weeks (could consider shorter interval for kinase inhibitors or other short half-life drugs) prior to treatment. Note: Participants must have recovered from all AEs due to previous therapies to ≤ Grade 1 or baseline. Participants with ≤ Grade 2 neuropathy may be eligible. Participants with endocrine-related AEs Grade ≤ 2 requiring treatment or hormone replacement may be eligible. If the participant had major surgery, the participant must have recovered adequately from the procedure and/or any complications from the surgery prior to starting study intervention.
Has received prior radiotherapy within 2 weeks of start of study treatment or has had a history of radiation pneumonitis. Note: Participants must have recovered from all radiation-related toxicities and do not require corticosteroids. A 1-week washout is permitted for palliative radiation (≤ 2 weeks of radiotherapy) to non-CNS disease.
Has received G-CSF or GM-CSF within 7 days prior to start of study treatment.
Has received a live or live-attenuated vaccine within 30 days prior to the first dose of study intervention. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, chicken pox/zoster, yellow fever, rabies, Bacillus Calmette Guérin, and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., FluMist®) are live attenuated vaccines and are not allowed.
Receipt of COVID-19 vaccine within ≤ 14 days prior to first administration of study treatments. For 2-dose COVID-19 vaccines or COVID-19 booster, participants must wait at least 14-days after administration prior to beginning study treatment.
Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study treatment. Participants who have entered the follow-up phase of an investigational study may participate as long as it has been 4 weeks after the last dose of the previous investigational agent.
Has had an allogeneic tissue/stem cell/solid organ transplant.
Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug.
Has a known additional malignancy that is progressing or has required active treatment within the past 3 years. Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ, excluding carcinoma in situ of bladder, that have undergone potentially curative therapy are not excluded.
Has known active CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, i.e., without evidence of progression for at least 4 weeks by repeat imaging (note that the repeat imaging should be performed during study screening), clinically stable and without requirement of steroid treatment for at least 14 days prior to first dose of study treatment.
Has severe hypersensitivity (≥ Grade 3), known allergy or reaction to Pembrolizumab, NC410, and/or any of their excipients.
Has an active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment and is allowed.
Has a history of (non-infectious) pneumonitis / interstitial lung disease that required steroids or has current pneumonitis / interstitial lung disease.
Has an active infection requiring systemic therapy.
Has a known history of HIV infection. No HIV testing is required unless mandated by local health authority.
Has a history or current evidence of any condition, therapy, or laboratory abnormality, or other circumstance that might confound the results of the study or interfere with the participant's participation for the full duration of the study, such that it is not in the best interest of the participant to participate, in the opinion of the treating investigator.
Has a known psychiatric or substance abuse disorder that would interfere with the participant's ability to cooperate with the requirements of the study.

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Arizona Oncology Associates	Tucson	Arizona	United States	85711
2	Rocky Mountain Cancer Centers	Aurora	Colorado	United States	80012
3	St. Elizabeth Edgewood Hospital	Edgewood	Kentucky	United States	41017
4	Johns Hopkins Sidney Kimmel Comprehensive Cancer Center	Baltimore	Maryland	United States	21231
5	Hackensack Meridian Health University Medical Center- John Theurer Cancer Center	Hackensack	New Jersey	United States	07601
6	University of Cincinnati Cancer Center	Cincinnati	Ohio	United States	45267
7	Texas Oncology - Baylor Charles A. Sammons Cancer Center	Dallas	Texas	United States	75246
8	MD Anderson Cancer Center	Houston	Texas	United States	77030
9	UT Health San Antonio	San Antonio	Texas	United States	78229
10	Texas Oncology - San Antonio	San Antonio	Texas	United States	78240
11	Virginia Cancer Specialist	Fairfax	Virginia	United States	22031
12	Northwest Cancer Specialist	Vancouver	Washington	United States	98684