Non-Small Cell Lung CancerPhase 2NCT03228667
QUILT-3.055: A Study of Combination Immunotherapies in Patients Who Have Previously Received Treatment With Immune Checkpoint Inhibitors
A Phase 2 study testing N-803 + Pembrolizumab, N-803 + Nivolumab and N-803 + Atezolizumab in people with Non-Small Cell Lung Cancer and Small Cell Lung Cancer, run by ImmunityBio, Inc. at 35 sites in United States.
Trial summary
QUILT-3.055 is a Phase 2b, open-label, multicohort study investigating combination immunotherapies in patients with advanced solid tumors who have previously been treated with PD-1/PD-L1 checkpoint inhibitors. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Non-Small Cell Lung Cancer, Small Cell Lung Cancer, Urothelial Carcinoma
- What is being tested?
- N-803 + Pembrolizumab, N-803 + Nivolumab and N-803 + Atezolizumab
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 35 sitesUnited States
- Study dates
- 11 Dec 2018to 31 Dec 2030
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
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
- Age ≥ 18 years old.
- Able to understand and provide a signed informed consent that fulfills the relevant IRB/IEC guidelines.
- Pathologically confirmed stage IV NSCLC disease.
- Have received exactly 1 anti-PD-1 or anti-PD-L1 therapy (either pembrolizumab or nivolumab) for advanced disease (stage IV or recurrent disease, or stage I-III disease in certain circumstances) outlined below. Anti-PD-1 or anti-PD-L1 therapy may have been given alone or in combination with other therapy.
- For those participants who received neoadjuvant, adjuvant, and/or consolidation anti-PD-1 or anti-PD-L1 therapy for stage
- I-III disease:
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- If they had disease progression within (≤) 365 days from initiation (cycle 1 day 1) of anti-PD-1 or anti-PD-L1 therapy, this counts as the single allowed anti-PD-1 or anti-PD-L1 therapy for advanced disease OR if they had disease progression more than (>) 365 days from initiation (cycle 1 day 1) of anti-PD-1 or anti-PD-L1 therapy, this is not considered anti-PD-1 or anti-PD-L1 therapy for advanced disease. These participants must have received anti-PD-1 or anti-PD-L1 therapy for stage IV or recurrent disease.
- Have reported disease progression (in the opinion of the treating physician) more than (>) 84 days following initiation (cycle 1 day 1) of their most recent anti-PD-1 or anti-PD-L1 therapy (either pembrolizumab or nivolumab).
- Participants who received anti-PD-1 or anti-PD-L1 therapy for stage IV or recurrent disease, must have had a best response of SD, PR or CR (in the opinion of the treating physician) on the anti- PD-1 or anti-PD-L1 therapy (either nivolumab or pembrolizumab) for stage IV or recurrent disease.
- Participants with a known sensitizing mutation for which an - approved targeted therapy for NSCLC exists (e.g., EGFR, ALK, ROS1, BRAF, RET, NTRK, KRAS, HER2 and MET sensitizing mutations), must have previously received at least 1 of the approved therapy(s). Prior targeted therapy for participants with targetable alterations is allowed if all other eligibility criteria are also met.
- ECOG performance status of 0 to 2.
- Measurable tumor lesions according to RECIST v1.1.
- Ability to attend required study visits and return for adequate follow-up, as required by this protocol.
- Agreement to practice effective contraception for female participants of child-bearing potential and non-sterile males. Female participants of child-bearing potential must agree to use effective contraception for up 7 months after completion of therapy, and non-sterile male participants must agree to use a condom for up to 7 months after treatment. Effective contraception includes surgical sterilization (eg, vasectomy, tubal ligation), orals, injectables, 2 forms of barrier methods (eg, condom, diaphragm) used with spermicide, intrauterine devices (IUDs), and hormonal therapy.
Who cannot join
- Systemic autoimmune disease currently requiring treatment (e.g., lupus erythematosus, rheumatoid arthritis, Addison's disease, or autoimmune disease associated with lymphoma). The participant must have been off treatment for 180 days.
- History of organ transplant requiring immunosuppression; or history of pneumonitis or interstitial lung disease requiring treatment with systemic steroids; or a history of receiving systemic steroid therapy or any other immunosuppressive medication ≤ 3 days prior to study initiation. Daily steroid replacement therapy (eg, prednisone or hydrocortisone) and corticosteroids used to manage AEs are permitted.
- History of known active hepatitis B or C infection.
- Active infection requiring antibiotic therapy.
- History of or active inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis).
- Had major surgery within 28 days prior to study enrollment. Participants must have fully recovered from the effects of prior surgery in the opinion of the treating Investigator.
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- Inadequate organ function, evidenced by the following laboratory results:
- Absolute lymphocyte count < institutional ULN.
- Absolute neutrophil count (ANC) < 1,500 cells/mm3.
- Platelet count < 100,000 cells/mm3.
- Total bilirubin greater than the upper limit of normal (ULN; unless the participant has documented Gilbert's syndrome).
- Aspartate aminotransferase (AST [SGOT]) or ALT (SGPT) > 1.5 × ULN.
- Alkaline phosphatase (ALP) levels > 2.5 × ULN.
- Hemoglobin < 9.0 g/dL.
- Serum creatinine > 2.0 mg/dL or 177 μmol/L or creatinine clearance < 40 mL/min (using the Cockcroft-Gault formula below): Female = [(140 - age in years) × weight in kg × 0.85] / [72 × serum creatinine in mg/dL] Male = [(140 - age in years) × weight in kg × 1.00] / [72 × serum creatinine in mg/dL]
- Have any of following:
- Cirrhosis at a level of Child-Pugh B (or worse);
- Cirrhosis (any degree) and a history of hepatic encephalopathy; or
- Clinically meaningful ascites resulting from cirrhosis. Clinically meaningful ascites is defined as ascites from cirrhosis requiring diuretics or paracentesis.
- Participation in an investigational drug study or history of receiving any investigational treatment within 30 days prior to the start of treatment on this study, except for hormone lowering therapy in participants with hormone-sensitive cancer.
- Assessed by the Investigator to be unable or unwilling to comply with the requirements of the protocol.
- Pregnant and nursing women.
Trial locations and contacts
35 sites in 1 country.
35 sites in 1 country
United States35 sites
Alaska Clinical Research Center
Anchorage, Alaska, 99530
St. Vincent Frontier Cancer Center (SCL)
Billings, Montana, 59102
Dana Farber Cancer Institute
Boston, Massachusetts, 02215
Roswell Park Cancer Institute
Buffalo, New York, 14263
Medical University of South Carolina
Charleston, South Carolina, 29425
Cleveland Clinic - Main Site
Cleveland, Ohio, 44195
Henry Ford Hospital
Detroit, Michigan, 48202
Chan Soon-Shiong Institute for Medicine
El Segundo, California, 90245
MemorialCare Health System
Fountain Valley, California, 37846
Gettysburg/Hanover Cancer Centers
Gettysburg, Pennsylvania, 17325
Glendale Adventist Medical Center
Glendale, California, 91206
St. Francis Cancer Center/Bon Secours St. Francis Health System
Greenville, South Carolina, 29607
Memorial Healthcare System
Hollywood, Florida, 33021
Genesis Cancer Center
Hot Springs, Arkansas, 71913
Oncology Consultants of Houston
Houston, Texas, 77024
University of Iowa Holden Comprehensive Cancer Center
Iowa City, Iowa, 52242
Mercy Research Joplin
Joplin, Missouri, 64804
University of Tennessee Medical Center
Knoxville, Tennessee, 37920
Horizon Oncology Associates
Lafayette, Indiana, 47905
Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756
Baptist Health - Lexington
Lexington, Kentucky, 40503
University of Southern California Norris Comprehensive Cancer Center
Los Angeles, California, 90033
Baptist Health- Louisville
Louisville, Kentucky, 40207
Miami Cancer Institute (Baptist Health South Florida)
Miami, Florida, 33176
University of Miami
Miami, Florida, 33180
University of Minnesota - Masonic Cancer Center
Minneapolis, Minnesota, 55455
Mercy Clinic Oklahoma City
Oklahoma City, Oklahoma, 73120
Providence Portland Medical Center
Portland, Oregon, 97213
Desert Hematology Oncology Medical Group, Inc.
Rancho Mirage, California, 92270
Bon Secours Richmond
Richmond, Virginia, 23114
University of Rochester
Rochester, New York, 14642
Sanford Clinical Research
Sioux Falls, South Dakota, 57104
Spartanburg Medical Center
Spartanburg, South Carolina, 29303
Mercy Clinic Cancer & Hematology - Chub O'Reilly Cancer Center
Springfield, Missouri, 65804
Washington University School of Medicine
St Louis, Missouri, 63110
About this study
Official title: QUILT-3.055: A Phase IIb, Multicohort, Open-Label Study of Combination Immunotherapies in Patients Who Have Previously Received Treatment With PD-1/PD-L1 Immune Checkpoint Inhibitors
QUILT-3.055 is a Phase 2b, open-label, multicohort study investigating combination immunotherapies in patients with advanced solid tumors who have previously been treated with PD-1/PD-L1 checkpoint inhibitors. The study aims to evaluate the safety and efficacy of NAI (nogapendekin alfa inbakicept) in combination with other agents like checkpoint inhibitors and cell therapies across various cancer types and treatment settings. The study includes multiple cohorts based on prior therapies and cancer types, with a focus on assessing overall response rate (ORR), overall survival (OS), and other measures of anti-tumor activity and immune response.
Read the detailed description
All cohorts are closed to enrollment
- Conditions
- Non-Small Cell Lung Cancer, Small Cell Lung Cancer, Urothelial Carcinoma, Head and Neck Squamous Cell Carcinoma, Merkel Cell Carcinoma, Melanoma
- Being tested
- N-803 + Pembrolizumab, N-803 + Nivolumab, N-803 + Atezolizumab, N-803 + Avelumab, N-803 + Durvalumab
- Keywords
- Pembrolizumab, Nivolumab, Non-Small Cell Lung Cancer (NSCLC), Immunotherapy, Interleukin-15, PD-1 Checkpoint Inhibitor, ALT-803, Atezolizumab, Avelumab, Small Cell Lung Cancer (SCLC), Urothelial Carcinoma, Head and Neck Squamous Cell Carcinoma (HNSCC), Merkel Cell Carcinoma (MCC), Melanoma, Renal Cell Carcinoma (RCC), Gastric Cancer, Cervical Cancer, Hepatocellular Carcinoma (HCC), Microsatellite Instability-High (MSI-H), PD-L1 Checkpoint Inhibitor
- Medical subject headings
- Carcinoma, Non-Small-Cell Lung, Small Cell Lung Carcinoma, Carcinoma, Transitional Cell, Squamous Cell Carcinoma of Head and Neck, Carcinoma, Merkel Cell, Melanoma, Carcinoma, Renal Cell, Stomach Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
N-803 + PembrolizumabDrug
Patients will receive 200 mg pembrolizumab as an intravenous infusion over 30 minutes every three weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks.
N-803 + NivolumabDrug
Patients will receive 240 mg nivolumab as an intravenous infusion over 30 minutes every two weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks.
N-803 + AtezolizumabDrug
Patients will receive 1200 mg atezolizumab as an intravenous infusion over 60 minutes every 3 weeks; if the first infusion is tolerated, subsequent infusions may be given over 30 minutes. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks.
N-803 + AvelumabDrug
Patients will receive 800 mg avelumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks.
N-803 + DurvalumabDrug
Patients will receive 10 mg/kg durvalumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks.
N-803 + Pembrolizumab + PD-L1 t-haNKDrug
Patients will receive 200 mg pembrolizumab as an intravenous infusion over 30 minutes every three weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly
N-803 + Nivolumab + PD-L1 t-haNKDrug
Patients will receive 240 mg nivolumab as an intravenous infusion over 30 minutes every two weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly
N-803 + Atezolizumab + PD-L1 t-haNKDrug
Patients will receive 1200 mg atezolizumab as an intravenous infusion over 60 minutes every 3 weeks; if the first infusion is tolerated, subsequent infusions may be given over 30 minutes. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly
N-803 + Avelumab + PD-L1 t-haNKDrug
Patients will receive 800 mg avelumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly
N-803 + Durvalumab + PD-L1 t-haNKDrug
Patients will receive 10 mg/kg durvalumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly
N-803 + Docetaxel + PembrolizumabDrug
The study employs a 6-week cycle combination of: N-803 (1.2 mg flat dose SC), docetaxel (75 mg/m² IV - first 2 cycles only), and pembrolizumab (200 mg IV).
N-803 + Docetaxel + NivolumabDrug
The study employs a 6-week cycle combination of:N-803 (1.2 mg flat dose SC), docetaxel (75 mg/m² IV - first 2 cycles only), and nivolumab (240 mg IV). Nivolumab dosing may be increased to 480mg every four weeks as per the investigator's discretion.
| Study group | Role | What they receive |
|---|---|---|
| Cohort 1 | Other | Patients with any of the cancers listed below who have progressed on or after single-agent checkpoint inhibitor therapy after experiencing an initial complete response (CR) or partial response (PR) while taking a checkpoint inhibitor.
1a - Non-small cell lung cancer
1b - Small cell lung cancer
1c - Urothelial carcinoma
1d - Head and neck squamous cell carcinoma
1e - Merkel cell carcinoma
1f - Melanoma
1g - Renal cell carcinoma
1h - Gastric cancer
1i - Cervical cancer
1j - Hepatocellular carcinoma
1k - Microsatellite instability-high or mismatch repair deficient solid tumor cancer or colorectal cancer Receives: Drug: N-803 + Pembrolizumab; Drug: N-803 + Nivolumab; Drug: N-803 + Atezolizumab; Drug: N-803 + Avelumab; Drug: N-803 + Durvalumab |
| Cohort 2 | Other | Patients with NSCLC whose tumors have high PD-L1 expression (TPS ≥ 50%) and who relapsed on a PD-1 checkpoint inhibitor after experiencing an initial CR or PR when they received checkpoint inhibitor as a single-agent for first-line treatment. Receives: Drug: N-803 + Pembrolizumab; Drug: N-803 + Nivolumab |
| Cohort 3 | Other | Patients with NSCLC who had an initial CR or PR but subsequently relapsed on maintenance PD-1 checkpoint inhibitor therapy when they initially received checkpoint inhibitor therapy in combination with chemotherapy as first-line treatment. Receives: Drug: N-803 + Pembrolizumab; Drug: N-803 + Nivolumab |
| Cohort 4 | Experimental | Patients who are currently receiving PD-1/PD-L1 checkpoint inhibitor therapy and have disease progression after experiencing stable disease (SD) for at least 6 months during their previous treatment with PD-1/PD-L1 checkpoint inhibitor therapy. Receives: Drug: N-803 + Pembrolizumab; Drug: N-803 + Nivolumab; Drug: N-803 + Atezolizumab; Drug: N-803 + Avelumab; Drug: N-803 + Durvalumab |
| Cohort 5 | Experimental | Patients that have experienced disease progression by Investigator-assessment per irRECIST while receiving treatment in Cohorts 1-4. Receives: Drug: N-803 + Pembrolizumab + PD-L1 t-haNK; Drug: N-803 + Nivolumab + PD-L1 t-haNK; Drug: N-803 + Atezolizumab + PD-L1 t-haNK; Drug: N-803 + Avelumab + PD-L1 t-haNK; Drug: N-803 + Durvalumab + PD-L1 t-haNK |
| Cohort 6 | Experimental | Patients who have progressed after an initial response (CR or PR) to a PD-1/PD-L1 checkpoint inhibitor but now exhibit acquired resistance. They have received exactly one line of anti-PD-1 or anti-PD-L1 therapy (either pembrolizumab or nivolumab) for advanced NSCLC (Stage IV or recurrent). Receives: Drug: N-803 + Docetaxel + Pembrolizumab; Drug: N-803 + Docetaxel + Nivolumab |
What is being measured
The primary outcome is the main question the study is designed to answer.
ORR, defined as Investigator-assessed CR + PR per RECIST v1.1.
ORR reflects tumor shrinkage and is the key measure of antitumor activity.
Measured: Evaluated from the first dose of study drug and repeated at each scheduled disease-assessment visit for up to 24 months (or until progression/death), with the time-to-response summarized using Kaplan-Meier methods
Prolongation of OS with NAI therapy by ALC response, where: - OS is defined as the time from first study drug administration to death resulting from any cause. - ALC response is defined as achievement or maintenance of an on-treatment ALC ≥ 1,000 cells/μ
OS is the gold-standard efficacy endpoint; the protocol explores whether an ALC rise predicts a survival benefit.
Measured: Measured from the date of the first study-drug administration to the date of death (any cause) and followed for up to 24 months after the last dose (or until death), allowing the correlation with on-treatment ALC changes
Secondary outcomes (10)
ALC response to NAI therapy
Defined as achieving a mean on-treatment absolute lymphocyte count (ALC) ≥ 1,000 cells/µL.
Measured: From the date of first study-drug administration until the earlier of death or the planned end of follow-up, assessed up to 24 months.
Prolongation of therapy
Measured as the time on NAI treatment, analyzed according to whether the participant attained the ALC response described above.
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Overall survival (OS) for all patients and subgroups
Defined as the time from the first study-drug administration to death from any cause.
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Disease-specific survival (DSS)
Time from first study drug administration to death resulting from cancer.
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Progression-free survival (PFS)
Time from the first study-drug administration to either documented disease progression or death from any cause, whichever occurs first
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Time to response
The interval from the first dose of study drug to the first documented objective tumor response (CR or PR)
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Duration of response (DoR)
Time from the date of documented response (CR or PR) until disease progression or death.
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Disease Control Rate (DCR):
measures the percentage of patients with stable disease (SD), partial response (PR), or complete response (CR). It indicates the proportion of patients who experience benefit from the treatment in terms of disease stabilization or tumor shrinkage.
Measured: Assessed at the end of each 6-week cycle (each cycle = 42 days) through 2 years (up to Cycle 17)
Quality of life (QoL) - Assessed in cohorts 1-5 only.
Assesses patient well-being using standardized questionnaires like EORTC QLQ-C30/LC13 or FACT PRO (module-specific), each with varying scales where higher scores generally indicate better functioning (but may also mean more symptoms).
Measured: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Physical examinations
A full physical exam is conducted to assess any new or worsening clinical findings.
Measured: Baseline (screening), Day 1 (first dose), and prior to every subsequent NAI dose (e.g., every 2 weeks), then at each post-treatment safety visit (Week 12, Week 24, Week 36, Week 48, and at end-of-study visit)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Jul 2017
- Study start11 Dec 2018
- Primary completion31 Aug 2029 (estimated)
- Study completion31 Dec 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Non-Small Cell Lung CancerStudies of the same condition, open and under way.
- More trials run by ImmunityBio, Inc.The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 2
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 40 participants (estimated)
Sponsor and investigators
- Lead sponsor
- ImmunityBio, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03228667
- Sponsor's protocol ID
- CA-ALT-803-02-17
- Status last verified
- Jan 2026
- First submitted
- 21 Jul 2017
- Last updated
- 14 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- QUILT-3.055: A Phase IIb, Multicohort, Open-Label Study of Combination Immunotherapies in Patients Who Have Previously Received Treatment With PD-1/PD-L1 Immune Checkpoint Inhibitors
- ClinicalTrials.gov ID
- NCT03228667
- Acronym / sponsor ID
- CA-ALT-803-02-17
- Conditions
- Non-Small Cell Lung Cancer, Small Cell Lung Cancer, Urothelial Carcinoma, Head and Neck Squamous Cell Carcinoma, Merkel Cell Carcinoma, Melanoma
- Keywords
- Pembrolizumab, Nivolumab, Non-Small Cell Lung Cancer (NSCLC), Immunotherapy, Interleukin-15, PD-1 Checkpoint Inhibitor, ALT-803, Atezolizumab
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- ImmunityBio, Inc.Industry (pharma, biotech, devices)
- Study start
- 11 Dec 2018 (actual)
- Primary completion
- 31 Aug 2029 (estimated)
- Study completion
- 31 Dec 2030 (estimated)
- First posted
- 25 Jul 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
QUILT-3.055 is a Phase 2b, open-label, multicohort study investigating combination immunotherapies in patients with advanced solid tumors who have previously been treated with PD-1/PD-L1 checkpoint inhibitors. The study aims to evaluate the safety and efficacy of NAI (nogapendekin alfa inbakicept) in combination with other agents like checkpoint inhibitors and cell therapies across various cancer types and treatment settings. The study includes multiple cohorts based on prior therapies and cancer types, with a focus on assessing overall response rate (ORR), overall survival (OS), and other measures of anti-tumor activity and immune response.
Detailed description
All cohorts are closed to enrollment
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| Cohort 1 | Other | Drug: N-803 + Pembrolizumab, Drug: N-803 + Nivolumab, Drug: N-803 + Atezolizumab, Drug: N-803 + Avelumab, Drug: N-803 + DurvalumabPatients with any of the cancers listed below who have progressed on or after single-agent checkpoint inhibitor therapy after experiencing an initial complete response (CR) or partial response (PR) while taking a checkpoint inhibitor. 1a - Non-small cell lung cancer 1b - Small cell lung cancer 1c - Urothelial carcinoma 1d - Head and neck squamous cell carcinoma 1e - Merkel cell carcinoma 1f - Melanoma 1g - Renal cell carcinoma 1h - Gastric cancer 1i - Cervical cancer 1j - Hepatocellular carcinoma 1k - Microsatellite instability-high or mismatch repair deficient solid tumor cancer or colorectal cancer |
| Cohort 2 | Other | Drug: N-803 + Pembrolizumab, Drug: N-803 + NivolumabPatients with NSCLC whose tumors have high PD-L1 expression (TPS ≥ 50%) and who relapsed on a PD-1 checkpoint inhibitor after experiencing an initial CR or PR when they received checkpoint inhibitor as a single-agent for first-line treatment. |
| Cohort 3 | Other | Drug: N-803 + Pembrolizumab, Drug: N-803 + NivolumabPatients with NSCLC who had an initial CR or PR but subsequently relapsed on maintenance PD-1 checkpoint inhibitor therapy when they initially received checkpoint inhibitor therapy in combination with chemotherapy as first-line treatment. |
| Cohort 4 | Experimental | Drug: N-803 + Pembrolizumab, Drug: N-803 + Nivolumab, Drug: N-803 + Atezolizumab, Drug: N-803 + Avelumab, Drug: N-803 + DurvalumabPatients who are currently receiving PD-1/PD-L1 checkpoint inhibitor therapy and have disease progression after experiencing stable disease (SD) for at least 6 months during their previous treatment with PD-1/PD-L1 checkpoint inhibitor therapy. |
| Cohort 5 | Experimental | Drug: N-803 + Pembrolizumab + PD-L1 t-haNK, Drug: N-803 + Nivolumab + PD-L1 t-haNK, Drug: N-803 + Atezolizumab + PD-L1 t-haNK, Drug: N-803 + Avelumab + PD-L1 t-haNK, Drug: N-803 + Durvalumab + PD-L1 t-haNKPatients that have experienced disease progression by Investigator-assessment per irRECIST while receiving treatment in Cohorts 1-4. |
| Cohort 6 | Experimental | Drug: N-803 + Docetaxel + Pembrolizumab, Drug: N-803 + Docetaxel + NivolumabPatients who have progressed after an initial response (CR or PR) to a PD-1/PD-L1 checkpoint inhibitor but now exhibit acquired resistance. They have received exactly one line of anti-PD-1 or anti-PD-L1 therapy (either pembrolizumab or nivolumab) for advanced NSCLC (Stage IV or recurrent). |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (14 listed)
- Age ≥ 18 years old.
- Able to understand and provide a signed informed consent that fulfills the relevant IRB/IEC guidelines.
- Pathologically confirmed stage IV NSCLC disease.
- Have received exactly 1 anti-PD-1 or anti-PD-L1 therapy (either pembrolizumab or nivolumab) for advanced disease (stage IV or recurrent disease, or stage I-III disease in certain circumstances) outlined below. Anti-PD-1 or anti-PD-L1 therapy may have been given alone or in combination with other therapy.
- If they had disease progression within (≤) 365 days from initiation (cycle 1 day 1) of anti-PD-1 or anti-PD-L1 therapy, this counts as the single allowed anti-PD-1 or anti-PD-L1 therapy for advanced disease OR if they had disease progression more than (>) 365 days from initiation (cycle 1 day 1) of anti-PD-1 or anti-PD-L1 therapy, this is not considered anti-PD-1 or anti-PD-L1 therapy for advanced disease. These participants must have received anti-PD-1 or anti-PD-L1 therapy for stage IV or recurrent disease.
Key exclusion criteria (22 listed)
- Systemic autoimmune disease currently requiring treatment (e.g., lupus erythematosus, rheumatoid arthritis, Addison's disease, or autoimmune disease associated with lymphoma). The participant must have been off treatment for 180 days.
- History of organ transplant requiring immunosuppression; or history of pneumonitis or interstitial lung disease requiring treatment with systemic steroids; or a history of receiving systemic steroid therapy or any other immunosuppressive medication ≤ 3 days prior to study initiation. Daily steroid replacement therapy (eg, prednisone or hydrocortisone) and corticosteroids used to manage AEs are permitted.
- History of known active hepatitis B or C infection.
- Active infection requiring antibiotic therapy.
- History of or active inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| N-803 + PembrolizumabPatients will receive 200 mg pembrolizumab as an intravenous infusion over 30 minutes every three weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. | Drug | Cohort 1, Cohort 2, Cohort 3, Cohort 4 |
| N-803 + NivolumabPatients will receive 240 mg nivolumab as an intravenous infusion over 30 minutes every two weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. | Drug | Cohort 1, Cohort 2, Cohort 3, Cohort 4 |
| N-803 + AtezolizumabPatients will receive 1200 mg atezolizumab as an intravenous infusion over 60 minutes every 3 weeks; if the first infusion is tolerated, subsequent infusions may be given over 30 minutes. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. | Drug | Cohort 1, Cohort 4 |
| N-803 + AvelumabPatients will receive 800 mg avelumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. | Drug | Cohort 1, Cohort 4 |
| N-803 + DurvalumabPatients will receive 10 mg/kg durvalumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. | Drug | Cohort 1, Cohort 4 |
| N-803 + Pembrolizumab + PD-L1 t-haNKPatients will receive 200 mg pembrolizumab as an intravenous infusion over 30 minutes every three weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly | Drug | Cohort 5 |
| N-803 + Nivolumab + PD-L1 t-haNKPatients will receive 240 mg nivolumab as an intravenous infusion over 30 minutes every two weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly | Drug | Cohort 5 |
| N-803 + Atezolizumab + PD-L1 t-haNKPatients will receive 1200 mg atezolizumab as an intravenous infusion over 60 minutes every 3 weeks; if the first infusion is tolerated, subsequent infusions may be given over 30 minutes. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly | Drug | Cohort 5 |
| N-803 + Avelumab + PD-L1 t-haNKPatients will receive 800 mg avelumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly | Drug | Cohort 5 |
| N-803 + Durvalumab + PD-L1 t-haNKPatients will receive 10 mg/kg durvalumab as an intravenous infusion over 60 minutes every 2 weeks. Patients will receive 15 µg/kg N-803 administered by subcutaneous injection every three weeks. Patients will receive PD-L1 t-haNK administered IV over 30 minutes at ~2 x 10^9 cells/dose weekly | Drug | Cohort 5 |
| N-803 + Docetaxel + PembrolizumabThe study employs a 6-week cycle combination of: N-803 (1.2 mg flat dose SC), docetaxel (75 mg/m² IV - first 2 cycles only), and pembrolizumab (200 mg IV). | Drug | Cohort 6 |
| N-803 + Docetaxel + NivolumabThe study employs a 6-week cycle combination of:N-803 (1.2 mg flat dose SC), docetaxel (75 mg/m² IV - first 2 cycles only), and nivolumab (240 mg IV). Nivolumab dosing may be increased to 480mg every four weeks as per the investigator's discretion. | Drug | Cohort 6 |
Primary outcome
ORR, defined as Investigator-assessed CR + PR per RECIST v1.1.
Time frame: Evaluated from the first dose of study drug and repeated at each scheduled disease-assessment visit for up to 24 months (or until progression/death), with the time-to-response summarized using Kaplan-Meier methods
ORR reflects tumor shrinkage and is the key measure of antitumor activity.
Prolongation of OS with NAI therapy by ALC response, where: - OS is defined as the time from first study drug administration to death resulting from any cause. - ALC response is defined as achievement or maintenance of an on-treatment ALC ≥ 1,000 cells/μ
Time frame: Measured from the date of the first study-drug administration to the date of death (any cause) and followed for up to 24 months after the last dose (or until death), allowing the correlation with on-treatment ALC changes
OS is the gold-standard efficacy endpoint; the protocol explores whether an ALC rise predicts a survival benefit.
10 secondary outcomes
ALC response to NAI therapy
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of follow-up, assessed up to 24 months.
Prolongation of therapy
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Overall survival (OS) for all patients and subgroups
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Disease-specific survival (DSS)
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Progression-free survival (PFS)
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Time to response
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Duration of response (DoR)
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Disease Control Rate (DCR):
Time frame: Assessed at the end of each 6-week cycle (each cycle = 42 days) through 2 years (up to Cycle 17)
Quality of life (QoL) - Assessed in cohorts 1-5 only.
Time frame: From the date of first study-drug administration until the earlier of death or the planned end of study follow-up, assessed up to 24 months after the last dose of study drug.
Physical examinations
Time frame: Baseline (screening), Day 1 (first dose), and prior to every subsequent NAI dose (e.g., every 2 weeks), then at each post-treatment safety visit (Week 12, Week 24, Week 36, Week 48, and at end-of-study visit)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Jan 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
35 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing N-803 + Pembrolizumab, N-803 + Nivolumab and N-803 + Atezolizumab in people with Non-Small Cell Lung Cancer and Small Cell Lung Cancer, run by ImmunityBio, Inc. at 35 sites in United States.
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 14 inclusion and 22 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: under way, not looking for participants, as of the sponsor's last update on 14 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 35 sites in United States. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
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?
ORR, defined as Investigator-assessed CR + PR per RECIST v1.1. (time frame: Evaluated from the first dose of study drug and repeated at each scheduled disease-assessment visit for up to 24 months (or until progression/death), with the time-to-response summarized using Kaplan-Meier methods). The study lists 2 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 Jan 2026.