N-803 + Pembrolizumab
DrugPatients 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.
NCT Number: NCT03228667
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.
This study is active but is not currently recruiting participants.
18 year and older
All sexes
Interventional
Phase 2
Alaska Clinical Research Center, Anchorage, Alaska, United States
All cohorts are closed to enrollment
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
(Cohort 6 only)
a. For those participants who received neoadjuvant, adjuvant, and/or consolidation anti-PD-1 or anti-PD-L1 therapy for stage
I-III disease:
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.
Exclusion criteria
(Cohort 6 only)
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 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 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 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 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 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
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
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
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
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
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).
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.
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.
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.
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.
Defined as achieving a mean on-treatment absolute lymphocyte count (ALC) ≥ 1,000 cells/µL.
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.
Measured as the time on NAI treatment, analyzed according to whether the participant attained the ALC response described above.
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.
Defined as the time from the first study-drug administration to death from any cause.
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 from first study drug administration to death resulting from cancer.
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 from the first study-drug administration to either documented disease progression or death from any cause, whichever occurs first
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.
The interval from the first dose of study drug to the first documented objective tumor response (CR or PR)
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 from the date of documented response (CR or PR) until disease progression or death.
Time frame: Assessed at the end of each 6-week cycle (each cycle = 42 days) through 2 years (up to Cycle 17)
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.
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.
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).
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)
A full physical exam is conducted to assess any new or worsening clinical findings.
Time frame: Captured continuously from the first dose of study drug and monitored at every study visit throughout the treatment period and the post-treatment follow-up phase (until study closure, typically up to ~24 months after the last dose).
All treatment-emergent adverse events and serious adverse events are recorded and graded using the NCI Common Terminology Criteria for Adverse Events version 5.0.
Time frame: Baseline, Day 1, on-treatment (prior to each dose; every 2 weeks), and at each post-treatment safety visit (Week 12, Week 24, Week 36, Week 48, and end-of-study)
Routine hematology, chemistry, and other safety-related labs are performed to detect treatment-related abnormalities.
Time frame: Baseline, Day 1, before each NAI infusion (typically every 2 weeks), and at all scheduled safety follow-up visits (Week 12, Week 24, Week 36, Week 48, and final study visit)
Blood pressure, heart rate, respiratory rate, temperature, and weight are recorded.
Time frame: Assessed from the first dose onward at scheduled tumor-assessment visits (typically every 8-12 weeks) until progression, death, or study end (≈ 24 months).
Cohorts 1-5 (irRECIST) Proportion of participants achieving a confirmed complete or partial response per immune-related RECIST.
Time frame: From Day 1 of first study-drug administration to first documented disease progression (per irRECIST/iRECIST) or death from any cause, whichever occurs first, assessed up to 24 months.
Cohorts 1-5 (irRECIST) Time from first dose to disease progression (per irRECIST) or death from any cause, whichever occurs first.
Time frame: From Day 1 of first study-drug administration to the date of first confirmed complete or partial response, assessed up to 24 months.
Cohorts 1-5 (irRECIST) Interval from first dose to the first documented objective response (CR or PR)
Time frame: Assessed at each tumor-assessment visit (baseline, Week 8 ± 1, Week 16 ± 2, Week 24 ± 2, and thereafter every 12 weeks) through 24 months.
Cohorts 1-5 (irRECIST) Proportion of participants achieving CR, PR, or stable disease per irRECIST.
Time frame: From the date of first confirmed response to subsequent disease progression or death, whichever occurs first, assessed up to 24 months.
Cohorts 1-5 (irRECIST) Time from first documented response to disease progression or death.
Time frame: Blood sampled at baseline, Day 1, Week 4, Week 12, and then every 12 weeks up to 24 months.
Cohorts 1-5 (irRECIST) Detection of anti-drug antibodies or other immune responses to the investigational agents.
Time frame: Assessed on Cycle 1 Day 1 (each cycle = 28 days) and Cycle 2 Day 1. Sampling schedule on each study day: pre-dose, end-of-infusion, 0.5 hour, 1 hour, 2 hours, 4 hours, 8 hours, and 24 hours post-dose
The highest observed plasma concentration of the study drug after a single intravenous infusion, expressed in ng · mL-¹. Concentrations are measured using a validated LC-MS/MS assay (lower limit of quantitation = 1 ng · mL-¹).
Time frame: Assessed on Cycle 1 Day 1 (each cycle = 28 days) and Cycle 2 Day 1. Sampling schedule on each study day: pre-dose, end-of-infusion, 0.5 hour, 1 hour, 2 hours, 4 hours, 8 hours, and 24 hours post-dose
Time elapsed from the start of the infusion to the occurrence of Cmax, expressed in hours. Determined from the same plasma-sampling schedule used for Cmax.
Time frame: Assessed on Cycle 1 Day 1 (each cycle = 28 days) and Cycle 2 Day 1. Sampling schedule on each study day: pre-dose, end-of-infusion, 0.5 hour, 1 hour, 2 hours, 4 hours, 8 hours, and 24 hours post-dose
Calculated using the linear-trapezoidal method applied to the concentration-time data obtained from the intensive sampling schedule (pre-dose through 24 h) on Cycle 1 Day 1. Units are ng · h · mL-¹.
Time frame: Assessed on Cycle 2 Day 1 (each cycle = 42 days). Intensive sampling: pre-dose, end-of-infusion, 0.5 hour, 1 hour, 2 hours, 4 hours, 8 hours, 24 hours post-dose. Sparse samples at weeks 12, 24, 36, 48, 60, 72, 84 (up to 24 months).
Area under the plasma-concentration-time curve over a full dosing interval (τ) at steady state, calculated by the linear-trapezoidal method using pre-dose and post-dose samples collected on Cycle 2 Day 1 (or the first cycle where steady state is confirmed). Units: ng · h · mL-¹.
Time frame: Determined from the same Cycle 1 Day 1 intensive sampling. No additional time points are required; the parameter is reported once per participant. The overall data-collection window for the participant is up to 24 months from first dose
The time required for the plasma concentration to decline by 50 % during the terminal phase, calculated by log-linear regression of the last ≥3 measurable concentrations from the intensive sampling (typically 4 h, 8 h, 24 h) on Cycle 1 Day 1. Reported in hours.
Time frame: Assessed from the first study-drug administration onward at scheduled tumor-assessment visits (typically every 8-12 weeks) and reported at the end of the follow-up period (up to the study's planned closure, e.g., ~24 months).
Cohort 6 (iRECIST) Proportion of participants who achieve a confirmed complete response (CR) or partial response (PR) as assessed by the investigator using iRECIST criteria.
Time frame: From Day 1 of first study-drug administration to first documented disease progression (per irRECIST/iRECIST) or death from any cause, whichever occurs first, assessed up to 24 months.
Cohort 6 (iRECIST) Time from the first dose of study drug to the first occurrence of disease progression (per iRECIST) or death from any cause, whichever comes first.
Time frame: From Day 1 of first study-drug administration to the date of first confirmed complete or partial response, assessed up to 24 months
Cohort 6 (iRECIST) - Interval between the first study-drug administration and the date of the first documented objective response (CR or PR) per iRECIST.
Time frame: Assessed at each tumor-assessment visit (baseline, Week 8 ± 1, Week 16 ± 2, Week 24 ± 2, and thereafter every 12 weeks) through 24 months
Cohort 6 (iRECIST) - Proportion of participants who achieve CR, PR, or stable disease (SD) according to iRECIST.
Time frame: From the date of first confirmed response to subsequent disease progression or death, whichever occurs first, assessed up to 24 months.
Cohort 6 (iRECIST) Time from the date of the first documented response (CR or PR) until disease progression (per iRECIST) or death, whichever occurs first.
ImmunityBio, Inc.
Industry
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
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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