Efficacy & Safety for LN144 With Pembrolizumab With High Risk Stage IIIb-dResectable Melanoma

June 2, 2025 updated by: James Isaacs, MD

A Phase I Study to Assess the Efficacy and Safety of Autologous Tumor Infiltrating Lymphocytes (LN144) With Adjuvant Pembrolizumab for Treatment of Immunotherapy Naïve Patients With High Risk Stage IIIb-dResectable Melanoma

The purpose of this study is to evaluate the efficacy of adjuvant adoptive cell therapy (ACT) via infusion of LN-144 (autologous TIL) followed by interleukin-2 (IL-2) after a nonmyeloablative lymphodepletion (NMA-LD) preparative regimen, followed by Pembrolizumab.

Study Overview

Detailed Description

Primary:

• To evaluate the efficacy of LN-144 with adjuvant Pembrolizumab in Stage IIIb-d melanoma patients as assessed by 6 and 12-month relapse-free survival (RFS)

Secondary:

  • To further evaluate the efficacy of LN-144 with adjuvant Pembrolizumab in Stage IIIb-d melanoma patients using overall survival (OS) and distant metastasis-free survival
  • To characterize the safety profile of LN-144 in Stage IIIb-d melanoma patients as measured by the incidence of Grade ≥ 3 treatment emergent adverse events (TEAEs) within 3 months of LN-144 administration
  • To identify location of relapse
  • Rate of achievable recruitment for duration of planned recruitment period

Study Type

Interventional

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Recruiting
        • Cleveland Clinic Taussig Cancer institute, Case Comprehensive Cancer Center
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Must have a confirmed diagnosis of resectable, Stage III, High-Risk melanoma defined by AJCC v8 as Stage IIIB, IIIC, or IIID.
  • Disease must be resected to no evidence of disease on imaging and no gross disease residually with the exception of positive microscopic margin. No prior treatment with immunotherapy.
  • One (1) lesion at least 1.5cm in size (solitary or aggregate) available for TIL harvesting that has not undergone prior embolization or RT in prior 3 months unless subsequent growth is demonstrated.
  • Palliative radiation therapy is permitted so long as it does not involve lesions being selected for TIL. Washout is not required if all related toxicities have resolved to ≤ Grade 1 as per CTCAE v 5.0
  • Previous surgical procedure(s) is/are permitted provided that wound healing has occurred, all complications have resolved, and at least 14 days have elapsed (for major operative procedures) prior to the tumor resection.
  • Patients must have a washout period ≥ 21 days from prior anti-cancer therapy(ies) to the start of the planned NMA-LD pre-conditioning regimen.
  • Patients must be ≥ 18 years of age at the time of consent.
  • Patients must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 and an estimated life expectancy of ≥ 3 months in the opinion of the Investigator.
  • Patients must have the following hematologic parameters:• Absolute neutrophil count (ANC) ≥ 1000/mm3, •Hemoglobin (Hb) ≥ 9.0 g/dL, •Platelet ≥ 100,000/mm3
  • Patients must have adequate organ function: •Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 3 times the upper limit of normal (≤ 3 × ULN); patients with liver metastasis ≤ 5 × ULN, •Estimated creatinine clearance (eCrCl) ≥ 40 mL/min using the Cockcroft-Gault formula at Screening, •Total bilirubin ≤ 2 mg/dL, •Patients with Gilbert's syndrome must have a total bilirubin ≤ 3 mg/dL
  • Patients of childbearing potential (or female partners of male participants) must be willing to take the appropriate precaution to avoid pregnancy or fathering a child for the duration of the study and practice an approved, highly effective method of birth control during treatment and for 12 months after their last dose of IL-2.
  • Approved methods of birth control are as follows: Combined (estrogen and progesterone containing) hormonal birth control associated with inhibition of ovulation: oral, intravaginal, transdermal, Progesterone-only hormonal birth control associated with inhibition of ovulation: oral, injectable, implantable, Intrauterine device (IUD), Intrauterine hormone-releasing system (IUS), Bilateral tubal occlusion, Vasectomized partner, True sexual abstinence when this is in line with the preferred and usual lifestyle of the patient. Periodic abstinence (eg, calendar ovulation, symptothermal, post-ovulation methods) is not acceptable
  • Patients (or legally authorized representative) must have the ability to understand the requirements of the study, have provided written informed consent as evidenced by signature on an ICF approved by an Institutional Review Board/Independent Ethics Committee (IRB/IEC), and agree to abide by the study restrictions and return to the site for the required assessments, including the OS Follow-up Period.

Exclusion Criteria:

  • Patients who have received an organ allograft or prior cell transfer therapy within the past 20 years that included a non-myeloablative or myeloablative chemotherapy regimen.
  • Patients with melanoma of uveal/ocular origin.
  • Patients who have a history of hypersensitivity to any component or excipient of LN-144 or other study drugs:

    • NMA-LD preparative regimen (cyclophosphamide, mesna, and fludarabine),
    • Proleukin®, aldesleukin, IL-2,
    • Pembrolizumab,
    • Antibiotics (ABX) of the aminoglycoside group (i.e., streptomycin, gentamicin); except those who are skin-test negative for gentamicin hypersensitivity,
    • Any component of the LN-144 infusion product formulation including dimethyl sulfoxide (DMSO), human serum albumin (HSA), IL-2, and dextran-40.
  • Patients with symptomatic and/or untreated brain metastases (of any size and any number).
  • Patients who are on chronic systemic steroid therapy except for those requiring steroid therapy for management of adrenal insufficiency; these patients may receive no more than 10 mg of prednisone or its equivalent daily.
  • Patients who are pregnant or breastfeeding.
  • Patients who have active medical illness(es) that would pose increased risk for study participation, including: active systemic infections requiring systemic ABX, coagulation disorders, or other active major medical illnesses of the cardiovascular, respiratory, or immune systems.
  • Patients must have a negative syphilis assay (per local standard, e.g., rapid plasma reagin [RPR], venereal disease research laboratory [VDRL]) and be seronegative for the human immunodeficiency virus (HIV1 and HIV2 antibody titers). Patients with positive serology for hepatitis B virus surface antigen (HBsAg), hepatitis B core antibody (anti-HBc) or hepatitis C virus (anti-HCV) indicating acute or chronic infection must have the corresponding polymerase chain reaction (PCR) assay; patients may be enrolled if the viral load by PCR is undetectable with/without active treatment. Additional serology testing may be required depending on local prevalence of certain viral exposures
  • Patients who have any form of primary immunodeficiency (e.g., severe combined immunodeficiency disease [SCID] and acquired immunodeficiency syndrome [AIDS])
  • Patients who have received a live or attenuated vaccination within 28 days prior to the start of NMA-LD pre-conditioning regimen.
  • Participant has an LVEF < 45% and is New York Heart Association (NYHA) Class 1. For participants ≥ 60 years of age OR who have a history of clinically relevant cardiac disease, no irreversible wall movement abnormality is demonstrated on a cardiac stress test (or equivalent local standard stress test). Participants with an abnormal cardiac stress test may be considered for study participation if they have adequate ejection fraction and cardiology clearance with approval of the Investigator.
  • Patients who have obstructive or restrictive pulmonary disease and have a documented forced expiratory volume in 1 second (FEV1) of ≤ 60% of predicted normal:

    • If a patient is not able to perform reliable spirometry due to abnormal upper airway anatomy (i.e., tracheostomy), a 6-minute walk test may be used to assess pulmonary function.,
    • Patients who are unable to walk a distance of at least 80% predicted for age and sex or demonstrates evidence of hypoxia at any point during the test (SpO2 < 90%) are excluded.
  • Patients who have had another primary malignancy within the previous three (3) years (with the exception of carcinoma in situ of the breast, cervix, or bladder; localized prostate cancer; non-melanoma skin cancer that has been adequately treated; or other cancers that in the opinion of the investigator do not place the subject at a significantly higher risk).
  • Active infections, including COVID-19, within 30 days
  • Participated in another clinical study with an investigational product within 21 days of the initiation of treatment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: LN-144 Therapy

All patients will receive LN-144 therapy, consisting of these steps:

  1. Harvest (surgical resection of tumor tissue) to provide the autologous tissue that serves as the source of LN-144.
  2. Production of LN-144 investigational product (IP) at a central Good Manufacturing Practice (GMP) facility
  3. A 5-day nonmyeloablative lymphodepletion (NMA-LD) preparative regimen
  4. Infusion of the LN-144 product (Day 0)
  5. Administration of IV interleukin-2 (IL-2) for ≤ 6 doses.
  6. Infusion of pembrolizumab 200 mg (Week 12) every 3 weeks for up to 1 year (17 cycles)
A tumor sample is resected from each patient and cultured ex vivo to expand the population of tumor infiltrating lymphocytes. After lymphodepleting chemotherapy including cyclophosphamide and fludarabine, patient is infused with autologous TIL (LN-144), followed by IL-2.
Other Names:
  • Autologous Tumor Infiltrating Lymphocytes (TIL)
Given by IV.
Other Names:
  • Cytoxan
Given by IV.
Other Names:
  • Mesnex
Given by IV.
Other Names:
  • Fludara
Given by IV.
Other Names:
  • Proleukin
  • Aldesleukin
Given by IV.
Other Names:
  • Keytruda

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
LN-144 Efficacy
Time Frame: 1 year following TIL infusion
measured as the rate of RFS (Relapse-Free Survival)
1 year following TIL infusion
LN-144 Safety Profile
Time Frame: Within 30 days of LN-144 administration
measured by the incidence Serous Adverse Events (SAE)
Within 30 days of LN-144 administration

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
LN-144+ Pembrolizumab Efficacy Overall Survival (OS)
Time Frame: 1 year after initial treatment
measured using overall survival (OS). This is the length of time from the start of treatment to a given time point that measures participants on the study that are still alive
1 year after initial treatment
LN-144+ Pembrolizumab Efficacy Relapse-Free Survival (RFS)
Time Frame: 1 year after initial treatment
measured using Relapse-free survival described as the length of time after primary treatment for a cancer ends that the patient survives without any signs or symptoms of that cancer
1 year after initial treatment
LN-144+ Pembrolizumab Efficacy Distant Metastasis-Free Survival (DMFS)
Time Frame: 1 year after inital treatment
measured using distant metastasis-free survival (DMFS). This is the length of time from the start of treatment for cancer that a patient is still alive and the cancer has not spread to other parts of the body.
1 year after inital treatment
LN-144 Safety Profile
Time Frame: within 12 months of LN144 administration
Incidence of adverse events following LN144 administration
within 12 months of LN144 administration
Location of relapse
Time Frame: Up to 3 years
In participants who relapse, the location of the relapse will be located using standard imaging and physical exam
Up to 3 years
Rate of Achievable Recruitment
Time Frame: 2 years from the study start date
The number of participants enrolled will be counted in which an "achievable" recruitment is considered to be 1 participant every 2-3 months.
2 years from the study start date

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: James Isaacs, MD, Cleveland Clinic Taussig Cancer institute, Case Comprehensive Cancer Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 2, 2024

Primary Completion (Estimated)

January 1, 2028

Study Completion (Estimated)

July 1, 2028

Study Registration Dates

First Submitted

December 14, 2023

First Submitted That Met QC Criteria

January 2, 2024

First Posted (Actual)

January 5, 2024

Study Record Updates

Last Update Posted (Estimated)

June 5, 2025

Last Update Submitted That Met QC Criteria

June 2, 2025

Last Verified

June 1, 2025

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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