ClinicalTrials.gg
RecruitingNCT06332755LB-LR1109Updated Nov 24, 2025

Study to Evaluate LB-LR1109, Administered Alone for the Treatment of Solid Tumor and in Combination With Atezolizumab for the Treatment of NSCLC

A Phase 1 interventional study of Phase 1a: LB-LR1109 and Phase 1b: LB-LR1109 and Atezolizumab in Non-small Cell Lung Cancer(NSCLC), Head and Neck Squamous Cell Carcinoma(HNSCC) and Renal Cell Carcinoma(RCC), sponsored by LG Chem. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-11-24.

Sponsored by LG Chem · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started Jun 2024; still recruiting 2 years 5 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
76
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a Phase 1a/1b, first-in-human (FIH), multi-center, open-label, non-randomized, dose escalation study, designed to determine the Maximum tolerated dose(MTD)/Recommended Phase 2 dose (RP2D) and to evaluate safety, tolerability, preliminary efficacy, pharmacokinetics, immunogenicity, pharmacodynamics of LB-LR1109 as monotherapy in participants with advanced and/or metastatic non small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), renal cell carcinoma (RCC), urothelial carcinoma, or malignant melanoma and no available standard of care treatment options, and as combination therapy with atezolizumab in participants with advanced and/or metastatic NSCLC.

02

Conditions studied

  • Non-small Cell Lung Cancer(NSCLC)
  • Head and Neck Squamous Cell Carcinoma(HNSCC)
  • Renal Cell Carcinoma(RCC)
  • Urothelial Carcinoma
  • Malignant Melanoma

Keywords

  • solid tumor
03

In context

Carcinoma, Non-Small-Cell Lung

7,620 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,838 are open to participants now.

This study's planned enrollment of 76 is above the median of 62 across 6,019 interventional studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

Lead sponsor

LG Chem is the lead sponsor of 71 studies on the registry; 8 are open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 1 (8%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  1. Age ≥18 years old at the time of signing the ICF.
  2. (Phase 1a only) Participants must have 1 of the following confirmed advanced or solid tumors with measurable or non- as determined by v1.1,

    - NSCLC, HNSCC, RCC, urothelial carcinoma, or malignant melanoma.

  3. (Phase 1a only) Participants who have metastatic disease which has progressed during or after approved standard therapies or are intolerant to approved therapies, or for which the participant refuses or is ineligible for standard therapy.
  4. Performance Status (ECOG PS) score of 0 or 1.
  5. ≥12 weeks.
  6. Participants with adequate organ function
  7. No potential for childbearing or agree to use adequate
  8. Ability to understand the study purpose and procedures and have the willingness to sign a written document.
  9. (Phase 1b only ) Must have histologically confirmed advanced or metastatic NSCLC without actionable genomic alteration that have approved therapies in the location where the participant's live and with measurable disease as determined by RECIST v1.1

Key Exclusion Criteria:

  1. cardiac disease or cardiac failure.
  2. Untreated or unstable brain or central nervous system (CNS) metastases or
  3. Participants with any concurrent active
  4. Has received prior therapy targeting LILRB or immunoglobulin-like transcript pathway.
  5. History of life-threatening toxicity related to prior immune therapy
  6. Has not recovered to ≤ Grade 1 or baseline from AEs and/or complications from prior surgical intervention or any anti-cancer treatment before starting study treatment
  7. Participants must not have an active, known, or suspected disease.
  8. Evidence of active infection requiring IV antibiotic treatment ≤7 days prior to initiation of study treatment therapy (does not apply to viral infections that are presumed to be associated with the underlying tumor type required for study entry).
  9. Pregnant or lactating or expecting to conceive a child during the study or within 6 months after the last dose of study intervention.
  10. Any condition that would, in the Investigator's judgment, interfere with full participation in the study, including administration of study intervention and attending required study visits; pose a significant risk to the participant; or interfere with interpretation of study data.
  11. (Phase 1b only) Participants who were previously exposed to atezolizumab
Terms in these criteria, in plain language(12)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
76 participants (estimated)

Study arms

  • Experimental
    phase 1a: Dose escalation / LB-LR1109 monotherapy

    Drug: Phase 1a: LB-LR1109

  • Experimental
    Phase 1b: Dose escalation / LB-LR1109 in combination with Atezolizumab

    Drug: Phase 1b: LB-LR1109 and Atezolizumab

Interventions

  • DrugPhase 1a: LB-LR1109

    intravenous administration

  • DrugPhase 1b: LB-LR1109 and Atezolizumab

    intravenous administration

This study also gives Atezolizumab. No intervention listed here names it: that was found by reading the record.

06

What researchers measure

Primary outcomes

  1. Phase 1a: MTD and/or RP2D of LB-LR1109 as monotherapy in participants with advanced or metastatic solid tumors / Phase 1b: MTD and/or RP2D of LB-LR1109 as combination therapy with atezolizumab in participants with advanced or metastatic NSCLC

    Number of participants with dose-limiting toxicities (DLTs)

    Time frame: through study completion, an average of 1year

  2. Phase 1a: Incidence of Treatment-Emergent Adverse Events of LB-LR1109 as monotherapy / Phase 1b: Incidence of Treatment-Emergent Adverse Events of LB-LR1109 as combination therapy with atezolizumab

    Incidence, severity (assessed by NCI CTCAE v5.0), and causality of AEs

    Time frame: through study completion, an average of 1year

Secondary outcomes

  1. Phase 1a / 1b: Preliminary efficacy of LB-LR1109 as monotherapy and as combination therapy with atezolizumab

    ORR(overall response rate) assessed by RECIST v1.1 (%)

    Time frame: through study completion, an average of 1year

  2. Phase 1a / 1b: Antitumor efficacy of LB-LR1109 as monotherapy and as combination therapy with atezolizumab

    PFS(Progression free survival)

    Time frame: through study completion, an average of 1year

  3. Phase 1a/1b: Antitumor efficacy of LB-LR1109 as monotherapy and as combination therapy with atezolizumab

    OS (Overall survival) (months)

    Time frame: through study completion, an average of 1year

  4. Phase 1a / 1b: Pharmacokinetic profile of LB-LR1109 as monotherapy and as combination therapy with atezolizumab

    Cmax (Maximum serum drug concentration)

    Time frame: through study completion, an average of 1year

  5. Phase 1a / 1b: Characterize PK of LB-LR1109 as monotherapy and as combination therapy with atezolizumab

    Area under the concentration-time curve (AUC) 0-last

    Time frame: through study completion, an average of 1year

  6. Phase 1a / 1b: Immunogenicity of LB-LR1109 as monotherapy and as combination therapy with atezolizumab

    Number and percentage of participants with ADAs

    Time frame: through study completion, an average of 1year

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06332755
Lead sponsor
LG Chem
Responsible party
Sponsor
First posted
Mar 27, 2024
Start date
Jun 5, 2024
Primary completion
Nov 2027 (estimated)
Completion
Mar 2028 (estimated)
Last update
Nov 24, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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