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Thoracic TumorsPhase 1/2NCT04841538

A Study of ES101 (PD-L1x4-1BB Bispecific Antibody) in Patients With Advanced Malignant Thoracic Tumors

A Phase 1/2 study testing ES101 in people with Thoracic Tumors and Non-small Cell Lung Cancer, run by Elpiscience Biopharma, Ltd..

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to evaluate the safety, RP2D and PK/pharmacodynamic profile of ES101 monotherapy in patients with advanced NSCLC and to further evaluate the antitumor efficacy of ES101 in advanced malignant thoracic tumors, including NSCLC and SCLC. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
ES101
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Jul 2021to May 2024
Phase
Phase 1/2
Are there results?
None posted in the registry

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

  • Ability to understand and the willingness to sign a written informed consent form.
  • Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 or 1.
  • At least one measurable lesion is required (RECIST v1.1)
  • Phase 1b: Subjects with pathologically or cytologically confirmed recurrent or metastatic NSCLC without known EGFR mutation and ALK and ROS1 gene rearrangements.
  • Phase II: Subjects with pathologically or cytologically confirmed recurrent or metastatic malignant thoracic tumours who have received 1-2 lines of systemic anti-tumour therapy, including platinum regimens, and have failed, including at least 2 cycles of chemotherapy.

Who cannot join

  • Prior exposure to 4-1BB agonists.
  • Receipt of any anticancer investigational product or any approved drug(s) or biological products (except hormone-replacement therapy, testosterone or oral contraceptives) within 4 weeks prior to the first dose of study drug. Previous exposure to oral fluorouracils or small molecular targeted drugs require a minimum washout period of 2 weeks or 5 half-lives prior to the first dose of study drug (whichever is longer). Previous exposure to mitomycin C or nitrosourea requires a minimum washout period of 6 weeks prior to the first dose of study drug.
  • Receipt of PD-L1 therapy within 24 weeks prior to the first dose of study drug.
  • Known allergies to CHO-produced antibodies, which in the opinion of the Investigator suggests an increased potential for an adverse hypersensitivity to ES101.
  • Grade ≥ 3 immune-related adverse events (irAEs) or irAE that lead to discontinuation of prior immunotherapy. Some exceptions as defined per protocol apply.
  • Subject has not recovered from all AEs of previous anticancer therapies to baseline or ≤ Grade 1 per CTCAE v5.0 before teh first dose of study drug. Certain exceptions as defined in protocol apply.
Show all 10Show fewer
  • Active autoimmune disease or documented history of autoimmune disease that required systemic steroids or other immunosuppressive medications. Certain exceptions as defined in protocol apply.
  • Active interstitial lung disease (ILD) or pneumonitis or a history of ILD or pneumonitis requiring treatment with steroids or other immunosuppressive medications.
  • Systemic anti-infectious drug treatments within 4 weeks prior to the first dose of study drug.
  • Pregnant or nursing females.

About this study

Official title: An Open-label, Multicenter, Multicohort Phase 1b/2 Clinical Trial of ES101 in Patients With Advanced Malignant Thoracic Tumors

The purpose of this study is to evaluate the safety, RP2D and PK/pharmacodynamic profile of ES101 monotherapy in patients with advanced NSCLC and to further evaluate the antitumor efficacy of ES101 in advanced malignant thoracic tumors, including NSCLC and SCLC.

Being tested
ES101
Keywords
ES101, INBRX-105, PD-L1, 4-1BB, PD-L1×4-1BB, PDL1, 41BB, Thoracic Tumor
Medical subject headings
Carcinoma, Non-Small-Cell Lung, Small Cell Lung Carcinoma, Thoracic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ES101Drug

    The active ingredient of ES101 is a recombinant, humanized, bispecific IgG antibody that targets the human programmed death-ligand 1 (PD-L1) receptor and the human 4-1BB receptor.

Study groups in NCT04841538
Study groupRoleWhat they receive
Cohort 1ExperimentalES101 is administered via intravenous infusion, 0.3mg/kg,once every 14 days, every 28 days as a treatment cycle.
Receives: Drug: ES101
Cohort 2ExperimentalES101 is administered via intravenous infusion, 1mg/kg,once every 14 days, every 28 days as a treatment cycle.
Receives: Drug: ES101
Cohort A1ExperimentalES101 is administered via intravenous infusion, RP2D (to be determined),once every 14 days, every 28 days as a treatment cycle.
Receives: Drug: ES101
Cohort A2ExperimentalES101 is administered via intravenous infusion, RP2D (to be determined),once every 14 days, every 28 days as a treatment cycle.
Receives: Drug: ES101
Cohort BExperimentalES101 is administered via intravenous infusion, RP2D (to be determined),once every 14 days, every 28 days as a treatment cycle.
Receives: Drug: ES101
Cohort CExperimentalES101 is administered via intravenous infusion, RP2D (to be determined),once every 14 days, every 28 days as a treatment cycle.
Receives: Drug: ES101

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Phase 1b: Frequency and severity of adverse events of ES101

    Adverse events will be assessed and assigned by the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 5.0.

    Measured: 1-2 years

  2. Phase 1b: Recommended Phase 2 Dose (RP2D) of of ES101

    RP2D of ES101 will be determined.

    Measured: 6 months

  3. Phase 2: Objective response rate (ORR)

    Tumor response will be determined by the revised Response Evaluation Criteria in Solid Tumors version 1.1 (RECISTv1.1).

    Measured: 2-3 years

Secondary outcomes (5)
  1. Anti-tumor activity of ES101

    Tumor response will be determined by the revised Response Evaluation Criteria in Solid Tumors version 1.1 (RECISTv1.1).

    Measured: 2-4 years

  2. PK profile of ES101

    Assess the relationship between ES101 exposure and efficacy/adverse events.

    Measured: 2-4 years

  3. Immunogenicity of ES101

    Frequency of anti-drug antibodies (ADA) against ES101 will be determined.

    Measured: 2-4 years

  4. Pharmacodynamic markers

    Assess PD-L1 receptor occupancy and cytokines

    Measured: 2-4 years

  5. PD-L1 expression

    Assess PD-L1 expression status of tumor tissues

    Measured: 2-4 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Apr 2021
  2. Study startJul 2021 (estimated)
  3. Primary completionDec 2023 (estimated)
  4. Study completionMay 2024 (estimated)

Why it stopped: Sponsor's clinical development strategy adjustment

Resources

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 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04841538
Sponsor's protocol ID
ES101-2001
Status last verified
Apr 2022
First submitted
8 Apr 2021
Last updated
29 Apr 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing ES101 in people with Thoracic Tumors and Non-small Cell Lung Cancer, run by Elpiscience Biopharma, Ltd..

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 5 inclusion and 10 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: withdrawn, as of the sponsor's last update on 29 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Phase 1b: Frequency and severity of adverse events of ES101 (time frame: 1-2 years). The study lists 3 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 29 Apr 2022.

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