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Solid TumorPhase 1/2NCT04903873

A Study to Evaluate Safety, Efficacy, and Pharmacokinetics in Participants With Advanced Solid Tumors

A Phase 1/2 study testing EU101 in people with Solid Tumor and Renal Cell Cancer Metastatic, run by Eutilex at 6 sites in 2 countries.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Phase 1 (Dose Escalation) of this study will assess the safety, tolerability, dose-limiting toxicity (DLT), and will determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of EU101 in participants with advanced solid tumors. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
EU101
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
110 participants
Where
6 sitesin 2 countries
Study dates
31 May 2021to Dec 2025
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

  • Histologically or cytologically confirmed diagnosis of metastatic or locally advanced solid tumors for which no standard therapy exists or standard therapy has failed because of disease progression or unacceptable toxicities. Also includes patients who cannot be treated with standard therapy because of underlying/existing medical condition.
  • Cohort 1 (colorectal cancer): a) CRC (including microsatellite instability-high [MSI-H] and microsatellite-stable [MSS]) regardless of RAS mutation. b) Disease progression within 3 months after last administration of approved standard therapies. c) Prior cytotoxic chemotherapy for metastatic disease include all the following agents: fluoropyrimidine, oxaliplatin, and irinotecan
  • Adjuvant chemotherapy-based treatments count as prior therapy, as long as relapse had occurred within 6 months of completion of such therapies, prior anti-epidermal growth factor receptor (EGFR) therapy (cetuximab, panitumumab), anti-angiogenic therapy (bevacizumab, aflibercept, ramucirumab), regorafenib, and TAS-102 are allowed. d) No more than 5 prior therapies for metastatic disease. For participants who had disease recurrence within 6 months of completing adjuvant chemotherapy, the adjuvant regimen can be considered as 1 chemotherapy regimen for metastatic disease
  • Cohort 2 (NSCLC): a) NSCLC without known EGFR, anaplastic lymphoma kinase (ALK), and ROS1 genomic tumor aberrations. b) No standard therapy exists or standard therapy has failed. c) No more than 3 prior therapies for metastatic disease
  • Phase 2: At least 1 measurable lesion per RECIST version 1.1
  • Eastern Cooperative Oncology Group (ECOG) performance score of 0 to 2
Show all 11Show fewer
  • Adequate organ and bone marrow function (Hemoglobin >9.0 g/dL, Absolute neutrophil count ≥1,500/μL, Absolute lymphocyte count ≥600 and ≤2,500/μL, Platelet count ≥100,000/μL, Total bilirubin ≤1.5 × upper limit of normal, Alanine aminotransferase and aspartate aminotransferase ≤2.5 × ULN, Serum creatinine ≤1.5 × ULN or creatinine clearance >30 mL/min, Prothrombin time and activated partial thromboplastin time ≤1.5 × ULN)
  • Life expectancy of at least 12 weeks
  • Voluntarily provided a written consent to participate in the study
  • Women of childbearing potential (WOCBP) must have a negative serum pregnancy test within the 7 days before study drug administration
  • WOCBP and sexually active fertile male patients with partners who are WOCBP must agree to use 2 highly effective methods of contraception throughout the course of the study and for 12 weeks after the last dose of study drug.

Who cannot join

  • Primary central nervous system (CNS) tumor (Phase 1), CNS metastasis, and/or carcinomatous meningitis. Participants with prior brain metastases treated at least 4 weeks before the first dose of EU101 that are clinically stable and do not require chronic corticosteroid treatment are allowed. Untreated but asymptomatic and clinically stable brain metastases per investigator's discretion are allowed
  • Received prior therapy with any anti-CD137 monoclonal antibody (mAb) or agent
  • Major surgery requiring general anesthesia within 3 weeks before first dose of EU101 or still recovering from prior surgery
  • Active infection that is not controlled or requires intravenous antibiotics in the last 2 weeks
  • History of allogeneic tissue or organ transplant
  • Active hepatitis B virus or hepatitis C virus infection
Show all 17Show fewer
  • History of any noninfectious hepatitis
  • Human immunodeficiency virus (HIV) infection
  • Received or receiving systemic corticosteroid therapy or any other form of systemic immunosuppressive medicaion 1 week before first dose of EU101
  • Known severe (≥Grade 3) hypersensitivity reactions to antibody, or severe reaction to immuno-oncology agents requiring treatment with steroids
  • Konwn or suspected hypersensitivity to EU101 or any component of its formulation
  • Current or history of interstitial lung disease, anaphylaxis, uncontrolled asthma, or pneumonitis that has required systemic corticosteroids
  • Patients with second primary cancer
  • Clinically significant concurrent cardiovascular disease
  • Pregnant women, breasfeeding women, WOCBP, or men with partners who are WOCBP who do not agree to use adequate contraceptive measures
  • Determined as unable to participate in the study per investigator's judgment
  • Other protocol defined Inclusion/Exclusion criteria may apply

Trial locations and contacts

6 sites in 2 countries.

Seoyoun Kim, MPH contact

82-10-4227-0925

s.kim@eutilex.com

6 sites in 2 countries

South Korea4 sites, 4 recruiting
  • National Cancer Center

    Ilsan

    Tak Yun, MD, PhD

    Tak Yun, MD, PhD

    Not yet recruiting
  • Samsung Seoul Hospital

    Seoul

    Myung-Ju Ahn, MD, PhD

    Jong-Mu Sun, MD, PhD

    Recruiting
  • Seoul Asan

    Seoul

    Tae Won Kim, MD, PhD

    Jae-Ho Jeong, MD, PhD

    Recruiting
  • Severance Hospital

    Seoul

    Hye Ryun Kim, MD

    Min Hee Hong, MD

    Recruiting

Other trials in South Korea

United States2 sites, 2 recruiting
  • Mary Crowley Center

    Dallas, Texas, 75230

    Minal Barve, MD

    Jairo Olivares, MD

    Recruiting
  • Fox Chase Cancer Center

    Philadelphia, Pennsylvania, 19111

    Anthony Olszanski, MD

    Igor Astsaturov, MD

    Recruiting

Other trials in United States

About this study

Official title: An Open-Label, Phase 1/2 Study to Evaluate Safety, Efficacy, and Pharmacokinetics of EU101, an Agonistic Anti-CD137 (4-1BB) Monoclonal Antibody in Patients With Advanced Solid Tumors

Phase 1 (Dose Escalation) of this study will assess the safety, tolerability, dose-limiting toxicity (DLT), and will determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of EU101 in participants with advanced solid tumors. Phase 2 (Dose Expansion) of the study will assess the antitumor effect of EU101 in two indications including colorectal cancer (CRC) and non-small cell lung cancer (NSCLC).

Being tested
EU101
Keywords
Renal Cell Carcinoma, Prostate Cancer, Dose Escalation, Maximum tolerated dose
Medical subject headings
Carcinoma, Non-Small-Cell Lung, Carcinoma, Renal Cell, Prostatic Neoplasms

What participants receive

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

  • EU101Drug

    EU101 will be administered via intravenous infusion.

Study groups in NCT04903873
Study groupRoleWhat they receive
EU101: Dose Escalation CohortExperimentalParticipants with advanced solid tumors will receive EU101 intravenously once every 3 weeks (3 weeks = 1 cycle) with escalating doses starting from 0.05 milligrams per kilogram (mg/kg) to 10 mg/kg until disease progression, unacceptable toxicities or death, withdrawal of consent, end of study, or physician's decision, whichever occurs first.
Receives: Drug: EU101
EU101: Dose Expansion Cohort 1ExperimentalParticipants with CRC will receive EU101 intravenously once every 3 weeks (3 weeks = 1 cycle) with a determined recommended phase 2 dose until disease progression, unacceptable toxicities or death, withdrawal of consent, end of study, or physician's decision, whichever occurs first.
Receives: Drug: EU101
EU101: Dose Expansion Cohort 2ExperimentalParticipants with NSCLC will receive EU101 intravenously once every 3 weeks (3 weeks = 1 cycle) with a determined recommended phase 2 dose until disease progression, unacceptable toxicities or death, withdrawal of consent, end of study, or physician's decision, whichever occurs first.
Receives: Drug: EU101

What is being measured

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

  1. Phase 1: Number of Participants With Adverse Event (AEs) and Serious Adverse Events (SAEs) and Adverse Events Leading to Discontinuation

    Measured: Baseline up to 30 months

  2. Phase 1: Number of Participants With Dose Limiting Toxicity (DLT)

    Measured: At the end of Cycle 1 (Each cycle is of 21 Days)

  3. Phase 1: Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters

    Laboratory assessments include hematology, serum chemistry, other blood tests, coagulation, and urine analysis. Number of participants with clinically significant abnormalities will be reported.

    Measured: Baseline up to 24 months

  4. Phase 1: Number of Participants With Clinically Significant Abnormalities in Vital Signs

    Vital signs will include body temperature, pulse rate, and systolic and diastolic blood pressure measurements. Number of participants with clinically significant abnormalities will be reported.

    Measured: Baseline up to 24 months

  5. Phase 1: Number of Participants With Clinically Significant Abnormalities in Physical Examination

    Physical examination will include head, eyes, ears, nose and throat; heart; lungs; abdomen; skin; cervical and axillary lymph nodes; and neurological and musculoskeletal systems. Number of participants with clinically significant abnormalities will be reported.

    Measured: Baseline up to 24 months

  6. Phase 1: Number of Participants With Clinically Significant Abnormalities in 12-lead Electrocardiogram (ECG)

    ECG parameters included heart rhythm, pulse rate intervals, QRS, QT intervals, RR intervals and corrected QT(QTc) intervals. Number of participants with clinically significant abnormalities will be reported.

    Measured: Baseline up to 24 months

  7. Phase 2: Objective Response Rate (ORR)

    Objective response rate (ORR), defined as the percentage of participants with a best overall response (BOR) of either a complete response (CR) or partial response (PR), per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 for solid tumors by investigators.

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 24 months)

Secondary outcomes (21)
  1. Phase 1: Objective Response Rate (ORR)

    Objective response rate (ORR), defined as the percentage of participants with a BOR of either a complete response (CR) or partial response (PR), per RECIST version 1.1 for solid tumors by investigators.

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 24 months)

  2. Phase 1 and 2: Duration of Response (DOR)

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  3. Phase 1 and 2: Disease Control Rate (DCR)

    DCR will be defined similarly to ORR but also including stable disease (SD) in the categorization of response (i.e, RECIST response of either CR, PR, or SD).

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  4. Phase 1 and 2: Time to Response (TTR)

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  5. Phase 1 and 2: Time to Progression (TTP)

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  6. Phase 1 and 2: Durable Clinical Benefit (DCB)

    DCB will be defined similarly to DCR but additionally specifying that the disease control be achieved for at least 12 weeks consecutive (i.e, RECIST response of CR, PR or SD for greater than or equal to [>=] 12 weeks consecutive).

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  7. Phase 1 and 2: Progression-Free Survival (PFS)

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  8. Phase 1 and 2: Overall survival (OS)

    Measured: Time from first dose of study treatment assessed until disease progression, death, withdrawal of consent, physician's decision, start of new anticancer therapy, or end of study, whichever occurs first (approximately for 56 months)

  9. Phase 1 and 2: Maximum Observed Serum Concentration (Cmax) of EU101

    Cmax is defined as maximum observed serum concentration.

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  10. Phase 1 and 2: Trough Serum Concentration (Ctrough) of EU101

    Ctrough is steady-state pre-dose concentration.

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  11. Phase 1 and 2: Time to Reach Maximum Observed Serum Concentration (Tmax) of EU101

    Tmax is defined as time to reach maximum observed serum concentration.

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  12. Phase 1 and 2: Area Under the Serum Concentration-Time Curve From Time Zero to 24 Hours Post-dose (AUC0-24) of EU101

    AUC0-24 is defined as the area under the serum concentration versus time curve from time zero (pre-dose) to 24 hours post-dose (0 to 24).

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  13. Phase 1 and 2: Area Under the Serum Concentration-Time Curve From Time Zero to the Last Measurable Concentration (AUC0-last) of EU101

    AUC0-last is defined as area under the serum concentration time-curve from time zero to the time of last measured concentration.

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  14. Phase 1 and 2: Area Under the Serum Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC0-inf) of EU101

    AUCinf is defined as area under the serum concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf).

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  15. Phase 1 and 2: Elimination Half-Life Time (T1/2) of EU101

    T1/2 is defined as plasma decay half-life is the time measured for the serum concentration to decrease by one half.

    Measured: Cycle 1: Pre-dose up to 336 hours post-dose; Cycle 2: 504 hours post-dose; Cycle 3: Pre-dose (Each cycle is of 21 days)]

  16. Phase 1 and 2: Apparent Volume of Distribution (Vd/F) of EU101

    Vd/F is defined as volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired serum concentration of a drug.

    Measured: Baseline (Day 1)

  17. Phase 1 and 2: Apparent Oral Clearance of (CL/F) of EU101

    Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes.

    Measured: Baseline (Day 1)

  18. Phase 1 and 2: Mean Residence Time (MRT) of EU101

    MRT is defined as AUMC(0 - inf) divided by AUC(0 - inf), where AUMC(0 - inf) is the area under the first moment curve from time 0 extrapolated to infinite time.

    Measured: Baseline (Day 1)

  19. Phase 1 and 2: Renal clearance (CLr) of EU101

    CLr is defined as renal clearance is the volume of plasma completely cleared of EU101 by the kidneys per unit time.

    Measured: Baseline (Day 1)

  20. Phase 1 and 2: Number of Participants with Positive Antidrug Antibodies (ADA)

    The immunogenic potential of EU101 will be assessed by summarizing the number of participants who develop detectable antidrug antibody (ADAs).

    Measured: Baseline up to 56 months

  21. Phase 2: Number of Participants With AEs and SAEs by Common Terminology Criteria for Adverse Events (CTCAE) v5.0

    Measured: Time from first dose of study treatment up to 30 months

Timeline

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

  1. First posted27 May 2021
  2. Study start31 May 2021
  3. Primary completionSep 2025 (estimated)
  4. Study completionDec 2025 (estimated)

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
Sequential
Masking
None (open label)
Enrolment
110 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04903873
Sponsor's protocol ID
EU-CTS101-I-01
Status last verified
Mar 2024
First submitted
17 May 2021
Last updated
15 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Singh R, Kim YH, Lee SJ, Eom HS, Choi BK. 4-1BB immunotherapy: advances and hurdles. Exp Mol Med. 2024 Feb;56(1):32-39. doi: 10.1038/s12276-023-01136-4. Epub 2024 Jan 4.

    PubMed 38172595

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing EU101 in people with Solid Tumor and Renal Cell Cancer Metastatic, run by Eutilex at 6 sites in 2 countries.

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 11 inclusion and 17 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: status not confirmed, as of the sponsor's last update on 15 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in South Korea, 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 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Seoyoun Kim, MPH (82-10-4227-0925, s.kim@eutilex.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Phase 1: Number of Participants With Adverse Event (AEs) and Serious Adverse Events (SAEs) and Adverse Events Leading to Discontinuation (time frame: Baseline up to 30 months). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04903873, which also lists 1 linked publication.

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 15 Mar 2024.

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