A Phase I/II Trial of UCB4594 in Participants With Advanced Cancer

May 5, 2026 updated by: Cancer Research UK

A Cancer Research UK Phase I/II Trial to Assess the Safety, Tolerability, Pharmacokinetics and Preliminary Anti-tumour Activity of UCB4594 Alone and in Combination With Anti-cancer Treatments in Participants With Advanced Malignancies

This clinical trial is looking at UCB4594. This is the first time the drug is being tested in humans. UCB4594 is a type of drug called a monoclonal antibody. It has been designed to work by targeting a protein called human leucocyte antigen G (HLA-G) that is found in high levels on some cancer cells. By attaching itself to this protein it may help the immune system to attack and kill the cancer cells.

The four main aims of the clinical trial are to find out:

  1. The best dose of UCB4594 that can be given safely to participants in the trial.
  2. What the side effects of UCB4594 are and how they can be managed.
  3. What happens to UCB4594 inside the body and how it affects cancer cells.
  4. Whether UCB4594 can cause cancer to shrink.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

What does the study involve?

This clinical trial is split into two phases.

Phase I (Module A) is the 'dose escalation' phase. This is where small groups of participants receive UCB4594 at a certain dose level starting with a low dose level. After reviewing the results obtained at each dose level, it will be decided whether or how much to increase the dose for the next group of participants. This part of the study aims to find the best dose to give that does not cause too many side effects.

Phase II is the 'dose expansion' phase. This starts when the dose escalation phase has worked out the best dose of UCB4594 to give. In this part of the trial UCB4594 will be given alone (Module B) or in combination with other anti-cancer drugs (Module C). This will allow us to find out more about how the drug is working and whether UCB4594 affects cancer. Details for Module C of the dose expansion phase will be added when the types of cancer and anti-cancer drugs are defined.

What are the possible benefits and risks of participating?

UCB4594 is a new drug that has never been given to humans before. Possible risks and benefits are based on laboratory tests and experience with similar drugs but there is not yet any information about the effects of UCB4594 in humans. Participants in the trial will be monitored closely to find out the effects of UCB4594.

Study Type

Interventional

Enrollment (Estimated)

167

Phase

  • Phase 2
  • 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 Contact

Study Locations

  • United Kingdom
      • London, United Kingdom, SE1 9RT
        • Recruiting
        • Guy's Hopsital
        • Contact:
      • Manchester, United Kingdom
      • Newcastle upon Tyne, United Kingdom, NE7 7DN
        • Recruiting
        • The Newcastle Upon Tyne Hospitals NHS Foundation Trust
        • Contact:
          • Christoph Oing, Dr
          • Phone Number: +44 (0)191 213 8476
          • Email: c.oing@nhs.net
      • Southampton, United Kingdom
        • Not yet recruiting
        • University Hospital Southampton NHS Foundation Trust
        • 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:

  1. Written (signed and dated) informed consent and capable of co-operating with investigational medicinal product (IMP) administration and follow-up
  2. Participant population: Histologically or cytologically proven advanced solid tumours (as specified below), refractory to conventional treatment, or for which no conventional therapy is considered appropriate by the Investigator or is declined by the participant. Module A (dose escalation): Tumour types which have shown high levels of human HLA-G expression (as reported in the literature): head and neck squamous cell carcinoma, non-small cell lung cancer, colorectal cancer, triple-negative breast cancer, renal cell cancer (clear cell only), oesophago-gastric cancer (excluding gastrointestinal stromal tumour), cervical cancer, ovarian cancer, pancreatic cancer. N.B. Participants with small cell type cancers on histology/cytology are excluded. Pre-treatment biopsies are mandatory for all participants. Paired biopsies will be mandatory for participants from doses of 30 mg and higher. Participants must have disease amenable to biopsy (excluding bone metastases) as deemed safe by the Investigator
  3. Measurable disease, according to RECIST v1.1
  4. Life expectancy of at least 12 weeks
  5. Eastern Cooperative Oncology Group performance status of 0 or 1
  6. Haematological and biochemical indices within defined ranges. These measurements should be performed to confirm the patient's eligibility to participate in the trial
  7. Aged 18 years or over at the time consent is given. Participants aged 16-17 years may be eligible for recruitment to the backfill cohorts in dose escalation once adequate safety and toxicity data have been established in participants aged 18 years or over. All relevant data will be reviewed and a decision on the inclusion of participants aged 16-17 years will be made by the Trial Management Group

Exclusion Criteria:

  1. Radiotherapy (except palliative), endocrine therapy (unless for non-malignant disease), chemotherapy, targeted therapy or immunotherapy, or any other IMPs during the previous 4 weeks or 5 half-lives (whichever is shorter) before the first dose of IMP
  2. Ongoing toxicity of previous treatments >CTCAE Grade 1 (except alopecia of any grade, stable Grade 2 peripheral neuropathy or hormone-replacement therapy (HRT)-managed endocrine disorders)
  3. Patients with rapidly progressing / symptomatically deteriorating brain/leptomeningeal metastases/untreated brain metastases are excluded. Patients with previously treated brain metastases are eligible if they haven't had a seizure or a clinically significant change in neurological status or required steroids in the last 2 weeks
  4. Pregnant or breastfeeding female patients (or planning to breastfeed)

  5. Women of childbearing potential. However, those not already pregnant or breastfeeding (or who discontinue breastfeeding) and meet the following are eligible:

    5.1. Have a negative serum pregnancy test within 7 days before enrolment and either:

    5.2.1. Agree to a form of highly effective contraception plus a barrier method, or

    5.2.2. Agree to sexual abstinence

    Effective from the negative pregnancy test, throughout the trial and for 10 months after the last dose of UCB4594

  6. Male patients with partners of childbearing potential. However, patients who meet the following are eligible:

    6.1. Agree to a barrier method of contraception or sexual abstinence

    6.2. Males with pregnant or breastfeeding partners must use barrier method contraception to prevent exposure of the foetus or neonate

    6.3. Non-vasectomised males must also ensure any partner of childbearing potential uses highly effective contraception or agrees to sexual abstinence

    Effective from the date of the first dose of UCB4594, throughout the trial and for 5 months after the last dose of UCB4594 N.B. Males must refrain from donating sperm for the same period

  7. Surgery from which the patient has not yet recovered
  8. High medical risk because of non-malignant systemic disease, including serious or uncontrolled infection (requiring intravenous antibiotics) or unexplained fever >38°C within 2 weeks prior to the first dose of UCB4594
  9. Known to be serologically positive for hepatitis B virus, hepatitis C virus or human immunodeficiency virus
  10. Active or suspected autoimmune disease, or any history of autoimmune condition that required systemic corticosteroids or immunosuppressive agents. Patients who have ever had a transplant are excluded. This does not apply to patients with: vitiligo, alopecia, or type I diabetes mellitus, psoriasis not requiring chronic systemic immunosuppressive treatment within the past 2 years, stable autoimmune-mediated hypothyroidism on HRT, and Raynaud's syndrome
  11. Are being treated with escalating or supraphysiologic doses of corticosteroids or immunosuppressive agents. Participants with immunotherapy-related hypophysitis adequately treated with physiologic doses of steroids are not excluded. Use of topical, ophthalmic, inhaled, intermittent steroid injections, and intranasal corticosteroids are permitted
  12. Hypersensitivity to the ingredients/excipients (including polysorbate 80) in UCB4594
  13. History of significant toxicities from treatment of immune checkpoint inhibitors (CPIs) that necessitated permanent discontinuation (Patients who started on combination CPI [e.g., ipilimumab/nivolumab] and had toxicity requiring discontinuation of one CPI [e.g., continued with nivolumab single agent] are not excluded)
  14. History of Grade ≥3 infusion-related reaction to monoclonal antibodies or similar drugs
  15. Prior treatment with HLA-G, immunoglobulin-like transcript (ILT)2 or ILT4-targeting drug
  16. Live, attenuated vaccine within 28 days prior to the first dose of IMP
  17. Increased risk due to tumour flare (e.g., an initial increase in tumour size that may lead to obstruction of airways, etc)

  18. Significant active pulmonary disease or condition at screening, including:

    18.1. Lymphangitis carcinomatosa

    18.2. History of interstitial lung disease or pulmonary fibrosis

    18.3. History of pulmonary inflammatory disease

  19. Evidence of bleeding diathesis
  20. Significant cardiovascular disease, defined as a history of: congestive heart failure requiring therapy or left ventricular ejection fraction <40%, unstable angina pectoris or myocardial infarction within 6 months prior to entry, or current poorly controlled angina (symptoms weekly or more), clinically significant cardiac arrhythmia within 6 months prior to entry (asymptomatic atrial fibrillation or asymptomatic first-degree heart block permitted), or myocarditis. Presence of symptomatic or severe valvular heart disease. Baseline QT interval corrected by Fridericia >450 msec for males and >470 msec for females on triplicate electrocardiogram is ineligible
  21. Participant in or plans to join another interventional trial
  22. Other current malignancies. Cancer survivors who have undergone potentially curative therapy for prior malignancy with no evidence of disease for 3+ years are eligible
  23. Any other condition that, in the Investigator's opinion, means the trial is not in the patient's best interest

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: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Module A (UCB4594 monotherapy dose escalation)
Participants with advanced solid tumours from tumour types with known high levels of HLA-G expression (as reported in the literature) will be recruited.
Drug: UCB4594
Participants will receive UCB4594 as an intravenous infusion once every 3 weeks for up to 18 cycles, with each cycle lasting 21 days (~1 year).
Experimental: Module B (UCB4594 monotherapy expansion)
Participants with a specific tumour type where HLA-G expression is more prevalent may be recruited to receive UCB4594 monotherapy.
Drug: UCB4594
Participants will receive UCB4594 as an intravenous infusion once every 3 weeks for up to 18 cycles, with each cycle lasting 21 days (~1 year).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Recommended Phase 2 dose (RP2D) of UCB4594
Time Frame: From Day 1 (date of first dose of UCB4594) up to Day 21.
The RP2D will be the dose(s) of UCB4594 (in units of mg) selected for further evaluation and will be determined based on the maximum tolerated dose or maximum administered dose (MTD/MAD) and all available safety, efficacy, pharmacokinetic (PK) and pharmacodynamic data (all modules - dose escalation [module A], monotherapy dose expansion [module B] and any combination modules [module C]).
From Day 1 (date of first dose of UCB4594) up to Day 21.
Frequency of adverse events (AEs) considered at least possibly related to UCB4594 (up to 18 cycles).
Time Frame: From time of informed consent up to 12 months
AE data will be collected for UCB4594 (all modules) and/or other anti-cancer treatments (Module C), and the number of Grade 3, 4 and 5 AEs at least possibly related to UCB4594 (all modules) and/or other anti-cancer treatments (Module C) for up to 18 cycles (~12 months) of dosing determined. AEs, including relatedness, seriousness and severity according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0, will be assessed by the Investigator.
From time of informed consent up to 12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of patients achieving a complete response (CR)/immune CR (iCR) or partial response (PR)/immune PR (iPR) to UCB4594 (all modules).
Time Frame: From baseline radiological disease assessment up to 13 months.
Number of patients achieving a CR/iCR or PR/iPR to UCB4594 (all modules) according to Response Evaluation Criteria in Solid Tumours (RECIST) v1.1 and immune RECIST (iRECIST).
From baseline radiological disease assessment up to 13 months.
Maximum concentration of UCB4594 (monotherapy modules; Modules A and B).
Time Frame: From Day 1 (date of first dose of UCB4594) up to 13 months.
UCB4594 concentrations will be measured in serum.
From Day 1 (date of first dose of UCB4594) up to 13 months.
Minimum concentration of UCB4594 (monotherapy modules; Modules A and B).
Time Frame: From Day 1 (date of first dose of UCB4594) up to 13 months.
UCB4594 concentrations will be measured in serum.
From Day 1 (date of first dose of UCB4594) up to 13 months.
Area under the curve of UCB4594 (monotherapy modules; Modules A and B).
Time Frame: From Day 1 (date of first dose of UCB4594) up to 13 months.
UCB4594 concentrations will be measured in serum.
From Day 1 (date of first dose of UCB4594) up to 13 months.
Steady state volume of distribution of UCB4594 (monotherapy modules; Modules A and B).
Time Frame: From Day 1 (date of first dose of UCB4594) up to 13 months.
UCB4594 concentrations will be measured in serum.
From Day 1 (date of first dose of UCB4594) up to 13 months.
Clearance of UCB4594 (monotherapy modules; Modules A and B).
Time Frame: From Day 1 (date of first dose of UCB4594) up to 13 months.
UCB4594 concentrations will be measured in serum.
From Day 1 (date of first dose of UCB4594) up to 13 months.
Frequency of AEs considered at least possibly related to UCB4594 (up to end of AE reporting period).
Time Frame: AEs are collected from the date of informed consent until 6 months after the last dose of UCB4594.
The frequency of AEs will be assessed for UCB4594 (all modules) and/or other anti-cancer treatments (Module C), and the number of Grade 3, 4 and 5 AEs at least possibly related to UCB4594 (all modules) and/or other anti-cancer treatments (Module C) determined. AEs, including relatedness, seriousness and severity according to NCI CTCAE Version 5.0, will be assessed by the Investigator.
AEs are collected from the date of informed consent until 6 months after the last dose of UCB4594.
Terminal elimination half-life of UCB4594 (Monotherapy modules; Modules A and B)
Time Frame: From Day 1 (date of first dose of UCB4594) up to 13 months.
UCB4594 concentrations will be measured in serum.
From Day 1 (date of first dose of UCB4594) up to 13 months.

Collaborators and Investigators

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

Sponsor

Cancer Research UK

Collaborators

UCB Biopharma SRL

Investigators

  • Principal Investigator: Fiona Thistlethwaite, Prof, The Christie NHS Foundation Trust

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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)

July 9, 2024

Primary Completion (Estimated)

November 1, 2029

Study Completion (Estimated)

November 1, 2029

Study Registration Dates

First Submitted

March 27, 2024

First Submitted That Met QC Criteria

April 18, 2024

First Posted (Actual)

April 24, 2024

Study Record Updates

Last Update Posted (Actual)

May 8, 2026

Last Update Submitted That Met QC Criteria

May 5, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CRUKD/24/001
  • ISRCTN26628699 (Registry Identifier: ISRCTN)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Data from this trial and the final clinical study protocol will be submitted to a public registry and will be available immediately following publication, with no end date. Individual deidentified participant data that underlie the results reported will be shared with researchers whose proposed use of the data is approved by a review committee of the Sponsor. All requests made within 5 years from the end of trial will be considered; requests made subsequently will be considered where possible. Requests should be submitted to drugdev@cancer.org.uk.

IPD Sharing Time Frame

Data from this trial and the final clinical study protocol will be submitted to a public registry and will be available immediately following publication, with no end date. Requests for individual deidentified participant data made within 5 years from the end of trial will be considered; requests made subsequently will be considered where possible.

IPD Sharing Access Criteria

Individual deidentified participant data that underlie the results reported will be shared with researchers whose proposed use of the data is approved by a review committee of the Sponsor.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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.

Clinical Trials on Uterine Cervical Neoplasms

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Ghana

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe