IGF Inhibition With Xentuzumab Prior to Radical Prostatectomy

NCT05110495 | Completed Early Phase 1 Results

• 1 other identifier: OCTO-084
• Study Type: interventional
• Target: 27
• Locations: 1 country
• Sites: 1

Brief Summary

The WINGMEN trial aims to understand how a hormone-like protein called insulin-like growth factor (IGF) helps prostate cancers grow and become aggressive. IGF is required for normal development, and also helps cancers grow and spread. Men with high blood IGF are at increased risk of developing prostate cancer, and tall men are more likely to get aggressive prostate cancer. The WINGMEN trial will recruit 30 men with prostate cancer who have been offered an operation to remove the prostate. Most men have to wait 4-5 weeks between a decision to have prostate removal surgery, and actually having the operation. In this 4-5 week window we will offer treatment with a new IGF-blocker drug called xentuzumab. The drug is provided by Boehringer Ingelheim and the trial is funded by Prostate Cancer UK. Xentuzumab will be given as an outpatient by once weekly intravenous infusion (drip) in the Early Phase Clinical Trials Unit, Oxford Cancer Centre, Churchill Hospital. In other trials, xentuzumab is being tested in patients with advanced cancer, and is proving to be well-tolerated. After the 4-week treatment, WINGMEN trial patients will have routine prostate removal surgery. Samples of blood and prostate cancer that are surplus to diagnostic need will be taken from the diagnostic prostate biopsy (pre-xentuzumab) and the cancer removed at surgery (after xentuzumab) for research tests. These samples will be compared to measure how effectively xentuzumab reduces signs of tumour growth, and identify which genes and proteins are switched on or off by xentuzumab, and which may therefore be important in helping IGF promote prostate cancer growth. The information we get from the WINGMEN trial may help us to improve treatment of men with prostate cancer, with the long-term aim of reducing the risk of aggressive prostate cancer

Conditions

Prostate Cancer

Outcome Measures

Primary Outcomes (2)

• Percentage Change of Phospho-IGF-1R Positive Tumour Cells Following Treatment With Xentuzumab

  Diagnostic biopsies (pre-treatment) and in-theatre cores (post-treatment) were stained with phospho-IGF-1R. Percentage of positively stained tumour cells in each sample were compared and the percentage change between timepoints was quantified. A negative percentage change indicates a reduction in phospho-IGF-1R in post-treatment samples. This endpoint was designed to assess the amount of IGF pathway inhibition induced by xentuzumab.

  From first xentuzumab infusion at week 1 (pre-treatment) to surgery at week 4-13 (post-treatment). Up to 13 weeks total.

• Percentage Change of Phospho-S6 Positive Tumour Cells Following Treatment With Xentuzumab

  Diagnostic biopsies (pre-treatment) and in-theatre cores (post-treatment) were stained by phospho-S6. Percentage of positively stained tumour cells in each sample were compared and the percentage change between timepoints was quantified. A negative percentage change indicates a reduction in phospho-S6 in post-treatment samples. This endpoint was designed to assess the amount of IGF pathway inhibition induced by xentuzumab.

  From first xentuzumab infusion at week 1 (pre-treatment) to surgery at week 4-13 (post-treatment). Up to 13 weeks total.

Secondary Outcomes (4)

• Number of Participants Who Had at Least 4 Doses of Xentuzumab and Proceeded to Have Surgery Per the Protocol Schedule

  From first xentuzumab infusion at week 1 (pre-treatment) to surgery at week 4-13 (post-treatment). Up to 13 weeks total.

• Median Delay in Surgery in Participants Who Had More Than 4 Doses of Xentuzumab (and Whose Surgery Was Delayed by Factors Other Than Trial Treatment)

  From first xentuzumab infusion at week 1 (pre-treatment) to surgery at week 4-13 (post-treatment). Up to 13 weeks total.

• Number of Patients Experiencing an Adverse Event (AE) or Serious Adverse Event (SAE) While On-trial

  From consent at week -1 to the end of study visit at up to 19 weeks

• Number of Patients With Any Adverse Event Assessed as Treatment-Related (TRAE) While On-trial

  From consent at week -1 to the end of study visit at up to 19 weeks

Study Arms (1)

Xentuzumab

EXPERIMENTAL

All patients will be allocated to receive Xentuzumab

Drug: Xentuzumab

Interventions

Xentuzumab DRUG

The study IMP is xentuzumab, a humanised IgG1 monoclonal antibody that neutralises the IGF ligands to inhibit activation of IGF-1R and INSR-A, suppressing IGF-mediated proliferation, invasion and therapy resistance

Xentuzumab

Eligibility Criteria

• Age: 18 Years+
• Gender Eligibility Details: based on gender identity
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Men with prostate adenocarcinoma confirmed on prostate biopsy and with sufficient cancer-containing biopsy tissue surplus to diagnostic need to provide 2 sections for primary endpoint analysis.
• Scheduled for open or robotic radical prostatectomy
• Age ≥ 18 years
• Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 (Appendix 1)
• The patient is willing and able to comply with the protocol scheduled follow-up visits and examinations for the duration of the study
• Participant is willing and able to give informed consent.
• Participants whose partner is of child bearing potential must be willing to ensure that they or their partner use effective contraception during the trial and for 70 days thereafter.
• Adequate hematologic, renal and hepatic function, defined as follows:
• Laboratory Test Value required Hemoglobin (Hb) ≥90g/L White Blood Count (WBC) \>2.5 x 10\*9/L Absolute Neutrophil Count (ANC) ≥ 1.5 x10\*9/L Platelet count ≥ 100 x 10\*9/L AST, ALT, and alkaline phosphatase ≤ 2.5 x upper limit of normal eGFR\* ≥30ml/min
• \*eGFR calculated by Cockcroft \& Gault formula,

You may not qualify if:

• A patient will not be eligible for the trial if any of the following apply:
• Treated with systemic corticosteroids, insulin, metformin, other oral hypoglycemic agent, or anti-androgens in the 28 days prior to first dose of study drug
• Diabetes mellitus
• Previous prostate radiotherapy
• Current or previous treatment with xentuzumab or other IGF or GH -modifying therapy
• Patients who are known to be serologically positive for Hepatitis B, Hepatitis C or HIV
• Treatment with any other investigational agent, or treatment in another interventional clinical trial within 28 days prior to enrolment
• Other psychological, social or medical condition, physical examination finding or a laboratory abnormality that the Investigator considers would make the patient a poor trial candidate or could interfere with protocol compliance or the interpretation of trial results

Sponsors & Collaborators

• University of Oxford: lead
• Prostate Cancer UK: collaborator
• Boehringer Ingelheim: collaborator

Study Sites (1)

Churchill Hospital, Oxford University Hospitals

Oxford, OX3 7LE, United Kingdom

Location

MeSH Terms

Conditions

Prostatic Neoplasms

Interventions

xentuzumab

Condition Hierarchy (Ancestors)

Genital Neoplasms, Male; Urogenital Neoplasms; Neoplasms by Site; Neoplasms; Genital Diseases, Male; Genital Diseases; Urogenital Diseases; Prostatic Diseases; Male Urogenital Diseases

Results Point of Contact

• Title: Dr Simon Lord
• Organization: University of Oxford

simon.lord@oncology.ox.ac.uk

01865 227212

Study Officials

• Simon Lord, Prof

  University of Oxford

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: Yes

Study Design

• Study Type: interventional
• Phase: early phase 1
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: This is a phase 0 'window of opportunity' study testing whether xentuzumab blocks IGF signalling and markers of growth in men with localised prostate cancer scheduled for radical prostatectomy

Study Record Dates

• First Submitted: August 23, 2021
• First Posted: November 8, 2021
• Study Start: December 17, 2021
• Primary Completion: March 20, 2023
• Study Completion: May 27, 2023
• Last Updated: February 17, 2025
• Results First Posted: February 17, 2025

Record last verified: 2024-07

Data Sharing

• IPD Sharing: Will not share

Locations

GB (1)