Flag of the European Union EU Clinical Trials Register Help

Clinical trials

The European Union Clinical Trials Register   allows you to search for protocol and results information on:
  • interventional clinical trials that were approved in the European Union (EU)/European Economic Area (EEA) under the Clinical Trials Directive 2001/20/EC
  • clinical trials conducted outside the EU/EEA that are linked to European paediatric-medicine development

  • EU/EEA interventional clinical trials approved under or transitioned to the Clinical Trial Regulation 536/2014 are publicly accessible through the
    Clinical Trials Information System (CTIS).


    The EU Clinical Trials Register currently displays   44334   clinical trials with a EudraCT protocol, of which   7366   are clinical trials conducted with subjects less than 18 years old.   The register also displays information on   18700   older paediatric trials (in scope of Article 45 of the Paediatric Regulation (EC) No 1901/2006).

    Phase 1 trials conducted solely on adults and that are not part of an agreed paediatric investigation plan (PIP) are not publicly available (see Frequently Asked Questions ).  
     
    Examples: Cancer AND drug name. Pneumonia AND sponsor name.
    How to search [pdf]
    Search Tips: Under advanced search you can use filters for Country, Age Group, Gender, Trial Phase, Trial Status, Date Range, Rare Diseases and Orphan Designation. For these items you should use the filters and not add them to your search terms in the text field.
    Advanced Search: Search tools
     

    < Back to search results

    Download PDF

    Clinical Trial Results:
    A pilot study to assess the effect of regulatory T-cell depletion on 5T4-containing MVA(TroVax®)vaccination in patients with inoperable metastatic colorectal cancer

    Summary
    EudraCT number
    2010-024380-41
    Trial protocol
    GB  
    Global end of trial date
    23 Jun 2016

    Results information
    Results version number
    v1(current)
    This version publication date
    22 Mar 2019
    First version publication date
    22 Mar 2019
    Other versions

    Trial information

    Close Top of page
    Trial identification
    Sponsor protocol code
    SPON868-10
    Additional study identifiers
    ISRCTN number
    ISRCTN54669986
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Cardiff University
    Sponsor organisation address
    MacKenzie House, Newport Road, Cardiff, United Kingdom, CF24 0DE
    Public contact
    Chris Shaw, Cardiff University, 44 (0)29 208 79130, shawc3@cardiff.ac.uk
    Scientific contact
    Andrew Godkin, Cardiff University, 44 (0)29 2068 7003, godkinaj@cardiff.ac.uk
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    No
    Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    23 Jun 2016
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    02 Feb 2015
    Global end of trial reached?
    Yes
    Global end of trial date
    23 Jun 2016
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The main objective is to investigate whether an immune cell population that acts against the clinical benefit of the patient (i.e. in favour of the development of cancer) can be specifically reduced. This would lead to enhanced anti-tumour immune responses observed, as it has already been observed in rodents. The research question will be asked in patients with inoperable metastatic colorectal cancer.
    Protection of trial subjects
    All subjects received the treatment in a side-room away from contact with other subjects At regular intervals subjects were screened for the following safety parameters:  General physical examination (vital signs / heart / lungs / abdomen)  Full blood count  Urea and electrolytes  Liver function tests
    Background therapy
    none
    Evidence for comparator
    Colorectal cancer (CRC) is the second leading cause of death from cancer. Although early stages are often cured by surgical resection, the prognosis for patients with metastatic colorectal cancer (mCRC) is very poor, with a 5-year survival rate of 7%. More than 96% of patients with mCRC have microsatellite stable tumors that do not respond to current immunotherapies, possibly owing to decreased incidence of neoantigens. We hypothesized that in these patients, a well-targeted immune response against an up-regulated tumor antigen with minimal expression on healthy background tissues represents a potentially more effective therapy. One candidate is 5T4, a trophoblast glycoprotein with restricted expression to several human adenocarcinomas, including more than 90% of CRCs.7 Previous studies demonstrated that 5T4-specific interferon-γ–positive (IFN-γ+) T-cell responses correlate with tumor stage, providing protection against metastasis. Herein, we sought to improve 5T4 immune responses in patients with mCRC through vaccination with an immunogenic, nonreplicating modified vaccinia Ankara–5T4 (MVA-5T4; TroVax; Oxford BioMedica, plc). This vaccine has demonstrated efficacy in preclinical models of colon cancer via the induction of humoral anti-5T4 responses. Early indications in mCRC demonstrated an excellent safety profile, with the induction of anti-5T4 responses correlating with disease control, thus warranting further studies in randomized clinical trials. Given that activation of the adaptive immune response may concurrently stimulate tumor-specific regulatory T (Treg) cells, we also sought to test the hypothesis that the effectiveness of cancer vaccines is improved by prior administration of a Treg-depleting agent. In low doses, cyclophosphamide has demonstrated numerous immune-potentiating effects, including the depletion and reduced functionality of Tregs. However, to date, low-dose metronomic cyclophosphamide treatment has not been evaluated in a randomized trial.
    Actual start date of recruitment
    09 Jul 2012
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    Yes
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    United Kingdom: 52
    Worldwide total number of subjects
    52
    EEA total number of subjects
    52
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    0
    Infants and toddlers (28 days-23 months)
    0
    Children (2-11 years)
    0
    Adolescents (12-17 years)
    0
    Adults (18-64 years)
    26
    From 65 to 84 years
    26
    85 years and over
    0

    Subject disposition

    Close Top of page
    Recruitment
    Recruitment details
    From July 9, 2012, through February 8, 2016, 55 patients were recruited and randomized in a single center in the Clinical Research Facility, University Hospital of Wales, Cardiff.

    Pre-assignment
    Screening details
    55 patients were screened and all were randomised. One patient from group 3 withdrew consent before receiving the allocated intervention, and 1 patient each from groups 1 and 3 were later found to have undergone a curative procedure before enrolment.

    Period 1
    Period 1 title
    overall trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Not blinded
    Blinding implementation details
    N/A

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Group 1: watch and wait
    Arm description
    watch and wait
    Arm type
    No intervention

    Investigational medicinal product name
    No investigational medicinal product assigned in this arm
    Arm title
    Group 2: cyclophosphamide only
    Arm description
    cyclophosphamide only
    Arm type
    Experimental

    Investigational medicinal product name
    cyclophosphamide
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Cyclophosphamide (Pharmacia Ltd) was orally administered in doses of 50 mg twice per day on treatment days 1 to 7 and 15 to 21 or until the patient experienced relapse

    Arm title
    Group 3: MVA-5T4 only
    Arm description
    MVA-5T4
    Arm type
    Experimental

    Investigational medicinal product name
    MVA-5T4
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Injection
    Routes of administration
    Intramuscular use
    Dosage and administration details
    MVA-5T4 was administered in an intramuscular injection at a dose of 1 × 109 50% tissue culture infectious dose (TCID50) on treatment days 22, 36, 50, 64, 78, and 106.

    Arm title
    Group 4: cyclophosphamide and MVA-5T4
    Arm description
    cyclophosphamide and MVA-5T4
    Arm type
    Experimental

    Investigational medicinal product name
    cyclophosphamide
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Cyclophosphamide (Pharmacia Ltd) was orally administered in doses of 50 mg twice per day on treatment days 1 to 7 and 15 to 21 or until the patient experienced relapse

    Investigational medicinal product name
    MVA-5T4
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Injection
    Routes of administration
    Intramuscular use
    Dosage and administration details
    MVA-5T4 was administered in an intramuscular injection at a dose of 1 × 109 50% tissue culture infectious dose (TCID50) on treatment days 22, 36, 50, 64, 78, and 106.

    Number of subjects in period 1
    Group 1: watch and wait Group 2: cyclophosphamide only Group 3: MVA-5T4 only Group 4: cyclophosphamide and MVA-5T4
    Started
    8
    9
    17
    18
    Completed
    8
    9
    17
    18

    Baseline characteristics

    Close Top of page
    Baseline characteristics reporting groups
    Reporting group title
    Group 1: watch and wait
    Reporting group description
    watch and wait

    Reporting group title
    Group 2: cyclophosphamide only
    Reporting group description
    cyclophosphamide only

    Reporting group title
    Group 3: MVA-5T4 only
    Reporting group description
    MVA-5T4

    Reporting group title
    Group 4: cyclophosphamide and MVA-5T4
    Reporting group description
    cyclophosphamide and MVA-5T4

    Reporting group values
    Group 1: watch and wait Group 2: cyclophosphamide only Group 3: MVA-5T4 only Group 4: cyclophosphamide and MVA-5T4 Total
    Number of subjects
    8 9 17 18 52
    Age categorical
    Units: Subjects
        In utero
    0
        Preterm newborn infants (gestational age < 37 wks)
    0
        Newborns (0-27 days)
    0
        Infants and toddlers (28 days-23 months)
    0
        Children (2-11 years)
    0
        Adolescents (12-17 years)
    0
        Adults (18-64 years)
    0
        From 65-84 years
    0
        85 years and over
    0
    Age continuous
    Age
    Units: years
        arithmetic mean (standard deviation)
    62.5 ( 11.41 ) 64.6 ( 5.94 ) 63.4 ( 10.67 ) 65.5 ( 11.18 ) -
    Gender categorical
    Units: Subjects
        Female
    2 5 3 4 14
        Male
    6 4 14 14 38

    End points

    Close Top of page
    End points reporting groups
    Reporting group title
    Group 1: watch and wait
    Reporting group description
    watch and wait

    Reporting group title
    Group 2: cyclophosphamide only
    Reporting group description
    cyclophosphamide only

    Reporting group title
    Group 3: MVA-5T4 only
    Reporting group description
    MVA-5T4

    Reporting group title
    Group 4: cyclophosphamide and MVA-5T4
    Reporting group description
    cyclophosphamide and MVA-5T4

    Primary: Immunological response

    Close Top of page
    End point title
    Immunological response [1]
    End point description
    Immunological response defined as an increase from baseline to any point up to day 29 of 105 IFN-γ sport forming T-cells per 100,000 cultured PBMC
    End point type
    Primary
    End point timeframe
    Start of treatment to day 22
    Notes
    [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: Please see the linked papers in "More information" for full details of the analysis of this study
    End point values
    Group 1: watch and wait Group 2: cyclophosphamide only Group 3: MVA-5T4 only Group 4: cyclophosphamide and MVA-5T4
    Number of subjects analysed
    8
    9
    17
    18
    Units: Patients with response
    0
    8
    0
    11
    No statistical analyses for this end point

    Adverse events

    Close Top of page
    Adverse events information
    Timeframe for reporting adverse events
    Weekly for the first 4 weeks
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    CTCAE
    Dictionary version
    4
    Reporting groups
    Reporting group title
    Group 1: watch and wait
    Reporting group description
    watch and wait

    Reporting group title
    Group 2: cyclophosphamide only
    Reporting group description
    cyclophosphamide only

    Reporting group title
    Group 3: MVA-5T4 only
    Reporting group description
    MVA-5T4

    Reporting group title
    Group 4: cyclophosphamide and MVA-5T4
    Reporting group description
    cyclophosphamide and MVA-5T4

    Serious adverse events
    Group 1: watch and wait Group 2: cyclophosphamide only Group 3: MVA-5T4 only Group 4: cyclophosphamide and MVA-5T4
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    3 / 17 (17.65%)
    3 / 18 (16.67%)
         number of deaths (all causes)
    0
    0
    0
    0
         number of deaths resulting from adverse events
    0
    0
    0
    0
    General disorders and administration site conditions
    Fever
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    0 / 18 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Gastrointestinal disorders
    Abdominal pain
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    2 / 18 (11.11%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Haemorrhage
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    0 / 18 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Group 1: watch and wait Group 2: cyclophosphamide only Group 3: MVA-5T4 only Group 4: cyclophosphamide and MVA-5T4
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    4 / 8 (50.00%)
    7 / 9 (77.78%)
    13 / 17 (76.47%)
    16 / 18 (88.89%)
    Investigations
    Raised ALP
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    0 / 18 (0.00%)
         occurrences all number
    0
    0
    1
    0
    Injury, poisoning and procedural complications
    Injection site reaction
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    7 / 17 (41.18%)
    5 / 18 (27.78%)
         occurrences all number
    0
    0
    7
    5
    Stoma site pain
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    1 / 18 (5.56%)
         occurrences all number
    0
    0
    0
    1
    Cardiac disorders
    Atrial fibrillation
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    1 / 18 (5.56%)
         occurrences all number
    0
    0
    0
    1
    Transient ischaemic attack
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    0 / 18 (0.00%)
         occurrences all number
    0
    0
    1
    0
    Nervous system disorders
    Paresthesia
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    1 / 18 (5.56%)
         occurrences all number
    0
    0
    0
    1
    General disorders and administration site conditions
    Fatigue
         subjects affected / exposed
    0 / 8 (0.00%)
    1 / 9 (11.11%)
    0 / 17 (0.00%)
    2 / 18 (11.11%)
         occurrences all number
    0
    1
    0
    2
    Headache
         subjects affected / exposed
    0 / 8 (0.00%)
    1 / 9 (11.11%)
    1 / 17 (5.88%)
    1 / 18 (5.56%)
         occurrences all number
    0
    1
    1
    1
    Blood and lymphatic system disorders
    Haematochezia
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    2 / 18 (11.11%)
         occurrences all number
    0
    0
    0
    0
    Embolism
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    0 / 18 (0.00%)
         occurrences all number
    0
    0
    1
    0
    Anaemia
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    2 / 18 (11.11%)
         occurrences all number
    0
    0
    0
    2
    Ear and labyrinth disorders
    Dizziness
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    2 / 18 (11.11%)
         occurrences all number
    0
    0
    0
    2
    Gastrointestinal disorders
    Nausea
         subjects affected / exposed
    1 / 8 (12.50%)
    0 / 9 (0.00%)
    2 / 17 (11.76%)
    6 / 18 (33.33%)
         occurrences all number
    1
    0
    2
    6
    Diarrhoea
         subjects affected / exposed
    0 / 8 (0.00%)
    1 / 9 (11.11%)
    0 / 17 (0.00%)
    1 / 18 (5.56%)
         occurrences all number
    0
    1
    0
    1
    Constipation
         subjects affected / exposed
    0 / 8 (0.00%)
    1 / 9 (11.11%)
    2 / 17 (11.76%)
    2 / 18 (11.11%)
         occurrences all number
    0
    1
    2
    2
    Abdominal pain
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    2 / 18 (11.11%)
         occurrences all number
    0
    0
    1
    2
    Aphthous ulcer
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    0 / 17 (0.00%)
    1 / 18 (5.56%)
         occurrences all number
    0
    0
    0
    1
    Respiratory, thoracic and mediastinal disorders
    Infection
         subjects affected / exposed
    1 / 8 (12.50%)
    2 / 9 (22.22%)
    7 / 17 (41.18%)
    2 / 18 (11.11%)
         occurrences all number
    1
    2
    7
    2
    Skin and subcutaneous tissue disorders
    Erythema
         subjects affected / exposed
    0 / 8 (0.00%)
    1 / 9 (11.11%)
    2 / 17 (11.76%)
    0 / 18 (0.00%)
         occurrences all number
    0
    1
    2
    0
    Renal and urinary disorders
    Urinary tract infection
         subjects affected / exposed
    0 / 8 (0.00%)
    0 / 9 (0.00%)
    1 / 17 (5.88%)
    0 / 18 (0.00%)
         occurrences all number
    0
    0
    1
    0
    Musculoskeletal and connective tissue disorders
    Myalgia
         subjects affected / exposed
    2 / 8 (25.00%)
    2 / 9 (22.22%)
    2 / 17 (11.76%)
    5 / 18 (27.78%)
         occurrences all number
    2
    2
    2
    5

    More information

    Close Top of page

    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    14 Jan 2013
    Patient schedule amended, 13 week samples removed,
    14 Jul 2014
    Admin Version number, page numbers, contact details ‘tidied’, Tim Elliott’s name 1 t added, the word ‘be’ inserted paragraph 7.2.2 Inclusion criteria ‘Responding or stable disease as defined by oncologist following chemotherapy for metastatic disease, as demonstrated on CT scan in comparison with pretreatment CT scan (RECIST), within 4 weeks of trial entry’ to ‘Responding or stable disease as defined by an oncologist within 4 weeks of trial entry. The stable disease is assessed on the basis of clinical judgment and review of radiological imaging’ Exclusion criteria Subject has clinically apparent/active autoimmune disease (prior confirmed diagnosis or treatment for autoimmune disease including Systemic Lupus Erythematosis, Grave’s disease, active Hashimoto’s thyroiditis, multiple sclerosis, insulin dependent diabetes mellitus and rheumatoid arthritis). Note: subjects with non-insulin dependent diabetes mellitus can be included, as can subjects with controlled and rarely flaring rheumatoid disease and endstage insulin dependent diabetes mellitus controlled on insulin.” to “Subject has clinically active autoimmune disease (prior confirmed diagnosis or treatment for autoimmune disease including Systemic Lupus Erythematosis, Grave’s disease, active Hashimoto’s thyroiditis, multiple sclerosis, new on-set insulin dependent diabetes mellitus and rheumatoid arthritis). Note: subjects can be included with controlled and rarely flaring rheumatoid disease, endstage/advanced insulin dependent diabetes mellitus controlled on insulin, and burnt out/previously treated (e.g. radioactive iodine, thyroidectomy) autoimmune thyroid disease now stable on replacement therapy.” PIS The PIS has also been updated to reflect the changes in visits for bloods which was in the last amendment but was not updated at the time - the PIS now reflects the protocol and also Consent Form, page 8 Version number (point one) has been updated.

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    None reported

    Online references

    http://www.ncbi.nlm.nih.gov/pubmed/28880972
    http://www.ncbi.nlm.nih.gov/pubmed/28855352
    For support, Contact us.
    The status and protocol content of GB trials is no longer updated since 1 January 2021. For the UK, as of 31 January 2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI. Legal notice
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

    European Medicines Agency © 1995-Sat May 03 21:19:54 CEST 2025 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    EMA HMA