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Prostate CancerPhase 1NCT04701021

TENDU Vaccine in Patients With Relapse After Primary Radical Prostatectomy

A Phase 1 study testing TENDU in people with Prostate Cancer, run by Ultimovacs ASA at 1 site in Norway.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a phase I, dose selection study of safety and effect of different doses of TENDU vaccine, a therapeutic peptide conjugate vaccine, in patients with relapse after primary radical prostatectomy. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
TENDU
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteNorway
Study dates
17 Feb 2021to 16 Aug 2023
Phase
Phase 1
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
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males ≥18 years of age
  • PSA rise >0.2 ng/mL less than 18 months following radical prostatectomy (RP) and pathological ISUP Grade 4-5 (Gleason score >7), or persisting PSA >0.1 ng/mL six weeks after RP and short PSA-DT, eligible for salvage radiotherapy and short term androgen deprivation therapy
  • ECOG performance status 0 or 1
  • Adequate organ function as indicated by the following laboratory values:
  • White blood cell count ≥ 2,500/μL
  • Absolute neutrophil count ≥ 1,000/μL
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  • Platelets ≥ 100,000/μL
  • Haemoglobin ≥ 9 g/dL or ≥ 5.6 mmol/L
  • Serum creatinine ≤ 1.5 x upper limit of normal (ULN)
  • Serum total bilirubin ≤ 1.5 x ULN or direct bilirubin ≤ ULN for patients with total bilirubin levels > 1.5 ULN
  • AST and ALT ≤ 2.5 x ULN
  • Patients with potential to father children must use an acceptable contraceptive method
  • Written informed consent prior to any study-specific evaluations

Who cannot join

  • History of hematologic or primary solid tumor malignancy other than prostate cancer with remission less than 3 years prior study enrolment.
  • Metastatic disease assessed by PSMA PET/CT
  • Hypersensitivity to the active substance or any of its excipients
  • Current use of androgen deprivation therapy or radiotherapy to the pelvis
  • Known history or any evidence of active, non-infectious pneumonitis
  • History of New York Heart Association class 3-4 congestive heart failure or history of myocardial infarction within 6 months of starting study treatment
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  • Active autoimmune disease that has required systemic treatment in past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Patients with vitiligo or resolved childhood asthma/atopy would be an exception to this rule.
  • Active infection requiring systemic therapy
  • Diagnosis of immunodeficiency
  • Any use of immunosuppressive (cytotoxic chemotherapy, systemic steroids) or immunomodulating agents within 8 weeks of study entry.
  • Hepatitis B or Hepatitis C or Human Immunodeficiency Virus positive
  • Expected to require any other form of systemic or localized antineoplastic therapy during the study
  • Received any other investigational therapy within 4 weeks of the first dose of study treatment
  • Any medical, psychological, social or neurological condition that would make it difficult for the patient to participate in the study and comply with the study procedures, restrictions, and requirements

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • Oslo University Hospital, The Norwegian Radium Hospital

    Oslo, 0379

Other trials in Norway

About this study

Official title: Safety and Effect of Different Doses of TENDU Vaccine, a Therapeutic Peptide Conjugate Vaccine, in Patients With Relapse After Primary Radical Prostatectomy

This is a phase I, dose selection study of safety and effect of different doses of TENDU vaccine, a therapeutic peptide conjugate vaccine, in patients with relapse after primary radical prostatectomy.

Read the detailed description

This is a open label dose selection study to investigate the safety, tolerability, immune response and preliminary clinical effect of different doses of the TENDU vaccine. TENDU is a synthetic therapeutic peptide conjugate vaccine intended for treatment of prostate cancer.

The patients enrolled in this study is adults with documented progressive disease after radical prostatectomy and who are eligible for salvage radiotherapy and short-term (6 months) androgen deprivation therapy.

All patients taking part at the study must be vaccinated with a Boostrix vaccine (including tetanus antigen) one week prior to the first TENDU vaccine treatment.

Three different doses, 40, 400 and 960 μg of the TENDU vaccine are to be investigated.

The vaccine is administrated by subcutaneous injections with one injection per drug substance (four separate injections) consecutively. The TENDU vaccine will be given four times during a treatment period lasting for 6 weeks and followed up for 6 months after the last treatment.

In total between 12 to 18 patients will be enrolled with a 3+3 design in each dose cohort. The first patient will receive the lowest dose of the TENDU vaccine, and after the treatment is completed, a safety evaluation will be done to evaluate enrolment of the next patients in this cohort. If one patient develops a dose limiting toxicity at a specific dose, an additional three patients are to be enrolled into that same dose cohort, and on the recommended dose an addition of 3 patients will be enrolled.

Conditions
Prostate Cancer
Being tested
TENDU
Keywords
prostate, vaccine, cancer
Medical subject headings
Prostatic Neoplasms, Neoplasms

What participants receive

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

  • TENDUBiological

    The vaccine is administrated by subcutaneous injections, one injection per drug substance (four separate injections) consecutively.

Study groups in NCT04701021
Study groupRoleWhat they receive
TENDUExperimentalThree different doses of the TENDU vaccine are to be investigated: 40, 400 and 960μg.
Receives: Biological: TENDU

What is being measured

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

  1. Assessment of safety and tolerability of TENDU vaccine

    Frequency and severity of Adverse Events (AEs) graded according to CTCAE version 5.0.

    Measured: Time from enrollment until 6 months after last dose

Secondary outcomes (3)
  1. Assessment of Immunological response

    To evaluate the immunological response against the prostate specific peptides in the patients at baseline and after TENDU vaccinations.

    Measured: Time from enrollment until 6 months after last dose

  2. Assessment of anti-tetanus protein and anti-MTTE titers

    To evaluate the preliminary anti-tumor activity of the TENDU vaccine in patients pre- and post the vaccination with Boostrix (including tetanus antigen) and the TENDU vaccinations by evaluation of anti-tetanus protein and anti-MTTE titers.

    Measured: Time from enrollment until 6 months after last dose

  3. Assessment of Anti-tumor activity

    To evaluate the preliminary anti-tumor activity of the TENDU vaccine according to changes in the PSA, PAP, PSMA and PET/CT.

    Measured: Time from enrollment until 6 months after last dose

Timeline

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

  1. First posted8 Jan 2021
  2. Study start17 Feb 2021
  3. Primary completion16 Aug 2023
  4. Study completion16 Aug 2023

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
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04701021
Sponsor's protocol ID
TENDU-101
Status last verified
Jul 2024
First submitted
5 Jan 2021
Last updated
8 Jul 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing TENDU in people with Prostate Cancer, run by Ultimovacs ASA at 1 site in Norway.

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 13 inclusion and 14 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: finished, as of the sponsor's last update on 8 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Norway. 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 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.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Assessment of safety and tolerability of TENDU vaccine (time frame: Time from enrollment until 6 months after last dose). 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 8 Jul 2024.

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