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Prostate CancerPhase 1NCT00582140

Prostatic Acid Phosphatase (PAP) Vaccine in Patients With Prostate Cancer

A Phase 1 study testing pTVG-HP with rhGM-CSF in people with Prostate Cancer, run by University of Wisconsin, Madison at 1 site in United States.

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

The investigators are trying to find new methods to treat prostate cancer. The approach they investigators are taking is to try to enhance patients own immune response against the cancer. In this study the investigators will be testing the safety of a vaccine that may be able to help the body fight prostate cancer. 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?
pTVG-HP with rhGM-CSF
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteUnited States
Study dates
Mar 2005to Aug 2008
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

  • Must have histologic diagnosis of adenocarcinoma of the prostate
  • Must have completed local therapy by surgery and/or ablative radiation therapy at least 2 months prior to entry.
  • Must have clinical stage D0 disease defined by the following: In patients treated by surgery, serum PSA values must be > 2 ng/ml by two measurements at least two weeks apart. In patients treated with ablative radiation therapy, three consecutive increases in serum PSA must be documented, with at least a one month interval between values with the finalPSA > 2ng/ml.
  • Prior history of a second malignancy is allowed if treated with curative intent disease free for > 5 years.
  • Karnofsky performance score of > 70

Who cannot join

  • No evidence of immunosuppression or have been treated with immunosuppressive therapy, such as chemotherapy, chronic treatment dose corticosteroids (greater than the equivalent of 10 mg prednisone per day), or radiation therapy to >30% of the bone marrow, within 6 months of the first vaccination.
  • Must not be on concurrent androgen ablative (hormonal) therapy, or must have completed this therapy at least one month prior to study entry.
  • Must not have demonstrated PSA progression during any prior hormonal therapy or chemotherapy.
  • Must not have known evidence of bone metastases or non-regional lymph node involvement (stage D2 disease) as determined by bone scan or CT scan. -Must not have been treated previously with another investigational anti- tumor vaccine.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Wisconsin

    Madison, Wisconsin, 53792

Other trials in United States

About this study

Official title: Phase I Study of a DNA-based Vaccine Targeting Prostatic Acid Phosphatase (PAP) in Patients With Stage D0 Prostate Cancer

The investigators are trying to find new methods to treat prostate cancer. The approach they investigators are taking is to try to enhance patients own immune response against the cancer. In this study the investigators will be testing the safety of a vaccine that may be able to help the body fight prostate cancer.

Read the detailed description

The purpose of this research is to determine the safety of serial intradermal vaccinations of a DNA vaccine encoding human PAP, with GM-CSF as a vaccine adjuvant, in subjects with stage D0 prostate cancer. In addition, to determine whether PAP-specific IFNУ-secreting CD8+ T cells can be augmented in subjects with stage D0 prostate cancer by means of immunization with a plasmid DNA vaccine encoding PAP.

This is a phase I design where patients will receive the vaccine pTVG-HP with rhGM-CSF administered i.d. biweekly for 6 total doses. There will be three escalating dose cohorts. The dosing cohort considered to be the maximum tolerated dose level will be expanded up to a total of 16 patients.

Conditions
Prostate Cancer
Being tested
pTVG-HP with rhGM-CSF
Keywords
Prostate, Cancer, Stage D0, Non-Metastatic, Rising PSA
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.

  • pTVG-HP with rhGM-CSFBiological

    pTVG-HP (dose 1: 100 μg) with rhGM-CSF (200 μg); administered i.d. biweekly for 6 total doses

  • pTVG-HP with rhGM-CSFBiological

    pTVG-HP (dose 2: 500 μg) with rhGM-CSF (200 μg); administered i.d. biweekly for 6 total doses

  • pTVG-HP with rhGM-CSFBiological

    pTVG-HP (dose 3: 1,500 μg) with rhGM-CSF (200 μg); administered i.d. biweekly for 6 total doses

Study groups in NCT00582140
Study groupRoleWhat they receive
Cohort Level 1ExperimentalpTVG-HP (dose 1: 100 μg) with rhGM-CSF (200 μg); administered i.d. biweekly for 6 total doses
Receives: Biological: pTVG-HP with rhGM-CSF
Cohort Level 2ExperimentalpTVG-HP (dose 2: 500 μg) with rhGM-CSF (200 μg); administered i.d. biweekly for 6 total doses
Receives: Biological: pTVG-HP with rhGM-CSF
Cohort Level 3ExperimentalpTVG-HP (dose 3: 1,500 μg) with rhGM-CSF (200 μg); administered i.d. biweekly for 6 total doses
Receives: Biological: pTVG-HP with rhGM-CSF

What is being measured

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

  1. The primary objective of this phase I study is to determine if the vaccination with serial intradermal vaccinations of a DNA-based vaccine targeting PAP, with GM-CSF is safe (the investigators will be evaluating the degree of toxicity seen)

    Measured: During study treatment and for 15 year follow-up

  2. To determine whether PAP-specific IFNγ-secreting CD8+ T cells can be generated in patients with stage D0 prostate cancer by means of immunization with a plasmid DNA vaccine encoding PAP.

    Measured: 12 months

Secondary outcomes (1)
  1. Efficacy: Immune Response and PSA response

    Measured: During treatment and one year follow-up

Timeline

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

  1. First posted28 Dec 2007 (estimated)
  2. Study startMar 2005
  3. Primary completionAug 2008
  4. Study completionAug 2008

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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00582140
Sponsor's protocol ID
2004-0365
Other IDs
CO04806, DOD-A-13390, A534260, SMPH/MEDICINE, 2004-0365
Status last verified
Jul 2015
First submitted
19 Dec 2007
Last updated
19 Nov 2019
Results posted
No
Data monitoring committee
Yes

Publications

  • Johnson LE, Olson BM, McNeel DG. Pretreatment antigen-specific immunity and regulation - association with subsequent immune response to anti-tumor DNA vaccination. J Immunother Cancer. 2017 Jul 18;5(1):56. doi: 10.1186/s40425-017-0260-3.

    PubMed 28716080
  • Tonelli TP, Eickhoff JC, Johnson LE, Liu G, McNeel DG. Long-term follow up of patients treated with a DNA vaccine (pTVG-hp) for PSA-recurrent prostate cancer. Hum Vaccin Immunother. 2024 Dec 31;20(1):2395680. doi: 10.1080/21645515.2024.2395680. Epub 2024 Aug 29.

    PubMed 39208856

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing pTVG-HP with rhGM-CSF in people with Prostate Cancer, run by University of Wisconsin, Madison at 1 site in United States.

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 5 inclusion and 4 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 19 Nov 2019. 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 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 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?

The primary objective of this phase I study is to determine if the vaccination with serial intradermal vaccinations of a DNA-based vaccine targeting PAP, with GM-CSF is safe (the investigators will be evaluating the degree of toxicity seen) (time frame: During study treatment and for 15 year follow-up). The study lists 2 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 NCT00582140, which also lists 2 linked publications.

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 19 Nov 2019.

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