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Prostate CancerPhase 1/2NCT00345293

Dendritic Cell Vaccine Study (DC/PC3) for Prostate Cancer

A Phase 1/2 study testing autologous dendritic cell vaccine (DC/PC3) in people with Prostate Cancer, run by Rockefeller University 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 purpose of this study is to assess the safety and activity of DC/PC3, a dendritic cell vaccine used as immunotherapy for prostate cancer. The vaccine is made with each participants' own immune cells obtained through blood donation. 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?
autologous dendritic cell vaccine (DC/PC3)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
13 participants
Where
1 siteUnited States
Study dates
Jun 2006to Mar 2015
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Prostate cancer
  • Rising prostate specific antigen (PSA, 3 values, each measured at least 2 weeks apart) post initial therapy (ie, radiation, prostatectomy) human leukocyte antigen A2.1 (HLA-A2.1)
  • -

Who cannot join

  • central nervous system metastasis
  • History of autoimmune disease

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Rockefeller University Hospital

    New York, New York, 10065

Other trials in United States

About this study

Official title: A Phase I/II Study of Autologous Dendritic Cells Pulsed With Apoptotic Tumor Cells (DC/PC3) Administered Subcutaneously to Prostate Cancer Patients.

The purpose of this study is to assess the safety and activity of DC/PC3, a dendritic cell vaccine used as immunotherapy for prostate cancer. The vaccine is made with each participants' own immune cells obtained through blood donation. Dendritic cells are known to activate other immune cells such as T cells, that are able to mount an attack against cancer cells. The dendritic cell vaccine will be administered as injections every 2 weeks over a course of 2 months.

Read the detailed description

See Brief Summary.

Conditions
Prostate Cancer
Being tested
autologous dendritic cell vaccine (DC/PC3)
Keywords
Prostate Cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • autologous dendritic cell vaccine (DC/PC3)Biological

    ex vivo generated autologous dendritic cells pulsed with apoptotic PC3 cells and pulsed with apoptotic PC3-M1 cells(control apoptotic cells) and pulsed with KLH (control antigen). maximum dose of DC/PC3 that we are able to generate from their initial leukaphereses product, up to a maximum of 10 x 106 DCs. Doses in the range of 105 to 10 x 106 DCs have been used clinically without toxicity

Study groups in NCT00345293
Study groupRoleWhat they receive
DC/PC3 vaccineExperimental3 subcutaneous injections of ex vivo-generated autologous dendritic cell vaccine: 1) pulsed with apoptotic PC3 cells; 2) pulsed with apoptotic PC3-M1 cells, and 3) pulsed with keyhole limpet hemocyanin (KLH, control antigen)
Receives: Biological: autologous dendritic cell vaccine (DC/PC3)

What is being measured

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

  1. Toxicity

    adverse events

    Measured: through week 29

Secondary outcomes (2)
  1. Immunogenicity

    The Tritiated thymidine proliferation assay is used to assess samples collected pre-treatment and those collected post-treatment; the outcome measure is the change in counts per minute (post-treatment counts minus pre-treatment counts).

    Measured: pre and post treatment

  2. Clinical Response

    Measured: Post treatment

Timeline

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

  1. First posted28 Jun 2006 (estimated)
  2. Study startJun 2006
  3. Primary completionDec 2013
  4. Study completionMar 2015

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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00345293
Sponsor's protocol ID
RDA-0537
Status last verified
Apr 2016
First submitted
26 Jun 2006
Last updated
18 Apr 2016
Data monitoring committee
Yes

Publications

  • Frank MO, Kaufman J, Parveen S, Blachere NE, Orange DE, Darnell RB. Dendritic cell vaccines containing lymphocytes produce improved immunogenicity in patients with cancer. J Transl Med. 2014 Dec 5;12:338. doi: 10.1186/s12967-014-0338-3.

    PubMed 25475068

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing autologous dendritic cell vaccine (DC/PC3) in people with Prostate Cancer, run by Rockefeller University 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 3 inclusion and 2 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 18 Apr 2016. 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 combined 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.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Apr 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Toxicity (time frame: through week 29). 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 NCT00345293, which also lists 1 linked publication.

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 18 Apr 2016; AzTrials last refreshed its copy on 31 Oct 2026.

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