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Prostate CancerPhase 1/2NCT00289341

Safety and Effectiveness of a Vaccine for Prostate Cancer That Uses Each Patients' Own Immune Cells.

A Phase 1/2 study testing DC/LNCaP 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 a type of vaccine as immune therapy for prostate cancer. This vaccine will be made for each participant's own immune cells (called dendritic cells) obtained by 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?
DC/LNCaP
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
24 participants
Where
1 siteUnited States
Study dates
Mar 2002to Nov 2008
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

  • Disease Characteristics
  • Histologically confirmed prostate carcinoma
  • Progressive, disease required, i.e.: elevated PSA documented to be rising on 3 occasions, either despite castrate testosterone levels (below 50 ng/dl), or after definitive local therapy (prostatectomy or radiation).
  • Prior/Concurrent Therapy
  • -Biologic therapy:
  • Recovered from toxicity of any prior therapy
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  • -Chemotherapy:
  • At least 4 weeks since chemotherapy -Endocrine evaluation/therapy
  • 3 rising PSA values at least 2 weeks apart
  • At least 2 weeks since concurrent corticosteroids (other than for replacement therapy for adrenal insufficiency)
  • Medical hormonal therapy to maintain castrate testosterone levels permitted
  • -Radiotherapy:
  • At least 4 weeks since radiotherapy
  • -Surgery:
  • Prior surgery allowed
  • Patient Characteristics
  • Age: 18 and over, able to give written informed consent. Individuals unable to provide informed consent must have consent provided by the legal guardian, or person designated by the subject to give consent on his behalf.
  • Performance status: Karnofsky 70-100%
  • Life expectancy: At least 1 year
  • Hematopoietic: obtained twice, once within 45 days prior to study entry, and again within 72 hours of study entry.
  • WBC greater than 3,800
  • Absolute neutrophils greater than 1,500
  • Absolute lymphocytes greater than 500
  • Platelets greater than 120,000
  • Hb at least 10 g/dl
  • Hepatic:
  • --Bilirubin less than 2.0 mg/dl OR
  • --SGOT less than 2 x ULN
  • Renal:
  • Creatinine no greater than 2.0 mg/dl OR
  • Creatinine clearance at least 40 ml/min
  • Rheumatologic:
  • --ANA no greater than upper limit of normal, or ANA abnormal in absence of clinical signs of autoimmunity.
  • Rheumatoid factor (RF) no greater than upper limit of normal, or RF abnormal in absence of clinical signs of autoimmunity.
  • Anti-ds DNA no greater than upper limit of normal, or anti ds DNA abnormal in absence of clinical signs of autoimmunity.
  • Immunologic:
  • Influenza serology (assessment made at time of screening).
  • Assessment of DTH response to a standard anergy panel (to include candida, trichophyton and tetanus) or to a Multitest CMI (a disposable kit for DTH testing with standardized preloaded antigens).
  • Endocrine:
  • --TSH, T3, and T4 no greater than upper limit of normal
  • Radiographic:
  • Baseline bone scan
  • Baseline CT or MRI of abdomen and pelvis

Who cannot join

  • Disease Characteristics -No active CNS metastases
  • Prior/Concurrent Therapy
  • Biologic therapy:
  • No prior autologous or allogeneic tumor vaccines
  • No concurrent other immunotherapy
  • Chemotherapy
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  • --Not previously treated with more than 2 chemotherapy regimens
  • No concurrent chemotherapy
  • Radiotherapy --No concurrent radiotherapy
  • Patient Characteristics -Cardiovascular: No NYHA class III/IV status No active angina, clinically significant cardiac arrythmia, recent (6 months) myocardial infarction
  • Pulmonary:
  • --No severe debilitating pulmonary disease
  • Other:
  • No active infection requiring antibiotics
  • No active pain requiring chronic opioid analgesics.
  • Not HIV, hepatitis B or hepatitis C virus positive; anti-HIV, HbsAg and Hep C antibody negative
  • No history of hypersensitivity to vaccine components
  • No serious uncontrolled medical illness
  • No currently active second malignancy other than non-melanoma skin cancer (note: a patient is NOT considered to have currently active malignancy if they have completed therapy and are now considered by their physician to be at less than 30% risk for relapse)
  • No history of total lymph node irradiation
  • No history of vasculitis, including but not limited to systemic necrotizing vasculitides (polyarteritis nodosa group), hypersensitivity vasculitis, Wegener's granulomatosis.
  • No history of autoimmune disease.
  • No use of hydroxyurea within 45 days of study entry
  • No receipt of immune modulators or suppressors within 30 days prior to study entry, including but not limited to interferons and thalidomide. No active requirement for corticosteroids; prior use is acceptable.
  • No psychiatric illness or social condition that, in the opinion of the investigator, would interfere with adherence to study requirements.
  • No alcohol or drug use or dependence that, in the opinion of the investigator, would interfere with adherence to study requirements.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Rockefeller University Hospital

    New York, New York, 10021

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/LNCaP) Administered Subcutaneously to Prostate Cancer Patients.

The purpose of this study is to assess the safety and activity of a type of vaccine as immune therapy for prostate cancer. This vaccine will be made for each participant's own immune cells (called dendritic cells) obtained by blood donation. Dendritic cells are immune cells, whose role is to identify foreign antigens (bacteria, viruses, or tumor cells, for example) in the body and to activate other cells of the immune system to mount an attack on that foreign antigen. Each participant will be randomized into either Arm 1 (experimental treatment only) or Arm 2 (placebo first, then the experimental treatment). Participants will be given the vaccine and three boosters as an injection. After the placebo phase, each participant in Arm 2 will crossover to the treatment phase so that all participants will eventually receive the experimental treatment.

Read the detailed description

This is a Phase I/II dendritic cell vaccine study for patients with prostate cancer. Our laboratory has demonstrated that effective tumor immunity in humans is associated with, and likely mediated at least in part by tumor antigen-specific killer T cells (Albert et al., 1998a; Darnell, 1999; Darnell and Posner, 2003). Moreover, we have demonstrated that apoptotic material derived from dying tumor cells are a potent means of delivering antigen to DCs and subsequently triggering tumor antigen-specific T cell responses ex vivo (Albert et al., 1998a; Albert et al., 1998c). In this study, patients with 3 consecutive rises in PSA measured at least 2 week apart, after definite local therapy (prostatectomy or radiation) will be recruited. Peripheral blood monocytes will be collected by leukapheresis and dendritic cells will be generated in the Cleanroom in the Laboratory of Molecular Neuro-Oncology. These dendritic cells will be pulsed with apoptotic prostate cancer cells from a cell line (LNCaP), harvested, tested for certain release criteria, and then injected as vaccine. When patients are found to be eligible for the study, they will be randomized into either the experimental group or the placebo group for the purposes of comparing adverse events between groups only. Vaccine plus 3 boosters (or placebo) will be given, each two weeks apart. After the third booster, patients will be unblinded. Those receiving the vaccine will when enter the follow up phase which includes a post treatment leukapheresis. Those in the placebo group will cross over and receive the vaccine and boosters. The primary outcomes to be evaluated are toxicity and activity. Patients will be evaluated for both local and systemic toxicity. For activity, we measure both immunological and clinical responses to the vaccine, comparing measures taken before and after vaccination, combining patients in both arms.

Conditions
Prostate Cancer
Being tested
vaccine vehicle only, DC/LNCaP
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • vaccine vehicle onlyBiological

    Subcutaneous injection of vaccine vehicle only (5% DMSO in normal saline), followed by cross-over to Arm 1 design.

  • DC/LNCaPBiological

    Subcutaneous injection of DC/LNCaP, DC/LNCaP-M1, DC/KLH

Study groups in NCT00289341
Study groupRoleWhat they receive
PlaceboPlacebo comparator12 patients in the placebo Arm for 8 weeks followed by DC/LNCAP, DC/LNCaP-M1 and DC/KLH immunizations over 8 weeks.
Receives: Biological: vaccine vehicle only
DC/LNCaPExperimental12 patients, receiving DC/LNCaP, DC/LNCaP-M1 and DC/KLH immunizations over 8 weeks
Receives: Biological: DC/LNCaP

What is being measured

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

  1. Adverse Event

    Occurrence of adverse events (AE) was compared between the placebo and vaccine groups during the blinded phase (the 1st 9 weeks). At the end of this phase, all were unblinded, and those who received placebo crossed over to now receive vaccine. All serious AEs and any other AEs that occurred 5 times or more are reported. The exact binomial test was used to compare the occurrence of each AE between groups.

    Measured: End of blinded phase (wk 9)

  2. Immunogenicity of the DC/LNCaP Vaccine. Pre- vs Post-vaccination Bulk T Cell Proliferation (3H Thymidine Incorporation) by Type of Antigen. The "Number" Indicated is the Median Difference of Post-Pre, of Each Antigen Group.

    The difference between post minus pre-vaccination bulk T cell proliferation was calculated for each antigen.

    Measured: pre- vs post-vaccination. Pre-vaccination T cells were collected at Wk 0 and post-vaccination T cells were collected at Wk 13

Secondary outcomes (1)
  1. Change in PSA Slope, Pre- vs Post-vaccination.

    To model the evolution of PSA (in log-scale) during the three study phases (pre-vaccine, vaccine, and post-vaccine phases), a mixed linear spline model was used. Two knots (one at the start of the vaccine phase and the other at the start of the post-vaccine phase) were used to directly quantify the differences in slopes between each phase. To account for the heterogeneous treatment effect and the repeated measures structure, random effects are incorporated into the model. For the general model, random effects for the intercept, slope and the first knot were considered.

    Measured: pre- vs post- vaccination PSA slopes.

Timeline

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

  1. First posted9 Feb 2006 (estimated)
  2. Study startMar 2002
  3. Primary completionNov 2008
  4. Study completionNov 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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00289341
Sponsor's protocol ID
RDA 0466
Status last verified
Jan 2013
First submitted
7 Feb 2006
Last updated
18 Jan 2013
Data monitoring committee
No

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
  • Frank MO, Kaufman J, Tian S, Suarez-Farinas M, Parveen S, Blachere NE, Morris MJ, Slovin S, Scher HI, Albert ML, Darnell RB. Harnessing naturally occurring tumor immunity: a clinical vaccine trial in prostate cancer. PLoS One. 2010 Sep 1;5(9):e12367. doi: 10.1371/journal.pone.0012367.

    PubMed 20824184

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing DC/LNCaP 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 43 inclusion and 26 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 Jan 2013. 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. Some participants in this study may receive a placebo. 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 8 Jan 2013). 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?

Adverse Event (time frame: End of blinded phase (wk 9)). 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 NCT00289341, 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 18 Jan 2013.

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