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Phase II Study of Adenovirus/PSA Vaccine in Men With Hormone - Refractory Prostate Cancer (APP22)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00583024
Recruitment Status : Active, not recruiting
First Posted : December 31, 2007
Last Update Posted : January 8, 2018
Information provided by (Responsible Party):

Study Description
Brief Summary:
This investigational study involves treatment with an Ad/PSA vaccine for men with prostate cancer who present with evidence of hormone refractory metastatic disease.

Condition or disease Intervention/treatment Phase
Hormone Refractory Prostate Cancer Biological: ADENOVIRUS/PSA VACCINE Phase 2

Detailed Description:

Subjects in this trial will be eligible if they have recent evidence of hormone refractory disease (D3) and either (a) have a positive bone scan or a positive CT scan (with obvious soft tissue metastasis or lymph nodes >1 cm), with a PSA doubling time of >/= 12 months, a total PSA of < 5 mg/ml, and are asymptomatic; or (b) have a negative bone scan with any PSA doubling time, are asymptomatic, and are not a candidate for chemotherapy.

This is a virus vaccine in which the gene for prostate specific antigen (PSA) has been placed into a common cold virus termed adenovirus (Ad) to produce this Ad/PSA product. The purpose of this study is to determine whether vaccination with the Ad/PSA vaccine will induce an anti-PSA immunity that will result in the destruction of the remaining prostate cancer cells.

Subjects will be vaccinated three times, each injection administered at 30-day intervals. Based upon our earlier clinical trial, the vaccine is considered safe and should not induce any major side effects. The investigators hope that vaccination with this PSA virus will cause the body to produce immunity to the PSA and that immunity will destroy any cell that produces PSA. Since the only cells left in the body that produce PSA will be the cancer cells, the investigators propose that the vaccination and ensuing anti-PSA immunity will kill the prostate cancer cells. Importantly, this treatment should not cause any major side effects as would treatment with anti-cancer drugs.

Study Design

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 66 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase II Study of Adenovirus/PSA Vaccine in Men With Hormone - Refractory Prostate Cancer
Study Start Date : December 2007
Estimated Primary Completion Date : July 31, 2020
Estimated Study Completion Date : July 31, 2021

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arms and Interventions

Arm Intervention/treatment
Experimental: Arm A Biological: ADENOVIRUS/PSA VACCINE
1x10E8 pfu in Gelfoam subcutaneously on days 0, 30, 60

Outcome Measures

Primary Outcome Measures :
  1. PSA doubling-time response [ Time Frame: 18 months ]

Secondary Outcome Measures :
  1. Serum PSA levels [ Time Frame: 18 months ]
  2. Immune response [ Time Frame: 18 months ]

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 90 Years   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion criteria:

  • Men with prostate cancer who present with evidence of hormone refractory disease (D3).
  • Men with a positive bone scan or a positive CT scan (with obvious soft tissue metastasis or lymph nodes >1 cm), a PSA doubling time of >/= 6 months, and a total PSA of <10 ng/ml, and asymptomatic OR men with a negative bone scan and a negative CT scan with any PSA doubling time and asymptomatic.
  • Scans must be obtained within 6 weeks of initiation of treatment.
  • Written informed consent.
  • Age >/= 18 years.
  • Required laboratory values (obtained within 2 weeks of initiation of treatment)
  • Serum creatinine </= 2.0 mg/dL
  • Adequate hematologic function: granulocytes >/= 1800 per mm3, platelets >/= 100,000 per mm3, WBC >/= 3700, and lymphocytes >590.
  • Adequate hepatocellular function: AST <3x upper limit of normal and total bilirubin <1.5 mg/dl (unless bilirubin elevation is consistent with Gilbert's syndrome).
  • Castrate levels of testosterone of </= 50 ng/ml.
  • PSA can be used as an eligibility criterion must be drawn within 28 days prior to injection number 1 and will be drawn on Day 1 for use as a baseline value.

Exclusion criteria:

  • Active or unresolved clinically significant infection.
  • Parenteral antibiotics <7 days prior to initiation of treatment.
  • Evidence of prior or current CNS metastases. Specific imaging is not necessary in the absence of signs or symptoms.
  • Co-morbid medical conditions which would result in a life expectancy (participation) of less than 1 year.
  • Patients with compromised immune systems; congenital, acquired, or drug-induced (immunosuppressive agents) will be excluded from the study. Use of prednisone at doses higher than 10 mg daily (or equipotent steroid doses) for more than 7 days within 3 months of initiation of treatment is not allowed.
  • Pre-existing malignancies that required treatment within the past 5 years except for basal or squamous cell cancers of the skin.
  • Prior participation in any vaccine studies for non-infectious diseases.
  • Prior chemotherapy, defined as prior cytotoxic chemotherapy for prostate cancer (or any cancer unless more than 5 years have elapsed). Examples of cytotoxic chemotherapy are mitoxantrone/prednisone and taxanes. Drugs such as Casodex or ketoconazole treatment must have been completed at least 6 weeks prior to initiation of treatment.
  • The inability to understand the language and the clinical protocol.
  • Allergy or religious objection to pork products; Gelfoam is produced from pork.
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00583024

United States, Iowa
Holden Comprehensive Cancer Center
Iowa City, Iowa, United States, 52242
Sponsors and Collaborators
David M Lubaroff
United States Department of Defense
Principal Investigator: David M Lubaroff, PhD University of Iowa
More Information

Responsible Party: David M Lubaroff, Professor, University of Iowa
ClinicalTrials.gov Identifier: NCT00583024     History of Changes
Other Study ID Numbers: 201705744
200605710 ( Other Identifier: Initial UI IRB ID # )
First Posted: December 31, 2007    Key Record Dates
Last Update Posted: January 8, 2018
Last Verified: January 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No

Keywords provided by David M Lubaroff, University of Iowa:
prostate cancer

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Genital Diseases, Male
Prostatic Diseases
Immunologic Factors
Physiological Effects of Drugs
Hormones, Hormone Substitutes, and Hormone Antagonists