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Vaccine Treatment for Hormone Refractory Prostate Cancer

NCT00105053 · Status: COMPLETED · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 8

Last updated 2020-05-28

No results posted yet for this study

Summary

This 2-phase study will determine the safety of treating patients with prostate cancer with the genetically engineered HyperAcute-Prostate cancer vaccine. It will establish the proper vaccine dose and will examine side effects and potential benefits of the treatment. The vaccine contains killed prostate cancer cells containing a mouse gene that causes the production of a foreign pattern of protein-sugars on the cell surface. It is hoped that the immune response to the foreign substance will stimulate the immune system to attack the patient's own cancer cells that have similar proteins without this sugar pattern, causing the tumor to remain stable or shrink.

Patients 19 years of age or older with hormone refractory prostate cancer that has recurred or no longer responds to standard treatment may be eligible for this study. Candidates will be screened with medical history and physical examination, blood tests, urinalysis, chest x-rays and CT scans. MRI, PET, and ultrasound scans may be obtained if needed.

Participants will receive twelve vaccinations two weeks apart from each other. The vaccines will be injected under the skin, similar to the way a tuberculosis skin test is given. Phase I of the study will treat successive groups of patients with increasing numbers of the vaccine cells to evaluate side effects of the treatment and determine the optimum dose. Phase II will look for any beneficial effects of the vaccine given at the highest dose found to be safe in Phase I. Monthly blood samples will be drawn during the 6 months of vaccine treatment. In addition, patient follow-up visits will be scheduled every 2 months for the remaining first year (6 months) after vaccination and then every 3 months for the next 2 years for the following tests and procedures to evaluate treatment response and side effects:

* Medical history and physical examination
* Blood tests
* X-rays and various scans (nuclear medicine/CT/MRI)
* FACT-P Assessment questionnaire to measure the impact of treatment on the patient's general well-being. The questionnaire is administered before beginning treatment, monthly during treatment, and during follow-up visits after completing the treatment. It includes questions on the severity of prostate cancer symptoms and the ability to perform normal activities of daily life.

Conditions

Interventions

BIOLOGICAL

HyperAcute-Prostate Cancer Vaccine

Before enrollment in the Phase I and Phase II- Arm A studies, the patient must be determined to have measurable disease with biopsies on first recurrence or bone metastases. In the Phase II- Arm B study, patients will be men with non-measurable progressive disease as evidenced by elevated PSA only. Cells will be injected intradermally every two weeks for 12 cycles on a prime-boost regimen. Dosage will vary from 30 million to 500 million HAP cells.

Sponsors & Collaborators

  • NewLink Genetics Corporation

    lead INDUSTRY

Principal Investigators

  • Charles J. Link, M.D. · NewLink Genetics Corporation

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
19 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2005-03-31
Primary Completion
2007-09-30
Completion
2007-09-30

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00105053 on ClinicalTrials.gov