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Recruiting Phase 1 / Phase 2

HSV-tk + Valacyclovir Therapy in Combination With Brachytherapy for Recurrent Prostate Cancer

About this study

The purpose of this study is to conduct a Phase I - II clinical trial to extend preclinical studies involving in situ HSV-tk + Valacyclovir gene therapy in combination with brachytherapy for recurrent prostate cancer. This will provide a novel therapeutic approach to prostate cancer and hopefully impact on the development of metastatic disease and the control of preexisting metastasis.

Condition
Prostatic Neoplasms
Tested
HSV-tk +Valacyclovir in Combination with Brachytherapy
Sponsor
The Methodist Hospital Research Institute

Who can join

Age
Not specified
Sex
Male only
Healthy volunteers
Not accepted

Inclusion 18

  • Eligible sex: Male
  • Study condition: Prostatic Neoplasms
  • biopsy-proven local recurrence of prostate cancer without metastatic disease after the hormone therapy at least 2 year after the completion of definitive radiation therapy
  • Zubrod performance status 0-1
  • WBC ≥ 4,000/μl, platelets ≥ 100,000/μl
  • hemoglobin ≥ 8.5 mg/dl
  • normal partial thromboplastin time and prothrombin time
  • bilirubin \< 1.5 mg/dl, and AST and alanine aminotransferase \< 2.5 times the upper limit of normal
  • Serum creatinine ≤ 1.6 mg/dl
  • Must undergo pre-treatment evaluation of tumor extent and tumor measurement
  • Nutritional and general physical condition must be considered compatible with the proposed radio-therapeutic treatment
  • Not on any other experimental therapeutic cancer treatment
  • No active untreated infection
  • No major medical or psychiatric illness
  • International Prostate Symptom Score (IPSS) less than 15
  • Signed study-specific consent form prior to study entry
  • Prostate volume less than 50 cc
  • PSA \> 10ng/ml within the past 3 months may enter study

Exclusion 11

  • Symptomatic metastasis disease
  • Patients with a life expectancy \< 10 years
  • Patients on corticosteroids or any immunosuppressive drugs.
  • HIV + patients
  • Patients with acute infections (viral, bacterial, or fungal infections requiring therapy)
  • Patients with cirrhosis.
  • Patients with collagen vascular diseases
  • International Prostate Symptom Score (IPSS) greater than 15
  • Prostate volume greater than 50 cc
  • Second active cancer except cutaneous cancer
  • Patients with history of allergies to valacyclovir, acyclovier or who cannot take oral pills

Where

1 site, 1 recruiting

Houston Methodist

Houston, Texas, United States

Recruiting

Contact

Potential match only. Final eligibility is determined by the study team.