Calcitriol in Treating Patients With a Rising PSA Level Following Treatment for Prostate Cancer

April 26, 2017 updated by: Tom Beer, OHSU Knight Cancer Institute

Phase II Study of Pulse Calcitriol in Patients With Rising PSA After Definitive Treatment for Prostate Cancer

RATIONALE: Calcitriol, a form of vitamin D, may be able to prevent or slow the growth of prostate cancer cells.

PURPOSE: Phase II trial to study the effectiveness of calcitriol in treating patients who have a rising PSA level following previous treatment for prostate cancer.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

OBJECTIVES: I. Determine the response to pulse calcitriol in patients with previously treated adenocarcinoma of the prostate with rising PSA levels. II. Assess the impact of this regimen on the slope of the PSA rise in these patients. III. Determine the qualitative and quantitative toxic effects of this regimen in these patients. IV. Assess the impact of this regimen on the quality of life of these patients.

OUTLINE: All patients remain on a reduced calcium diet for the duration of the study. Twelve hours prior to treatment, patients begin drinking 4-6 glasses of extra fluid for 3 days. Patients receive oral calcitriol over 4 hours weekly. Treatment continues in the absence of disease progression or unacceptable toxicity. Quality of life is assessed at baseline, every 4 weeks during treatment, and at the end of the study. Patients are followed for at least 1 month.

PROJECTED ACCRUAL: A total of 15-25 patients will be accrued for this study.

Study Type

Interventional

Enrollment (Actual)

25

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Oregon
      • Portland, Oregon, United States, 97239
        • OHSU Knight Cancer Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 120 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

DISEASE CHARACTERISTICS: Histologically or cytologically proven adenocarcinoma of the prostate previously treated with prostatectomy or definitive radiotherapy Rising PSA after post definitive therapy nadir on at least 3 measurements at least 2 weeks apart PSA at least 0.4 ng/mL for prostatectomy patients PSA at least 1.0 ng/mL for radiotherapy patients

PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Life expectancy: Greater than 2 months Hematopoietic: Not specified Hepatic: Not specified Renal: Phosphate no greater than 4.2 mg/dL Creatinine no greater than 1.3 mg/dL Calcium no greater than 10.5 mg/dL No history of hypercalcemia Cardiovascular: No significant heart disease No myocardial infarction within past 3 months No history of heart failure Cardiac ejection fraction at least 30% Other: No other significant active medical illness that would preclude compliance Fertile patients must use effective contraception

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No prior systemic chemotherapy for metastatic prostate cancer (except neoadjuvant treatment for localized prostate cancer) Endocrine therapy: No prior systemic hormonal therapy for prostate cancer (except neoadjuvant treatment for localized prostate cancer) Radiotherapy: See Disease Characteristics Surgery: See Disease Characteristics Other: No other concurrent systemic therapy for metastatic prostate cancer At least 30 days since other prior investigational drugs No concurrent digoxin At least 7 days since prior thiazide diuretic therapy No concurrent magnesium containing antacids, bile resin binding drugs, or calcium supplements

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

OHSU Knight Cancer Institute

Investigators

  • Study Chair: Tomasz Beer, MD, OHSU Knight Cancer Institute

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • Lowe BA, Henner WD, Lemmon DD, et al.: Long term administration of high dose weekly oral calcitriol in patients with a rising PSA after definitive treatment for prostate cancer (PC): a phase II study. [Abstract] Proceedings of the American Society of Clinical Oncology 21: A-2446, 2002.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 1999

Primary Completion (Actual)

March 1, 2003

Study Completion (Actual)

March 1, 2003

Study Registration Dates

First Submitted

December 10, 1999

First Submitted That Met QC Criteria

June 16, 2004

First Posted (Estimate)

June 17, 2004

Study Record Updates

Last Update Posted (Actual)

April 28, 2017

Last Update Submitted That Met QC Criteria

April 26, 2017

Last Verified

April 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000067041
  • OHSU-5231
  • OCC-HOR-98068-L
  • NCI-V99-1542

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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