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Precancerous/Nonmalignant ConditionPhase 2NCT00118066

Calcitriol in Preventing Prostate Cancer in Patients With Prostatic Intraepithelial Neoplasia

A Phase 2 study testing calcitriol and observation in people with Precancerous/Nonmalignant Condition and Prostate Cancer, run by Rutgers, The State University of New Jersey at 5 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of calcitriol may prevent prostate cancer. It is not yet known whether calcitriol is more effective than observation in preventing prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
calcitriol and observation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
5 sitesUnited States
Study dates
May 2004to Aug 2011
Phase
Phase 2
Are there results?
None posted in the registry

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

DISEASE CHARACTERISTICS:

  • Histologically confirmed high-grade prostatic intraepithelial neoplasia
  • Diagnosed within the past 6 months
  • No evidence of prostate cancer within the past 6 months
  • No evidence of palpable nodules on digital rectal exam
  • Prostate specific antigen ≤ 10 ng/mL within the past 3 months

PATIENT CHARACTERISTICS:

Age

  • 18 and over

Performance status

  • ECOG 0-1

Life expectancy

  • Not specified

Hematopoietic

  • Absolute neutrophil count ≥ 1,500/mm^3
  • Platelet count ≥ 100,000/mm^3

Hepatic

  • SGOT and SGPT ≤ 1.5 times upper limit of normal

Renal

  • No uncontrolled renal failure
  • No cancer-related hypercalcemia or kidney stones within the past 5 years

Cardiovascular

  • No uncontrolled coronary artery disease
  • No uncontrolled congestive heart failure

Other

  • Prior malignancy allowed provided patient was curatively treated and has been disease-free for an appropriate time period for the specific cancer
  • No known HIV positivity
  • No active infection
  • No major depression or suicidal ideation
  • No other condition that would preclude study compliance
  • No other uncontrolled medical condition

PRIOR CONCURRENT THERAPY:

Biologic therapy

  • Not specified

Chemotherapy

  • No prior chemotherapy for any malignancy

Endocrine therapy

  • At least 2 weeks since prior and no concurrent finasteride (Prosear® or Propecia®) or other androgen suppressor
  • No concurrent corticosteroids

Radiotherapy

  • Not specified

Surgery

  • Not specified

Other

  • At least 2 weeks since prior phenytoin or phenobarbital
  • At least 2 weeks since prior ketoconazole
  • No concurrent administration of any of the following:
  • Magnesium-containing antacids
  • Thiazide diuretics
  • Calcium supplements
  • Digoxin
  • Herbal supplements
  • Pharmacological doses of cholecalciferol (vitamin D) or its derivatives

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • Central Jersey Oncology Center, PA - East Brunswick

    East Brunswick, New Jersey, 08816

  • Carol G. Simon Cancer Center at Morristown Memorial Hospital

    Morristown, New Jersey, 07962

  • Cancer Institute of New Jersey at UMDNJ - Robert Wood Johnson Medical School

    New Brunswick, New Jersey, 08903

  • Saint Peter's University Hospital

    New Brunswick, New Jersey, 08903

  • Overlook Hospital

    Summit, New Jersey, 07901

Other trials in United States

About this study

Official title: A Randomized Phase II Trial Of Calcitriol In Patients With Prostatic Intraepithelial Neoplasia

RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of calcitriol may prevent prostate cancer. It is not yet known whether calcitriol is more effective than observation in preventing prostate cancer.

PURPOSE: This randomized phase II trial is studying how well calcitriol works in preventing prostate cancer in patients with prostatic intraepithelial neoplasia.

Read the detailed description

OBJECTIVES:

  • Determine the effects of calcitriol in patients with high-grade prostatic intraepithelial neoplasia.
  • Determine the toxicity of this drug in these patients.
  • Determine the effect of this drug on prostate specific antigen in these patients.

OUTLINE: This is a randomized, multicenter study. Patients are randomized to 1 of 2 arms.

  • Arm I: Patients receive oral calcitriol once daily for 8 weeks. Treatment repeats every 8 weeks for 2 courses in the absence of unacceptable toxicity.

After completion of course 2 (week 16), patients undergo biopsy. Patients continue to receive calcitriol for up to 3 additional weeks while the biopsy is being evaluated. Patients with persistent high-grade prostatic intraepithelial neoplasia (HGPIN) by biopsy receive 2 additional courses of calcitriol. Patients with no HGPIN or prostate cancer by biopsy are removed from the study.

  • Arm II: Patients undergo observation for 16 weeks. At week 16, patients undergo biopsy. Patients with persistent HGPIN by biopsy receive 2 courses of calcitriol as in arm I. Patients with no HGPIN or prostate cancer by biopsy are removed from the study.

After completion of study treatment, patients are followed annually for 2 years.

PROJECTED ACCRUAL: A total of 50 patients (25 per arm) will be accrued for this study.

Being tested
calcitriol, observation
Keywords
prostate cancer, high grade prostatic intraepithelial neoplasia
Medical subject headings
Precancerous Conditions, Prostatic Neoplasms

What participants receive

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

  • calcitriolDietary supplement

    Given orally

  • observationProcedure or surgery

    No initial intervention

Study groups in NCT00118066
Study groupRoleWhat they receive
Arm IExperimentalPatients receive oral calcitriol once daily for 8 weeks. Treatment repeats every 8 weeks for 2 courses. After completion of course 2 (week 16), patients undergo biopsy. Patients continue to receive calcitriol for up to 3 additional weeks while the biopsy is being evaluated. Patients with persistent high-grade prostatic intraepithelial neoplasia (HGPIN) by biopsy receive 2 additional courses of calcitriol.
Receives: Dietary Supplement: calcitriol
Arm IIOtherPatients undergo observation for 16 weeks. At week 16, patients undergo biopsy. Patients with persistent HGPIN by biopsy receive 2 courses of calcitriol as in arm I.
Receives: Dietary Supplement: calcitriol; Procedure: observation

What is being measured

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

  1. Presence of prostate intraepithelial neoplasia after 16 weeks

    Measured: 4 years

Timeline

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

  1. First posted11 Jul 2005 (estimated)
  2. Study startMay 2004
  3. Primary completionJun 2011
  4. Study completionAug 2011

Why it stopped: Slow accruaL, lack of scientific progress

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 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00118066
Sponsor's protocol ID
080404
Other IDs
P30CA072720, CDR0000433508, 0220044901, CINJ-NJ3803
Status last verified
May 2015
First submitted
8 Jul 2005
Last updated
27 May 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing calcitriol and observation in people with Precancerous/Nonmalignant Condition and Prostate Cancer, run by Rutgers, The State University of New Jersey at 5 sites 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?

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: stopped early, as of the sponsor's last update on 27 May 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

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?

The study was stopped early (reason given: Slow accruaL, lack of scientific progress). Results are not available in the source record.

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?

Presence of prostate intraepithelial neoplasia after 16 weeks (time frame: 4 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 27 May 2015.

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