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Prostate CancerPhase 2NCT00895310

Use of Low Dose Ketoconazole in Prostate Cancer That Does Not Respond to Hormone Therapy and Prior Chemotherapy

A Phase 2 study testing Ketoconazole and Hydrocortisone in people with Prostate Cancer, run by University of California, Davis at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to test the safety of ketoconazole and how well it works after chemotherapy has been used. Ketoconazole at lower doses has been used for fungal infections however has not yet been approved by the Food and Drug Administration for use in prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Ketoconazole and Hydrocortisone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
May 2009to May 2015
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Patients must have histologically or cytologically proven prostate cancer with a Gleason score available or interpretable.
  • Patients must have prostate cancer deemed to be hormone refractory, by progression of measurable or evaluable disease or rising PSA.
  • Patients must be >18 years old
  • Patients must have received at least one prior chemotherapy regimen >3 weeks prior to initiation of study and patients must have recovered from the side effects of the therapy
  • Patients must have an ECOG status of 0-3
  • Patients must have normal organ and marrow function, determined within 14 days of registration.
Show all 9Show fewer
  • Patients must have been surgically or medically castrated. If the method of castration was LHRH agonists (leuprolide or goserelin), then the patient must be willing to continue the use of LHRH agonists.
  • Patients must have a serum total testosterone level <50 ng/dl
  • If the patient has been treated with non-steroidal anti-androgens (flutamide, bicalutamide or nilutamide) or other hormonal treatment (megace or steroids), the patient must have stopped these agents at least 28 days prior to enrollment for flutamide, megace or steroids and at least 42 days prior to enrollment for bicalutamide or nilutamide; and the patients must have demonstrated progression of disease since the agents were suspended.

Who cannot join

  • Patients with any condition that impairs the ability to swallow medications orally
  • Patients who are unable to give informed consent
  • Patients who have received ketoconazole treatment for prostate cancer in the past
  • Patients with other active malignancies in the past 3 years except nonmelanoma skin cancer
  • Patients may not be receiving any other investigational agents
  • Patients with known hypersensitivity to ketoconazole
  • Patients may not be taking certain medications, including terbinafine, astemizole, triazolam, statins (except pravastatin and fluvastatin) and acid suppressive agents (antacids, H2 blockers, PPI) while on ketoconazole, and patients on these medications must agree to discontinue these medications and consider alternative therapies.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of California, Davis Cancer Center

    Sacramento, California, 95817

Other trials in United States

About this study

Official title: Assessing PSA Response in Low Dose Ketoconazole in Hormone Refractory Prostate Cancer Patients Who Have Failed at Least One Prior Systemic Chemotherapy Regimen

The purpose of this study is to test the safety of ketoconazole and how well it works after chemotherapy has been used. Ketoconazole at lower doses has been used for fungal infections however has not yet been approved by the Food and Drug Administration for use in prostate cancer. Ketoconazole has been used for many years at high doses for prostate cancer, and this study will be to look at use of lower dose ketoconazole after someone has received chemotherapy. Ketoconazole works by halting the production of steroids in your body, including testosterone, and is thought to work directly on prostate cancer cells in published lab studies.

Read the detailed description

The aim of the study is to research the response of low dose ketoconazole in hormone refractory prostate cancer (HRPC) patients who have already undergone chemotherapy as part of their prostate cancer treatment. The hypothesis of the study is that HRPC patients who have been previously treated with chemotherapy will demonstrate objective PSA response rates to low dose ketoconazole, comparable to historical response rates reported in chemotherapy-naïve patients. This is a single arm trial, with all participants given ketoconazole 200mg TID, along with hydrocortisone given at 20mg in the morning, 10mg at night daily. Each cycle will consist of 28 days. The subject's study participation will continue until subject experiences disease progression, unacceptable toxicities, withdraws consent from the study or dies.

Conditions
Prostate Cancer
Being tested
Ketoconazole, Hydrocortisone
Keywords
PSA, Ketoconazole, Prostate Cancer, Hormone Refractory, Chemotherapy Regimen
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • KetoconazoleDrug

    Also called Nizoral

    Ketoconazole is taken three times a day by mouth.

  • HydrocortisoneDrug

    Also called Cortef

    Hydrocortisone is taken by mouth 20 mg every morning and 10 mg every evening.

Study groups in NCT00895310
Study groupRoleWhat they receive
Ketoconazole and HydrocortisoneExperimentalKetoconazole 200mg PO TID + Hydrocortisone 20mg PO Qam, 10mg PO Qpm
Receives: Drug: Ketoconazole; Drug: Hydrocortisone

What is being measured

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

  1. Prostate Specific Antigen (PSA) Response (>50% Reduction From Baseline)

    Percentage of patients who achieved a clinically significant decline in Prostate Specific Antigen (PSA) after initiation of ketoconazole therapy, defined as a >=50% decrease in PSA.

    Measured: From date of enrollment, every Cycle (4 weeks), until disease progression, unacceptable toxicities, study withdrawal, or death from any cause, whichever came first, assessed up to 2 years

Secondary outcomes (3)
  1. PSA Response (>30% From Baseline)

    Measured: From date of enrollment, every Cycle (4 weeks), until disease progression, unacceptable toxicities, study withdrawal, or death from any cause, whichever came first, assessed up to 2 years

  2. Progression Free Survival

    Response Evaluation Criteria In Solid Tumors (RECIST) radiographic criteria for progression

    Measured: From date of enrollment, every Cycle (4 weeks), until disease progression, unacceptable toxicities, study withdrawal, or death from any cause, whichever came first, assessed up to 2 years

  3. Duration of Stable Disease

    Measured: From date of enrollment, every Cycle (4 weeks), until disease progression, unacceptable toxicities, study withdrawal, or death from any cause, whichever came first, assessed up to 2 years

Timeline

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

  1. First posted8 May 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionDec 2014
  4. Study completionMay 2015

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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00895310
Sponsor's protocol ID
200916901
Other IDs
UCDCC#218
Status last verified
Feb 2017
First submitted
6 May 2009
Last updated
30 Mar 2017
Data monitoring committee
Yes
Individual data sharing
Undecided

Publications

  • Lo EN, Beckett LA, Pan CX, Robles D, Suga JM, Sands JM, Lara PN Jr. Prospective evaluation of low-dose ketoconazole plus hydrocortisone in docetaxel pre-treated castration-resistant prostate cancer patients. Prostate Cancer Prostatic Dis. 2015 Jun;18(2):144-8. doi: 10.1038/pcan.2015.2. Epub 2015 Feb 10.

    PubMed 25667107

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Ketoconazole and Hydrocortisone in people with Prostate Cancer, run by University of California, Davis at 1 site 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?

The sponsor lists 9 inclusion and 7 exclusion criteria. 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: finished, as of the sponsor's last update on 30 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

Yes. Results are posted in the registry (first posted 15 Feb 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Prostate Specific Antigen (PSA) Response (>50% Reduction From Baseline) (time frame: From date of enrollment, every Cycle (4 weeks), until disease progression, unacceptable toxicities, study withdrawal, or death from any cause, whichever came first, assessed up to 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00895310, which also lists 1 linked publication.

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 30 Mar 2017.

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