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Prostate CancerPhase 2NCT04995978

Insulin Resistance and Androgen Deprivation Therapy

A Phase 2 study testing Pioglitazone 30 mg in people with Prostate Cancer and Insulin Resistance, run by St. Louis University at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Prostate cancer is the most common malignancy amongst men in United States. Androgen deprivation therapy (ADT) with long acting gonadotropin releasing hormone agonists is routinely used as adjuvant therapy in intermediate and high risk localized or locally advanced prostate cancer. Read more about this study

Who is it for?
Ages 18 to 85 years, men only
Conditions the study is for
Prostate Cancer, Insulin Resistance
What is being tested?
Pioglitazone 30 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
1 siteUnited States
Study dates
1 Dec 2021to 18 Jan 2023
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 to 85 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Prostate cancer, non-metastatic
  • Have been on ADT with long acting GnRH agonist continuously for last 3 months, AND planning to continue ADT for at least 6 months

Who cannot join

  • Used pioglitazone in last 6 months
  • Heart Failure NYHA Class 3 or 4
  • Known to have osteoporosis at this time.
  • history of bladder cancer
  • Hemoglobin <8 g/dl
  • eGFR <15 ml/min/1.73m2
  • liver enzymes (ALT or AST) >3 times the upper limit of normal

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Saint Louis Univeristy

    St Louis, Missouri, 63104

Other trials in United States

About this study

Official title: Insulin Resistance in Men With Prostate Cancer on Androgen Deprivation Therapy

Prostate cancer is the most common malignancy amongst men in United States. Androgen deprivation therapy (ADT) with long acting gonadotropin releasing hormone agonists is routinely used as adjuvant therapy in intermediate and high risk localized or locally advanced prostate cancer. Since ADT induces insulin resistance and diabetes, it is important that cellular and molecular effects of ADT are investigated to define precisely the mechanisms involved in the pathogenesis of insulin resistance. Pioglitazone, a known insulin sensitizer, may provide amelioration of insulin resistance in these patients.

Read the detailed description

Investigators plan to conduct a prospective, randomized, double-blind, placebo-controlled trial in 44 men with nonmetastatic prostate cancer who are receiving ADT with long acting GnRH agonist (study group). Study subjects will undergo insulin clamp, subcutaneous fat biopsy, muscle biopsy, have a blood sample taken and fibroscan performed prior to randomization of study drug. They will then be randomized to 30 mg pioglitazone or placebo tablet daily for 6 months. Blood samples will be drawn 2 and 4 months following the initiation of the study drug. The final study visit will be at 6 months. Subjects will undergo clamp, fat biopsy, muscle biopsy, blood sampling, fibroscan and will be discharged from the study.

Being tested
Pioglitazone 30 mg, placebo tablet
Medical subject headings
Prostatic Neoplasms, Insulin Resistance

What participants receive

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

  • Pioglitazone 30 mgDrug

    Subjects will self-administer a 30 mg pioglitazone oral tablet daily for 6 months.

    For patient taking a diabetic regimen of gemfibrozil, the dose will be 15 mg daily.

  • placebo tabletDrug

    Subjects will self-administer an oral placebo tablet containing cellulose daily for 6 months.

Study groups in NCT04995978
Study groupRoleWhat they receive
PioglitazoneExperimentalNot described
Receives: Drug: Pioglitazone 30 mg
placeboPlacebo comparatorNot described
Receives: Drug: placebo tablet

What is being measured

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

  1. insulin sensitivity

    The primary endpoint of the study is to detect a difference in insulin sensitivity as measured by whole body glucose uptake during clamps after treatment with pioglitazone as compared to placebo.

    Measured: 6 months

Secondary outcomes (1)
  1. Insulin signaling (Insulin receptor substrate expression in fat tissue)

    A secondary endpoint for the study will be comparison of the relative change from baseline in insulin signaling after pioglitazone or placebo.

    Measured: 6 months

Timeline

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

  1. First posted9 Aug 2021
  2. Study start1 Dec 2021
  3. Primary completion18 Jan 2023
  4. Study completion18 Jan 2023

Why it stopped: No participants were recruited and the study was deemed not feasible

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04995978
Sponsor's protocol ID
31991
Status last verified
Jun 2023
First submitted
2 Aug 2021
Last updated
23 Jun 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Pioglitazone 30 mg in people with Prostate Cancer and Insulin Resistance, run by St. Louis University 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 2 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: withdrawn, as of the sponsor's last update on 23 Jun 2023. 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. Some participants in this study may receive a placebo. 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 withdrawn before enrolling participants, so there are no results.

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?

insulin sensitivity (time frame: 6 months). 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 23 Jun 2023.

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