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Breast CancerPhase 2NCT00379197

Phase II of Naltrexone in Hormone-Refractory Metastatic Breast Cancer

A Phase 2 study testing naltrexone and PET scan in people with Breast Cancer, run by Masonic Cancer Center, University of Minnesota at 1 site 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: Estrogen can cause the growth of breast cancer cells. Naltrexone may fight breast cancer by blocking the use of estrogen by the tumor cells. Naltrexone may also stop the growth of breast cancer by impairing blood flow to the tumor. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer
What is being tested?
naltrexone and PET scan
Could I receive a placebo?
No, everyone receives an active treatment
How many people
13 participants
Where
1 siteUnited States
Study dates
Jul 2006to May 2013
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
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Metastatic, hormone-receptor positive breast cancer
  • Disease that has progressed despite previous systemic hormonal therapy. Hormone therapy must be terminated at least 2 weeks prior to study enrollment.
  • Prior chemotherapy, immunotherapy, or biological therapy is allowed if at least 3 weeks since last treatment. Patient must recover from the acute toxic effects of the treatment prior to study enrollment.
  • Measurable disease as defined by solid tumor response (RECIST) criteria or non-measurable bone disease that is Positron-emission tomography (PET) avid
  • Karnofsky performance status >70%
  • Female, age 18 years or older
Show all 12Show fewer
  • Adequate organ function within 14 days of study enrollment including the following:
  • Adequate bone marrow reserve: absolute neutrophil (segmented and bands) count (ANC) ≥ 1.5 x 10^9/L, platelets >75 x 10^9/L, and hemoglobin > 8 g/dL
  • Hepatic: bilirubin ≤ 2 times the upper limit of normal (× ULN), aspartate transaminase (AST) and alanine transaminase (ALT) ≤ 2 × ULN. (AST and ALT ≤ 5 × ULN is acceptable if liver has tumor involvement)
  • Renal: creatinine ≤ 2 times the upper limit of normal
  • Women of childbearing potential are required to use an effective method of contraception (ie, a hormonal contraceptive, intrauterine device, diaphragm with spermicide, condom with spermicide, or abstinence) during the study and for 3 months after the last dose of study drug.
  • Voluntary written informed consent before performance of any study-related procedure not part of normal medical care, with the understanding that consent may be withdrawn by the subject at any time without prejudice to future medical care.

Who cannot join

  • Brain metastases unless stable for 1 month or more following radiation therapy.
  • Pregnant or lactating women. PET-CT is not approved during pregnancy. A negative urine or serum pregnancy test is required for all females of child bearing potential within 7 days prior to study entry. Pregnancy testing is not required for post-menopausal or surgically sterilized women.
  • Use of any short-acting or long-acting opioid medication (including morphine, meperidine, oxycodone, hydromorphone, hydrocodone, fentanyl, tramadol) within 10 days prior to study enrollment
  • Pain uncontrolled with the use of non-narcotic drugs (acetaminophen or non-steroidal medications)
  • History of sensitivity to naltrexone
  • Acute hepatitis or liver failure
  • Immunosuppressive therapy for patients with autoimmune diseases, organ transplant, or other indications

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Masonic Cancer Center, University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: Phase II Study of Naltrexone for the Treatment of Hormone-Refractory, Metastatic Breast Cancer

RATIONALE: Estrogen can cause the growth of breast cancer cells. Naltrexone may fight breast cancer by blocking the use of estrogen by the tumor cells. Naltrexone may also stop the growth of breast cancer by impairing blood flow to the tumor.

PURPOSE: This phase II trial is studying how well naltrexone works in treating women with metastatic breast cancer that is no longer responsive to previous hormone therapy.

Read the detailed description

OBJECTIVES:

Primary

  • Determine the efficacy of naltrexone in women with hormone-refractory, metastatic breast cancer as measured by serial fludeoxyglucose F 18 positron emission tomography-CT scans.

Secondary

  • Determine the safety of naltrexone in these patients.
  • Determine the median time to event (first time when maximum specific uptake values is higher than that at baseline) within 1 year of study entry.

OUTLINE: This is an open-label study.

Patients receive oral naltrexone once daily for 8 weeks in the absence of disease progression or unacceptable toxicity. After 8 weeks, patients may continue naltrexone off study at the discretion of the physician.

Patients undergo fludeoxyglucose F 18 positron emission tomography-CT scans at baseline, week 4, week 8, and periodically thereafter.

After completion of study treatment, patients are followed for up to 1 year.

PROJECTED ACCRUAL: A total of 35 patients will be accrued for this study.

Conditions
Breast Cancer
Being tested
naltrexone, PET scan
Keywords
stage IV breast cancer, estrogen receptor positive, recurrent breast cancer, hormone-refractory, metastatic breast cancer
Medical subject headings
Breast Neoplasms

What participants receive

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

  • naltrexoneDrug

    Also called REVIA

    Naltrexone 50 mg will be orally taken once daily for 28 day (cycle 1), and continues once daily for another 28 days (cycle 2) without interval.

  • PET scanProcedure or surgery

    Also called Positron-emission tomography scan

    Patients will receive PET scan approximately one hour after being injected with 2-Deoxy-2-[18F]fluoro-D-Glucose (FDG). PET scans will be performed after the completion of cycle 1 and cycle 2 and during the 1 year follow-up.

Study groups in NCT00379197
Study groupRoleWhat they receive
NaltrexoneExperimentalNaltrexone 50 mg will be taken orally once a day every day of a 28 day treatment course (cycle 1) and continue for another identical 28 day treatment (cycle 2) . PET scan will be performed after cycle 1 and cycle 2 complete.
Receives: Drug: naltrexone; Procedure: PET scan

What is being measured

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

  1. Disease Response

    A response is the number of participants whose tumor demonstrated a decrease in FDG uptake (SUV) by 50% or greater in at least one of the metastatic sites as measured by PET imaging at the end of 4 weeks of treatment compared to baseline.

    Measured: Week 4

Secondary outcomes (1)
  1. Median Time to Event

    First time when maximum SUV is higher than that at baseline within 1 year of study entry.

    Measured: From Baseline to 1 Year

Timeline

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

  1. First posted21 Sep 2006 (estimated)
  2. Study startJul 2006
  3. Primary completionMay 2013
  4. Study completionMay 2013

Why it stopped: slow accrual

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
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00379197
Sponsor's protocol ID
2006LS016
Other IDs
UMN-0604M85308
Status last verified
Dec 2017
First submitted
19 Sep 2006
Last updated
28 Dec 2017
Data monitoring committee
Yes

Publications

  • Vijayakumar J, Haddad T, Gupta K, Sauers J, Yee D. An open label phase II study of safety and clinical activity of naltrexone for treatment of hormone refractory metastatic breast cancer. Invest New Drugs. 2023 Feb;41(1):70-75. doi: 10.1007/s10637-022-01317-4. Epub 2022 Nov 28.

    PubMed 36441436

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing naltrexone and PET scan in people with Breast Cancer, run by Masonic Cancer Center, University of Minnesota 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 12 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: stopped early, as of the sponsor's last update on 28 Dec 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 19 May 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?

Disease Response (time frame: Week 4). 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 NCT00379197, 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 28 Dec 2017.

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