Fezolinetant for the Improvement of Vasomotor Symptoms in Breast Cancer Patients Taking Endocrine Therapy, VENT Trial

NCT ID: NCT06617455

Last Updated: 2025-05-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-31

Study Completion Date

2026-10-01

Brief Summary

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This phase II trial tests how well fezolinetant works in improving vasomotor symptoms (VMS) in breast cancer patients taking endocrine therapy (ET). Anti-hormone treatments are effective for lowering the risk of breast cancer but can cause bothersome VMS, such as hot flashes and night sweats. Fezolinetant inhibits the activity of the neurokinin type 3 receptor and has shown activity against VMS in postmenopausal women. Taking fezolinetant may work well at improving VMS in breast cancer patients taking ET.

Detailed Description

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Conditions

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Anatomic Stage I Breast Cancer AJCC v8 Anatomic Stage II Breast Cancer AJCC v8 Anatomic Stage III Breast Cancer AJCC v8 Breast Ductal Carcinoma In Situ Localized Breast Carcinoma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
All study drug will be blinded to the patients, the study investigators, and the study coordinators to ensure masking of the treatments. The statistician and the study investigators will remain blinded until the study database is locked. The only study personnel that will not be blinded are the research pharmacy staff in order to facilitate randomization codes and treatment delivery, and in case emergency unblinding is required.

Study Groups

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Arm I (fezolinetant, placebo)

Patients receive fezolinetant PO QD for 28 days in the absence of unacceptable toxicity. Patients then go through a washout period and take no study medication for the next 14 days. Following the washout, patients receive placebo PO QD for 28 days in the absence of unacceptable toxicity. Patients undergo collection of blood samples throughout the study.

Group Type EXPERIMENTAL

Biospecimen Collection

Intervention Type PROCEDURE

Undergo collection of blood samples

Fezolinetant

Intervention Type DRUG

Given PO

Placebo Administration

Intervention Type DRUG

Given PO

Quality-of-Life Assessment

Intervention Type OTHER

Ancillary studies

Questionnaire Administration

Intervention Type OTHER

Ancillary studies

Arm II (placebo, fezolinetant)

Patients receive placebo PO QD for 28 days in the absence of unacceptable toxicity. Patients then go through a washout period and take no study medication for the next 14 days. Following the washout, patients receive fezolinetant PO QD for 28 days in the absence of unacceptable toxicity. Patients undergo collection of blood samples throughout the study.

Group Type EXPERIMENTAL

Biospecimen Collection

Intervention Type PROCEDURE

Undergo collection of blood samples

Fezolinetant

Intervention Type DRUG

Given PO

Placebo Administration

Intervention Type DRUG

Given PO

Quality-of-Life Assessment

Intervention Type OTHER

Ancillary studies

Questionnaire Administration

Intervention Type OTHER

Ancillary studies

Interventions

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Biospecimen Collection

Undergo collection of blood samples

Intervention Type PROCEDURE

Fezolinetant

Given PO

Intervention Type DRUG

Placebo Administration

Given PO

Intervention Type DRUG

Quality-of-Life Assessment

Ancillary studies

Intervention Type OTHER

Questionnaire Administration

Ancillary studies

Intervention Type OTHER

Other Intervention Names

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Biological Sample Collection Biospecimen Collected Specimen Collection Quality of Life Assessment

Eligibility Criteria

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Inclusion Criteria

* Female subject aged ≥ 18 years
* Taking endocrine therapy (tamoxifen, anastrozole, exemestane, or letrozole) for adjuvant treatment of stage 1-3 breast cancer or for chemoprevention (breast ductal carcinoma in situ \[DCIS\] or high risk)
* Planning to take the same endocrine therapy for at least 10 weeks after study drug initiation
* Report 28 or more VMS episodes, at least some of which are severe or bothersome, during the 7-day screening period
* Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \< 2 x upper limit of normal (ULN) within 28 days prior to randomization
* Total bilirubin \< 2 x ULN within 28 days prior to randomization
* Completion of chemotherapy, if given. Concurrent use of gonadotropin releasing hormone agonist (GnRHa) therapy, anti-HER2 therapy, bisphosphonate therapy, poly adenosine diphosphate-ribose polymerase (PARP) inhibitor therapy, and abemaciclib therapy is permitted
* Patients receiving treatment with selective serotonin reuptake inhibitor (SSRIs), serotonin and norepinephrine reuptake inhibitor (SNRIs), gabapentinoids, clonidine, or oxybutynin must have been taking a stable dose for at least 30 days prior to enrollment if they plan to continue the drug during study participation, and willing to remain on the treatment for the duration of study participation. If they do not plan to take the medication during study participation, they should stop the medication at least 7 days before the start of the VMS screening period
* Patients taking over-the-counter supplements or herbal medications for treatment of VMS must stop the medication at least 7 days before the start of the VMS screening period
* Able to self-complete questionnaires in English
* Able to provide informed consent and willing to sign an approved consent form that conforms to federal and institutional guidelines
* For women of childbearing potential, participants must agree to use an effective contraceptive method during protocol therapy and for 3 months following completion of protocol therapy with details provided as a part of the consent process and must have a negative pregnancy test at screening. In addition to routine contraceptive methods, "effective contraception" also includes refraining from sexual activity that might result in pregnancy and surgery intended to prevent pregnancy (or with a side-effect of pregnancy prevention) including hysterectomy, bilateral oophorectomy, and bilateral tubal ligation/occlusion

Exclusion Criteria

* Metastatic breast cancer
* Prior treatment with fezolinetant
* Known severe renal disease (estimated glomerular filtration rate \[eGFR\] less than 30 mL/min/1.73 m\^2)
* Known cirrhosis
* Pregnant or breast feeding, or plan to become pregnant during the study period or within 3 months of completing study medication
* Concomitant use of CYP1A2 inhibitors, including but not limited to fluvoxamine, ciprofloxacin, cimetidine, citalopram, and ribociclib
* Concomitant use of systemic or transdermal estrogen products
* Known allergy or hypersensitivity to fezolinetant or any of the excipients in the medication
* Unable to take oral medications
* Any medical condition that would interfere with the absorption of study medication. Prior gastric bypass is permitted
* Concurrent medical disease that could confound or interfere with evaluation of VMS
* Patients with a prior or concurrent malignancy whose natural history or treatment, in the opinion of the treating investigator, has the potential to interfere with the safety or efficacy assessment of the investigational regimen
* Patients who are participating concurrently in another interventional study (actually receiving a study medication) or participated in an interventional study within 30 days prior to screening or received any investigational drug within 30 days or within 5 half-lives prior to screening, whichever is longer
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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The Breast Cancer Research Foundation

UNKNOWN

Sponsor Role collaborator

University of Michigan Rogel Cancer Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Norah L Henry

Role: PRINCIPAL_INVESTIGATOR

University of Michigan Rogel Cancer Center

Locations

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University of Michigan Rogel Cancer Center

Ann Arbor, Michigan, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Cancer AnswerLine

Role: CONTACT

1-800-865-1125

Facility Contacts

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Cancer AnswerLine

Role: primary

800-865-1125

Related Links

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Other Identifiers

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NCI-2024-06543

Identifier Type: REGISTRY

Identifier Source: secondary_id

HUM00256706

Identifier Type: OTHER

Identifier Source: secondary_id

UMCC 2024.059

Identifier Type: -

Identifier Source: org_study_id

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