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Early-stage Breast CancerPhase 1/2NCT07596212

BRE-06: Study to Increase Tolerance to Aromatase Inhibitors for Patients With Early-Stage Hormone Receptor Positive Breast Cancer Who Developed Hypoactive Sexual Desire Disorder

A Phase 1/2 study testing Aromatase Inhibitors, Bupropion and GnRH agonist in people with Early-stage Breast Cancer and Hypoactive Sexual Desire Disorder, run by University of Illinois at Chicago at 1 site in United States.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
Search all trials

Trial summary

This study is open to women who have early-stage breast cancer and are on aromatase inhibitor (AI) therapy, and who have hypoactive sexual desire disorder (HSDD). HSDD is a persistent lack of physical desire for sex and a lack of sexual activity, or even sexual thoughts or fantasies, that causes you distress. Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Aromatase Inhibitors, Bupropion and GnRH agonist
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteUnited States
Study dates
Sep 2026to Sep 2031
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

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

  • Females 18 or older
  • Histologically-proven, resected, hormone receptor-positive (defined as estrogen receptor ≥1% and/or progesterone receptor (PgR)≥1% by immunohistochemistry at local institutions) early invasive breast cancer, stage I-III per American Joint Committee of Cancer (AJCC) 8th edition, regardless of Human Epidermal growth factor Receptor 2 (HER2) status
  • Completion of the following planned cancer treatments prior to registration:
  • Surgical resection of breast and nodal surgery; (NOTE: Reconstructive surgery does not have to be completed)
  • Adjuvant radiation therapy, if needed
  • Neoadjuvant and/or adjuvant chemotherapy if needed
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  • Treatment with anti-HER2 agents is allowed
  • Eastern Cooperative Oncology Group (ECOG) performance status 0, 1, or 2.
  • Ability to swallow oral medication.
  • Provide written informed consent and fill out questionnaires
  • Willing to return to the enrolling institution for follow-up
  • Women of childbearing potential must not be pregnant or breastfeeding. A negative serum or urine pregnancy test is required per institutional practice guidelines. Women of childbearing potential will be required to use effective contraception from the time of consent until 30 days after the last dose of bupropion. Acceptable methods include hormonal contraception, intrauterine device, barrier methods with spermicide, or sterilization

Who cannot join

  • Previous bilateral oophorectomy or ovarian irradiation; pregnant or lactating at the time of randomization or desiring pregnancy within 5 years.
  • History of psychiatric illnesses on active treatment
  • History or active suicidal thoughts or behaviors
  • Currently taking anti-depressants, anti-anxiety, or anti-psychotic medications. History of seizure disorder
  • History of bulimia or anorexia nervosa
  • Inhibitors or inducers of CYP2B6
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  • Drugs metabolized by CYP2D6
  • Use of monoamine oxidase inhibitors (MAOI)
  • History of hypertension, regardless of control status.
  • History of angle closure glaucoma
  • Subjects taking levodopa, amantadine, methylene blue, and linezolid
  • Those with a hypersensitivity to bupropion, anastrozole, letrozole, exemestane, goserelin, or leuprolide. Currently receiving any of the following cancer-directed therapies:
  • Radiation therapy
  • Systemic therapy such as chemotherapy (standard or investigational)
  • Anti-HER2 agents are allowed

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Oana Danciu, MD contact

(312) 355-1625

ocdanciu@uic.edu

Michelle Karan contact

(224) 563-7137

makaran2@uic.edu

United States1 site
  • University of Illinois at Chicago

    Chicago, Illinois, 60612

    Oana Danciu, MD, (312) 355-1625, ocdanciu@uic.edu

    Michelle Karan, (224) 563-7137, makaran2@uic.edu

Other trials in United States

About this study

This study is open to women who have early-stage breast cancer and are on aromatase inhibitor (AI) therapy, and who have hypoactive sexual desire disorder (HSDD). HSDD is a persistent lack of physical desire for sex and a lack of sexual activity, or even sexual thoughts or fantasies, that causes you distress. The researchers want to determine if sexual functioning, as measured by responses on a sexual functioning questionnaire, is improved by adding Bupropion Extended Release (XL) to the AI treatment regimen. Bupropion XL is an FDA-approved medication for the treatment of major depressive disorder, seasonal affective disorder, and nicotine dependence. It has been studied in HSDD in pre- and post-menopausal healthy women, and has been demonstrated to be effective, but it has not been thoroughly studied in women with early-stage breast cancer on AI therapy.

Read the detailed description

Patients diagnosed with HSDD (defined as Female Sexual Function Index, or FSFI, score ≤ 26) will discontinue their current AI therapy and will be randomized to treatment with a different AI (non-steroidal AI to steroidal AI, or vice versa) plus bupropion 150 mg orally twice a day versus single-agent AI. All patients diagnosed with HSDD will be referred to counseling services and pelvic floor therapy. In addition, patients will be offered access to the Rosy App. FSFI will be administered at months 1, 3, 6, and during the year 3 visit.

Being tested
Aromatase Inhibitors, Bupropion, GnRH agonist
Medical subject headings
Breast Neoplasms, Sexual Dysfunctions, Psychological

What participants receive

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

  • Aromatase InhibitorsDrug

    Also called Letrozole, Anastrozole, Exemestane

    An aromatase inhibitor will be given at a duration, frequency, and dose per standard of care.

  • BupropionDrug

    Also called Wellbutrin, Zyban

    Bupropion will be taken twice a day by mouth at 150 mg with the option to change to 300 mg daily for those with ongoing HSDD symptoms

  • GnRH agonistDrug

    Also called Leuprolide, Goserelin

    A GnRH agonist will be administered for a duration and dose per standard of care as part of ovarian suppression therapy for those who are pre-menopausal. These will be administered subcutaneously every 28 days.

Study groups in NCT07596212
Study groupRoleWhat they receive
Single Agent Aromatase Inhibitor and Gonadotropin-Releasing Hormone (GnRH) AgonistActive comparatorParticipants will receive aromatase inhibitor as part of standard of care for early stage breast cancer. The duration of AI therapy will be at the discretion of the investigator. Patients who are diagnosed with Hypoactive Sexual Desire Disorder at baseline will discontinue their current aromatase inhibitor treatment and switch to a different aromatase inhibitor treatment (i.e., non-steroidal AI to steroidal AI, or vice versa). Those who are pre-menopausal will also be treated with ovarian suppression therapy (in the form of a GnRH agonist) per standard of care. They will be treated by subcutaneous injection every 28 days and the type, duration, and dose of drug will be per the treating physician's discretion. Those who have ongoing Hypoactive Sexual Desire Disorder symptoms have the option to crossover to the bupropion arm.
Receives: Drug: Aromatase Inhibitors; Drug: GnRH agonist
Single Agent Aromatase InhibitorActive comparatorParticipants will receive aromatase inhibitor as part of standard of care for early stage breast cancer. The duration of AI therapy will be at the discretion of the investigator. Patients who are diagnosed with Hypoactive Sexual Desire Disorder at baseline will discontinue their current aromatase inhibitor treatment and switch to a different aromatase inhibitor treatment (i.e., non-steroidal AI to steroidal AI, or vice versa). Those who have ongoing Hypoactive Sexual Desire Disorder symptoms have the option to crossover to the bupropion arm.
Receives: Drug: Aromatase Inhibitors
Single Agent Aromatase Inhibitor, Gonadotropin-Releasing Hormone (GnRH) Agonist, and BupropionExperimentalParticipants will receive aromatase inhibitor as part of standard of care for early stage breast cancer plus bupropion 150 mg orally twice daily. The duration of AI therapy will be at the discretion of the investigator. Patients who are diagnosed with Hypoactive Sexual Desire Disorder at baseline will discontinue their current aromatase inhibitor treatment and switch to a different aromatase inhibitor treatment (i.e., non-steroidal AI to steroidal AI, or vice versa). Patients with Hypoactive Sexual Desire Disorder will also have the option to change their dose to 300 mg orally once a day. Those who are pre-menopausal will also be treated with ovarian suppression therapy (in the form of a GnRH agonist) per standard of care. They will be treated by subcutaneous injection every 28 days and the type, duration, and dose of drug will be per the treating physician's discretion.
Receives: Drug: Aromatase Inhibitors; Drug: Bupropion; Drug: GnRH agonist
Single Agent Aromatase Inhibitor and BupropionExperimentalParticipants will receive aromatase inhibitor as part of standard of care for early stage breast cancer plus bupropion 150 mg orally twice daily. The duration of AI therapy will be at the discretion of the investigator. Patients who are diagnosed with Hypoactive Sexual Desire Disorder at baseline will discontinue their current aromatase inhibitor treatment and switch to a different aromatase inhibitor treatment (i.e., non-steroidal AI to steroidal AI, or vice versa). Patients with Hypoactive Sexual Desire Disorder will also have the option to change their dose to 300 mg orally once a day.
Receives: Drug: Aromatase Inhibitors; Drug: Bupropion

What is being measured

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

  1. Tolerance of study drugs in patients with early stage breast cancer and Hypoactive Sexual Desire Disorder

    To compare the tolerance of aromatase inhibitor (+/- ovarian suppression therapy) in comparison to aromatase inhibitor (+/- ovarian suppression therapy) plus bupropion. This is assessed by the proportion of patients no longer meeting HSDD criteria as reflected by FSFI > 26 at three months post-randomization.

    Measured: Until 3 months post-study enrollment

Secondary outcomes (4)
  1. Disease free-survival in patients with early stage breast cancer and Hypoactive Sexual Desire Disorder

    To compare the disease free survival rate of patients taking aromatase inhibitor (+/- ovarian suppression therapy) to those taking aromatase inhibitor therapy (+/- ovarian suppression therapy) plus bupropion. This is assessed by the time since treatment end to the date of disease progression, death, or least contact, whichever comes first

    Measured: Until 3 years post-study enrollment

  2. Overall survival in patients with early stage breast cancer and Hypoactive Sexual Desire Disorder

    To compare the overall survival rate of patients taking aromatase inhibitor (+/- ovarian suppression therapy) to those taking aromatase inhibitor therapy (+/- ovarian suppression therapy) plus bupropion. This is defined as the time of treatment randomization to death or last contact in study participants.

    Measured: Until 3 years post-study enrollment

  3. Safety and tolerability of study drugs in patients with early stage breast cancer and Hypoactive Sexual Desire Disorder

    To determine the safety and tolerability of aromatase inhibitor (+/- ovarian suppression therapy) versus aromatase inhibitor (+/- ovarian suppression therapy) and bupropion as defined by the number of adverse events using NCI Common Terminology Criteria for Adverse Events (CTCAE) version 5.

    Measured: Until 6 months post-study enrollment

  4. Medication adherence of study drugs in patients with early stage breast cancer and Hypoactive Sexual Desire Disorder

    To determine the rate of medication adherence for patients taking aromatase inhibitor (+/- ovarian suppression therapy) versus aromatase inhibitor (+/- ovarian suppression therapy) and bupropion. This is defined as the number of medication diary entries and physician queries to treatment.

    Measured: Until 3 years post-treatment start

Timeline

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

  1. First posted19 May 2026
  2. Study startSep 2026 (estimated)
  3. Primary completionSep 2028 (estimated)
  4. Study completionSep 2031 (estimated)

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07596212
Sponsor's protocol ID
2025-1138
Status last verified
Aug 2026
First submitted
13 May 2026
Last updated
24 Aug 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Aromatase Inhibitors, Bupropion and GnRH agonist in people with Early-stage Breast Cancer and Hypoactive Sexual Desire Disorder, run by University of Illinois at Chicago 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 15 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: opening soon, as of the sponsor's last update on 24 Aug 2026. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Oana Danciu, MD ((312) 355-1625, ocdanciu@uic.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Tolerance of study drugs in patients with early stage breast cancer and Hypoactive Sexual Desire Disorder (time frame: Until 3 months post-study enrollment). 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 24 Aug 2026; AzTrials last refreshed its copy on 26 Oct 2026.

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