Evaluating sleep quality in prostate and breast cancer patients undergoing hormonal treatment

SIESTA: A Pilot Observational Study to Investigate and Evaluate Sleep Quality in Cancer Patients Undergoing Hormonal Therapeutic Approaches: 1) Localized, Locally Advanced or Metastatic Prostate Cancer Receiving Treatment Including Androgen Deprivation Therapy 2) Full-resected Early (Stage I-III) Breast Cancer, Ductal Carcinoma in Situ or Lobular Carcinoma in Situ, Without Evidence of Residual Disease; Proven Postmenopausal Status

Observational Oncology Institute of Southern Switzerland · NCT04543799

This study is trying to see how hormonal treatments affect sleep quality in people with prostate and breast cancer.

Quick facts

Study typeObservational
Enrollment60 (estimated)
Ages18 Years and up
SexAll
SponsorOncology Institute of Southern Switzerland Academic / other
Drugs / interventionschemotherapy
Locations1 site (Bellinzona)
Trial IDNCT04543799 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess sleep quality in patients with localized, locally advanced, or metastatic hormone-sensitive prostate cancer and those with fully resected early-stage breast cancer. It will utilize polysomnography, questionnaires, actigraphy, and salivary melatonin samples to gather data on sleep patterns before and during hormonal therapies. Measurements will be taken at baseline, 6 months, and 12 months to compare sleep quality across different treatment groups. The study seeks to identify potential negative impacts of hormonal therapies on sleep and provide a foundation for future interventional trials.

Who should consider this trial

Good fit: Ideal candidates include adult males over 18 with hormone-sensitive prostate cancer scheduled for androgen deprivation therapy and patients with fully resected early-stage breast cancer.

Not a fit: Patients with small cell prostate cancer or those not scheduled for hormonal therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management of sleep quality in cancer patients undergoing hormonal treatments.

How similar studies have performed: While this approach is novel in its methodology, previous studies have indicated that hormonal treatments can affect sleep quality, suggesting potential relevance.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria for prostate cancer patients:

* Written infor med consent according to International Conference on Harmonisation (ICH)/Good Clinical Practice (GCP) regulations before registration and prior to any trial specific procedures
* Histologically proven adenocarcinoma of the prostate
* Eastern Cooperative Oncology Group performance status 0-2
* Adult male patient \> 18 years of age, no upper age limit
* Localized prostate cancer, locally advanced hormone-sensitive prostate cancer (HSPC) or metastatic hormone-sensitive prostate cancer (mHSPC)
* ADT recipients are required to be scheduled to start ADT as standard of care (SOC) for metastatic or locally advanced prostate cancer
* Scheduled to receive ADT treatment as SOC for \> 6 months in combination with radiotherapy or oral AR-targeted systemic treatment as prescribed by the treating physician or radiotherapy alone

Exclusion Criteria for prostate cancer patients:

* Histology with predominant small cell prostate cancer
* Any previous treatment with ADT or oral AR-targeted agent (exception for short course anti-androgens - disease flare)
* Have not received systemic treatment for any other cancer within the last 12 months
* Active secondary malignancy that requires systemic therapy
* Any clear contraindications present against treatment with ADT
* Presence of sleep apnea syndrome, Apnea Hypopnea Index (AHI) \>15 at baseline
* Body mass index (BMI) \> 35 at baseline
* Severe respiratory disorders (asthma, Chronic obstructive pulmonary disease) at baseline
* Severe cardiovascular disease or severe cardiovascular event \< 6 months
* History of stroke or other neurologic chronic illnesses \< 6 months
* Have demonstrated impaired mental status
* History of brain tumours, presence of brain metastases or previous cranial irradiation
* Night shift workers
* Excessive lifestyle: massive coffee intake at night, regular excessive cigarette and alcohol consumption in the evening
* Unhealthy sleep hygiene
* Nocturia (the urgent need to urinate more than 2 times during the main sleep period at night) at baseline
* Present diagnosis of depression or psychiatric illness pharmacologically treated
* Diagnosis of insomnia and chronic intake of hypnotic medication at baseline
* Chronic intake of medications that are known to induce sleep disturbance (antihistamines of first generation, cortisone intake \> 25 mg/day)
* Any diagnosed condition that causes known sleep disturbance

Inclusion criteria for breast cancer patients

* Written informed consent according to International Conference on Harmonisation (ICH)/Good Clinical Practice (GCP) regulations before registration and prior to any trial specific procedures
* Women with full-resected early (stage I-III) epithelial BC, ductal carcinoma in situ or lobular carcinoma in situ, without evidence of residual disease
* Eastern Cooperative Oncology Group performance status 0-2
* Adult female patient ≥ 18 years of age, no upper age limit
* Proven postmenopausal status (defined by absence of menstruation for at least 6 months and/or level of estradiol \<40 pg/ml, or bilateral oophorectomy or ovarian irradiation for suppression of ovarian function)

Exclusion criteria for breast cancer patients

* Non-epithelial BC or BC with mixed epithelial and non-epithelial histology
* Previous chemotherapy at any time, in treatment with ET at not standard dosage
* Have received systemic treatment for any other cancer within the last 12 months
* Active secondary malignancy that requires systemic therapy
* Presence of sleep apnea syndrome, Apnea Hypopnea Index (AHI) \>15 at baseline
* Body mass index (BMI) \> 35 at baseline
* Severe respiratory disorders (asthma, Chronic obstructive pulmonary disease) at baseline
* Severe cardiovascular disease or severe cardiovascular event \< 6 months
* History of stroke or other neurologic chronic illnesses \< 6 months
* Have demonstrated impaired mental status
* History of brain tumours, presence of brain metastases or previous cranial irradiation
* Night shift workers
* Excessive lifestyle: massive coffee intake at night, regular excessive cigarette and alcohol consumption in the evening
* Unhealthy sleep hygiene
* Nocturia (the urgent need to urinate more than 2 times during the main sleep period at night) at baseline
* Present diagnosis of depression or psychiatric illness pharmacologically treated
* Diagnosis of insomnia and chronic intake of hypnotic medication at baseline
* Chronic intake of medications that are known to induce sleep disturbance (antihistamines of first generation, cortisone intake \> 25 mg/day) or any diagnosed condition that causes known sleep disturbance

Where this trial is running

Bellinzona

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Prostate CancerBreast Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.