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Sleep quality in people with prostate or breast cancer on hormone treatment

Measures sleep in people with prostate cancer or postmenopausal early breast cancer.

Key facts

Who runs it
Oncology Institute of Southern Switzerland
Where
Bellinzona, SwitzerlandSee the site
Trial code
Registry title
Evaluation of Sleep Quality in Prostate Cancer Patients Undergoing Treatment With Hormonal Therapeutic Approaches and in Patients With Full-resected Early Breast Cancer
Status
Recruiting
People taking part
60 people, planned
Started
24 Sept 2020
Expected to end
31 Dec 2026
Type of study
Observational, 4 groups
Treatments tested
  • polysomnography, actigraphy, questionnaires
Record updated
18 November 2025

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults with prostate cancer who are about to start hormone therapy, and women after menopause with early breast cancer that was fully removed. It studies how well they sleep.

Age
18 years or older, no upper age limit
Sex
Men for the prostate cancer group; women for the breast cancer group
Disease stage
Prostate cancer: localized, locally advanced or metastatic hormone-sensitive, with adenocarcinoma. Breast cancer: fully removed early (stage I-III) epithelial breast cancer, ductal carcinoma in situ or lobular carcinoma in situ, with no sign of remaining disease.
Earlier treatment
Prostate cancer: no earlier ADT or oral AR-targeted treatment (short-course anti-androgens for disease flare are an exception), and ADT must be planned as standard care for more than 6 months. Breast cancer: no earlier chemotherapy. Both groups: no treatment for any other cancer in the last 12 months.
Biomarker or test result
Breast cancer group: proven postmenopausal status (no menstruation for at least 6 months and/or estradiol below 40 pg/ml, or both ovaries removed or ovarian irradiation).

Main reasons for not taking part

  • Sleep apnea (AHI above 15) or BMI above 35
  • Severe lung disease, severe heart disease or a recent severe heart event
  • Stroke or other long-term brain illness in the last 6 months, brain tumour or earlier head irradiation
  • Night shift work, heavy coffee, cigarette or alcohol use, or poor sleep habits
  • Depression or mental illness treated with medicine, insomnia with regular sleeping pills, or another known sleep problem

The registry criteria, word for word

Show all 50 criteriaShow less

Who can take part

  • 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
  • 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)

Who cannot take part

  • 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
  • Any clear contraindications present against treatment with ADT
  • History of brain tumours, presence of brain metastases or previous cranial irradiation
  • 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)
  • 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
  • History of brain tumours, presence of brain metastases or previous cranial irradiation
  • Diagnosis of insomnia and chronic intake of hypnotic medication at baseline
  • Histology with predominant small cell prostate cancer
  • Active secondary malignancy that requires systemic therapy
  • Presence of sleep apnea syndrome, Apnea Hypopnea Index (AHI) >15 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
  • Present diagnosis of depression or psychiatric illness pharmacologically treated
  • Any diagnosed condition that causes known sleep disturbance
  • Active secondary malignancy that requires systemic therapy
  • Presence of sleep apnea syndrome, Apnea Hypopnea Index (AHI) >15 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
  • Present diagnosis of depression or psychiatric illness pharmacologically treated
  • 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
  • Body mass index (BMI) > 35 at baseline
  • Have demonstrated impaired mental status
  • 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
  • Non-epithelial BC or BC with mixed epithelial and non-epithelial histology
  • Body mass index (BMI) > 35 at baseline
  • Have demonstrated impaired mental status
  • 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

Where in Switzerland

  • IOSIBellinzona, SwitzerlandContact: Ursula VoglTaking people

About the trial

What the trial wants to find out

This study will use polysomnography, alongside other methodologies such as questionnaires, actigraphic measurements and salivary melatonin samples used in previous studies to investigate sleep quality in patients with i) localized, locally advanced or metastatic hormone sensitive prostate cancer or ii) with full-resected early (stage I-III) epithelial breast cancer. The measurements will be taken before androgen deprivation therapy (ADT - for prostate cancer patients) or endocrine therapy (for breast cancer patients) is initiated, at 6 months and some measures again at 12 months.The groups, defined by cancer type and whether or not treatment includes ADT / endocrine therapy, will be compared to see if there are differences in the prevalence of the lowered sleep quality in the groups.

The 4 groups in the trial

  • A1

    Group A1 consists of patients with prostate cancer receiving ADT as part of their standard care for either locally advanced or metastatic disease. Group A1 consists of a combination of two groups; B1, metastatic patients receiving ADT both with and without an oral AR targeted agent, and not receiving radiotherapy and B2, locally advanced patients receiving ADT alongside radiotherapy

    Treatment: polysomnography, actigraphy, questionnaires

  • A2

    patients with localised prostate cancer receiving radiotherapy only

    Treatment: polysomnography, actigraphy, questionnaires

  • YET

    Breast cancer survivors receiving endocrine therapy

    Treatment: polysomnography, actigraphy, questionnaires

  • NET

    Breast cancer survivors not receiving endocrine therapy

    Treatment: polysomnography, actigraphy, questionnaires

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
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
Plain-language title
Sleep quality in people with prostate or breast cancer on hormone treatmentGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Record updated
18 November 2025