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RecruitingNCT07557342ONCOSEXUpdated Apr 29, 2026

Assessment of Sexual Well-being in Patients With Gynecologic Cancer and Their Partners: the ONCOSEX Study

An observational study in Sexual Wellness and Gynecologic Cancers, sponsored by Casa di Cura Dott. Pederzoli. Recruiting at 6 sites in Italy. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-04-29.

Sponsored by Casa di Cura Dott. Pederzoli · Observational

Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
200
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Study type and design This is an observational, exploratory, prospective, longitudinal (cohort), multicenter, non-profit study. Its purpose is to observe changes in sexual function over time without modifying standard clinical care pathways.

Background and rationale Sexual dysfunctions and the psychological impact of gynecological cancers are often underestimated in clinical practice, despite the World Health Organization recognizing sexual health as a fundamental right. Cultural, personal, and educational barriers frequently hinder an open and systematic discussion of sexual health.

Available literature highlights a significant deterioration in sexual quality of life and couple relationships among these patients; however, clear guidance on validated assessment tools and structured sexual counseling pathways is still lacking.

Study objectives

Primary objective: to evaluate whether and how sexual function questionnaire scores in patients and their partners change over time at different assessment time points.

Secondary objective: to identify the proportion of patients and partners who would perceive sexual counseling as useful, as well as the preferred timing for such support.

Endpoints

Primary endpoint: variation in Female Sexual Function Index (FSFI) scores in female patients and International Index of Erectile Function (IIEF-15) scores in male partners between assessment time points (T0-T1, T1-T2, T0-T2).

Secondary endpoint: perceived usefulness of sexual counseling support and preferred timing, based on questionnaire responses.

Procedures and assessment timeline Patients are enrolled at the time of diagnosis communication (T0). The same questionnaire is administered again six months after the start of treatment (T1) and twelve months after completion of therapy or surgery (T2). Participation requires written informed consent, and all data are collected in a pseudo-anonymized format. Partners are enrolled and assessed at the same time points.

Assessment tools

Patients: the validated Female Sexual Function Index (FSFI) questionnaire, plus an additional structured section exploring sexual experience, satisfaction, and difficulties.

Partners: the IIEF-15 questionnaire for male partners; for female partners, the same instruments used for patients are administered.

Collected variables Sociodemographic and clinical data, lifestyle habits, sleep quality, marital status, parity, ongoing or previous therapies, and FSFI and IIEF-15 questionnaire scores.

Sample size A total of 200 patients and 200 corresponding partners are expected to be enrolled.

Statistical analysis Data will be analyzed descriptively and longitudinally across the three time points. The primary analysis will use linear mixed-effects models for repeated measures, including random effects for subjects and fixed effects for time and relevant clinical covariates. Predefined subgroup analyses are planned. Statistical significance is set at p \< 0.05.

02

Conditions studied

  • Sexual Wellness
  • Gynecologic Cancers

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Keywords

  • gynecologic cancers
  • sexuality
  • partner
  • cancer survivors
03

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All patients diagnosed with gynecological cancer will be enrolled, regardless of the type of treatment proposed (surgery, concurrent chemoradiotherapy alone, neoadjuvant chemotherapy), provided they meet the inclusion criteria, do not meet any exclusion criteria (see above), and give their informed and unconditional consent to participate in the study by signing the appropriate forms. A necessary condition is that the patient's partner also provides informed and unconditional consent to participate in the study by signing the appropriate forms and agrees to complete the questionnaires within the same timeframe as the patient.

Inclusion criteria

  • Patients diagnosed with gynecological cancer: malignant ovarian tumor, ovarian tumor of uncertain behavior, cervical cancer, endometrial cancer, uterine sarcoma, vulvar cancer, vaginal cancer
  • Sexually active
  • Women who have a partner
  • Aged between 18 and 75
  • Women of any sexual orientation
  • Understanding and knowledge of the Italian language
  • Signing of the informed consent form
  • Signing of the informed consent form by the partner

Exclusion criteria

Exclusion Criteria:

  • Benign gynecological conditions
  • Age \< 18 or > 75
  • Virgins or women who are no longer sexually active
  • Women with psychiatric or neurological disorders
  • Women or partners who have already undergone sexual counseling or sex therapy
  • Women who are unable to sign the informed consent form for the study
04

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
200 participants (estimated)
Patient registry
No

Interventions

  • OtherQuestionnaire and Physical Exam

    Patients are enrolled at the time the diagnosis is communicated (T0). The questionnaire is administered again 6 months after the start of therapy or surgery (T1) and 12 months after completion of treatments or surgery (T2). Anamnestic and sociodemographic data of both the patient and the partner are recorded in the Case Report Form and entered into a dedicated database using a pseudo-anonymized identification code held exclusively by the Principal Investigator at the reference center. The questionnaire administered to patients includes the Female Sexual Function Index (FSFI) and a section of structured questions investigating sexual experience, satisfaction, and difficulties. Partners are also enrolled and assessed at the same time points; the International Index of Erectile Function (IIEF-15) is used for male partners, while the same assessment tools used for patients are administered to female partners.

05

What researchers measure

Primary outcomes

  1. Changes in FSFI questionnaire scores among female participants and IIEF scores among male participants across different assessment time points

    Time frame: 6 months

Secondary outcomes

  1. the percentage of patients and partners who report perceiving the sex therapy support as beneficial, and their preferred timing for its initiation, based on questionnaire responses

    Time frame: 6 months

06

Study locations

1 of 6 sites recruiting
  • IRCCS Azienda ospedaliero-universitaria di Bologna - Policlinico Sant'Orsola
    Bologna, Bologna 40138, Italy
    Not yet recruiting
  • IEO - Istituto Europeo di Oncologia
    Padova, Padova 20141, Italy
    Not yet recruiting
  • Policlinico Universitario Fondazione Agostino Gemelli
    Roma, Roma 0630151, Italy
    Not yet recruiting
  • IRCCS Materno infantile Burlo Garofolo
    Trieste, Trieste 34137, Italy
    Not yet recruiting
  • Presidio Ospedaliero Universitario "Santa Maria della Misericordia"
    Udine, Udine 33100, Italy
    Not yet recruiting
  • Ospedale P. Pederzoli Casa di Cura Privata S.p.A.
    Peschiera del Garda, Verona 37019, Italy
    Recruiting
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT07557342
Lead sponsor
Casa di Cura Dott. Pederzoli
Responsible party
Sponsor
First posted
Apr 29, 2026
Start date
Apr 2026 (estimated)
Primary completion
Oct 2026 (estimated)
Completion
Apr 2028 (estimated)
Last update
Apr 29, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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