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Anthesis: A Transdiagnostic Cognitive-Behavioral Therapy (CBT)-Based Approach to Sexual Distress: Testing a Pilot Online Intervention

Anthesis - A Transdiagnostic Approach to Sexual Distress: Testing a Pilot Online Intervention

Status
Active, not recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06823973
Acronym
Anthesis
Enrollment
30
Registered
2025-02-12
Start date
2025-03-07
Completion date
2025-09-30
Last updated
2025-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sexual Distress, Sexual Dysfunctions

Keywords

Sexual distress related to sexual function, Sexual distress, Cognitive behavioural therapy, Transdiagnostic approach, Online intervention, Pilot study

Brief summary

This pilot study, named Anthesis, evaluates the preliminary efficacy of an online pilot study for sexual distress related to sexual function (SDRSF) in adults. Anthesis is theoretically anchored on a transdiagnostic CBT-based approach to SDRSF. The experience of sexual distress, especially sexual distress related to sexual function (SDRSF), is associated with poorer physical health, poorer mental health, and relational conflicts, which makes the development of theoretically and empirically sustained clinical interventions to eliminate or minimize it fundamental. In this project, the authors will attempt to answer the overall research question: Does an online intervention aimed at transdiagnostic factors prove to have preliminary efficacy in reducing SDRSF? Driven by both theory and empirical evidence on the comorbidity between emotional disorders and sexual dysfunctions, this project will focus on SDRSF (as a primary outcome variable). It will be considered a secondary outcome of sexual function and sexual pleasure. Anthesis consists of eight modules (one module per week) delivered online. Participants will be divided into two conditions: an experimental condition that will start the intervention after the screening and a waiting list control condition (WLC) that will only begin its intervention after participants in the experimental condition have completed it.

Detailed description

Background: According to DSM-5-TR and ICD-11, the experience of some level of sexual distress is an essential condition to establish a diagnosis of sexual dysfunction (SD). Recent research suggests high comorbidity between several clinical conditions and SD (e.g., between depression and decreased desire; between anxiety and orgasmic difficulties), as well as the presence of psychological processes (e.g., perfectionism, emotional dysregulation, worry) in the aetiology and maintenance of several SD. These processes are also common to other emotional disorders. This relation between vulnerability and maintenance factors of emotional disorders and SDs suggests that a transdiagnostic approach, which studies factors common to different emotional problems, will be adequate to intervene in SDRSF. Research conducted worldwide indicates that most people facing distressing sexual problems do not actively seek or receive professional help. Many people feel ashamed to ask for health support for SDs and sexual problems. Additionally, various barriers-such as financial constraints, time limitations, long waiting lists, and a lack of specialists in sexual problems-hinder access to clinical support and negatively impact people's well-being and relationships. Therefore, the authors propose developing an online intervention that the literature indicates may increase accessibility to psychological interventions and help to overcome these barriers. This project, focused on eliminating or reducing SDRSF, involves a pilot randomized controlled trial with participants divided into an intervention condition and a waiting list condition. Potential participants will be screened for eligibility using questionnaires to evaluate SDRSF, sexual function and general sexual distress on the intervention platform. After this, the eligibility criteria will be verified through screening during a clinical phone interview. Before starting the intervention, all participants will be informed about the study details on an informed consent form and will be given contact information from the research team for further clarification, if needed. The entire intervention will occur through a secure online platform. The Anthesis protocol aims to a) reduce sexual distress related to sexual function, b) improve sexual function, and c) increase sexual pleasure.

Interventions

BEHAVIORALCBT-based transdiagnostic approach to sexual distress

It is constituted by 8 modules: 1. Psychoeducation about sexual function 2. Difficulties in emotional regulation 3. Non-judgmental emotional awareness 4. Cognitive flexibility 5. Worry and rumination 6. Perfectionism 7. Communication 8. Summary

BEHAVIORALWaiting list condition

The participants in the waiting list condition will receive the intervention after the participants in the intervention condition.

Sponsors

Grupo Lusófona
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Parallel Assignment

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

The inclusion criteria are: 1. experiencing distress related to sexual function 2. understanding Portuguese 3. being over 18 years old 4. being in an exclusive (monogamic) romantic relationship for more than six months Potential participants will be excluded if they are: 1. taking medication that interferes with the sexual response (e.g., antipsychotics, antidepressants, some types of hormone therapy or other) 2. having medical conditions that could impact the intervention outcomes (e.g., cancer, diabetes) 3. currently receiving psychological treatment, including psychological treatment for sexual dysfunctions or sexual problems 4. a transgender or intersex person 5. experiencing sexual pain

Design outcomes

Primary

MeasureTime frameDescription
Change from Sexual Function Evaluation QuestionnaireBaseline, post-intervention assessment (8 weeks after the baseline) and follow-up assessments at 3 monthsSexual problems are assessed using the Sexual Function Evaluation Questionnaire (SFEQ), which includes 16 items divided into four factors: distress related to sexual function (factor 1), partner relationships (factor 2), overall sex life (factor 3), and sexual confidence (factor 4). Responses are based on individuals' experiences over the past month, with four different options available. Higher scores for Factors 1, 2, and 3, combined with lower scores for Factor 4, indicate poorer sexual function. In the overall evaluation, higher total scores also represent lower sexual function, with a minimum total score of 16 and a maximum total score of 64.

Secondary

MeasureTime frameDescription
Change from Sexual Distress ScaleBaseline, post-intervention assessment (8 weeks after the baseline) and follow-up assessments at 3 monthsSexual distress is assessed using the Sexual Distress Scale (SDS), a unidimensional scale consisting of 12 items. Each item is evaluated on a Likert-type scale ranging from 0 to 4, with higher scores denoting increased sexual distress experienced over the past 30 days. The minimum score is 0, and the maximum total score is 48, with higher scores suggesting greater sexual distress.
Change from International Index of Erectile FunctionBaseline, post-intervention assessment (8 weeks after the baseline) and follow-up assessments at 3 monthsMale sexual function is assessed using the International Index of Erectile Function (IIEF), which consists of 15 items distributed across five factors: erectile function (factor 1), orgasmic function (factor 2), sexual desire (factor 3), intercourse satisfaction (factor 4), and overall satisfaction (factor 5). Each item is rated on a Likert-type scale from 0 to 5-where lower scores indicate greater male sexual dysfunction experienced over the last four weeks. In instances where no sexual activity occurred, a score of 0 is given. The maximum total score is 75, with lower overall scores suggesting an increased risk of sexual dysfunction.
Change from Female Sexual Function IndexBaseline, post-intervention assessment (8 weeks after the baseline) and follow-up assessments at 3 monthsFemale sexual function is measured using the Female Sexual Function Index (FSFI), which comprises 19 items distributed across six factors: desire (factor 1), arousal (factor 2), lubrication (factor 3), orgasm (factor 4), satisfaction (factor 5), and pain (factor 6). Each item is rated on a Likert-type scale ranging from 1 to 5-with lower scores indicating greater dysfunction over the past 4 weeks-and in cases where no sexual activity occurred, a score of 0 is assigned. The maximum total score is 36, with lower values suggesting a risk of sexual dysfunction.
Change from Sexual Pleasure ScaleBaseline, post-intervention assessment (8 weeks after the baseline) and follow-up assessments at 3 monthsSexual pleasure derived from sexual relationships, activities, and intimacy is assessed using the Sexual Pleasure Scale (SPS), a unidimensional scale that comprises 13 items. Each item on the scale is rated using a Likert-type scale ranging from 0 to 4, with higher scores indicating greater sexual pleasure. The minimum total score is 0, which represents no sexual pleasure, while the maximum score is 52, indicating the highest level of sexual pleasure experienced.

Countries

Portugal

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026