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Sexual AddictionCASNCT04923451

tDCS in Treatment of Craving in Sexual Addiction

A study testing Active Trans-cranial direct current stimulation (tDCS) in people with Sexual Addiction and Hypersexualism, run by Centre Hospitalier St Anne.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In patients with addiction to a substance, an increase in activity in the prefrontal cortex induced by transcranial Direct Current Stimulation -tDCS (non-invasive technique, modulating cortical activity by applying low-intensity electrical currents between two electrodes),may help reduce craving in people addicted to… Read more about this study

Who is it for?
Ages 18 to 60 years, men onlyHealthy volunteers can take part
Conditions the study is for
Sexual Addiction, Hypersexualism
What is being tested?
Active Trans-cranial direct current stimulation (tDCS)
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
50 participants
Where
No sites listed yet
Study dates
1 Jul 2021to 1 Oct 2024
Phase
Interventional
Are there results?
None posted in the registry

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 to 60 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 18-60 year old male
  • Heterosexual
  • Right-handed (Manual laterality test)
  • With a sexual addiction (PEACCE Tool> 3 and Carnes ≥ 13/25) except for controls
  • Having signed a written and informed consent
  • Subject benefiting from social security

Who cannot join

  • Subject presenting a medical pathology requiring drug treatment,
  • Severe psychiatric pathology (bipolar disorder, hyperactivity or schizophrenia) or another addiction (alcohol, illicit substances or behavioral addiction)
  • Subject consuming psychotropic drugs in progress or during the last month
  • Subject not understanding French
  • Subject under tutorship or curatorship
  • Subjects with neurological disease including epilepsy or a history of head trauma
Show all 9Show fewer
  • Subjects hospitalized in enforced hospitalization
  • Subject presenting a contraindication to tDCS: subject with an electrical or metal brain implant
  • Subject with a contraindication to MRI

Trial locations and contacts

No sites are listed yet.

Leo Malandain, MD contact

0033158411678

leo.malandain@aphp.fr

Florence Thibaut, MD-PHD contact

florence.thibaut@aphp.fr

About this study

Official title: Transcranial Electrical Stimulation in Sexual Addiction: an Innovative Treatment for a Better Understanding of the Physiopathology of Craving

In patients with addiction to a substance, an increase in activity in the prefrontal cortex induced by transcranial Direct Current Stimulation -tDCS (non-invasive technique, modulating cortical activity by applying low-intensity electrical currents between two electrodes),may help reduce craving in people addicted to alcohol and tobacco. By analogy with addictive behavior with a substance, the craving observed in certain behavioral addictions would involve the same neural circuits.

The main hypothesis is to reduce the sexual craving associated with the viewing of erotic images during active brain stimulation compared to placebo stimulation. Functional MRI will allow to better understand the neural circuits involved in sexual addiction and in the expected inhibition of sexual arousal by tDCS in sexual addictions during visualization erotic images.

Read the detailed description

The concept of sexual addiction appeared in American literature about 20 years ago. The term sexual addiction describes an excessive, increasing, and especially uncontrolled frequency of sexual behavior, as a conventional rule, associated with a compelling and irrepressible sexual desire (craving), which persists in spite of the possible negative consequences and personal suffering of the subject. The prevalence of this condition is estimated to be approximately 3-6% in the general population in the United States, it is independent of the socio-cultural environment. The pathophysiology of sexual addictions remains very poorly understood.

Numerous studies have focused on substance addictions and their pathophysiology. The mesolimbic dopaminergic system plays a major role in addictive behavior. The prefrontal cortex and the basolateral region of the amygdala play an important role in the craving and may cause relapse in subjects. In subjects with sexual addiction, only one controlled study has been conducted on the role of antidepressant treatment in the reduction of craving. The objective of the study is not only to evaluate the efficacy of tDCS neurostimulation in this disorder but also to identify the brain structures involved in this addictive disorder.

Being tested
Active Trans-cranial direct current stimulation (tDCS), Sham Trans-cranial direct current stimulation (tDCS)
Keywords
Sexual Addiction, Hypersexualism, Neurostimulation, tDCS, fMRI
Medical subject headings
Compulsive Sexual Behavior Disorder

What participants receive

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

  • Active Trans-cranial direct current stimulation (tDCS)Device

    5 active sessions (1/day for 5 consecutive days) of tDCS (NeuroConn DC), active anode 8cm2 on right dorso-lateral prefrontal cortex and neutral cathode, 2 mA, during 30 min will be performed

  • Sham Trans-cranial direct current stimulation (tDCS)Device

    5 placebo sessions (1/day for 5 consecutive days) of sham tDCS (NeuroConn DC), anode 8cm2 on right dorso-lateral prefrontal cortex and neutral cathode during 30min will be performed

Study groups in NCT04923451
Study groupRoleWhat they receive
Patient with sexual addiction - active stimulationActive comparator25 patients with sexual addiction will be stimulated by active tDCS during 5 consecutive days
Receives: Device: Active Trans-cranial direct current stimulation (tDCS)
Patient with sexual addiction - sham stimulation (placebo)Sham comparator25 patients with sexual addiction will be stimulated by sham tDCS stimulation (placebo) during 5 consecutive days
Receives: Device: Sham Trans-cranial direct current stimulation (tDCS)

What is being measured

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

  1. Efficacy of tDCS in treatment of craving of sexual addiction

    The primary outcome is to assess the effectiveness of tDCS treatment on the reduction of the craving by comparing before and after active tDCS stimulation in response to erotic-pornographic images.

    Efficacy will be quantified by a sexual craving scale associated with erotico-pornographic images before and after tDCS stimulation.

    A significant decrease in craving and score on the scale is expected after tDCS stimulation. compared to control subjects. Images of social and neutral interactions will be used as comparison of expected changes.

    The scale used is the PATHOS scale: brief sexual addiction screening questionnaire.

    Measured: 3 years

  2. Efficacy of tDCS in treatment of sexual addiction in subjective emotional response

    For the evaluation of efficacy of tDCS in emotional response, indirect measurement of craving, visual emotional responses scales (Likert) will be used during visualization of erotico-pornographic images, before and after stimulation. The "desire" will be quantified on a Likert scale from 0 to 7.

    Measured: 3 years

  3. Efficacy of tDCS in treatment of sexual addiction in objective emotional response

    An assessment of emotional responses will also be done using heart rate measure during visualization of images in fMRI, before and after stimulation by tDCS

    Measured: 3 years

Secondary outcomes (4)
  1. Brain structures involved in sexual addiction

    The secondary objectives are the evaluation of the brain structures involved in sexual addiction, especially craving, and the study of the modifications of the circuits involved after the application of tDCS.

    A modification of the BOLD signal in fMRI in the mesolimbic reward system as well as in the dorsolateral prefrontal cortex, orbitofrontal cortex and the amygdala in response to erotic images is expected after tDCS. 50 patients with sexual addiction will be compared with 25 healthy subjects for this objective

    Measured: 3 years

  2. Evaluation of Impulsivity with The Barratt Impulsiveness Scale

    In addition, the evaluation of impulsivity and inhibition capacities of the frontal cortex will be conducted.Changes in impulsivity scale scores and motor inhibition task scores are expected after tDCS.

    Measured: 3 years

  3. Evaluation of Impulsivity with UPPS-P Impulsive Behavior Scale

    A decrease in scores on this scale is expected after stimulation compared to patients who received placebo stimulation.

    Measured: 3 years

  4. Evaluation Evaluation of Impulsivity with Stop Signal Task

    A decrease in scores on this scale is expected after stimulation, compared to patients who received placebo stimulation.

    Measured: 3 years

Timeline

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

  1. First posted11 Jun 2021
  2. Study start1 Jul 2021 (estimated)
  3. Primary completion1 Nov 2023 (estimated)
  4. Study completion1 Oct 2024 (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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Quantitative data regarding the intensity of emotional response and craving to erotic images, motor inhibition task and impulsivity will be presented in the form of frequency, mean and standard deviation (SD) calculations and compared using a 2-factor repeated measures ANOVA taking into account the fact that the patient will be compared to himself (position 1 and 2 and placebo) and to other patients using 3 kinds of images (erotic, social and neutral) with 3 types of possible stimulations. In order to analyze the fMRI data, the regions of the patient's body will be identified. in which the BOLD activity will be correlated to the attractiveness of the image. Foreach patient, the difference before and after stimulation will be calculated. There will be no intermediate analysis.
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04923451
Sponsor's protocol ID
D20-P039
Acronym
CAS
Status last verified
Nov 2020
First submitted
22 Mar 2021
Last updated
11 Jun 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Garcia FD, Thibaut F. Sexual addictions. Am J Drug Alcohol Abuse. 2010 Sep;36(5):254-60. doi: 10.3109/00952990.2010.503823.

    PubMed 20666699
  • Malandain L, Blanc JV, Ferreri F, Thibaut F. Pharmacotherapy of Sexual Addiction. Curr Psychiatry Rep. 2020 May 7;22(6):30. doi: 10.1007/s11920-020-01153-4.

    PubMed 32377953
  • Wainberg ML, Muench F, Morgenstern J, Hollander E, Irwin TW, Parsons JT, Allen A, O'Leary A. A double-blind study of citalopram versus placebo in the treatment of compulsive sexual behaviors in gay and bisexual men. J Clin Psychiatry. 2006 Dec;67(12):1968-73. doi: 10.4088/jcp.v67n1218.

    PubMed 17194276
  • Volkow ND, Wang GJ, Fowler JS, Tomasi D, Telang F. Addiction: beyond dopamine reward circuitry. Proc Natl Acad Sci U S A. 2011 Sep 13;108(37):15037-42. doi: 10.1073/pnas.1010654108. Epub 2011 Mar 14.

    PubMed 21402948
  • Voon V, Mole TB, Banca P, Porter L, Morris L, Mitchell S, Lapa TR, Karr J, Harrison NA, Potenza MN, Irvine M. Neural correlates of sexual cue reactivity in individuals with and without compulsive sexual behaviours. PLoS One. 2014 Jul 11;9(7):e102419. doi: 10.1371/journal.pone.0102419. eCollection 2014.

    PubMed 25013940
  • Rosenberg KP, Carnes P, O'Connor S. Evaluation and treatment of sex addiction. J Sex Marital Ther. 2014;40(2):77-91. doi: 10.1080/0092623X.2012.701268. Epub 2013 Jun 21.

    PubMed 23790248

Questions about this trial

What is this clinical trial studying?

A study testing Active Trans-cranial direct current stimulation (tDCS) in people with Sexual Addiction and Hypersexualism, run by Centre Hospitalier St Anne.

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 6 inclusion and 9 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: status not confirmed, as of the sponsor's last update on 11 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

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

Contact Leo Malandain, MD (0033158411678, leo.malandain@aphp.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy of tDCS in treatment of craving of sexual addiction (time frame: 3 years). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04923451, which also lists 6 linked publications.

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 11 Jun 2021.

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