Preventing sexual abusers of children from reoffending: systematic review of medical and psychological interventions

The Treatment Needs and Experiences of Pedohebephiles: A Systematic Review

People with a sexual interest in children face significant barriers to seeking and receiving mental health treatment. This review aims to bridge the gap between the treatment needs and experiences of pedohebephiles, and the services aiming to support them. Reviewers screened 1705 database hits and extracted findings from 22 qualitative, 15 quantitative, and 3 mixed-method studies on the treatment needs and experiences of pedohebephiles. Research suggests that this population experiences significant levels of distress, depression, and anxiety related to their sexual interest. Many individuals belonging to this population would seek (median = 42.3%), or have sought (median = 46.5%), treatment to cope with their sexual interest or with potential related mental health repercussions. Their experiences in treatment have been mixed, with some reporting positive experiences with empathic therapists and others reporting rejection. Most frequently, pedohebephiles report fear of exposure and rejection as barriers to seeking treatment, in addition to fear of the legal repercussions. The current study is the first to summarize and discuss previous findings on the treatment needs and experiences of pedohebephiles. The findings indicate that the treatment needs of pedohebephiles often remain unaddressed. Suggestions to increase the fit between treatment services and the needs of pedohebephiles are put forward.

Learning From Consumers of Mandated Sex-Offending Programs: "It's Not Treatment, I Wish It Was."

The purpose of this qualitative study was to explore clients' perceptions of sex-offending treatment. The sample included 291 people required to register as sex offenders in the U.S. who answered an open-ended question in an online survey asking them to describe their positive and negative experiences in mandated treatment. Using qualitative analysis, three overarching themes (with several subthemes) were identified: (1) positive and (2) negative treatment experiences and (3) the affiliation between the criminal justice system and clinical services. Experiences in sex offending treatment were viewed as positive when clients had opportunities to learn about themselves, experience group cohesion, build a positive alliance with a caring therapist, learn tools and skills for emotional health, explore the roots of offense behavior, and create healthy life plans to reduce risk for re-offending. Negative themes emerged when treatments were viewed as coercive, confrontational, or demeaning; when therapists seemed inexperienced or unqualified; and when seemingly outdated or unscientific methods were emphasized without explanation or dialogue. The entanglement between court-mandated treatment providers and the criminal justice system led to concerns about confidentiality, conflicts of interest, and role ambiguity. Drawing upon literature related to therapeutic alliance, trauma-informed care, and Risk-Need-Responsivity models, we offer suggestions for integrating client feedback to improve treatment responsivity and prevent re-offending.

Individuals under voluntary treatment with sexual interest in minors: what risk do they pose?

Child Sexual Abuse (CSA) and the production, use, and distribution of Child Sexual Abuse Material (CSAM) are key threats to children's mental health. From the perspective of indicated prevention, it can be assumed that some persons with a sexual interest in children commit such unreported crimes. Accordingly, the German Network kein Täter werden (meaning do not offend) has implemented a confidential treatment service for persons with a sexual interest in minors who voluntarily seek therapy, might or might not have offended but have not yet been detected or have fulfilled all legal requirements (here referred to as non-forensic individuals). However, this offer has been questioned for investing resources in a group which critics consider as low risk. The following study addresses the question of recidivism risks for CSA or viewing CSAM among non-forensic individuals. We found significantly higher rates of CSA/CSAM in our participants' history compared to a German study on a representative sample of males. Regarding CSAM, the recidivism rate of 39% was found to be 11 times higher than the expected recidivism rate based on previous publications. Regarding CSA, the recidivism rate of 14% was not significantly different from the expected rate reported for subjects with a conviction for a sexual contact offense. Among various risk instruments, only the CPORT with CASIC rating was able to predict CSA (AUC = 0.69, 95% CI = 0.55, 0.82) and CSAM (AUC = 0.63, 95% CI = 0.53, 0.73) among individuals with a history of CSAM, but with poor discrimination. We conclude that a large proportion of our sample poses a substantial risk and therefore treatment resources are well invested. However, further studies are needed to improve risk assessment among non-forensic clients.

The Effectiveness of Psychological Treatment in Adult Male Convicted for Sexual Offenses Against Children: A Systematic Review

Child sexual abuse is a public health problem of global magnitude with profound and negative consequences for the victims and society. Thus, psychological intervention with individuals who sexually offended against children is crucial for reducing recidivism. Numerous reviews and meta-analyses have shown the effectiveness of psychological interventions in individuals who sexually offended, but few reviews have been done on this subtype of offenders. This article reviews evaluation studies of intervention programs designed to treat individuals who sexually offended against children, providing a more detailed account of treatment procedures. Articles were identified from peer-reviewed databases, bibliographies, and experts. Following full-text review, 12 studies were selected for inclusion by meeting the following criteria: quantitative or qualitative research studies published in English from 2000 to 2020 with titles or abstracts that indicated a focus on treatment effectiveness, detailing the psychological treatment procedures on adult, male individuals convicted for child sexual abuse. Cognitive-behavioral therapy with a relapse prevention approach was the most frequent modality found in child sexual offending treatment. Besides, different criminogenic and non-criminogenic factors emerge as targets for intervention. Study design, study quality, and intervention procedures shortened the accumulation of evidence in treatment effectiveness.

Effects of internet-delivered cognitive behavioral therapy on use of child sexual abuse material: A randomized placebo-controlled trial on the Darknet

INTRODUCTION

The use of child sexual abuse material (CSAM) is an international public health and child protection challenge.

OBJECTIVE

To investigate whether Prevent It, a therapist-supported, internet-delivered, eight-week, cognitive behavioral therapy, reduces CSAM viewing among users.

METHODS

We conducted a global online single-blind (participants), parallel-group, superiority, randomized, psychological placebo-controlled trial with a one-month follow-up, 2019-2021 (ISRCTN76841676). We recruited anonymous participants, mainly from Darknet forums. Inclusion criteria: age 18+ years, past week CSAM use, and sufficient English language skills; exclusion criteria: severe psychiatric illness or non-serious intent to participate. The main outcome was change in self-reported, weekly viewing time from pre- to post-treatment, according to the Sexual Child Molestation Risk Assessment+.

RESULTS

A total of 160 participants (157 male, 2 non-binary, and 1 not reporting gender) from all world regions (age intervals [%]: 18-29 [49]; 30-39 [30]; 40-49 [15]; 50-59 [6]) were randomized (1:1) to Prevent It (N = 80) or Placebo (N = 80). Between-group, intention-to-treat analyses suggested a significantly larger decrease in viewing time in Prevent It participants vs. controls pre- to post-treatment (Prevent It: N = 76, Placebo: N = 78, estimate -0.25, 95 % CI, -0.46 to -0.04, p = .017, Cohen's d 0.18). Negative side effects from treatment were fewer in Prevent It compared to control participants and neither group reported severe adverse events.

CONCLUSION

We provide initial support for the feasibility, efficacy, and safety of Prevent It to reduce CSAM viewing among motivated users. Further research is needed to validate these findings.

Adverse Childhood Experiences, Aggression, Empathy, and Psychopathology in Adult Males Accused of Rape

BACKGROUND

Investigating the underlying psychosocial factors is a cornerstone of planning need-based intervention for adult males accused of rape. Unresolved debates on its etiology, mediation, or interaction among causal psychosocial variables fuel curiosity to scrutinize it further. Hence, we studied potential influence of and relation between adverse childhood experiences, aggression, empathy, and psychopathology in adult males accused of rape in India and investigated the risk factors for the same.

METHODS

With a correlational research design, 40 literate and consenting adult males medically confirmed for rape were recruited using convenient sampling. The assessment was done on Adverse Childhood Experiences, Aggression Questionnaire, Symptom Checklist-90, and Interpersonal Reactivity Index. Descriptive statistics, Pearson's product-moment correlation, and stepwise linear regression analysis were calculated.

RESULTS

Approximately 75% of the participants experienced at least one category of Adverse Childhood Experiences. Scores above cut-off points were obtained on anger, hostility, fantasy, and personal distress. Significant correlations were obtained between adverse childhood experiences and psychopathology; between hostility and psychopathology, perspective taking, and personal distress; and in case of indirect aggression, with perspective taking and empathetic concerns. Regression analysis revealed that an increase in Symptom Checklist-90 global scores increases hostility and that lower personal distress predicts higher scores on hostility on Aggression Questionnaire.

CONCLUSIONS

Adverse childhood experiences, aggression, and psychopathology play a critical role and, therefore, should be included as core components of the prevention of rape or relapse prevention programs at the community level.

Pharmacological Treatment for Pedophilic Disorder and Compulsive Sexual Behavior Disorder: A Review

Guidelines for the pharmacological treatment of paraphilic disorders have historically been based on data from forensic settings and on risk levels for sexual crime. However, emerging treatment options are being evaluated for individuals experiencing distress because of their sexual urges and preferences, targeting both paraphilic disorders such as pedophilic disorder (PeD) and the new diagnosis of compulsive sexual behavior disorder (CSBD) included in the International Classification of Diseases, 11th Revision (ICD-11). As in other mental disorders, this may enable individualized pharmacological treatment plans, taking into account components of sexuality (e.g. high libido, compulsivity, anxiety-driven/sex as coping), medical and psychiatric comorbidity, adverse effects and patient preferences. In order to expand on previous reviews, we conducted a literature search focusing on randomized controlled trials of pharmacological treatment for persons likely to have PeD or CSBD. Our search was not restricted to studies involving forensic or criminal samples. Twelve studies conducted between 1974 and 2021 were identified regardless of setting (outpatient or inpatient), with only one study conducted during the last decade. Of a total of 213 participants included in these studies, 122 (57%) were likely to have PeD, 34 (16%) were likely to have a CSBD, and the remainder had unspecified paraphilias (40, 21%) or sexual offense (17, 8%) as the treatment indication. The diagnostic procedure for PeD and/or CSBD, as well as comorbid psychiatric symptoms, has been described in seven studies. The studies provide some empirical evidence that testosterone-lowering drugs reduce sexual activity for patients with PeD or CSBD, but the body of evidence is meager. There is a need for studies using larger samples, specific criteria for inclusion, longer follow-up periods, and standardized outcome measures with adherence to international reporting guidelines.

Community intervention programs for sex offenders: A systematic review

Sexual violence is a phenomenon that negatively impacts the victims' physical and psychological health and well-being. Sex offenders tend not to take responsibility for their actions, have difficulties in emotion regulation and impulse control, paraphilias or other disorders, so they are a difficult group to treat. In addition, the available psychological treatment programs tend to have inconsistent and, sometimes, undesirable results. This systematic review aimed to analyse the recidivism rates of sex offenders treated in community settings. According to the PRISMA guidelines, a systematic search in three databases, EBSCOhost, PubMed, and Web of Science, and a manual search was performed. A total of 319 empirical studies using quantitative methodologies were identified, 27 of which were selected for full-text analysis. In the end, 15 studies were included, published between 1996 and 2020. The objectives, intervention approach, instruments used, and the main results and conclusions were extracted from each study. The studies explored different types of sex offenders, such as: violent sex offenders (e.g., rapists), child abusers, and child abusers with pedophilia (and/or other paraphilias). Results showed that most of the programs had a cognitive-behavioral approach (n = 13). Overall, the interventions appear to be effective in reducing recidivism rates, and some of them led to improvements in other outcomes, such as cognitive distortions, accepting responsibility, victim awareness and empathy, emotional regulation, and offense supportive attitudes. Limitations and implications for future studies were discussed.

Conducting Randomized Controlled Trials of Complex Interventions in Prisons: A Sisyphean Task?

Randomized Controlled Trials (RCT) are the "gold standard" for measuring the effectiveness of an intervention. However, they have their limitations and are especially complex in prison settings. Several systematic reviews have highlighted some of the issues, including, institutional constraints e.g., "lock-downs," follow-ups, contamination of allocation conditions and a reliance on self-report measures. In this article, we reflect on our experiences and will describe two RCTs. People in prison are a significantly disadvantaged and vulnerable group, ensuring equitable and effective interventions is key to reducing inequality and promoting positive outcomes. We ask are RCTs of complex interventions in prisons a sisyphean task? We certainly don't think so, but we propose that current accepted practice and research designs may be limiting our understanding and ability to test complex interventions in the real-world context of prisons. RCTs will always have their place, but designs need to be flexible and adaptive, with the development of other rigorous methods for evaluating impact of interventions e.g., non-randomized studies, including pre-post implementation studies. With robust research we can deliver quality evidence-based healthcare in prisons - after all the degree of civilization in a society is revealed by entering its prisons.

Early Treatment Change in Perpetrators of Sexual Versus Non-Sexual Violence

The purpose of this study is to assess treatment change at both a group and individual level in a sample of 81 Dutch male patients who received mandated care for either violent (non-sexual) behavior or sexual violent behavior. Psychiatric nurses rated patients' social skills, insight, hostility, physical violence with the BEST-Index every 6 months over the course of 2 years after patients were admitted to hospital. Mixed analysis of covariances and the reliable change index indicated that patients, irrespective of offense type, showed treatment change over time with exception of physical violence. This study shows that general treatment may be useful in the first 18 month for risk factors common to different types of offenses, but that specialized treatment is needed to establish further change.

Effectiveness of psychological interventions in prison to reduce recidivism: a systematic review and meta-analysis of randomised controlled trials

BACKGROUND

Repeat offending, also known as criminal recidivism, in people released from prison has remained high over many decades. To address this, psychological treatments have been increasingly used in criminal justice settings; however, there is little evidence about their effectiveness. We aimed to evaluate the effectiveness of interventions in prison to reduce recidivism after release.

METHODS

For this systematic review and meta-analysis, we searched the Cochrane Central Register of Controlled Trials, Embase, Global Health, MEDLINE, PsycINFO, and Google Scholar for articles published from database inception to Feb 17, 2021, without any language restrictions. We searched for randomised controlled trials (RCTs) that evaluated the effect of psychological interventions, delivered to adolescents and adults during incarceration, on recidivism outcomes after release. We excluded studies of solely pharmacological interventions and of participants in secure psychiatric hospitals or special residential units, or attending therapies mainly delivered outside of the prison setting. We extracted summary estimates from eligible RCTs. Data were extracted and appraised according to a prespecified protocol, with effect sizes converted to odds ratios. We used a standardised form to extract the effects of interventions on recidivism and estimated risk of bias for each RCT. Planned sensitivity analyses were done by removing studies with fewer than 50 participants. Our primary outcome was recidivism. Data from individual RCTs were combined in a random-effects meta-analysis as pooled odds ratios (ORs) and we explored sources of heterogeneity by comparing effect sizes by study size, control group, and intervention type. The protocol was pre-registered with PROSPERO, CRD42020167228.

FINDINGS

Of 6345 articles retrieved, 29 RCTs (9443 participants, 1104 [11·7%] females, 8111 [85·9%] males, and 228 [2·4%] unknown) met the inclusion criteria for the primary outcome. Mean ages were 31·4 years (SD 4·9, range 24·5-41·5) for adult participants and 17·5 years (SD 1·9; range 14·6-20·2) for adolescent participants. Race or ethnicity data were not sufficiently reported to be aggregated. If including all 29 RCTs, psychological interventions were associated with reduced reoffending outcomes (OR 0·72, 95% CI 0·56-0·92). However, after excluding smaller studies (<50 participants in the intervention group), there was no significant reduction in recidivism (OR 0.87, 95% CI 0·68-1·11). Based on two studies, therapeutic communities were associated with decreased rates of recidivism (OR 0·64, 95% CI 0·46-0·91). These risk estimates did not significantly differ by type of control group and other study characteristics.

INTERPRETATION

Widely implemented psychological interventions for people in prison to reduce offending after release need improvement. Publication bias and small-study effects appear to have overestimated the reported modest effects of such interventions, which were no longer present when only larger studies were included in analyses. Findings suggest that therapeutic communities and interventions that ensure continuity of care in community settings should be prioritised for future research. Developing new treatments should focus on addressing modifiable risk factors for reoffending.

FUNDING

Wellcome Trust, Fonds de recherche du Québec - Santé.

Reaching Men and Women at Risk of Committing Sexual Offences - Findings From the National Swedish Telephone Helpline PrevenTell

BACKGROUND

In 2012 the Swedish Helpline project PrevenTell, targeting men and women with self-identified out-of-control and paraphilic sexual behavior, was launched by ANOVA, Karolinska University Hospital. The overall purpose was to reach the target group and via a telephone-contact encourage further on-site assessment and treatment.

AIM

To describe men and women contacting PrevenTell during the first 7 years by delineate sexuality-related risk-factors for sexual violence, gender differences, and age- and gender-preferences when reporting a pedophilic interest.

METHOD

A 52-item semi-structured telephone interview was conducted by experts in sexual medicine with individuals who contacted the helpline. The interview covered sociodemographic characteristics, problematic sexual behavior(s), and mental health and based on the information reported, interventions included recommending an appointment at ANOVA, supporting other appropriate healthcare, or motivation of individuals still ambivalent to treatment.

RESULTS

Data collection took place between March 2012 and October 2019. A total of 1573 respondents in the main target group (1454 men and 119 women) gave informed consent for participation. Compulsive sexual behavior was reported by 69% of respondents and 56% described at least one paraphilic interest. The prevalence of concomitant compulsive sexual behavior and a paraphilic interest was high, varying between 65% and 83%. Significant gender differences were found in socioeconomic and mental health variables, in which women showed fewer positive and stable life factors compared to men. A sexual preference for minors was reported by 24% of respondents. In this group, 63% reported use of child sexual exploitation material and 15% committed child sexual abuse. Respondents were offered anonymity, however 55% disclosed their identity and were enrolled for further assessment and treatment at ANOVA.

CLINICAL IMPLICATIONS

The result of this study is of substantial relevance when developing secondary preventive initiatives targeting sexual violence in the community.

STRENGTHS AND LIMITATIONS

This is the first study to present data from a national helpline targeting both men and women with a wide range of self-identified problematic sexual behaviors. Limitations include the lack of diagnostic confirmation on-site, hence, presented data provides only an indication of clinical conditions. Furthermore, the main objective of the interview was to motivate participants to seek further treatment, sometimes necessary to prioritize this over adherence to the semi-structured questionnaire, explaining the relatively high absence rate in some variables.

CONCLUSION

Men and women at risk of committing sexual crimes can be reached through a national helpline service and motivated to undergo further assessment and treatment. Adebahr R, Söderström EZ, Arver S, et al. Reaching Men and Women at Risk of Committing Sexual Offences - Findings From the National Swedish Telephone Helpline PrevenTell. J Sex Med 2021;XX:XXX-XXX.

Interventions that address institutional child maltreatment: An evidence and gap map

Background

Child maltreatment has serious short and long-term negative impacts for those experiencing it. Child maltreatment occurring in institutional settings has recently received substantial attention. However, evidence about the effectiveness of interventions that prevent, disclose, respond to, or treat maltreatment that has occurred in these environments is fragmented and can be difficult to access. This evidence and gap map (EGM) collates this research evidence. It was developed as a resource for stakeholders operating in the child health, welfare and protection sectors, including practitioners, organisational leaders, policy developers and researchers, wanting to access high quality evidence on interventions addressing institutional child maltreatment.

Objectives

The objectives of this EGM were twofold: (a) To provide a structured and accessible collection of existing evidence from finalised and ongoing overviews of systematic reviews, systematic reviews and effectiveness studies of interventions addressing institutional child maltreatment-for those who work to fund, develop, implement and evaluate interventions aimed at ensuring children's safety in institutional settings; (b) to identify gaps in the available evidence on interventions addressing institutional child maltreatment-thereby helping to inform the research agendas of funders and other organisations.

Search Methods

A comprehensive search strategy identified relevant studies from published and grey literature, comprising: (1) 10 electronic academic databases; (2) five trial and systematic review registries; (3) nine organisational websites; (4) websites and reference lists of inquiry reports associated with seven international inquiries into child abuse and (4) the lists of included studies within systematic reviews identified by the search strategy. Members of this EGM's Subject Matter Experts group were also invited to forward relevant unpublished studies or grey literature.

Selection Criteria

The selection criteria were developed to identify finalised and ongoing overviews of reviews, systematic reviews and primary studies that reported on the effectiveness of interventions addressing child maltreatment (including sexual abuse, physical abuse, neglect and emotional abuse) within institutional settings. Eligible effectiveness study designs included: randomised controlled trials (RCTs), nonrandomised trials, controlled before-and-after studies and quasi-experimental studies. Reviews were eligible if they reported a systematic literature search strategy.

Data Collection and Analysis

All screening, data extraction, coding and critical appraisals were undertaken by two or more reviewers working independently, with discrepancies resolved via consensus or by a third reviewer. The titles and abstracts of studies identified by the search strategy were screened, and each full text of potentially relevant studies was further assessed for inclusion. Key data were extracted from all included studies and reviews. This included information about: publication details (e.g., year, author, country), inclusion/exclusion criteria (for reviews), study design, institutional setting, target population, type of maltreatment, intervention type and outcomes. Critical appraisal of included systematic reviews was achieved using the AMSTAR 2 tool, and completed RCTs were assessed using the updated Cochrane Risk of Bias 2.0 tool.

Main Results

Number of studies The electronic database search yielded 6318 citations, and a further 2375 records were identified from additional sources. Following deduplication and title/abstract screening, 256 studies remained for full text review. A total of 73 eligible studies (reported across 84 publications) met the inclusion criteria, including: 11 systematic reviews (plus, one update); 62 primary studies (including, three protocols for primary studies). Study characteristics The studies were conducted across 18 countries, however more than half (52%) were undertaken in the United States. Overall, most studies evaluated curriculum-based interventions delivered in educational settings, primarily aimed at the prevention of sexual abuse. Institutional setting: Most studies evaluated interventions in school or early learning environments (n = 8 systematic reviews; n = 58 primary studies). Far fewer studies examined other organisational settings. Out of home care (including foster care, residential care and orphanages), and social service organisations servicing children were minimally represented. No studies were identified where the primary setting was sports clubs, churches/religious organisations, summer/vacation camps, detention centres/juvenile justice settings, or primary/secondary health care facilities. Target population: Most interventions targeted children rather than adults (n = 7 systematic reviews; n = 47 primary studies) from the general population. Fewer studies included populations known to be at an increased risk, or those already exposed to maltreatment. Just over a third of the primary studies conducted an analysis to ascertain differences in the effect of an intervention between the genders. Intervention type: Prevention interventions were the most studied (n = 5 systematic reviews; n = 57 primary studies), with additional studies including prevention approaches alongside other intervention types. Fewer studies evaluated interventions targeting disclosure, institutional responses, or treatment interventions. Type of maltreatment: The vast majority of the studies assessed interventions solely addressing the sexual abuse of children (n = 8 systematic reviews; n = 45 primary studies). The remaining studies addressed other forms of maltreatment, including physical and emotional abuse, or neglect, either in combination or as a sole focus. Outcomes: Primary reported outcomes reflected the bias toward child targeted interventions. Outcome measures captured child wellbeing and knowledge outcomes, including measures of mental health, children's knowledge retention and/or self-protective skills. Measures of maltreatment disclosure or maltreatment occurrence/reoccurrence were less common, and all other outcome categories included in the EGM were minimally or not reported. A third of studies reported on some measure of implementation. Study quality The overall quality of the studies was low to moderate. Most systematic reviews were low-quality (n = 10), with only one high quality review (and update) identified. Most completed RCTs had some concerns relating to the risk of bias (n = 30), and the remainder were considered to be at a high risk of bias (n = 19).

Authors' Conclusions

This EGM has highlighted a substantial need for more high quality studies that evaluate interventions across a broader range of institutional contexts and maltreatment types. The current evidence base does not represent countries with large populations and the greatest incidence of child maltreatment. Few studies focussed on perpetrators or the organisational environment. Further evidence gaps were identified for interventions relating to disclosure, organisational responses and treatment, and few studies assessed interventions targeting perpetrators' maltreatment behaviours, recidivism or desistence. Future studies should also include measure of programme implementation.

Mandated or Voluntary Treatment of Men Who Committed Child Sexual Abuse: Is There a Difference?

Child sexual abuse is associated with multiple and often severe consequences for people who are affected by it. From the perspective of indicative prevention, the treatment of people who have sexually abused children represents one important strategy, with the assumption that there is often a risk for sexual recidivism. However, there is still very limited knowledge about how men who have not been convicted of child sexual abuse but participate in voluntary treatment (here called non-forensic clients) differ from those who have been convicted and undergo mandated treatment (here called forensic clients). This study compared 22 forensic and 22 non-forensic clients regarding pedophilic interests, static and dynamic risk factors, responsivity features, and treatment progress during an individualized treatment based on the principles of risk, need, and responsivity. We found neither differences in the rates in the DSM-5 diagnosis of pedophilic disorder, nor in risk and responsivity associated scores at the beginning of treatment. In both groups, a low to moderate risk for sexual re-offending was estimated. Both groups improved their functioning on dynamic risk and responsivity factors under treatment, while age at the beginning of therapy also had a positive effect on all outcomes. Non-forensic clients had a higher amount of responsivity associated resources than forensic clients during treatment. The limitations of these results and their implications for further research and prevention approaches are discussed.

Risk Factors for Sexual Offending in Self-Referred Men With Pedophilic Disorder: A Swedish Case-Control Study

Background

The risk of child sexual abuse among non-forensic, non-correctional patients with Pedophilic Disorder (PD) is largely unknown.

Methods

We recruited a consecutive sample of 55 help-seeking, non-correctional adult men diagnosed with DSM-5 PD at a university-affiliated sexual medicine outpatient unit in Sweden. PD participants were compared with 57 age-matched, non-clinical control men on four literature-based dynamic risk domains and self-rated child sexual abuse risk.

Results

PD participants scored higher than controls on all tested domains (0-3 points); expectedly so for pedophilic attraction (2.5 vs. 0.0, Cohen's d = 2.40, 95% confidence interval (CI): [1.91-2.89]), but also for sexual preoccupation (1.6 vs. 1.0, d = 1.11, 95% CI: [0.71-1.51]), impaired self-regulation (1.4 vs. 1.0, d = 0.44, 95% CI: [0.06 to 0.81]), impaired cognitive empathy and antisocial traits (0.9 vs. 0.1, d = 1.18, 95% CI: [0.78-1.59]), and self-rated child sexual abuse risk (1.0 vs. 0.0, d = 1.56, 95% CI: [1.13-1.98]). When summarizing all five domains into a pre-specified composite score (0-15 points), PD subjects scored substantially higher than matched control men (7.5 vs. 2.1, d = 2.12, 95% CI: [1.65-2.59]). Five (9%) PD participants self-reported any previous conviction for a contact child sexual offense and eight (15%) for possession of child sexual abuse material or non-contact sexual offending (adult or child victim). Eighteen subjects (34%) acknowledged past week, child-related sexual behaviors.

Conclusion

Self-referred, help-seeking men with PD scored higher (small to very large effect sizes) than non-clinical control men on psychiatric measures of dynamic risk of child sexual abuse suggested in prior research with correctional samples diagnosed with PD. Our findings, including the composite risk measure, might inform clinical practice, but needs validation against actual sexual offending behavior.

The Effects of Acute Transcranial Direct Current Stimulation on Attentional Bias in Pedophilic Disorder: A Preregistered Pilot Study

OBJECTIVES

Individuals with pedophilic disorder (PD) experience personal and interpersonal difficulties and are at risk of sexually offending against children. As such, innovative and empirically validated treatments are needed. Recent studies have indicated that men who have sexually offended against children (SOC) with PD display an automatic attention bias for child-related stimuli as well as reduced activity in the dorsolateral prefrontal cortex (dlPFC), a brain area involved in cognitive control, including control over sexual arousal. In this preregistered pilot study, we are the first to investigate whether acutely increasing prefrontal activity could reduce the putative pedophilic attention bias.

MATERIALS AND METHODS

We delivered a single 20-min session of active anodal versus sham transcranial direct current stimulation (tDCS) over the left dlPFC to 16 SOC with PD and 16 matched healthy controls, while they performed a task requiring controlled attention to computer-generated images of clothed and nude children and adults. We collected responses unobtrusively by recording eye movements.

RESULTS

Our results did not support the presence of the expected automatic attention bias across outcome measures. Nonetheless, we found a response facilitation with child targets in patients and, unexpectedly, in controls, likely due to unwanted salience effects. Active versus sham tDCS reduced this bias across groups, as indicated by a significant group*condition interaction (p = 0.04). However, no attentional bias and no tDCS effects on attentional responses to child and adult images emerged following tDCS.

CONCLUSIONS

These results suggest enhanced cognitive control in response to salient stimuli during active tDCS. Thus, to assist future studies on neuromodulation in PD, we provide suggestions for design improvement.

The Absence of Evidence-Based Practices (EBPs) in the Treatment of Sexual Abusers: Recommendations for Moving Toward the Use of a True EBP Model

Despite a continued evolution of the field of sexual abuser treatment toward a distinct professional discipline with clinicians using an increasing variety of treatment approaches, there is no consensus regarding the strength of our various clinical interventions as evidence-based practices (EBPs). This article provides a brief history of the development and goals of EBPs in medicine and mental health, and a review of the earnest efforts of researchers within the field to establish treatment approaches with sexual abusers as evidence-based. An appraisal of the current status of EBP's with sexual abusers is provided. Although there have been improvements in the methodological quality of treatment outcome research with sexual abusers, divergent opinions about treatment effectiveness remain, and the field has not yet agreed on a system or set of criteria for what constitutes "evidence." We contend that clinical practice has been influenced as much, or more, by new paradigms that are intuitively meaningful and perceived as needed than it has by what has been determined to be scientifically efficacious. This trend and other processes in our field that seem to be slowing the development of EBPs with sexual abusers are discussed. Recommendations for conducting evidence-based reviews and moving the field of sexual abuser treatment toward the use of a true EBP model are provided.

Effect of Gonadotropin-Releasing Hormone Antagonist on Risk of Committing Child Sexual Abuse in Men With Pedophilic Disorder: A Randomized Clinical Trial

IMPORTANCE

Evidence-based treatments from randomized clinical trials for pedophilic disorder are lacking.

OBJECTIVE

To determine whether a gonadotropin-releasing hormone antagonist reduces dynamic risk factors for committing child sexual abuse.

DESIGN, SETTING, AND PARTICIPANTS

This academically initiated, double-blind, placebo-controlled, parallel-group, phase 2 randomized clinical trial was conducted at the ANOVA center in Stockholm, Sweden, from March 1, 2016, to April 30, 2019. Individuals who contacted PrevenTell, the national telephone helpline for unwanted sexuality, were recruited. Eligible participants were men seeking help aged 18 to 66 years with a pedophilic disorder diagnosis and no contraindications to the intervention. The primary end point was assessed by intent-to-treat analysis.

INTERVENTIONS

Randomization to receive either 2 subcutaneous injections of 120 mg of degarelix acetate or equal volume of placebo.

MAIN OUTCOMES AND MEASURES

The primary end point was the mean change between baseline and 2 weeks in the composite risk score of 5 domains of child sexual abuse ranging from 0 to 15 points; each domain could be rated from 0 to 3 points. Secondary end points included efficacy at 2 and 10 weeks as measured by the composite score, each risk domain, quality of life, self-reported effects, and adverse events.

RESULTS

A total of 52 male participants (mean [SD] age, 36 [12] years) were randomized to receive either degarelix (n = 25; with 1 withdrawal) or placebo (n = 26). At 2 weeks, the composite risk score decreased from 7.4 to 4.4 for participants in the degarelix group and from 7.8 to 6.6 for the placebo group, a mean between-group difference of -1.8 (95% CI, -3.2 to -0.5; P = .01). A decrease was seen in the composite score at 10 weeks (-2.2 [95% CI, -3.6 to -0.7]) as well as in the domains of pedophilic disorder (2 weeks: -0.7 [95% CI, -1.4 to 0.0]; 10 weeks: -1.1 [95% CI, -1.8 to -0.4]) and sexual preoccupation (2 weeks: -0.7 [95% CI, -1.2 to -0.3]; 10 weeks: -0.8 [95% CI, -1.3 to -0.3]) in the degarelix group compared with the placebo group. No difference was seen for the domains of self-rated risk (2 weeks: -0.4 [95% CI, -0.9 to 0.1]; 10 weeks: -0.5 [95% CI, -1 to 0.0]), low empathy (2 weeks: 0.2 [95% CI, -0.3 to 0.6]; 10 weeks: 0.2 [95% CI, -0.2 to 0.6]), and impaired self-regulation (2 weeks: -0.0 [95% CI, -0.7 to 0.6]; 10 weeks: 0.1 [95% CI, -0.5 to 0.8]), or quality of life (EuroQol 5 Dimensions questionnaire index score, 2 weeks: 0.06 [95% CI, -0.00 to 0.12], and 10 weeks: 0.04; 95% CI, -0.02 to 0.10; EuroQol visual analog scale, 2 weeks: 0.6 [95% CI, -9.7 to 10.9], and 10 weeks: 4.2 [95% CI, -6.0 to 14.4]). Two hospitalizations occurred from increased suicidal ideation, and more injection site reactions (degarelix: 22 of 25 [88%]; placebo: 1 of 26 [4%]) and hepatobiliary enzyme level elevations were reported by participants who received degarelix (degarelix: 11 of 25 [44%]; placebo: 2 of 26 [8%]). Among the 26 participants randomized to receive degarelix, 20 (77%) experienced positive effects (eg, improved attitude or behavior) on sexuality and 23 (89%) reported adverse effects on the body.

CONCLUSION AND RELEVANCE

This trial found that degarelix reduced the risk score for committing child sexual abuse in men with pedophilic disorder 2 weeks after initial injection, suggesting use of the drug as a rapid-onset treatment option. Further studies are warranted into the effects and long-term adverse effects of hormone deficiency.

TRIAL REGISTRATION

EU Clinical Trials Register Identifier: 2014-000647-32.

A Long-Term Outcome Assessment of the Effects on Subsequent Reoffense Rates of a Prison-Based CBT/RNR Sex Offender Treatment Program With Strength-Based Elements

This article describes an evaluation of the effects of an early version (1991-2001) of Rockwood's prison-based Cognitive Behavioral Therapy/Risk-Needs-Responsivity (CBT/RNR) sex offender program that had emerging elements of a strength-based approach. This program was implemented under contract to Correctional Service of Canada (CSC) and continued to evolve in response to emerging evidence until it closed in 2013. Thus, the program as evaluated here did not involve a fixed approach as did the comparison CSC program (hereafter referred to as SOTP). Long-term reoffense data, from Rockwood's program (n = 579), were compared with SOTP (n = 625) and with a group of untreated men (n = 107) sentenced for sex offenses. A modified brief actuarial risk scale (BARS-M) was used to control for baseline risk among the three groups, along with additional controls for age at release, victim type, and individual differences in the length of long-term follow-up period. Both treatment groups displayed lower rates of both sexual and violent reoffending when compared with the no-treatment offenders. Overall, the Rockwood program generated the lowest recidivism rates. The results demonstrate that prison-based sex offense-specific treatment can be effective. We discuss the strengths and limitations of the current design through the Collaborative Outcome Data Committee's guidelines.

The Virtuous Circle: A Grounded Theory Exploration of the Good Lives Model

Sexual offenses evoke strong emotional responses and frequently elicit demands from society that offenders be indefinitely incarcerated or treated until they are deemed safe, which may impact the provision of therapeutic treatment for offenders. However, in recent years, there has been a proposal to move toward a positive, strengths-based treatment approach, namely the Good Lives Model (GLM). The present study used semi-structured interviews and a constructivist grounded theory approach to examine the experience of 13 men who were voluntarily engaging in or had completed a GLM community-based treatment program. A conceptual model emerged which outlines the process the men underwent, the factors they identified as crucial for change, and the perceived gains. The model extends previous work by exploring the process from the clients' perspective. Implications for future research, prevention, and treatment are discussed.

The Intensity and Timing of Sex Offender Treatment

Current evidence about the impact of specialized sex offender treatment on reoffending remains inconsistent, drawing attention to the need to focus more on those program characteristics that potentially moderate outcome. This review considers current professional perspectives and evidence on two defining aspects of treatment: its intensity and timing. It is concluded that insufficient evidence currently exists to articulate best practice in this area and there is a pressing need to collect empirical evidence about the effectiveness of different intensity treatments offered at different stages of sentence.

[Standards for treatment in forensic committment according to § 63 and § 64 of the German criminal code : Interdisciplinary task force of the DGPPN]

People who have been convicted of a crime due to a severe mental disorder and continue to be dangerous as a result of this disorder may be placed in a forensic psychiatric facility for improvement and safeguarding according to § 63 and § 64 of the German Criminal Code (StGB). In Germany, approximately 9000 patients are treated in clinics for forensic psychiatry and psychotherapy on the basis of § 63 of the StGB and in withdrawal centers on the basis of § 64 StGB. The laws for treatment of patients in forensic commitment are passed by the individual States, with the result that even the basic conditions differ in the individual States. While minimum requirements have already been published for the preparation of expert opinions on liability and legal prognosis, consensus standards for the treatment in forensic psychiatry have not yet been published. Against this background, in 2014 the German Society for Psychiatry and Psychotherapy, Psychosomatics and Neurology (DGPPN) commissioned an interdisciplinary task force to develop professional standards for treatment in forensic psychiatry. Legal, ethical, structural, therapeutic and prognostic standards for forensic psychiatric treatment should be described according to the current state of science. After 3 years of work the results of the interdisciplinary working group were presented in early 2017 and approved by the board of the DGPPN. The standards for the treatment in the forensic psychiatric commitment aim to initiate a discussion in order to standardize the treatment conditions and to establish evidence-based recommendations.

Do Sex Offenders Have Higher Levels of Testosterone? Results From a Meta-Analysis

The purpose of the current study is to review the available scientific evidence on the relationship between testosterone and sexual aggression. A systematic search for all primary studies comparing basal testosterone levels in sex offenders and non-sex offenders was undertaken across 20 electronic databases using an explicit search strategy and inclusion/exclusion criteria. A total of seven studies were identified and 11 effect sizes were computed; effects were pooled using both fixed and random effects meta-analysis models. Although individual study findings present a mix of results wherein sex offenders have higher or lower baseline levels of testosterone than non-sex offenders, pooled results indicate no overall difference between groups. Moderators of the analyses suggest possibly lower rates of testosterone in child molesters than controls; however, results are dependent on study weighting. Limitations, policy implications with respect to chemical castration laws, and future directions for research are discussed.

A Longitudinal Outcome Evaluation of a Prison-Based Sex Offender Treatment Program

Sex offender outcome studies continue to produce mixed results. A common critique of these studies is their lack of methodological rigor. This study attempts to address this critique by adhering to the standards established by the Collaborative Outcome Data Committee (CODC) aimed at increasing the quality and confidence in outcome studies. We examined recidivism outcomes for a sample of formerly incarcerated sex offenders who participated in a state prison-based cognitive-behavioral-skills-based treatment program. We used propensity score analysis to compare treatment participants with a matched sample of non-participants. The final sample post-matching ( n = 512) was observed for a minimum of 4 years and a maximum of 14 years. Using survival analysis, findings indicate that there were no differences in recidivism rates between treatment participants and non-participants in sexual or violent crimes. However, participants demonstrated significantly lower rates of recidivism for non-violent crimes. We discuss strengths, limitations of the study, and implications of these findings.

Adults with Pedophilic Interests in the United States: Current Practices and Suggestions for Future Policy and Research

Adults with pedophilic interests are often viewed by the public as a homogenous subgroup based on what we know from those who sexually offend against children. The stigma associated with child sexual abuse may serve to deter such behaviors but may also interfere with the person's stability and willingness to seek assistance in managing pedophilic interests. This article contrasts the sex offender response and prevention efforts typically employed in the U.S. (i.e., containment, registration, and notification policies and public education programs) with treatment programs aimed at preventing child sexual abuse in Germany, Belgium, and Canada. Five major areas are identified that should be further examined with regard to implementing preventative outreach and treatment programs in the U.S.: barriers to outreach and treatment programs, how to expand or reframe current preventative educational programs, implementation of such programs in light of current mandating reporting policies, promising treatment approaches for pedophilic interests among non-offenders, and ethical concerns relevant to preventative psychological interventions.

Treatment Experiences of Child Sexual Offenders in Norway: A Qualitative Study

This article is an attempt at gaining a better understanding of treatment of adults who have committed sexual offenses against children. In this study we aimed to explore what people who have committed sexual offenses against children find useful in therapy. The study was approached using qualitative methodology, and information was collected through semistructured interviews. Four male child sexual offenders were recruited from the Institute of Clinical Sexology and Therapy in Oslo, Norway. The informants were interviewed with a focus on what factors they found useful in therapy. Through an explorative, thematic analysis, five main themes were found. These themes include: "Why I started going to therapy," "Why did I do it?" "Therapy as life," "Previous and current relationships with others," and "I lived in a fantasy world where everything was okay." Based on this study and other earlier studies and theories it appears that the previously mentioned themes recur as important contributory factors in the treatment of child sexual offenders.

Paraphilic Sexual Interests and Sexually Coercive Behavior: A Population-Based Twin Study

Prior research with selected clinical and forensic samples suggests associations between paraphilic sexual interests (e.g., exhibitionism and sexual sadism) and sexually coercive behavior. However, no study to date used a large, representative and genetically informative population sample to address the potential causal nature of this association. We used self-report data on paraphilic and sexually coercive behavior from 5990 18- to 32-year-old male and female twins from a contemporary Finnish population cohort. Logistic regression and co-twin control models were employed to examine if paraphilic behaviors were causally related to coercive behavior or if suggested links were confounded by familial (genetic or common family environment) risk factors. Results indicated that associations between four out of five tested paraphilic behaviors (exhibitionism, masochism, sadism, and voyeurism, respectively) and sexually coercive behavior were moderate to strong. Transvestic fetishism was not independently associated with sexual coercion. Comparisons of twins reporting paraphilic behavior with their paraphilic behavior-discordant twin further suggested that associations were largely independent of shared genetic and environmental confounds, consistent with a causal association. In conclusion, similar to previously reported predictive effects of paraphilias on sexual crime recidivism, paraphilic behavior among young adults in the general population increases sexual offending risk. Further, early identification of paraphilic interest and preventive interventions with at-risk individuals might also reduce perpetration of first-time sexual violence.

Juvenile Sex Offenders

Sexual offending by juveniles accounts for a sizable percentage of sexual offenses, especially against young children. In this article, recent research on female juvenile sex offenders (JSOs), risk factors for offending in juveniles, treatment, and the ways in which these youth may differ from general delinquents will be reviewed. Most JSOs do not go on to develop paraphilic disorders or to commit sex offenses during adulthood, and as a group, they are more similar to nonsexual offending juvenile delinquents than to adult sex offenders. Recent research has elucidated some differences between youth who commit sex offenses and general delinquents in the areas of atypical sexual interests, the use of pornography, and early sexual victimization during childhood.

Parent-Focused Prevention of Child Sexual Abuse

Child sexual abuse (CSA) is a serious public health issue. Current after-the-fact approaches to treating victims and punishing offenders are not adequate to address a problem of this magnitude; development and rigorous evaluation of CSA prevention strategies are critical. We propose that CSA prevention efforts should target parents of young children. Parents have been neglected as a focus of CSA prevention; they merit attention given their potential to improve children's safety via effective communication and monitoring. This paper provides an overview of current strategies for reducing CSA prevalence and their limitations, presents a rationale for parent-focused CSA prevention, and discusses considerations pertinent to development of an effective parent-focused approach. Parent-focused CSA prevention offers potential as a public health approach to prevention of CSA, and it is time that we devote resources toward developing and studying this important area.

What Sexual Recidivism Rates Are Associated With Static-99R and Static-2002R Scores?

Empirical actuarial risk tools are routinely used to assess the recidivism risk of adult sexual offenders. Compared with other forms of risk assessment, one advantage of actuarial risk tools is that they provide recidivism rate estimates. Previous research, however, suggests that there is considerable variability in the recidivism rates associated with the most commonly used sexual offender risk assessment tools (Static-99/R, Static-2002/R). The current study examined the extent to which the variability in the recidivism rates across 21 Static-99R studies (N = 8,805) corresponded to the normative groups proposed by the STATIC development group (routine, treatment, high risk/high need). We found strong evidence that routine (i.e., complete) samples were, on average, less likely to reoffend with a sexual offense than offenders in the high-risk/high-need samples (i.e., those explicitly preselected on risk-relevant variables external to STATIC scales). The differences between routine/complete and high-risk/high-need samples, however, were only consistently observed for offenders with low or moderate scores; for offenders with high STATIC scores, the 5-year sexual recidivism rates for these two groups were not meaningfully different. There was only limited evidence to support treatment samples as a distinct sample type; consequently, the use of separate normative tables for treatment samples is not recommended. The current results reinforce the value of regularly updating the norms for empirical actuarial risk tools. Options are discussed on how STATIC scores could be used to inform recidivism rates estimates in applied assessments.

Sexual offending runs in families: A 37-year nationwide study

BACKGROUND

Sexual crime is an important public health concern. The possible causes of sexual aggression, however, remain uncertain.

METHODS

We examined familial aggregation and the contribution of genetic and environmental factors to sexual crime by linking longitudinal, nationwide Swedish crime and multigenerational family registers. We included all men convicted of any sexual offence (N = 21,566), specifically rape of an adult (N = 6131) and child molestation (N = 4465), from 1973 to 2009. Sexual crime rates among fathers and brothers of sexual offenders were compared with corresponding rates in fathers and brothers of age-matched population control men without sexual crime convictions. We also modelled the relative influence of genetic and environmental factors to the liability of sexual offending.

RESULTS

We found strong familial aggregation of sexual crime [odds ratio (OR) = 5.1, 95% confidence interval (CI) = 4.5-5.9] among full brothers of convicted sexual offenders. Familial aggregation was lower in father-son dyads (OR = 3.7, 95% CI = 3.2-4.4) among paternal half-brothers (OR = 2.1, 95% CI = 1.5-2.9) and maternal half-brothers (OR = 1.7, 95% CI = 1.2-2.4). Statistical modelling of the strength and patterns of familial aggregation suggested that genetic factors (40%) and non-shared environmental factors (58%) explained the liability to offend sexually more than shared environmental influences (2%). Further, genetic effects tended to be weaker for rape of an adult (19%) than for child molestation (46%).

CONCLUSIONS

We report strong evidence of familial clustering of sexual offending, primarily accounted for by genes rather than shared environmental influences. Future research should possibly test the effectiveness of selective prevention efforts for male first-degree relatives of sexually aggressive individuals, and consider familial risk in sexual violence risk assessment.

The World Federation of Societies of Biological Psychiatry (WFSBP) guidelines for the treatment of adolescent sexual offenders with paraphilic disorders

The primary aim of these guidelines was to evaluate the role of pharmacological agents in the treatment of adolescents with paraphilic disorders who are also sexual offenders or at-risk of sexual offending. Psychotherapeutic and psychosocial treatments were also reviewed. Adolescents with paraphilic disorders specifically present a different therapeutic challenge as compared to adults. In part, the challenge relates to adolescents being in various stages of puberty and development, which may limit the use of certain pharmacological agents due to their potential side effects. In addition, most of the published treatment programmes have used cognitive behavioural interventions, family therapies and psychoeducational interventions. Psychological treatment is predicated in adolescents on the notion that sexually deviant behaviour can be controlled by the offender, and that more adaptive behaviours can be learned. The main purposes of these guidelines are to improve the quality of care and to aid physicians in their clinical decisions. These guidelines brought together different expert views and involved an extensive literature research. Each treatment recommendation was evaluated and discussed with respect to the strength of evidence for efficacy, safety, tolerability and feasibility. An algorithm is proposed for the treatment of paraphilic disorders in adolescent sexual offenders or those who are at risk.

Evaluation of multisystemic therapy pilot services in Services for Teens Engaging in Problem Sexual Behaviour (STEPS-B): study protocol for a randomized controlled trial

BACKGROUND

Clinically effective and cost-effective methods for managing problematic sexual behaviour in adolescents are urgently needed. Adolescents who show problematic sexual behaviour have a range of negative psychosocial outcomes, and they and their parents can experience stigma, hostility and rejection from their community. Multisystemic therapy (MST) shows some evidence for helping to reduce adolescent sexual reoffending and is one of the few promising interventions available to young people who show problematic sexual behaviour. This paper describes the protocol for Services for Teens Engaging in Problem Sexual Behaviour (STEPS-B), a feasibility trial of MST for problem sexual behaviour (MST-PSB) in antisocial adolescents at high risk of out-of-home placement due to problematic sexual behaviour.

METHODS/DESIGN

Eighty participants and their families recruited from five London boroughs will be randomized to MST-PSB or management as usual with follow-up to 20 months post-randomization. The primary outcome is out-of-home placement at 20 months. Secondary outcomes include sexual and non-sexual offending rates and antisocial behaviours, participant well-being, educational outcomes and total service and criminal justice sector costs. Feasibility outcomes include mapping the clinical service pathways needed to recruit adolescents displaying problematic sexual behaviour, acceptability of a randomized controlled trial to the key systems involved in managing these adolescents, and acceptability of the research protocol to young people and their families. Data will be gathered from police computer records, the National Pupil Database and interviews and self-report measures administered to adolescents and parents and will be analysed on an intention-to-treat basis.

DISCUSSION

The STEPS-B feasibility trial aims to inform policymakers, commissioners of services and professionals about the potential for implementing MST-PSB as an intervention for adolescents showing problem sexual behaviour. Should MST-PSB show potential, STEPS-B will determine what would be necessary to implement the programme more fully and at a scale that would warrant a full trial.

TRIAL REGISTRATION

ISRCTN28441235 (registered 25 January 2012).

Deep brain stimulation to reduce sexual drive

To date there are few treatment options to reduce high sexual drive or sexual urges in paraphilic patients with a risk for sexual offending. Pharmacological therapy aims to reduce sexual drive by lowering testosterone at the cost of severe side effects. We hypothesize that high sexual drive could also be reduced with deep brain stimulation (DBS) of circuits that generate sexual drive. This approach would help to avoid systemic side effects of antiandrogenic drug therapies. So far the best investigated target to reduce sexual drive is the ventromedial hypothalamus, which was lesioned unilaterally and bilaterally by stereotaxic interventions in paraphilic patients in the 1970s. Here, we discuss DBS as a treatment strategy in patients with severe paraphilic disorders with a serious risk of sexual offending. There are profound ethical and practical issues associated with DBS treatment of paraphilic patients that must be solved before considering such a treatment approach.

Pharmacological interventions for those who have sexually offended or are at risk of offending

BACKGROUND

Sexual offending is a serious social problem, a public health issue, and a major challenge for social policy. Victim surveys indicate high incidence and prevalence levels and it is accepted that there is a high proportion of hidden sexual victimisation. Surveys report high levels of psychiatric morbidity in survivors of sexual offences.Biological treatments of sex offenders include antilibidinal medication, comprising hormonal drugs that have a testosterone-suppressing effect, and non-hormonal drugs that affect libido through other mechanisms. The three main classes of testosterone-suppressing drugs in current use are progestogens, antiandrogens, and gonadotropin-releasing hormone (GnRH) analogues. Medications that affect libido through other means include antipsychotics and serotonergic antidepressants (SSRIs).

OBJECTIVES

To evaluate the effects of pharmacological interventions on target sexual behaviour for people who have been convicted or are at risk of sexual offending.

SEARCH METHODS

We searched CENTRAL (2014, Issue 7), Ovid MEDLINE, EMBASE, and 15 other databases in July 2014. We also searched two trials registers and requested details of unidentified, unpublished, or ongoing studies from investigators and other experts.

SELECTION CRITERIA

Prospective controlled trials of antilibidinal medications taken by individuals for the purpose of preventing sexual offences, where the comparator group received a placebo, no treatment, or 'standard care', including psychological treatment.

DATA COLLECTION AND ANALYSIS

Pairs of authors, working independently, selected studies, extracted data, and assessed the risk of bias of included studies. We contacted study authors for additional information, including details of methods and outcome data.

MAIN RESULTS

We included seven studies with a total of 138 participants, with data available for 123. Sample sizes ranged from 9 to 37. Judgements for categories of risk of bias varied: concerns were greatest regarding allocation concealment, blinding of outcome assessors, and incomplete outcome data (dropout rates in the five community-based studies ranged from 3% to 54% and results were usually analysed on a per protocol basis).Participant characteristics in the seven studies were heterogeneous, but the vast majority had convictions for sexual offences, ranging from exhibitionism to rape and child molestation.Six studies examined the effectiveness of three testosterone-suppressing drugs: cyproterone acetate (CPA), ethinyl oestradiol (EO), and medroxyprogesterone acetate (MPA); a seventh evaluated two antipsychotics (benperidol and chlorpromazine). Five studies were placebo-controlled; in two, MPA was administered as an adjunctive treatment to a psychological therapy (assertiveness training or imaginal desensitisation). Meta-analysis was not possible due to heterogeneity of interventions, comparators, study designs, and other issues. The quality of the evidence overall was poor. In addition to methodological issues, much evidence was indirect.

PRIMARY OUTCOME

recividism. Two studies reported recidivism rates formally. One trial of intramuscular MPA plus imaginal desensitisation (ID) found no reports of recividism at two-year follow-up for the intervention group (n = 10 versus one relapse within the group treated by ID alone). A three-armed trial of oral MPA, alone or in combination with psychological treatment, reported a 20% rate of recidivism amongst those in the combined treatment arm (n = 15) and 50% of those in the psychological treatment only group (n = 12). Notably, all those in the 'oral MPA only' arm of this study (n = 5) dropped out immediately, despite treatment being court mandated.Two studies did not report recidivism rates as they both took place in one secure psychiatric facility from which no participant was discharged during the study, whilst another three studies did not appear directly to measure recividism but rather abnormal sexual activity alone.

SECONDARY OUTCOMES

The included studies report a variety of secondary outcomes. Results suggest that the frequency of self reported deviant sexual fantasies may be reduced by testosterone-suppressing drugs, but not the deviancy itself (three studies). Where measured, hormonal levels, particularly levels of testosterone, tended to correlate with measures of sexual activity and with anxiety (two studies). One study measured anxiety formally; one study measured anger or aggression. Adverse events: Six studies provided information on adverse events. No study tested the effects of testosterone-suppressing drugs beyond six to eight months and the cross-over design of some studies may obscure matters (given the 'rebound effect' of some hormonal treatments). Considerable weight gain was reported in two trials of oral MPA and CPA. Side effects of intramuscular MPA led to discontinuation in some participants after three to five injections (the nature of these side effects was not described). Notable increases in depression and excess salivation were reported in one trial of oral MPA. The most severe side effects (extra-pyramidal movement disorders and drowsiness) were reported in a trial of antipsychotic medication for the 12 participants in the study. No deaths or suicide attempts were reported in any study. The latter is important given the association between antilibidinal hormonal medication and mood changes.

AUTHORS' CONCLUSIONS

We found only seven small trials (all published more than 20 years ago) that examined the effects of a limited number of drugs. Investigators reported issues around acceptance and adherence to treatment. We found no studies of the newer drugs currently in use, particularly SSRIs or GnRH analogues. Although there were some encouraging findings in this review, their limitations do not allow firm conclusions to be drawn regarding pharmacological intervention as an effective intervention for reducing sexual offending.The tolerability, even of the testosterone-suppressing drugs, was uncertain given that all studies were small (and therefore underpowered to assess adverse effects) and of limited duration, which is not consistent with current routine clinical practice. Further research is required before it is demonstrated that their administration reduces sexual recidivism and that tolerability is maintained.It is a concern that, despite treatment being mandated in many jurisdictions, evidence for the effectiveness of pharmacological interventions is so sparse and that no RCTs appear to have been published in two decades. New studies are therefore needed and should include trials with larger sample sizes, of longer duration, evaluating newer medications, and with results stratified according to category of sexual offenders. It is important that data are collected on the characteristics of those who refuse and those who drop out, as well as those who complete treatment.

Potential implications of research on genetic or heritable contributions to pedophilia for the objectives of criminal law

In recent years, there has been increasing scientific research on possible genetic or heritable influences to the etiology of pedophilia, driven by national and public concerns about better understanding the disorder in order to reduce children's vulnerabilities to pedophilic and child sex offenders. This research has corresponded to growing academic dialogue on how advances in genetic research, especially concerning the causes and development of particular mental disorders or behaviors, may affect traditional practices of criminal law and how the justice system views, manages, and adjudicates different types of criminal behavior and offenders. This paper strives to supplement this dialogue by exploring several of the many possible effects and implications of research surrounding genetic or heritable contributions to pedophilia for the five widely accepted objectives that enforce and regulate the punishment of criminal law. These include retribution, incapacitation, deterrence, rehabilitation, and restoration. Although still currently in early stages, genetic and heritability research on the etiology of pedophilia may have the potential moving forward to influence the current and established punitive methods and strategies of how the justice system perceives, adjudicates, regulates, and punishes pedophilic and sex offenders, as well as how to best prevent sexual offending against children by pedophilic offenders in the future.