Conditions /

Complex Trauma / Developmental Trauma

Not a DSM-5-TR diagnosis. ICD-11 category 6B41 (Complex post-traumatic stress disorder); in DSM terms it overlaps PTSD and the personality disorders

By Expert review not yet recorded Updated

Emotional dysregulation, negative self-concept, and relational difficulties following prolonged or repeated trauma, often in childhood. ICD-11 recognizes Complex PTSD; DSM-5-TR does not yet have a separate diagnosis. Phase-based treatment is standard.

Prevalence: Not captured by DSM-based surveys. ICD-11 CPTSD pools at roughly 4% in general-population samples from non-war-exposed high-income countries, against about 2% for ICD-11 PTSD; substantially higher in trauma-exposed and clinical samples

Clinical Picture

Complex PTSD, proposed by Judith Herman and now included in ICD-11 though not DSM-5-TR, captures what single-incident PTSD criteria miss: the pervasive impact of chronic, relational trauma on identity, emotion regulation, and the capacity for connection. Clients with complex trauma often present not with discrete flashbacks but with diffuse emotional dysregulation, chronic shame, relational chaos, and a fractured sense of self. Standard trauma-processing protocols may be insufficient or even destabilizing if applied before adequate stabilization and relational safety are established.

Treatment Considerations

Phase-based treatment (stabilization → processing → integration) is the dominant clinical framework, though debate continues about how long stabilization should last and whether some clients are 'over-stabilized' at the expense of ever doing processing work. Modalities that explicitly address developmental and relational dimensions (NARM, Sensorimotor Psychotherapy, IFS, relational psychoanalysis) tend to have clinical communities with deep expertise in complex trauma, even if their RCT evidence is thinner than the manualized single-incident protocols. The therapeutic relationship is especially important here because the core wound is relational.

Approaches and Evidence

Of 37 associated approaches, 1 have completed assessments for this topic, 0 have source checks awaiting assessment, and 36 have neither recorded yet. Each completed assessment states its population and rationale; source checks alone do not establish effectiveness. These categories describe different findings and review stages; they are not a ranking of treatments. 3 frameworks are shown separately.

Randomized studies (1)

These assessments describe randomized studies in the stated population. Randomized studies may include pilot or null findings; this label alone does not establish benefit.

Cognitive-Behavioral

Skills Training in Affective and Interpersonal Regulation

Marylene Cloitre · 2002

Reviewed population: Adults aged 18–65 with CAPS-5 PTSD after repeated childhood sexual or physical abuse; eight STAIR sessions followed by 16 EMDR sessions, compared with 16 immediate EMDR sessions. Entry did not require a complex-PTSD diagnosis.

Van Vliet et al. (2021) reports 135 randomized adults; analyses used 121 after 11 withdrawals before treatment and three delayed eligibility exclusions. Only 28.9% met SIDES complex-PTSD criteria at baseline; this was not an ICD-11 diagnostic interview. Both groups improved, with no statistically significant endpoint advantages for adding STAIR through six months or in treatment dropout. Immediate EMDR showed faster early improvement in self-reported PTSD symptoms, interpersonal problems and post-traumatic cognitions. The authors found no need for a preparatory phase in this sample. The study was not an equivalence trial, did not test standalone STAIR and had no inactive control. Twice-weekly STAIR may have limited time to practise skills between sessions. Exclusions included ongoing abuse, acute suicidality requiring crisis intervention and screened substance misuse/dependence. These findings do not establish that every person with complex PTSD needs, or should avoid, preparation.

Reviewed

Assessment not yet completed (36)

No completed assessment or source check for this topic is recorded yet.

Psychedelic

EMBARK

Brennan / Belser · 2022

Somatic

Hakomi

Ron Kurtz · 1980

Somatic

Neurofeedback

Joe Kamiya / Barry Sterman / Joel Lubar · 1968

Associated Frameworks (3)

These are conceptual or research frameworks. They are not ranked as treatment evidence.

Cases Featuring Associated Approaches

These teaching cases share approach links with this topic. They may illustrate a different presenting concern.

Panic & Avoidance
Maya, 29, marketing manager
10 formulations
Men's Masked Depression
Marcus, 36, firefighter
8 formulations
Late-Life Depression & Meaning
Harold, 74, retired engineer
6 formulations
OCD & the Meaning of Obsessions
Nathan, 26, seminary student
6 formulations
Complex Relational Trauma
Darius, 34, Black veteran, currently unemployed
11 formulations
Dissociation & Fragmented Self
Lena, 41, social worker
6 formulations

Reading This Page

Why are these approaches listed with Complex Trauma / Developmental Trauma?

The catalogue associates 37 approaches and 3 frameworks with this topic. These links support learning and comparison; association alone is not a treatment recommendation or evidence of effectiveness.

How should I read the evidence assessments?

Assessments are specific to the population and scope stated on each card. They include a rationale, source links, and a review date. An overall review of an approach does not automatically apply to this condition, and a randomized-study label does not by itself mean that a study found benefit.

What does "Assessment not yet completed" mean?

A condition-specific assessment has not been recorded. Approaches with checked sources appear in a separate assessment-pending group; a checked source can support, oppose, or discuss an intervention without recommending it. Neither pending group means that no research exists or that the approach is ineffective. Frameworks are shown separately.

Sources and Review Scope

Source links and dates on assessment cards apply to the stated population and rationale. The clinical overview and prevalence text above are separate authored content; an approach's evidence label does not verify those statements. Recorded narrative notes and citations remain available on individual modality pages, with their review status identified. The bibliography provides further reading.