The Lancet Psychiatry (the-lancet-psychiatry)

Journal positioning

The Lancet Psychiatry is a Lancet specialty journal for high-impact clinical and population research across psychiatry and mental health — mood, anxiety, psychotic, and neurodevelopmental disorders, substance use, child and adolescent and old-age psychiatry, and the mental-health consequences of physical illness and social adversity. It favors practice- or policy-changing randomized trials, large cohorts, and population/epidemiological analyses with global reach and mental-health-systems relevance, with a strong emphasis on rigorous design, patient-important outcomes, and attention to stigma, equity, and lived experience. Small single-site studies, mechanistic neuroscience without a clinical or population endpoint, and underpowered intervention pilots are a weak fit and belong in a specialist psychiatry or neuroscience venue. This skill is a fit / venue-selection / re-framing aid; it is not clinical or regulatory advice and does not replace the journal's current instructions for authors. Before submitting, re-check the live The Lancet Psychiatry author instructions.

When to trigger

• The author names The Lancet Psychiatry for a psychiatry or mental-health clinical/population study and wants a fit/framing check.
• A trial or cohort must be re-framed around a globally relevant, practice- or policy-changing mental-health question.
• The author is choosing between The Lancet Psychiatry, JAMA Psychiatry, and a specialist psychiatry journal.
• The author needs the journal's reporting-guideline, registration, and desk-reject expectations for mental-health evidence.

Scope & topic fit

• Randomized trials of psychological, pharmacological, digital, and service-level interventions for mental disorders, with patient-important outcomes.
• Large prospective cohorts and high-quality observational studies on mental-disorder incidence, course, prognosis, and outcomes at scale.
• Population, epidemiological, and global-mental-health studies, including low- and middle-income settings and health-equity framing.
• Mental-health-services, policy, and implementation research with system-level relevance.
• Studies on the mental-health effects of physical illness, social adversity, and inequalities, and on stigma and lived experience, with rigorous methods.
• Systematic reviews and meta-analyses resolving a focused, clinically or policy consequential mental-health question.

Method & evidence bar

• Trials must be adequately powered with prespecified, patient-important primary outcomes (validated symptom or functioning measures, remission, quality of life); outcome-measure choice and blinding feasibility must be justified.
• The applicable reporting guideline and completed checklist are expected: CONSORT (incl. for non-pharmacological/psychological interventions) for trials, STROBE for observational studies, PRISMA for systematic reviews.
• Trials require prospective registration; the registration number, protocol, and statistical-analysis plan are expected; patient and public involvement is valued.
• Observational and epidemiological claims must address confounding, reverse causation, selection bias, and missing data; causal language must match the design.
• Effect estimates need confidence intervals and clinically meaningful (not only statistically significant) thresholds; generalizability across settings and cultures should be argued.
• Multi-site, international, and registry-scale evidence strengthens fit; underpowered single-site pilots rarely clear the bar.

Structure & house style

• Lancet specialty format with a structured summary and a Research in context / evidence-before-this-study panel; re-check current article types and limits on the live guide.
• The introduction frames the global clinical or policy gap in mental health; the discussion states the practice or policy consequence and limitations plainly.
• A CONSORT/STROBE/PRISMA flow diagram is expected where applicable; non-stigmatizing, person-first language and attention to lived experience are expected.
• The role of the funding source statement and a data-sharing statement are expected; appendices carry protocol, full statistical methods, and additional analyses.

Official-submission checklist

• Before giving submission-ready advice, read ../../resources/source-basis.md and ../../resources/official-source-map.md; start from the ICMJE/EQUATOR and Lancet anchors, then cite the current The Lancet Psychiatry page you checked.
• Search the live site for "The Lancet Psychiatry information for authors" and follow the current version.
• Re-check article types, structured-summary and Research in context format, and word/reference/figure limits.
• Confirm trial registration, the reporting checklist (CONSORT/STROBE/PRISMA), protocol/SAP, the role-of-funding-source statement, and data-sharing statement.
• Re-check IRB/ethics and consent (including capacity and vulnerable-population safeguards), ICMJE authorship and conflict-of-interest disclosure, funding, and AI-use disclosure.
• If the live official instructions conflict with this skill, the official instructions win.

Pre-submission self-check

• The study answers a globally relevant, practice- or policy-changing mental-health question.
• The primary outcome is prespecified, validated, and patient-important; the study is adequately powered.
• The correct reporting checklist (CONSORT/STROBE/PRISMA) is completed and attached.
• Trials are prospectively registered with the number in the manuscript; protocol/SAP provided.
• Confounding, reverse causation, and missing data are addressed; causal language matches the design.
• Ethics/consent (capacity, vulnerable populations), ICMJE disclosures, role-of-funding-source, and a data-sharing statement are prepared.

Common desk-reject triggers

• Underpowered single-site pilots or feasibility studies presented as definitive.
• Mechanistic neuroscience or neuroimaging with no clinical or population mental-health endpoint.
• Non-validated or idiosyncratic outcome measures without justification or clinical anchoring.
• Missing trial registration, protocol, or the required reporting checklist.
• Observational analyses with unaddressed reverse causation or overstated causal claims.
• Narrow or locally bounded scope without global or policy relevance; stigmatizing framing or language.

Re-routing decision

• JAMA Network family or US-centric clinical psychiatry framing → jama-psychiatry.
• Population mental-health research without a clinical/service endpoint and with broad public-health framing → the-lancet-public-health.
• Mental-health comorbidity of metabolic disease as the core contribution → the-lancet-diabetes-and-endocrinology.
• Mechanistic psychiatric neuroscience → a specialist psychiatry or neuroscience journal.
• Broad, practice-changing significance beyond psychiatry → general medicine (jama / NEJM / The Lancet in the natural-science bundle).

Output format

[Fit] High / Medium / Low (one-line reason)
[Target] The Lancet Psychiatry
[Specialty tags] <2–3 closest psychiatry/mental-health topics>
[Study design / reporting guideline] <RCT-CONSORT / cohort-STROBE / review-PRISMA>
[Method/evidence] <power, validated outcome, registration, generalizability — does it clear the practice/policy bar?>
[Top risk] <the single most likely reason for rejection>
[Official items to re-check] <article type / registration / checklist / role-of-funding / ethics / disclosures>
[Re-route suggestion] <if not a fit, a better-matched venue>