Clinical Gastroenterology and Hepatology Submission Guide

• Original Research Articles:

• 5,000 words maximum (excluding references, tables, figures)

• Abstract: 250 words, structured format required

• Maximum 6 tables and 6 figures combined

• References: Vancouver style, no limit but editors prefer focused citations

• Clinical relevance statement mandatory (added requirement since 2023)

• Brief Communications:

• 2,500 words including references

• 150-word unstructured abstract

• Maximum 3 display items (tables/figures)

• Perfect for proof-of-concept clinical studies

• Review Articles:

• 8,000 words maximum

• Must be commissioned or query editors first

• Systematic reviews and meta-analyses preferred over narrative reviews

• PRISMA compliance required for systematic reviews

• Technical specifications:

• Figures: 300 DPI minimum, TIFF or EPS format

• Tables: Word format, not embedded images

• Supplementary material: PDF format, clearly labeled

• Conflict of interest forms required for all authors before review begins

The submission system flags incomplete submissions automatically. Missing your clinical relevance statement will trigger immediate administrative return.

Submission caps: Original Research Articles cap at 5000 words main text excluding references, tables, figures, with up to 6 tables and 6 figures combined, a 250-word structured abstract, and a mandatory 250-word Clinical Relevance Statement (added 2023). Brief Communications cap at 2500 words including references with 3 display items. Review Articles cap at 8000 words. Supplementary materials accept files commonly up to 50 MB per upload.

• Day 0: Editorial Manager upload. The Editorial Manager submission portal portal accepts the package (manuscript, structured abstract, clinical relevance statement, ORCID identifiers, cover letter, conflicts of interest forms for all authors, funding statement, author contributions, data availability statement, reporting checklist matched to study type, suggested reviewers), runs Elsevier integrity checks, and routes to an AGA Editorial Board Senior Editor matching the GI or hepatology subfield.

• Days 1 to 10: First Senior Editor read. The Senior Editor evaluates clinical utility for GI practice, methodological rigor, and whether the clinical relevance statement actually connects to the data. Preclinical-only papers get desk-rejected within 7 to 10 days.

• Days 10 to 56: Peer review. Two or three reviewers spanning GI clinical practice, hepatology, and biostatistics. Reviewer reports return on a 4 to 8 week cadence.

• Days 56 to 90: First editorial decision. Major revision is the most common outcome for papers that pass desk review.

• Days 90 to 180: Revision rounds and publication. Elsevier production typically pushes accepted Original Research Articles online within 4 to 6 weeks of acceptance.

Administrative screening usually catches formatting gaps, missing forms, and obvious scope mismatches first.

The more important practical point is that early editorial handling is heavily driven by clinical relevance. Papers that do not make the patient-care implication clear tend to stall or fail early, even if the underlying science is competent.

Peer review timing varies with article type, reviewer matching, and editorial load. Revision windows are typically structured enough that you should plan for a real revision cycle rather than assuming a one-pass acceptance.

The right mindset is not to optimize for a promised calendar. It is to make the paper easy for an editor to classify as clinically important, methodologically sound, and ready for GI clinicians to care about.

Before submitting to Clinical Gastroenterology and Hepatology, a Clinical Gastroenterology and Hepatology manuscript fit check identifies whether the package meets the editorial bar before you commit to the submission.

• Before you start: Register in the CGH Editorial Manager submission portal at Editorial Manager submission portal. The system requires institutional affiliation verification, which can take 24-48 hours.

• Step 1: Manuscript preparation

Format your manuscript as a single Word document: title page, abstract, main text, references, figure legends, tables. Don't embed figures in the text. Upload figures separately as high-resolution files.

• Step 2: Required documents checklist

• Cover letter addressing clinical relevance

• Clinical relevance statement (separate 250-word document)

• Conflict of interest forms for all authors

• Copyright transfer agreement

• STROBE, CONSORT, or PRISMA checklist (when applicable)

• Step 3: Portal submission

Login to ScholarOne. Select "Author Center," then "Click here to submit a new manuscript." The system walks through six screens: manuscript details, authors, file upload, review preferences, validation, and confirmation.

• Critical portal details:

• Article type selection affects word limits and review criteria

• Keywords: choose from journal's controlled vocabulary

• Suggested reviewers: provide 3-4 with full contact information

• Opposed reviewers: you can exclude up to 2 people with justification

• Step 4: Cover letter essentials

Your cover letter should be 300-400 words addressing: why CGH is the right venue, clinical significance of findings, and brief methods summary. Don't rehash the abstract. Focus on fit and impact.

• Step 5: Final validation

The portal validates file formats, word counts, and required documents. Fix any red-flag errors before submitting. Yellow warnings are advisory but worth addressing.

Submission confirmation email arrives within 30 minutes. If you don't receive it, check your spam folder and portal status.

• Common submission errors:

• Forgetting clinical relevance statement (automatic return)

• Wrong file formats for figures (delays processing)

• Incomplete author information (stops review assignment)

• Generic cover letters that don't mention CGH specifically

• Clinical Gastroenterology and Hepatology

Best for: Clinical trials, outcomes research, diagnostic studies, health services research

Sweet spot: Studies with immediate clinical applications

Avoid: Pure basic science, case reports

• Gastroenterology

Best for: Mechanistic research, translational studies, breakthrough basic science

Sweet spot: Studies that change understanding of GI disease mechanisms

Requirements: Strong preclinical data, clinical relevance helpful but not essential

• Gut

Best for: Microbiome research, inflammatory bowel disease, clinical epidemiology

Sweet spot: Population-level insights, especially European cohorts

Note: BMJ Publishing Group, different submission requirements

• Strategic decision framework:

If your study establishes mechanism → Gastroenterology

If your study changes clinical practice → CGH

If your study involves large populations or microbiome → consider Gut

If your study is solid but not field-changing → American Journal of Gastroenterology

For detailed journal selection strategy, see our comprehensive guide on how to choose the right journal for your paper.

• JIF isn't everything. CGH papers get cited heavily in clinical guidelines and systematic reviews. Gastroenterology papers influence research directions. Choose based on your career goals and paper's strengths.

Before you upload, run your manuscript through a Clinical Gastroenterology and Hepatology submission readiness check to catch the issues editors filter for on first read.

Across gastroenterology and hepatology manuscripts targeting Clinical Gastroenterology and Hepatology, the failures that matter most are visible before the paper reaches a specialist reviewer. CGH is an AGA clinical journal, and its author instructions emphasize clinical articles for the digestive system, a complete Editorial Manager upload, conflicts and funding disclosures, reporting documents, and a cover letter that helps the editor judge fit. The manuscript therefore has to prove clinical usefulness through the abstract, clinical relevance statement, methods, figures, cover letter, references, and supplementary files.

Clinical relevance statement that describes burden instead of action

Across gastroenterology manuscripts targeting Clinical Gastroenterology and Hepatology, the most common weak pattern is a clinical relevance statement that sounds important but does not change a clinical decision. It may describe colorectal cancer burden, inflammatory bowel disease frequency, MASLD prevalence, endoscopy utilization, microbiome disruption, or healthcare disparities, but the statement never tells a gastroenterologist or hepatologist what the manuscript supports doing differently. For Clinical Gastroenterology and Hepatology, that is not a small wording issue.

The official Elsevier and AGA guide asks for complete submission materials through Editorial Manager, and the journal identity is practice-facing clinical GI, not mechanism-first biology.

The fix is to rewrite the 250-word clinical relevance statement as a decision paragraph. Name the patient group, the clinical decision, the comparison or intervention, and the implication supported by the data. The abstract should make the same move in shorter form, and the cover letter should explain why CGH readers need the result now.

If the figures show hazard ratios, diagnostic accuracy, response rates, or implementation outcomes, the statement should point to the exact manuscript components that support clinical action. If the data cannot support a practice implication, Gastroenterology, Gut, Clinical and Translational Gastroenterology, Alimentary Pharmacology & Therapeutics, or American Journal of Gastroenterology may be more honest targets.

Check whether your CGH clinical relevance statement is action-specific →

Single-center cohort stretched into a broad GI practice claim

Across hepatology and GI outcomes manuscripts targeting Clinical Gastroenterology and Hepatology, the second recurring pattern is a methods package that can support a local conclusion but not the general claim made in the abstract. The manuscript may use a single academic center, a narrow referral population, a retrospective chart cohort, or an endoscopy database with missing external validation, yet the discussion says the result should influence broad GI practice.

CGH editors and reviewers look at the methods, tables, sample definition, sensitivity analyses, supplementary files, and limitations section before accepting that leap.

The stronger package makes the generalizability argument explicit. If the cohort is single-center, the methods should explain referral patterns, inclusion and exclusion criteria, missing-data handling, confounder strategy, and why the sample is still informative. The main tables should show baseline characteristics and clinically relevant subgroup checks. The supplementary file should carry sensitivity analyses, coding definitions, reporting checklists such as STROBE, and any validation work. The cover letter should not oversell beyond what the sample can support.

If the result is clinically useful but narrower, American Journal of Gastroenterology, Clinical Gastroenterology and Hepatology, Gut, Gastroenterology, and Journal of Clinical Gastroenterology each imply different breadth, mechanism, and practice expectations, so the manuscript needs a journal-specific claim level.

Check whether your CGH methods package supports the generalizability claim →

Mechanistic GI biology package without patient-facing validation

Across translational GI manuscripts targeting Clinical Gastroenterology and Hepatology, a third pattern appears when the science is strong but the target is wrong. The abstract opens with epithelial biology, immune signaling, microbiome mechanism, organoid response, animal-model work, or molecular pathology, while the patient-facing implication is confined to the last paragraph.

The figures may be elegant, the controls may be credible, and the references may be current, but the manuscript still reads like a mechanism paper unless it connects the biology to a clinical decision, diagnostic tool, treatment strategy, prognosis problem, or implementation pathway.

For CGH, the clinical bridge needs to be in the submission package, not only promised for future work. That can mean patient cohort validation, an outcome-linked biomarker analysis, clinically interpretable diagnostic performance, treatment-response evidence, or a clear management implication grounded in the data. The cover letter should explain why the result belongs in Clinical Gastroenterology and Hepatology instead of Gastroenterology, Gut, Journal of Clinical Investigation, Cellular and Molecular Gastroenterology and Hepatology, or a disease-specific venue.

The methods and supplementary files should make the human evidence easy to audit. If the manuscript cannot yet show that bridge, strengthening the clinical validation before CGH submission is usually more valuable than using the cover letter to argue around the gap.

Check whether your CGH translational bridge is strong enough for a clinical journal →

This guide tells you what CGH editors look for before review: a clinical relevance statement tied to action, a methods package that supports the breadth of the claim, and a patient-facing bridge when the biology is mechanistic. Manusights checks never train on your manuscript, and every pre-submission review is covered by the 60-day money-back guarantee when it does not deliver a usable submission-readiness report.

Before submitting to Clinical Gastroenterology and Hepatology, a Clinical Gastroenterology and Hepatology submission readiness check identifies whether your clinical evidence, study design, and practice-change argument meet the editorial bar before you commit to the submission.

• Gut submission guide

• Gut submission process

• How to Strengthen a Gut Submission

• Hepatology submission process

If you have already submitted, see Clinical Gastroenterology and Hepatology Under Review for the portal meaning, follow-up threshold, and reviewer-risk preparation window. That status page connects this guide to the live waiting period after submission.