1. Design
Endpoint and instrument selection, photographic requirements and central review approach defined at protocol stage.
Therapeutic Areas · Dermatology
Dermatology studies require specialized expertise in imaging, endpoint standardization, patient-reported outcomes and long-term disease management.
Overview
Dermatology studies require specialized expertise in imaging, endpoint standardization, patient-reported outcomes and long-term disease management.
Guosa Life Sciences delivers the operational precision and scientific expertise dermatology programs demand.
Areas of Expertise
Specialized Capabilities
Why GLS
Our integrated enterprise combines scientific depth, operational excellence and collaborative partnerships to support development across diverse and demanding research environments.
The capability
We support dermatology programs across psoriasis, atopic dermatitis, vitiligo, acne, hidradenitis and rare skin disease, from proof of concept through registration.
Dermatology endpoints are predominantly visual and predominantly subjective. Investigator global assessments, lesion counts and area-severity indices all depend on the assessor, and photographic documentation is frequently the evidence a reviewer will examine, which makes image quality a data quality issue rather than an administrative one.
Regulatory considerations
Where photography supports an endpoint, standardization is expected: consistent lighting, distance, positioning, background and equipment across every site and every visit, documented in an imaging manual and evidenced by training records. Images that vary in these respects cannot support a claim of change over time, and central review will identify the inconsistency even where site staff did not.
Assessor consistency carries the same weight as in other index-based areas. Training against the specific instrument, certification before scoring, and monitoring for drift are expected, and where the primary endpoint is an investigator global assessment, authorities increasingly look for evidence that the same assessor evaluated the same subject across visits wherever feasible.
How an engagement runs
Endpoint and instrument selection, photographic requirements and central review approach defined at protocol stage.
Imaging manual, equipment standardization, assessor training and certification, and central review process established.
Ongoing image quality review with feedback to sites, assessor consistency monitored.
Analysis with central review reconciliation and documented handling of unusable images.
What you receive
An imaging manual with site training records. Standardized equipment across sites. Central image review reports. Assessor certification and consistency records.
Evidence and context
Our operating assumptions are published rather than asserted. The Future of Clinical Trials in Africa sets out why study performance is increasingly determined by ecosystem maturity rather than site selection, and The Untapped Advantage makes the case that institutions, not regions, are the right unit of qualification. Both are available in full, with executive briefs for readers who want the argument in a shorter form.
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ExploreDiscuss your dermatology program with our multidisciplinary team.