Unmet needs in treating itch: reaching beyond eczema

Area of Science:

• Dermatology
• Clinical Medicine
• Therapeutics

Background:

• Pruritus, an intense itch, significantly impacts quality of life, causing sleep disturbance and psychological distress.
• The itch-scratch cycle in chronic conditions exacerbates symptoms and reduces well-being.
• Despite advances, many pruritic diseases remain underrecognized and undertreated.

Purpose of the Study:

• To provide a comprehensive review of the challenges hindering the effective treatment of pruritus.
• To highlight unmet needs in managing various pruritic conditions.

Main Methods:

• A systematic online literature search was conducted across major databases (PubMed, Web of Science, Google Scholar, ClinicalTrials.gov) from 1994 to 2024.
• Relevant studies were summarized and assessed for quality and applicability to pruritus treatment.

Main Results:

• Key barriers include variable clinical presentation of itch and the lack of objective measurement tools.
• Identifying effective therapeutic targets for pruritus remains a significant challenge.
• Conditions like autoimmune diseases, genodermatoses, and cutaneous T-cell lymphoma exhibit substantial unmet needs.

Conclusions:

• Treating pruritus is complex, with numerous conditions lacking adequate therapeutic strategies.
• There is an urgent need for large-scale, controlled studies to identify novel therapeutic targets and treatments for pruritus.