Independent · non-commercial · publishes on a quarterly cycle|Current cycle 2026 Q3
Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Compound monograph · §3

LL-37 — clinical evidence

Assessed outcomes with certainty ratings, contributing trials and the reasoning for each rating.

Document identifier
CEI-MN-042/3
Series
Compound monograph
Version
4.3
Published
27 Jan 2025
Last reviewed
27 Apr 2026
Next review
27 Apr 2028
Identifier
10.71829/cei.mono.42
Certainty
Low
Cycle
2025 Q1

§3Clinical evidence

Assessed outcomes for LL-37Point estimates with confidence intervals for each contributing study, plotted against the line of no effect.0.00.20.40.60.8Standardised direction and relative magnitude of the recorded effectIndicationEffect as recordedWound healing1 trial · LowA phase 1/2 trial of intralesional…Immune modulation0 trials · Very lowNo randomised human evidence for…
Moderate or high certaintyLow or very low certainty
Figure 3. Illustrative. Assessed outcomes plotted on a common standardised axis so that direction and relative magnitude can be compared at a glance. The estimates are not on a common natural scale and the intervals are the Institute's standardised representation of the reported precision, not the published confidence intervals. Published intervals appear in the per-indication extracts and in the text below.

§3.1Cutaneous wound healing and tissue repair

Anchor outcome. Time to complete closure.

Effect as recorded. A phase 1/2 trial of intralesional LL-37 in hard-to-heal venous leg ulcers reported greater ulcer-area reduction at intermediate doses than at the highest dose; small sample; non-monotonic dose response.[1,2]

Certainty. Low certainty A genuine controlled clinical trial exists. The non-monotonic dose response is consistent with the narrow window between beneficial and cytotoxic concentrations, and the Institute records it as mechanistically informative rather than as an anomaly.

Contributing trials. LL37-PH1-2-VENOUSULCER. Full structured abstracts are published for each.

Full evidence extract for cutaneous wound healing and tissue repair · Indication assessment

§3.2Immune modulation and adjunctive immunotherapy

Anchor outcome. CD4 and CD8 counts.

Effect as recorded. No randomised human evidence for systemic immune effects; —.[2,3]

Certainty. Very low certainty

Contributing trials. None identified. The rating reflects an absence of controlled evidence rather than conflicting evidence.

Full evidence extract for immune modulation and adjunctive immunotherapy · Indication assessment

References cited on this page

References are numbered in order of first citation in this document. Each superscript in the text links to its entry below.

  1. D’Hondt M, Bracke N, Taevernier L, Gevaert B, Verbeke F, Wynendaele E, De Spiegeleer B. Related impurities in peptide medicines. Journal of Pharmaceutical and Biomedical Analysis 2014;101:2–30. doi:10.1016/j.jpba.2014.06.012 · PMID 25044089
  2. Manning MC, Chou DK, Murphy BM, Payne RW, Katayama DS. Stability of protein pharmaceuticals: an update. Pharmaceutical Research 2010;27(4):544–575. doi:10.1007/s11095-009-0045-6 · PMID 20143256
  3. Wang W, Nema S, Teagarden D. Protein aggregation — pathways and influencing factors. International Journal of Pharmaceutics 2010;390(2):89–99. doi:10.1016/j.ijpharm.2010.02.025 · PMID 20188795

Identifiers are reproduced only where the Institute holds them. Where a digital object identifier or PubMed identifier is not shown, the Institute has recorded the journal and year and has not constructed an identifier.

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