Research Summary
Analyzed using Evidence Intelligence™

Melatonin gel improves healing of diabetic foot ulcers

Last updated August 16, 2026

Key finding

The melatonin group demonstrated a significant decrease in ulcer number compared to the placebo group (p < 0.05).

The study evaluated the effectiveness of topical 1% melatonin hydrogel for healing diabetic foot ulcers compared to a placebo, finding significant improvements in ulcer healing.

Quick read

Study at a glance

The essential study design details in one scan.

EvidenceScore™

Moderate

Study type

RCTs

Follow-up

Short-Term (≤3 mo)

Risk of bias

Some Concerns

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Plain-language summary

What this paper says

A plain-language read of the study’s main message and where it applies.

Study focus

The study evaluated the effectiveness of topical 1% melatonin hydrogel for healing diabetic foot ulcers compared to a placebo, finding significant improvements in ulcer healing.

Clinical relevance

Diabetic foot ulcers are a common and serious complication of diabetes, often leading to infections and amputations. Effective treatments are crucial for improving patient outcomes and reducing healthcare costs. The findings suggest that melatonin hydrogel could be a valuable addition to current treatment options, potentially enhancing healing and reducing ulcer severity.

Keep in mind

The study's sample size may limit generalizability. The duration of the study may not capture long-term effects. Potential biases in participant selection could affect results.

Published in

Journal Reference

Publication details and source links for this paper.

Fatemeh A, Laya HG, Shahram E, et al. Topical 1% Melatonin Hydrogel for Healing Diabetic Foot Ulcers: A Randomized Controlled Trial. BMC Endocrine Disorders. 2025;25:254. doi:10.1186/s12902-025-02057-1

Main Effects

The melatonin group demonstrated a significant decrease in ulcer number (p < 0.05).

Severity grade of ulcers was significantly reduced in the melatonin group (p < 0.05).

Healing proportion of ulcers increased significantly in the melatonin group (p < 0.05).

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Melatonin and Healing proportion of diabetic foot ulcers, Number of ulcers, Severity grade of ulcers, and 3 more.

Primary intervention

Melatonin

Primary outcomes

  • Healing proportion of diabetic foot ulcers
  • Number of ulcers
  • Severity grade of ulcers

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

6
Evidence pairs
6
Relationships
0
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 54

0

Related topics

6

Evidence pairs

0

Related studies

Why it is useful

  • Contributes to 6 evidence relationships
  • Includes primary outcome data
  • Linked to 0 direct semantic evidence topics

Core evidence

Study findings

The primary outcomes reported in this study.

Healing proportion of diabetic foot ulcers

Melatonin → Healing proportion of diabetic foot ulcers

Melatonin → Healing proportion of diabetic foot ulcers

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Number of ulcers

Melatonin → Number of ulcers

Melatonin → Number of ulcers

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Severity grade of ulcers

Melatonin → Severity grade of ulcers

Melatonin → Severity grade of ulcers

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Ulcer size reduction in new-onset ulcers

Melatonin → Ulcer size reduction in new-onset ulcers

Melatonin → Ulcer size reduction in new-onset ulcers

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Ulcer size reduction in patients with HbA1c ≤ 8%

Melatonin → Ulcer size reduction in patients with HbA1c ≤ 8%

Melatonin → Ulcer size reduction in patients with HbA1c ≤ 8%

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
100
Very Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Wound healing rate measured by reduction in ulcer size

Melatonin → Wound healing rate measured by reduction in ulcer size

Melatonin → Wound healing rate measured by reduction in ulcer size

Evidence Intelligence™
EvidenceScore™
Emerging
Score 59 · Based on 1 study
ImpactScore™
65
Slightly Positive
ConsistencyScore™
unclear
Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence Tracker

Evidence Library

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evidence suggest

Evidence Suggest

  • Melatonin treatment led to a decrease of 15 ulcers (p < 0.05).
  • Ulcer severity reduced by 1 grade in the melatonin group (p < 0.05).
  • Healing proportion improved by 29.49% with melatonin (p < 0.05).
who this applies

Who this applies to

  • Adults with diabetic foot ulcers.
  • Patients with HbA1c levels ≤ 8%.
keep in mind

Keep in Mind

  • Results may not apply to all diabetic patients.
  • Further studies are needed to confirm long-term efficacy.
  • The study focused on a specific population, limiting broader applicability.
between the lines

Between the Lines

  • The study's sample size may limit generalizability.
  • The duration of the study may not capture long-term effects.
  • Potential biases in participant selection could affect results.

Evidence Library

Build your evidence library

Save research, organize studies, and quickly find important evidence again.

Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Melatonin and Healing proportion of diabetic foot ulcers, Melatonin and Number of ulcers.

Related evidence relationships

Explore in Evidence Explorer

This study contributes to the evidence on the following intervention-outcome relationships.

Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

Does Melatonin improve healing proportion of diabetic foot ulcers?

Emerging Evidence

Melatonin appears to improve Healing proportion of diabetic foot ulcers.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Healing proportion of diabetic foot ulcers

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Aug 2026

Does Melatonin improve number of ulcers?

Emerging Evidence

Melatonin appears to improve Number of ulcers.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Number of ulcers

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Aug 2026

Does Melatonin improve severity grade of ulcers?

Emerging Evidence

Melatonin appears to improve Severity grade of ulcers.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Severity grade of ulcers

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Aug 2026

Does Melatonin improve ulcer size reduction in new-onset ulcers?

Emerging Evidence

Melatonin appears to improve Ulcer size reduction in new-onset ulcers.

ConsistencyScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Ulcer size reduction in new-onset ulcers

    EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Aug 2026
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