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Condition (MeSH)

Melanosis

ClinicalTrials.gov lists 216 trials for Melanosis or a narrower condition beneath it. Cosmetique Active International has the most among industry and government lead sponsors, with 9.

MeSH D008548 Skin and Connective Tissue Diseases C17
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Phase 1 Phase 1 14 Phase 1/2 Phase 1/2 2 Phase 2 Phase 2 23 Phase 2/3 Phase 2/3 5 Phase 3 Phase 3 9 Phase 4 Phase 4 28 Not applicable Not applicable 108 Observational Observational 27 Phase 1 Phase 1 14 Phase 1/2 Phase 1/2 2 Phase 2 Phase 2 23 Phase 2/3 Phase 2/3 5 Phase 3 Phase 3 9 Phase 4 Phase 4 28 Not applicable Not applicable 108 Observational Observational 27

Trials per phase (log scale)

165 of the 216 trials are tagged with Melanosis itself; the rest are tagged with a narrower condition beneath it.

Get the Melanosis report as a PDF

The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did Melanosis trials start? (24)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational

Top of scale: 21

1995: 1 trials (Observational 1) 2002: 1 trials (Observational 1) 2005: 2 trials (Phase 2 2) 2006: 6 trials (Observational 1, Phase 4 3, Phase 2 1, Phase 1/2 1) 2007: 2 trials (Not applicable 2) 2008: 10 trials (Observational 2, Not applicable 2, Phase 4 3, Phase 2/3 1, Phase 2 2) 2009: 6 trials (Observational 1, Phase 4 2, Phase 3 1, Phase 2/3 1, Phase 2 1) 2010: 3 trials (Not applicable 2, Phase 2 1) 2011: 4 trials (Not applicable 2, Phase 4 1, Phase 3 1) 2012: 6 trials (Observational 1, Not applicable 4, Phase 4 1) 2013: 8 trials (Observational 2, Not applicable 5, Phase 4 1) 2014: 3 trials (Observational 1, Not applicable 1, Phase 3 1) 2015: 8 trials (Observational 1, Not applicable 4, Phase 4 1, Phase 1 2) 2016: 7 trials (Observational 1, Not applicable 3, Phase 3 1, Phase 2 2) 2017: 9 trials (Observational 4, Not applicable 3, Phase 3 1, Phase 2 1) 2018: 11 trials (Not applicable 5, Phase 4 3, Phase 3 1, Phase 2/3 1, Phase 1 1) 2019: 14 trials (Observational 2, Not applicable 7, Phase 4 2, Phase 3 1, Phase 2 1, Phase 1 1) 2020: 6 trials (Not applicable 2, Phase 4 1, Phase 2/3 1, Phase 1 2) 2021: 12 trials (Observational 1, Not applicable 7, Phase 4 1, Phase 2 1, Phase 1 2) 2022: 17 trials (Observational 4, Not applicable 8, Phase 4 1, Phase 2 2, Phase 1 2) 2023: 21 trials (Observational 1, Not applicable 13, Phase 4 2, Phase 3 1, Phase 2 2, Phase 1 2) 2024: 20 trials (Observational 1, Not applicable 15, Phase 4 1, Phase 3 1, Phase 2 1, Phase 1 1) 2025: 20 trials (Not applicable 13, Phase 4 2, Phase 2 4, Phase 1/2 1)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 17
2025 20
2024 20
2023 21
2022 17
2021 12
2020 6
2019 14
2018 11
2017 9

Forecast of the full-year count, planned starts included, not rows of this table: about 22 trials starting in 2026 and about 22 in 2027, the average of the 24 months through September, counted as registered and carried forward. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 28 percent and ran about 20 percent low against the count later registered; forecasts made before the year began were off by about 39 percent and ran about 37 percent low against the count later registered. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.

Prediction, not a registry value: median of 15 months from start to primary completion across 16 trials still running at the 2026-10-09 snapshot; registered median of 10 months across 117 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Melanosis trials in? (8)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 14
Phase 1/2 2
Phase 2 23
Phase 2/3 5
Phase 3 9
Phase 4 28
Not applicable 108
Observational 27

How many Melanosis trials are recruiting? (9)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 16
Recruiting 16
Enrolling by invitation 3
Active, not recruiting 7
Completed 106

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most Melanosis trials? (6)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
Cosmetique Active International 9
Galderma R&D 4
Jinnah Postgraduate Medical Centre 4
Cryonove Pharma 3
Cynosure, Inc. 3

Which drugs are being tested for Melanosis? (4)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
Hydroquinone Cream 4
Ingenol Mebutate 3
.spironolactone 2
Trichloroacetic Acid 2

Interventions as named in the registry (11)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
acid tranexamic 15
1% Metformin 6
Triple Combination Cream 5
[PRP] platelet rich plasma 3
Topical 30% metformin cream 3

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do Melanosis trials report? (5)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Diabetic ketoacidosis 2 1
Appendicitis 1 1
Myocardial infarction 1 1
Pneumonia 1 1
Severe hypoglycemia 1 1

Which publications cover Melanosis? (126)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Publications
Publication Journal Year Major topic
Amber LED photobiomodulation versus tranexamic acid for the treatment of melasma: randomized controlled double-blind pilot trial. Lasers in medical science 2025 Yes
Microneedling-assisted delivery of metformin versus tranexamic acid in treating melasma: a randomized controlled study. European journal of medical research 2025 Yes
Emerging topical therapies for melasma: a comparative analysis of efficacy and safety. The Journal of dermatological treatment 2025 Yes
Targeting the dermis for melasma maintenance treatment. Scientific reports 2024 Yes
Does Systemic Metformin Have a Role in Treating Melasma? Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] 2024 Yes

Sub-conditions in MeSH (2)

MeSH descendants one level down with at least one trial, most trials first.

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: prevalence and rare-disease identity.

Browse all condition evidence pages