Rosacea research record

What do registered trials show for rosacea?

5 treatments have a posted result against a comparison group. The exact treatment and comparison numbers are below.

The guide helps with care decisions. This page is the supporting trial record.

01

Treatment results

These treatments have at least one completed trial that posted a result against a comparison group — the only kind of result that can show the treatment itself made the difference. Each card is one trial against its own comparator, so cards can’t be compared head-to-head. Every result-posting study in the record was scanned, not just recent ones. A “vehicle” is the same cream or gel without the active ingredient — the fairest comparison for a topical.

sarecycline

59 more people per 100 reached a better rating from the trial’s own assessor at 12 weeks.

Serious adverse events in this trial: 0 of 72 on treatment vs 0 of 25 in the comparison group (submitted counts).

Outcome: IGA (Investigator Global Assessment) · NCT04555525 details · ClinicalTrials.gov record · Phase 4 · Other organization-run

Doxycycline

21.8 more people per 100 reached clear or almost-clear skin at 16 weeks.

Serious adverse events in this trial: 2 of 48 on treatment vs 0 of 53 in the comparison group (submitted counts).

Outcome: Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe · NCT03340961 details · ClinicalTrials.gov record · Phase 2 · Industry-run

Ivermectin

10.8 more people per 100 reached the trial’s rating of treatment success at day 1 to day 84.

Serious adverse events in this trial: 0 of 193 on treatment vs 0 of 100 in the comparison group (submitted counts).

Outcome: Subjects With Clinical Success on the Investigator Global Assessment · NCT02795117 details · ClinicalTrials.gov record · Phase 3 · Industry-run

Omiganan

9.4 more people per 100 reached a better rating from the trial’s own assessor at 12 weeks.

Outcome: Percentage of Participants Who Achieved 2 Grade IGA Reduction. · NCT02547441 details · ClinicalTrials.gov record · Phase 3 · Industry-run

azelaic acid

Azelaic Acid, 15% Topical Gel: -67% — vs Gel Vehicle: -38.6%, at week 12. Measured as fewer lesions.

Serious adverse events in this trial: 1 of 390 on treatment vs 0 of 190 in the comparison group (submitted counts).

Outcome: Percent Change From Baseline to Week 12 in the Inflammatory (Papules and Pustules) Lesion Counts. · NCT02120924 details · ClinicalTrials.gov record · Phase 3 · Industry-run

Where the comparison did as well — or better

Before paying more for a newer option, check whether it beat the alternative in its own trial. In these primary outcomes, it didn’t:

Every study with posted results in this record

13 registered rosacea studies posted numeric results that this index maps to a treatment. Each has its own page showing exactly what was submitted, group by group.

Did a more expensive option beat the alternative?

Head-to-head: when treatments faced each other

Most trials compare against a placebo or vehicle. These posted outcomes compared one active treatment with another — the comparison that actually answers “which one?”:

  • Sarecycline 75% vs Centrum Adult Multivitamin 16%12 weeks · primary outcome · NCT04555525sarecycline
  • Doxycycline 40 mg 31.2% vs DFD-29 60.2%Week 16. · secondary outcome · NCT05343455Doxycycline
  • Doxycycline 40 mg -14.6 lesions vs DFD-29 -18.1 lesionsWeek 16. · secondary outcome · NCT05343455Doxycycline
  • Doxycycline 40 mg 46.3% vs DFD-29 64.8%Week 16. · secondary outcome · NCT05296629Doxycycline
  • Doxycycline 40 mg -15.6 lesions vs DFD-29 -20.6 lesionsWeek 16. · secondary outcome · NCT05296629Doxycycline

The trials nobody ran

Among the most-studied rosacea treatments, these pairs have never even appeared together in a registered trial — so no public evidence says which one is better:

  • azelaic acidIvermectin
  • azelaic acidBrimonidine Tartrate
  • azelaic acidOxymetazoline
  • azelaic acidOmiganan
  • azelaic acidSodium Chloride
  • DoxycyclineBrimonidine Tartrate

Same molecule, different price tag

Regulatory status of the tracked treatments — whether the molecule studied in the trials above is available over the counter, as a generic, or brand-only. 10 of them have an OTC, generic, or biosimilar route.

TreatmentStatusUnited StatesCanada
azelaic acid (Finacea, Azelex)The 15% gel/foam (rosacea) and 20% cream (acne) contain the same molecule at different strengths; lower-strength azelaic acid also appears in cosmetics.Generic prescription availableFinacea 15% gel (rosacea) has prescription generics; the 15% foam remains brand-only; Azelex 20% cream (acne) is brand-only. sourceFinacea 15% gel is available in Canada by prescription. source
clindamycin phosphate (Cleocin T, Dalacin T)Clindamycin phosphate is the ester form of clindamycin used in topical products; it converts to the same active antibiotic in the skin.Generic prescription availablePrescription topical products (solution, gel, lotion, foam) are available as generics. sourcePrescription-only; marketed as Dalacin T and generics. source
dapsone (Aczone)Topical dapsone gel and oral dapsone tablets contain the same molecule in different formulations.Generic prescription availableAczone 5% and 7.5% acne gels have prescription generic equivalents; oral dapsone tablets are also generic. sourcenot verified
doxycycline (Oracea, Vibramycin, Apprilon)The 40 mg modified-release rosacea capsule contains the same molecule as generic immediate-release doxycycline, at a sub-antimicrobial dose.Generic prescription availableOral doxycycline (used at antibiotic doses for acne) is a widely available generic; the 40 mg modified-release anti-inflammatory capsule for rosacea (Oracea) has had generics since 2024. sourceGeneric oral doxycycline is available by prescription; the 40 mg modified-release form is marketed as Apprilon. source
isotretinoin (Absorica, Accutane, Epuris)All isotretinoin capsule brands and generics contain the same molecule; low-dose use in rosacea is off-label in both markets.Generic prescription availableOral isotretinoin is generic (e.g., Claravis, Amnesteem, Absorica) and dispensed under the iPLEDGE safety program; rosacea use is off-label. sourceAvailable by prescription as brands (Accutane, Clarus, Epuris) and generics. source
ivermectin (Soolantra, Rosiver, Stromectol)The rosacea cream and the antiparasitic tablets contain the same molecule in different formulations.Generic prescription availableSoolantra 1% rosacea cream has a generic equivalent (launched 2021); oral ivermectin tablets are also generic; all prescription-only. sourceThe 1% rosacea cream is marketed as Rosiver in Canada by prescription. source
metronidazole (MetroGel, Noritate, Rosadan)Topical rosacea products use the same molecule as oral metronidazole antibiotics, with much lower systemic exposure.Generic prescription availableTopical 0.75% and 1% gels, creams, and lotions for rosacea are prescription generics. sourcePrescription topical metronidazole (MetroGel, Noritate) is available in Canada. source
minocycline (Minocin, Solodyn, Amzeeq)The brand-only 4% topical foam and generic oral capsules contain the same antibiotic.Generic prescription availableOral minocycline, including extended-release tablets, is generic by prescription; the 4% topical foam (Amzeeq, approved 2019) is brand-only. sourceOral minocycline is generic by prescription in Canada. source
oxymetazoline (Rhofade, Afrin, Upneeq)A generic 1% cream with the same molecule as Rhofade is listed as marketed; the OTC nasal sprays are the same molecule at a different concentration for a different route, not a substitute.Generic prescription availableRhofade 1% cream for rosacea redness is prescription-only, and a generic 1% oxymetazoline cream is now listed as marketed (Sun Pharmaceutical, ANDA213584). The same molecule is also sold OTC in nasal decongestant sprays (e.g., Afrin) and as prescription eye drops (Upneeq) — different products, not interchangeable. sourcenot verified
tretinoin (Retin-A, Altreno, Stieva-A)Prescription generics and brands contain the same molecule; unlike adapalene, no tretinoin product is sold OTC in the US or Canada.Generic prescription availableTopical tretinoin creams and gels (0.01%-0.1%) are prescription generics; for melasma, tretinoin alone is off-label but it is one of the three molecules in the approved combination Tri-Luma. sourcePrescription-only; available as brands (Retin-A, Stieva-A) and generics. source
apremilast (Otezla)Apremilast is a small-molecule tablet but currently has no marketed US generic.Brand-only prescriptionOtezla tablets are brand-only by prescription; no generic is currently marketed in the US. sourceOtezla is available by prescription in Canada. source
brimonidine tartrate (Mirvaso, Onreltea, Lumify)The rosacea gel, OTC eye drops, and glaucoma drops all contain brimonidine at very different strengths for different uses.Brand-only prescriptionMirvaso 0.33% gel for rosacea redness is prescription-only; the same molecule is sold OTC as 0.025% redness-relief eye drops (Lumify) and as generic prescription glaucoma eye drops. sourceThe rosacea gel is marketed as Onreltea in Canada by prescription. source
clascoterone (Winlevi)Clascoterone is available only as the brand Winlevi in both markets.Brand-only prescriptionWinlevi 1% cream (approved 2020) is prescription-only; no generic is available. sourceWinlevi 1% cream approved by Health Canada in June 2023; prescription-only. source
deucravacitinib (Sotyktu)Deucravacitinib is available only as the brand Sotyktu.Brand-only prescriptionSotyktu tablets (approved 2022) are prescription-only; no generic. sourceSotyktu is marketed in Canada by prescription. source
rifaximin (Xifaxan, Zaxine)Rifaximin has no approved skin indication; rosacea studies relate to gut bacterial overgrowth.Brand-only prescriptionXifaxan tablets are brand-only by prescription (approved for IBS-D, hepatic encephalopathy, and travelers' diarrhea); rosacea use is off-label. sourceMarketed as Zaxine in Canada by prescription. source
sarecycline (Seysara)Sarecycline is a narrow-spectrum tetracycline sold only as the brand Seysara, unlike doxycycline and minocycline, which are generic.Brand-only prescriptionSeysara tablets are brand-only by prescription; no generic. sourcenot verified
botulinum toxin type a (Botox, Dysport, Xeomin)Botulinum toxin products are distinct, non-interchangeable brands, and their use for rosacea is investigational.Biologic — brand onlyPrescription biologics (Botox, Dysport, Xeomin and others); rosacea use is off-label/investigational, not an approved indication. sourcePrescription biologics in Canada; rosacea is not an approved indication. source
guselkumab (Tremfya)Guselkumab is available only as the brand Tremfya.Biologic — brand onlyTremfya is a prescription biologic; no biosimilar. sourceTremfya is marketed in Canada by prescription. source
secukinumab (Cosentyx)Secukinumab is available only as the brand Cosentyx in North America.Biologic — brand onlyCosentyx is a prescription biologic; no biosimilar is marketed in the US. sourceCosentyx is marketed in Canada by prescription. source
omigananOmiganan completed rosacea trials but never reached the market.Investigational — not approvedInvestigational topical antimicrobial peptide studied for rosacea; not approved in any market. sourcenot verified

Regulatory status only, verified 2026-08-20 with one source per claim — not pricing, coverage, or a recommendation. Status can change; check the linked source.

Find one of 59 tracked treatments

Search by brand or generic name, or browse the 59 most-studied terms. They are ordered by what the public record can show, not by benefit or safety.

azelaic acidGeneric prescription available4 comparative results · 9 result-posting studies scanned13 linked records · 9 of 13 completed posted results

At Baseline to Week 12, Percent Change From Baseline to Week 12 in the Inflammatory (Papules and Pustules) Lesion Counts changed by -67% in the Azelaic Acid, 15% Topical Gel group and -38.6% in the Gel Vehicle group—a difference 28.4 percentage points numerically larger in the selected group.

One submitted registry outcome, not a pooled estimate — from NCT02120924 details · ClinicalTrials.gov record · Phase 3 · Industry lead sponsor · vs placebo/vehicle · earliest favourable time point: week 12

Who was in these trials?
  • Average age 50.7 years (submitted means covering 3,249 participants).
  • 69% of 3,301 counted participants were female.
  • Race or ethnicity reported in 4 studies; skin phototype in 2.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
DoxycyclineGeneric prescription available7 comparative results · 9 result-posting studies scanned13 linked records · 9 of 12 completed posted results

At 16 weeks, 33.3% of people in the Oraycea® (Doxycycline) Capsules group had the submitted improvement result (Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe), compared with 11.5% in the Placebo Capsules group—21.8 more people per 100.

One submitted registry outcome, not a pooled estimate — from NCT03340961 details · ClinicalTrials.gov record · Phase 2 · Industry lead sponsor · vs placebo/vehicle · earliest favourable time point: week 12

Who was in these trials?
  • Average age 50.1 years (submitted means covering 3,183 participants).
  • 69% of 3,183 counted participants were female.
  • Race or ethnicity reported in 6 studies; skin phototype in 3.
  • Fitzpatrick IV–VI (darker skin) reported: yes — 17 participants across the reporting studies.
IvermectinGeneric prescription available2 comparative results · 6 result-posting studies scanned6 linked records · 5 of 6 completed posted results

At Day 1 to Day 84, 45.5% of people in the Test Product group had the submitted improvement result (Subjects With Clinical Success on the Investigator Global Assessment), compared with 34.7% in the Placebo group—10.8 more people per 100.

One submitted registry outcome, not a pooled estimate — from NCT02795117 details · ClinicalTrials.gov record · Phase 3 · Industry lead sponsor · vs placebo/vehicle

Who was in these trials?
  • Average age 51.5 years (submitted means covering 974 participants).
  • 62% of 1,936 counted participants were female.
  • Race or ethnicity reported in 3 studies; skin phototype in 1.
  • Fitzpatrick IV–VI (darker skin) reported: yes — 17 participants across the reporting studies.
OmigananInvestigational — not approved3 comparative results · 3 result-posting studies scanned4 linked records · 3 of 4 completed posted results

At 12 weeks, Change in Inflammatory Lesion Count From Baseline to Week 12 changed by -18.1 Lesions in the Treatment group and -13.5 Lesions in the Vehicle Gel group—a difference 4.6 Lesions numerically larger in the selected group.

One submitted registry outcome, not a pooled estimate — from NCT02547441 details · ClinicalTrials.gov record · Phase 3 · Industry lead sponsor · vs placebo/vehicle · earliest favourable time point: week 12

Who was in these trials?
  • Average age 51.4 years (submitted means covering 1,033 participants).
  • 64% of 1,033 counted participants were female.
  • Race or ethnicity reported in 3 studies; skin phototype in 1.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
sarecyclineBrand-only prescription1 comparative result · 1 result-posting studies scanned1 linked record · 1 of 1 completed posted results

At 12 weeks, 75% of people in the Sarecycline group had the submitted improvement result (IGA (Investigator Global Assessment)), compared with 16% in the Centrum Adult Multivitamin group—59 more people per 100.

One submitted registry outcome, not a pooled estimate — from NCT04555525 details · ClinicalTrials.gov record · Phase 4 · Other organization lead sponsor · vs another active treatment · earliest favourable time point: week 12

Who was in these trials?
  • Average age 52.4 years (submitted means covering 97 participants).
  • 82% of 97 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
OxymetazolineGeneric prescription availableWithin-group result only4 linked records · 4 of 4 completed posted results
Who was in these trials?
  • Average age 47.1 years (submitted means covering 1,231 participants).
  • 75% of 1,231 counted participants were female.
  • Race or ethnicity reported in 4 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
apremilastBrand-only prescriptionWithin-group result only1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 70% of 10 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
secukinumabBiologic — brand onlyWithin-group result only1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 61% of 23 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Brimonidine TartrateBrand-only prescriptionPosted results · no safely mapped effect in any scanned study6 linked records · 4 of 5 completed posted results
Who was in these trials?
  • Average age 50.9 years (submitted means covering 391 participants).
  • 67% of 853 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
MetronidazoleGeneric prescription availablePosted results · no safely mapped effect in any scanned study7 linked records · 3 of 6 completed posted results
Who was in these trials?
  • Average age 48.3 years (submitted means covering 437 participants).
  • 66% of 1,399 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 1.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Sodium ChloridePosted results · no safely mapped effect in any scanned study3 linked records · 1 of 3 completed posted results
Who was in these trials?
  • Average age 62.4 years (submitted means covering 10 participants).
  • 70% of 10 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
RifaximinBrand-only prescriptionPosted results · no safely mapped effect in any scanned study2 linked records · 1 of 1 completed posted results
Who was in these trials?
  • 74% of 204 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Aminolevulinic AcidPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 80% of 30 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 1.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
clindamycin phosphateGeneric prescription availablePosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 71% of 83 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
clindamycin, tretinoin drug combinationPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 71% of 83 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Cromolyn SodiumPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • Average age 62.4 years (submitted means covering 10 participants).
  • 70% of 10 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Drugs, GenericPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • Average age 50.8 years (submitted means covering 694 participants).
  • 69% of 694 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
guselkumabBiologic — brand onlyPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 61% of 23 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
incobotulinumtoxinAPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • Average age 47 years (submitted means covering 9 participants).
  • 78% of 9 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Intravital MicroscopyPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • Average age 50 years (submitted means covering 190 participants).
  • 28% of 190 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
pyratine 6Posted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • Average age 51 years (submitted means covering 24 participants).
  • 75% of 24 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
Sunscreening AgentsPosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • Average age 51.6 years (submitted means covering 894 participants).
  • 71% of 894 counted participants were female.
  • Race or ethnicity reported in 1 study; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
TretinoinGeneric prescription availablePosted results · no safely mapped effect in any scanned study1 linked record · 1 of 1 completed posted results
Who was in these trials?
  • 71% of 83 counted participants were female.
  • Race or ethnicity reported in 0 studies; skin phototype in 0.
  • Fitzpatrick IV–VI (darker skin) reported: not in any tracked study — the record does not say how well this was tested on darker skin.
36 more tracked treatments with no posted results — studied, but the public record holds no numbers yet
Botulinum Toxins, Type ABiologic — brand onlyNo posted results2 linked records · 0 of 1 completed posted results
Calcium DobesilateNo posted results2 linked records · 0 of 1 completed posted results
HydroxychloroquineNo posted results2 linked records · 0 of 1 completed posted results
IsotretinoinGeneric prescription availableNo posted results2 linked records · 0 of 2 completed posted results
abobotulinumtoxinANo posted results1 linked record · 0 of 0 completed posted results
Acupuncture TherapyNo posted results1 linked record · 0 of 0 completed posted results
AmitriptylineNo posted results1 linked record · 0 of 0 completed posted results
Atralin GelNo posted results1 linked record · 0 of 0 completed posted results
BenchmarkingNo posted results1 linked record · 0 of 1 completed posted results
BevacizumabNo posted results1 linked record · 0 of 1 completed posted results
BID protein, humanNo posted results1 linked record · 0 of 1 completed posted results
ClascoteroneBrand-only prescriptionNo posted results1 linked record · 0 of 0 completed posted results
DapsoneGeneric prescription availableNo posted results1 linked record · 0 of 1 completed posted results
deucravacitinibBrand-only prescriptionNo posted results1 linked record · 0 of 0 completed posted results
erenumabNo posted results1 linked record · 0 of 0 completed posted results
GabapentinNo posted results1 linked record · 0 of 1 completed posted results
ImipramineNo posted results1 linked record · 0 of 0 completed posted results
Lasers, DyeNo posted results1 linked record · 0 of 1 completed posted results
Lasers, Solid-StateNo posted results1 linked record · 0 of 1 completed posted results
lotilanerNo posted results1 linked record · 0 of 0 completed posted results
MinocyclineGeneric prescription availableNo posted results1 linked record · 0 of 0 completed posted results
MK-0524No posted results1 linked record · 0 of 1 completed posted results
N-(1-(3,5-difluoro-4-methanesulfonylaminophenyl)ethyl)-3-(2-propyl-6-trifluoromethylpyridine-3-yl)acrylamideNo posted results1 linked record · 0 of 1 completed posted results
OxygenNo posted results1 linked record · 0 of 1 completed posted results
p38 MAPK inhibitor SB203582No posted results1 linked record · 0 of 1 completed posted results
PowdersNo posted results1 linked record · 0 of 0 completed posted results
remibrutinibNo posted results1 linked record · 0 of 0 completed posted results
Salicylic AcidNo posted results1 linked record · 0 of 1 completed posted results
SumatriptanNo posted results1 linked record · 0 of 1 completed posted results
TherapeuticsNo posted results1 linked record · 0 of 0 completed posted results
TimololNo posted results1 linked record · 0 of 1 completed posted results
tofacitinibNo posted results1 linked record · 0 of 0 completed posted results
Tomography, Optical CoherenceNo posted results1 linked record · 0 of 0 completed posted results
trametinibNo posted results1 linked record · 0 of 1 completed posted results
tranilastNo posted results1 linked record · 0 of 0 completed posted results
Zinc SulfateNo posted results1 linked record · 0 of 0 completed posted results

02

Who was studied?

Only 9 of 77 result-posting rosacea studies reported participants’ separately measured skin type. The public record therefore rarely shows whether people with skin like yours were included.

Among 77 completed studies with posted results, this is how often each participant detail was reported.

Age reported — 77 of 77 studies100%
Age reported — 77 of 77 studies
Sex or gender reported — 77 of 77 studies100%
Sex or gender reported — 77 of 77 studies
Race or ethnicity reported — 45 of 77 studies58%
Race or ethnicity reported — 45 of 77 studies
Skin phototype reported — 9 of 77 studies12%
Skin phototype reported — 9 of 77 studies
Who could enrol — eligible age bands (studies)
  • Adults eligible208
  • Older adults eligible178
  • Children eligible4
Who could enrol — sex eligibility (studies)
  • All sexes eligible198
  • Female participants eligible8
  • Male participants eligible1
  • Sex eligibility not reported1

03

Research record

Open the part you need. Every count remains tied to this condition and snapshot.

77 of 158 completed trials posted results
77 of 158 completed studies posted results49%
77 of 158 completed studies posted results

81 completed trials did not post numeric results to the registry as of 2026-09-11. A missing result does not mean the treatment failed; it means the public cannot check what happened.

Among studies that ended at least 12 months ago, 77 of 148 (52%) posted results.

Who ran the trials and how they were designed

60% were led by industry, usually the company selling the treatment. This is context about who asked the question, not proof that a result is wrong.

Registered trial phases (studies)
  • Not applicable60
  • Phase 248
  • Phase 341
  • Phase 427
  • Phase 120
  • Phase 1 / Phase 27
  • Early phase 13
  • Phase 2 / Phase 32
Lead sponsor class (studies)
  • Industry124
  • Other organization80
  • Other government2
  • Research network2

Lead sponsor class is not the same as all funding, and it is not a study-quality score.

Timelines and 17 active or recruiting trials

Across 75 primary-outcome time points, the typical trial judged success around week 12. This record does not support a claim of visible results in days.

Registered study starts per year

Rosacea registered study starts per year, 2002–2026
2002–2026 · 2026: 7

Median study duration: 11.5 months.

Study starts by year (table)
YearStudy starts
20021
20041
20052
20064
20076
20084
20097
20108
201112
201213
201310
201414
20157
201614
201719
201812
20199
20204
20219
202210
202312
202412
202511
20267
Most-listed study countries (of 32 total)
  • United States135
  • China15
  • Canada14
  • Germany12
  • France10
  • United Kingdom6
  • Sweden5
  • Australia3
  • +4 more12

Study locations are not participant nationality or ancestry.

Study counts, sources and limits
clinical trials tracked
208
completed trials with posted results
77 of 158
submitted enrollment
33,351
active or recruiting now
17

ClinicalTrials.gov data through · methodology v2.1.0 · snapshot 9a17314144e5…

What these figures cannot tell you

  • Registry records are submitted by sponsors and investigators; Skinlogie processes selected fields but does not independently verify every record.
  • Nothing here is a pooled estimate of whether one treatment works better or causes fewer harms — results stay tied to their single study, outcome, comparator, and time point.
  • “Completed” is a registry status, not a judgment of study quality, risk of bias, or selective reporting; posted results are not the complete journal literature.
  • Study counts and research activity measure how much research is visible, not how well a treatment works.
  • Enrollment sums count submitted participant entries, not guaranteed unique people; reported categories cannot show whether a population was representative or whether subgroup findings apply to you.
  • A between-group difference can estimate a comparative effect only when groups and outcome are clear enough; a percentage observed in a single group cannot show what would have happened without treatment.
  • This index cannot decide whether a treatment is safe or suitable for you — that depends on benefits and harms, your preferences, and your health context.

Plain-language definitions

Placebo
A look-alike with no medicine in it, so trials can separate the treatment’s effect from expectation and time.
Vehicle
The same cream or gel without the active ingredient — the fair comparison for topicals, because the base alone can moisturize.
Comparative result
A posted number for the treatment group and a comparison group in the same trial. Only this kind of result can show the treatment itself made the difference.
Primary outcome
The one measurement a trial named in advance as its test of success — harder to cherry-pick than outcomes chosen after the fact.
Phase 3
The large, late-stage trials regulators rely on. Phase 1 and 2 are smaller and earlier; Phase 4 studies happen after approval.
Industry-run
The registered lead sponsor is a company — usually the one selling the treatment. Not proof of bias, but worth knowing who asked the question.
Biosimilar
A close copy of a biologic drug approved as equivalent — the “generic” route for biologics, typically sold at a lower price.
n=
How many people were analysed in a group. Bigger groups give steadier numbers.

Source: official ClinicalTrials.gov search · snapshot · result-mapping layer (v1.1.0, 2026-08-21) · field guide and citation.

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Citation text

As of 2026-09-11, 77 of 158 completed rosacea trials registered on ClinicalTrials.gov have posted results, and 5 treatments have a posted result against a comparison group (Skinlogie Evidence Index, https://skinlogie.com/evidence-index/rosacea).

Skinlogie’s derived figures are licensed CC BY 4.0 — reuse them with this attribution. Source records: ClinicalTrials.gov. Full dataset and citation format →