Maintenance Acne Treatment With Topical Tazarotene after Oral Isotretinoin: Overview and Case Reports
Bibliographic record
Abstract
Introduction: Acne vulgaris is a common dermatologic disorder that may require treatment over months or years. Acne negatively impacts quality of life, and acne of any severity increases the risk of long-term sequelae such as scarring. Common treatments for severe/nodulocystic acne include oral isotretinoin, an oral antibiotic combined with a topical (benzoyl peroxide or a retinoid), an oral combined contraceptive, or oral spironolactone (females). Though oral antibiotics and isotretinoin are not recommended for long-term use, there is scarce guidance or published research on maintenance therapy. Topical retinoids—a mainstay of initial acne treatment—may be prescribed for maintenance once initial oral treatments are complete. Additionally, some retinoids such as tretinoin and tazarotene are indicated for the treatment of fine wrinkles and certain pigmentation disorders, and some studies have shown that adapalene and tazarotene may also reduce acne-induced scarring. Tazarotene 0.045% polymeric emulsion lotion is a well-tolerated retinoid that has demonstrated efficacy in acne treatment and may reduce acne-induced post-inflammatory hyperpigmentation (PIH) and melasma. Further, tazarotene lotion provides rapid and sustained improvements in skin barrier function/moisturization. Herein is presented a report of patients with acne who received maintenance treatment with topical tazarotene 0.045% lotion after an initial course of oral isotretinoin. Methods: Patients with severe recalcitrant acne vulgaris were treated with once daily oral isotretinoin for at least 20 weeks until deemed clinically clear. All patients received 40 mg isotretinoin once daily for the first 30 days. The dosage was then increased to 1 mg/kg of bodyweight (treatment naïve) or 1.5 mg/kg (repeat treatment). After 20 weeks, patients who achieved clinically clear skin initiated once-daily topical tazarotene 0.045% lotion monotherapy on the day of their last isotretinoin dose. Follow up visits occurred at 6 months and 1-year post-isotretinoin treatment. Results: Patients (n=12) had a mean age of 17.8 years (standard deviation [SD]: 3.8) and the majority were female (58.3%) and White (66.7%). Oral isotretinoin was used for an average of 24.3 weeks (SD: 6.7), with a mean cumulative dose of 184.6 mg/kg. One patient required a repeat course of isotretinoin prior to tazarotene initiation. Post-isotretinoin, patients received tazarotene 0.045% lotion for an average of 13.0 months (SD: 6.7). No patients relapsed and all showed subjective visual improvements in acne-related scarring with tazarotene maintenance treatment. None discontinued tazarotene lotion due to adverse events. Conclusions: There is little guidance or research published on acne maintenance treatment after initial oral isotretinoin or other treatments are complete. Topical tazarotene 0.045% polymeric emulsion lotion has previously demonstrated good efficacy, safety, and tolerability with acne and PIH reductions in patients with moderate-to-severe acne, as well as dyspigmentation reductions in patients with melasma and/or PIH. The case reports presented here show that tazarotene 0.045% lotion may be an effective and safe treatment to prevent relapse after initial oral isotretinoin treatment for severe recalcitrant acne. Funding: Ortho Dermatologics
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".