Rapamycin + Laser for Port-Wine Stain

This trial explores whether rapamycin cream, combined with a special laser treatment, can improve the appearance of port-wine stain birthmarks more effectively than a placebo cream. Researchers are testing two strengths of rapamycin cream (0.6% and 1.0%) to determine which is most effective over a 12-week period. The trial seeks participants with port-wine stains on the face, neck, or upper trunk that measure at least 5 cm tall and 2.5 cm wide. Participants must visit the clinic every 4 weeks for checkups and apply the cream daily. As a Phase 2 trial, this research focuses on measuring the treatment's effectiveness in an initial, smaller group, offering participants a chance to contribute to important medical advancements.

The trial does not specify if you need to stop taking your current medications, but you cannot participate if you've used certain medications like rapamycin or similar drugs in the last 3 months.

Research has shown that rapamycin cream, when combined with pulsed dye laser treatment, is generally safe for treating port wine stains, which are birthmarks caused by blood vessels. One study found that using 1% rapamycin cream did not cause significant side effects. Other studies confirm that applying rapamycin (also known as sirolimus) on the skin is safe as part of a treatment plan.

For the 0.6% rapamycin cream, previous patients who used it with laser treatment also reported it as safe. At least one human trial tested this treatment, indicating it is safe enough for further testing.

Unlike the standard laser therapy for port-wine stains, which focuses on reducing the appearance of the birthmark, rapamycin cream offers a new approach by potentially enhancing the effects of laser treatment. Rapamycin is unique because it targets the mTOR pathway, which is involved in cell growth and blood vessel formation, offering a novel mechanism of action. Researchers are excited about these treatments because rapamycin cream, particularly in the 1.0% and 0.6% formulations, could improve the efficacy of laser therapy and possibly lead to better and faster results. Plus, the topical application makes it easy and non-invasive, adding to its appeal for patients.

Research has shown that using rapamycin cream with pulsed dye laser (PDL) treatment can improve the appearance of port wine stains, which are red or purple birthmarks. In this trial, participants will receive either 1.0% rapamycin cream, 0.6% rapamycin cream, or a placebo cream. Studies have found that combining rapamycin cream with laser treatment is more effective than laser treatment alone in reducing the redness and thickness of these birthmarks. Specifically, the 1.0% rapamycin cream demonstrated promising results in enhancing the appearance of port wine stains. Similarly, the 0.6% rapamycin cream, when used with PDL, significantly improved the color and texture of these birthmarks. These findings suggest that both strengths of rapamycin cream, when combined with laser treatment, could make port wine stains less noticeable.¹²⁵⁶⁷