FRONTIER-1 Details
The investigators enrolled eligible adults aged 18 years or older who had moderate to severe plaque psoriasis as defined by an Investigator’s Global Assessment score ≥ 3, a total body-surface area of psoriasis involvement of at least 10%, and a PASI score ≥ 12 who had received their diagnosis of plaque psoriasis at least 6 months before starting the trial. The participants had to be candidates for phototherapy or systemic psoriasis therapy.
Patients were randomly assigned to the active agent at doses of 25 mg once or twice daily, 50 mg once daily, or 100 mg once or twice daily for 16 weeks.
There was a clear dose response, with 37% of patients assigned to 25-mg once-daily dose meeting the primary endpoint of a PASI 75 response at week 16 compared with 51% of those assigned to the 25-mg twice-daily dose, 58% assigned to 50-mg once-daily dose, 65% assigned to 100-mg once-daily dose, and 79% assigned to 100-mg twice-daily dose (P for dose response < .001).
As noted previously, 9% of patients in the placebo group had a PASI 75 response at week 16.
After a mean duration of 15.9 weeks, adverse events after the first dose of JNJ-77242113 (all dose groups were pooled for the safety analysis) were reported in 47% of patients on the 25-mg once-daily dose, 49% on 25-mg twice-daily dose, 60% on 50-mg once-daily dose, 44% on 100-mg once-daily dose, and 62% on 100-mg twice-daily dose. Adverse events after the first dose occurred in 51% of patients assigned to placebo.
The incidence of adverse events did not increase significantly with successively higher dose levels.
As noted by Dr. Gelfand in his editorial, there were three serious adverse events, all occurring in patients on the active drug: a case of COVID-19 in one patient and a suicide attempt in one patient, both in the 100-mg once-daily dose group, and an infected cyst in the 50-mg once-daily group. All three events were determined by the principal investigator and the sponsor to be unrelated to JNJ-77242113.
There were no reports of deaths, major adverse cardiovascular events, or incident cancers during the trial.
The study was supported by Janssen Research and Development. Dr. Bissonnette disclosed institutional research funding and advisory board participation and honoraria with Janssen. Dr. Gelfand disclosed consulting for Janssen Biotech. Dr. Lebwohl disclosed institutional research funding from Janssen but no personal fees.
A version of this article first appeared on Medscape.com.