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  • Abatacept fails to...

Abatacept fails to prevent psoriasis relapse occuring after ustekinumab withdrawal: JAMA

MD Editorial TeamWritten by MD Editorial Team Published On 2021-10-29T09:00:53+05:30  |  Updated On 2021-10-29T09:01:02+05:30
Abatacept fails to prevent psoriasis relapse occuring after ustekinumab withdrawal: JAMA
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Research on psoriasis pathogenesis has largely increased knowledge on skin biology in general. The mechanisms involved in the initiation and development of the disease, as well as the therapeutic options that have arisen from the dissection of the inflammatory psoriatic pathways. A randomized clinical trial by Harris M Kristina , PhD and team revealed that abatacept did not prevent...

Research on psoriasis pathogenesis has largely increased knowledge on skin biology in general. The mechanisms involved in the initiation and development of the disease, as well as the therapeutic options that have arisen from the dissection of the inflammatory psoriatic pathways.

A randomized clinical trial by Harris M Kristina , PhD and team revealed that abatacept did not prevent psoriasis relapse that occurred after ustekinumab withdrawal because it did not completely block the pathogenic psoriasis molecular pathways that led to relapse.

The findings of the study are published in JAMA Dermatology.

The objective of the study was to determine whether costimulatory signaling blockade with abatacept prevents psoriasis relapse after ustekinumab withdrawal.

The study was a parallel-design, double-blinded, placebo-controlled randomized clinical trial, was conducted at 10 sites in the US and Canada. Adults with moderate to severe plaque psoriasis were included and received ustekinumab in a lead-in phase and divided into two groups ustekinumab group or the switched to abatacept group. Treatment was discontinued at week 39, and participants were followed up for psoriasis relapse until week 88. Participants received subcutaneous ustekinumab at weeks 0 -4, abatacept group received subcutaneous abatacept at week 12, from weeks 12 to 39 and ustekinumab placebo at weeks 16 and 28. The primary end point was psoriasis relapse between weeks 12 and 88. Secondary end points included time to psoriasis relapse, proportion of participants with psoriasis relapse between weeks 12 and 40, and adverse events.

The results of the study were

• A total of 108 participants were treated with open-label ustekinumab; 91 were randomized to blinded treatment. Similar proportions of participants in the abatacept group and the ustekinumab group relapsed between weeks 12 and 88.

• Median time to relapse from the last dose of ustekinumab was similar between groups as well: 36 weeks (95% CI, 36-48 weeks) in the abatacept group vs 32 weeks (95% CI, 28-40 weeks) in the ustekinumab group.

• Similar numbers and rates of adverse events occurred. Abatacept did not maintain suppression of the pathogenic IL-23-mediated psoriasis molecular signature in lesions after ustekinumab withdrawal, and serum IL-19 levels increased.

Kristina and team concluded that "This parallel-design, double-blind randomized clinical trial found that abatacept did not prevent psoriasis relapse that occurred after ustekinumab withdrawal because it did not completely block the pathogenic psoriasis molecular pathways that led to relapse."

Reference:

Harris KM, Smilek DE, Byron M, et al. Effect of Costimulatory Blockade With Abatacept After Ustekinumab Withdrawal in Patients With Moderate to Severe Plaque Psoriasis: The PAUSE Randomized Clinical Trial. JAMA Dermatol. Published online October 13, 2021. doi:10.1001/jamadermatol.2021.3492

abatacept ustekinumab psoriasis relapse JAMA Dermatology 
Source : JAMA Dermatology
MD Editorial Team
MD Editorial Team

    Medical Dialogues consists of a team of passionate medical/scientific writers, led by doctors and healthcare researchers. Our team efforts to bring you updated and timely news about the important happenings of the medical and healthcare sector. Our editorial team can be reached at editorial@medicaldialogues.in.

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