Phase 2 Clinical Trial of Bermekimab Shows Potential New Standard of Care for Treatment of Hidradenitis Suppurativa, Including Significant Pain Reduction without Antibiotics

Phase 2 Clinical Trial of Bermekimab Shows Potential New Standard of Care for Treatment of Hidradenitis Suppurativa, Including Significant Pain Reduction without Antibiotics

19/03/2019

AUSTIN, Texas, March 05, 2019 (GLOBE NEWSWIRE) — XBiotech (NASDAQ: XBIT) today released findings for its Phase 2 clinical study for bermekimab presented at the American Academy of Dermatology’s annual meeting which concluded today. Held at the Walter E. Washington Convention Center in Washington, D.C., the presentation titled, “Bermekimab Shows Efficacy for Treating Hidradenitis Suppurativa (HS), Including Marked Reduction in Pain” was provided by renown dermatologist, Dr. Alice Gottlieb, M.D., Ph.D., in the major venue Hall A. At the presentation Dr. Gottlieb provided the results for 42 HS patients that received 12 weekly injections of bermekimab therapy. Aside from excellent safety, a major finding of the study was that patients achieved significant therapeutic benefit from bermekimab therapy regardless of whether or not they had previously failed treatment with the only existing FDA-approved biological drug treatment for HS. In what the Company believes to be a breakthrough for the disease, patients having previously failed as well as those who never received anti-TNF therapy had significant reduction in pain. Pain is a hallmark of HS that has so far not been adequately addressed by any therapy.

Dr. Gottlieb showed that by week 12 of treatment, 63% of patients who have previously failed anti-TNF therapy achieved a positive HiSCR (the accepted measure of disease severity in HS); similarly, 61% of patients with no prior anti-TNF therapy achieved positive HiSCR1. These results translated into a 46% (p<0.001) and 60% (p=0.005) reduction in the number of abscesses and inflammatory nodules, respectively, for the two groups. A breakthrough finding was that 67% and 72% of patients achieved a clinically meaningful reduction in pain by week 122.The existing FDA-approved biological therapy was only shown to reduce pain when used in combination with oral antibiotics3. No antibiotics were used as part of the clinical study with bermekimab.

XBiotech’s President & CEO, John Simard, stated, “The results seen with bermekimab in HS suggest a new and important advance for the treatment of this difficult disease. The totality of results we saw presented at the AAD conference have provided compelling evidence that bermekimab could make a significant contribution to the treatment of dermatological disease.”

The study enrolled 42 patients, each receiving 400mg subcutaneous weekly doses of bermekimab in a 12-week treatment regimen. There were two treatment groups: those who had failed prior anti-TNF therapy (n=24); and those with no prior anti-TNF treatment history (n=18).  The study was conducted at eleven different dermatology research centers across the U.S.

An intravenous infusion formulation of bermekimab was previously used in a randomized, double-blind, placebo controlled Phase 2 study for patients with HS, where bermekimab treated patients had a significantly higher rate of HiSCR compared to placebo. However, this was the first study of bermekimab in HS using a new subcutaneous formulation that is administered from pre-filled syringes. XBiotech invested in new filling equipment and developed the pre-filled syringe manufacturing process to provide a more convenient subcutaneous bermekimab product candidate.

Hidradenitis Suppurativa (HS) is a chronic, inflammatory skin disorder affecting areas rich in apocrine glands. Nodules appear in the affected areas and progressively become swollen with spontaneous rupture and release of pus. This process occurs repeatedly leading to formation of deep sinus tracts and painful dermal abscesses4,5. Pain is a paramount condition in patients suffering from HS, as this chronic inflammation and accompanying pain account for the fact that HS is ranked first among skin disorders in terms of adversely affecting quality of life6. The global prevalence of HS is estimated at up to 4% of the population5.

About True Human™ Therapeutic Antibodies

XBiotech’s True Human™ antibodies are derived without modification from individuals who possess natural immunity to certain diseases. With discovery and clinical programs across multiple disease areas, XBiotech’s True Human antibodies have the potential to harness the body’s natural immunity to fight disease with increased safety, efficacy and tolerability.

About XBiotech

XBiotech is a fully integrated global biosciences company dedicated to pioneering the discovery, development and commercialization of therapeutic antibodies based on its True Human™ proprietary technology. XBiotech currently is advancing a robust pipeline of antibody therapies to redefine the standards of care in oncology, inflammatory conditions and infectious diseases. Headquartered in Austin, Texas, XBiotech also is leading the development of innovative biotech manufacturing technologies designed to more rapidly, cost-effectively and flexibly produce new therapies urgently needed by patients worldwide. For more information, visit www.xbiotech.com.

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Source: XBiotech Inc.

Posted: March 2019

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