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Press Release Details

Albireo to Present Late Breaking Bylvay® (odevixibat) Data at AASLD 2022

November 1, 2022

– Oral late breaker with new results from positive Phase 3 ASSERT study in Alagille syndrome (ALGS)

– Oral late breaker provides evidence of disease modification in PFIC

– Analysis of PEDFIC 1 data showed restoration of bile acid secretion in patients with PFIC2

BOSTON, Nov. 01, 2022 (GLOBE NEWSWIRE) -- Albireo Pharma, Inc. (Nasdaq: ALBO), a rare disease company developing novel bile acid modulators to treat pediatric and adult liver diseases, today announced the acceptance of two late breakers, including one late breaker with new data from the Phase 3 ASSERT study, to be presented as an oral presentation at the American Association for the Study of Liver Disease (AASLD) The Liver Meeting® 2022, November 4 – 8, 2022. Positive topline results from ASSERT, a global, double-blind, randomized, placebo-controlled trial which evaluated the safety and efficacy of Bylvay in ALGS patients from birth to early adulthood, were announced in October. A second late breaker was also accepted as an oral presentation with data showing Bylvay restored biliary bile acid secretion in treatment-responsive progressive familial intrahepatic cholestasis (PFIC) patients with bile salt export pump (BSEP) deficiency in the PEDFIC 1 trial. A third oral presentation was previously announced, with a pooled data analysis of the PEDFIC trials showing that a decrease in serum bile acids was strongly associated with native liver survival in PFIC patients treated with Bylvay.

Earlier this month, Albireo announced that an additional six abstracts were accepted for presentation at the AASLD meeting, showcasing data on Bylvay treatment in patients with several types of PFIC, as well as data for A3907, the Company’s ASBT inhibitor in clinical development for the treatment of adult liver disease. A full list of presentations can be found on The Liver Meeting Digital Experience™ 2022 website.

Oral Presentation (Abstract #5005; Publication #38786): Efficacy and Safety of Odevixibat in Patients with Alagille Syndrome: Top-line Results from ASSERT, a Phase 3, Double-Blind, Randomized, Placebo-Controlled Study
Presenter: Dr. Nadia Ovchinsky, Children’s Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, NY, USA
Session Title: Late-Breaking Oral Abstract Session 1
Presentation Type: Oral, Late-Breaking Parallel Session
Date & Time: Monday, November 7, 2022, 9:00 AM - 10:30 AM EST
Presentation Time: 9:15 AM EST

Oral Presentation (Abstract #5004; Publication #38801): Odevixibat Treatment in Responsive Patients with Bile Salt Export Pump Deficiency Restores Biliary Bile Acid Secretion, as Indicated by Serum Bile Acid Composition
Presenter: Dr. Mark Nomden, Department of Surgery and Pediatrics, University Medical Center Groningen, Groningen, the Netherlands
Session Title: Late-Breaking Oral Abstract Session 1
Presentation Type: Oral, Late-Breaking Parallel Session
Date & Time: Monday, November 7, 2022, 9:00 AM - 10:30 AM EST
Presentation Time: 10:00 AM EST

Oral Presentation (Abstract #865): Native Liver Survival in Odevixibat Serum Bile Acid Responders: Data from the PEDFIC Studies in Patients with Progressive Familial Intrahepatic Cholestasis
Presenter: Dr. Richard J. Thompson, Institute of Liver Studies, King’s College London
Session Title: Genes to Cures: What’s New in Pediatric Liver Disease
Date & Time: Sunday, November 6, 2:10 PM EST

About Bylvay (odevixibat) 
Bylvay is the first drug approved in the U.S. for the treatment of pruritus in patients 3 months of age and older in all types of progressive familial intrahepatic cholestasis (PFIC). Limitation of Use: Bylvay may not be effective in PFIC type 2 patients with ABCB11 variants resulting in non-functional or complete absence of bile salt export pump protein (BSEP-3). The European Commission (EC) and UK Medicines and Healthcare products Regulatory Agency (MHRA) have also granted marketing authorization of Bylvay for the treatment of PFIC in patients aged 6 months or older. A potent, once-daily, non-systemic ileal bile acid transport inhibitor, Bylvay has minimal systemic exposure and acts locally in the small intestine. Bylvay can be taken as a capsule for patients that are able to swallow capsules, or opened and sprinkled onto food, which is a factor of key importance for adherence in a pediatric patient population. The most common adverse reactions for Bylvay are diarrhea, liver test abnormalities, vomiting, abdominal pain, and fat-soluble vitamin deficiency. The medicine can only be obtained with a prescription. For more information about using Bylvay, see the package leaflet or contact your doctor or pharmacist. For full prescribing information, visit www.bylvay.com.

In the U.S. and Europe, Bylvay has orphan exclusivity for its approved PFIC indications, and orphan designations for the treatment of ALGS, biliary atresia and primary biliary cholangitis. Bylvay is being evaluated in the ongoing PEDFIC 2 open-label trial in patients with PFIC, in the BOLD Phase 3 study for patients with biliary atresia and the ASSERT open-label trial for ALGS.

Important Safety Information 

  • The most common adverse reactions for Bylvay are diarrhea, liver test abnormalities, vomiting, abdominal pain, and fat-soluble vitamin deficiency.
  • Liver Test Abnormalities: Patients should obtain baseline liver tests and monitor during treatment. Dose reduction or treatment interruption may be required if abnormalities occur. For persistent or recurrent liver test abnormalities, consider treatment discontinuation.
  • Diarrhea: Treat dehydration. Treatment interruption or discontinuation may be required for persistent diarrhea.
  • Fat-Soluble Vitamin (FSV) Deficiency: Patient should obtain baseline vitamin levels and monitor during treatment. Supplement if deficiency is observed. If FSV deficiency persists or worsens despite FSV supplementation, discontinue treatment.

ASSERT Phase 3 Clinical Trial Data

ASSERT is a gold standard, prospective intervention trial with 32 sites across North America, Europe, Middle East, and Asia Pacific. The double-blind, randomized, placebo-controlled trial was designed to evaluate the safety and efficacy of 120 µg /kg/day Bylvay (odevixibat) for 24 weeks in relieving pruritus in patients with Alagille syndrome (ALGS). Key secondary endpoints measure serum bile acid levels and safety and tolerability. The trial enrolled patients aged 0 to 17 years of age with a genetically confirmed diagnosis of ALGS. The primary efficacy endpoint was a change from baseline to month 6 (weeks 21 to 24) in pruritus measured by scratching with the PRUCISION Observer-Reported Outcome (ObsRO) scratching score caregiver instrument (0-4 point scale). The key secondary efficacy endpoint was a change in serum bile acid responses (sBAs) from baseline to the average of weeks 20 and 24.

In the primary analysis, the study met the primary endpoint showing statistically significant reduction in pruritus as measured by the PRUCISION Observer-Reported Outcome scratching score (0-4 point scale), from baseline at month 6 (weeks 21 to 24), compared to the placebo arm (p=0.002). The study also met the key secondary endpoint showing a statistically significant reduction in serum bile acid concentration from baseline to the average of weeks 20 and 24 (compared to the placebo arm p=0.001). Statistically significant improvements in multiple sleep parameters were observed as early as week 1-4 compared to patients on placebo with continued improvement through week 24. In the study, there were no patient discontinuations. Bylvay was well tolerated, with an overall adverse event incidence similar to placebo and a low incidence of drug-related diarrhea (11.4% vs. 5.9% placebo).

  Placebo
n=17
Odevixibat
n=35
P-value
Mean change from baseline in scratching score at month 6 (weeks 21 to 24) -0.80   -1.69   0.002
Mean change in serum bile acid levels from baseline to average of weeks 20 & 24 22.39   -90.35   0.001
Rate of drug-related diarrhea 5.9%   11.4%   -
Number of discontinuations 0   0   -

The Company continues to enroll patients in the Phase 3 BOLD study, which is the first and only pivotal trial of an IBATi in biliary atresia (BA) and remains on track to fully enroll by end of year, with topline data planned for 2024. BA is the most common pediatric cholestatic liver disease with no approved drug treatment. With clinical programs in ALGS and BA, Bylvay has the potential to be approved for three pediatric cholestatic liver diseases.

About Albireo 
Albireo Pharma is a rare disease company focused on the development of novel bile acid modulators to treat pediatric and adult liver diseases. Albireo’s lead product, Bylvay, was approved by the U.S. FDA as the first drug for the treatment of pruritus in all types of progressive familial intrahepatic cholestasis (PFIC), and it is also being developed to treat other rare pediatric cholestatic liver diseases with a completed Phase 3 trial in Alagille syndrome (ALGS), an ongoing Phase 3 study in biliary atresia, as well as Open-label Extension (OLE) studies for PFIC and ALGS. In Europe, Bylvay is reimbursed for the treatment of PFIC in Germany, England, Wales & Northern Ireland, Scotland, Italy, and Belgium. The Company has also completed a Phase 1 clinical trial for A3907 to advance development in adult cholestatic liver disease, with IND-enabling studies progressing with A2342 for viral and cholestatic liver disease. Albireo was spun out from AstraZeneca in 2008 and is headquartered in Boston, Massachusetts, with its key operating subsidiary in Gothenburg, Sweden. For more information on Albireo, please visit www.albireopharma.com. 

Forward-Looking Statements

This press release includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements, other than statements of historical fact, regarding, among other things: Albireo’s commercialization plans; the plans for, or progress, scope, cost, initiation, duration, enrollment, results or timing for availability of results of, development of Bylvay, A3907, A2342 or any other Albireo product candidate or program; the target indication(s) for development or approval; the timing for anticipated regulatory filings; potential regulatory approval and plans for potential commercialization of Bylvay in biliary atresia or ALGS or in additional countries, or Albireo’s other product candidates; the potential benefits or competitive position of Bylvay or any other Albireo product candidate or program or the commercial opportunity in any target indication; expectations that biliary atresia is the most common pediatric cholestatic liver disease with no approved drug treatment; or Albireo’s plans, expectations or future operations, financial position, revenues, costs or expenses. Albireo often uses words such as “anticipates,” “believes,” “plans,” “expects,” “projects,” “future,” “intends,” “may,” “will,” “should,” “could,” “estimates,” “predicts,” “potential,” “planned,” “continue,” “guidance,” or the negative of these terms or other similar expressions to identify forward-looking statements. Actual results, performance or experience may differ materially from those expressed or implied by any forward-looking statement as a result of various risks, uncertainties and other factors, including, but not limited to: whether the regulatory filings to be made for Bylvay in patients with ALGS will be made on the timelines we expect and be approved by the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA); whether the FDA and EMA will complete their respective reviews within target timelines, once determined; whether the FDA and EMA will require additional information, whether we will be able to provide in a timely manner any additional information that the FDA and EMA request, and whether such additional information will be satisfactory to the FDA and EMA; there are no guarantees that Bylvay will be commercially successful; we may encounter issues, delays or other challenges in commercializing Bylvay; whether Bylvay receives adequate reimbursement from third-party payors; the degree to which Bylvay receives acceptance from patients and physicians for its approved indication; challenges associated with execution of our sales activities, which in each case could limit the potential of our product; challenges associated with supply and distribution activities, which in each case could limit our sales and the availability of our product; results achieved in Bylvay in the treatment of patients with PFIC or other approved indications may be different than observed in clinical trials, and may vary among patients; potential negative impacts of the COVID-19 pandemic, including on manufacturing, supply, conduct or initiation of clinical trials, or other aspects of our business; whether favorable findings from clinical trials of Bylvay to date, including findings in PFIC, ALGS and other indications, will be predictive of results from other clinical trials of Bylvay; there is no guarantee that Bylvay will be approved in jurisdictions or for indications (such as biliary atresia or ALGS) beyond the jurisdictions in which or indications for which Bylvay is currently approved; there is no guarantee that our other product candidates will be approved; estimates of the addressable patient population for target indications may prove to be incorrect; the outcome and interpretation by regulatory authorities of the ongoing third-party study pooling and analyzing of long-term PFIC patient data; the timing for initiation or completion of, or for availability of data from, clinical trials of Bylvay, including BOLD, and the Phase 2 clinical trial of A3907, and the outcomes of such trials; Albireo’s ability to obtain coverage, pricing or reimbursement for approved products in the United States or Europe; delays or other challenges in the recruitment of patients for, or the conduct of, the Company’s clinical trials; any repurchase by the Company of Sagard’s interest in the royalty interest payments under our royalty monetization agreement with Sagard could materially impact our financial condition; and the Company’s critical accounting policies. These and other risks and uncertainties that Albireo faces are described in greater detail under the heading “Risk Factors” in Albireo’s most recent Annual Report on Form 10-K or in subsequent filings that it makes with the Securities and Exchange Commission. As a result of risks and uncertainties that Albireo faces, the results or events indicated by any forward-looking statement may not occur. Albireo cautions you not to place undue reliance on any forward-looking statement. In addition, any forward-looking statement in this press release represents Albireo’s views only as of the date of this press release and should not be relied upon as representing its views as of any subsequent date. Albireo disclaims any obligation to update any forward-looking statement except as required by applicable law. 

Media Contacts:
Colleen Alabiso, 857-356-3905, colleen.alabiso@albireopharma.com
Lance Buckley, 917-439-2241, lbuckley@lippetaylor.com

Investor Contact:
Hans Vitzthum, LifeSci Advisors, LLC., 617-430-7578


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Source: Albireo Pharma, Inc.