Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors

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Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Hope for Children
with Orphan Liver
Diseases
Through Bile Acid Modulation

August 2020
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Cautionary Note Regarding Forward-Looking Statements
This presentation includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements, other than historical facts,
regarding, among other things: the plans for, or progress, scope, cost, initiation, duration, enrollment, results or timing for availability of results of, development of odevixibat or any of our other product
candidates or programs, including regarding expectations regarding the impact of COVID-19 on our business and our ability to adapt our approach as appropriate; the Phase 3 clinical program for
odevixibat in patients with progressive familial intrahepatic cholestasis (PFIC), the pivotal trial for odevixibat in biliary atresia, the planned pivotal trial for odevixibat in Alagille syndrome and a Phase 2 trial
for elobixibat being conducted by EA Pharma in Japan; the target indication(s) for development or approval, the size, design, population, location, conduct, cost, objective, enrollment, duration or
endpoints of any clinical trial, or the timing for initiation or completion of or availability or reporting of results from any clinical trial, including the Phase 3 PFIC trial for odevixibat, and the long-term open-
label extension study, the pivotal trial for odevixibat in biliary atresia, the planned pivotal trial for odevixibat in Alagille syndrome, for submission of any regulatory filing, or for discussions with regulatory
authorities; the timing of and our ability to obtain and maintain regulatory approval of any of our product candidates and any related restrictions, limitations, or warnings in the label of any approved
product candidates; the timing for commercialization of any of our product candidates, if approved; the size of the PFIC population, the biliary atresia population or any other disease population for
indications that may be targeted by Albireo; the potential benefits or competitive position of odevixibat or any other Albireo product candidate or program or the commercial opportunity in any target
indication; the potential benefits of a rare pediatric disease designation; the potential benefits of a fast track designation; the potential benefits of orphan drug designation; the pricing of odevixibat if
approved; any action by, or decision of, EA Pharma concerning elobixibat or our business relationship; the duration of our cash runway; our future operations, financial position, revenues, costs, expenses,
uses of cash, capital requirements or our need for additional financing; or our strategies, prospects, beliefs, intentions, plans, expectations, forecasts or objectives. Words such as “anticipates,” “believes,”
“plans,” “expects,” “projects,” “future,” “intends,” “may,” “will,” “should,” “could,” “estimates,” “predicts,” “potential,” “continue,” “guidance,” and similar expressions sometimes identify forward-looking
statements.
Any forward-looking statement involves known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to differ materially
from those expressed or implied by such forward-looking statement, and, therefore, investors are cautioned not to place undue reliance on any forward-looking statement. These factors include, but are
not limited to: negative impacts of the COVID-19 pandemic, including on manufacturing, supply, conduct or initiation of clinical trials, or other aspects of our business; the potential availability of
odevixibat through the EAP, whether the United States Food and Drug Administration (FDA) continues to allow odevixibat to be administered through the Expanded Access Program (EAP), whether
favorable findings from clinical trials of odevixibat to date, including findings in indications other than PFIC, will be predictive of results from the trials comprising the Phase 3 PFIC program or any other
clinical trials of odevixibat; whether either or both of the FDA and European Medicines Agency (EMA) will determine that the primary endpoint for their respective evaluations and treatment duration of the
double-blind Phase 3 trial in patients with PFIC are sufficient, even if the primary endpoint is met with statistical significance, to support approval of odevixibat in the United States or the European Union,
to treat PFIC, a symptom of PFIC, a specific PFIC subtype(s) or otherwise; 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 odevixibat, including the trials comprising the Phase 3 PFIC program, the pivotal program in biliary
atresia or the planned pivotal program in Alagille syndrome, and the outcomes of such trials; Albireo’s ability to obtain coverage, pricing or reimbursement for approved products in the United
States or European Union; delays or other challenges in the recruitment of patients for, or the conduct of, the double-blind Phase 3 trial of odevixibat; whether odevixibat will meet the criteria to receive a
pediatric priority review voucher when applicable; the competitive environment and commercial opportunity for a potential treatment for PFIC or other orphan pediatric cholestatic liver diseases; the
medical benefit that may be derived from odevixibat, elobixibat, A3384 or any of our other product candidates; the extent to which our agreement for elobixibat with EA Pharma generates future
nondilutive income; the significant control or influence that EA Pharma has over the commercialization of elobixibat in Japan and the development and commercialization of elobixibat in EA Pharma’s other
licensed territories; our ability to protect and expand our intellectual property; the timing and success of submission, acceptance and approval of regulatory filings; and our critical accounting policies.
These and other risks and uncertainties that we face are described in our most recent Annual Report on Form 10-K and in other filings that we make or have made with the Securities and Exchange
Commission. In addition, market and industry statistics contained in this presentation are based on information available to us that we believe to be reliable but have not independently verified.

All forward-looking statements speak only as of the date this presentation is made and should not be relied upon as representing our views as of any date after this presentation is
made. We specifically disclaim any obligation to update any forward-looking statement, except as required by applicable law. “Albireo” is a trademark of Albireo AB. All other trademarks,
service marks, service marks, trade names, logos and brand names identified in this presentation are the properties of their respective owners.

           2                                                                            ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Albireo: Innovative Science + Deep Pipeline
                         + Well Capitalized

STRONG        ▪ More than a decade of leadership in bile acid modulation
BASIC         ▪ World’s first regulatory approval for IBATi therapy (elobixibat)
SCIENCE

ORPHAN
PEDIATRIC    ▪ Odevixibat (IBATi) wholly owned, oral QD capsule/sprinkle with MOU patent
LIVER LEAD     through 2031/34*, orphan desigs., PRIME, PIP, fast track and PRV eligibility
ASSET        ▪ Adult liver and bile acid malabsorption programs

SOLID         ▪ Nasdaq listed as ALBO; 15M outstanding shares as of June 30, 2020
FINANCIAL     ▪ $152M cash and cash equivalents as of June 30, 2020
POSITION      ▪ Cash into the beginning of 2022; past planned odevixibat approval/launch

                           *Natural expiry/with potential patent term extension (PTE)
 3                                        ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Management Team With Deep Biotech & Pharma Experience

                       Ron Cooper                                                          Jan Mattsson, PhD
                    President and CEO                                                      Chief Scientific Officer
                                                                                               (Co-Founder)
                    Bristol-Myers Squibb
                    (President of Europe)                                                       AstraZeneca

                   Pat Horn, MD, PhD                                                         Simon Harford
                   Chief Medical Officer                                                   Chief Financial Officer
                                                                                          Parexel, GlaxoSmithKline,
                   Orphan Technologies,                                                            Eli Lilly
                  Dyax, Tetraphase, Abbott

                  Pamela Stephenson                                                           Martha Carter
                 Chief Commercial Officer                                                 Chief Regulatory Officer
                        Vertex, Pfizer                                                    Aegerion, Proteon, Trine

                    Michelle Graham                                                          Jason Duncan
              Chief Human Resources Officer                                                 Chief Legal Officer
                                                                                           and General Counsel
                   TESARO, Parexel, Integer,                                              Stallergenes Greer, Sobi,
              Bausch + Lomb, Bristol-Myers Squibb
                                                                                                 EMD Serono

4                                        ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
A Robust Pipeline Targeting Liver and GI
                                                       Diseases/Disorders

                                                               PRECLINICAL                  PHASE 1                      PHASE 2   PHASE 3   APPROVED
Commercialization

                                                PFIC
  Independent

                          Odevixibat
    Planned

                                            Biliary Atresia

                         Pediatric Liver
                           Diseases        Alagille Syndrome

                                           Other Cholestatic

                                               Chronic                                   Approved in Japan/Partnered with EA Pharma
                           Elobixibat
                                             Constipation
 Commercialization
  Planned Partner

                                              Adult Liver
                         Lead Candidate
                                               Diseases
                           Bile Acid
                                             Undisclosed
                          Modulators
                                              Bile Acid
                             A3384
                                            Malabsorption

                     5                                                  ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Delivering on Our Plan as a Public Company

                                               Elobixibat
                                                                                                            Ph3 Odevixibat
                                                 Japan
                                                                                                             Biliary Atresia
                                               Approved
                                                                                                              Pivotal Start
                                                                                                  Ph3
       Ph3                                       Ph3
                          Ph2                                                                 Odevixibat    Odevixibat PFIC
    Elobixibat                               Odevixibat
                       Odevixibat                                                                 Site            Ph.3
    Japan Ph3                                PFIC Pivotal
                        Results                                                                Initiation     Last Patient
      Results                                   Start
                                                                                              Completed     Visit Completed

       2016              2017                       2018                                         2019           2020

     NASDAQ           Equity Raise                                                                ATM          Equity
                                            Equity Raise
      Listing           ~$50M                                                                  Financing        Raise
                                              ~$100M
      ~$30M                                                                                     ~$21M          ~$43M
                      Legacy Asset
    Elobixibat            Sale                Royalty
                                                                                                              Royalty
    Milestone           ~$4.5M              Monetization
                                                                                                            Monetization
    Payment                                   ~$45M
                                                                                                              ~$15M
      ~$8M
                                               Elobixibat
                                                                                                             Debt Facility
                                               Approval                                   PRV
                                                                                                                $10M
                                               Milestone                               Eligibility
                                               Payment                                Odevixibat
                                                ~$11M
6                                    ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Multiple Planned Milestones

                                                                                      1H’20        2H’20          1H’21          2H’21            2022

         PFIC PEDFIC 1: Phase 3 topline data                                                Mid 2020        *Last patient, last visit achieved*

      PFIC PEDFIC 2 rollover and expanded cohort                                    Open label

            Biliary atresia pivotal program                                         1H’20         Initiation     1H’21          Full site activation

          Alagille syndrome pivotal program                                                       EOY ‘20         Initiation

              PFIC approval and launch                                                                                          2H’21

Lead Candidate Adult Liver Disease (MOA undisclosed)                                 IND-enabling studies

              Novel bile acid modulators

  7                                        ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Odevixibat:
    Multi-Disease Development
             Approach

8
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Many Diseases with Cholestasis of the Liver

                                                                                                         Cystic Fibrosis-
                             Intrahepatic                                                                Associated Liver Disease
Progressive Familial         Cholestasis of
Intrahepatic                 Pregnancy                         Primary Biliary
Cholestasis (PFIC)                                             Cholangitis                                        AIDS
                                                                                                                  Cholangiopathy
                              Drug-Induced
                              Cholestasis
                                                                                               Malignancy of Bile Ducts
Biliary Atresia

                                                IG4-associated cholangitis
                  Alagille Syndrome

                                                                                                                  Low Phospholipid-
                                                               Biliary                                            Associated Cholestasis
Primary Sclerosing Cholangitis                                 Strictures

   9                                          ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children with Orphan Liver Diseases - Through Bile Acid Modulation August 2020 - Investors
Potential Target Indications

                      ~30,000-40,000* patients in the U.S. and EU alone who are lacking an
                                    approved pharmacological treatment
                 40

                                     Alagille 3-5K
                 35                                                                            Genetic disorder, paucity of bile ducts

                 30                      PFIC
                                        8-10K
                                                                                   Genetic disorders with bile acid build-up in liver
                 25
     Thousands

                                       Pediatric
                 20                      PSC
                                        8-10K                                                Inflammation and scarring of bile ducts
                 15

                                       Biliary                                                      Blocked or absent large bile ducts
                 10
                                       Atresia
                                       15-20K
                  5

                                                                                   *Estimate derived from literature, primary market research and modeling. Forecast
                  0                                                                estimates do not include other regional opportunities, such as Saudi Arabia, Turkey,
                                Bile Acid-Associated                               Asia, LATAM.
                              Cholestatic Liver Diseases

10                                                         ©2019 Albireo Pharma, Inc. All rights reserved.
What Is PFIC?

                        Genetic                                 Disease
     Presentation                                                                     Survival
                        Disorder                              Progression

                      Multiple genes,                      Inflammation           Almost no patients
     Age ~1-2        similar symptoms                         Fibrosis          survive beyond age 20
                                                              Cirrhosis            without surgical
      Cholestatic/                                             Death               diversion or liver
        Pruritic                                                                      transplant*

                                *Pawlikowska          2010

11                             ©2020 Albireo Pharma, Inc. All rights reserved
Inadequate Treatment Options for PFIC

Off-Label Medications                          PEBD Surgery                                         Liver Transplantation
                                     (partial external biliary diversion)1

       UDCA

                                                    0         1         2
                                                   Time Post PEBD ( Years)

Seeking symptomatic relief           Bile acid and pruritus reductions                            Limited timely organ availability
UDCA, rifampicin, cholestyramine …   Undesirable external stoma bag                               Need for lifelong immunosuppression
                                                                                                  Morbidity and disease recurrence

                                      1Yang,   et al. J Pediatr Gastroenterol Nutr 2009

  12                                             ©2020 Albireo Pharma, Inc. All rights reserved
Kennedie’s Story

             Diagnosis                       Insatiable Pruritis                                       Life Post-Transplant
     ✓ Failure to thrive                  “We did what we could.                                      ✓ Urgent need for liver transplant
     ✓ Unexplained seizure, brain bleed   Nothing could comfort her.                                  ✓ Lengthy hospitalization
     ✓ Undetectable levels of Vitamins    Nothing helps the                                           ✓ Various setbacks
       A, D, E, K
                                          insatiable itching.”                                        ✓ Compromised immune system
     ✓ PFIC 2 diagnosis at 6 months
                                                                                                      ✓ Requires daily immunosuppressive
                                          -Emily, Kennedie’s mother                                     medications

     For more patient stories, visit www.pficvoices.com/videos
13                                                   ©2020 Albireo Pharma, Inc. All rights reserved
Odevixibat: A Profile Potentially Suitable for Pediatric Use

                                                                   ▪ Once-Daily Dosing

                                                                   ▪ Oral Capsule or Sprinkles

                                                                   ▪ Minimal Systemic Exposure

                                                                   ▪ Favorable Tolerability Profile*

                                  *In Phase 2 clinical trial
14                          ©2020 Albireo Pharma, Inc. All rights reserved
NAPPED Natural History Data
                                                      Provide Strong Rationale for IBATi

     NAPPED: Natural Course and Prognosis of PFIC and Effect of Biliary Diversion

                                          PFIC2 Native Liver                                                                         PFIC1 Native Liver
                                        Survival Improvement*                                                                      Survival Improvement **

                                                                                                                                   % Of Patients With Native Liver
      % Of Patients With Native Liver

                                                                                                                                                                     P=0.03   Years After Diversion
                                        P=0.001   Years After Diversion

               Improved native liver survival does not require bile acid normalization
                                                    *Van Wessel et al. 10.1016/j.hep.2020.02.007, Would be 100%, but one patient died due
                                                    to complications of multiple PEBD surgeries ** Van Wessel Espghan 2019
15                                                                                               .
                                                                                  ©2020 Albireo Pharma, Inc. All rights reserved
Odevixibat: Phase 2 Trial in Pediatric Cholestatic Liver Disease

                       Odevixibat doses evaluated (µg/kg), 4 weeks

                                   10      30               60                100                200

                PFIC, Biliary Atresia, Alagille Syndrome, Intrahepatic Cholestasis Patients

             ▪ Open-label, dose-finding trial
             ▪ Primary endpoints: TESAEs and serum bile acid change
             ▪ Baseline – single test dose – 2-wk washout – 4-wk treatment
             ▪ Trial initially designed with a maximum dose of 300 µg/kg
             ▪ N=24 (20 unique + 4 retreated)

             Oral late breaker EASL’17/Presidential Poster of Distinction AASLD’17
Odevixibat
 Phase 2
 Pediatric
   Trial

  16                                            ©2020 Albireo Pharma, Inc. All rights reserved
Primary Efficacy Endpoint:
                                                  Reduction Demonstrated in Serum Bile Acids

                                                           All Patients                                                                                  PFIC Patients Only*
                                             0
                                            -10
             Mean (SEM) % change from
             baseline in serum bile acids

                                            -20   -31
                                            -30
                                                                                    -48            -51
                                            -40             -56
                                                                        -63
                                            -50
                                            -60
                                            -70                                        *
                                            -80     Bars illustrate Standard Error of the Mean
                                                                                                         **
                                            -90

                                  Phase 2 trial was an open-label, dose-finding trial of PFIC, biliary atresia,                              * Excludes PFIC patient with no BSEP function and 17-year-old PFIC
                                  Alagille syndrome, intrahepatic cholestasis patients for four weeks.                                       patient with low baseline sBA. Neither meet inclusion criteria for Phase 3
Odevixibat                        Primary endpoints: TESAEs and serum bile acid change                                                       trial.
 Phase 2                          N=24 (20 unique + 4 retreated) in five cohorts
 Pediatric                        *Excludes PFIC patient with no BSEP function.
   Trial                          **Excludes 17-year-old PFIC patient with low baseline sBA.
                                  Neither meet inclusion criteria for Phase 3 trial.
  17                                                                                             ©2020 Albireo Pharma, Inc. All rights reserved
Serum Bile Acids in Alagille Syndrome
                                  and Biliary Atresia Patients

                                      Alagille Syndrome                                                    Biliary Atresia

    Baseline µM         260     116      338       26                 121                 564                43        136       132
                   0
                                                                                          -14
                  -20
  Serum Bile                    -39
    Acids    -40
                                                  -52                                                                            -51
   % reduction                                                        -57                                              -58
  from baseline
                  -60

                  -80
                        -92
                                         10-200 ug/kg dose, 4 weeks of treatment                        30 ug/kg, 4 weeks of treatment
              -100
Odevixibat
                         1       2       3         4                    5                   6                 1         2         3
 Phase 2
 Pediatric
   Trial                                                                      Patient

  18                                                   ©2020 Albireo Pharma, Inc. All rights reserved
Statistical Correlation Supports Link Between Reductions
                          of Serum Bile Acids and Pruritus

                           VAS-Itcha                                                        Whitington (itch)b

                                                                                                                         ap=0.008, r=0.54, n=23.
                                                                                                                         bp=0.004, r=0.58, n=23.
                                                                                                                         cp=0.006, r=0.57, n=22.
                                                                                                                         dp=0.005, r=0.57, n=22.

                          PO-SCORAD (itch)c                                                 PO-SCORAD (sleep)d

Odevixibat
 Phase 2
 Pediatric
   Trial
                      n
Favorable Tolerability Profile in Trial

 ▪ All patients completed treatment; no evidence of diarrhea during 4-week treatment period

 ▪ No AEs related to treatment during 4-week treatment period
       • Most common AEs: pyrexia, ear infections (12.5%)

 ▪ No SAEs designated as treatment related (2 deemed unrelated)

 ▪ Decision made not to dose escalate above 200 µg/kg
       • Some transaminase elevations at 200 µg/kg

Odevixibat
 Phase 2
 Pediatric
   Trial

  20                                          ©2020 Albireo Pharma, Inc. All rights reserved
PEDFIC 1&2: Phase 3 PFIC Program Summary

                                        Pediatric PFIC (PEDFIC)

                                            24-Week Treatment

                                                 Odevixibat
                                                                                                                Endpoints
                                                   40 µg/kg/day
                                                        N~20
                                                                                                                FDA
                                                                                                                                                     PEDFIC 2
                                                                                                                • Assessment of change            Rollover cohort
                                                                                                                  in pruritus                      extension trial
     62 Subjects
                                                 Odevixibat                                                     EMA
      Target 60                R                  120    µg/kg/day                                              • Serum bile acid
    Oral capsule/sprinkle
         Once daily
                                                        N~20                                                      responder rate (reach              PEDFIC 2
                                                                                                                  ≤70 μmol/L or a                Expanded cohort
                                                                                                                  reduction of 70%)             non-PEDFIC 1 eligible
Key Inclusion Criteria:                             Placebo                                                      FDA/EMA: Single Pivotal
Diagnosis of PFIC1 or 2                                 N~20
                                                                                                                  Sufficient to Support
Confirmed BSEP activity
                                                                                                                    NDA/MAA Filings
Serum bile acids ≥100 μmol/L
Pruritus ≥2 on 0-4 scale           Double-Blind, Randomized, Placebo-Controlled
                                   Trial to Demonstrate Efficacy and Safety of
                                   Odevixibat in Children with PFIC
                                                                                                                            Launched Expanded Access Program
                                                                                                                            U.S., Europe, Canada, and Australia

     21                                                        ©2020 Albireo Pharma, Inc. All rights reserved
Proprietary PRUcisionTM Pruritus Measurement Tool
     Rigorously Designed for our Phase 3 Target Population

                             1a. How bad was your worst itching since you
                                       went to bed last night?

                             PRO+ObsRO: 0-4 scales
           • Each response distinguished by pictures, words, numbers and colors
           • Tested with both patients and caregivers
           • Multiple interactions with FDA in development of the tool

22                                   ©2020 Albireo Pharma, Inc. All rights reserved
Planning For Success

        Manufacturing                      Expand Pt. Population                                         Go to Market

▪ Agreed elements of CMC plan w/FDA        ▪ Initiated biliary atresia pivotal trial                ▪ KOL engagement
▪ Planned commercial formulation in Ph3    ▪ Plan to initiate Alagille pivotal trial                ▪ Pricing and access planning
▪ Registration batches on stability        ▪ Evaluate additional indications                        ▪ Patient support program build

   23                                              ©2020 Albireo Pharma, Inc. All rights reserved
Expansion Opportunity: Biliary Atresia

     Presentation             Cause                                    Treatment                Disease Progression

    Age                    Absence of                            Kasai (HPE)                   ~50% of patients
~2 wk-3 mos.               bile ducts                                                         have liver transplant
                                                                                                in first 2 years1
     Failure to thrive                                           Surgery may                    Transplant is definitive
      Acholic stools                                           restore bile flow                      treatment
         Jaundice

                         #1 Cause of Pediatric Liver Transplants
                          Estimated Prevalence 15-20K (U.S./EU)
                                  1Data   on file;2Lykavieris et al. Hepatology, 2005

24                                           ©2020 Albireo Pharma, Inc. All rights reserved
Bile Acids: Significant Impact in Biliary Atresia

                                           Lower sBA Correlated                                                                                      Improved Liver Markers Correlated
                         300                With Improved NLS1                                                                                         With Lower Serum Bile Acids2
Median Serum Bile Acid
Concentration (μmol/L)

                                                                                                                                                                               100                                                   Low Bile AcidsL(≤40
                                                                                                                                                                                                                                                     o w μM)

                                                                                                                                                                    tie nPatients
                                                                                                                                                                                                                                                          B ile A c id s (
                                                                                                                                                                                                                                     High Bile Acids (>40 μM)

                                                                                                                     T w o -Y e a r O u tc o m e s
                                                     227
                         200                                                                                                                                                        80                                                             H ig h B ile a c id s

                                                                                                                                                                          ts )
                                               Death or Liver Transplant

                                                                                                                                                         (% o f p a of
                               Kasai                                                                                                                                                60
                               Surgery   139

                                                                                                                                                     Percentage
                         100                                                                                                                                                        40
                                     110

                                                                                                                                                                                    20
                                                     59                           39
                                  n= 516                  Alive Native Liver
                                                                                                                                                                                     0
                          0
                                                                                                                                                                                             A ALT
                                                                                                                                                                                               LT                GGT         P l a te l e ts     S p le e n
                                 Baseline
                                Baseline        6Month 6
                                                  Months                Last visit*
                                                                         2 years                                                                                                                                 GGT         Platelets            Spleen
                                                                                                                                                                                         (  4 0(≤40
                                                                                                                                                                                                  U /L )   (    55 U /L )   ( 1 5 0 / L ) ( 2 c m b e l o w
                                                                                                                                                                                                                 (≤55        (≥150/ηL) c(≤2       cm below
                                                                                                                                                                                                                                              o sta l r e g i o n )
                                                                                                                                                                                               U/L)              U/L)                        costal region)

     sBA Reduction Correlated With Sustained Improvements Post-Kasai (HPE) Over 2 Yrs.

                                               ALT, alanine aminotransferase; GGT, gamma-glutamyl transferase; HPE, hepatoportoenterostomy; sBA, serum bile acids.
                                                                     1. Data on file; 2. Harpavat et al. Hepatology. 2018;68(suppl 1):85A–86A.
             25                                                                        ©2020 Albireo Pharma, Inc. All rights reserved
BOLD: Precedent-Setting Biliary Atresia Pivotal Trial

                         Biliary Atresia and the Use of Odevixibat in Treating Liver Disease (BOLD)

                                            24-Month Treatment

                                                     Odevixibat
                                                     120 µg/kg/day
                                                        N= 100                                              Primary Endpoint
~200 Subjects
Post-Kasai HPE                                                                                              Proportion of patients who              Rollover cohort
 Oral capsule/sprinkle
                                      R                                                                     are alive and have not                  Extension Trial
      Once daily                                                                                            undergone a liver transplant
                                                       Placebo
                                                        N= 100
                                                                                                              FDA/EMA: Single Pivotal
Key Inclusion Criteria:                                                                                      Sufficient to Support Filing
Clinical Diagnosis of BA
Age at Kasai HPE ≤ 90 days
Randomized within 3 weeks          Double-Blind, Randomized, Placebo-Controlled Trial
                                   to Evaluate the Efficacy and Safety of Odevixibat in
                                   Children with BA who have undergone Kasai HPE
                                                                                                                         ~70 global sites will be initiated

   26                                                      ©2020 Albireo Pharma, Inc. All rights reserved
Expansion Opportunity: Alagille Syndrome

                            Genetic                                                           Disease
     Presentation                                                         Impact
                            Disorder                                                        Progression

        Age               Autosomal                               Paucity of              Many patients
     ~4-12 Mos.           dominant                                bile ducts             may need a liver
                                                                                           transplant
       Multiple              Multiple
      Symptoms             Organ Impact                                                  Disease can stabilize
                                                                                     ?

                    Initiation of Planned Pivotal Trial by EOY 2020
                     FDA and EMA Agreement on Protocol Design
                         ▪ Estimated prevalence 3-5K (U.S./EU)
                      ▪ Orphan designations received in U.S. and EU
27                                  ©2020 Albireo Pharma, Inc. All rights reserved
Odevixibat: Expanding Development Across Pediatric CLDs

                                                                                                                 Pediatric
                                                                                                               Liver Disease
                                                                                                  Other Rare     Franchise
                                                                                                  CLDs
                                                                    Alagille

                               Biliary                                                    Other
                               Atresia                                                    Indications
                                                    Planned
                                                    pivotal trial
                                                    initiation by
                                                    EOY 2020
             PFIC      Pivotal trial
                       initiated H1 2020

            Mid-2020 topline
            Ph.3 results
            anticipated

28                                       ©2020 Albireo Pharma, Inc. All rights reserved
Commercialization Strategy

        U.S. Launch                      EU Launch                          RoW Strategy

     Identify Patients           Focused Medical                            Robust Country
                                    Presence                                 Prioritization

        Competitive                  Strong Market                           Strong Local
          Profile                        Access                                Partners

      Drive Access to       Flexible Commercial
     Accelerate Uptake           Operations

29                         ©2020 Albireo Pharma, Inc. All rights reserved
DRAFT
                                Odevixibat Go-to-Market Plan

                                          PFIC Ph3 Results                                                                      U.S./EU Launch

     2019                              2020                                                                            2021

Completed                                                 Hire Field
Commercial                  Account Mapping                                                        Hire and Train Field Teams
                                                         Management
 Activities      Doctors
Key                                                              Data Presentations & Publications
Commercial
Hires
Physician,                                                                       Hire Account           Scientific            Finalize
Patient &                   Value Story and Economic Models
                                                                                     Team               Exchange              Pricing
Payer            Market
Research         Access
                                                                                                                     Product Supply
                                  Early Access Programs & Distribution Planning
PFIC Voices                                                                                                            Readiness
& Advocacy
Market Access
Strategy                                                                                            Hire and Train Case
                                  Develop Patient Support Program
Global Market                                                                                            Managers
Prioritization   Patients

Brand Name                                  Expand PFIC Awareness Campaign and Ongoing Advocacy

    30                                            ©2020 Albireo Pharma, Inc. All rights reserved
Unencumbered Global Rights and Strong Patent Estate

        ▪ Method of Use Patent Expiration 2034*
              • 3 patents, 10+ claims targeted to PFIC
              • Multiple Orange-Book listable patents for PFIC and CLDs
        ▪ Orphan exclusivity in the U.S. (7 yrs.) and EU (10+2yrs.)
        ▪ Composition of Matter 2025*

                                              Strength of Method-of-Use Patents
WEAK                                                                                                                                       STRONG

                                             Unmet Need              New Use                               Pediatric and   New Chemical
       Formulations
                                                                                                             Orphan         Entity (NCE)
  Routes of Administration
                                                                                                            Population
        *with PTE and pediatric extensions
   31                                                     ©2020 Albireo Pharma, Inc. All rights reserved
High Unmet Need and Compelling Opportunity

     ▪ Pediatric Cholestasis: orphan indications with no approved drug
     ▪ PEBD: strong clinical rationale for potential benefit of IBAT inhibition
     ▪ Odevixibat: serum bile acids, pruritus, low diarrhea in pediatric Ph.2 trial
     ▪ Three Pivotal Programs: PFIC, biliary atresia, Alagille syndrome
     ▪ Exclusivity Position: orphan drug designations (U.S.-7/EU-12* years);
       COM 2022/25**; MOU for specified cholestatic liver diseases, 2031/34**
     ▪ Attractive P&L: modest commercial infrastructure required, few target Rx’ers

                             *Assumes execution of agreed PIP **Natural expiry/with potential PTE
32                                             ©2020 Albireo Pharma, Inc. All rights reserved
Multiple Upcoming Milestones Anticipated

Odevixibat PFIC: PEDFIC 1 Phase 3 topline data                                                  Mid 2020
Odevixibat Alagille syndrome: Initiate planned pivotal program                                 EOY 2020
Elobixibat NASH: Japan Phase 2 trial topline data                                            EOY 2020/1Q’21
Odevixibat PFIC: Potential approval and launch                                                  2H 2021

33                                          ©2020 Albireo Pharma, Inc. All rights reserved
Hope for Children
with Orphan Liver
Diseases
Through Bile Acid Modulation

August 2020
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