JP MORGAN January 2020 - ObsEva

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JP MORGAN January 2020 - ObsEva
JP MORGAN
CONFERENCE

January 2020
JP MORGAN January 2020 - ObsEva
2
DISCLAIMER

Matters discussed in this presentation may constitute forward-looking statements. The forward-looking statements contained in this
presentation reflect our views as of the date of this presentation about future events and are subject to risks, uncertainties, assumptions, and
changes in circumstances that may cause our actual results, performance, or achievements to differ significantly from those expressed or
implied in any forward-looking statement. Although we believe that the expectations reflected in the forward-looking statements are
reasonable, we cannot guarantee future events, results, performance, or achievements. Some of the key factors that could cause actual
results to differ from our expectations include our plans to develop and potentially commercialize our product candidates; our planned clinical
trials and preclinical studies for our product candidates; the timing of and our ability to obtain and maintain regulatory approvals for our
product candidates; the extent of clinical trials potentially required for our product candidates; the clinical utility and market acceptance of our
product candidates; our commercialization, marketing and manufacturing capabilities and strategy; our intellectual property position; and our
ability to identify and in-license additional product candidates. For further information regarding these risks, uncertainties and other factors
that could cause our actual results to differ from our expectations, you should read our Annual Report on Form 20-F for the year ended
December 31, 2018, as filed with the Securities and Exchange Commission on March 5, 2019 and our other filings we make with the
Securities and Exchange Commission from time to time. We expressly disclaim any obligation to update or revise the information herein,
including the forward-looking statements, except as required by law. Please also note that this presentation does not constitute an offer to sell
or a solicitation of an offer to buy any securities.
This presentation concerns products that are under clinical investigation and which have not yet been approved for marketing by the U.S.
Food and Drug Administration. It is currently limited by federal law to investigational use, and no representation is made as to its safety or
effectiveness for the purposes for which it is being investigated. The trademarks included herein are the property of the owners thereof and
are used for reference purposes only. Such use should not be construed as an endorsement of such products.
This presentation also contains estimates and other statistical data made by independent parties and by us relating to market size and growth
and other data about our industry. This data involves a number of assumptions and limitations, and you are cautioned not to give undue
weight to such estimates. In addition, projections, assumptions and estimates of our future performance and the future performance of the
markets in which we operate are necessarily subject to a high degree of uncertainty and risk.
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F O C U S E D O N U N M E T N E E D S I N W O M E N ’ S H E A LT H

        LINZAGOLIX                           OBE022                           NOLASIBAN

 Potential to relieve symptoms      Potential to delay preterm birth   Potential to improve live birth
from heavy menstrual bleeding      to improve newborn health and         rate following IVF & ET
due to uterine fibroids and pain        reduce medical costs                  (repositioning)
 associated with endometriosis
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 M U LT I P L E L AT E - S TA G E P R O G R A M S T O D R I V E VA L U E

                                                PHASE 1                  PHASE 2        PHASE 3        MARKET SIZE          MILESTONES

  LINZAGOLIX                                                                                      ~4M women diagnosed       Positive 24W primary endpoint
                                        Uterine Fibroids – Ph3 PRIMROSE 2 EU & U.S. *             and treated in U.S.       results
  (OBE2109)
                                                                                                                            24W primary endpoint data
  Oral GnRH                             Uterine Fibroids – Ph3 PRIMROSE 1 U.S.                                              Q2:20
  receptor antagonist
                                                                                                                            MAA/NDA: Q4:20 / Q1:21

                                                                                                  ~5M women diagnosed       Initiated Ph3 in Q2:19
                                        Endometriosis – Ph3 EDELWEISS 2 U.S.
                                                                                                  and treated in U.S.

                                        Endometriosis – Ph3 EDELWEISS 3 EU & U.S.                                           Positive Phase 2b results in
                                                                                                                            2018/19
                                        Endometriosis – Ph2b EDELWEISS

  OBE022                                Preterm Labor – Ph2a PROLONG *
                                                                                                  500,000 annual cases in   Interim update in 60 patients
                                                                                                  each of U.S and Europe    Q1:20
  Oral PGF2α
  receptor antagonist
                                        Preterm Labor – Ph1
                                                                                                                            Pre-clinical/Phase 1 complete

  NOLASIBAN                             IVF – Ph3 IMPLANT 2/4 EU
                                                                                                  Resuming development      Positive IMPLANT 2 Ph3 Results
  Oral oxytocin                                                                                   > 2M IVF Global           IMPLANT 4 Ph3 missed primary
  receptor antagonist                                                                             cycles/year               endpoint
                                        IVF – Ph 1/2 in China                                                               Partnership with Yuyuan
                                                                                                                            BioScience Technology (PRC)

* Primary and secondary endpoints met
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2 0 2 0 C ATA LY S T S

Multiple value driving catalysts in the upcoming year
 Two ongoing Phase 3 linzagolix trials in uterine fibroids to generate
  additional data starting in Q2:20
 First linzagolix regulatory filing in uterine fibroids planned for late 2020
 Phase 2 results of OBE022 expected in 2H:20
 Corporate objective to establish commercial partnerships for Linzagolix
  that maximize compound value and prudently manage cash investments
 Resuming Nolasiban in IVF – YUYUAN Ltd (CHINA) partnership –
  aiming at assessing higher and longer exposure to nolasiban around
  embryo transfer in a potentially “enriched” IVF population
JP MORGAN January 2020 - ObsEva
Linzagolix (OBE2109)

OPTIMIZING APPROACH FOR
R E D U C I N G E S T R O G E N T O T R E AT
UTERINE FIBROIDS AND ENDOMETRIOSIS
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LINZAGOLIX: DOSE-DEPENDENT REDUCTION OF ESTROGEN
T O T R E AT U T E R I N E F I B R O I D S & E N D O M E T R I O S I S
Validated MoA: Inhibition of endogenous GnRH signaling

   Linzagolix binds competitively to
                                                         GnRH
    pituitary gland GnRH receptors                                           Hypothalamus

   Prevents receptor activation by
    endogenous GnRH                                                          Anterior pituitary gland

                                                       GnRH
      ‒ Induces neither downregulation nor           antagonist                           FSH, LH
        desensitization of the receptors
   Immediate onset of action leads to
    rapid, dose-dependent suppression of
    gonadotropins, LH and FSH                               Estradiol                          Ovary

   Gonadotropin suppression leads to a
    dose-dependent decrease in blood
    estradiol concentration
                                                                        Uterus
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 LINZAGOLIX: PK PROFILE

                                                                                                                     Linzagolix                                              Orilissa (Elagolix)                                              Relugolix
                                                                                                                           75 mg                                                          150 mg
                                           Endometriosis                                                                                                                                                                                     40 mg with ABT
                                                                                                                200 mg with ABT                                       400 mg (200 BID) with ABT
                                                                                                                    100 mg
   Dose options                            Uterine Fibroids                                                                                                           600 mg (300 BID) with ABT                                              40 mg with ABT
                                                                                                                200 mg with ABT

                                           Dosing frequency / day                                                           1x                                                1x             or             2x                                   1x

                                           Half-Life                                                               14-15 hours                                                        2-6 hours                                              37-42 hours

                                           Bioavailability                                                               > 80%                                                        30 – 50%                                                   11%

      PK                                                                                                              Moderate                                                            Major                                                 Major
                                           Hepatic Elimination
 Characteristics
                                           Food Effect                                                                       No                                                             No*                                                  Yes

                                           CYP3A4 induction
                                                                                                                             No                                                             Yes                                                  No
                                           (ABT, contraception)

Note: The data on this page are not from head-to-head comparisons.
* In a dedicated food effect study using a single 200 mg dose, there was a decrease of 24% and 36% in AUC and Cmax, respectively, under high-fat meal conditions; however, labelling states elagolix can be taken without regard to meals.
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UTERINE FIBROIDS: A LARGE
MARKET WITH UNMET NEED

Total U.S. costs
estimated at up to
                                 9 million 70%+
$34B
from direct costs, lost
                       /yr
                                 women in the U.S.
                                 suffer from fibroids
                                                             of women have
                                                             fibroids by age 50

workdays and complications

Quality
of Life
                                       600,000
                                       Hysterectomies are performed
                                       annually in the U.S.
                                                                         > 4 million
                                                                          women in the U.S.
Premenopausal women may                                                   are treated annually
experience heavy menstrual
bleeding, anemia, bloating,
infertility, pain and swelling
                                       300,000                            for fibroids
                                       Are because of uterine fibroids
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 MARKET FEEDBACK
 W H AT M AT T E R S F O R U T E R I N E F I B R O I D S PAT I E N T S ?

  Method                        Discreet choice modeling based on the responses of 101 U.S. patients
                                with symptomatic uterine fibroids
                                Rank ordered perceived incremental value of the
                                tested component levels in UF patients choice
                                    Pain                      Bleeding          Need                                 Hot             Daily
                                                                                                Amenorrhea
                                  Reduction                  Reduction         for ABT                             Flushes          Intake
                                            In 8 /10
                                            pts
                                                                                                                                                    The ‘full package’ is
                                                                    In 8 /10                                                                    1
                                            In 6 /10
                                                                    pts              No need
                                                                                                                                                    required to win
                                            pts                                                         In 8 /10
                                                                                                        pts              In 1 /10
                    Gain in                                                                                              pts              QD
                                                                                                                                                    ABT matters for
                      utility
                    values
                                                                    In 6 /10
                                                                                                        In 6 /10                                2
                  from the
               least to the
                                                                    pts
                                                                                                        pts
                                                                                                                         In 3 /10
                                                                                                                                                    women
                      most                                                                                               pts
                   positive
                 perceived
                     levels
                                     0.0    In 4 /10          0.0   In 4 /10   0.0   Required     0.0   In 4 /10   0.0   In 5 /10   0.0   BID
                                            pts                     pts                                 pts              pts

               Utility values are calculated for each attribute level to express their perceived relative value for patients
               when choosing the UF treatment they would prefer to receive instead of the current/latest one

Source: AplusA US patient research (n = 101), Oct-Dec 2019
11
 PRIMROSE 1 & 2: PHASE 3 CLINICAL TRIALS FOR THE
 T R E AT M E N T O F U T E R I N E F I B R O I D S
 The trial was powered under the assumption of a 30% placebo response rate based on historical studies
                                                                                  Primary Endpoint:
                                                                              Responder-HMB Reduction
                     Main Study (N=500, 100/arm)                                     Q4:19/Q2:20                               Follow up

                                                                                                  Placebo + placebo add-back
PRIMROSE 1
100% U.S. sites                               Placebo + placebo add-back                          200mg + add-back

                                              100 mg + placebo add-back                           100 mg + placebo add-back

                         Screening            100 mg + add-back                                   100 mg + add-back            Follow-up

                                              200 mg + placebo add-back                           200 mg + add-back

                                              200 mg + add-back                                   200 mg + add-back

                                              Placebo + placebo add-back                          200 mg + add-back
PRIMROSE 2
70% European sites                            100 mg + placebo add-back                           100mg + placebo add-back
30% U.S. sites
                                              100 mg + add-back                                   100 mg + add-back
                         Screening                                                                                             Follow-up
                                              200 mg + placebo add-back                           200 mg + add-back

                                              200 mg + add-back                                   200 mg + add-back
                        8-14 Weeks                         24 Weeks                                             28 Weeks       24 Weeks

                                               Aiming to support the registration of two regimens of administration
12
 PRIMROSE 2: DEMOGRAPHIC AND BASELINE
 CHARACTERISTICS

                                                                               Linzagolix      Linzagolix    Linzagolix     Linzagolix
                                                                 Placebo        100 mg       100 mg + ABT     200 mg       200 mg + ABT       Total

Full Analysis Set                                                 n=102           n=97          n=101          n=103           n=98          n=501

Age (years) - mean (SD)                                         42.9 (5.3)     43.4 (5.4)     42.5 (5.1)     42.7 (5.8)     43.1 (4.8)     42.9 (5.3)

BMI (kg/m2 ) - mean (SD)                                       26.83 (5.42)   27.44 (5.67)   27.22 (5.82)   26.82 (5.55)   26.80 (5.47)   27.02 (5.57)

Hb < 10 g/dL – n(%)                                             14 (13.7)      21 (21.6)      16 (15.8)      18 (17.5)      24 (24.5)      93 (18.6)

Hb < 12 g/dL – n(%)*                                            51 (50.0)      61 (62.9)      59 (58.4)      57 (55.3)      56 (57.1)      284 (56.7)

MBL** (mL) at baseline
                                                                218 (128)      246 (161)       193 (92)      219 (136)      212 (142)      218 (134)
mean (SD)

95% Caucasian / 5% Black

* Anemia = hemoglobin value is less than less than 12.0 g/dL
** MBL: Menstrual Blood Loss
13
 PRIMROSE 2 PHASE 3 – UTERINE FIBROIDS
 DOSE-DEPENDENT SUPPRESSION OF E2

                                                              Placebo        Linzagolix 100 mg   Linzagolix 100 mg + ABT
                                                                             Linzagolix 200 mg   Linzagolix 200 mg + ABT
                                                                   120

                                           Median serum E2 pg/mL
                                                                   100

                                                                   80
               E2 range: symptom relief
               without BMD harm
                                                                   60

                         E2 Target Range                           40

                                                                   20

                                                                    0
                                                                         0    4       8     12       16      20      24
                                                                                           Weeks

ABT = Add Back Therapy (ActivellaTM )
P R I M R O S E 2 – P R I M A RY E N D P O I N T A C H I E V E D F O R B O T H                                        14

 TA R G E T D O S I N G R E G I M E N S – R E S P O N D E R * A N A LY S I S

                                                               P
15
K E Y S E C O N D A RY E N D P O I N T S A C H I E V E D

     Key Secondary
                                                                                         Measurement                        p-value
     Endpoints

     Reduction in menstrual                    • Time to reduced menstrual blood loss (i.e., ≤80 mL and ≥50%               p < 0.001
     blood loss                                  reduction from baseline) up to Week 24
                                               • Number of days of uterine bleeding for the last 28-day interval prior     p < 0.001
                                                 to Week 24

     Amenorrhea                                • Percentage at Week 24                                                     p < 0.001
                                               • Time to amenorrhea up to Week 24                                          p < 0.001

     Improvement in anemia                     • Hemoglobin level at week 24 in anemic subjects (defined as                p < 0.001
                                                 subjects with Hb < 12 g/dL at baseline)

     Reduction in pain                         • Change from baseline pain score at week 24                                p < 0.001

     Reduction in volume                       • Fibroid volume change from baseline at Week 24 for 100mg without        p < 0.055/0.008
                                                 ABT and 200mg with ABT
                                               • Uterine volume change from baseline at Week 24                            p < 0.001

     Improvement in                            • Change from baseline health-related quality of life (UFS-QoL*) at         p < 0.001
     quality of life                             Week 24

* UFS-QoL = Uterine Fibroids Symptoms and Health-Related Quality of Life questionnaire
16
 PRIMROSE 2: SIGNIFICANT AMENORRHEA RESPONSE
 F O R B O T H TA R G E T D O S E S

                                                                    p
17
 P R I M R O S E 2 : PA I N R E D U C T I O N A N D PAT I E N T
 S AT I S FA C T I O N F O R B O T H TA R G E T D O S E S
                                         Pain Reduction                 Patient Global Impression of Improvement
                                                                                    p=0.047   p
R E C E N T T R I A L S O F G n R H A N TA G O N I S T S I N U T E R I N E F I B R O I D S                                                                                                                18

                                                                                   Caution advised when comparing across clinical trials. Below data are not head-to-head
                                                                                   comparison, and no head-to-head trials have been completed, nor are underway

                                                                                            Linzagolix                                                Relugolix                       Elagolix
                                                                                         PRIMROSE 2                                        LIBERTY 1          LIBERTY 2    ELARIS 1              ELARIS 2
       Mean Age (y)                                                                               43.1                                       41.3                  42.1      42.6                  42.5
       Baseline Menstrual Blood Loss
                                                                                                   212                                        229                  227       238                   229
       (mL per cycle)
       Dose                                                                             200mg + ABT                                                  40mg + ABT                     300mg + ABT
       Regimen                                                                           Once daily                                                   Once daily                     Twice daily
       Responder² Rate (RR) (%)                                                                   93.9                                       73.4                  71.3      68.5                  76.5
          Placebo-adjusted RR (%)                                                                 64.5                                       54.8                  56.5      60.0                  66.0
       Amenorrhea (%)                                                                             80.6                                       52.3                  50.4      48.1                  52.9
          Placebo-adjusted RR (%)                                                                 68.8                                       46.8                    -       43.7                  48.2
       Pain                                                                                                                                                               NR                    NR
       Fibroid Volume                                                                                                                                                     NR                    NR
       Uterine Volume                                                                                                                                                     NR                    NR
       Menstrual Blood Loss                                                                                                                                                                    
       Anemia                                                                                                                                                                                  
       Quality of Life                                                                                                                                                                         

       BMD Loss (%, Spine)                                                                        -1.31                                      -0.36                 -0.13    -0.76                  -0.61

Source: Company information – Note: NR = not reported.
² PRIMARY ENDPOINT: Proportion of women with menstrual blood loss ≤ 80 mL (by alkaline hematin method) and ≥ 50% reduction from baseline
19
S U M M A RY O F A D V E R S E E V E N T S

                                        Placebo           Linzagolix          Linzagolix     Linzagolix    Linzagolix     Total
    Treatment emergent                                     100 mg              100 mg         200 mg        200 mg
   adverse events, n (%)                                                        + ABT                        + ABT

                                          n=105               n=99               n=102         n=104         n=101        n=511

  Subjects with at least                  47 (44.8)           50 (50.5)          45 (44.1)     62 (59.6)     51 (50.5)   255 (49.9)
  one TEAE

  Vascular disorders*                       6 (5.7)           15 (15.2)          12 (11.8)     36 (34.6)     14 (13.9)    83 (16.2)

  * Vascular disorders include hot flushes, hypertension, flushing, varicose veins

      Most common TEAEs (>5%)
           ‒ Hot flushes (13.9%)
           ‒ Anemia (10.4%)
           ‒ Headache (6.8%)
P R I M R O S E 2 B M D % C H A N G E F R O M B A S E L I N E AT W E E K 2 4                                                                                                                         20

C O N S I S T E N T W I T H I N D I C AT I V E R E F E R E N C E S
                                                    Placebo                    Linzagolix 100 mg                                     Linzagolix 100 mg + ABT
                                                                               Linzagolix 200 mg                                     Linzagolix 200 mg + ABT
                                                              2                                                                                                 ELAGOLIX/MPA
                                                                                                                                                                “The absence of significant bone
                                                                                                                                                                loss was supported if the lower

                                          from baseline BMD
                                                                                                                                                                bounds of the CIs for the mean
                                            Mean % change
                                                              0                                                                                                 percentage change in BMD were
                                                                                                                                                                ≥−2.2% for both the spine and
                                                                                                                                                                femur at week 24, which was
                                                                                                                                                                selected to reflect recommendations
                                                              -2                                                                                                from the FDA (internal
                                                                                                                                                                communication)”*

                                                              -4
                                                                                                                                                                ELAGOLIX NDA Review 2018
                                                                                                                                                                “FDA considers BMD loss of ≤
                                                                                                                                                                3% to be within the variability of
                                                              -6                                                                                                DXA measurement.”
                                                                     Lumbar                                   Femoral                                   Total
                                                                      spine                                     neck                                     hip
                                                                   Patients in the trial received no vitamin D or calcium supplementation

* Carr B, Dmowski PD, O’Brien C, Jiang P, Burke J, Jimenez R, et al. Elagolix, an oral GnRH antagonist, versus subcutaneous depot medroxyprogesterone
acetate for the treatment of endometriosis: Effects on bone mineral density. Reproductive Sciences 2014; 21(11): 1341-51.
21
P R I M R O S E 2 : B M D D ATA I N T E R P R E TAT I O N ( I )

Literature supports relationship between BMD, RACE & BMI

Race is one of the most important determinants of BMD
    Blacks consistently reported to have higher BMD than other races1,2
        ‒ Unadjusted LS/FN BMDs 7-12% & 14-24% higher in black vs white women6
    Caucasian race is a known risk factor for lower BMD and fracture3,4,5

Body weight and body mass index (BMI) are positively correlated with BMD
and protective against bone loss7-15
    Low body weight or BMI is a risk factor for low bone mass and increased bone loss
    In some studies, weight more predictive than BMI
 LS=lumbar spine
 FM=femoral neck
                                                                                                  7Qiao D et al, Public Health 2019;180:22-28; 8Cao J, Journal of Orthopaedic Surgery and Research 2011; 6(30); 9Albala C et al, Int J
 1Powe EC et al, NEJM 2013; 369(21); 2Looker AC et al, Osteoporos Int 2009; 20:1141–1149
 3Cosman et al, Journal of Bone and Mineral Research. 2007; 22:S2; V34-38; 4Gourlay; J Bone
                                                                                                  Obes Relat Metab Disord 1996; 20:1027–32; 10Asomaning K et al, J Women's Health 2006; 15:1028–34; 11Nielson CM et al, J Bone
                                                                                                  Miner Res 2012; 27:1-10; 12Kim SJ et al; J Bone Metab 2012; 19(2):95-102; 13Finkelstein J et al; J Clin Endocrinol Metab 2008; 93(3);
 Metab 2014; 21:61-68; 5Cauley JA et al, JAMA 2005; 293:2102-2108; 6Finkelstein J et al, J Clin
                                                                                                  81-868; 14Lo J et al, Obstet Gynecol Clin N Am 2011; 38(3): 503-517; 15Dolan E et al, Nutrition Reviews 2017; 75(10):858-870
 Endocrinol Metab. 2002; 87(7):3057-3067
22
P R I M R O S E 2 : B M D D ATA I N T E R P R E TAT I O N ( I I )

Study populations not similar for risk of BMD loss

                            PRIMROSE 2 –
                                                    PRIMROSE 2           PRIMROSE 1            ELARIS-I   ELARIS-2   LIBERTY 1   LIBERTY 2
                              OVERALL
                                                      US Only              US only              (ELGX)     (ELGX)      (RLGX)      (RLGX)
                            POPULATION

Subjects
(n)
                                  501                     48                  526                 308       283        255         254

Black
(%)
                                 5.2%                    52%                64.3%              68/66%     67/66%      42/41%      42/42%

Age
                              42.9 (5.3)             41.8 (5.6)           41.6 (5.9)            41/42      42/42      42/41       42/42
(mean year/SD)
Height
                              165.5 (6.1)            165.7 (6.8)                -                   -        -           -           -
(mean cm/SD)
Weight
                            74.06 (15.90)          91.48 (19.78)                -                   -        -           -           -
(mean Kg/SD)
BMI
                             27.02 (5.57)           33.29 (6.95)         32.70 (6.84)           34/33      34/33      32/31       32/31
(mean /SD)

PRIMROSE 1 trial – read-out 24 weeks – 2Q:20
In the overall population in the PRIMROSE 2 trial, the non-ABT group, BMD loss inversely related to BMI
23
ENDOMETRIOSIS: AN
E M O T I O N A L LY A N D P H Y S I C A L LY
PA I N F U L C O N D I T I O N

Total U.S. costs
estimated at up to
                               176 million 60%
$22B                /yr
                               women worldwide suffer
                               from endometriosis
                                                                   of women will feel
                                                                   symptoms by age 16

Quality
of Life
                                Endometriosis affects up to

                                10%          in the general
                                             population
                                                                   5 million
                                                                   women in the U.S.
Premenopausal women may
experience pelvic pain, pain
during intercourse and
                                50%          in the infertile
                                             population
                                                                   are treated annually
                                                                   for endometriosis
defecation, infertility and
emotional distress              60%          in patients with
                                             chronic pelvic pain
24
E D E LW E I S S P H A S E 2 B –                          Endometriosis Patients
ENDOMETRIOSIS: DOSE-                                        Week 24 Modeled E2 Data
DEPENDENT SUPPRESSION
OF E2                                   E2
                                   concentration
                                      (pg/ml)

                                       120                               Linzagolix
                                                                           75mg
                                       100
                                                                                                         Linzagolix
     10% / 90% percentile)                                                                                 200mg
   E2 range: Symptom relief
     (whiskers represent                 80
      without BMD harm
                                         60

           Target Range                  40

                                         20

                                          0
                                                   25mg      50mg              75mg             100mg      200mg

                                                      Linzagolix Daily Dose (mg) for 24 Weeks
                                                             (whiskers represent 10% / 90% percentile)
25
  P H A S E 2 B E D E LW E I S S C L I N I C A L T R I A L :                                                                          Enrollment 328 patients, ~65/arm
                                                                                                                                      50 sites in U.S. (n=177)
  E N D O M E T R I O S I S PAT I E N T S                                                                                             14 sites in EU (n= 151)

                                                                                                    MAIN STUDY                                           FOLLOW UP

                                                                               PRIMARY ENDPOINT:                             SECONDARY ENDPOINT:
                                                                      VRS PAIN SCORE RESPONDER RATE                                  BMD**                 RESULTS:
                                                                                 JUNE 2018                                       SEPTEMBER 2018             1H 2019

                                                                  PLACEBO
                                                                  50mg daily                                      50mg daily
                                                                                                                                                          FOLLOW-UP
                                                                  75mg daily                                      75mg daily
        LEAD-IN
                                                                 100mg daily                                     100mg daily
                                                                 200mg daily                                     200mg daily                         OPTIONAL EXTENSION:
                                                                 75mg daily*                                *Titrated dose 50-100mg                   6M + 6M FOLLOW-UP

     8–14 WEEKS                                                       12 WEEKS                                    12 WEEKS                                   24 WEEKS

* Titration after 12 weeks based on E2 serum level at weeks 4 and 8       **BMD: Bone Mineral Density
26
  LINZAGOLIX PHASE 2B ENDOMETRIOSIS:
  KEY DOSES MET EFFICACY ENDPOINTS

                                                                                                                           Dysmenorrhea (%)
                                                      Overall Pelvic Pain (%)                                                   Responder (0-3 VRS)
                                                                 Responder (0-3 VRS)                                              Plc     75mg   200mg

                                                                   Plc       75mg         200mg                                     78,9                     84,1
                                                                                                             77,3          68,2
                                                                                                    70,8                                              58,3
                                                                                                                                        ***
                                               61,5                                                                        ***
                                                                 56,3                                               28,5
                                                 **                                                                                              0
                             34,5                                  *
                                                                                                                       Week 12                       Week 24

                                                                                                                    Non-menstrual Pelvic Pain (%)
                                                                                                                                Responder (0-3 VRS)
                                            Week 12                                                Week 24                        Plc     75mg   200mg
                                                                                                                                                      72,9 72,7
                                                                                                                           58,5
                                                                                                                                    47,7
      Potential point of differentiation as 75mg partial suppression dose is                                       37,1    *

       nearly as effective as 200mg full suppression dose
                                                                                                                       Week 12                       Week 24

* p value
27
     P H A S E 2 B E D E LW E I S S T R I A L
     7 5 m g E F F E C T I V E W I T H O U T S I G N I F I C A N T LY A F F E C T I N G B M D

                                                   Mean % change in BMD from baseline to 24 weeks (12 weeks for placebo)

                                                   Lumbar Spine                        Total hip            Femoral neck

                                                     75mg                 200mg

                                                                                                                           Placebo

                                                                                                                           50mg

                                                                                                                           75mg FD

                                   -1.6% lower                                                                             100mg
                                   bound Cl for
                                      75mg                                                                                 200mg

                                                           -3.6% lower
                                                           bound Cl for
                                                              200mg

                                                                                  Error bars are 95% CIs

*   ABT: Add Back Therapy (estradiol + norethindrone acetate)
28
LINZAGOLIX PHASE 3 ENDOMETRIOSIS TRIALS:
E D E LW E I S S 2 A N D 3

                                  MAIN STUDY                              FOLLOW UP

                      CO-PRIMARY ENDPOINT:
                 DYS/ NMPP RESPONDER ANALYSIS

               INITIATED 1H:19                        75mg daily

                 PLACEBO                          200mg daily + ABT
                                                                          FOLLOW-UP
 LEAD-IN         75mg daily                           75mg daily

              200mg daily + ABT                   200mg daily + ABT

             6 MONTHS TREATMENT                6 MONTHS EXTENSION STUDY
11±5 WEEKS                                                                  6 MONTHS
29
LINZAGOLIX: A SIGNIFICANT OPPORTUNITY

LINZAGOLIX is the only GnRH antagonist intended to be developed
as two different, SIMPLE & WELL TOLERATED regimens for both indications

  1    Large markets with significant unmet need in U.S.
        ~ 4M treated for heavy menstrual bleeding resulting from uterine fibroids
        ~ 5M treated for endometriosis associated pain

  2    Potentially best-in-class GnRH antagonist
        Best-in-class response for HMB control in uterine fibroids and pain
         control in endometriosis with full suppression option
                                                                                      Differentiated regimen
        Only option under development for women with uterine fibroids who
         cannot or do not want to take ABT in both indications                           offering compelling
        Convenient, oral, once-daily dosing                                         commercial proposition

  3    Significant revenue opportunity
        IP protection beyond 2036
OBE022

P O T E N T I A L T O D E L AY P R E T E R M B I R T H
T O I M P R O V E N E W B O R N H E A LT H A N D
REDUCE MEDICAL COSTS
31
P R E T E R M D E L I V E RY: L I F E A LT E R I N G & C O S T LY
Babies surviving early birth face greater likelihood of lifelong disabilities

Preterm labor is the

LEADING
CAUSE
of death of children
                             more
                             than    1in10 1million
                             babies are born               premature
under 5 years of age         premature                     deaths in 2015

Tremendous avoidable medical & societal cost

$50K $195K $26B+ $16.9B+
Average cost      Average cost per    U.S.               U.S. Infant
for a preterm     survivor infant     economic           medical
infant (U.S.)     born 24-26 weeks    burden             care costs
32
M O D E O F A C T I O N O F P G F 2  R E C E P T O R A N TA G O N I S T T O
CONTROL PRETERM LABOR

                           Phospholipids

                          Arachidonic Acid

          PGHS -1/2 = COX1/2

                                                                 Selectively   Has the potential to
                               PGH2                              blocks the    treat preterm labor
                                                        OBE022   PGF2         with improved
                                                                 receptor      safety over NSAIDs
               PGE2                          PGF2
                                               x
                 EP1            EP2
                                               FP
                 EP3            EP4

UTERUS:        contract         relax        contract
33
O B E 0 2 2 : P R O L O N G P H 2 A S T U D Y PA R T B

    Dosing: 7 days up                                   Study design:
       to 60 patients                                   Double-blind, randomized Atosiban + OBE022
  Followed thru delivery                                versus Atosiban + Placebo
                                         Main Study
                                         completion
                                         120 patients
        Interim        Interim
        Update         Update
           30             60                            Endpoint:
        patients       patients                         Complete 7 days of dosing without delivery

           Final Part B: Main analysis                      24-month Infant FU

Q1:18                                     2H:20                                              2H:22
                   IDMC Reviews
34
                                                              34
FINANCIAL OUTLOOK

                                                     2020
SEPTEMBER 30, 2019 CASH:
                                      investment includes
$91 million                              FOUR ONGOING
                                            Phase 3 trials:
E X P E C T E D C A S H R U N W AY:

Q1:21 with                                    PRIMROSE 1
credit facility                               PRIMROSE 2
                                             EDELWEISS 2
                                             EDELWEISS 3
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