ObsEva SA to Participate in September Investor Conferences

Geneva, Switzerland and Boston, MA - August 28, 2018 - ObsEva SA (NASDAQ: OBSV / SIX: OBSN), a clinical-stage biopharmaceutical company focused on the development and commercialization of novel therapeutics for serious conditions that compromise a woman's reproductive health and pregnancy, today announced that Company Management will be participating in the investor conferences listed below.

• The Rodman & Renshaw 20^th Annual Global Investment Conference taking place in New York September 4-6, 2018. ObsEva will be presenting on Wednesday September 5, 2018, at 5:05 p.m. Eastern Time.
• The Baird 2018 Global Healthcare Conference taking place in New York on September 5-6, 2018. ObsEva will be presenting on Thursday September 6, 2018, at 10:50 a.m. Eastern Time.
• BioCentury's 25^th Annual NewsMakers in the Biotech Industry Conference taking place in New York on Friday September 7, 2018. ObsEva will be presenting on Friday September 7, 2018 at 11:30 a.m. Eastern Time.
• Investora 6^th Swiss Small and Mid-Cap Conference taking place in Zürich on September 26-27, 2018. ObsEva will be presenting on Thursday September 27, 2018, at 4.15 p.m. Central Eastern Summer Time.

Rodman & Renshaw and Baird presentation webcasts will be available in the "Investors" section of ObsEva's website www.ObsEva.com.

About ObsEva

ObsEva is a clinical-stage biopharmaceutical company focused on the clinical development and commercialization of novel therapeutics for serious conditions that compromise a woman's reproductive health and pregnancy. Through strategic in-licensing and disciplined drug development, ObsEva has established a late-stage clinical pipeline with development programs focused on treating endometriosis, uterine fibroids, preterm labor and improving IVF outcomes. ObsEva is listed on the NASDAQ Global Select Market and is trading under the ticker symbol "OBSV" and on the SIX Swiss Exchange where it is trading under the ticker symbol "OBSN".

For more information, please visit www.ObsEva.com.

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For further information, please contact:

Media Contact Switzerland and Europe:
Christophe Lamps
Dynamics Group
[e-mail]
[phone] Office
[phone] Mobile

Media Contact U.S.:
Marion Janic
RooneyPartners LLC
[e-mail]
[phone]

CEO Office Contact:
Shauna Dillon
[e-mail]
[phone]

Investor Contact:
Mario Corso
Senior Director, Investor Relations
[e-mail]
[phone] Office
[phone] Mobile

Attachment

• Press Release (https://prlibrary-eu.nasdaq.com/Resource/Download/00a180bb-e60c-40e8-9e4c-67bbee7e5176)