KENILWORTH, N.J., Feb. 16, 2021 — MSD (NYSE: MRK), a trade name of Merck & Co., Inc, Kenilworth, NJ, USA., today announced new leadership for its Human Health business. Arpa Garay will lead Human Health Global Marketing, Jannie Oosthuizen will lead Human Health U.S., and MSD is recruiting externally to fill the Human Health International role. In the interim, Deepak Khanna will lead Human Health International. These three positions will sit on the Executive Team and report directly to Robert M. Davis, chief executive officer and president, MSD. These appointments will be effective Feb. 28, 2022.

“Our human health business has a remarkable track record of operational excellence, strategic execution and strong results, and our deep bench of global talent has made that possible,” said Mr. Davis. “These appointments will enable us to build on this momentum, develop our internal talent and expand our high performing senior leadership team. I am confident that this structure will help to further focus and optimize our business operations and ensure we are well positioned to achieve our business goals and continue to save and improve lives.”

Arpa Garay, Human Health Global Marketing

Arpa Garay will lead Human Health Global Marketing, with responsibility for MSD’s long-term strategy across the human health portfolio. Prior to this role, Garay led Global Marketing and Digital for Oncology, and previously led Global Marketing for Pharmaceuticals, Commercial Analytics and Digital Marketing from 2019 to 2021. Garay joined MSD in 2006 and has served in a wide range of commercial and marketing roles with increasing responsibility. Before joining MSD, Garay was a consultant with Monitor Deloitte.

Jannie Oosthuizen, Human Health U.S.

Jannie Oosthuizen will lead Human Health U.S., with P&L responsibility for MSD’s largest business. Prior to this role, Oosthuizen led Global Marketing for Oncology, and previously led MSD’s business in Japan from 2016 to 2020. Oosthuizen joined MSD in 2014 to lead oncology in Asia Pacific and Latin America. Prior to MSD, Oosthuizen spent 20 years at Eli Lilly in a wide range of commercial and marketing roles with increasing responsibility.

Deepak Khanna, Human Health International

Deepak Khanna will lead Human Health International on an interim basis, with P&L responsibility for MSD’s human health business in more than 100 markets outside of the U.S. Khanna currently leads Human Health EUCAN (Europe and Canada), a role he has held since 2021. Prior to this role, Khanna led Oncology for Europe, Middle East, Africa and Canada from 2013 to 2020. Khanna joined MSD in 1988 in field sales and has served in a wide range of commercial and marketing roles with increasing responsibility.

About MSD

For over 130 years, MSD has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. MSD is a trade name of Merck & Co., Inc., with headquarters in Kenilworth, N.J., U.S.A. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, MSD continues to be at the forefront of research to prevent and treat diseases that threaten people and animals — including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases — as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit www.msd.com and connect with us on Twitter, LinkedIn and YouTube.

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

Media Contacts:

Melissa Moody 215-407-3536

Johanna Herrmann 617-216-6029

Investor Contacts:

Peter Dannenbaum 908-740-1037

Steve Graziano 908-740-6582

KENILWORTH, N.J., Jan. 20, 2022 – MSD (NYSE: MRK), a trade name of Merck & Co., Inc, Kenilworth, NJ, USA., announced today that Frank Clyburn, executive vice president and president, Human Health, will leave MSD on Feb. 1, 2022, to assume a leadership opportunity with another company. Leadership of Human Health following Frank’s departure will be announced in the coming weeks.

“I am extremely appreciative of Frank’s significant contributions to our company during his fourteen years with MSD. Frank has been a key catalyst for value creation, an incredible business strategist, a dedicated people leader and a fierce advocate for patients everywhere,” said Robert M. Davis, chief executive officer and president, MSD. “Frank’s strategic and operational excellence helped establish MSD as a global leader in oncology. Our human health business has delivered strong and sustainable growth under Frank’s leadership, and we are well-positioned to continue this momentum with the strong human health team we have in place.”

 Clyburn joined MSD in 2008 and held several leadership positions with increasing responsibility throughout his MSD career. In March 2021, Clyburn was named president of Human Health. Previously, Clyburn served as chief commercial officer for Human Health, and was the president of MSD’s global oncology business. During his time at MSD, he also managed multiple global pharmaceutical franchises, including diabetes, cardiovascular and women’s health, and led numerous marketing and sales teams.

About MSD

For over 130 years, MSD has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, MSD continues to be at the forefront of research to prevent and treat diseases that threaten people and animals — including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases — as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit www.msd.com and connect with us on Twitter, LinkedIn and YouTube.

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

Media Contacts:

Melissa Moody 215-407-3536

Johanna Herrmann 617-216-6029

Investor Contacts:

Peter Dannenbaum 908-740-1037

Steve Graziano 908-740-6582

KENILWORTH, N.J. & MIAMI, Dec. 22, 2021 – MSD (NYSE: MRK), a trade name of Merck & Co., Inc, Kenilworth, NJ, USA., and Ridgeback Biotherapeutics today announced that the United Kingdom Government will purchase an additional 1.75 million patient courses of molnupiravir (MK-4482), an investigational oral antiviral COVID-19 medicine. In the U.K., LAGEVRIO® is the planned trademark for molnupiravir; the trademark for molnupiravir in other countries has not been approved. With this additional procurement agreement, which follows a previously announced agreement for 480,000 courses of treatment, the U.K. Government has now committed to purchase a total of 2.23 million courses of molnupiravir.

In early November, molnupiravir received conditional marketing authorization in the U.K. for the treatment of mild to moderate COVID-19 in adults with a positive SARS-CoV-2 diagnostic test and who have at least one risk factor for developing severe illness. Molnupiravir is currently available in the U.K. and patients have started to receive treatment. An application for Emergency Use Authorization for molnupiravir is under review by the U.S. Food and Drug Administration.

MSD has entered into advance purchase and supply agreements for molnupiravir with governments of more than 30 countries worldwide, including 21 agreements with countries in Europe.

About MSD’s Global Efforts to Accelerate Access to Molnupiravir Following Regulatory Authorizations or Approvals

Global access has been a priority for MSD and Ridgeback since the inception of their molnupiravir collaboration. The companies are committed to providing timely access to molnupiravir globally through our comprehensive supply and access approach, which includes investing at risk to produce millions of courses of therapy; tiered pricing based on the ability of governments to finance health care; entering into supply agreements with governments; and granting voluntary licenses to generic manufacturers and to the Medicines Patent Pool to make generic molnupiravir available in more than 100 low- and middle-income countries following local regulatory authorizations or approvals.

Supply: In anticipation of the results from MOVe-OUT and the potential for regulatory authorization or approval, MSD has been producing molnupiravir at risk and expects to produce 10 million courses of treatment by the end of 2021, with at least 20 million courses to be produced in 2022. To date, MSD has shipped molnupiravir to 12 countries; in countries where it is approved or authorized, patients have begun to receive the drug.

Supply agreements: MSD entered into a procurement agreement with the U.S. Government under which the company will supply approximately 3.1 million courses of molnupiravir to the U.S. Government, upon Emergency Use Authorization or approval from the U.S. Food and Drug Administration. MSD has entered into advance purchase and supply agreements for molnupiravir with governments for over 30 countries worldwide, including Australia, Canada, Korea, Japan, Thailand, United Kingdom and United States, pending regulatory authorizations, and is currently in discussions with additional governments. MSD plans to implement a tiered pricing approach based on World Bank country income criteria to reflect countries’ relative ability to finance their health response to the pandemic.

Voluntary licenses: As part of its commitment to widespread global access, MSD previously announced that it has entered into a licensing agreement with the Medicines Patent Pool to increase broad access for molnupiravir in low- and middle-income countries. Additionally, MSD previously announced that the company has entered into non-exclusive voluntary licensing agreements for molnupiravir with established generic manufacturers to accelerate availability of molnupiravir in more than 100 low- and middle-income countries following approvals or emergency authorization by local regulatory agencies.

MSD continues to discuss additional measures and collaborations to accelerate broad, global access to molnupiravir.

About Molnupiravir

Molnupiravir (MK-4482) is an investigational, orally administered form of a potent ribonucleoside analog that inhibits the replication of SARS-CoV-2, the causative agent of COVID-19. Molnupiravir has been shown to be active in several preclinical models of SARS-CoV-2, including for prophylaxis, treatment, and prevention of transmission. Pre-clinical data suggest that molnupiravir has a high barrier to the development of resistance.

Molnupiravir was studied as a single medicine (i.e., without the need for co-administered medicines to achieve therapeutic effect). Based on available data, no food intake restrictions or dose modifications based on renal or hepatic impairment are necessary, and no known drug interactions with molnupiravir have been identified.

Results from the Phase 3 MOVe-OUT study demonstrated the efficacy benefit of molnupiravir treatment was generally consistent across patients infected with SARS-CoV-2 variants of concern, Delta, Gamma and Mu. Preliminary preclinical data has shown that molnupiravir has antiviral activity against the newly identified variant, Omicron (B1.1.529). Molnupiravir has yet to be evaluated against Omicron in clinical studies.

Molnupiravir was invented at Emory University. Drug Innovation Ventures at Emory (DRIVE), LLC, which was formed by Emory to develop early-stage drug candidates for viral diseases of global concern, advanced molnupiravir through IND submission. Emory/DRIVE received some research funding from the U.S. Department of Defense and the U.S. National Institutes of Health. Molnupiravir is being developed by MSD in collaboration with Ridgeback Biotherapeutics. Ridgeback received an upfront payment from MSD and also is eligible to receive contingent payments dependent upon the achievement of certain developmental and regulatory approval milestones. Any profits from the collaboration will be split between the partners equally. Since licensed by Ridgeback, all funds used for the development of molnupiravir have been provided by MSD and Ridgeback.

Molnupiravir was evaluated in MOVe-OUT, a global Phase 3, randomized, placebo-controlled, double-blind, multi-site study of non-hospitalized adult patients with symptomatic, laboratory-confirmed mild to moderate COVID-19 and at least one risk factor associated with poor disease outcomes. Molnupiravir is also being evaluated for post-exposure prophylaxis in MOVe-AHEAD, a global, multicenter, randomized, double-blind, placebo-controlled Phase 3 study evaluating the efficacy and safety of molnupiravir in preventing the spread of COVID-19 within households. For more information, please visit http://msdcovidresearch.com. Please visit the MSD media library for molnupiravir images and b-roll.

About Ridgeback Biotherapeutics

Headquartered in Miami, Florida, Ridgeback Biotherapeutics LP is a biotechnology company focused on emerging infectious diseases. Ridgeback markets EbangaTM for the treatment of Ebola and has a late-stage development pipeline which includes molnupiravir for the treatment of COVID-19. The team at Ridgeback is dedicated to developing life-saving and life-changing solutions for patients and diseases that need champions as well as providing global access to these medicines. In line with Ridgeback’s mission for equitable global access, all Ridgeback services and treatment for Ebola patients in Africa are delivered free of charge.

About MSD

For over 130 years, MSD has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, MSD continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit www.msd.com and connect with us on Twitter, LinkedIn and YouTube.

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA.

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline candidates that the candidates will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

Media Contacts:

Melissa Moody 215-407-3536

Courtney Ronaldo 908-442-5695

Ridgeback Media Contact:

Chrissy Carvalho Chrissy@goldin.com

Investor Contacts:

Peter Dannenbaum 908-740-1037

Raychel Kruper 908-740-2107

KENILWORTH, N.J. & MIAMI, Dec. 16, 2021 – MSD (NYSE: MRK), a trade name of Merck & Co., Inc, Kenilworth, NJ, USA., and Ridgeback Biotherapeutics today announced the New England Journal of Medicine has published findings from the Phase 3 MOVe-OUT trial evaluating molnupiravir, an investigational oral antiviral medicine, in non-hospitalized high risk adults with mild to moderate COVID-19. Data from MOVe-OUT demonstrated that early treatment with molnupiravir significantly reduced the risk of hospitalization or death in high risk, unvaccinated adults with COVID-19. MSD is developing molnupiravir in collaboration with Ridgeback Biotherapeutics.

Molnupiravir is authorized in the United Kingdom as the first oral antiviral for the treatment of mild to moderate COVID-19 in adults with a positive SARS-CoV-2 diagnostic test and who have at least one risk factor for developing severe illness. The European Medicines Agency (EMA) issued a positive scientific opinion for molnupiravir under Article 5.3 Regulation 726/2004, which is intended to support national decision-making on the possible use of molnupiravir prior to marketing authorization. Regulatory applications are under review or are in the process of being submitted, including applications for Emergency Use Authorization (EUA) by the U.S. Food and Drug Administration (FDA) and Japan’s Ministry of Health, Labor and Welfare.

“In MOVe-OUT, molnupiravir significantly reduced the risk of hospitalization and death among a diverse population of patients at risk for more severe COVID-19. The increases in COVID-19 cases, hospitalizations and deaths being reported globally are a stark reminder that new tools are urgently needed, which is why we are moving with speed and rigor to obtain authorizations and to accelerate broad global access to this investigational medicine for appropriate patients,” said Dr. Dean Y. Li, president, MSD Research Laboratories. “Importantly, we observed consistent efficacy among patients with more common variants at the time, and more recent preclinical evidence indicates that molnupiravir has antiviral activity against Omicron, which is encouraging considering the uncertain future of a rapidly evolving virus such as SARS-CoV-2.”

“The publication of these positive results in the New England Journal of Medicine demonstrates that molnupiravir, which was studied as a single medicine that can be taken at home – regardless of food intake, with no known drug-drug interactions and without required dose modifications for those with kidney or liver impairment – has the potential to be a valuable addition to the therapeutic options available to fight COVID-19,” said Wendy Holman, chief executive officer, Ridgeback Biotherapeutics. “We are grateful for the efforts of the clinical trial participants and investigators and will continue to study molnupiravir for the treatment and prevention of COVID-19.”

“One of the hallmarks of the MOVe-OUT study is the diverse patient population, which included adults from 20 countries, with one or more risk factors such as obesity, advanced age, diabetes and serious heart conditions. Based on this study, molnupiravir has the potential to have a meaningful impact for patients, healthcare systems and public health,” said Dr. Monica Gomes, Universidade Federal do Paraná, Brazil.

About the MOVe-OUT Study

The MOVe-OUT trial (MK-4482-002) (NCT04575597) was a global Phase 3, randomized, placebo-controlled, double-blind, multi-site study of non-hospitalized adult patients with laboratory-confirmed mild to moderate COVID-19. The primary efficacy objective of MOVe-OUT is to evaluate the efficacy of molnupiravir 800 mg twice daily for five days compared to placebo as assessed by the percentage of patients who are hospitalized and/or die through Day 29.

Patients enrolled in the study had at least one risk factor associated with poor disease outcomes (age >60 years; active cancer; chronic kidney disease; chronic obstructive pulmonary disease; obesity; serious heart conditions; or diabetes mellitus), and symptom onset within five days prior to study enrollment. Key exclusion criteria were an anticipated need for hospitalization for COVID-19 within the next 48 hours, dialysis or estimated glomerular filtration rate less than 30 ml per minute per 1.73 m2, unwillingness to use contraception during the intervention period and for at least 4 days after completion of the regimen, severe neutropenia (absolute neutrophil count of <500 per milliliter), platelet count below 100,000 per microliter, any prior SARS-CoV-2 vaccination and pregnancy. The potential impact of molnupiravir on fetal development if taken during pregnancy is unknown. Standard-of-care treatment with antipyretic agents, anti-inflammatory agents, glucocorticoids, or a combination was permitted; use of therapies intended as COVID-19 treatments (including any monoclonal antibodies and remdesivir) was prohibited through Day 29.

In the all randomized analysis, 47.7% of patients had onset of signs or symptoms three days or less before randomization and 44.5% had moderate COVID-19. The most common risk factors were obesity (73.7%), age over 60 years (17.2%) and diabetes mellitus (15.9%). Presence of baseline SARS-CoV-2 nucleocapsid antibodies was assessed centrally using the Elecsys® assay. Positive baseline SARS-CoV-2 antibodies, indicating recent/prior infection (not vaccination), were reported for 19.8% of patients. Due to the ongoing nature of testing, the viral variant type at baseline was not available for 25.9% of randomized patients in the interim analysis sample and 44.7% of randomized patients in the all randomized sample at the time of the publication. Among the all randomized population with sequence data available (55.3%), the three most common SARS-CoV-2 variants were Delta (58.1%), Mu (20.5%) and Gamma (10.7%).

Positive top-line results from the interim analysis were previously announced on Oct. 1, and recruitment into the study was stopped early at the recommendation of an independent Data Monitoring Committee and in consultation with the FDA. At the interim analysis, which was the primary analysis timepoint of the study, superiority was demonstrated as treatment with molnupiravir reduced hospitalizations and death: 14.1% (53/377) of patients in the placebo group were hospitalized or died, compared to 7.3% (28/385) of patients who received molnupiravir who were hospitalized; at the interim analysis, no patients who took molnupiravir died through Day 29, compared to eight patients who received placebo. The absolute risk reduction was 6.8 percentage points (95% CI: 2.4, 11.3; p=0.001, one-sided), which is approximately a 50% relative reduction in the risk of hospitalization or death through Day 29 for molnupiravir compared with placebo. In the all randomized analysis (n=1433), molnupiravir had a lower risk of hospitalization or death through Day 29: 9.7% (68/699) of patients in the placebo group compared to 6.8% (48/709) of patients in the molnupiravir group, for an absolute risk reduction of 3.0% (95% CI: 0.1, 5.9) and a relative risk reduction of 30%. The efficacy benefit with molnupiravir treatment was generally consistent across important patient subgroups, including patients infected with SARS-CoV-2 variants of concern, Delta, Gamma and Mu. Nine deaths were reported in the placebo group (29-day all-cause mortality rate of 1.3%) and one in the molnupiravir group (29-day all-cause mortality rate of 0.1%), representing a relative reduction in the risk of death of 89% (95% CI: 14, 99).

As in previous trials, no safety concerns with molnupiravir were identified, and there was no evidence of a pattern of clinically meaningful abnormalities in laboratory test results. The incidence of any adverse event (AE) was comparable in the molnupiravir and placebo groups (30.4% and 33.0%, respectively). The incidence of drug-related AEs was also comparable (8.0% and 8.4%, respectively), and a lower percentage of patients in the molnupiravir group discontinued therapy due to an AE compared to the placebo group (1.4% and 2.9%, respectively). Serious AEs, none of which were deemed drug-related by the investigator, were less frequently reported among patients treated with molnupiravir. Through Day 29, one death was reported in patients who received molnupiravir, as compared to nine deaths in the placebo arm. After Day 29, three additional deaths resulting from adverse events occurred in the placebo group compared with one additional death reported in the molnupiravir group.

About MSD’s Global Efforts to Accelerate Access to Molnupiravir Following Regulatory Authorizations or Approvals

Global access has been a priority for MSD and Ridgeback since the inception of their molnupiravir collaboration. The companies are committed to providing timely access to molnupiravir globally through our comprehensive supply and access approach, which includes investing at risk to produce millions of courses of therapy; tiered pricing based on the ability of governments to finance health care; entering into supply agreements with governments; and granting voluntary licenses to generic manufacturers and to the Medicines Patent Pool to make generic molnupiravir available in more than 100 low- and middle-income countries following local regulatory authorizations or approvals.

Supply: In anticipation of the results from MOVe-OUT and the potential for regulatory authorization or approval, MSD has been producing molnupiravir at risk and expects to produce 10 million courses of treatment by the end of 2021, with at least 20 million courses to be produced in 2022.

Supply agreements: MSD entered into a procurement agreement with the U.S. Government under which the company will supply approximately 3.1 million courses of molnupiravir to the U.S. Government, upon Emergency Use Authorization or approval from the U.S. Food and Drug Administration. MSD has entered into advance purchase and supply agreements for molnupiravir with governments and announced agreements for over 20 countries worldwide, including Australia, Canada, Korea, Japan, Thailand, United Kingdom and United States, pending regulatory authorizations, and is currently in discussions with additional governments. MSD plans to implement a tiered pricing approach based on World Bank country income criteria to reflect countries’ relative ability to finance their health response to the pandemic.

Voluntary licenses: As part of its commitment to widespread global access, MSD previously announced that it has entered into a licensing agreement with the Medicines Patent Pool to increase broad access for molnupiravir in low- and middle-income countries. Additionally, MSD previously announced that the company has entered into non-exclusive voluntary licensing agreements for molnupiravir with established generic manufacturers to accelerate availability of molnupiravir in more than 100 low- and middle-income countries following approvals or emergency authorization by local regulatory agencies.

MSD continues to discuss additional measures and collaborations to accelerate broad, global access to molnupiravir.

About Molnupiravir

Molnupiravir (MK-4482 and EIDD-2801) is an investigational, orally administered form of a potent ribonucleoside analog that inhibits the replication of SARS-CoV-2, the causative agent of COVID-19. Molnupiravir has been shown to be active in several preclinical models of SARS-CoV-2, including for prophylaxis, treatment, and prevention of transmission. Pre-clinical data suggest that molnupiravir has a high barrier to the development of resistance.

Molnupiravir is being studied as a single medicine, without the use of concomitant medicines and without food intake restrictions or dose modifications based on renal or hepatic impairment. Based on available data, no known drug interactions with molnupiravir have been identified.

Molnupiravir was invented at Emory University. Drug Innovation Ventures at Emory (DRIVE), LLC, which was formed by Emory to develop early-stage drug candidates for viral diseases of global concern, advanced molnupiravir through IND submission. Emory/DRIVE received some research funding from the U.S. Department of Defense and the U.S. National Institutes of Health. Molnupiravir is being developed by MSD in collaboration with Ridgeback Biotherapeutics. Ridgeback received an upfront payment from MSD and also is eligible to receive contingent payments dependent upon the achievement of certain developmental and regulatory approval milestones. Any profits from the collaboration will be split between the partners equally. Since licensed by Ridgeback, all funds used for the development of molnupiravir have been provided by MSD and Ridgeback.

Molnupiravir was evaluated in MOVe-OUT, a global Phase 3, randomized, placebo-controlled, double-blind, multi-site study of non-hospitalized adult patients with symptomatic, laboratory-confirmed mild to moderate COVID-19 and at least one risk factor associated with poor disease outcomes. The Phase 3 portion of the MOVe-OUT trial was conducted globally in more than 170 sites in locations including Argentina, Brazil, Canada, Chile, Colombia, Egypt, France, Germany, Guatemala, Israel, Italy, Mexico, Philippines, Poland, Russia, South Africa, Spain, Sweden, Taiwan, Ukraine, the United Kingdom and the United States. For further information about the MOVe-OUT trial, please visit clinicaltrials.gov. Molnupiravir is also being evaluated for post-exposure prophylaxis in MOVe-AHEAD, a global, multicenter, randomized, double-blind, placebo-controlled Phase 3 study evaluating the efficacy and safety of molnupiravir in preventing the spread of COVID-19 within households. For more information, please visit http://msdcovidresearch.com. Please visit the MSD media library for molnupiravir images and b-roll.

About Ridgeback Biotherapeutics

Headquartered in Miami, Florida, Ridgeback Biotherapeutics LP is a biotechnology company focused on emerging infectious diseases. Ridgeback markets EbangaTM for the treatment of Ebola and has a late-stage development pipeline which includes molnupiravir for the treatment of COVID-19. The team at Ridgeback is dedicated to developing life-saving and life-changing solutions for patients and diseases that need champions as well as providing global access to these medicines. In line with Ridgeback’s mission for equitable global access, all Ridgeback services and treatment for Ebola patients in Africa are delivered free of charge.

About MSD

For over 130 years, MSD has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, MSD continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit www.msd.com and connect with us on Twitter, LinkedIn and YouTube.

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA.

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline candidates that the candidates will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

Media Contacts:

Melissa Moody 215-407-3536

Courtney Ronaldo 908-740-6132

Ridgeback Media Contact:

Chrissy Carvalho Chrissy@goldin.com

Investor Contacts:

Peter Dannenbaum 908-740-1037

Raychel Kruper 908-740-2107

KENILWORTH, N.J., Dec. 13, 2021 – MSD (NYSE: MRK), a trade name of Merck & Co., Inc, Kenilworth, NJ, USA, today announced its inaugural issuance of a $1 billion sustainability bond, which was part of an $8 billion underwritten public offering of notes that closed on Dec. 10, 2021.

MSD’s environmental, social and governance (ESG) efforts are grounded in the core values that have always guided the company’s mission to invent for life, with a responsibility to patients and animals in need of medicines and vaccines, and with respect, inclusion and accountability to its employees. The company’s 130-year legacy has been built on the understanding that operating responsibly, enabling access to health for the patients and communities it serves, investing in and cultivating the company’s employees, and reducing its impact on the environment underpins the success and long-term sustainability of its business.

“Today’s announcement is an important step to further integrate ESG into the core of our business, accelerate the achievement of our ESG goals, and measure and continue to be transparent about our progress,” said Caroline Litchfield, chief financial officer and executive vice president, MSD.

MSD intends to use the net proceeds from this bond offering to support projects and partnerships in the company’s priority ESG areas and contribute to the advancement of the United Nations Sustainability Development Goals. These company projects and partnerships include:

  • Access to essential services – health care, such as medicines and vaccines, maternal health programs, health care system strengthening, product donations, medical outreach, disaster and emergency relief, and patient assistance programs
  • Infectious disease research and development that includes antimicrobial resistance, neglected and emerging diseases, and sexual and reproductive health
  • Socioeconomic advancement and empowerment, particularly for minority and women-owned business enterprise (MWBE) suppliers, employee diversity and inclusion initiatives, and health literacy programs which serve people of all ages, races, incomes and education levels
  • Renewable energy generation projects such as new onsite or offsite solar or wind generating capacity, as well as electricity generated from renewable sources
  • Energy efficiency expenditures related to the company’s operations, such as energy-efficient heating, ventilation, air conditioning, refrigeration, lighting, roofing or electrical equipment, energy monitoring, control solutions and energy assessments, including smart meters and control automation devices
  • Green buildings, including the design, development, construction and certification costs for new/existing facilities to meet LEED Gold or Platinum standards (or equivalent), as well as those which achieve at least a 30% improvement in energy use or GHG emissions
  • Sustainable water and wastewater management to improve water quality or water efficiency, such as wastewater treatment, recycling and harvesting, overall reductions and reuse
  • Pollution prevention and control projects to reduce and manage emissions to air or water, as well as recycling projects and efforts to divert non-hazardous and/or hazardous waste away from landfills

The bond transaction is in line with MSD’s newly introduced Sustainability Financing Framework, which facilitates the company’s use of sustainable capital markets to finance or refinance eligible projects that align with its ESG commitments. This framework addresses the core components and key recommendations of the Social Bond Principles (2021), Green Bond Principles (2021), and Sustainability Bond Guidelines (2021), all of which are administered by the International Capital Markets Association (ICMA). V.E., a Moody’s affiliate, provided a second party opinion (SPO) on MSD’s Sustainability Financing Framework.

MSD has committed to annual reporting on the allocation of bond net proceeds to actual spend by social and/or environmental category, along with the remaining balance of unallocated proceeds. Where feasible, MSD will report estimated social and/or environmental quantitative impact metrics and provide qualitative case studies on eligible projects. For eligible social projects, MSD will seek to report impact metrics by target population to show how expenditures are enhancing access to the stated target population.

For more information on MSD’s ESG performance, policies and initiatives, please view the company’s 2020/2021 ESG Progress Report.

About MSD

For over 130 years, MSD has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, MSD continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit http://www.msd.com/ and connect with us on Twitter, LinkedIn and YouTube.

Forward-Looking Statement of Merck & Co., Inc., Kenilworth, N.J., USA

This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. Such statements may include, but are not limited to, statements about allocation of the proceeds of the sustainability bond among eligible projects. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of the global outbreak of novel coronavirus disease (COVID-19); the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2020 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

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