Akebia Therapeutics Reports Fourth Quarter and Full-Year 2019 Financial Results and Hosts Conference Call to Discuss Recent Business Highlights Top-line data readouts of global Phase 3 program for vadadustat on track for

Akebia Therapeutics Reports Fourth Quarter and Full-Year 2019 Financial Results and Hosts Conference Call

to Discuss Recent Business Highlights

CAMBRIDGE, Mass. March 10, 2020 Akebia Therapeutics, Inc. (Nasdaq: AKBA), a biopharmaceutical company focused on the development and

commercialization of therapeutics for people living with kidney disease, today announced financial results for the fourth quarter and full-year ended December 31, 2019. The Company will host a conference call today, Tuesday, March 10,

2020, at 9:00 a.m. Eastern Time to discuss its fourth quarter and full-year 2019 financial results and recent business highlights.

of considerable progress for Akebia and with many milestones on the horizon, 2020 is shaping up to be equally, if not more, exciting, stated John P. Butler, Chief Executive Officer of Akebia. Our highest priority remains

the successful execution of our global Phase 3 program for vadadustat, our investigational oral hypoxia-inducible factor prolyl hydroxylase inhibitor (HIF-PHI). We have a tremendous amount of

confidence in our vadadustat clinical program and believe we ve developed an exciting path forward to drive significant value for all our stakeholders. We believe our ability to potentially access a Priority Review Voucher (PRV) for the

vadadustat New Drug Application (NDA) to expedite FDA review would meaningfully enhance the potential of bringing vadadustat to patients as quickly as possible, subject to regulatory approval.

Butler continued, We look forward to sharing data from our global Phase 3 studies of vadadustat, starting with

top-line data from INNO2VATE on track for the second quarter of 2020 followed by PRO2TECT in mid-2020. We expect vadadustat to be the first drug of the HIF-PHI class to deliver clear data that directly compare its outcomes to the current standard of care in

dialysis-dependent and non-dialysis dependent patients for the treatment of anemia due to chronic kidney disease (CKD).

Agreement with Vifor Pharma regarding a Priority Review Voucher

In February 2020, Akebia entered into a letter agreement with Vifor (International) Ltd. (Vifor Pharma) relating to Vifor Pharma s agreement with a third

party to purchase a PRV issued by the U.S. Food and Drug Administration (FDA), subject to satisfaction of customary closing conditions. Akebia will pay Vifor Pharma $10.0 million following the closing of the PRV purchase. In exchange, Vifor

Pharma is obligated to reserve the PRV for the vadadustat NDA for the treatment of anemia due to CKD in dialysis-dependent and non-dialysis dependent patients until Akebia and Vifor Pharma agree on the

financial and other terms under which it will assign the PRV to Akebia or make a mutual decision to sell the PRV. A PRV entitles the holder to priority review of an NDA or a Biologics License Application for a new drug, which reduces the target FDA

review time to six months after official acceptance of the submission and could lead to expedited approval.

Jason A. Amello, Chief Financial Officer of

Akebia stated, We are pleased to have extended our cash runway well into 2021 through planned, disciplined spending and the identification of operating efficiencies, coupled with the sales of common stock via our At-the-Market facility over the last few months. The Company s cash runway, consistent with previous commentary, includes the receipt of a $15.0 million

regulatory milestone from Mitsubishi Tanabe Pharma Corporation, Akebia s development and commercialization collaboration partner in Japan for vadadustat, assuming approval of vadadustat in Japan.

Fourth Quarter and Full-Year 2019 Financial Results

Akebia will host a conference call at 9:00 a.m. Eastern Time today, Tuesday, March 10th, to discuss its fourth quarter and full-year 2019 financial results and

recent business highlights. To listen to the conference call, please dial (877) 458-0977 (domestic) or (484) 653-6724 (international) using conference ID number 6572299.

The call will also be webcast LIVE and can be accessed via the Investors section of the Company s website at http://ir.akebia.com.

replay of the conference call will be available two hours after the completion of the call through March 16, 2020. To access the replay, dial (855) 859-2056 (domestic) or (404) 537-3406 (international) and reference conference ID number 6572299. An online archive of the conference call can be accessed via the Investors section of the Company s website

at http://ir.akebia.com.

About Akebia Therapeutics

Akebia Therapeutics, Inc. is a fully integrated biopharmaceutical company focused on the development and commercialization of therapeutics for people

living with kidney disease. The Company was founded in 2007 and is headquartered in Cambridge, Massachusetts. For more information, please visit our website at www.akebia.com, which does not form a part of this release.

Vadadustat is an oral hypoxia-inducible factor prolyl hydroxylase (HIF-PH) inhibitor currently in global Phase 3

development for the treatment of anemia due to CKD. Vadadustat is designed to mimic the physiologic effect of altitude on oxygen availability. At higher altitudes, the body responds to lower oxygen availability with stabilization of

hypoxia-inducible factor, which can lead to increased red blood cell production and improved oxygen delivery to tissues. Vadadustat is an investigational therapy and is not approved by the U.S. Food and Drug Administration (FDA) or any

regulatory authority.

Forward-Looking Statements

Statements in this press release regarding Akebia s strategy, plans, prospects, expectations, beliefs, intentions and goals are forward-looking statements

within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, as amended, including but not limited to statements regarding the safety and efficacy of vadadustat, the potential launch of vadadustat, the potential indications for

and benefits of vadadustat, and market size, commercial potential, prevalence, and the growth in, and potential demand for, vadadustat; clinical trial data and results and the anticipated timing of the availability and reporting thereof; access to a

Priority Review Voucher for vadadustat and the agreement relating thereto; the potential to bring vadadustat to patients and the potential timing thereof by utilizing the Priority Review Voucher; potential and anticipated payments from our

collaborators, including the timing thereof; continued funding and advancement of development efforts; and expectations regarding financial position, including the cash runway. The terms anticipate, believe,

expect, opportunity, planned, potential, target, will and similar references are intended to identify forward-looking statements, although not all forward-looking statements

contain these identifying words. Each forward-looking statement is subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied in such statement, including the risk that clinical trials may

not be successful; the risk that existing preclinical and clinical data may not be predictive of the results of ongoing or later clinical trials; manufacturing risks; the quality and manner of the data that will result from clinical studies of

vadadustat; risks associated with the Priority Review Voucher for vadadustat; risks associated with management and key personnel changes and transitional periods; the actual funding required to develop and commercialize our commercial product,

vadadustat and other product candidates and operate the company, and the actual expenses associated therewith; the actual costs incurred in the clinical studies of vadadustat and the availability of financing to cover such costs; the risk that

studies are discontinued or delayed for any reason, including for safety, tolerability, enrollment, manufacturing or economic reasons; market acceptance and coverage and reimbursement of our

commercial product; the risks associated with potential generic entrants for our commercial product; early termination of any of Akebia s collaborations; Akebia s and its collaborators ability to satisfy their obligations under

Akebia s collaboration agreements; the timing and content of decisions made by regulatory authorities; the timing of any additional studies initiated for vadadustat; the actual time it takes to initiate and complete preclinical and clinical

studies; the competitive landscape for our commercial product and vadadustat; the scope, timing, and outcome of any legal, regulatory and administrative proceedings; changes in the economic and financial conditions of the businesses of Akebia and

its partners; the risk that we lose, or settle on less favorable terms, other ANDA litigation, or that other ANDA filers enter the market earlier than March 20, 2025, as well as any other potential settlements; and Akebia s ability to

obtain, maintain and enforce patent and other intellectual property protection for our commercial product, vadadustat and any other product candidates. Other risks and uncertainties include those identified under the heading Risk Factors

in Akebia s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2019 and other filings that Akebia may make with the U.S. Securities and Exchange Commission in the future.

These forward-looking statements (except as otherwise noted) speak only as of the date of this press release, and Akebia does not undertake, and specifically disclaims, any obligation to update any forward-looking statements contained in this press

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