COCP

EX-99.1

2 ex99-1.htm

EX-99.1

Exhibit 99.1

Cocrystal Pharma Reports 2025 Financial Results and Provides Updates on its Antiviral Drug-Development Programs

●Phase 1b norovirus challenge study is underway at Emory University School of Medicine

●CDI-988

is the first oral antiviral candidate being developed for norovirus treatment and prevention

●No approved treatments or vaccines are available for norovirus infection, posing a significant unmet need and contributing to a global economic burden of $60 billion annually

BOTHELL,

Wash. (March 31, 2026) – Cocrystal Pharma, Inc. (Nasdaq: COCP) (“Cocrystal” or the “Company”) reports financial results for the year ended December 31, 2025, and provides updates on its antiviral product pipeline, upcoming milestones and business activities.

“We are delighted to report that our norovirus human challenge study evaluating efficacy and safety of CDI-988 is underway at Emory University School of Medicine. In our first cohort, healthy subjects are being inoculated with the GII.2 (Snow Mountain Virus) strain under highly controlled conditions,” said Sam Lee, Ph.D., President and co-CEO of Cocrystal.

“Norovirus remains a significant and underserved market. Developing an effective norovirus antiviral or vaccine has been challenging due to the high genetic and antigenic diversity of norovirus and lack of simple in vitro cell-based assays and animal model system,” Dr. Lee continued. “Using our proprietary structure-based drug discovery platform technology, we developed CDI-988 as a direct-acting, oral antiviral that targets a highly conserved region of the viral 3CL protease found in all known norovirus strains. As a pan-viral 3CL protease inhibitor, CDI-988 also holds potential as a broad-spectrum antiviral effective against coronaviruses.”

“Norovirus outbreaks can strike at any time of year in semi-closed environments such as cruise ships, military settings, and healthcare and assisted-living facilities,” said James Martin, Cocrystal’s CFO and co-CEO. “This constant threat underscores the need for an effective oral treatment and preventive that can be deployed whenever and wherever norovirus infections emerge. With CDI-988, our goal is to provide an easy-to-administer, safe and effective drug to combat these unpredictable outbreaks. We believe CDI-988 represents a key value-creating opportunity for our Company and our investors.”

The Phase 1b randomized, double-blind, placebo-controlled study will enroll up to 40 subjects. The study’s primary endpoint is efficacy in reducing the incidence of clinical symptoms; secondary endpoints include reduction of viral shedding and disease severity, and safety and pharmacokinetic profiles.

1

Antiviral Product Pipeline Overview

We leverage our innovative structure-based drug discovery platform technology to develop next-generation, broad-spectrum antivirals that effectively block viral replication. Unlike other drug discovery approaches, our technology identifies compounds that bind to highly conserved regions of viral drug targets, including proteases and replication enzymes. By specifically targeting these essential viral functions, our drug candidates maintain efficacy even as viruses mutate, while simultaneously minimizing off-target interactions that typically lead to adverse side effects. This dual advantage represents a significant breakthrough in antiviral drug development. In addition, our innovative methodology fundamentally transforms the conventional drug discovery paradigm by eliminating the inefficient, resource-intensive cycles of high-throughput compound screening and prolonged hit-to-lead optimization. The result is faster identification of promising candidates with superior resistance profiles and safety characteristics.

Norovirus Program

Norovirus is a common, highly contagious virus that afflicts people of all ages and causes symptoms of acute gastroenteritis including nausea, vomiting, stomach pain and diarrhea, as well as fatigue, fever and dehydration. There are currently no effective treatments or vaccines for norovirus, and the ability to curtail outbreaks is inadequate.

With 685 million global cases annually and a $60 billion worldwide economic impact, norovirus represents one of healthcare’s most pressing unmet needs. In the U.S., noroviruses are responsible for an estimated 21 million infections annually, including an estimated 109,000 hospitalizations, 465,000 emergency department visits and 900 deaths. The annual burden of norovirus to the U.S. is estimated at $10.6 billion. In the developing world, each year noroviruses are responsible for up to 1.1 million hospitalizations and 218,000 pediatric deaths.

Oral protease inhibitor CDI-988 for the treatment of noroviruses and coronaviruses: Our novel, broad-spectrum 3CL protease inhibitor CDI-988 is designed as a potential treatment for noroviruses and coronaviruses. CDI-988 has shown in vitro activity against multiple norovirus strains.

○In April 202

false 0001412486

0001412486

2025-11-14 2025-11-14

iso4217:USD

xbrli:shares

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 20549

FORM

8-K

CURRENT

REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 14, 2025

Cocrystal Pharma, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-38418

35-2528215

(State or other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS

Employer

Identification No.)

19805 N. Creek Parkway

Bothell, WA

98011

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: (877) 262-7123

(Former name or former address, if changed since last report.): n/a

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock

COCP

The Nasdaq Stock Market, LLC

(The Nasdaq Capital Market)

Item 2.02 Results of Operations and Financial Condition

On November 14, 2025, Cocrystal Pharma, Inc. (the “Company”) issued a press release announcing its results of operations for the fiscal quarter ended September 30, 2025 and providing certain business updates. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information in this Item 2.02, and Exhibit 99.1 attached hereto, shall not be deemed “filed” for the purposes of or otherwise subject to the liabilities under Section 18 of the Securities Exchange Act of 1934, as amended. Unless expressly incorporated into a filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, the information contained in this Item 2.02 and Exhibit 99.1 hereto shall not be incorporated by reference into any Company filing, whether made before or after the date hereof, regardless of any general incorporation language in such filing

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

Exhibit

Description

99.1

Press Release dated November 14, 2025

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Cocrystal Pharma, Inc.

Date: November 14, 2025 By: /s/ James Martin

Name: James Martin

Title: Co-Chief Executive Officer and Chief Financial Officer

false 0001412486

0001412486

2025-08-14 2025-08-14

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 20549

FORM

8-K

CURRENT

REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 14, 2025

Cocrystal Pharma, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-38418

35-2528215

(State or other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS

Employer

Identification No.)

19805 N. Creek Parkway

Bothell, WA

98011

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: (877) 262-7123

(Former name or former address, if changed since last report.): n/a

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock

COCP

The Nasdaq Stock Market LLC

(The Nasdaq Capital Market)

Item 2.02 Results of Operations and Financial Condition

On August 14, 2025, Cocrystal Pharma, Inc. (the “Company”) issued a press release announcing its results of operations for the fiscal quarter ended June 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liabilities of that section. Furthermore, the information contained in this Item 2.02 or Exhibit 99.1 shall not be deemed to be incorporated by reference into any registration statement or other document filed pursuant to the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

Exhibit

Description

99.1

Press Release dated August 14, 2025

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Cocrystal Pharma, Inc.

Date: August 14, 2025 By: /s/ James Martin

Name: James Martin

Title: Chief Financial Officer and Co-Chief Executive Officer