UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
CURRENT REPORT
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| Item 7.01 | Regulation FD Disclosure. |
On March 5, 2024, Tonix Pharmaceuticals Holding Corp. (the “Company”) announced the results of modeling key human pharmacokinetic (“PK”) properties for its TNX-1500 (Fc-modified humanized anti-CD40L monoclonal antibody, or mAb) product candidate from animal studies.
The information in this Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.01 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the United States Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference in any filing under the United States Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.
| Item 8.01 | Other Events. |
On March 5, 2024, the Company announced the results of modeling key human PK properties for TNX-1500 from animal studies. Modeling studies from animal PK data predict a half-life of approximately three weeks for TNX-1500 in humans, which supports monthly dosing. This PK analysis, together with TNX-1500’s activity and tolerability in animals, suggests that the protein engineering of TNX-1500’s Fc region has achieved its design goals. The company expects the results of the Phase 1 PK and pharmacodynamic trial in the third quarter of 2024.
The PK study was conducted in six healthy cynomolgus monkeys at 30, 100 and 300 mg/kg and revealed linear PK across those doses, consistent with an antibody with no target mediated drug disposition. The half-life of TNX-1500 in cynomolgus monkeys is approximately 14 days. Human half-life prediction for TNX-1500 was based on allometric scaling for mAbs with linear PK. Clearance in cynomolgus animals was 6.24 ml/day (26.6% C.V.) and the predicted clearance in humans was 141 mL/day (C.V. 22.9%). The predicted human half-life for TNX 1500 is 23.8 days (range of 18.3 to 27.6 days) which supports monthly dosing.
Forward- Looking Statements
This Current Report on Form 8-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and Private Securities Litigation Reform Act, as amended, including those relating to the Company’s product development, clinical trials, clinical and regulatory timelines, market opportunity, competitive position, possible or assumed future results of operations, business strategies, potential growth opportunities and other statement that are predictive in nature. These forward-looking statements are based on current expectations, estimates, forecasts and projections about the industry and markets in which we operate and management’s current beliefs and assumptions.
These statements may be identified by the use of forward-looking expressions, including, but not limited to, “expect,” “anticipate,” “intend,” “plan,” “believe,” “estimate,” “potential,” “predict,” “project,” “should,” “would” and similar expressions and the negatives of those terms. These statements relate to future events or our financial performance and involve known and unknown risks, uncertainties, and other factors which may cause actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such factors include those set forth in the Company’s filings with the SEC. Prospective investors are cautioned not to place undue reliance on such forward-looking statements, which speak only as of the date of this press release. The Company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise.
| Item 9.01 | Financial Statements and Exhibits. |
| (d) |
Exhibit No. |
Description. | ||
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Press Release, dated March 5, 2024 | ||||
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
SIGNATURE
Pursuant to the requirement of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
| TONIX PHARMACEUTICALS HOLDING CORP. | |||
| Date: March 5, 2024 | By: | /s/ Bradley Saenger | |
| Bradley Saenger | |||
| Chief Financial Officer | |||