Form 8-K - Current report

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): October 29, 2024

SHUTTLE PHARMACEUTICALS HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-41488

82-5089826

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

401 Professional Drive, Suite 260

Gaithersburg, MD 20879

(Address of principal executive offices) (Zip Code)

(240) 430-4212

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report.)

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))

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 $0.00001 per share		SHPH		The Nasdaq Stock Market LLC

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

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. ☐

Item 7.01 Regulation FD Disclosure.

On October 29, 2024, Shuttle Pharmaceuticals Holdings, Inc., a Delaware corporation (the “Company”), issued a press release announcing that the first three patients in its Phase 2 clinical trial of Ropidoxuridine for the treatment of patients with glioblastoma have been successfully dosed.

Ropidoxuridine (IPdR) is the Company’s lead candidate radiation sensitizer for use in combination with radiation therapy to treat brain tumors (glioblastoma), a deadly malignancy of the brain with no known cure. The Company has received Orphan Drug Designation from the U.S. Food and Drug Administration, or the FDA, providing potential marketing exclusivity upon first FDA approval for the disease.

A copy of the press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information included in this Item 7.01, including Exhibits 99.1, is furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to liabilities under that section, and shall not be deemed to be incorporated by reference into the filings of the Company under the Securities Act or the Exchange Act, regardless of any general incorporation language in such filings. This Current Report on Form 8-K will not be deemed an admission as to the materiality of any information of the information contained in this Item 7.01, including Exhibits 99.1.

Forward-Looking Statements

This Current Report on Form 8-K contains “forward-looking statements” within the meaning of Section 21E of the Exchange Act and the Private Securities Litigation Reform Act of 1995. Forward-looking statements may relate to statements concerning future results, strategy and plans of the Company (including certain statements which may be identified by the use of the words “plans,” “expects,” “does not expect,” “estimated,” “is expected,” “budget,” “scheduled,” “estimates,” “forecasts,” “intends,” “anticipates,” “does not anticipate” or “believes,” or variations of such words and phrases, or state that certain actions, events or results “may,” “could,” “would,” “might,” “projects,” “will,” “will be taken,” “occur” or “be achieved”). Forward-looking statements are based on the opinions and estimates of management of the Company, as of the date such statements are made, and they are subject to known and unknown risks, uncertainties, assumptions and other factors that may cause the actual results, performance or achievements to be materially different from those expressed or implied by such forward-looking statements. Additional information on these and other factors that may cause actual results and the Company’s performance to differ materially is included in the Company’s periodic reports filed with the Securities and Exchange Commission, or the SEC. Copies of the Company’s filings with the SEC are available publicly on the SEC’s website at www.sec.gov. Readers are cautioned not to place undue reliance upon any forward-looking statements, which speak only as of the date made. These forward-looking statements are made only as of the date hereof, and the Company undertakes no obligations to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.		Description
99.1		Press Release dated October 29, 2024
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.

	SHUTTLE PHARMACEUTICALS HOLDINGS, INC.

Dated: October 29, 2024

	By:	/s/ Anatoly Dritschilo
	Name:	Anatoly Dritschilo
	Title:	Chief Executive Officer

Exhibit 99.1

Shuttle Pharma Doses First Patients in Phase 2 Clinical Trial of Ropidoxuridine for Treatment of Patients with Glioblastoma

GAITHERSBURG, Md., October 29, 2024 — Shuttle Pharmaceuticals Holdings, Inc. (Nasdaq: SHPH) (“Shuttle Pharma”), a discovery and development stage specialty pharmaceutical company focused on improving outcomes for cancer patients treated with radiation therapy (RT), announced today that the first three patients in its Phase 2 Clinical Trial of Ropidoxuridine for the treatment of patients with glioblastoma have been successfully dosed.

Ropidoxuridine (IPdR) is Shuttle Pharma’s lead candidate radiation sensitizer for use in combination with RT to treat brain tumors (glioblastoma), a deadly malignancy of the brain with no known cure. Shuttle has received Orphan Drug Designation from the FDA, providing potential marketing exclusivity upon first FDA approval for the disease.

The Phase 2 clinical trial will be conducted with the most aggressive brain tumors out there – IDH wild-type, methylation negative glioblastoma patients. This particular group of patients at this time only have radiation as the standard of care, with more than half of the patients surviving for less than 12 months after diagnosis. The Phase 2 trial will consist initially of 40 patients randomized into two different doses (20 @ 1,200 mg/day and 20 @ 960 mg/day) to determine an optimal dose. Once the Company determines the optimal dose, it will then add an additional 14 patients on the optimal dose allowing for the achievement of statistical significance with the end point being that of survival compared to historical controls. The Company expects the trial to be completed over a period of 18 to 24 months.

“The initiation of patient dosing in our Phase 2 trial of Ropidoxuridine for the treatment of patients with glioblastoma is a significant milestone for both Shuttle Pharma and the thousands of patients with brain tumors who currently lack effective therapies,” commented Shuttle Pharma’s Chairman and CEO, Anatoly Dritschilo, M.D. “The results of this trial will be important as Shuttle Pharma looks to leverage radiation sensitizers to increase cancer cure rates, prolong patient survival and improve quality of life for patients suffering from glioblastoma.”

An estimated 800,000 patients in the US are treated with radiation therapy for their cancers yearly. According to the American Cancer Society and the American Society of Radiation Oncologists, about 50% are treated for curative purposes and the balance for therapeutic care. The market opportunity for radiation sensitizers lies with the 400,000 patients treated for curative purposes, with this number expected to grow by more than 22% over the next five years.

More information about the Phase 2 study (NCT06359379) can be found at www.clinicaltrials.gov.

About Shuttle Pharmaceuticals

Founded in 2012 by faculty members of the Georgetown University Medical Center, Shuttle Pharma is a discovery and development stage specialty pharmaceutical company focused on improving the outcomes for cancer patients treated with radiation therapy (RT). Our mission is to improve the lives of cancer patients by developing therapies that are designed to maximize the effectiveness of RT while limiting the side effects of radiation in cancer treatment. Although RT is a proven modality for treating cancers, by developing radiation sensitizers, we aim to increase cancer cure rates, prolong patient survival and improve quality of life when used as a primary treatment or in combination with surgery, chemotherapy and immunotherapy. For more information, please visit our website at www.shuttlepharma.com.

Safe Harbor Statement

Statements in this press release about future expectations, plans and prospects, as well as any other statements regarding matters that are not historical facts, may constitute “forward-looking statements.” These statements include, but are not limited to, statements concerning the development of our company. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including factors discussed in the “Risk Factors” section of Shuttle Pharma’s Annual Report on Form 10-K for the year ended December 31, 2023, as amended, filed with the SEC on September 4, 2024, as well other SEC filings. Any forward-looking statements contained in this press release speak only as of the date hereof and, except as required by federal securities laws, Shuttle Pharmaceuticals specifically disclaims any obligation to update any forward-looking statement, whether as a result of new information, future events or otherwise.

Shuttle Pharmaceuticals

Anatoly Dritschilo, M.D., CEO

240-403-4212

info@shuttlepharma.com

Investor Contacts

Lytham Partners, LLC

Robert Blum

602-889-9700

shph@lythampartners.com

Cover	Oct. 29, 2024
Cover [Abstract]
Document Type	8-K
Amendment Flag	false
Document Period End Date	Oct. 29, 2024
Entity File Number	001-41488
Entity Registrant Name	SHUTTLE PHARMACEUTICALS HOLDINGS, INC.
Entity Central Index Key	0001757499
Entity Tax Identification Number	82-5089826
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	401 Professional Drive
Entity Address, Address Line Two	Suite 260
Entity Address, City or Town	Gaithersburg
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	20879
City Area Code	(240)
Local Phone Number	430-4212
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common Stock $0.00001 per share
Trading Symbol	SHPH
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false