Subsequent Events	12 Months Ended
Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Note 10 – Subsequent Events Management evaluated all additional events subsequent to the balance sheet date through the date the consolidated financial statements were issued and determined that the following items are required to be disclosed. Nasdaq Bid Price Requirement Extension Granted until August 26, 2024 On August 31, 2023, after the Company’s common stock had traded below $1.00 per share for 30 consecutive trading days, the Company received notice from the Nasdaq Stock Market LLC (“Nasdaq”) that it was not in compliance with Nasdaq Listing Rule 5550(a)(2) (the “Bid Price Requirement”). In accordance with Nasdaq Rules, the Company was provided with an initial period of 180 calendar days, or until February 27, 2024, to regain compliance with the Bid Price Requirement. On February 19, 2024, the Company submitted a plan of compliance to Nasdaq seeking an additional 180-day grace period to regain compliance with the Bid Price Requirement. On February 29, 2024, the Company received formal approval from Nasdaq granting it an additional 180 days, or until August 26, 2024, to regain compliance – whether organically through market forces or by effectuating a reverse stock split, should such action be required. FDA Approval to Proceed with Phase II study of Ropidoxuridine (IPdR) On January 8, 2024, Shuttle Pharmaceuticals Holdings, Inc., a Delaware corporation (the “Company”), issued a press release announcing that the Company had received the “Safe to Proceed” letter from the U.S. Food and Drug Administration for the Company’s investigational new drug (IND) application for its Phase II study of Ropidoxuridine (IPdR) as a radiation sensitizing agent during radiotherapy in patients with newly diagnosed IDH-wildtype glioblastoma with unmethylated MGMT promoter. Receipt of the letter allows Shuttle to commence the Phase II study and, as a result, the Company is currently finalizing site enrollment with “first patient, first dose” expected in the coming months. Rights Offering Effective February 7, 2024, the Company and its wholly-owned subsidiary, Shuttle Diagnostics, Inc., entered into a securities purchase agreement (the “Purchase Agreement”) with SRO, LLC, a Nevada limited liability company, pursuant to which SRO LLC agreed to commit to purchasing from the Company $2,250,000 of units from the Company, with each Unit consisting of (i) one share of SHPH common stock, (ii) a warrant to purchase one share of SHPH common stock exercisable at a purchase price of $2.35 per share, and (iii) a percentage of equity interest in Diagnostics such that, assuming the sale of all $2,250,000 of Units, SRO LLC will own a 22% interest in Diagnostics. Pursuant to the terms of the Purchase Agreement, the Units will be sold at a per Unit price equal to 90% of the VWAP of SHPH common stock for the five trading days immediately preceding closing. The parties entered into the Purchase Agreement in anticipation of the Company commencing a rights offering (the “Rights Offering”) pursuant to which the Company intends to offer a total of $4,500,000 Units to existing stockholders, which includes the $2,250,000 Units being sold to SRO LLC, an entity which is owned by Keith Moore, CEO of Boustead Securities, LLC (“BSL”). The Purchase Agreement allows SRO LLC up to 60 days to raise the initial $2,250,000, which funds will be placed in escrow with Sutter Securities, Inc. (“SSI”), an affiliate of BSL, pursuant to the terms of an escrow agreement entered into between the Company, Shuttle Diagnostics, Inc., BSL and SSI on February 7, 2024 (the “Escrow Agreement”). The funds will remain in escrow up until closing on the Rights Offering. In addition, in the event the Company fails to raise a full $4,500,000 in the Rights Offering, SRO LLC agreed to a backstop commitment pursuant to which it would have the right to purchase any remaining Units not purchased by existing SHPH stockholders in the Rights Offering, up to an additional $2,250,000 (the “Back-up Contingency”). Unless the parties waive the conditions to closing, in the event the full $4,500,000 is not raised, whether through SRO LLC or through SHPH’s existing stockholders, the Company will not close on the offering and any funds raised and held in escrow will be returned to investors. Restricted Stock Awarded to Chief Financial Officer On March 8, 2024, the CFO was awarded 100,000 restricted stock units (“RSUs”), with a value of $41,840, with such RSUs vesting in full as of the date of issuance. Each RSU represents the right to receive one share of SHPH common stock.

Subsequent Events

12 Months Ended

Dec. 31, 2023

Note 10 – Subsequent Events

Management evaluated all additional events subsequent to the balance sheet date through the date the consolidated financial statements were issued and determined that the following items are required to be disclosed.

Nasdaq Bid Price Requirement Extension Granted until August 26, 2024

On August 31, 2023, after the Company’s common stock had traded below $1.00 per share for 30 consecutive trading days, the Company received notice from the Nasdaq Stock Market LLC (“Nasdaq”) that it was not in compliance with Nasdaq Listing Rule 5550(a)(2) (the “Bid Price Requirement”). In accordance with Nasdaq Rules, the Company was provided with an initial period of 180 calendar days, or until February 27, 2024, to regain compliance with the Bid Price Requirement. On February 19, 2024, the Company submitted a plan of compliance to Nasdaq seeking an additional 180-day grace period to regain compliance with the Bid Price Requirement. On February 29, 2024, the Company received formal approval from Nasdaq granting it an additional 180 days, or until August 26, 2024, to regain compliance – whether organically through market forces or by effectuating a reverse stock split, should such action be required.

FDA Approval to Proceed with Phase II study of Ropidoxuridine (IPdR)

On January 8, 2024, Shuttle Pharmaceuticals Holdings, Inc., a Delaware corporation (the “Company”), issued a press release announcing that the Company had received the “Safe to Proceed” letter from the U.S. Food and Drug Administration for the Company’s investigational new drug (IND) application for its Phase II study of Ropidoxuridine (IPdR) as a radiation sensitizing agent during radiotherapy in patients with newly diagnosed IDH-wildtype glioblastoma with unmethylated MGMT promoter. Receipt of the letter allows Shuttle to commence the Phase II study and, as a result, the Company is currently finalizing site enrollment with “first patient, first dose” expected in the coming months.

Rights Offering

Effective February 7, 2024, the Company and its wholly-owned subsidiary, Shuttle Diagnostics, Inc., entered into a securities purchase agreement (the “Purchase Agreement”) with SRO, LLC, a Nevada limited liability company, pursuant to which SRO LLC agreed to commit to purchasing from the Company $2,250,000 of units from the Company, with each Unit consisting of (i) one share of SHPH common stock, (ii) a warrant to purchase one share of SHPH common stock exercisable at a purchase price of $2.35 per share, and (iii) a percentage of equity interest in Diagnostics such that, assuming the sale of all $2,250,000 of Units, SRO LLC will own a 22% interest in Diagnostics. Pursuant to the terms of the Purchase Agreement, the Units will be sold at a per Unit price equal to 90% of the VWAP of SHPH common stock for the five trading days immediately preceding closing. The parties entered into the Purchase Agreement in anticipation of the Company commencing a rights offering (the “Rights Offering”) pursuant to which the Company intends to offer a total of $4,500,000 Units to existing stockholders, which includes the $2,250,000 Units being sold to SRO LLC, an entity which is owned by Keith Moore, CEO of Boustead Securities, LLC (“BSL”).

The Purchase Agreement allows SRO LLC up to 60 days to raise the initial $2,250,000, which funds will be placed in escrow with Sutter Securities, Inc. (“SSI”), an affiliate of BSL, pursuant to the terms of an escrow agreement entered into between the Company, Shuttle Diagnostics, Inc., BSL and SSI on February 7, 2024 (the “Escrow Agreement”). The funds will remain in escrow up until closing on the Rights Offering. In addition, in the event the Company fails to raise a full $4,500,000 in the Rights Offering, SRO LLC agreed to a backstop commitment pursuant to which it would have the right to purchase any remaining Units not purchased by existing SHPH stockholders in the Rights Offering, up to an additional $2,250,000 (the “Back-up Contingency”). Unless the parties waive the conditions to closing, in the event the full $4,500,000 is not raised, whether through SRO LLC or through SHPH’s existing stockholders, the Company will not close on the offering and any funds raised and held in escrow will be returned to investors.

Restricted Stock Awarded to Chief Financial Officer

On March 8, 2024, the CFO was awarded 100,000 restricted stock units (“RSUs”), with a value of $41,840, with such RSUs vesting in full as of the date of issuance. Each RSU represents the right to receive one share of SHPH common stock.