Description of Business, Organization and Liquidity	3 Months Ended
Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business, Organization and Liquidity	1. Description of Business, Organization and Liquidity Kyverna Therapeutics, Inc. (“Kyverna” or “the Company”) is a patient-centered, clinical-stage biopharmaceutical company focused on developing cell therapies for patients suffering from autoimmune diseases. The lead product candidate, KYV-101, is advancing through clinical development across two broad areas of autoimmune disease: rheumatology and neurology. The Company was incorporated on June 14, 2018, was initially named BAIT Therapeutics, Inc., changed its name to Kyverna Therapeutics, Inc. on October 1, 2019, and is headquartered in Emeryville, California. Initial Public Offering On February 7, 2024, the Company’s Registration Statement on Form S-1 for its initial public offering (the “IPO”) was declared effective, and on February 12, 2024, the Company closed the IPO and issued 16,675,000 shares of common stock at a price to the public of $22.00 per share, including 2,175,000 shares issued upon the exercise of underwriters’ option to purchase additional shares of common stock. The Company received gross proceeds of $366.9 million. Net proceeds were $336.2 million, after deducting underwriting commissions and other offering costs totaling $30.7 million. On February 8, 2024, the Company’s common stock began trading on the Nasdaq Global Select Market under the symbol “KYTX”. Immediately prior to the IPO closing, all of the outstanding shares of the Company’s redeemable convertible preferred stock converted into shares of the Company’s common stock on a 1-for-4.5511 basis. Reverse Stock Split On January 30, 2024, the Company’s shareholders approved and the Company effected a reverse stock split of the shares of common stock at a ratio of 1-for-4.5511 (the “Reverse Stock Split”). The number of authorized shares and par value per share were not adjusted as a result of the Reverse Stock Split. All references to shares, restricted stock awards, restricted stock units and options to purchase common stock, share data, per share data, and related information contained in the financial statements have been retrospectively adjusted to reflect the effect of the Reverse Stock Split for all periods presented. The conversion ratios for each series of the Company’s redeemable convertible preferred stock, which was automatically converted into shares of common stock upon the closing of the IPO, were proportionally adjusted. Liquidity The Company has incurred losses and negative cash flows from operations since inception. As of March 31, 2024, the Company has an accumulated deficit of $162.7 million. The Company had net losses of $26.7 million and $11.1 million for the three months ended March 31, 2024 and 2023, respectively. The Company has historically financed its operations primarily through issuances of redeemable convertible preferred stock and convertible notes, revenue from its collaboration agreement and sale of shares of its common stock in the IPO. As of March 31, 2024, the Company had cash and cash equivalents and available-for-sale marketable securities of $369.8 million. The Company expects to continue to incur operating losses and negative cash flows from operations to support the development of its product candidates, to expand its product portfolio and to continue its research and development activities, including preclinical studies and clinical trials. The Company’s activities are subject to significant risks and uncertainties, including the completion of requisite clinical activities to support regulatory approvals, market acceptance of the Company’s product candidates, if approved, as well as the timing and extent of spending on research and development. There can be no assurance that the Company will ever earn revenue or achieve profitability, or if achieved, that the revenue or profitability will be sustained on a continuing basis. Unless and until it does, the Company will need to continue to raise additional capital. Based on its current operating plan, management estimates that its existing cash and cash equivalents and available-for-sale marketable securities balances will be sufficient to fund its operating plan and capital expenditure requirements for at least the next 12 months from the date of this Quarterly Report on Form 10-Q.

Description of Business, Organization and Liquidity

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business, Organization and Liquidity

1. Description of Business, Organization and Liquidity

Kyverna Therapeutics, Inc. (“Kyverna” or “the Company”) is a patient-centered, clinical-stage biopharmaceutical company focused on developing cell therapies for patients suffering from autoimmune diseases. The lead product candidate, KYV-101, is advancing through clinical development across two broad areas of autoimmune disease: rheumatology and neurology. The Company was incorporated on June 14, 2018, was initially named BAIT Therapeutics, Inc., changed its name to Kyverna Therapeutics, Inc. on October 1, 2019, and is headquartered in Emeryville, California.

Initial Public Offering

On February 7, 2024, the Company’s Registration Statement on Form S-1 for its initial public offering (the “IPO”) was declared effective, and on February 12, 2024, the Company closed the IPO and issued 16,675,000 shares of common stock at a price to the public of $22.00 per share, including 2,175,000 shares issued upon the exercise of underwriters’ option to purchase additional shares of common stock. The Company received gross proceeds of $366.9 million. Net proceeds were $336.2 million, after deducting underwriting commissions and other offering costs totaling $30.7 million. On February 8, 2024, the Company’s common stock began trading on the Nasdaq Global Select Market under the symbol “KYTX”. Immediately prior to the IPO closing, all of the outstanding shares of the Company’s redeemable convertible preferred stock converted into shares of the Company’s common stock on a 1-for-4.5511 basis.

Reverse Stock Split

On January 30, 2024, the Company’s shareholders approved and the Company effected a reverse stock split of the shares of common stock at a ratio of 1-for-4.5511 (the “Reverse Stock Split”). The number of authorized shares and par value per share were not adjusted as a result of the Reverse Stock Split. All references to shares, restricted stock awards, restricted stock units and options to purchase common stock, share data, per share data, and related information contained in the financial statements have been retrospectively adjusted to reflect the effect of the Reverse Stock Split for all periods presented. The conversion ratios for each series of the Company’s redeemable convertible preferred stock, which was automatically converted into shares of common stock upon the closing of the IPO, were proportionally adjusted.

Liquidity

The Company has incurred losses and negative cash flows from operations since inception. As of March 31, 2024, the Company has an accumulated deficit of $162.7 million. The Company had net losses of $26.7 million and $11.1 million for the three months ended March 31, 2024 and 2023, respectively.

The Company has historically financed its operations primarily through issuances of redeemable convertible preferred stock and convertible notes, revenue from its collaboration agreement and sale of shares of its common stock in the IPO. As of March 31, 2024, the Company had cash and cash equivalents and available-for-sale marketable securities of $369.8 million. The Company expects to continue to incur operating losses and negative cash flows from operations to support the development of its product candidates, to expand its product portfolio and to continue its research and development activities, including preclinical studies and clinical trials. The Company’s activities are subject to significant risks and uncertainties, including the completion of requisite clinical activities to support regulatory approvals, market acceptance of the Company’s product candidates, if approved, as well as the timing and extent of spending on research and development. There can be no assurance that the Company will ever earn revenue or achieve profitability, or if achieved, that the revenue or profitability will be sustained on a continuing basis. Unless and until it does, the Company will need to continue to raise additional capital. Based on its current operating plan, management estimates that its existing cash and cash equivalents and available-for-sale marketable securities balances will be sufficient to fund its operating plan and capital expenditure requirements for at least the next 12 months from the date of this Quarterly Report on Form 10-Q.