Subsequent Events	12 Months Ended
Sep. 30, 2023
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	12. SUBSEQUENT EVENTS *Merger Agreement* - On October 23, 2023, Citius Pharma and Citius Oncology entered into an agreement and plan of merger and reorganization (the “Merger Agreement”) with TenX Keane Acquisition, a Cayman Islands exempted company (“TenX”), and TenX Merger Sub Inc., a Delaware corporation, and a wholly owned subsidiary of TenX (“Merger Sub”). The Merger Agreement provides, among other things, (i) on the terms and subject to the conditions set forth therein, that Merger Sub will merge with and into Citius Oncology, with Citius Oncology surviving as a wholly owned subsidiary of TenX (the “Merger”), and (ii) that prior to the effective time of the Merger (the “Effective Time”), TenX will migrate to and domesticate as a Delaware corporation in accordance with Section 388 of the General Corporation Law of the State of Delaware and the Cayman Islands Companies Act (As Revised) (the “Domestication”). The newly combined publicly traded company is to be named “Citius Oncology, Inc.” (the “Combined Company”). The Domestication, Merger and the other transactions contemplated by the Merger Agreement are referred to as the “Business Combination.” In the Merger, all shares of Citius Oncology would be converted into the right to receive common stock of the Combined Company. As a result, upon closing, Citius Pharma would receive 67.5 million shares of common stock of the Combined Company. As part of the transaction, Citius Pharma will contribute $10 million in cash to the Combined Company. The 12.6 million existing Citius Oncology common stock options will be assumed by the Combined Company. Citius Pharma and the Combined Company will also enter into an amended and restated shared services agreement, which, among other things, will govern certain management and scientific services that Citius Pharma will continue to provide to the Combined Company following the Effective Time. The Merger Agreement, Business Combination and the transactions contemplated thereby were unanimously approved by the boards of directors of each of Citius Pharma, Citius Oncology and TenX. The transaction is expected to be completed in the first half of 2024, subject to approval by stockholders of TenX and other customary closing conditions, including final regulatory approvals and SEC filings. There can be no assurance regarding the ultimate timing of the proposed transaction or that the transaction will be completed at all. On December 11, 2023, the Company terminated the Mino-Wrap license agreement with the Board of Regents of the University of Texas System on behalf of MDACC. In late December 2023, the Company determined that patient enrollment for the Mino-Lok trial was complete and that it would begin site shutdown activities.

Subsequent Events

12 Months Ended

Sep. 30, 2023

12. SUBSEQUENT EVENTS

Merger Agreement - On October 23, 2023, Citius Pharma and Citius Oncology entered into an agreement and plan of merger and reorganization (the “Merger Agreement”) with TenX Keane Acquisition, a Cayman Islands exempted company (“TenX”), and TenX Merger Sub Inc., a Delaware corporation, and a wholly owned subsidiary of TenX (“Merger Sub”). The Merger Agreement provides, among other things, (i) on the terms and subject to the conditions set forth therein, that Merger Sub will merge with and into Citius Oncology, with Citius Oncology surviving as a wholly owned subsidiary of TenX (the “Merger”), and (ii) that prior to the effective time of the Merger (the “Effective Time”), TenX will migrate to and domesticate as a Delaware corporation in accordance with Section 388 of the General Corporation Law of the State of Delaware and the Cayman Islands Companies Act (As Revised) (the “Domestication”). The newly combined publicly traded company is to be named “Citius Oncology, Inc.” (the “Combined Company”). The Domestication, Merger and the other transactions contemplated by the Merger Agreement are referred to as the “Business Combination.”

In the Merger, all shares of Citius Oncology would be converted into the right to receive common stock of the Combined Company. As a result, upon closing, Citius Pharma would receive 67.5 million shares of common stock of the Combined Company. As part of the transaction, Citius Pharma will contribute $10 million in cash to the Combined Company. The 12.6 million existing Citius Oncology common stock options will be assumed by the Combined Company. Citius Pharma and the Combined Company will also enter into an amended and restated shared services agreement, which, among other things, will govern certain management and scientific services that Citius Pharma will continue to provide to the Combined Company following the Effective Time.

The Merger Agreement, Business Combination and the transactions contemplated thereby were unanimously approved by the boards of directors of each of Citius Pharma, Citius Oncology and TenX. The transaction is expected to be completed in the first half of 2024, subject to approval by stockholders of TenX and other customary closing conditions, including final regulatory approvals and SEC filings. There can be no assurance regarding the ultimate timing of the proposed transaction or that the transaction will be completed at all.

On December 11, 2023, the Company terminated the Mino-Wrap license agreement with the Board of Regents of the University of Texas System on behalf of MDACC.

In late December 2023, the Company determined that patient enrollment for the Mino-Lok trial was complete and that it would begin site shutdown activities.