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Investigator-initiated study data presented May 30, 2026, at the American Society of Clinical Oncology (ASCO) Annual Meeting demonstrated durable responses and manageable tolerability in heavily pre-treated patients 20.5 months of median progression-free survival observed among 48% of efficacy-evaluable patients achieving clinical benefit (10 of 21) Responses were observed in patients previously treated with immune checkpoint inhibitors, including a 33% objective response rate in patients with relapsed or refractory endometrial cancer CRANFORD, N.J., June 1, 2026 /PRNewswire/ -- Citius Oncology, Inc. ("Citius Oncology") (Nasdaq: CTOR), an oncology‑focused biopharmaceutical company and majority‑owned subsidiary of Citius Pharmaceuticals, Inc. ("Citius Pharma") (Nasdaq: CTXR), today highlighted Phase 1 clinical data presented May 30, 2026, at the American Society of Clinical Oncology (ASCO) Annual Meeting evaluating LYMPHIR (denileukin diftitox-cxdl) in combination with pembrolizumab in patients with recurrent or refractory gynecologic malignancies.

24% Objective Response Rate, with an average of 21.1 month Duration of Response in responders, and favorable safety profile signals potential of LYMPHIR to augment immune checkpoint inhibitor efficacy Investigator-initiated study of LYMPHIR in combination with pembrolizumab to be presented during immunotherapy session, highlighting potential role of LYMPHIR beyond CTCL CRANFORD, N.J., May 26, 2026 /PRNewswire/ -- Citius Oncology, Inc. ("Citius Oncology") (Nasdaq: CTOR), an oncology‑focused biopharmaceutical company and majority‑owned subsidiary of Citius Pharmaceuticals, Inc. ("Citius Pharma") (Nasdaq: CTXR), today announced that University of Pittsburgh Medical Center's investigator-initiated trial evaluating LYMPHIR (denileukin diftitox-cxdl) in combination with the PD-1 immune checkpoint inhibitor pembrolizumab (KEYTRUDA®) has been selected for poster presentation at the American Society of Clinical Oncology Annual Meeting (ASCO), taking place May 29 – June 2, 2026, in Chicago, Illinois.

$5.6 Million in net revenue for the first half of fiscal 2026 from ongoing launch of LYMPHIR ® Citius Pharma raised $5 million in a registered direct offering; Citius Oncology secured up to $36.5 million in debt and equity financing Advanced patient access with payer coverage near 100% of commercial lives and 83% of LYMPHIR target accounts on formulary or in review CRANFORD, N.J., May 15, 2026 /PRNewswire/ -- Citius Pharmaceuticals, Inc. ("Citius Pharma" or the "Company") (Nasdaq: CTXR), a biopharmaceutical company dedicated to the development and commercialization of first-in-class critical care products, today reported business and financial results for the fiscal second quarter ended March 31, 2026, and provided a business update, including progress at its majority-owned subsidiary, Citius Oncology, Inc. (Nasdaq: CTOR).

$5.6 million in net revenue for the first half of fiscal 2026 as LYMPHIR ® launch progresses Up to $36.5 million in debt and equity capital secured Broad payer coverage established with no reimbursement denials 83% of target accounts on formulary or in review CRANFORD, N.J., May 15, 2026 /PRNewswire/ -- Citius Oncology, Inc. ("Citius Oncology" or the "Company") (Nasdaq: CTOR), the oncology-focused subsidiary of Citius Pharmaceuticals, Inc. ("Citius Pharma") (Nasdaq: CTXR), today reported financial results for the fiscal second quarter ended March 31, 2026, and provided a business update.

Order fulfilment expands international patient access to LYMPHIR following initial U.S. launch Distribution by regional partners through Named Patient Programs in specific international markets CRANFORD, N.J., April 29, 2026 /PRNewswire/ -- Citius Oncology, Inc. ("Citius Oncology") (Nasdaq: CTOR), an oncology‑focused biopharmaceutical company and majority‑owned subsidiary of Citius Pharmaceuticals, Inc. ("Citius Pharma") (Nasdaq: CTXR), today announced the initial shipment of LYMPHIR™ (denileukin diftitox-cxdl) to Europe through one of its regional distribution partners, marking an important milestone in expanding access to the therapy for patients outside the United States.