Medicenna Therapeutics Reports First Quarter Fiscal 2027 Financial Results and Announces Oral Presentations at Upcoming Conferences

On August 14, 2026 Medicenna Therapeutics Corp. ("Medicenna" or the "Company") (TSX: MDNA, OTCQX: MDNAF), a clinical-stage immunotherapy company focused on the development of Superkines targeting cancer, autoimmune, and inflammatory diseases, reported financial results for the three months ended June 30, 2026 and provided a corporate update.

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"We are delighted to have the opportunity to present new clinical data at oral sessions at two major upcoming medical conferences for our most advanced pipeline candidates, MDNA11 and bizaxofusp," said Fahar Merchant, Ph.D., President and CEO of Medicenna. "During the first quarter, we continued to execute against the milestones we outlined earlier this year, and our key programs remain on track. Completion of enrolment in ABILITY-1 is expected this quarter, with updated MDNA11 clinical results to be provided during an oral presentation at an upcoming conference and to explore with regulators on a potential expedited registrational development path. We also look forward to presenting new clinical data on bizaxofusp in an oral session at an upcoming conference. While NEO-CYT continues to enrol at multiple centres in Italy, we continue to advance MDNA113 to support an IND submission with plans to commence a first-in-human study in 2027. We look forward to a data-rich period during the remainder of this year."

Program highlights for the three months ended June 30, 2026, along with recent developments, include:

MDNA11: IL-2 Superkine Program

Previously reported results from the Phase 1/2 ABILITY-1 study showed deep and durable anti-tumor activity in difficult-to-treat solid tumors, including response rates in the 30-40% range in second- and third-line settings or as the next line of therapy following resistance to checkpoint inhibitors
Enrolment in the monotherapy and combination expansion cohorts of ABILITY-1 remains on track for completion in Q3 2026
Medicenna plans to present updated MDNA11 clinical results in an oral presentation at an upcoming medical conference and to engage the FDA in an end-of-Phase 1 meeting to explore with regulators the potential for expedited registrational development path
The randomized Phase 1b NEO-CYT study continues to enrol patients with melanoma and is evaluating MDNA11 prior to surgery with preliminary clinical data expected in Q4 2026
MDNA113: First-in-Class Anti-PD-1-IL-2 Bifunctional Superkine

Anti-PD-1-IL-2 bispecifics have emerged as a promising class of immuno-oncology therapies due to cis-binding synergies
At the 2026 AACR (Free AACR Whitepaper) Annual Meeting, the Company presented preclinical data highlighting the differentiated potential of MDNA113, its IL-13Rα2-targeted anti-PD-1-IL-2 bifunctional Superkine designed for tumor targeting and activation within the tumor microenvironment
The AACR (Free AACR Whitepaper) presentation showed that MDNA113 could be administered at dose levels consistent with or exceeding standard-of-care commercial anti-PD-1 therapies, including doses up to 50 mg/kg in non-human primates
The data also demonstrated differentiated safety and dosing capabilities compared with a competing anti-PD-1-IL-2α-biased design
Planning is underway for an IND submission and commencing a Phase 1 clinical trial in 2027
Bizaxofusp (formerly MDNA55): Empowered IL-4 Superkine Program

The Company continues to pursue partnership opportunities for bizaxofusp, its Phase 3-ready IL-4 Empowered Superkine for recurrent glioblastoma (rGBM). Bizaxofusp has been evaluated in 118 patients with high-grade gliomas, including 112 patients with rGBM, and has received Fast Track designation from the FDA and Orphan Drug designations from the FDA and EMA.

Updated bizaxofusp data will be presented in an oral presentation at an upcoming medical conference
Quarterly Financial Results

Medicenna ended the first quarter ended June 30, 2026 with cash and cash equivalents of $5.7 million, compared with $6.3 million as at March 31, 2026. During the quarter, the Company received $4.4 million in gross proceeds from the previously announced public offering. Subsequent to the quarter end, the Company also received $1.3 million from the Australian R&D incentive program. As previously disclosed, the Company has also entered into a term sheet in respect of a structured financing arrangement with Sorbie Bornholm LP and Sorbie Investments LLP ("Sorbie") pursuant to which the Company may ultimately receive more or less than $8.0 million (the "Sorbie Transaction"), subject to certain terms and conditions. The completion of the Sorbie Transaction and the execution of the required documentation are each subject to the satisfaction of customary closing conditions, including the receipt of all necessary regulatory and stock exchange approvals. The proceeds from these financings, together with cash on hand, are expected, if completed as contemplated, to provide the Company with sufficient capital to execute its current planned expenditures into the second quarter of the 2027 calendar year.

For the three months ended June 30, 2026, the Company reported total operating costs of $5.4 million, compared with total operating costs of $5.5 million for the three months ended June 30, 2025. The relatively stable operating costs reflect similar levels of operating activity during the two periods.

Net loss for the three months ended June 30, 2026, was $5.1 million ($0.06 loss per share), compared to a net loss of $4.9 million ($0.06 loss per share) for the three months ended June 30, 2025. The slight increase in net loss during the current period relative to the three months ended June 30, 2025 was primarily due to $0.2 million decrease in finance income and a $0.8 million reduction in the fair value gain recognized on the derivative warrant liability, partially offset by a $0.8 million decrease in foreign exchange losses.

Research and development expenses of $4.3 million were incurred during the three months ended June 30, 2026, compared with $4.2 million incurred during the three months ended June 30, 2025. The relatively stable R&D expenses reflect similar levels of operating activity during the two periods.

General and administrative expenses of $1.2 million were incurred during the three months ended June 30, 2026, compared with $1.3 million during the three months ended June 30, 2025. The slight decrease in G&A expense over the comparable quarter is primarily attributable to a decrease in public company expenses due to a reduced level of legal expenses in the current period relative to the comparable quarter.

Medicenna’s financial statements for the three months ended June 30, 2026 and the related management’s discussion and analysis (MD&A) will be made available under Medicenna’s issuer profile on SEDAR+ at www.sedarplus.ca.

(Press release, Medicenna Therapeutics, AUG 14, 2026, View Source [SID1234670149])