On August 12, 2025 Nkarta, Inc. (Nasdaq: NKTX), a clinical-stage biopharmaceutical company developing engineered natural killer (NK) cell therapies, reported financial results for the second quarter and year ended June 30, 2025 (Press release, Nkarta, AUG 12, 2025, View Source [SID1234655159]).
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"We remain focused on the execution of our clinical trials and continue to believe in the differentiated potential of NK cell therapy to address unmet needs in the treatment of autoimmune diseases," said Paul J. Hastings, CEO of Nkarta. "Welcoming Dr. Rose and other key new members of our clinical team with rheumatology experience has provided us with world-class medical expertise to inform our ongoing enrollment of patients across our clinical studies and investigator-sponsored trials. Dr. Rose’s track record as a seasoned rheumatologist, immunologist and accomplished drug developer in the autoimmune space will be invaluable as we continue to advance our NKX019 clinical trial programs."
NKX019 Clinical Program Progress and Upcoming Milestones
NKX019 clinical programs in autoimmune diseases continue to enroll patients. This includes Ntrust-1, Ntrust-2 and two investigator-sponsored trials.
Preliminary data from the Ntrust-1 and Ntrust-2 clinical trials is planned for release in the second half of 2025.
Other Corporate Updates
Shawn Rose, M.D. Ph.D, was appointed Chief Medical Officer and Head of Research and Development in June 2025. In previous roles with Johnson & Johnson, BMS and emerging biopharma companies, Dr. Rose brought forward more than a dozen programs from discovery into clinical development, and he has developed multiple pioneering approved medicines for autoimmune conditions.
Second Quarter 2025 and Recent Financial Highlights
Nkarta had cash, cash equivalents, restricted cash, and investments in marketable securities of $334.0 million as of June 30, 2025.
Research and development (R&D) expenses were $20.8 million for the second quarter of 2025. Non-cash stock-based compensation expense included in R&D expense was $0.9 million for the second quarter of 2025.
General and administrative (G&A) expenses were $6.4 million for the second quarter of 2025. Non-cash stock-based compensation expense included in G&A expense was $1.2 million for the second quarter of 2025.
Net loss was $23.0 million, or $0.31 per basic and diluted share, for the second quarter of 2025. This net loss includes non-cash charges of $3.4 million that consisted primarily of share-based compensation and depreciation expenses.
Financial Guidance
Nkarta expects its current cash and cash equivalents will be sufficient to fund its current operating plan into 2029.
About the Ntrust℠ Clinical Trials in Autoimmune Disease
Ntrust-1 (NCT06557265) and Ntrust-2 (NCT06733935) are multi-center, open label, dose escalation clinical trials that build on academic studies of durable, drug-free remissions in patients with autoimmune disease after CD19-targeted cell therapy. Both trials will assess the safety of NKX019 in people living with autoimmune diseases as well as its ability to enable long-term remissions via a "reset" of the immune system through the elimination of pathogenic B cells.
Ntrust-1 is initially enrolling up to 24 patients with lupus nephritis or primary membranous nephropathy. Ntrust-2 is initially enrolling up to 36 patients with systemic sclerosis, idiopathic inflammatory myopathy, or ANCA-associated vasculitis.
In both studies, patients receive a three-dose cycle of NKX019 on Days 0, 3, and 7 following lymphodepleting conditioning with either fludarabine and cyclophosphamide or cyclophosphamide alone. Leveraging the engineering of NKX019, no patients in either trial will receive supplemental cytokines or antibody-based therapeutics. This approach is designed to evaluate the single-agent activity of NKX019 and facilitate a more rapid path to regulatory approval. Patients in Ntrust-1 may also receive additional cycles, if necessary, to restore response.
About the Investigator-Sponsored Clinical Trial of NKX019 for Generalized Myasthenia Gravis
The single-arm, open-label Phase 1 investigator-sponsored clinical trial is designed to enroll patients with generalized myasthenia gravis and will evaluate safety and clinical outcomes. Translational and biomarker studies, including autoantibodies, cytokine profiles and pharmacokinetics are planned. Patients receive 3 doses of NKX019 following lymphodepletion. The clinical trial is being co-led by Ali A. Habib, M.D., Clinical Professor of Neurology at the University of California, Irvine, and other investigators.
About the Investigator-Sponsored Clinical Trial of NKX019 for Systemic Lupus Erythematosus
The single-center, single-arm, open-label Phase 1 investigator-sponsored clinical trial (NCT06518668) is designed to enroll up to 6 patients with systemic lupus erythematosus, regardless of renal involvement, and will evaluate safety and clinical outcomes in a potentially different population than Ntrust-1. Translational and biomarker studies, including autoantibodies, cytokine profiles and pharmacokinetics are planned. Patients receive 3 doses of NKX019 following lymphodepletion. The clinical trial is being led by Anca D. Askanase, M.D., M.P.H., Director, Lupus Center at Columbia University Irving Medical Center and the Director of Rheumatology Clinical Trials.
About NKX019
NKX019 is an allogeneic, cryopreserved, off-the-shelf immunotherapy candidate that uses natural killer (NK) cells derived from the peripheral blood of healthy adult donors. It is engineered with a humanized CD19-directed chimeric antigen receptor (CAR) for enhanced cell targeting and a proprietary, membrane-bound form of interleukin-15 (IL-15) for greater persistence and activity without exogenous cytokine support. CD19 is a biomarker for normal B cells as well as those implicated in autoimmune disease. Nkarta is evaluating NKX019 in multiple autoimmune conditions.