Aptevo Therapeutics Announces Monotherapy Patient Received a Transplant in APVO436 Expansion Trial for the Treatment of Acute Myeloid Leukemia
Patients in Both Monotherapy and Combination Arms in Multi-Cohort Trial Have Achieved Transplant Eligible Status
"We are very pleased to report that a refractory secondary AML patient, after receiving APVO436 as monotherapy, experienced a significant reduction in bone marrow blasts, tolerated the treatment well, experienced clinical benefit and was therefore able to proceed to allogeneic transplant. Prior to trial entry, this patient had refractory disease after receiving multiple other lines of therapy and had a very poor prognosis. There were few therapeutic options left with which to fight the disease," said
APVO436 is currently being evaluated in a Phase 1b expansion trial for adult patients with AML in a multi-center, multi-cohort study of up to 90 patients who will receive either APVO436 in combination with standard of care chemotherapies or as monotherapy. In 2021, the Company announced results from its Phase 1b dose escalation trial in patients with both AML and myelodysplastic syndrome or MDS. Results showed that APVO436 exhibited a favorable safety profile with acceptable tolerability and generally manageable drug-related adverse events. Promising clinical activity was also observed in 11 of 40 patients (27.5%) in the dose escalation part of the study and reported at the
"We are excited that a patient receiving monotherapy proceeded to transplant in the expansion trial, further demonstrating APVO436 clinical activity in AML and in support of our findings from the dose escalation part of the trial reported last year, said
About APVO436
Overexpression of CD123 is the hallmark of many forms of leukemia. Aptevo's lead proprietary drug candidate, APVO436 is a bispecific CD3xCD123 ADAPTIR that is designed to redirect the immune system of the patient to destroy leukemia cells expressing the target CD123 molecule on their surface. This antibody-like recombinant protein therapeutic is designed to engage both leukemia cells and T-cells of the immune system and bring them closely together to trigger the destruction of leukemia cells. APVO436 has been engineered using Aptevo's proprietary and enabling bioengineering methods and is designed to reduce the likelihood and severity of cytokine release syndrome (CRS). APVO436 has received orphan drug designation ("orphan status") for AML according to the Orphan Drug Act.
About
Safe Harbor Statement
This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, including, without limitation, Aptevo's expectations about the activity, efficacy and safety of its therapeutic candidates and potential use of any such candidates as therapeutics for treatment of disease, its expectations regarding the effectiveness of its ADAPTIR and ADAPTIR-FLEX platforms, whether APVO436 treatments can improve the quality of remission in high-risk AML or MDS patients, whether APVO436 helps AML patients achieve complete remissions without transplant, whether Aptevo's strategy will translate into an improved overall survival in AML, statements relating to Aptevo's clinical programs, and any other statements containing the words "may," "believes," "expects," "anticipates," "hopes," "intends," "optimism," "potential," "designed," "engineered," "breakthrough," "innovative," "innovation," "promising," "plans," "forecasts," "estimates," "will" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based on Aptevo's current intentions, beliefs, and expectations regarding future events. Aptevo cannot guarantee that any forward-looking statement will be accurate. Investors should realize that if underlying assumptions prove inaccurate or unknown risks or uncertainties materialize, actual results could differ materially from Aptevo's expectations. Investors are, therefore, cautioned not to place undue reliance on any forward-looking statement.
There are several important factors that could cause Aptevo's actual results to differ materially from those indicated by such forward-looking statements, including a deterioration in Aptevo's business or prospects; adverse developments in the
CONTACT:
Email: IR@apvo.com or Millerm@apvo.com
Phone: 206-859-6628
SOURCE:
accesswire.com
https://www.accesswire.com/695036/Aptevo-Therapeutics-Announces-Monotherapy-Patient-Received-a-Transplant-in-APVO436-Expansion-Trial-for-the-Treatment-of-Acute-Myeloid-Leukemia