On September 5, 2022 Avacta Group plc (AIM: AVCT), a clinical stage oncology drug company and developer of powerful diagnostics based on its innovative Affimer and pre|CISION platforms, reported that the US Food and Drug Administration (FDA) has granted Orphan Drug Designation (ODD) to the company’s lead pre|CISION drug candidate, AVA6000, for treatment of soft tissue sarcoma (Press release, Avacta, SEP 5, 2022, View Source [SID1234618997]).
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AVA6000 is a form of the generic chemotherapy doxorubicin that has been modified using the pre|CISION technology so that it is activated predominantly in the tumour with the aim of sparing healthy tissue from exposure and improving the safety, tolerability and efficacy of the drug. Doxorubicin has a market size that is expected to grow to $1.38bn by 2024, and is widely used as part of the standard of care in several cancer types. Avacta has an ongoing Phase 1 clinical trial to assess the safety and pharmacokinetics of AVA6000 which has potential as a treatment for patients with a range of cancer types, including soft tissue sarcoma.
The FDA can grant ODD based on a review of preclinical data from investigational treatments for rare diseases, such as soft tissue sarcoma, which are defined as conditions affecting fewer than 200,000 people in the US. This designation qualifies the developer of the drug for certain incentives, including, seven years of market exclusivity upon drug approval from the FDA.
Soft-tissue sarcoma is a rare mesenchymal malignancy which accounts for less than 1% of all adult tumours. Despite the successful advancement of localised therapies, such as surgery and radiotherapy, these tumours can recur, often with metastatic disease. The American Cancer Society estimates that, in 2022 approximately 13,190 new soft tissue sarcomas will be diagnosed, and about 5,130 people are expected to die of the disease in the US.
Dr Alastair Smith, Chief Executive Officer of Avacta, commented: "We are delighted to receive Orphan Drug Designation from the FDA for AVA6000, which is a reflection of the high quality of the preclinical data and the potential benefit the pre|CISION platform can bring to cancer patients."
"This designation provides tax credits and other incentives for drug developers addressing rare diseases. Most notably the Orphan Drug Designation will give Avacta, if AVA6000 is approved for treatment of soft tissue sarcoma, seven years of market exclusivity in the US, which is a significant commercial advantage."