Aravive Announces First Patient Dosed in Phase 1b/2 Clinical Trial of AVB-500 for the Treatment of Pancreatic Adenocarcinoma

On August 9, 2021 Aravive Inc. (Nasdaq: ARAV), a clinical-stage oncology company developing innovative therapeutics to treat life-threatening diseases, reported the Company has dosed the first patient in the Phase 1b portion of its Phase 1b/2 trial of AVB-500 in combination with gemcitabine and nab-paclitaxel as a first-line treatment in patients with advanced or metastatic pancreatic adenocarcinoma (Press release, Aravive, AUG 9, 2021, View Source [SID1234594062]). The Phase 1b portion of the clinical trial will evaluate safety, tolerability, pharmacokinetics, pharmacodynamics, and clinical activity of AVB-500 in combination with gemcitabine and nab-paclitaxel.

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"We are pleased with the quick advancement of AVB-500 with the first patient dosed in our Phase 1b/2 pancreatic adenocarcinoma trial. This clinical trial addresses a very high unmet medical need in one of the most difficult-to-treat cancers with a high mortality rate," said Gail McIntyre, Ph.D., DABT, Chief Executive Officer of Aravive. "We continue to expand the development of AVB-500, as the Company now has three ongoing clinical trials of AVB-500. In addition to the pancreatic adenocarcinoma clinical trial, AVB-500 is currently being investigated in a Phase 3 clinical trial for platinum resistant ovarian cancer and a Phase 1b/2 clinical trial for clear cell renal cell carcinoma."

The Phase 1b/2 clinical trial is designed to evaluate AVB-500 as a first-line therapy in combination with gemcitabine and nab-paclitaxel (Abraxane) in patients with advanced or metastatic pancreatic adenocarcinoma eligible to receive gemcitabine and nab-paclitaxel combination therapy. The Phase 1b portion of the clinical trial will evaluate safety, tolerability, pharmacokinetics, pharmacodynamics, and clinical activity in approximately 20 patients dosed with 15 mg/kg of AVB-500 in combination with gemcitabine and nab-paclitaxel. The randomized, controlled Phase 2 portion of the clinical trial is designed to evaluate approximately 60 patients dosed with 15 mg/kg of AVB-500 as a first-line therapy in combination with gemcitabine and nab-paclitaxel versus gemcitabine and nab-paclitaxel alone. The primary endpoint of the Phase 2 portion of the trial is progression-free survival. The secondary endpoints are objective response rate, duration of response, clinical benefit rate, safety and overall survival, and the exploratory endpoints are pharmacokinetics and pharmacodynamics. The Phase 1b/2 trial is listed on clinicaltrials.gov NCT04983407.

About Pancreatic Cancer
Pancreatic cancer is the seventh leading cause of cancer death worldwide. There were approximately 495,800 new cases of pancreatic cancer and 466,000 deaths from the disease worldwide in 2020. It is estimated that there will be approximately 60,400 new cases of pancreatic cancer and 48,200 deaths from the disease in the U.S. in 2021. Pancreatic cancer typically has a poor prognosis, and the five-year survival rate is approximately 11%. Pancreatic adenocarcinoma is the most common type of pancreatic cancer, and there is a clear, high, unmet medical need to improve patient survival with new effective treatments that are safe and well-tolerated. Pancreatic cancer is projected to become the third leading cause of cancer death worldwide by 2025 and the second leading cause of cancer death in the U.S. by 2030.

About AVB-500
AVB-500 is a therapeutic recombinant fusion protein that has been shown to neutralize GAS6 activity by binding to GAS6 with very high affinity in preclinical models. In doing so, AVB-500 selectively inhibits the GAS6-AXL signaling pathway, which is upregulated in multiple cancer types including ovarian, renal and pancreatic cancer. In preclinical studies, GAS6-AXL inhibition has shown anti-tumor activity in combination with a variety of anticancer therapies, including radiation therapy, immuno-oncology agents, and chemotherapeutic drugs that affect DNA replication and repair. Increased expression of AXL and GAS6 in tumors has been correlated with poor prognosis and decreased survival and has been implicated in therapeutic resistance to conventional chemotherapeutics and targeted therapies. AVB-500 is currently being evaluated in multiple clinical trials and has been granted Fast Track Designation by the U.S. Food and Drug Administration in platinum resistant recurrent ovarian cancer. Analysis of all safety data to date showed that AVB-500 has been generally well tolerated with no dose-limiting toxicities or unexpected safety signals.