La Chaux-de-Fonds, Switzerland, April 09, 2018 -- Rhizen Pharmaceuticals S.A., today announced that the U.S. Food and Drug Administration (FDA) has granted orphan-drug designation for the active moiety of Tenalisib (RP6530), the Company’s highly selective and orally active dual PI3K delta/gamma inhibitor, for treatment of cutaneous T-cell lymphoma (CTCL).
“We are pleased to receive US FDA orphan-drug designations for the active moiety of Tenalisib (RP6530) for the treatment of peripheral and cutaneous T-cell Lymphoma (PTCL and CTCL), and we look forward to advancing the drug into further development for treatment of T-cell lymphoma,” said Swaroop Vakkalanka, Ph.D., Founder & President of Rhizen Pharmaceuticals S.A.
About FDA Orphan-Drug Designation:
Orphan-Drug Designation is granted to a drug or biological product intended to treat a rare disease in the United States. A number of incentives are provided for an orphan-drug such as 7-year marketing exclusivity, tax credits for clinical development costs, exemption/waiver of application (filing) fees and assistance from the FDA Office of Orphan Products Development (OOPD) during the development process.
About Tenalisib (RP6530):
Tenalisib (RP6530) is a highly selective and orally active dual PI3K delta/gamma inhibitor with efficient translation of activity through enzyme, cell, and whole blood-based studies. Besides inhibiting growth of immortalized cancerous cell lines and primary patient leukemic/lymphoma cells, RP6530 plays a significant role in modulation of tumor microenvironment at clinically achievable concentrations. In preclinical studies, RP6530 reprograms macrophages from an immunosuppressive M2-like phenotype (pro-tumor) to an inflammatory M1-like state (anti-tumor), which can potentially enhance the activity of checkpoint inhibitors or overcome resistance to these drugs. Tenalisib obtained US FDA Fast Track Designation for treatment of peripheral T-cell lymphoma (PTCL) in addition to Orphan-Drug Designations for treatment of peripheral and cutaneous T-cell lymphoma (PTCL and CTCL).
About Rhizen Pharmaceuticals S.A.:
Rhizen Pharmaceuticals is an innovative, clinical-stage biopharmaceutical company focused on the discovery and development of novel therapeutics for the treatment of cancer, immune and metabolic disorders. Since its establishment in 2008, Rhizen has created a diverse pipeline of proprietary drug candidates targeting several cancers and immune associated cellular pathways. Rhizen is headquartered in La-Chaux-de-Fonds, Switzerland. For additional information, please visit Rhizen’s website, www.rhizen.com.
Contact: Kumar V. Penmetsa, Ph.D. Executive Vice President, Corporate Development Rhizen Pharmaceuticals S.A. Telephone: +1-267-207-5707 Email: [email protected]


Lyft Shares Slide After Weak Q1 Profit Forecast and Surprise 2025 Operating Loss
ByteDance Advances AI Chip Development With Samsung Manufacturing Talks
Amazon Explores AI Content Marketplace With Media Publishers
CBA Shares Surge After Record Half-Year Profit as Rate Outlook Improves
Air New Zealand Cabin Crew Strike Set for February 12–13 Amid Failed Talks
Standard Chartered Names Peter Burrill as Interim Group CFO Following Diego De Giorgi’s Exit
FAA Confirms $1.5 Billion Peraton Contract as U.S. Air Traffic Control Overhaul Accelerates
Petrobras Posts Record Oil Exports as Production Surge Fuels Global Expansion
American Airlines CEO to Meet Pilots Union Amid Storm Response and Financial Concerns
Samsung Electronics Shares Jump on HBM4 Mass Production Report
Salesforce Workforce Reduction Affects Fewer Than 1,000 Roles Amid Ongoing Restructuring
Alphabet Plans Rare 100-Year Sterling Bond to Fund AI Expansion
DBS Expects Slight Dip in 2026 Net Profit After Q4 Earnings Miss on Lower Interest Margins
Taiwan Says Moving 40% of Semiconductor Production to the U.S. Is Impossible
Macquarie Group Shares Jump as Third-Quarter Trading Conditions Improve Across Key Units
Russia Signals Further Restrictions on Telegram Amid Ongoing Regulatory Disputes
Cloudflare Forecasts Strong Revenue Growth as AI Fuels Cloud Services Demand 



