OncoZenge AB (publ), a pharmaceutical company developing innovative treatments for oral pain management, today announced that the one-month stability study results for its BupiZengeTM lozenge technology batch are within specifications. The batch was successfully manufactured at Meribel Pharma Solutions in Solna, Sweden, in December 2025 following a technology transfer conducted in collaboration with Molteni Farmaceutici.

OncoZenge AB (publ), a pharmaceutical company developing innovative treatments for oral pain management, today announced that the one-month stability study results for its BupiZenge™ lozenge technology batch are within specifications. The batch was successfully manufactured at Meribel Pharma Solutions in Solna, Sweden, in December 2025 following a technology transfer conducted in collaboration with Molteni Farmaceutici.

This milestone confirms the manufacturing process for BupiZenge™, OncoZenge's lead product candidate designed to provide targeted, long-lasting relief for patients suffering from oral mucositis and other severe oral pain conditions.

These positive initial stability data supports the ongoing development program and paves the way for further clinical advancement. Meribel Pharma Solutions is currently manufacturing the full GMP batch for BupiZenge™, marking a key step for the upcoming Phase III trial targeting 1st patient in Q2 2026.

"We are thrilled with these expected but confirmatory results, which demonstrate a high quality and reliability of our production process," said Tuulikki Lindmark, Head of CMC at OncoZenge AB. "This achievement is a testament to the excellent teamwork and dedication from our partners at Meribel Pharma Solutions and Molteni Farmaceutici. Their expertise has been instrumental in driving this progress, and we look forward to continued collaboration as we move closer to bringing BupiZenge™ to patients in need."

BupiZenge™ - Potential to be the leading treatment for oral pain.

ContactsStian Kildal CEO Mobile: +46 76 115 3797 E-mail: stian.kildal@oncozenge.se

AboutOncoZenge AB (publ) is a clinical-stage pharmaceutical company developing an innovative, effective, and well-tolerated treatment for oral pain in conditions where current options are insufficient, such as oral mucositis from cancer therapy. Its lead candidate, BupiZenge™, represents a novel formulation of bupivacaine in a lozenge form, aimed at providing rapid and sustained local pain relief without the risks associated with systemic opioids. OncoZenge is headquartered in Stockholm, Sweden, and is publicly traded on Nasdaq First North Growth Market under the ticker ONCOZ. For more information, please visit www.oncozenge.se.

OncoZenge ABGustavslundsvägen 34, 167 51 Stockholm, Sweden

Certified AdviserOncoZenge's Certified Adviser is Redeye AB.

AttachmentsOncoZenge AB Reports Positive Initial Stability Results for the BupiZenge™ Technology Batch, Advancing Toward Clinical Trials