Press releases

Stockholm — June 30, 2021 — Oncopeptides AB (Nasdaq Stockholm, ONCO) today announces that the number of shares and votes in Oncopeptides has changed due to the exercise of warrants under the company’s incentive program

Stockholm, Sweden – The Annual General Meeting in Oncopeptides AB (publ) (ONCO) was held on Wednesday, 26 May 2021. At the Annual General Meeting, the following principal resolutions were passed

A strong start for PEPAXTO in the US

· According to the Independent Review Committee Assessment, melflufen was non-inferior to pomalidomide on the primary endpoint of Progression Free Survival (PFS) with a Hazard Ratio favoring melflufen of 0.817 and the median PFS for melflufen was 41% higher than for pomalidomide · According to the Investigator Assessment, melflufen was superior to pomalidomide on PFS with a Hazard ratio favoring melflufen of 0.790 and median PFS for melflufen was 42% higher than for pomalidomide · The Overall Response Rate (ORR) was 32.1% for melflufen, compared to 26.5% for pomalidomide · Melflufen and pomalidomide had similar discontinuation rates for adverse events, and the safety profile of melflufen was in line with previous studies

STOCKHOLM — May 20, 2021 — Oncopeptides AB (publ) (Nasdaq Stockholm: ONCO), a global biotech company focused on the development of therapies for difficult-to-treat hematological diseases, will publish its report for the first quarter 2021 on May 26. Investors, financial analysts and media are invited to participate in a webcast with a QnA session on the same day at 12:00 CEST. The event will be hosted by CEO, Marty J Duvall and members of the Oncopeptides’ Leadership team. The presentation will be held in English

STOCKHOLM — May 19, 2021 — Oncopeptides AB (publ) (Nasdaq Stockholm: ONCO), a global biotech company focused on the development of therapies for difficult-to-treat hematological diseases, today announces that three abstracts with data on melflufen (INN melphalan flufenamide) in relapsed refractory multiple myeloma, RRMM, have been accepted by the 2021 American Society of Clinical Oncology, ASCO, and have now been published online. The clinical data presentations include updates on Oncopeptides’ ANCHOR and LIGHTHOUSE studies as well as a pooled analysis of the O-12-M1 and HORIZON studies in patients who have been exposed to or become refractory to prior alkylators

STOCKHOLM — May 12, 2021 — Oncopeptides AB (publ) (Nasdaq Stockholm: ONCO), a global biotech company focused on the development of therapies for difficult-to-treat hematological diseases, today announces that new clinical and preclinical data have been accepted by the European Hematology Association, EHA, and been published online. The clinical data presentation contains interim results from the phase 2 BRIDGE study supporting the use of melflufen in relapsed refractory multiple myeloma patients with moderately impaired renal function. Two preclinical data presentations show the future potential of melflufen in treatments of other hematological diseases outside multiple myeloma. In addition, the last preclinical data presentation provides an increased understanding of melflufen ‘s mode of action

STOCKHOLM — May 5, 2021 — Oncopeptides AB (publ) (Nasdaq Stockholm: ONCO), a global biotech company focused on the development of therapies for difficult-to-treat hematological diseases, today announces that the Company has completed patient enrollment in the phase 2 PORT study. The PORT study is an open-label, randomized, cross-over study which compares safety, tolerability and efficacy of peripheral or central intravenous administration of melflufen (INN melphalan flufenamide) in combination with dexamethasone in relapsed refractory multiple myeloma. Oncopeptides expects topline data in Q3 2021

Stockholm — April 30, 2021 — Oncopeptides AB (Nasdaq Stockholm, ONCO) today announces that the number of shares and votes in Oncopeptides has changed due to the directed issue of 7,000,000 shares, which was carried out in March, and registered by the Swedish Companies Registration Office in April 2021

STOCKHOLM — April 26, 2021 — Oncopeptides AB (publ) (Nasdaq Stockholm: ONCO), a global biotech company focused on the development of therapies for difficult-to-treat hematological diseases, today publishes the 2020 Annual Report