MacroGenics Provides Vobramitamab Duocarmazine Update, Abstract Of Clinical Data Accepted For Poster Presentation At ESMO Congress 2024 In September; Gives TAMARACK Study Update, Says "Patient Safety Is Our Top Priority, And Having Reached The Study's Primary Endpoint, We Decided To Discontinue Additional Dosing For The Remaining Tamarack Participants Who Had Not Yet Completed Treatment:

Author: Benzinga Newsdesk | July 30, 2024 04:20pm

TAMARACK Study Update

MacroGenics completed enrollment of the TAMARACK study in the fourth quarter of 2023, and plans to present at ESMO the study's landmark primary endpoint of 6-month rPFS rate, which represents the proportion of study participants who remain alive and progression-free at 6 months.

In late July 2024, after a review of accumulated study data, MacroGenics agreed with the study's Independent Data Monitoring Committee's (IDMC) recommendation that study treatment should be discontinued for the remaining mCRPC study participants who potentially could have received additional doses. Most of these remaining study participants had already received 8-12 cycles of vobra duo. Participants continue to be monitored for adverse events, disease progression and survival.

"Patient safety is our top priority, and having reached the study's primary endpoint, we decided to discontinue additional dosing for the remaining TAMARACK participants who had not yet completed treatment. We expect to have the data necessary to determine next steps for the vobra duo program later this year and will provide further updates on an investor call following our ESMO presentation," continued Dr. Koenig. "We are committed to fully assessing the potential of vobra duo in mCRPC through rigorous evaluation of the data, including the mature median rPFS and OS. We look forward to completing follow-up for the TAMARACK trial before year-end and presenting final data at a future conference."

The Company expects to have the mature efficacy findings, including median rPFS, later in the second half of 2024 and plans to present the data at a subsequent medical conference. The data to be presented at ESMO will be used to inform how future potential studies could be designed.

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