Genmab is ending clinical development of acasunlimab, a bispecific antibody that the biotech had worked on with BioNTech until that partner
walked away from the asset
last year.
The Danish drug developer said Monday it axed the Phase 3 lung cancer asset to focus on “the most value-creating opportunities” in its late-stage portfolio and after a “thorough assessment of the evolving competitive landscape.” Genmab recently expanded its late-stage pipeline via its
$8 billion acquisition
of Merus, and it also has Phase 3 programs for Rina-S and Epkinly.
Acasunlimab is a PD-L1x4-1BB bispecific antibody.
NovaBridge Biosciences
and partner ABL Bio are also in the space.
The pullback is an abrupt change from earlier this month, when CFO Anthony Pagano told attendees at the Citi Global Healthcare Conference that the
Phase 3
of acasunlimab was “progressing well” and presented an “around $1 billion opportunity,” according to an AlphaSense transcript. The trial was expected to take another three years, according to the entry on the US federal trials database.
At the time BioNTech gave up work on the asset last year, Genmab CEO Jan van de Winkel
said
his company was “exceptionally well-positioned to maximize the potential of acasunlimab, and we are confident about the prospect of taking acasunlimab into late-stage development.”
William Blair analyst Matt Phipps told clients in a note Monday that “acasunlimab rightfully hits the chopping block.”
“We believe this is the right decision, given recent deterioration of the overall survival curve from the Phase II trial with longer follow-up,” Phipps wrote.
Genmab, which will have to integrate Merus after
completing
a tender offer earlier this month, already made a series of pipeline culls this year as it digested its acquisition of antibody-drug conjugates maker ProfoundBio. Over the past 13 months, it has ended development of
GEN1047
, GEN1056, GEN3017,
GEN1107
,
GEN1160
and GEN1055/
BNT315
. It also didn’t advance
GEN1042
into Phase 2 for solid tumors.
Genmab has no plans for a workforce reduction following the acasunlimab pullback, a Genmab spokesperson told
Endpoints News.
The biotech still has one active asset in its years-long collaboration with BioNTech, the spokesperson said. GEN1059/BNT314, an EpCAMx4-1BB bispecific antibody, is in
Phase 1
for solid tumors.