Evidence map›Paper›PMID 27908880›Full record

ArticleBlood2017

An anti-CD3/anti-CLL-1 bispecific antibody for the treatment of acute myeloid leukemia.

Steven R Leong, Siddharth Sukumaran, Maria Hristopoulos, Klara Totpal, Shannon Stainton, Elizabeth Lu, Alfred Wong, Lucinda Tam, Robert Newman, Brian R Vuillemenot and 13 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 1 pooled it
10.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

98 citing papers in PubMed, 1 synthesis or guideline pooled it, 152 citations in OpenAlex.

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  15. New immune cell engagers for cancer immunotherapy.Nature reviews. Immunology · 2024
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38 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

23 authors.

Steven R LeongResearch and Early Development, Genentech, South San Francisco, CA.
Siddharth SukumaranResearch and Early Development, Genentech, South San Francisco, CA.
Maria HristopoulosResearch and Early Development, Genentech, South San Francisco, CA.
Klara TotpalResearch and Early Development, Genentech, South San Francisco, CA.
Shannon StaintonResearch and Early Development, Genentech, South San Francisco, CA.
Elizabeth LuResearch and Early Development, Genentech, South San Francisco, CA.
Alfred WongResearch and Early Development, Genentech, South San Francisco, CA.
Lucinda TamResearch and Early Development, Genentech, South San Francisco, CA.
Robert NewmanResearch and Early Development, Genentech, South San Francisco, CA.
Brian R VuillemenotResearch and Early Development, Genentech, South San Francisco, CA.
Diego EllermanResearch and Early Development, Genentech, South San Francisco, CA.
Chen GuResearch and Early Development, Genentech, South San Francisco, CA.
Mary MathieuResearch and Early Development, Genentech, South San Francisco, CA.
Mark S DennisResearch and Early Development, Genentech, South San Francisco, CA.
Allen NguyenResearch and Early Development, Genentech, South San Francisco, CA.
Bing ZhengResearch and Early Development, Genentech, South San Francisco, CA.
Crystal ZhangResearch and Early Development, Genentech, South San Francisco, CA.
Genee LeeResearch and Early Development, Genentech, South San Francisco, CA.
Yu-Waye ChuResearch and Early Development, Genentech, South San Francisco, CA.
Rodney A PrellResearch and Early Development, Genentech, South San Francisco, CA.
Kedan LinResearch and Early Development, Genentech, South San Francisco, CA.
Steven T LaingResearch and Early Development, Genentech, South San Francisco, CA.
Andrew G PolsonResearch and Early Development, Genentech, South San Francisco, CA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acute myeloid leukemia (AML) is a major unmet medical need. Most patients have poor long-term survival, and treatment has not significantly changed in 40 years. Recently, bispecific antibodies that redirect the cytotoxic activity of effector T cells by binding to CD3, the signaling component of the T-cell receptor, and a tumor target have shown clinical activity. Notably, blinatumomab is approved to treat relapsed/refractory acute lymphoid leukemia. Here we describe the design, discovery, pharmacologic activity, pharmacokinetics, and safety of a CD3 T cell-dependent bispecific (TDB) full-length human IgG1 therapeutic antibody targeting CLL-1 that could potentially be used in humans to treat AML. CLL-1 is prevalent in AML and, unlike other targets such as CD33 and CD123, is not expressed on hematopoietic stem cells providing potential hematopoietic recovery. We selected a high-affinity monkey cross-reactive anti-CLL-1 arm and tested several anti-CD3 arms that varied in affinity, and determined that the high-affinity CD3 arms were up to 100-fold more potent in vitro. However, in mouse models, the efficacy differences were less pronounced, probably because of prolonged exposure to TDB found with lower-affinity CD3 TDBs. In monkeys, assessment of safety and target cell depletion by the high- and low-affinity TDBs revealed that only the low-affinity CD3/CLL1 TDB was well tolerated and able to deplete target cells. Our data suggest that an appropriately engineered CLL-1 TDB could be effective in the treatment of AML.

Indexed as

AnimalsAntibodies, BispecificAntineoplastic AgentsCell Line, TumorHumansLectins, C-TypeLeukemia, Myeloid, AcuteMacaca fascicularisMice, Inbred C57BLMice, TransgenicSialic Acid Binding Ig-like Lectin 3Antibodies, BispecificAntineoplastic AgentsCD33 protein, humanLectins, C-TypeSialic Acid Binding Ig-like Lectin 3

Identifiers

PMID27908880
PMCPMC5290988
OpenAlexW2558279374

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.