Evidence map›Paper›PMID 34635485›Full record

ArticleCancer immunology research2021

Conditional PD-1/PD-L1 Probody Therapeutics Induce Comparable Antitumor Immunity but Reduced Systemic Toxicity Compared with Traditional Anti-PD-1/PD-L1 Agents.

Hikmat H Assi, Chihunt Wong, Kimberly A Tipton, Li Mei, Ken Wong, Jennifer Razo, Chanty Chan, Bruce Howng, Jason Sagert, Michael Krimm and 16 more

Open access · greenAbstract read
In one paragraph

Article in Cancer immunology research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Conditionally Activatable Antibody Platforms: Mechanisms, Modalities, and Clinical Translation Potential.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. In silico evolution of autoinhibitory domains for a PD-L1 antagonist using deep learning models.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  12. Article
  13. Review
  14. bioRxiv : the preprint server for biology · 2023
    Article
  15. Review
  16. Targeting syndecan-1: new opportunities in cancer therapy.American journal of physiology. Cell physiology · 2022
    Review
  17. Review
  18. Review
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

26 authors at 1 institution in 1 country.

Hikmat H AssiCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0001-9759-0171
Chihunt WongCytomX Therapeutics, Inc., South San Francisco, California.
Kimberly A TiptonCytomX Therapeutics, Inc., South San Francisco, California.
Li MeiCytomX Therapeutics, Inc., South San Francisco, California.
Ken WongCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0001-5032-6605
Jennifer RazoCytomX Therapeutics, Inc., South San Francisco, California.
Chanty ChanCytomX Therapeutics, Inc., South San Francisco, California.
Bruce HowngCytomX Therapeutics, Inc., South San Francisco, California.
Jason SagertCytomX Therapeutics, Inc., South San Francisco, California.
Michael KrimmCytomX Therapeutics, Inc., South San Francisco, California.
Linnea DiepCytomX Therapeutics, Inc., South San Francisco, California.
Andrew JangCytomX Therapeutics, Inc., South San Francisco, California.
Margaret T NguyenCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0003-0878-5896
Nicole LapuyadeCytomX Therapeutics, Inc., South San Francisco, California.
Victoria SingsonCytomX Therapeutics, Inc., South San Francisco, California.
Ruth VillanuevaCytomX Therapeutics, Inc., South San Francisco, California.
Madan PaidhungatCytomX Therapeutics, Inc., South San Francisco, California.
Shouchun LiuCytomX Therapeutics, Inc., South San Francisco, California.
Vangipuram RanganCytomX Therapeutics, Inc., South San Francisco, California.
Olga VasiljevaCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0003-3648-5460
James W WestCytomX Therapeutics, Inc., South San Francisco, California.
Jennifer H RichardsonCytomX Therapeutics, Inc., South San Francisco, California.
Bryan IrvingCytomX Therapeutics, Inc., South San Francisco, California.
Dylan DanielCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0003-0520-4427
Marcia BelvinCytomX Therapeutics, Inc., South San Francisco, California.
W Michael KavanaughCytomX Therapeutics, Inc., South San Francisco, California. mkavanaugh@cytomx.com.ORCID 0000-0002-3938-0608
CytomX Therapeutics (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune-checkpoint blockade has revolutionized cancer treatment. However, most patients do not respond to single-agent therapy. Combining checkpoint inhibitors with other immune-stimulating agents increases both efficacy and toxicity due to systemic T-cell activation. Protease-activatable antibody prodrugs, known as Probody therapeutics (Pb-Tx), localize antibody activity by attenuating capacity to bind antigen until protease activation in the tumor microenvironment. Herein, we show that systemic administration of anti-programmed cell death ligand 1 (anti-PD-L1) and anti-programmed cell death protein 1 (anti-PD-1) Pb-Tx to tumor-bearing mice elicited antitumor activity similar to that of traditional PD-1/PD-L1-targeted antibodies. Pb-Tx exhibited reduced systemic activity and an improved nonclinical safety profile, with markedly reduced target occupancy on peripheral T cells and reduced incidence of early-onset autoimmune diabetes in nonobese diabetic mice. Our results confirm that localized PD-1/PD-L1 inhibition by Pb-Tx can elicit robust antitumor immunity and minimize systemic immune-mediated toxicity. These data provide further preclinical rationale to support the ongoing development of the anti-PD-L1 Pb-Tx CX-072, which is currently in clinical trials.

Indexed as

Amino Acid SequenceAnimalsAntibodies, MonoclonalB7-H1 AntigenCell Line, TumorDisease Models, AnimalHumansImmunotherapyMiceTumor MicroenvironmentAntibodies, MonoclonalB7-H1 Antigen

Identifiers

PMID34635485
PMCPMC9414278
OpenAlexW3207626883

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.