Evidence map›Paper›PMID 35165101›Full record

Trial reportClinical cancer research : an official journal of the American Association for Cancer Research2022

Praluzatamab Ravtansine, a CD166-Targeting Antibody-Drug Conjugate, in Patients with Advanced Solid Tumors: An Open-Label Phase I/II Trial.

Valentina Boni, Mary J Fidler, Hendrik-Tobias Arkenau, Alexander Spira, Funda Meric-Bernstam, Nataliya Uboha, Rachel E Sanborn, Randy F Sweis, Patricia LoRusso, Misako Nagasaka and 18 more

Open access · hybridAbstract readClinical Trial, Phase IClinical Trial, Phase II
In one paragraph

Trial report in Clinical cancer research : an official journal of the American Association for Cancer Research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

37 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Review
  3. De novo design of protease-activatable cytokine prodrugs.bioRxiv : the preprint server for biology · 2026
    Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. 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

28 authors at 17 institutions in 4 countries.

Valentina BoniSTART Madrid HM CIOCC (Centro Integral Oncológico Clara Campal), Hospital Universitario HM Sanchinarro, HM Hospitales, Madrid, Spain.ORCID 0000-0002-8675-0018
Mary J FidlerRush University Medical Center, Chicago, Illinois.
Hendrik-Tobias ArkenauSarah Cannon Research Institute UK Limited, London, United Kingdom.
Alexander SpiraVirginia Cancer Specialists, Fairfax, Virginia.
Funda Meric-BernstamMD Anderson Cancer Center, Houston, Texas.ORCID 0000-0001-6816-6072
Nataliya UbohaUniversity of Wisconsin-Carbone Cancer Center, Madison, Wisconsin.
Rachel E SanbornEarle A. Chiles Research Institute, Providence Cancer Institute, Portland, Oregon.ORCID 0000-0003-0542-6054
Randy F SweisUniversity of Chicago Medicine, Chicago, Illinois.ORCID 0000-0002-0497-9637
Patricia LoRussoYale University School of Medicine, New Haven, Connecticut.
Misako NagasakaBarbara Ann Karmanos Cancer Institute, Detroit, Michigan.ORCID 0000-0001-5308-615X
Javier Garcia-CorbachoHospital Clinic Barcelona, Barcelona/IDIBAPs, Spain.ORCID 0000-0002-6109-8449
Shadia JalalIndiana University Melvin and Bren Simon Cancer Center, Indianapolis, Indiana.
James J HardingMemorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York.ORCID 0000-0002-7029-4310
Stella K KimRobert Cizik Eye Clinic, Houston, Texas.
Iris H C MiedemaDepartment of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.ORCID 0000-0002-7581-5277
Danielle J VugtsDepartment of Radiology and Nuclear Medicine, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.ORCID 0000-0001-7068-8152
Marc C HuismanDepartment of Radiology and Nuclear Medicine, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.
Gerben J C ZwezerijnenDepartment of Radiology and Nuclear Medicine, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.ORCID 0000-0002-9571-9362
Guus A M S van DongenDepartment of Radiology and Nuclear Medicine, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.ORCID 0000-0001-5939-9851
C Willemien Menke van der Houven van OordtDepartment of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.ORCID 0000-0002-5404-5883
Song WangCytomX Therapeutics, Inc., South San Francisco, California.
Tam DangCytomX Therapeutics, Inc., South San Francisco, California.
Ivan A ZeinCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0003-4828-4279
Olga VasiljevaCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0003-3648-5460
Susan K LymanCytomX Therapeutics, Inc., South San Francisco, California.
Virginia PatonCytomX Therapeutics, Inc., South San Francisco, California.ORCID 0000-0002-3912-9050
Alison HannahCytomX Therapeutics, Inc., South San Francisco, California.
Joyce F LiuDana-Farber Cancer Institute, Boston, Massachusetts.
CytomX Therapeutics (United States) · USVrije Universiteit Amsterdam · NLDana-Farber Cancer Institute · USHM Hospitales · ESHospital Clínic de Barcelona · ESIndiana University Health · USMemorial Sloan Kettering Cancer Center · USProvidence Portland Medical Center · USRobert Cizik Eye Clinic · USRush University Medical Center · USSarah Cannon Research Institute · GBThe Barbara Ann Karmanos Cancer Institute · USThe University of Texas MD Anderson Cancer Center · USUniversity of Illinois Chicago · USUniversity of New Haven · USUniversity of Wisconsin Carbone Cancer Center · USVirginia Cancer Specialists · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
Unfolded Protein Response and Autophagy in T Helper Cell Effector FunctionP20GM121176 · NIGMS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Monica Rosas Lemus · 2017 to 2026
$24.9M
CSRD VA I01 CX002009NCI NIH HHS P30 CA008748NIGMS NIH HHS P20 GM121176
6 · The paper itself

Abstract

purposePraluzatamab ravtansine (CX-2009) is a conditionally activated Probody drug conjugate (PDC) comprising an anti-CD166 mAb conjugated to DM4, with a protease-cleavable linker and a peptide mask that limits target engagement in normal tissue and circulation. The tumor microenvironment is enriched for proteases capable of cleaving the linker, thereby releasing the mask, allowing for localized binding of CX-2009 to CD166. CX-2009 was evaluated in a phase I/II clinical trial for patients with advanced solid tumors. PATIENTS AND

methodsEligible patients had metastatic cancer receiving ≥2 prior treatments. CX-2009 was administered at escalating doses every 3 weeks (0.25-10 mg/kg) or every 2 weeks (4-6 mg/kg). Primary objective was to determine the safety profile and recommended phase II dose (RP2D).

resultsOf 99 patients enrolled, the most prevalent subtype was breast cancer (n = 45). Median number of prior therapies was 5 (range, 1-19). Dose-limiting toxicities were observed at 8 mg/kg every 3 weeks and 6 mg/kg every 2 weeks. On the basis of tolerability, the RP2D was 7 mg/kg every 3 weeks. Tumor regressions were observed at doses ≥4 mg/kg. In the hormone receptor-positive/HER2-nonamplified breast cancer subset (n = 22), 2 patients (9%) had confirmed partial responses, and 10 patients (45%) had stable disease. Imaging with zirconium-labeled CX-2009 confirmed uptake in tumor lesions and shielding of major organs. Activated, unmasked CX-2009 was measurable in 18 of 22 posttreatment biopsies.

conclusionsCD166 is a novel, ubiquitously expressed target. CX-2009 is the first conditionally activated antibody-drug conjugate to CD166 to demonstrate both translational and clinical activity in a variety of tumor types.

Indexed as

Antineoplastic AgentsBreast NeoplasmsImmunoconjugatesMaytansineNeoplasmsFemaleHumansTumor MicroenvironmentAntineoplastic AgentsImmunoconjugatesMaytansine

Identifiers

PMID35165101
PMCPMC9365353
OpenAlexW4212946280

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.