Evidence map›Paper›PMID 35631396›Full record

ArticlePharmaceuticals (Basel, Switzerland)2022

Carbonic Anhydrase IX-Targeted α-Radionuclide Therapy with 225Ac Inhibits Tumor Growth in a Renal Cell Carcinoma Model.

Robin I J Merkx, Mark Rijpkema, Gerben M Franssen, Annemarie Kip, Bart Smeets, Alfred Morgenstern, Frank Bruchertseifer, Eddie Yan, Michael P Wheatcroft, Egbert Oosterwijk and 2 more

Open access · goldAbstract read
In one paragraph

Article in Pharmaceuticals (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

  1. Predicting tumour and organ dose in α-radiopharmaceutical therapy: aEuropean journal of nuclear medicine and molecular imaging · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. The molecular blueprint of targeted radionuclide therapy.Nature reviews. Clinical oncology · 2025
    Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Development ofJournal of nanobiotechnology · 2024
    Article
  13. Recent advances in the development ofAnalytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Article
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

12 authors at 3 institutions in 2 countries.

Robin I J MerkxDepartment of Medical Imaging, Nuclear Medicine, Radboudumc, 6525 Nijmegen, The Netherlands.
Mark RijpkemaDepartment of Medical Imaging, Nuclear Medicine, Radboudumc, 6525 Nijmegen, The Netherlands.
Gerben M FranssenDepartment of Medical Imaging, Nuclear Medicine, Radboudumc, 6525 Nijmegen, The Netherlands.
Annemarie KipDepartment of Medical Imaging, Nuclear Medicine, Radboudumc, 6525 Nijmegen, The Netherlands.
Bart SmeetsDepartment of Pathology, Radboudumc, 6525 Nijmegen, The Netherlands.
Alfred MorgensternEuropean Commission, Joint Research Centre (JRC), 76344 Karlsruhe, Germany.
Frank BruchertseiferEuropean Commission, Joint Research Centre (JRC), 76344 Karlsruhe, Germany.
Eddie YanTelix Pharmaceuticals Limited, Melbourne, VIC 3051, Australia.
Michael P WheatcroftTelix Pharmaceuticals Limited, Melbourne, VIC 3051, Australia.
Egbert OosterwijkDepartment of Urology, Radboudumc, 6525 Nijmegen, The Netherlands.
Peter F A MuldersDepartment of Urology, Radboudumc, 6525 Nijmegen, The Netherlands.
Sandra HeskampDepartment of Medical Imaging, Nuclear Medicine, Radboudumc, 6525 Nijmegen, The Netherlands.
Radboud University Medical Center · NLJoint Research Centre · DERadboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, we compared the tumor-targeting properties, therapeutic efficacy, and tolerability of the humanized anti-CAIX antibody (hG250) labeled with either the α-emitter actinium-225 (225Ac) or the β--emitter lutetium-177 (177Lu) in mice. BALB/c nude mice were grafted with human renal cell carcinoma SK-RC-52 cells and intravenously injected with 30 µg [225Ac] Ac-DOTA-hG250 (225Ac-hG250) or 30 µg [177Lu] Lu-DOTA-hG250 (177Lu-hG250), followed by ex vivo biodistribution studies. Therapeutic efficacy was evaluated in mice receiving 5, 15, and 25 kBq of 225Ac-hG250; 13 MBq of 177Lu-hG250; or no treatment. Tolerability was evaluated in non-tumor-bearing animals. High tumor uptake of both radioimmunoconjugates was observed and increased up to day 7 (212.8 ± 50.2 %IA/g vs. 101.0 ± 18.4 %IA/g for 225Ac-hG250 and 177Lu-hG250, respectively). Survival was significantly prolonged in mice treated with 15 kBq 225Ac-hG250, 25 kBq 225Ac-hG250, and 13 MBq 177Lu-hG250 compared to untreated control (p < 0.05). Non-tumor-bearing mice that received single-dose treatment with 15 or 25 kBq 225Ac-hG250 showed weight loss at the end of the experiment (day 126), and immunohistochemical analysis suggested radiation-induced nephrotoxicity. These results demonstrate the therapeutic potential of CAIX-targeted α-therapy in renal cell carcinoma. Future studies are required to find an optimal balance between therapeutic efficacy and toxicity.

Indexed as

actinium-225CAIXG250radioimmunotherapyRCC

Identifiers

PMID35631396
PMCPMC9142961
OpenAlexW4225324576

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.