Evidence map›Paper›PMID 35817480›Full record

Trial reportJournal for immunotherapy of cancer2022

TransCon IL-2 β/γ: a novel long-acting prodrug with sustained release of an IL-2Rβ/γ-selective IL-2 variant with improved pharmacokinetics and potent activation of cytotoxic immune cells for the treatment of cancer.

David B Rosen, Anne Månsson Kvarnhammar, Burkhardt Laufer, Thomas Knappe, Jens Jakob Karlsson, Enping Hong, Yu-Chi Lee, Dhruv Thakar, Luis Alejandro Zúñiga, Kathy Bang and 25 more

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in Journal for immunotherapy of cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05081609 (IL Believe), which is not on this map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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.

NCT05081609 phase1 / phase2active not recruitingnot on this map

IL Believe: A Phase 1/2, Open-label, Dose Escalation and Dose Expansion Study to Investigate the Safety and Tolerability of TransCon IL-2 β/γ Alone or in Combination With Pembrolizumab, TransCon TLR7/8 Agonist, or Other Anticancer Therapies, in Adult Participants With Locally Advanced or Metastatic Solid Tumor Malignancies

TypeinterventionalSponsorAscendis Pharma Oncology Division A/SRan2022 to 2029Enrolled320ConditionsAdvanced Solid Tumor, Locally Advanced Solid Tumor, Metastatic Solid Tumor, Platinum-resistant Ovarian CancerArmsTransCon IL-2 β/γ, Pembrolizumab, Chemotherapy drug, TransCon TLR7/8 Agonist, Surgery
3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
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  7. Article
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  13. Multimodal cell-cell communication driving CD8Frontiers in immunology · 2025
    Review
  14. Targeting cytokine and chemokine signaling pathways for cancer therapy.Signal transduction and targeted therapy · 2024
    Review
  15. Review
  16. Review
  17. Interleukin-2-induced skin inflammation.European journal of immunology · 2024
    Article
  18. Review
  19. Molecular Engineering of Interleukin-2 for Enhanced Therapeutic Activity in Autoimmune Diseases.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2024
    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

35 authors.

David B RosenAscendis Pharma Inc, Redwood City, California, USA drn@ascendispharma.com.ORCID 0000-0002-9856-7675
Anne Månsson KvarnhammarAscendis Pharma A/S, Hellerup, Denmark.
Burkhardt LauferAscendis Pharma GmbH, Heidelberg, Germany.
Thomas KnappeAscendis Pharma GmbH, Heidelberg, Germany.
Jens Jakob KarlssonAscendis Pharma A/S, Hellerup, Denmark.
Enping HongAscendis Pharma Inc, Redwood City, California, USA.
Yu-Chi LeeAscendis Pharma Inc, Redwood City, California, USA.
Dhruv ThakarAscendis Pharma Inc, Redwood City, California, USA.
Luis Alejandro ZúñigaAscendis Pharma Inc, Redwood City, California, USA.ORCID 0000-0002-1832-122X
Kathy BangAscendis Pharma Inc, Redwood City, California, USA.
Simran Singh SabharwalAscendis Pharma Inc, Redwood City, California, USA.
Karan UppalAscendis Pharma Inc, Redwood City, California, USA.
Janne Damm OllingAscendis Pharma A/S, Hellerup, Denmark.
Kristian KjaergaardAscendis Pharma A/S, Hellerup, Denmark.
Thomas KurpiersAscendis Pharma GmbH, Heidelberg, Germany.
Meike SchnabelAscendis Pharma GmbH, Heidelberg, Germany.
Diana ReichAscendis Pharma GmbH, Heidelberg, Germany.
Philipp GlockAscendis Pharma GmbH, Heidelberg, Germany.
Joachim ZettlerAscendis Pharma GmbH, Heidelberg, Germany.
Mathias KruschAscendis Pharma GmbH, Heidelberg, Germany.
Ana BernhardAscendis Pharma GmbH, Heidelberg, Germany.
Stefan HeinigAscendis Pharma GmbH, Heidelberg, Germany.
Valentino KonjikAscendis Pharma GmbH, Heidelberg, Germany.
Thomas WeggeAscendis Pharma GmbH, Heidelberg, Germany.
Yvonne HehnAscendis Pharma GmbH, Heidelberg, Germany.
Steffen KillianAscendis Pharma GmbH, Heidelberg, Germany.
Laura VietAscendis Pharma GmbH, Heidelberg, Germany.
Josefine RunzAscendis Pharma GmbH, Heidelberg, Germany.
Frank FaltingerAscendis Pharma GmbH, Heidelberg, Germany.
Mohammad TabriziAscendis Pharma Inc, Redwood City, California, USA.
Kristin Laura AbelAscendis Pharma A/S, Hellerup, Denmark.
Vibeke Miller BreinholtAscendis Pharma A/S, Hellerup, Denmark.
Stina M SingelAscendis Pharma Inc, Palo Alto, California, USA.
Kennett SprogøeAscendis Pharma A/S, Hellerup, Denmark.
Juha PunnonenAscendis Pharma Inc, Redwood City, California, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecombinant interleukin-2 (IL-2, aldesleukin) is an approved cancer immunotherapy but causes severe toxicities including cytokine storm and vascular leak syndrome (VLS). IL-2 promotes antitumor function of IL-2Rβ/γ

methodsTransCon IL-2 β/γ was designed to optimally address these drawbacks. To abolish IL-2Rα binding yet retain strong IL-2Rβ/γ activity, IL-2 β/γ was created by permanently attaching a small methoxy polyethylene glycol (mPEG) moiety in the IL-2Rα binding site. To improve pharmacokinetics, IL-2 β/γ was transiently attached to a 40 kDa mPEG carrier via a TransCon (transient conjugation) linker creating a prodrug, TransCon IL-2 β/γ, with sustained release of IL-2 β/γ. IL-2 β/γ was characterized in binding and primary cell assays while TransCon IL-2 β/γ was studied in tumor-bearing mice and cynomolgus monkeys.

resultsIL-2 β/γ demonstrated selective and potent human IL-2Rβ/γ binding and activation without IL-2Rα interactions. TransCon IL-2 β/γ showed slow-release pharmacokinetics with a low C SUMMARY: TransCon IL-2 β/γ is a novel long-acting prodrug with sustained release of an IL-2Rβ/γ-selective IL-2. It has remarkable and durable pharmacodynamic effects in monkeys and potential for improved clinical efficacy and tolerability compared with aldesleukin. TransCon IL-2 β/γ is currently being evaluated in a Phase 1/2 clinical trial (NCT05081609).

Indexed as

NeoplasmsProdrugsAnimalsCD8-Positive T-LymphocytesCytokine Release SyndromeDelayed-Action PreparationsEndothelial CellsHumansInterleukin-2Interleukin-2 Receptor alpha SubunitMiceDelayed-Action PreparationsInterleukin-2Interleukin-2 Receptor alpha SubunitProdrugsCytokinesImmunotherapyKiller Cells, NaturalLymphocyte ActivationT-Lymphocytes

Identifiers

PMID35817480
PMCPMC9274542
OpenAlexW4285005811

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.