Evidence map›Paper›PMID 39673396›Full record

ArticleClinical and experimental immunology2025

Comparative efficacy of leniolisib (CDZ173) versus standard of care on rates of respiratory tract infection and serum immunoglobulin M (IgM) levels among individuals with activated phosphoinositide 3-kinase delta (PI3Kδ) syndrome (APDS): an externally controlled study.

John Whalen, Anita Chandra, Sven Kracker, Stephan Ehl, Markus G Seidel, Ioana Gulas, Louis Dron, Russanthy Velummailum, Chenthila Nagamuthu, Sichen Liu and 2 more

Registry-linked trialAbstract readComparative Study
In one paragraph

Article in Clinical and experimental immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02859727 (An Open-label, Non-randomized Extension Study to Evaluate the Long Term Safety, Tolerability, Efficacy and Pharmacokinetics of CDZ173 in Patients With APDS/PASLI), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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.

NCT02859727 phase2 / phase3terminatednot on this map

An Open-label, Non-randomized Extension Study to Evaluate the Long Term Safety, Tolerability, Efficacy and Pharmacokinetics of CDZ173 in Patients With APDS/PASLI (Activated Phosphoinositide 3-kinase Delta Syndrome/p110δ-activating Mutation Causing Senescent T Cells, Lymphadenopathy and Immunodeficiency)

TypeinterventionalSponsorPharming Technologies B.V.Ran2016 to 2025Enrolled37ConditionsActivated PI3Kdelta Syndrome (APDS), PASLI DiseaseArmsCDZ173
3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Trial
  2. A renaissance in targeting the PI3K/AKT/mTOR pathway.Nature reviews. Drug discovery · 2026
    Review
  3. Article
  4. Article
  5. 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

12 authors.

John WhalenPharming Group N.V., Leiden, The Netherlands.
Anita ChandraDepartment of Medicine, University of Cambridge, Cambridge, UK.
Sven KrackerUniversité Paris Cité, Imagine Institute, Laboratory of Human Lymphohematopoiesis, INSERM UMR 1163, F-7015, Paris, France.
Stephan EhlInstitute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Markus G SeidelDivision of Pediatric Hematology Oncology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Austria.
Ioana GulasCytel Inc., Toronto, Ontario, Canada.
Louis DronCytel Inc., Toronto, Ontario, Canada.
Russanthy VelummailumCytel Inc., Toronto, Ontario, Canada.
Chenthila NagamuthuCytel Inc., Toronto, Ontario, Canada.
Sichen LiuCytel Inc., Toronto, Ontario, Canada.
Joanne Tutein NoltheniusPharming Group N.V., Leiden, The Netherlands.
Maria Elena MaccariInstitute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leniolisib, an oral, targeted phosphoinositide 3-kinase delta (PI3Kδ) inhibitor, was well-tolerated and efficacious versus placebo in treating individuals with activated PI3Kδ syndrome (APDS), an ultra-rare inborn error of immunity (IEI), in a 12-week randomised controlled trial. However, longer-term comparative data versus standard of care are lacking. This externally controlled study compared the long-term effects of leniolisib on annual rate of respiratory tract infections and change in serum immunoglobulin M (IgM) levels versus current standard of care, using data from the leniolisib single-arm open-label extension study 2201E1 (NCT02859727) and the European Society for Immunodeficiencies (ESID) registry. The endpoints were chosen following feasibility assessment considering comparability and availability of data from both sources. Baseline characteristics between groups were balanced through inverse probability of treatment weighting. The leniolisib-treated group included 37 participants, with 62 and 49 participants in the control group for the respiratory tract infections and serum IgM analyses, respectively. Significant reductions in the annual rate of respiratory tract infections (rate ratio: 0.34; 95% confidence interval [CI]: 0.19, 0.59) and serum IgM levels (treatment effect: -1.09 g/L; 95% CI: -1.78, -0.39, P = 0.002) were observed in leniolisib-treated individuals versus standard of care. The results were consistent across all sensitivity analyses, regardless of censoring, baseline infection rate definition, missing data handling, or covariate selection. These novel data provide an extended comparison of leniolisib treatment versus standard of care, highlighting the potential for leniolisib to deliver long-term benefits by restoring immune system function and reducing infection rate, potentially reducing complications and treatment burden.

Indexed as

Class I Phosphatidylinositol 3-KinasesImmunoglobulin MPrimary Immunodeficiency DiseasesRespiratory Tract InfectionsAdolescentAdultChildChild, PreschoolClinical Trials, Phase II as TopicClinical Trials, Phase III as TopicFemaleHumansMaleMiddle AgedObservational Studies as TopicStandard of CareClass I Phosphatidylinositol 3-KinasesImmunoglobulin MAPDSESIDimmunoglobulininfectionleniolisibPI3Kδ

Identifiers

PMID39673396
PMCPMC11754865

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.