Evidence map›Paper›PMID 40408051›Full record

ArticleDrugs in R&D2025

Evaluation of Anti-SARS-CoV-2 IgG Responses in a Clinical Study of a Biosimilar Candidate to Denosumab Using Singlicate Analysis.

Sandra Ribes, Natalia Krivtsova, Celine Schelcher, Ana Villalba-Izquierdo, Falko Reiss, Mandy Richter, Katrin Reisinger, Johann Poetzl

Abstract read
In one paragraph

Article in Drugs in R&D, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Sandra RibesGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany. sandra.ribes_miravet@sandoz.net.ORCID http://orcid.org/0000-0002-4512-8687
Natalia KrivtsovaGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.
Celine SchelcherGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.
Ana Villalba-IzquierdoGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.
Falko ReissGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.
Mandy RichterGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.
Katrin ReisingerGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.
Johann PoetzlGlobal Clinical Development, Hexal AG (a Sandoz Company), Holzkirchen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesDuring the coronavirus disease-2019 (COVID-19) pandemic there was the uncertainty that the long-term immune response generated upon natural infection or triggered by available severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) vaccines could impact the clinical endpoints of ongoing clinical trials, in particular, whether the immunogenicity of biotherapeutics could be affected.

methodsHere, we describe the different stages to build an adequate COVID-19 serology testing strategy to ultimately assess whether the presence of anti-SARS-CoV-2 antibodies could impact the immunogenicity data of a clinical trial supporting the approval of GP2411 (Jubbonti

resultsSARS-CoV-2 serology was assessed in 1970 serum samples collected from 499 healthy participants who were dosed throughout a clinical study that was conducted during the COVID-19 pandemic. Anti-SARS-CoV-2 IgG antibodies triggered by natural infection and/or vaccination were detected in 1165 serum samples from 82% of the study participants. Anti-SARS-COV-2 IgG responses were of comparable magnitude in study participants who were vaccinated during the course of the study or had a confirmed COVID-19 infection. A total of 6408 serum samples from the same study were evaluated for the presence of anti-drug antibodies (ADAs), with 64% of the participants being positive. Independent of the presence of anti-SARS-CoV-2 IgG antibodies, all ADA-positive study participants showed ADAs of very low magnitude. Neutralizing ADAs were detected in less than 1% of study participants without an association to anti-SARS-CoV-2 IgG responses.

conclusionsThe established bioanalytical strategy allowed the reliable detection of COVID-19 adaptive responses in study participants. The development of anti-SARS-CoV-2 IgG responses (triggered by either a natural infection or a vaccine) did not have any clinically meaningful impact on the immunogenicity of the biotherapeutic administered in the study.

Indexed as

Antibodies, ViralBiosimilar PharmaceuticalsCOVID-19DenosumabImmunoglobulin GSARS-CoV-2AdultCOVID-19 Drug TreatmentEnzyme-Linked Immunosorbent AssayFemaleHumansMaleMiddle AgedAntibodies, ViralBiosimilar PharmaceuticalsDenosumabImmunoglobulin G

Identifiers

PMID40408051
PMCPMC12185828

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Registered trials

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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.