Evidence map›Paper›PMID 36167856›Full record

SynthesisThe AAPS journal2022

Neutralization Activity of Anti-drug Antibodies Against a Biotherapeutic Can Be Predicted from a Comprehensive Pharmacokinetics, Pharmacodynamics, and Anti-drug Antibody Data Analysis.

Weifeng Xu, Brian Maas, Brad Roadcap, Aparna Swarup, Thomas Steinmetz, Linlin Luo, Marina Ichetovkin, Sandra Wood, Faye Vazvaei-Smith, Andrew Wen-Tseng Lee and 2 more

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in The AAPS journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

6 citing papers in PubMed, 6 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Article
  6. 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 1 institution in 1 country.

Weifeng XuPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA. Weifeng.xu2@merck.com.ORCID 0000-0001-7598-1489
Brian MaasPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Brad RoadcapPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Aparna SwarupPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Thomas SteinmetzPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Linlin LuoPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Marina IchetovkinPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Sandra WoodGlobal Regulatory Liaison, Vaccines and Infectious Disease, Merck & Co., Inc., Rahway, New Jersey, USA.
Faye Vazvaei-SmithPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Andrew Wen-Tseng LeeGlobal Clinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Kalpit VoraBiology Discovery, Infectious Disease/Vaccine, Merck & Co., Inc., Rahway, New Jersey, USA.
Roy HelmyPreclinical Development, Merck & Co., Inc., Rahway, New Jersey, USA.
Merck & Co., Inc., Rahway, NJ, USA (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Historically, a neutralization antibody (NAb) assay is considered critical in immunogenicity assessment of biologic therapeutics, even with low anti-drug antibody (ADA) positive rates. In 2019, FDA new guidelines issued on immunogenicity testing acknowledged the possibility of using "a highly sensitive PD marker or an appropriately designed PK assay or both that generate data that inform clinical activity" to replace a NAb assay. In the current manuscript, we present data for PK, PD, and ADA assays which collectively succeed to replace the standalone NAb assay. The data include a total LC/MS-based PK assay, a serum neutralization antibody (SNA) assay that essentially measures pharmacodynamically functional PK and can detect NAb activity in the presence of 1:1 ratio of drug, and a highly drug-tolerant ADA assay. In addition, a model-based meta-analysis (MBMA) demonstrated that the ability of SNA assay to detect NAb at 1:1 ratio of drug is sensitive enough to monitor clinically meaningful efficacy change, which is 50% reduction of SNA titer. Our strategy of preparing a holistic data package discussed here may provide a roadmap to the community for alternatives in assaying neutralizing activity of ADA.

Indexed as

Antibodies, NeutralizingBiological ProductsBiological AssayChromatography, LiquidData AnalysisAntibodies, NeutralizingBiological Productsbiologicsimmunogenicityneutralization antibody assayPK/PDregulatory guidance

Identifiers

PMID36167856
OpenAlexW4297210376

What OpenQuestion holds

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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.