Evidence map›Paper›PMID 23054969›Full record

Trial reportThe AAPS journal2013

Stratification of antibody-positive subjects by antibody level reveals an impact of immunogenicity on pharmacokinetics.

Lei Zhou, Sarah A Hoofring, Yu Wu, Thuy Vu, Peiming Ma, Steven J Swanson, Narendra Chirmule, Marta Starcevic

Open access · bronzeAbstract readClinical Trial, Phase II
In one paragraph

Trial report in The AAPS journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

28 citing papers in PubMed, 53 citations in OpenAlex.

  1. Trial
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  13. Efficacy and Safety of LY2963016 Insulin Glargine in Chinese Patients with Type 1 Diabetes Previously Treated with Insulin Glargine (LantusDiabetes therapy : research, treatment and education of diabetes and related disorders · 2022
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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 at 1 institution in 1 country.

Lei ZhouBiostatistics-Medical Sciences, Amgen Inc., Thousand Oaks, CA 91320, USA.
Sarah A Hoofring
Yu Wu
Thuy Vu
Peiming Ma
Steven J Swanson
Narendra Chirmule
Marta Starcevic
Amgen (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The availability of highly sensitive immunoassays enables the detection of antidrug antibody (ADA) responses of various concentrations and affinities. The analysis of the impact of antibody status on drug pharmacokinetics (PK) is confounded by the presence of low-affinity or low-concentration antibody responses within the dataset. In a phase 2 clinical trial, a large proportion of subjects (45%) developed ADA following weekly dosing with AMG 317, a fully human monoclonal antibody therapeutic. The antibody responses displayed a wide range of relative concentrations (30 ng/mL to >13 μg/mL) and peaked at various times during the study. To evaluate the impact of immunogenicity on PK, AMG 317 concentration data were analyzed following stratification by dose group, time point, antibody status (positive or negative), and antibody level (relative concentration). With dose group as a stratifying variable, a moderate reduction in AMG 317 levels (<50%) was observed in antibody-positive subjects when compared to antibody-negative subjects, but the difference was not statistically significant in all dose groups. The most significant reduction in AMG 317 levels was revealed when antibody data was stratified by both time point and antibody level. In general, high ADA concentrations (>500 ng/mL) and later time points (week 12) were associated with significantly (up to 97%) lower trough AMG 317 concentrations. The use of quasi-quantitative antibody data and appropriate statistical methods was critical for the most comprehensive evaluation of the impact of immunogenicity on PK.

Indexed as

AntibodiesAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedHumansPatient SatisfactionAMG 317AntibodiesAntibodies, MonoclonalAntibodies, Monoclonal, Humanized

Identifiers

PMID23054969
PMCPMC3535100
OpenAlexW2033536775

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.