Evidence map›Paper›PMID 33464651›Full record

ArticleAmerican journal of hematology2020

C3 inhibition with pegcetacoplan in subjects with paroxysmal nocturnal hemoglobinuria treated with eculizumab.

Carlos de Castro, Federico Grossi, Ilene Ceil Weitz, Jaroslaw Maciejewski, Vivek Sharma, Eloy Roman, Robert A Brodsky, Lisa Tan, Carl Di Casoli, Delphine El Mehdi and 2 more

Open access · hybridAbstract readClinical Trial, Phase IMulticenter Study
In one paragraph

Article in American journal of hematology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 3% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.

  1. Pooled it
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  7. [How I diagnose and treat paroxysmal nocturnal hemoglobinuria].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2026
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  12. [Advances in complement inhibition therapy for paroxysmal nocturnal hemoglobinuria].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2025
    Review
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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

12 authors at 8 institutions in 2 countries.

Carlos de CastroDuke University School of Medicine, Durham, North Carolina, USA.
Federico GrossiApellis Pharmaceuticals, Waltham, Massachusetts, USA.
Ilene Ceil WeitzKeck School of Medicine of USC, Los Angeles, California, USA.
Jaroslaw MaciejewskiTranslational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, Ohio, USA.
Vivek SharmaUniversity of Louisville, Louisville, Kentucky, USA.
Eloy RomanLakes Research, Miami Lakes, Florida, USA.
Robert A BrodskyJohns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Lisa TanLisa Tan Pharma Consulting Ltd, Cambridge, UK.
Carl Di CasoliApellis Pharmaceuticals, Waltham, Massachusetts, USA.
Delphine El MehdiApellis Pharmaceuticals, Waltham, Massachusetts, USA.
Pascal DeschateletsApellis Pharmaceuticals, Waltham, Massachusetts, USA.
Cedric FrancoisApellis Pharmaceuticals, Waltham, Massachusetts, USA.
Apellis Pharmaceuticals (United States) · USBridge Pharma (United States) · USDuke University · USFlorida Gateway College · USJohns Hopkins Medicine · USKeck Hospital of USC · USTranslational Research in Oncology · FRUniversity of Louisville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired, life-threatening hematologic disease characterized by chronic complement-mediated hemolysis and thrombosis. Despite treatment with eculizumab, a C5 inhibitor, 72% of individuals remain anemic. Pegcetacoplan (APL-2), a PEGylated C3 inhibitor, has the potential to provide more complete hemolysis control in patients with PNH. This open-label, phase Ib study was designed to assess the safety, tolerability, and pharmacokinetics of pegcetacoplan in subjects with PNH who remained anemic during treatment with eculizumab. Pharmacodynamic endpoints were also assessed as an exploratory objective of this study. Data are presented for six subjects in cohort 4 who received treatment for up to 2 years. In total, 427 treatment-emergent adverse events (TEAEs) were reported, 68 of which were possibly related to the study drug. Eight serious TEAEs occurred in two subjects; three of these events were considered possibly related to the study drug. Pegcetacoplan pharmacokinetic concentrations accumulated with repeated dosing, and steady state was reached at approximately 6-8 weeks. Lactate dehydrogenase levels were well controlled by eculizumab at baseline. Pegcetacoplan increased hemoglobin levels and decreased both reticulocyte count and total bilirubin in all six subjects. Improvements were observed in Functional Assessment of Chronic Illness Therapy Fatigue scores. Two subjects discontinued for reasons unrelated to pegcetacoplan. All four subjects who completed the study transitioned to pegcetacoplan monotherapy following eculizumab discontinuation and avoided transfusions. In this small study, pegcetacoplan therapy was generally well-tolerated, and resulted in an improved hematological response by achieving broad hemolysis control, enabling eculizumab discontinuation.

Indexed as

AdultAnemia, HemolyticAntibodies, Monoclonal, HumanizedBilirubinChemical and Drug Induced Liver InjuryComplement C3Complement C5Drug SubstitutionFemaleFeverHemoglobinsHemoglobinuria, ParoxysmalHemolysisHumansL-Lactate DehydrogenaseMaleAntibodies, Monoclonal, HumanizedBilirubinComplement C3Complement C5eculizumabHemoglobinsL-Lactate Dehydrogenase

Identifiers

PMID33464651
PMCPMC7693064
OpenAlexW3049300697

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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 Socratic graph.