Evidence map›Paper›PMID 33121236›Full record

ArticleHaematologica2021

Danicopan: an oral complement factor D inhibitor for paroxysmal nocturnal hemoglobinuria

Antonio M Risitano, Austin G Kulasekararaj, Jong Wook Lee, Jaroslaw P Maciejewski, Rosario Notaro, Robert Brodsky, Mingjun Huang, Michael Geffner, Peter Browett

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Haematologica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03053102 (A Phase 2 Open-Label Proof of Concept Study to Assess the Efficacy, Safety, and Pharmacokinetics of ACH-0144471 in Untreated Patients With Paroxysmal Nocturnal Hemoglobinuria), which is not on this map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
4.4field-weighted citation impact, top 4% 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.

NCT03053102 phase2completednot on this map

A Phase 2 Open-Label Proof of Concept Study to Assess the Efficacy, Safety, and Pharmacokinetics of ACH-0144471 in Untreated Patients With Paroxysmal Nocturnal Hemoglobinuria

TypeinterventionalSponsorAlexion Pharmaceuticals, Inc.Ran2017 to 2018Enrolled10ConditionsParoxysmal Nocturnal Hemoglobinuria (PNH)ArmsDanicopan
3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 106 citations in OpenAlex.

  1. Trial
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  13. Complement System Inhibitors in Nephrology: An Update-Narrative Review.International journal of molecular sciences · 2025
    Review
  14. Highlights on U.S. FDA-approved halogen-containing drugs in 2024.European journal of medicinal chemistry · 2025
    Review
  15. Article
  16. [Advances in complement inhibition therapy for paroxysmal nocturnal hemoglobinuria].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2025
    Review
  17. Review
  18. Paroxysmal Nocturnal Hemoglobinuria, Pathophysiology, Diagnostics, and Treatment.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2024
    Review
  19. Article
  20. 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

9 authors at 8 institutions in 6 countries.

Antonio M RisitanoFederico II University of Naples, Naples, Italy and AORN Moscati, Avellino. amrisita@unina.it.
Austin G KulasekararajKing's College Hospital-NHS Foundation Trust, NIHR/Wellcome King's Clinical Research Facility, London, UK and King's College London, London.
Jong Wook LeeSeoul St. Mary's Hospital, The Catholic University of Korea, Seoul.
Jaroslaw P MaciejewskiCleveland Clinic, Cleveland, OH.
Rosario NotaroCore Research Laboratory, Istituto per lo Studio, la Prevenzione e la Rete Oncologica (ISPRO), Firenze, Italy; Azienda Ospedaliera-Universitaria Careggi, Firenze.
Robert BrodskyJohns Hopkins University School of Medicine, Baltimore, MD.
Mingjun HuangAchillion, Inc., A Subsidiary of Alexion Pharmaceuticals, Inc., New Haven, CT, USA; Alexion Pharmaceuticals, New Haven CT.
Michael GeffnerAchillion Inc., A Subsidiary of Alexion Pharmaceuticals, Inc., Blue Bell, PA.
Peter BrowettUniversity of Auckland, Auckland.
Alexion Pharmaceuticals (United States) · USAzienda Ospedaliera S.Giuseppe Moscati · ITCleveland Clinic · USIstituto per lo Studio e la Prevenzione Oncologica · ITJohns Hopkins University · USKing's College Hospital NHS Foundation Trust · GBSeoul St. Mary's Hospital · KRUniversity of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Paroxysmal nocturnal hemoglobinuria (PNH) is characterised by complement-mediated intravascular hemolysis (IVH) due to absence of complement regulators CD55 and CD59 on affected erythrocytes. Danicopan is a first-in-class oral proximal, complement alternative pathway factor D (FD) inhibitor. Therapeutic FD inhibition was designed to control IVH and prevent C3-mediated extravascular hemolysis (EVH). In this open-label, phase 2, dose-finding trial, 10 untreated hemolytic PNH patients received danicopan monotherapy (100-200 mg thrice daily). Endpoints included change in lactate dehydrogenase (LDH) at day 28 (primary) and day 84 and hemoglobin. Safety, pharmacokinetics/pharmacodynamics, and patient-reported outcomes were measured. Ten patients reached the primary endpoint; two later discontinued: one for a serious adverse event (elevated aspartate aminotransferase/alanine aminotransferase coincident with breakthrough hemolysis, resolving without sequelae) and one for personal reasons unrelated to safety. Eight patients completed treatment. IVH was inhibited, demonstrated by mean decreased LDH (5.7 times upper limit of normal [ULN] at baseline vs 1.8 times ULN [day 28] and 2.2 times ULN [day 84]; both p.

Indexed as

Complement Factor DHemoglobinuria, ParoxysmalAntibodies, Monoclonal, HumanizedComplement C3Complement Inactivating AgentsComplement System ProteinsErythrocytesHemolysisHumansAntibodies, Monoclonal, HumanizedComplement C3Complement Factor DComplement Inactivating AgentsComplement System Proteins

Identifiers

PMID33121236
PMCPMC8634185
OpenAlexW3097686946

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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 OpenQuestion graph.