OncoSignal
Live from Open Targets Platform, fetched 2026-11-12 05:26 UTC. Every row links to its source record.

SERPING1 serpin family G member 1

ENSG00000149131 · protein coding · Open Targets profile

Serine protease inhibitor, which acrs as a regulator of the classical complement pathway (PubMed:10946292, PubMed:11527969, PubMed:3458172, PubMed:6416294). Forms a proteolytically inactive stoichiometric complex with the C1r or C1s proteases (PubMed:10946292, PubMed:3458172, PubMed:6416294). May also regulate blood coagulation, fibrinolysis and the generation of kinins (PubMed:8495195). Very efficient inhibitor of FXIIa. Inhibits chymotrypsin and kallikrein (PubMed:8495195). {ECO:0000269|PubMed:10946292, ECO:0000269|PubMed:11527969, ECO:0000269|PubMed:3458172, ECO:0000269|PubMed:6416294, ECO:0000269|PubMed:8495195}.

SERPING1: inherited and tumour-mutation evidence across 7 cancers

Each row is a cancer, strongest overall evidence first. The two dots show how strong the inherited (germline) and tumour-mutation (somatic) evidence is; the line between them is the gap.

Inherited (germline) variantsMutations in tumours (somatic)
00.250.50.751hepatocellular carcinomahepatocellular carcinomalung adenocarcinomalung adenocarcinomapancreatic neoplasmpancreatic neoplasmfamilial pancreatic carcinomafamilial pancreatic carcinomaNF2-related schwannomatosisNF2-related schwannomatosislymphomalymphomauveal melanomauveal melanoma

Scores run from 0 (no evidence) to 1 (strongest). A missing dot at 0 means Open Targets holds no evidence of that kind. Source: Open Targets Platform, fetched live.

Tractability

Antibody
UniProt loc high conf, GO CC high conf, UniProt SigP or TMHMM
PROTAC
Half-life Data
Other modalities
Approved Drug

gnomAD loss of function constraint: o/e 0.1466200053691864 (upper bound 0.3082900047302246). Low values mean loss of function is poorly tolerated, a safety flag for inhibition.

Who runs trials of these drugs

Principal investigators and study chairs on 12 registry trials, updated in the last three years, of the most advanced drugs against SERPING1 (conestat alfa), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.

5 of 11 trials of drugs against SERPING1 have sites only in United States

Registry trials of conestat alfa updated in the last three years, counted by the country group of their listed sites. A trial with sites in several groups counts in each; 10 of 11 have all sites in one country.

Sites only in this groupSites here and elsewhere
United StatesUnited States: 5 trials with sites only hereUnited States: 1 trials with sites here and elsewhere6EuropeEurope: 5 trials with sites only hereEurope: 1 trials with sites here and elsewhere6OtherOther: 0 trials with sites only hereOther: 1 trials with sites here and elsewhere1

Site counts are not patients per country, and trials registered only outside ClinicalTrials.gov are not covered. Where sites are is a fact about the record, not a judgement of its quality. Europe is the EU and EEA, the UK and Switzerland. 1 trials list no sites and are left out. Source: ClinicalTrials.gov, fetched live.

8 trials of drugs against SERPING1 were stopped early; 1 give no reason

Terminated, withdrawn and suspended interventional trials of conestat alfa, newest update first, live from ClinicalTrials.gov. Each reason is quoted exactly as the registry gives it; we do not sort reasons into safety, efficacy or business. Dates are the last registry update. Showing the 8 most recent of 8.

  • terminated · 2024-04-03 · Pharming Technologies B.V. · conestat alfa or placebo
    “Lower than expected study enrolment rate. New strategic considerations.”
  • terminated · 2022-07-29 · CSL Behring · matched by the registry's drug synonyms
    “The study was terminated early due to futility of enrolment and not for safety reasons.”
  • withdrawn · 2022-02-04 · AO GENERIUM · matched by the registry's drug synonyms
    “Company pipeline revision”
  • terminated · 2021-11-09 · University Hospital, Basel, Switzerland · Conestat alfa
    “Aim to enroll 120 patients deemed not sufficient to show a difference in the primary outcome measure. Standard of care treatment recently changed in Switzerland adding further heterogeneity to trial population when including future participants.”
  • terminated · 2021-01-19 · TSI, LLC · matched by the registry's drug synonyms
    No reason given
  • terminated · 2020-06-24 · T. van der Poll · matched by the registry's drug synonyms
    “Interim analysis showed no differences between groups”
  • terminated · 2015-02-04 · UMC Utrecht · matched by the registry's drug synonyms
    “Futility and limited feasibility”
  • withdrawn · 2012-02-17 · Pharming Technologies B.V. · matched by the registry's drug synonyms
    “Recent improvements in clinical practice have reduced the apparent incidence of AMR in renal transplantation.”
Paediatric incentives and obligations for SERPING1's drugs

For conestat alfa: what EMA and FDA publish about paediatric plans, orphan status and pediatric approvals, and how many registered studies take children. Each line is a yes, no or not published fact from the record linked under it; none of it is a forecast.

Rare pediatric disease voucher. FDA, content current as of 29 Apr 2026: “As of February 3, 2026, enactment of the Consolidated Appropriations Act, 2026, the rare pediatric disease PRV program will sunset after September 30, 2029. FDA may not award any PRVs under this program after September 30, 2029.” Voucher sale prices are not shown here; they appear only as company-reported news. FDA: Rare Pediatric Disease Designation and Priority Review Voucher Programs

All 1 drugs and clinical candidates as a table

Each drug, stage and indication links to its Open Targets record, where the trials and approvals behind it are listed. Salt forms (for example a mesylate) are listed as Open Targets records them, as separate entries.

DrugTypeHighest stageIndicationsSource records
CONESTAT ALFAProteinphase 4hereditary angioedema, erectile dysfunction, angioedema, inflammation, subarachnoid hemorrhage, ischemia reperfusion injury, transverse myelitis, optic neuritis, +1 moreOpen Targets · ChEMBL