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Disease · MONDO_0001676

erythropoietic protoporphyria

6 sourcesdiseases-2026-09-18-0.1.0

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ConductScience Library. erythropoietic protoporphyria. Diseases, record MONDO_0001676. Release diseases-2026-09-18-0.1.0, 18 Sept 2026. https://conductscience.org/library/diseases/MONDO_0001676

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Disease

Names and IDs as Open Targets gives them. Its IDs in MeSH, Orphanet, the Disease Ontology and the NCI Thesaurus are those Open Targets states for it.

Name
erythropoietic protoporphyria
Open Targets
Open Targets ID
MONDO_0001676
Open Targets
Other names
EPP (erythropoietic protoporphyria porphyria)
Open Targets
Disease Ontology
DOID:13270
Disease Ontology
MeSH
D046351
MeSH
Orphanet
ORPHA:659681
Orphanet
Highest stage of its drugs
Approval, for 1 of its 11 drugs, from DailyMed, EMA Human Drugs and FDA
Open Targets

Drugs11

The drugs Open Targets' clinical reports study for the disease, the highest stage first, then the most trial reports. The stage is Open Targets', the highest any of its sources reports for the pair, and each row names the sources that report it.

DrugChEMBL IDTypeOpen Targets' stageStage reported byReportsOf them trialsTrials shown hereSource
AFAMELANOTIDECHEMBL441738ProteinApprovalDailyMed, EMA Human Drugs and FDA966Drugs and targets
BITOPERTINCHEMBL1171829Small moleculePhase 3ClinicalTrials.gov555Drugs and targets
DERSIMELAGONCHEMBL4802160Small moleculePhase 3ClinicalTrials.gov and TTD644Drugs and targets
COLESTIPOL HYDROCHLORIDECHEMBL1201474Phase 2/3ClinicalTrials.gov111Drugs and targets
CIMETIDINECHEMBL30Small moleculePhase 2ClinicalTrials.gov111Drugs and targets
FERRIC CARBOXYMALTOSECHEMBL2108597UnknownClinicalTrials.gov110Drugs and targets
FERRIC OXYHYDROXIDECHEMBL4802224Small moleculeUnknownClinicalTrials.gov110Drugs and targets
FERROUS SULFATECHEMBL1200830Small moleculeUnknownClinicalTrials.gov110Drugs and targets
IRON ISOMALTOSIDE 1000CHEMBL4298046UnknownClinicalTrials.gov110Drugs and targets
ISONIAZIDCHEMBL64Small moleculeUnknownClinicalTrials.gov111Drugs and targets

1 to 10 of 11

See all 11 drugs

Targets3

The targets ChEMBL's mechanism records give for the disease's drugs, through Open Targets, the most drugs first. A mechanism record says what a drug acts on, not that the target causes the disease.

TargetProteinIts drugs that act on itMechanismsHighest stage of those drugsGene in GenesSource
MC1RMelanocyte-stimulating hormone receptor2Melanocortin receptor 1 agonistApprovalhttps://conductscience.org/library/genes/4157Drugs and targets
HRH2Histamine H2 receptor1Histamine H2 receptor antagonistPhase 2https://conductscience.org/library/genes/3274Drugs and targets
SLC6A9Sodium- and chloride-dependent glycine transporter 11Glycine transporter 1 inhibitorPhase 3https://conductscience.org/library/genes/6536Drugs and targets

Trials18

Trials an Open Targets clinical report links to the disease, posted results first, then the largest. A trial is shown when the release's checks confirm its link to the disease and Drugs and targets shows its link to one of the disease's drugs. 1 more is not shown, since the checks do not confirm it.

TrialTitlePhaseParticipantsResults first postedConditionsDrugsLinked bySource
NCT04402489Study to Evaluate Efficacy, Safety, and Tolerability of MT-7117 in Subjects With Erythropoietic Protoporphyria or X-Linked ProtoporphyriaPhase 31842025-03-21EPP, XLPDERSIMELAGONIts record names the diseaseClinicalTrials.gov
NCT03520036Study to Evaluate Efficacy, Safety, and Tolerability of MT-7117 in Subjects With Erythropoietic ProtoporphyriaPhase 21022023-01-20Erythropoietic Protoporphyria (EPP)DERSIMELAGONIts record names the diseaseClinicalTrials.gov
NCT04053270Multicentre Phase III Erythropoietic Protoporphyria StudyPhase 31002019-10-10Erythropoietic ProtoporphyriaAFAMELANOTIDEIts record names the diseaseClinicalTrials.gov
NCT01605136Phase III Confirmatory Study in Erythropoietic ProtoporphyriaPhase 3932019-08-26Erythropoietic ProtoporphyriaAFAMELANOTIDEIts record names the diseaseClinicalTrials.gov
NCT01097044Phase II Confirmatory Study in Erythropoietic Protoporphyria (EPP)Phase 2772019-09-17Erythropoietic ProtoporphyriaAFAMELANOTIDEIts record names the diseaseClinicalTrials.gov
NCT05308472Study of Bitopertin to Evaluate the Safety, Tolerability, Efficacy, and PPIX Concentrations in Participants With EPPPhase 2752026-01-08Erythropoietic ProtoporphyriaBITOPERTINIts record names the diseaseClinicalTrials.gov
NCT00979745Phase III Confirmatory Study in Erythropoietic Protoporphyria (EPP)Phase 3742021-10-12Erythropoietic ProtoporphyriaAFAMELANOTIDEIts record names the diseaseClinicalTrials.gov
NCT04578496A Safety Extension Study in Patients With Erythropoietic Protoporphyria (EPP)Phase 3162020-11-02Erythropoietic ProtoporphyriaAFAMELANOTIDEIts record names the diseaseClinicalTrials.gov
NCT01550705Effect of Isoniazid on Protoporphyrin Levels in Erythropoietic ProtoporphyriaNot applicable112017-01-16Erythropoietic Protoporphyria (EPP), X Linked Erythropoietic ProtoporphyriaISONIAZIDIts record names the diseaseClinicalTrials.gov
NCT01422915Sorbent Therapy of the Cutaneous PorphyriasPhase 2/342017-04-25Erythropoietic ProtoporphyriaCOLESTIPOL HYDROCHLORIDEIts record names the diseaseClinicalTrials.gov

1 to 10 of 18

See all 18 trials

Comparisons in its trials4

Comparisons Trial comparisons calculated in the trials shown here, most participants first. A comparison in one of these trials does not always compare a treatment for the disease, so read the two groups.

ComparisonGroup 1, with the outcomeGroup 2, with the outcomeParticipantsTrialSource
Afamelanotide vs Placebo: serious adverse events3 of 1003 of 100200NCT04053270Trial comparisons
Afamelanotide vs Placebo: serious adverse events3 of 482 of 4593NCT01605136Trial comparisons
Afamelanotide vs Placebo: serious adverse events2 of 392 of 3877NCT01097044Trial comparisons
Experimental: Afamelanotide vs Placebo: serious adverse events0 of 380 of 3674NCT00979745Trial comparisons

Papers from its trials4

The papers the trials shown here list on ClinicalTrials.gov as their results (RESULT) or as drawn from them (DERIVED), results first, newest first.

PMIDListed asTrials listing itSource
37043653RESULT1PubMed
9521433RESULT1PubMed
39887900DERIVED2PubMed
26132941DERIVED2PubMed

Data dates

The date of each source this release read.

Open Targets
2026-09-18
Open Targets
Drug links and their checks, from Drugs and targets
2026-09-18
Drugs and targets
ClinicalTrials.gov, from Trials
2026-11-12
Trials
Comparisons, from Trial comparisons
2026-03-23
Trial comparisons
PubMed, for the checks
2026-11-06
PubMed
MeSH, for the checks
2026-11-10
MeSH

Sources 6

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ChEMBL, through Open TargetsCC BY-SA 3.0
  • ClinicalTrials.govNo license stated
  • NLM's MeSHNLM's terms
  • Open TargetsCC0 1.0
  • PubMedNLM's terms
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ChEMBL, through Open TargetsCC BY-SA 3.0, for the parts from ChEMBL. Read on 8 Nov 2026 at https://platform-docs.opentargets.org/licence
  • ClinicalTrials.govnone stated
  • NLM's MeSHNLM's
  • Open TargetsCC0 1.0. Open Targets asks that users cite its latest paper: Buniello et al. 2025, Open Targets Platform: facilitating therapeutic hypotheses building in drug discovery, Nucleic Acids Research 53(D1):D1467, PMID 39657122. Read on 8 Nov 2026 at https://platform-docs.opentargets.org/licence
  • PubMedNLM's terms

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this disease from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/diseases/v1/MONDO_0001676

GET https://conductscience.org/api/diseases/v1/MONDO_0001676/drugs