Drugs / Eflornithine
last change Jun 2026 re-read 9 days ago

Eflornithine

Small molecule targets ODC1 via inhibition

Developed for
neuroblastoma · human African trypanosomiasis · Ewing sarcoma · osteosarcoma · prostate cancer · classic familial adenomatous polyposis · embryonal tumor with multilayered rosettes · hypertrichosis
+33 more · IDH-wildtype glioblastoma · precancerous condition · adenomatous colon polyp · anaplastic astrocytoma · anaplastic oligodendroglioma · astrocytoma (excluding glioblastoma) · astrocytoma, IDH-mutant, grade 3 · astrocytoma, IDH-mutant, grade 4 · atypical teratoid rhabdoid tumor · benign neoplasm of skin · cervical cancer · classic or attenuated familial adenomatous polyposis · colorectal cancer · colorectal neoplasm · cutaneous melanoma · diffuse astrocytoma · diffuse intrinsic pontine glioma · disorder of pilosebaceous unit · dysplasia of cervix · ependymoblastoma · esophageal cancer · hormone receptor-positive breast cancer · malignant glioma · medulloblastoma · medulloepithelioma · Pseudofolliculitis barbae · rhabdoid tumor · skin cancer · skin carcinoma · urinary bladder cancer · gastric cancer · gastric intestinal metaplasia · hyperpigmentation of the skin
Investigated by
National Cancer Institute (NCI) · Giselle Sholler · Cancer Prevention Pharmaceuticals, Inc. · K C Pharmaceuticals Inc. · Beat NB Cancer Foundation · Epicentre
+39 more · University of Arizona · Aminex Therapeutics, Inc. · Because of Ezra · Doctors Without Borders · Drugs for Neglected Diseases · Mayo Clinic · Milton S. Hershey Medical Center · Orbus Therapeutics, Inc. · Swiss Tropical & Public Health Institute · USWM, LLC · Allergan · Bispebjerg Hospital · Children's Oncology Group · Embassy of France in Uganda · Hordinsky, Maria K., MD · Johns Hopkins University · Khyber Teaching Hospital · M.D. Anderson Cancer Center · Medecins Sans Frontieres, Netherlands · Ministry of Public Health, Democratic Republic of the Congo · Montefiore Medical Center · National Sleeping Sickness Control Program, Uganda · New Approaches to Neuroblastoma Therapy Consortium · PNLTHA-DRC; · PNLTHA-RoC · Panbela Therapeutics, Inc. · Penn State University · Prostate Cancer Foundation · SWOG Cancer Research Network · Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins · Team Parker for Life · Thomas E. Ahlering · USWM, LLC (dba US WorldMeds) · United States Department of Defense · University of Alabama at Birmingham · University of Hawaii · University of Michigan Rogel Cancer Center · University of Wisconsin, Madison · World Health Organization

Regulatory milestones approvals, filings & regulatory actions · 5 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed neuroblastoma 3 milestones
Filed EU (EMA) — neuroblastoma 2025-01-07

“Norgine today announced that it completed its marketing authorisation application filing to European Medicines Agency (EMA) for eflornithine in high-risk neuroblastoma (HRNB).” norgine.com ↗

Filed Other — neuroblastoma 2024-04-10

“marketing authorisation application submissions on 10 April 2024, seeking approval for eflornithine in high-risk neuroblastoma (HRNB), via Project Orbis in Australia, Switzerland” norgine.com ↗

“marketing authorisation application submissions on 10 April 2024, seeking approval for eflornithine in high-risk neuroblastoma (HRNB), via Project Orbis in Australia” norgine.com ↗

Filed UK (MHRA) — neuroblastoma 2024-04-10

“marketing authorisation application submissions on 10 April 2024, seeking approval for eflornithine in high-risk neuroblastoma (HRNB), via Project Orbis in Australia,...” norgine.com ↗

Approved Indication not stated 2 milestones
Approved EU (EMA) Vaniqa — 2001-03-19 europa.eu ↗
Approved US (FDA) ORNIDYL — 1990-11-28 fda.gov ↗

Trials 38

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT05717153 Oct 2023 → Jan 2027 expected malignant glioma Mayo Clinic Recruiting No outcome recorded
Phase 13 trials
Phase 1 NCT05879367 Jul 2023 → Jun 2026 overdue IDH-wildtype glioblastoma, astrocytoma (excluding glioblastoma) Orbus Therapeutics, Inc. Recruiting No outcome recorded
Phase 1 NCT02030964 Jan 2014 → Dec 2023 neuroblastoma New Approaches to Neuroblastoma Therapy Consortium Completed No outcome recorded
Phase 1 NCT01059071 Feb 2010 → Oct 2014 neuroblastoma Giselle Sholler Completed No outcome recorded
Phase 1/25 trials
Phase 1/2 NCT07468136 Jun 2026 → Oct 2030 expected IDH-wildtype glioblastoma, anaplastic oligodendroglioma, astrocytoma, IDH-mutant, grade 3, astrocytoma, IDH-mutant, grade 4 +1 Mayo Clinic Recruiting No outcome recorded
Phase 1/2 NCT06465199 May 2026 → May 2033 expected Ewing sarcoma, atypical teratoid rhabdoid tumor, diffuse intrinsic pontine glioma, embryonal tumor with multilayered rosettes +2 Milton S. Hershey Medical Center Recruiting No outcome recorded
Phase 1/2 NCT07287917 Jan 2026 → Feb 2028 expected cutaneous melanoma, hormone receptor-positive breast cancer Aminex Therapeutics, Inc. Recruiting No outcome recorded
Phase 1/2 NCT06892678 Apr 2025 → Apr 2030 expected Ewing sarcoma, osteosarcoma Montefiore Medical Center Recruiting No outcome recorded
Phase 1/2 NCT02139397 Jun 2014 → Jan 2024 neuroblastoma Giselle Sholler Completed No outcome recorded
Phase 214 trials · 1 met primary · 2 missed
Phase 2 NCT07321912 Jun 2026 → Jun 2031 expected Ewing sarcoma, osteosarcoma Milton S. Hershey Medical Center Recruiting No outcome recorded
Phase 2 NCT06059118 Oct 2023 → Jan 2027 expected prostate cancer Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins Recruiting No outcome recorded
Phase 2 NCT04301843 Sep 2020 → Oct 2028 expected neuroblastoma Giselle Sholler Active not recruiting No outcome recorded
Phase 2 NCT03794349 Jul 2019 → Mar 2025 overdue neuroblastoma Children's Oncology Group Active not recruiting No outcome recorded
Phase 2 NCT02395666 Mar 2015 → Mar 2018 neuroblastoma Giselle Sholler Completed Met primary
Phase 2 NCT00983580 Aug 2009 → Oct 2016 adenomatous colon polyp National Cancer Institute (NCI) Completed Missed primary
Phase 2 NCT00601640 Jan 2007 → Feb 2010 benign neoplasm of skin University of Arizona Completed No outcome recorded
Phase 2 NCT00033371 Dec 2001 → Feb 2009 classic or attenuated familial adenomatous polyposis, colorectal cancer National Cancer Institute (NCI) Completed Missed primary
Phase 2 NCT00086736 Nov 2001 → Nov 2003 prostate cancer University of Alabama at Birmingham Completed No outcome recorded
Phase 2 NCT00021294 May 2001 → Jun 2002 precancerous condition, skin cancer University of Arizona Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT00489658 Oct 2002 → ? human African trypanosomiasis Epicentre Terminated No outcome recorded Stop: Enrollment
Phase 39 trials · 1 met primary · 1 missed
Phase 3 NCT02796261 Jul 2016 → Jun 2023 anaplastic astrocytoma Orbus Therapeutics, Inc. Unknown No outcome recorded
Phase 3 NCT01483144 Oct 2013 → Nov 2018 classic familial adenomatous polyposis Cancer Prevention Pharmaceuticals, Inc. Completed Missed primary
Phase 3 NCT01349881 Aug 2013 → Sep 2027 expected colorectal neoplasm SWOG Cancer Research Network Active not recruiting No outcome recorded
Phase 3 NCT01245816 Mar 2011 → May 2013 classic familial adenomatous polyposis Cancer Prevention Pharmaceuticals, Inc. Withdrawn No outcome recorded
Phase 3 NCT00330148 Mar 2001 → Jun 2004 human African trypanosomiasis Epicentre Terminated No outcome recorded
Phase 3 NCT00003814 Feb 1999 → May 2007 urinary bladder cancer National Cancer Institute (NCI) Completed No outcome recorded
Phase 3 NCT00118365 Jul 1998 → Aug 2008 precancerous condition National Cancer Institute (NCI) Completed No outcome recorded
Phase 3 NCT00005884 ? → Dec 2000 skin carcinoma University of Wisconsin, Madison Completed No outcome recorded
Phase 3 NCT00146627 ? → Jun 2008 human African trypanosomiasis Drugs for Neglected Diseases Completed Met primary
Phase 44 trials
Phase 4 NCT06976424 Jul → Dec 2025 overdue disorder of pilosebaceous unit Khyber Teaching Hospital Recruiting No outcome recorded
Phase 4 NCT01817894 Jan 2012 → Oct 2013 hypertrichosis Bispebjerg Hospital Completed No outcome recorded
Phase 4 NCT00906880 Apr 2009 → Sep 2010 human African trypanosomiasis Drugs for Neglected Diseases Completed No outcome recorded
Phase 4 NCT00152048 Nov 2004 → Oct 2005 hypertrichosis Allergan Completed No outcome recorded
Phase not stated1 trial
— NCT03581240 — embryonal tumor with multilayered rosettes, ependymoblastoma, medulloblastoma, medulloepithelioma +2 Giselle Sholler Available No outcome recorded
Comparator or background therapy6 trials
Phase 2 NCT06957834 Comparator Jun 2023 → Jul 2024 hyperpigmentation of the skin National Skin Centre Completed No outcome recorded
Phase 2 NCT04091022 Comparator Jan 2021 → Dec 2025 skin cancer University of Alabama at Birmingham Completed No outcome recorded
Phase 2 NCT02794428 Comparator Sep 2016 → Dec 2022 gastric cancer, gastric intestinal metaplasia Vanderbilt-Ingram Cancer Center Completed No outcome recorded
Phase 2 NCT02559778 Comparator Sep 2015 → Sep 2030 expected neuroblastoma Giselle Sholler Recruiting No outcome recorded
Phase 2/3 NCT01685827 Comparator Oct 2012 → Nov 2016 human African trypanosomiasis Drugs for Neglected Diseases Completed No outcome recorded

News releases announcing trial results or a regulatory action · 10

DateIssuerRelease
2025-07-31 Norgine Regulatory FOR AUSTRALIAN MEDIA ONLYNorgine welcomes PBS listing in Australia of IFINWIL® (eflornithine) for patients with high-risk neuroblastoma (HRNB) norgine.com ↗
Eflornithine is now reimbursed by the government under Australia’s Pharmaceutical Benefits Scheme (PBS).
2025-07-08 Norgine Regulatory Swissmedic approves IFINWIL® (eflornithine) for children diagnosed with high-risk neuroblastoma (HRNB) norgine.com ↗
Norgine, a leading European specialty pharmaceutical company, is pleased to announce that Swissmedic has approved the registration of IFINWIL® (eflornithine) as monotherapy for the treatment of paediatric patients from one year with high-risk neuroblastoma (HRNB)1.
2025-04-17 Norgine Regulatory Norgine welcomes TGA registration in Australia of IFINWIL® (eflornithine) for adults and children diagnosed with high-risk neuroblastoma (HRNB)1 norgine.com ↗
Norgine is pleased to announce that the Australian Therapeutic Goods Administration (TGA) has approved the registration of IFINWIL® (eflornithine) for the treatment of adults and paediatric patients with high-risk neuroblastoma (HRNB), who have responded to prior multiagent, multimodality therapy.
2025-01-07 Norgine Regulatory Norgine submits Marketing Authorisation Application to the European Medicines Agency for eflornithine (difluoromethylornithine [DFMO]) in high-risk neuroblastoma norgine.com ↗
Norgine today announced that it completed its marketing authorisation application filing to European Medicines Agency (EMA) for eflornithine in high-risk neuroblastoma (HRNB).
2024-04-15 Norgine Regulatory Norgine B.V. submits Marketing Authorisation Application via Project Orbis for eflornithine (difluoromethylornithine [DFMO]) in high-risk neuroblastoma norgine.com ↗
Norgine B.V. today announced its first marketing authorisation application submissions on 10 April 2024, seeking approval for eflornithine in high-risk neuroblastoma (HRNB), via Project Orbis in Australia, Switzerland and the United Kingdom.
2023-12-14 USWM, LLC (dba US WorldMeds) Regulatory US WorldMeds Announces FDA Approval of IWILFIN™ (eflornithine) to Strengthen Fight Against Aggressive Childhood Cancer usworldmeds.com ↗
USWM, LLC (US WorldMeds) today announced that the U.S. Food and Drug Administration (FDA) has approved IWILFIN™ (eflornithine) 192 mg tablets, a groundbreaking oral maintenance therapy for high-risk neuroblastoma.
2017-11-03 Drugs for Neglected Diseases Results Phase II/III studies show high efficacy and safety of fexinidazole, the first oral treatment for sleeping sickness | DNDi dndi.org ↗
Treatment success rates of 91.2% were measured for fexinidazole, with 97.6% for NECT, 18 months after the end of treatment.
2013-07-10 Drugs for Neglected Diseases Regulatory Three Neglected-Disease Treatments Newly Added to WHO Essential Medicines List for Paediatric Use | DNDi dndi.org ↗
Nifurtimox-eflornithine combination therapy (NECT) was added to the EMLc for the treatment of late-stage sleeping sickness (human African trypanosomiasis) in children.
2009-05-14 Drugs for Neglected Diseases Regulatory NECT Added to WHO Essential Medicines List as Combination Treatment Against Sleeping Sickness | DNDi dndi.org ↗
According to the WHO, NECT can now be used in patients and will provide an opportunity to improve the management of sleeping sickness cases.
2008-12-08 Drugs for Neglected Diseases Results Positive Results for Improved Treatment Against Sleeping Sickness | DNDi dndi.org ↗
Pivotal Phase III clinical trial results conclusively show that Nifurtimox-Eflornithine Combination Therapy (NECT) is well tolerated and effective against the advanced stage of T. b. gambiense sleeping sickness, a fatal disease that threatens 60 million people in sub-Saharan Africa.

All press releases naming this drug 11 releases

DateIssuerRelease

Evidence & citations 24 cited values

Every value below carries the sentence it was read from. 46 sources stand behind the page.

FieldValueCited text
Known as eflornithine “Solaraze-topical diclofenac 3% and Vaniqa-topical eflornithine hydrochloride Cream, 13.9% applied to bilateral arms for a period of 9 months” NCT04091022 ↗
33

“co-administration of nifurtimox (10 days, 15 mg/kg/day, p.o. TID) and eflornithine (7 days, 400 mg/kg/day, i.v. BID)” NCT00906880 ↗

NCT00005884 ↗

NCT00983580 ↗

NCT04403282 ↗

NCT00118365 ↗

NCT01245816 ↗

NCT01817894 ↗

NCT01349881 ↗

NCT04301843 ↗

NCT00006079 ↗

Show 23 more sources

Known as alpha-difluoromethylornithine “A clinical study of the efficacy of oral alpha-difluoromethylornithine (eflornithine or DFMO) in male and female subjects ages 30-60 with gastric premalignant lesions in two...” NCT02794428 ↗
Known as Alpha-Difluromethylornithine “A Randomized Double-Blind Study of Alpha-Difluromethylornithine (DFMO) Versus Placebo in Patients With Cervical Intraepithelial Neoplasia (CIN) Grade 2-3” NCT00006079 ↗
Known as DFMO “Determine whether oral eflornithine (DFMO) given in this study will cause significant reduction of the Ki67 labelling index in subjects with intestinal type Barrett's esophagus...” NCT00003076 ↗
13

“A clinical study of the efficacy of oral alpha-difluoromethylornithine (eflornithine or DFMO) in male and female subjects ages 30-60 with gastric premalignant lesions in two...” NCT02794428 ↗

“A Randomized Double-Blind Study of Alpha-Difluromethylornithine (DFMO) Versus Placebo in Patients With Cervical Intraepithelial Neoplasia (CIN) Grade 2-3” NCT00006079 ↗

“Patients receive oral eflornithine (DFMO) daily.” NCT00005884 ↗

“Eflornithine (DFMO)” NCT06465199 ↗

“eflornithine (DFMO)” NCT00021294 ↗

NCT02395666 ↗

NCT02030964 ↗

NCT01059071 ↗

NCT02139397 ↗

NCT06892678 ↗

Show 3 more sources

Known as Dfmo hcl ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as Difluoromethylornithine “Topical Difluoromethylornithine (DFMO) With and Without a Topical Corticosteroid Cream (Triamcinolone 0.1%)” NCT00021294 ↗
Known as Difluoromethylornithine (DFMO) “Difluoromethylornithine (DFMO)” NCT00006101 ↗
Known as Difluromethylornithine ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as eflornithine (Ornidyl) “eflornithine (Ornidyl)” NCT00906880 ↗
Known as Eflornithine HCL “Eflornithine HCL ointment” NCT00601640 ↗
Known as eflornithine hydrochloride “Solaraze-topical diclofenac 3% and Vaniqa-topical eflornithine hydrochloride Cream, 13.9% applied to bilateral arms for a period of 9 months” NCT04091022 ↗
3

“topical eflornithine hydrochloride ointment” NCT00601640 ↗

NCT00152048 ↗

NCT03794349 ↗

Known as Eflornithine hydrochloride monohydrate ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as Eflornitina ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as Iwilfin ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as MDL 71,782 A ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as NSC-270295 ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as NSC-337250 ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as Ornidyl ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as RMI-71782-A ChEMBL registry synonym — accepted as the source's own label CHEMBL830 ↗
Known as Vaniqa “Solaraze-topical diclofenac 3% and Vaniqa-topical eflornithine hydrochloride Cream, 13.9% applied to bilateral arms for a period of 9 months” NCT04091022 ↗
Action Inhibit “Difluoromethylornithine (DFMO) is an antiproliferative agent, inhibiting ornithine decarboxylase” PMID 18268112 ↗ Feb 2008
1

“Ornithine decarboxylase inhibitor” CHEMBL830 ↗

Modality Small molecule — CHEMBL830 ↗
Route Oral “oral eflornithine (DFMO)” NCT00003076 ↗
Target ODC1 “Ornithine decarboxylase inhibitor” CHEMBL830 ↗