Drugs / Belumosudil
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Belumosudil

Small molecule targets ROCK2 via inhibition

Developed for
chronic graft versus host disease · psoriasis · chronic transplant rejection · diffuse cutaneous systemic sclerosis · plasma cell myeloma · cancer · graft versus host disease · idiopathic pulmonary fibrosis
+2 more · transplant rejection · transplant-related bronchiolitis obliterans
Investigated by
Kadmon, a Sanofi Company · Sanofi · Kadmon Corporation, LLC · Quotient Sciences · Meiji Seika Pharma Co., Ltd. · Cancer Institute and Hospital, Chinese Academy of Medical Sciences
+21 more · Dana-Farber Cancer Institute · Dennis Kim · First Affiliated Hospital of Ningbo University · First Affiliated Hospital of Zhejiang University · Fred Hutchinson Cancer Center · KAEDI · M.D. Anderson Cancer Center · Memorial Sloan Kettering Cancer Center · National Heart, Lung, and Blood Institute (NHLBI) · National Institute of Allergy and Infectious Diseases (NIAID) · Northside Hospital, Inc. · Peking University People's Hospital · Quotient Clinical · Ruijin Hospital · Sanofi US Services, Inc · The First Affiliated Hospital of Zhengzhou University · The Methodist Hospital Research Institute · Tongji Hospital · Union Hospital, Tongji Medical College, Huazhong University of Science and Technology · University of California, Los Angeles · jianming xu

Regulatory milestones approvals, filings & regulatory actions · 3 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Rejected chronic graft versus host disease 1 milestone
Refused (EMA) EU (EMA) Rezurock chronic graft versus host disease 2025-10-17

“negative opinion on the marketing authorisation application for Rezurock (belumosudil) for the third-line treatment of adults and pediatric patients with chronic...” sanofi.com ↗

Approved Indication not stated 2 milestones
Approved · conditional EU (EMA) Rezurock — 2026-03-24 europa.eu ↗
Approved US (FDA) REZUROCK — 2021-07-16 fda.gov ↗

Trials 38

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 02 trials
Phase 0 NCT05382377 May 2022 → May 2024 cancer jianming xu Unknown No outcome recorded
Phase 0 NCT04735822 Oct 2020 → Sep 2021 — Kadmon Corporation, LLC Completed No outcome recorded
Phase 19 trials
Phase 1 NCT05806749 Jul 2023 → Aug 2028 expected chronic transplant rejection, end stage renal failure University of California, Los Angeles Active not recruiting No outcome recorded
Phase 1 NCT05806567 Jul → Oct 2022 immune system disorder Kadmon, a Sanofi Company Completed No outcome recorded
Phase 1 NCT04166942 Dec 2019 → Jun 2022 — Kadmon, a Sanofi Company Completed No outcome recorded
Phase 1 NCT03907540 Apr → May 2019 autoimmune disease Kadmon Corporation, LLC Completed No outcome recorded
Phase 1 NCT03530995 Apr 2018 → Feb 2019 autoimmune disease Kadmon Corporation, LLC Completed No outcome recorded
Phase 1 NCT02557139 Sep → Oct 2015 — Kadmon Corporation, LLC Completed No outcome recorded
Phase 1 NCT05918614 Mar → Jun 2014 immune system disorder Kadmon, a Sanofi Company Completed No outcome recorded
Phase 1 NCT05918588 Nov 2013 → Mar 2014 immune system disorder Kadmon, a Sanofi Company Completed No outcome recorded
Phase 1 NCT05918627 Sep → Dec 2009 immune system disorder Kadmon, a Sanofi Company Completed No outcome recorded
Phase 1/22 trials
Phase 1/2 NCT06105554 Jan 2024 → Aug 2027 expected plasma cell myeloma M.D. Anderson Cancer Center Recruiting No outcome recorded
Phase 1/2 NCT04643002 Jan 2021 → Sep 2027 expected plasma cell myeloma Sanofi Recruiting No outcome recorded
Phase 218 trials · 2 missed
Phase 2 NCT07643025 Nov 2026 → Nov 2029 expected chronic graft versus host disease Dennis Kim Not yet recruiting No outcome recorded
Phase 2 NCT07116031 Dec 2025 → Sep 2028 expected chronic graft versus host disease Sanofi Recruiting No outcome recorded
Phase 2 NCT06751602 Sep 2025 → Dec 2027 expected chronic transplant rejection The Methodist Hospital Research Institute Enrolling by invitation No outcome recorded
Phase 2 NCT05567406 Jun 2025 → Aug 2026 chronic graft versus host disease Kadmon, a Sanofi Company Withdrawn No outcome recorded Stop: Business
Phase 2 NCT07006506 May 2025 → May 2029 expected graft versus host disease, hematopoietic and lymphoid cell neoplasm Memorial Sloan Kettering Cancer Center Recruiting No outcome recorded
Phase 2 NCT06476132 Mar 2025 → May 2027 expected — National Institute of Allergy and Infectious Diseases (NIAID) Recruiting No outcome recorded
Phase 2 NCT05922761 May 2024 → Jun 2027 expected chronic graft versus host disease, transplant-related bronchiolitis obliterans Dana-Farber Cancer Institute Recruiting No outcome recorded
Phase 2 NCT06046248 Jan 2024 → Dec 2026 expected chronic graft versus host disease Northside Hospital, Inc. Recruiting No outcome recorded
Phase 2 NCT05996627 Dec 2023 → Apr 2028 expected chronic graft versus host disease Fred Hutchinson Cancer Center Recruiting No outcome recorded
Phase 2 NCT05305989 Feb 2022 → Jun 2024 chronic graft versus host disease Kadmon, a Sanofi Company Completed No outcome recorded
Phase 33 trials
Phase 3 NCT07771439 Sep 2026 → Sep 2029 expected chronic graft versus host disease Sanofi Not yet recruiting No outcome recorded
Phase 3 NCT06143891 Jan 2024 → Sep 2028 expected chronic graft versus host disease Sanofi Active not recruiting No outcome recorded
Phase 3 NCT06082037 Oct 2023 → Jan 2029 expected transplant rejection Sanofi Recruiting No outcome recorded
Phase 42 trials
Phase 4 NCT07135973 Aug 2026 → Aug 2027 expected chronic graft versus host disease Sanofi Not yet recruiting No outcome recorded
Phase 4 NCT06616415 Dec 2024 → May 2026 chronic graft versus host disease Sanofi Completed No outcome recorded
Phase not applicable2 trials
— NCT07794514 Oct 2026 → Apr 2030 expected chronic graft versus host disease First Affiliated Hospital of Zhejiang University Recruiting No outcome recorded
— NCT06509490 Jul 2024 overdue — Cancer Institute and Hospital, Chinese Academy of Medical Sciences Recruiting No outcome recorded
Comparator or background therapy1 trial
Phase 1 NCT07484113 Background Jul 2026 → May 2028 expected chronic graft versus host disease Stanford University Not yet recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 4

DateIssuerRelease
2026-03-31 Sanofi Regulatory Press Release: Sanofi’s Rezurock approved in the EU to treat chronic graft-vs-host disease sanofi.com ↗
The European Commission has granted a conditional marketing authorisation for Rezurock (belumosudil) for the treatment of chronic graft-versus-host disease (GVHD) in adults and in children aged 12 years and older with a body weight of at least 40 kg.
2026-01-30 Sanofi Regulatory Press Release: Sanofi’s Rezurock recommended for EU approval by the CHMP to treat chronic graft-vs-host disease sanofi.com ↗
Sanofi’s Rezurock recommended for EU approval by the CHMP to treat chronic graft-vs-host disease
2025-10-17 Sanofi Regulatory Press Release: Sanofi provides update on regulatory review in the EU for Rezurock to treat chronic graft-vs-host disease sanofi.com ↗
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has issued a negative opinion on the marketing authorisation application for Rezurock (belumosudil) for the third-line treatment of adults and pediatric patients with chronic graft-versus-host disease (cGVHD).
2022-04-21 Sanofi Results Media Update: Rezurock® (belumosudil) patient-reported outcomes correlated with clinical response in chronic graft-versus-host disease sanofi.com ↗
Results from a pooled analysis of Rezurock ® (belumosudil) for the treatment of chronic graft-versus-host disease (cGVHD) show certain organ clinical responses correlated with clinically meaningful changes in patient-reported outcomes (PROs).

Evidence & citations 11 cited values

Every value below carries the sentence it was read from. 42 sources stand behind the page.

FieldValueCited text
Known as Belumosudil ClinicalTrials.gov intervention name — accepted as the source's own label NCT02106195 ↗
34

NCT05806567 ↗

NCT07116031 ↗

NCT06105554 ↗

NCT07794514 ↗

NCT05918614 ↗

NCT04680975 ↗

NCT06082037 ↗

NCT05922761 ↗

NCT04643002 ↗

NCT06476132 ↗

Show 24 more sources

Known as Belumosudil mesylate “Drug: Belumosudil mesylate” NCT05918627 ↗
1

“Drug: Belumosudil mesylate” NCT05918588 ↗

Known as KD-025 MESYLATE ChEMBL registry synonym — accepted as the source's own label CHEMBL2005186 ↗
Known as KD025 “Belumosudil (2-(3-(4-(1H-indazol-5-ylamino) quinazolin-2-yl) phenoxy)-N-isopropylacetamide-methane sulfonic acid salt), formerly also known as KD025, is an orally available...” NCT07484113 ↗
10

“A Phase 2, Randomized, Placebo-controlled, Double-blind, Open-label Extension Multicenter Study to Evaluate the Efficacy and Safety of Belumosudil (KD025) in Subjects With...” NCT03919799 ↗

“This is a single-center, 2-part, non-randomized, open-label study of the drug-drug interactions of belumosudil (KD025) with itraconazole, rifampicin, rabeprazole, and...” NCT03530995 ↗

“Belumosudil (KD025), an oral, selective, Rho-associated, coiled-coil-containing protein kinase 2 (ROCK2) inhibitor, is approved for third-line treatment of chronic...” PMID 40311075 ↗ Jul 2025

“This study was been conducted to evaluate the safety, tolerability, and activity of belumosudil (formerly known as KD025) in adult participants with chronic graft versus host...” NCT02841995 ↗

“administration of the drug belumosudil (KD025) will be safe and improve transplant tolerance” NCT05806749 ↗

“Bioavailability of Belumosudil (KD025) in Healthy Male Subjects” NCT02557139 ↗

NCT04166942 ↗

NCT02317627 ↗

NCT06509490 ↗

NCT05382377 ↗

Known as REZUROCK “This is a randomized, double-blind, placebo-controlled trial in de novo kidney transplant patients to determine if the addition of belumosudil (brand name- REZUROCK®) on the...” NCT06751602 ↗
Known as Rock2 inhibitor kd025 ChEMBL registry synonym — accepted as the source's own label CHEMBL2005186 ↗
Known as Slx-2119 free base ChEMBL registry synonym — accepted as the source's own label CHEMBL2005186 ↗
Action Inhibit “Selective ROCK2 inhibition with belumosudil (KD025) may offer a novel approach to the management of chronic graft-versus-host disease (cGVHD).” PMID 33877856 ↗ Apr 2021
Modality Small molecule “Kinase inhibitor, tablet taken orally” NCT05922761 ↗
Route Oral “belumosudil given orally once daily” NCT02106195 ↗
Target ROCK2 “Selective ROCK2 inhibition with belumosudil (KD025) may offer a novel approach to the management of chronic graft-versus-host disease (cGVHD).” PMID 33877856 ↗ Apr 2021