A Safety, and Tolerability Study of VRDN-003 in Participants with Thyroid Eye Disease (TED)

2024-519417-57-00 Protocol VRDN-003-303 Therapeutic confirmatory (Phase III) Ongoing, recruitment ended

Start 25 Jun 2025 · Status Ongoing, recruitment ended · 4 EU/EEA countries · 22 sites · Protocol VRDN-003-303

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Ongoing, recruitment ended
Participants planned 322
Countries 4
Sites 22

Thyroid eye disease

To evaluate if VRDN-003 is safe and tolerable (meaning if the body reacts acceptably to VRDN-003) when administered as a series of subcutaneous/SC (injection into layer of fat between skin and muscle) injections given every 4 weeks or every 8 weeks in participants with TED of any duration.

Key facts

Sponsor
Viridian Therapeutics Inc.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Eye Diseases [C11]
Trial duration
25 Jun 2025 → ongoing
Decision date (initial)
2025-06-05
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes
Funding sources
Viridian Therapeutics Inc.

External identifiers

EU CT number
2024-519417-57-00
ClinicalTrials.gov
NCT06812325

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Safety, Others, Pharmacokinetic

To evaluate if VRDN-003 is safe and tolerable (meaning if the body reacts acceptably to VRDN-003) when administered as a series of subcutaneous/SC (injection into layer of fat between skin and muscle) injections given every 4 weeks or every 8 weeks in participants with TED of any duration.

Conditions and MedDRA coding

Thyroid eye disease

VersionLevelCodeTermSystem organ class
20.1 PT 10060742 Endocrine ophthalmopathy 100000004853
23.1 LLT 10084358 Thyroid eye disease 100000004848

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 4

  1. Adult males or females, ≥18 to ≤75 years of age
  2. Have a clinical diagnosis of TED of any duration and in the opinion of the Investigator may benefit from VRDN-003
  3. Must agree to use highly effective contraception as specified in the protocol
  4. Female participants must have a negative pregnancy test at first study visit

Exclusion criteria 7

  1. Received prior treatment with another anti-IGF-1R therapy
  2. Received corticosteroids (drugs that reduce inflammation in the body) or steroid eye drops for any condition, including TED, within 2 weeks prior to first dose.
  3. Received other immunosuppressive drugs (drugs that dampen the body’s immune response) or any other therapy for TED within 12 weeks prior to first dose or another investigational agent for any condition, including TED, within 8 weeks or longer duration (depending on the type of investigational agent) prior to first dose.
  4. Have had previous orbital irradiation or decompression surgery for TED or a preexisting eye condition which in the study doctor’s opinion, would interfere with interpretation of study results
  5. Have abnormal hearing test before first dose. History of ear conditions considered significant by study doctor
  6. Have inflammatory bowel disease (conditions that involve inflammation of the gastrointestinal [GI] tract)
  7. Female participants who are pregnant or breastfeeding

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. The primary study endpoint will assess the rate at which safety events occur after starting treatment with VRDN-003 (Treatment Emergent Adverse Event) through Week 24.

Secondary endpoints 2

  1. Changes in eye bulging at Week 24 versus measurements before the first dose.
  2. The rate at which safety events occur after starting treatment with VRDN-003 through study completion.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

VRDN (Insulin-like growth factor-1 receptor [IGF-1R] inhibitor with half-life extension)

PRD11512817 · Product

Active substance
VRDN-003
Pharmaceutical form
INJECTION
Route of administration
SUBCUTANEOUS USE
Max daily dose
600 mg milligram(s)
Max total dose
2100 mg milligram(s)
Max treatment duration
20 Week(s)
Authorisation status
Not Authorised
MA holder
VIRIDIAN THERAPEUTICS, INC.
Paediatric formulation
No
Orphan designation
No

Placebo 1

TED SC Placebo

N/A · Product

Other product name
N/A
Pharmaceutical form
N/A
ATC code
N/A — N/A
Marketing authorisation
N/A
MA holder
N/A
MA country
Iceland
Paediatric formulation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Viridian Therapeutics Inc.

Sponsor organisation
Viridian Therapeutics Inc.
Address
221 Crescent Street Suite 103a
City
Waltham
Postcode
02453-3425
Country
United States

Scientific contact point

Organisation
Viridian Therapeutics Inc.
Contact name
Chief Medical Officer

Public contact point

Organisation
Viridian Therapeutics Inc.
Contact name
Chief Medical Officer

Third parties 13

OrganisationCity, countryDuties
CluePoints INC
ORL-000002186
King of Prussia, United States Other
Hearx SA (Pty) Ltd.
ORG-100052375
Pretoria, South Africa Other
Acm Global Central Laboratory Limited
ORG-100042459
York, United Kingdom Laboratory analysis
Suvoda LLC
ORG-100043523
Conshohocken, United States Interactive response technologies (IRT)
Medidata Solutions Inc.
ORG-100016256
New York, United States E-data capture
Acm Medical Laboratory Inc.
ORG-100042792
Rochester, United States Laboratory analysis
Arup Laboratories Inc.
ORG-100041750
Salt Lake City, United States Laboratory analysis
Leapcure Inc.
ORL-000003865
Redwood City, CA, United States Code 2
Parexel International (IRL) Limited
ORG-100022780
Dublin 2, Ireland On site monitoring, Code 10, Code 11, Code 12, Code 13, Code 2, Code 5, Data management, Code 8
Scout Clinical
ORG-100042228
Dallas, United States Other
Kcas LLC
ORG-100043073
Olathe, United States Laboratory analysis
Xerimis Inc.
ORG-100045410
Moorestown, United States Code 14, Laboratory analysis
The Doctors Laboratory Limited
ORG-100012670
London, United Kingdom Laboratory analysis

Locations

4 EU/EEA countries · 22 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Ongoing, recruitment ended 9 3
Germany Ongoing, recruitment ended 46 4
Poland Ongoing, recruitment ended 68 8
Spain Ongoing, recruitment ended 17 7
Rest of world
Turkey, United Kingdom, United States
182

Investigational sites

France

3 sites · Ongoing, recruitment ended
Assistance Publique Hopitaux De Paris
1512;, Num Voie 47 A 83, 47 Boulevard De L Hopital, Paris
Hospices Civils De Lyon
1508;, 28 Avenue Du Doyen Jean Lepine, 69500, Bron
Centre Hospitalier Universitaire D'Angers
1502: Service d'Endocrinologie, Diabétologie et Nutrition, 4 Rue Larrey, 49100, Angers

Germany

4 sites · Ongoing, recruitment ended
Universitaetsklinikum Essen AöR
1604:Klinik für Augenheilkunde, Hufelandstrasse 55, Holsterhausen, Essen
Charite Universitaetsmedizin Berlin KöR
1603:Klinik für Augenheilkunde, Augustenburger Platz 1, Wedding, Berlin
Universitaetsmedizin der Johannes Gutenberg-Universitaet Mainz KöR
1605:Endokrinologie & Stoffwechselerkranknugen, Langenbeckstrasse 1, Oberstadt, Mainz
Universitaetsmedizin Goettingen
1602:Klinik für Augenheilkunde, Robert-Koch-Strasse 40, Weende, Goettingen

Poland

8 sites · Ongoing, recruitment ended
Santa Sp. z o.o.
2208; Santa Familia PTG Lodz, Ul. Pilota Stanislawa Wigury 19, 90-302, Lodz
ETG Lublin Sp. z o.o.
2215; ETG Lublin, Ul. Wladyslawa Kunickiego 26a, 20-412, Lublin
Warszawski Szpital Okulistyczny Sp. z o.o.
2212; Warszawski Szpital Okulistyczny, Ul. Wolska 165/u7, 01-258, Warsaw
Uniwersytecki Szpital Kliniczny W Bialymstoku
2201; Klinika Okulistyki, Centrum Badan Klinicznych, Ul. Marii Curie-Sklodowskiej 24a, 15-276, Bialystok
Pratia S.A.
2213; Centrum Medyczne Pratia Gdynia, Ul. Chrzanowskiego 3 Lok 5, 81-338, Gdynia
Centrum Medyczne Pulawska Sp. z o.o.
2203; Centrum Medyczne Pulawska Sp. z o.o., Ul. Pulawska 49, 05-500, Piaseczno
Polimedica Centrum Badan Profilaktyki I Leczenia Sp. z o.o.
2216; Polimedica PTG, Ul. Belgradzka 52/54, Ursynow, Warsaw
Profesorskie Centrum Medyczne Sp. z o.o.
2204; opthalmology, Ul. Warszawska 20, 80-180, Gdansk

Spain

7 sites · Ongoing, recruitment ended
Clinica Universidad De Navarra
2112: Oftalmología, Pio XII Etorbidea 36, 31008, Pamplona
Hospital Universitario Virgen De La Macarena
2101: Oftalmología, Avenida Del Doctor Fedriani 3, 41009, Sevilla
Complexo Hospitalario Universitario De Santiago
2104: Oftalmología, Calle Choupana Da S/n, 15706, Santiago De Compostela
Hospital Universitario Miguel Servet
2105: Oftalmología, Paseo De Isabel La Catolica 1-3, 50009, Zaragoza
Metavision Arruzafa S.L.
2106: Oftalmología, Avenida De La Arruzafa 9, 14012, Cordoba
Hospital Universitario Ramon Y Cajal
2103: Oftalmología, Carretera Del Colmenar Viejo Km 9 100, Por El Pardo, Madrid
Institut Catala De Retina S.L.
2115: Oftalmología, Calle De La Pau Alcover 67, 08017, Barcelona

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
France 2025-09-15 2025-09-15 2025-09-29
Germany 2025-08-01 2025-08-13 2025-09-30
Poland 2025-06-25 2025-07-08 2025-09-30
Spain 2025-07-10 2025-08-20 2025-09-29

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 29 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol Main English VRDN-003-303 Public 3.0
Recruitment arrangements (for publication) K1_DEU Recruitment Procedure Description English VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K1_ESP Recruitment Flyer Spanish VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K1_ESP Recruitment Other PAO Tile Spanish VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K1_ESP Recruitment Poster Spanish VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K1_FRA Recruitment Procedure Description French English VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K1_POL Recruitment Procedure Description English Polish VRDN-003-303 Public 2.0
Recruitment arrangements (for publication) K2_DEU Recruitment Flyer German VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_DEU Recruitment Other PAO Tile German VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_DEU Recruitment Poster German VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_ESP Recruitment Procedure Description English VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_FRA Recruitment Flyer French VRDN-003-303 Public 1.1
Recruitment arrangements (for publication) K2_FRA Recruitment Other PAO Tile French VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_FRA Recruitment Poster French VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_POL Recruitment Flyer Polish VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_POL Recruitment Other PAO Tile Polish VRDN-003-303 Public 1.0
Recruitment arrangements (for publication) K2_POL Recruitment Poster Polish VRDN-003-303 Public 1.0
Subject information and informed consent form (for publication) L1_DEU Country ICF Main German VRDN-003-303 Public 3.0
Subject information and informed consent form (for publication) L1_DEU Country ICF Other Pregnant Part Particip German VRDN-003-303 Public 1.0
Subject information and informed consent form (for publication) L1_ESP Country ICF Main Spanish VRDN-003-303 Public 3.0
Subject information and informed consent form (for publication) L1_ESP Country ICF Other Pregnant Participant Partner Spanish VRDN-003-303 Public 1.0
Subject information and informed consent form (for publication) L1_FRA Country ICF Main French VRDN-003-303 Public 3.0
Subject information and informed consent form (for publication) L1_FRA Country ICF Other Pregnancy French VRDN-003-303 Public 1.1
Subject information and informed consent form (for publication) L1_POL Country ICF Main Adult Polish VRDN-003-303 Public 4.0
Subject information and informed consent form (for publication) L1_POL Country ICF Other Pregnant Participant and Partner Polish VRDN-003-303 Public 1.0
Synopsis of the protocol (for publication) D1_Lay Protocol Synopsis Main English VRDN-003-303 Public 4.0
Synopsis of the protocol (for publication) D1_Lay Protocol Synopsis Main French VRDN-003-303 Public 4.0
Synopsis of the protocol (for publication) D1_Lay Protocol Synopsis Main Polish VRDN-003-303 Public 4.0
Synopsis of the protocol (for publication) D1_Lay Protocol Synopsis Main Spanish VRDN-003-303 Public 4.0

Application history

4 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-02-21 Spain Acceptable
2025-06-05
2025-06-05
2 SUBSTANTIAL MODIFICATION SM-1 2025-07-01 Spain Acceptable
2025-09-03
2025-09-03
3 NON SUBSTANTIAL MODIFICATION NSM-1 2025-10-21 Spain Acceptable
2025-09-03
2025-10-21
4 SUBSTANTIAL MODIFICATION SM-2 2026-03-12 Spain Acceptable
2026-04-21
2026-04-23