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NCT06966479Active, not recruitingPhase 2

A Long-Term Safety and Efficacy Study of Verekitug (UPB-101) in Adult Participants with Severe Asthma

A Long-Term Extension Study to Evaluate Safety and Efficacy of Verekitug (UPB-101) in Adult Participants with Severe Asthma who Completed the VALIANT Trial

Source: EU CTIS (euclinicaltrials.eu) · Last updated 8 Jun 2026

Brief summary (registry, in English)

To check if long-term treatment with verekitug is safe and tolerable for adults with severe asthma.

Status (registry)
Active, not recruiting
Phase (registry)
Phase 2
Study type
Interventional
Enrollment
123 (estimated)
First submitted
15 Apr 2025
Start date
20 Oct 2025
Lead sponsor
Upstream Bio Inc.
Diseases
Asthma
EU CT number
2024-519469-23-00

What you commit to

  • Study type: Interventional · Phase 2
  • Planned participants: 123
  • 30 sites in 6 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of EU CTIS (euclinicaltrials.eu). It describes the study, not your situation.

Who cannot take part

Copied verbatim from EU CTIS (euclinicaltrials.eu) and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Participant with a history or evidence of a clinically significant pulmonary condition (other than asthma), including significant restrictive findings on pulmonary function testing, chronic bronchitis, emphysema, bronchiectasis, pulmonary fibrosis, or any other related condition that may obscure the study data (e.g., gastroesophageal reflux and vocal cord paralysis/dysfunction).
  • Participant is unreliable, incapable of adhering to the protocol and visit schedule according to the judgment of the Investigator or has any disorder that may compromise their ability to give informed consent.

Lab values

  • Any clinical laboratory test result outside of the reference ranges considered by the Investigator as clinically significant and that may obscure the study data or interfere with the participant’s safety.

Other

  • Abnormal medical history, physical finding, or safety finding that in the opinion of the Investigator may obscure the study data or interfere with the participant’s safety.
  • Pregnant or breastfeeding or planning to become pregnant or breastfeed during the study or unwilling to use adequate birth control, if of reproductive potential and sexually active.
  • Participants with significant protocol deviations in VALIANT, assessed at the discretion of the Sponsor.

Who the study is looking for

  • Completion of the VALIANT study per protocol. Participants must have not met VALIANT discontinuation criteria and have attended the VALIANT EOS visit.
  • Participant has signed, dated, and received a copy of the Institutional Review Board (IRB)/Independent Ethics Committee (IEC)-approved written informed consent form (ICF) for the LTE study.
  • Contraceptive use by participants must be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on EU CTIS (euclinicaltrials.eu)

Sites (30)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Medical Center Zdrave-1 OOD
Coordinator of this site? Confirm its status
KozloduyBulgariaActive, not recruiting
Rahila Angelova Mbal AD
Coordinator of this site? Confirm its status
PernikBulgariaActive, not recruiting
Medical Center Hermes Ruse Ltd.
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RuseBulgariaActive, not recruiting
Medical Center Pulmovision Ltd.
Coordinator of this site? Confirm its status
SofiaBulgariaActive, not recruiting
Medical Center Hera EOOD
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SofiyaBulgariaActive, not recruiting
Medical Center Excelsior OOD
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SofiyaBulgariaActive, not recruiting
Diagnostics And Consultation Center Convex Ltd.
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SofiyaBulgariaActive, not recruiting
Medical Center New Rehabilitation Center EOOD
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Stara ZagoraBulgariaActive, not recruiting
Plicni Stredisko Teplice S.R.O
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TepliceCzechiaActive, not recruiting
KPPK GmbH
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BendorfGermanyActive, not recruiting
Research Center for Medical Studies (RCMS)
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BerlinGermanyActive, not recruiting
IKF Pneumologie GmbH & Co. KG
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Frankfurt am MainGermanyActive, not recruiting
ME Clinical Respiratory Research Hamburg GmbH
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HamburgGermanyActive, not recruiting
POIS Sachsen GmbH
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LeipzigGermanyActive, not recruiting
IKF Pneumologie GmbH & Co. KG
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MainzGermanyActive, not recruiting
Giromed Institute S.L.P.
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BarcelonaSpainActive, not recruiting
Hospital General Universitario Gregorio Marañón
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MadridSpainActive, not recruiting
Fondazione IRCCS Policlinico San Matteo
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PaviaItalyActive, not recruiting
Centrum Medycyny Oddechowej Mroz sp. j.
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BialystokPolandActive, not recruiting
Centrum Medyczne All-Med Badania Kliniczne
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CracowPolandActive, not recruiting
Malopolskie Centrum Alergologii Sp. z o.o.
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CracowPolandActive, not recruiting
Uniwersyteckie Centrum Kliniczne
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GdanskPolandActive, not recruiting
Atopia NZOZ
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KrakowPolandActive, not recruiting
Ostrowieckie Centrum Medyczne Anna Olech Cudzik Krzysztof Cudzik s.c.
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Ostrowiec ŚwiętokrzyskiPolandActive, not recruiting
Prywatny Gabinet Lekarski Malgorzata Pawlukiewicz
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RzeszcowPolandActive, not recruiting
EMED Centrum Usług Medycznych Ewa Śmiałek
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RzeszówPolandActive, not recruiting
ALERGO-MED OŚRODEK BADAŃ KLINICZNYCH Sp. z o.o.
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TarnówPolandActive, not recruiting
Centrum Badań Klinicznych Piotr Napora Lekarze Sp. p.
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WroclawPolandActive, not recruiting
ALL-MED Specjalistyczna Opieka Medyczna Medyczny Instytut Badawczy
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WroclawPolandActive, not recruiting
Lekarze Specjalisci - J. Malolepszy I Partnerzy
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WroclawPolandActive, not recruiting

This page is information, not medical advice. Discuss any trial with your doctor.