Efficacy and safety of lunsekimig in adults with inadequately controlled eosinophilic COPD: a randomized, double‑blind, placebo‑controlled trial

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What is this study about?

The study focuses on adults who have Chronic Obstructive Pulmonary Disease that is not well‑controlled with usual medicines and who show an eosinophilic phenotype, a pattern where a type of white blood cell called eosinophils is higher than normal. Participants will receive either an injection of the experimental drug lunsekimig or a matched placebo, and neither the participants nor the study staff will know which one is given.

The purpose of the study is to see whether lunsekimig can reduce the number of moderate to severe flare‑ups of the lung disease over a year. After enrollment, participants will be randomly assigned to one of the two groups and will attend regular clinic visits for injections, safety checks, and simple breathing tests over several months.

A flare‑up, or exacerbation, means a sudden worsening of breathing problems that often requires extra medication or a hospital visit. The term Forced Expiratory Volume in 1 second refers to a common breathing test that measures how much air a person can force out of their lungs in one second; it helps doctors track lung function. The eosinophilic pattern is identified by a blood test that shows higher eosinophil counts, which can influence how the disease behaves and responds to treatment.

1 randomization and assignment

after enrollment, you will be randomly assigned to receive either lunsekimig or a matched placebo that looks identical.

the assignment is double‑blind, meaning neither you nor the study staff will know which product you receive.

2 first injection

you will receive an injection of the assigned product using a pre‑filled syringe.

the route is injection, and the label lists a dose of 00.00 mg; the exact amount is determined by the study protocol.

the injection is administered by trained personnel at the study site.

3 subsequent injections

additional injections of the same product are given at regular intervals as specified in the study schedule.

the frequency and total number of doses are defined by the protocol and continue for the duration of the treatment period.

4 clinic visits for assessments

you will attend scheduled clinic visits where several measurements are taken:

lung function tests (spirometry) before and after using a bronchodilator to measure the amount of air you can exhale in one second;

questionnaires such as the sgroq‑c, caat, and e‑rs:copd to evaluate symptoms and quality of life;

blood samples to check the concentration of lunsekimig and to test for antidrug antibodies;

routine laboratory tests to monitor safety.

5 monitoring for exacerbations

during the study you will report any worsening of COPD symptoms that require medical treatment.

the study records the number and severity of moderate to severe exacerbations.

6 end‑of‑treatment assessment

at the conclusion of the treatment period you will receive a final injection and undergo the same set of assessments performed at earlier visits.

data collected at this point are used to evaluate the primary and secondary outcomes of the study.

7 post‑treatment safety follow‑up

after the last dose, you will be followed for a defined safety period during which additional visits or phone contacts may occur to monitor any delayed effects.

final laboratory tests and questionnaires are completed before the study ends.

Who Can Join the Study?

  • Be between 40 and 80 years old.
  • Have a doctor’s diagnosis of chronic obstructive pulmonary disease (COPD) for at least one year.
  • Show a lung function result called post‑bronchodilator FEV1 that is at least 20% but not more than 70% of the normal value, and a ratio of FEV1/FVC that is less than 0.70 (these numbers indicate how well the lungs can move air).
  • Be a former or current smoker with a history of at least 10 pack‑years (one pack‑year equals smoking one pack per day for one year).
  • Score 10 or higher on the Chronic Airways Assessment Test (CAAT) (a questionnaire that measures how much breathing problems affect daily life).
  • Have had at least two moderate or one severe COPD exacerbation (worsening of symptoms) in the past year.
  • Have taken triple therapy (a combination of an inhaled corticosteroid, a long‑acting beta‑agonist, and a long‑acting muscarinic antagonist) for at least 12 consecutive weeks.
  • Have a blood eosinophil count of 150 cells per microliter or more (eosinophils are a type of white blood cell linked to inflammation).
  • Have a body mass index (BMI) between 18.0 and 40.0 kg/m² (a measure of body weight relative to height).

Who Cannot Join the Study?

  • Having asthma (including childhood asthma) or a condition called asthma‑COPD overlap syndrome (ACOS), which means both asthma and chronic obstructive pulmonary disease are present.
  • Having any other serious lung disease (pulmonary disease) besides chronic obstructive pulmonary disease.
  • Needing long‑term oxygen support of more than 4 liters per minute, or requiring more than 2 liters per minute to keep your blood oxygen level (called oxygen saturation) above 88% while at rest.
  • Having an unstable medical problem that could affect your safety or the study results.
  • Having active tuberculosis (TB) or TB that has not been fully treated.
  • Having current or past cancer (malignancies).
  • Using certain medicines, such as long‑term macrolide antibiotics or drugs that block enzymes called phosphodiesterase‑3 (PDE‑3) or phosphodiesterase‑4 (PDE‑4), unless you have been on a stable dose for more than 6 months; also any biologic therapy (medicines made from living cells) or systemic immunosuppressant drugs taken within the last 4 months or within five drug half‑lives before screening.

Where you can join this trial?

Verified and Recommended Sites

No sites found in this category

Verified Sites

Site Name City Country Status
IRCCS Humanitas Research Hospital Rozzano Italy
Azienda Ospedaliera Universitaria Federico II Di Napoli Naples Italy
Centre Hospitalier Universitaire De Bordeaux Bordeaux France
Centre Hospitalier Regional Et Universitaire De Brest Brest France
Azienda Ospedaliero Universitaria Careggi Florence Italy
Katholieke Universiteit te Leuven Leuven Belgium
CHU Grenoble Alpes La Tronche France
Bellvitge University Hospital L'hospitalet De Llobregat Spain
Hospital Jerez de la Frontera Jerez De La Frontera Spain
Gyncentrum Sp. z o.o. Katowice Poland

Other Sites

Site Name City Country Status
Azienda Ospedaliera di Padova Padua Italy
Centre Hospitalier De Versailles Le Chesnay-Rocquencourt France
Odense University Hospital Odense Denmark
Fondazione IRCCS Ca Granda Ospedale Maggiore Policlinico Milan Italy
Fondazione IRCCS Policlinico San Matteo Pavia Italy
Centre Hospitalier Le Mans Le Mans France
Karolinska University Hospital Solna Sweden
IRCCS Ospedale Policlinico San Martino Genoa Italy
Centre Hospitalier Universitaire De Montpellier Montpellier France
Sygehus Lillebaelt Vejle Sygehus Vejle Denmark
Aalborg University Hospital Aalborg Denmark
Hopital NOVO Pontoise France
Centro Hospitalar Do Baixo Vouga E.P.E. (CHBV E.P.E.) Aveiro Portugal
Pirkanmaan hyvinvointialue Tampere Finland
Fondazione Salvatore Maugeri Clinica Del Lavoro E Della Riabilitazione Pavia Italy
Hospital Foch Suresnes France
ASST Fatebenefratelli Sacco Milan Italy
Region Vaesterbotten Umea Sweden
Centre Hospitalier Lyon Sud Pierre Benite France
CHU Saint Pierre Brussels Belgium
Næstved Hospital Næstved Denmark
Azienda Ospedaliera Universitaria Policlinico Paolo Giaccone Palermo Italy
Universita’ Degli Studi Di Ferrara Ferrara Italy
Queen Silvia Childrens Hospital – Sahlgrenska University Hospital – Vaestra Goetalandsregionen Gothenburg Sweden
Centre Hospitalier Universitaire Dinant Godinne Sainte-Elisabeth-UCL-Namur Namur Belgium
CCAB Centro Clinico Academico Braga Associacao Braga Portugal
Unidade Local De Saude De Matosinhos E.P.E. Senhora Da Hora Portugal
Unidade Local De Saude Do Alto Ave E.P.E. Guimaraes Portugal
AORN San Giuseppe Moscati Avellino Avellino Italy
Pneumocare Namur Belgium
Pauls Stradins Clinical University Hospital Riga Latvia
University Of Debrecen Debrecen Hungary
University Teaching Hospital Markusovszky Szombathely Hungary
Matrai Gyogyintezet Gyongyos Hungary
Rigas 1. slimnica SIA Riga Latvia
Semmelweis University Budapest Hungary
Koch Robert Korhaz Es Rendelointezet Edeleny Hungary
Jasz-Nagykun-Szolnok Varmegyei Hetenyi Geza Korhaz-Rendelointezet Szolnok Hungary
Daugavpils regionala slimnica SIA Daugavpils Latvia
Erzsebet Gondozohaz Kft. Godollo Hungary
Infer-Med Kft. Pecs Hungary
Tapolcai Deak Jeno Korhaz Tapolca Hungary
Hospital Vithas Xanit Internacional Benalmadena Spain
Servei De Salut De Les Illes Balears Palma Spain
Hospital San Pedro De Alcantara Caceres Spain
Hospital De Merida Merida Spain
Hospital Universitario Virgen De La Victoria Malaga Spain
Velocity Clinical Research Luebeck GmbH Luebeck Germany
Medaimun GmbH Frankfurt Germany
Saarland University Hospital Homburg Germany
Pneumologie Schlafmedizin und Onkologie am Diako Elke Dankelmann Bernhard Faderl Sabina Wehgartner-Winkler Michael Heller und Prof. Dr. med. Guenter Schlimok Partnerschaft Augsburg Germany
POIS Sachsen GmbH Leipzig Germany
Pneumo Studien Darmstadt GmbH Darmstadt Germany
IKF Pneumologie GmbH & Co. KG Frankfurt Germany
Otto Von Guericke Universitaet Magdeburg Magdeburg Germany
Studienzentrum Dr. Claus Keller Frankfurt Germany
Institut für Allergie und Asthmaforschung Berlin, IAAB Berlin Germany
Pneumologie am Odeonsplatz, Dr. med. Jan Feimer Munich Germany
Center for Clinical and Basic Research AS Tallin Estonia
Tartu University Hospital Tartu Estonia
Pro Familia Altera Sp. z o.o. Katowice Poland
Centrum Medycyny Oddechowej Mroz Sp. j. Bialystok Poland
NZOZ Heureka Piaseczno Poland
Vybrkhuevwyifxju healxnrbogmzyaf Turku Finland
Ielxrfuk dk Czrlzpoyjwdj Hhhxamcyelv Ucwghwweurqlf de Slaea Embrwbh (owfhary Saint Priest En Jarez France
Hjqawa Hovkvccy Herlev Denmark
Cmze Dw Njvrc Vandoeuvre Les Nancy France
Apybefy Omnikdzakwr Neozuexow Sw Aboteqx E Bkecsl E C Agwhzu Ajxfmmrqkft Alexandria Italy
Aqqhwuh Ugq Irzdg De Rlzfhw Euefhs Reggio Emilia Italy
Uqngyhfylx Ok Auiglif Edegem Belgium
Cptpvx Hkdohsegifg Ufecqylyjrfik Rfaoo Reims France
Uenwlqglyz Dlhtc Sosln Dh Rknv Ld Snpspswq Rome Italy
Emgrihz Mechelen Belgium
Oayvjxxxi Eyedyf Kacd Mosonmagyaróvár Hungary
Cngnkokeo Kdsy Hajdunanas Hungary
Plmzvnmafvmyrml Ekpygxtfgrfnz Svmviwflmjr Ibdbnaowp Puspokladany Hungary
Kqfk Gnoe Bendorf Germany
Hgkdrrkui Ijzfxled fhty Tfroshtlcqxptetna Gnvo Hamburg Germany
Vevozxjk &ntbw Vakrhds Skw z ohfe Wroclaw Poland
Cunnszr Bfyju Keugczlbixi Apeminhyq Mcdvy Elblag Poland

Want to learn more about this study or check if you can participate? Contact us.

Trial status

Country Status Recruitment Start
Belgium Belgium
Not yet recruiting
02.07.2026
Denmark Denmark
Not yet recruiting
02.07.2026
Estonia Estonia
Not yet recruiting
02.07.2026
Finland Finland
Not yet recruiting
02.07.2026
France France
Not yet recruiting
02.07.2026
Germany Germany
Not yet recruiting
02.07.2026
Hungary Hungary
Not yet recruiting
02.07.2026
Italy Italy
Not yet recruiting
02.07.2026
Latvia Latvia
Not yet recruiting
02.07.2026
Poland Poland
Not yet recruiting
02.07.2026
Portugal Portugal
Not yet recruiting
02.07.2026
Spain Spain
Recruiting
02.07.2026
Sweden Sweden
Not yet recruiting
02.07.2026

Trial locations

Investigated Drugs:

LUNSEKIMIG is an investigational medicine being tested in this study. It is given as an injection using a pre‑filled syringe. The drug is designed to help adults with chronic obstructive pulmonary disease (COPD) whose symptoms are not well controlled, especially those who have an eosinophilic type of COPD. In the trial, participants receive LUNSEKIMIG to see if it can lower the number of moderate to severe COPD flare‑ups they experience over a year, while researchers also watch for safety and any side effects.

Chronic obstructive pulmonary disease – Chronic obstructive pulmonary disease (COPD) is a long‑term lung condition that causes narrowed airways and reduced airflow. It usually develops slowly and is linked to exposure to irritants such as cigarette smoke. Over time breathing becomes more difficult, with increased coughing and shortness of breath. Periodic worsening episodes, called exacerbations, can cause a sudden increase in symptoms. The disease often progresses from mild to moderate and eventually to severe limitation of breathing. Changes in lung function can be measured with tests that assess the amount of air expelled in one second.

Trial ID:
2024-518016-39-00
Protocol code:
EFC18243-PERSEPHONE
NCT ID:
NCT07190209
Trial Phase:
Therapeutic use (Phase IV)

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