Compare a new climate-friendly CHF5993 inhaler to standard inhalers for adults with mild to moderate asthma
Official title: A Phase II Multinational, Multicentre, Double-blind, Randomised, Active-controlled, 3-way Cross-over Study to Evaluate the Therapeutic Equivalence of CHF5993 pMDI 100/6/12.5 µg HFA-152a Versus CHF5993 pMDI 100/6/12.5 µg HFA-134a in Subjects With Mild to Moderate Asthma
Run by Chiesi Farmaceutici S.p.A. · NCT07301736 · Data updated 2026-11-12
This trial will see if a CHF5993 inhaler that uses a new climate-friendly propellant works the same and is as safe as standard inhalers for adults with mild to moderate asthma.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 780 (estimated) |
| Sponsor | Chiesi Farmaceutici S.p.A. Industry-sponsored |
| Drugs / interventions | omalizumab, mepolizumab, reslizumab, benralizumab, dupilumab, tezepelumab |
| Locations | 167 sites (Buenos Aires and 166 other locations) |
| Status | Recruiting |
| Started | December 17, 2025 |
| Main results expected | June 3, 2027 |
| Study ends | June 3, 2027 |
| Registry record updated | June 25, 2026 |
| Trial ID | NCT07301736 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18–75 with a diagnosis of asthma before age 50, stable on low or medium dose ICS (with or without LABA), controlled or partly controlled (ACQ‑7 <1.5), pre‑bronchodilator FEV1 between >40% and <90% predicted, and demonstrated bronchodilator reversibility (>12% and >200 mL).
✕Probably not a fit
People with severe or uncontrolled asthma, current heavy smokers, those outside the BMI range 18–35 kg/m2, or those who do not meet the lung function and reversibility criteria are unlikely to benefit from participating.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 2 randomized study compares CHF5993 pMDI using a low‑global‑warming propellant (HFA‑152a) with CHF5993 and CHF718 pMDIs using the existing HFA‑134a propellant. Approximately 468 adults (18–75 years) with mild to moderate, stable asthma and documented bronchodilator reversibility will be enrolled across sites in Europe, Latin America, Ukraine, South Africa and the UK. Participants will remain on stable low- or medium-dose ICS therapy (with or without LABA) and will be randomized to one of the inhaler formulations to measure lung function (FEV1), safety, tolerability and asthma control. The goal is to determine whether the HFA‑152a formulation provides equivalent clinical performance and safety to the current propellant formulations while offering lower environmental impact.
Why it matters
Potential benefit: If successful, patients could use an inhaler that delivers the same asthma control and safety while reducing the inhaler's global warming impact.
How similar studies have gone: Formulation-switch and propellant-equivalence studies for pMDIs have previously shown comparable clinical performance for other agents, but clinical data specifically for HFA‑152a are still limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male and female adults (18 ≤ age ≤ 75 years) with a diagnosis of Asthma for at least 6 months prior to screening and with diagnosis before the age of 50 years; * Non-smokers, ex-smokers; * Body mass index: within the range of 18.0 to 35.0 kg/m2 inclusive; * Stable asthma therapy: a stable maintenance treatment for at least 4 weeks prior to screening with: 1. low or medium doses of ICS (Inhaled Corticosteroids) alone; or 2. low or medium doses of ICS + LABA (Long-acting β2-agonist) (fixed or free combination). * Controlled or partly controlled based on an Asthma Control Questionnaire - 7 Items (ACQ-7) score \<1.5 at screening and at randomisation. * Pre-BD (Bronchodilator) FEV1 \>40% and \<90% of the predicted normal value, after appropriate wash out from BDs, at the Screening Visit (V1). * A demonstrated increase in either FEV1 or forced vital capacity of \>12% and \>200 mL from baseline within 30 minutes (min) after inhalation of 400 µg salbutamol (i.e. albuterol) pMDI at the Screening Visit (V1). Exclusion Criteria: * History of near fatal asthma or hospitalisation for asthma in intensive care unit, inpatient setting or emergency room access for asthma in the previous 6 months prior to screening, which in the judgement of the Investigator may place the subjects at undue risk; * Recent asthma exacerbation requiring systemic corticosteroids (SCSs), or emergency room admission or hospitalisation within 3 months prior to screening and/or during the run-in period ; * Non-persistent asthma: exercise-induced, seasonal asthma (as the only asthma-related diagnosis) not requiring daily asthma control medicine; * Asthma subjects currently treated with any of the following : 1. High dose ICS; 2. Long-acting muscarinic antagonist (LAMA); 3. Systemic, depot or slow-release corticosteroids within 12 weeks prior to screening; 4. Any other asthma treatments (e.g. cromolyn sodium, nedocromil sodium, leukotriene modifiers) within 4 weeks prior to screening; 5. Any biologic therapy (e.g. omalizumab, mepolizumab, reslizumab, benralizumab, dupilumab, tezepelumab) within 6 months prior to screening; * Respiratory disorders other than asthma * Lung resection; * Lower respiratory tract infection; * Lung cancer and history of lung cancer; * Subjects with active cancer or a history of cancer (other than lungs) ; * Patients who have clinically significant cardiovascular condition; * Run-in compliance: e-Diary completion \<75% and run-in treatment compliance \<75% at randomisation;
Where it's running
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Hospital Británico de Buenos Aires_Site n. 032029
Buenos Aires, Argentina Recruiting -
Centro Medico de Enfermedades Respiratorias_Site n. 032002
Buenos Aires, Argentina Recruiting -
Centro Medico Respire_Site n. 032014
Buenos Aires, Argentina Recruiting -
Asociación de Fomento y Sala de Primeros Auxilios "Alberto Mignaburu"_Site n. 032018
Buenos Aires, Argentina Recruiting -
Centro de Investigaciones Médicas Mar del Plata_Site n. 032019
Buenos Aires, Argentina Recruiting -
Fundacion CIDEA_Site n. 032009
Buenos Aires, Argentina Recruiting
Show 44 more locations
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Centro Medico Arsema_Site n. 032003
Buenos Aires, Argentina Recruiting -
Centro de Investigaciones Metabólicas (CINME)_Site n. 032025
Ciudad Autonoma de Buenos Aire, Argentina Recruiting -
Centro de Medicina Respiratoria - Concepcion del Uruguay_Site n. 032015
Ciudad Autonoma de Buenos Aire, Argentina Recruiting -
CARE - Centro de Alergia y Enfermedades Respiratorias_Site n. 032028
Ciudad Autonoma de Buenos Aire, Argentina Recruiting -
Consultorio Medico Dra. Rivera_Site n. 032012
Ciudad Autonoma de Buenos Aire, Argentina Recruiting -
Fundación Respirar Salud_Site n. 032004
Ciudad Autonoma de Buenos Aire, Argentina Recruiting -
Instituto de Medicina Respiratoria (IMER) - Cordoba_Site n. 032023
Córdoba, Argentina Recruiting -
CePIR_Site n. 032021
La Plata, Argentina Recruiting -
Fundacion Scherbovsky_Site n. 032013
Mendoza, Argentina Recruiting -
Instituto Medico INSARES SA_Site n. 032005
Mendoza, Argentina Recruiting -
Cimro Consultorios Medicos - Centro de Investigacion_Site n. 032006
Mendoza, Argentina Recruiting -
Centro Respiratorio Quilmes_Site n. 032007
Quilmes, Argentina Recruiting -
Fundacion Innovaciencia_Site n. 032017
Rosario, Argentina Recruiting -
Instituto de Especialidades de la Salud Rosario_Site n. 032020
Rosario, Argentina Recruiting -
Instituto Medico de la Fundacion de Estudios Clínicos_Site n. 032001
Rosario, Argentina Recruiting -
Fundacion Grupo Colaborativo Rosario_Site n. 032010
Rosario, Argentina Recruiting -
Instituto De Enfermedades Respiratorias E Investigacion Medica (IERIM)_Site n. 032011
San Juan Bautista, Argentina Recruiting -
Centro Modelo de Cardiologia SRL_Site n. 032016
San Miguel de Tucumán, Argentina Recruiting -
Clinica Mayo de UMCB SRL_Site n. 032026
San Miguel de Tucumán, Argentina Recruiting -
Investigaciones en Patologias Respiratorias_Site n. 032022
San Miguel de Tucumán, Argentina Recruiting -
IBAMEDICA_Site n. 032008
Santa Fe, Argentina Recruiting -
University Clinical Centre of the Republic of Srpska - Paprikovac_Site n. 070004
Banja Luka, Bosnia and Herzegovina Recruiting -
Sveti apostol Luka Doboj_Site n. 070005
Doboj, Bosnia and Herzegovina Recruiting -
Dr. Abdulah Nakas General Hospital_Site n. 070007
Sarajevo, Bosnia and Herzegovina Recruiting -
Dr. Abdulah Nakas General Hospital_Site n. 070009
Sarajevo, Bosnia and Herzegovina Recruiting -
Organizational unit Novi Grad_Site n. 070003
Sarajevo, Bosnia and Herzegovina Recruiting -
University Clinical Hospital Mostar_Site n. 07001
Siroki Brijeg, Bosnia and Herzegovina Recruiting -
Opca Bolnica Tesanj_Site n. 070006
Tešanj, Bosnia and Herzegovina Recruiting -
Dr. Mustafa Sehovic Public Medical Center_Site n. 070008
Tuzla, Bosnia and Herzegovina Recruiting -
University Clinical Centre Tuzla_Site n. 070002
Tuzla, Bosnia and Herzegovina Recruiting -
MHAT Sv. Ivan Rilski - Gorna Oryahovitsa_Site n.100017
Gorna Oryahovitsa, Bulgaria Recruiting -
Medical Center Pulmo - 2018_Site n. 100007
Haskovo, Bulgaria Recruiting -
MC ZDRAVE 1 - Kozloduy_Site n. 100009
Kozloduy, Bulgaria Recruiting -
Medical Centre Pratia Clinic EOOD - Lovech_Site n. 100012
Lovech, Bulgaria Recruiting -
Specialized Hospital for Active Treatment of Pulmonary Diseases - Pernik EOOD_Site n. 100020
Pernik, Bulgaria Recruiting -
Multiprofile Hospital for Active Treatment "Heart and Brain" EAD_Site n. 100019
Pleven, Bulgaria Recruiting -
Medical Centre ''Unimed'' EOOD_Site n. 100003
Plovdiv, Bulgaria Recruiting -
MHAT "St. Ivan Rilski "- Razgrad_Site 100013
Razgrad, Bulgaria Recruiting -
Outpatient Practice for Specialized Medical Care in Allergology- Dr. Talyat Sali Cholak EOOD_Site 100002
Razgrad, Bulgaria Recruiting -
Re Spiro Medical Center_Site n. 100018
Razgrad, Bulgaria Recruiting -
Medical Center Hermes Ruse_Site n. 100011
Rousse, Bulgaria Recruiting -
SHATPPD "Dr. Dimitar Gramatikov" Ruse EOOD_Site n. 100004
Rousse, Bulgaria Recruiting -
Multiprofile Hospital for Active Treatment "Dr. Ivan Seliminski" - Sliven AD_Site n.100014
Sliven, Bulgaria Recruiting -
Medical Center Hera EOOD_Site n. 100006
Sofia, Bulgaria Recruiting
+117 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Principal investigator: Piotr KUNA, MD — Barlicki University Hospital Medical University of Lodz, Poland
- Study coordinator: Chiesi Clinical Trial Info Chiesi Clinical Trials
- Email: clinicaltrials_info@chiesi.com
- Phone: +39 0521 2791
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.