A study to test how well BI 3720931 is tolerated and whether it improves lung function in people with cystic fibrosis (LenticlairTM 1)

2023-503281-23-00 Protocol 1504-0001 Phase I and Phase II (Integrated) - First administration to humans Ended

Start 19 Dec 2024 · End 3 Feb 2026 · Status Ended · 4 EU/EEA countries · 6 sites · Protocol 1504-0001

Overview

Sponsor-declared trial summary

Phase Phase I and Phase II (Integrated) - First administration to humans
Status Ended
Participants planned 27
Countries 4
Sites 6

Cystic fibrosis

"Phase I: To investigate safety and tolerability of a single inhaled dose of BI 3720931 based on number of trial participants with at least one drug-related, treatment emergent AE up to Week 24 after dosing. Phase II: To demonstrate superiority of the higher BI 3720931 dose over PBO on the primary endpoint, the absolut…

Key facts

Sponsor
Boehringer Ingelheim International GmbH, Boehringer Ingelheim Espana S.A.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Respiratory Tract Diseases [C08]
Trial duration
19 Dec 2024 → 3 Feb 2026
Decision date (initial)
2024-06-24
Transition trial
No
Low-intervention
No
Rare-disease indication
Yes
Vulnerable population
No

External identifiers

EU CT number
2023-503281-23-00
WHO UTN
U1111-1291-0800

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy, Efficacy, Safety, Others, Pharmacokinetic, Pharmacodynamic

"Phase I: To investigate safety and tolerability of a single inhaled dose of BI 3720931 based on number of trial participants with at least one drug-related, treatment emergent AE up to Week 24 after dosing.
Phase II: To demonstrate superiority of the higher BI 3720931 dose over PBO on the primary endpoint, the absolute change from baseline in FEV1pp at Week 8. If superiority for the high dose is established, superiority of the lower dose versus PBO will be tested in a hierarchical manner on the primary endpoint. "

Secondary objectives 5

  1. Phase I: Evaluate clinical efficacy after a single inhaled dose of BI 3720931 based on the number of responders, as part of an interim analysis prior to moving to Phase II. Response is defined as an absolute change from baseline ≥5% in FEV1pp using the mean of the values at Weeks 4, 6, and 8 after dosing
  2. Phase I: Evaluate clinical efficacy after a single inhaled dose of BI 3720931 based on absolute change from baseline in FEV1pp at Week 24
  3. Phase I: Evaluate safety after a single inhaled dose of BI 3720931 based on occurrence of dose limiting toxicities (DLTs) up to Week 24
  4. Phase II: Investigate safety and tolerability of the BI 3720931 doses based on occurrence of drug related AEs and serious adverse events (SAEs) up to Week 24
  5. Phase II: Evaluate efficacy of the BI 3720931 doses versus PBO on the absolute change from baseline in FEV1pp at Week 24

Conditions and MedDRA coding

Cystic fibrosis

VersionLevelCodeTermSystem organ class
20.0 PT 10011763 Cystic fibrosis lung 100000004850

Study design 10 periods

#TitleAllocationBlindingRoles blindedArms
1 Phase I: Screening
Phase I: Screening
Not Applicable None All participants: All participants
2 Phase II: End of Study
Phase II: End of Study
Randomised Controlled Double [{"id":130416,"code":4,"name":"Analyst"},{"id":130413,"code":3,"name":"Monitor"},{"id":130415,"code":1,"name":"Subject"},{"id":130417,"code":2,"name":"Investigator"},{"id":130414,"code":5,"name":"Carer"}] All participants: All participants
3 Phase I: Treatment
Phase I: Treatment
Not Applicable None Dose group 1: Dose group 1
Dose group 2: Dose group 2
Dose group 3: Dose group 3
4 Phase I: Hospital Stay
Phase I: Hospital Stay
Not Applicable None All participants: All participants
5 Phase I: Follow up
Phase I: Follow up
Not Applicable None All participants: All participants
6 Phase I: End of Study
Phase I: End of Study
Not Applicable None All participants: All participants
7 Phase II: Screening
An interim analysis of the safety and efficacy data from Phase I will be used for the decision making to move to Phase II.
Not Applicable None All participants: All participants
8 Phase II: Treatment
Phase II: Treatment
Randomised Controlled Double [{"id":130426,"code":1,"name":"Subject"},{"id":130427,"code":4,"name":"Analyst"},{"id":130428,"code":5,"name":"Carer"},{"id":130424,"code":2,"name":"Investigator"},{"id":130425,"code":3,"name":"Monitor"}] Dose group 1: Dose group 1
Dose group 2: Dose group 2
Placebo to BI 3720931: Placebo to BI 3720931
9 Phase II: Hospital Stay
Phase II: Hospital Stay
Randomised Controlled Double [{"id":130432,"code":4,"name":"Analyst"},{"id":130433,"code":5,"name":"Carer"},{"id":130430,"code":2,"name":"Investigator"},{"id":130431,"code":3,"name":"Monitor"},{"id":130434,"code":1,"name":"Subject"}] All participants: All participants
10 Phase II: Follow up
An interim analysis of the safety and efficacy data from Phase I will be used for the decision making to move to Phase II.
Randomised Controlled Double [{"id":130436,"code":2,"name":"Investigator"},{"id":130440,"code":1,"name":"Subject"},{"id":130439,"code":4,"name":"Analyst"},{"id":130438,"code":3,"name":"Monitor"},{"id":130437,"code":5,"name":"Carer"}] All participants: All participants

Regulatory references

Scientific advice from competent authorities
Paul-Ehrlich-Institut, Medicines Evaluation Board, Medicines And Healthcare Products Regulatory Agency, European Medicines Agency
Plan to share IPD
Yes
IPD plan description
Researchers can use the following link https://www.mystudywindow.com/msw/datasharing to request access to the clinical study documents regarding this study, and upon a signed “Document Sharing Agreement”. Furthermore, researchers can request access to the clinical study data, for this and other listed studies, after the submission of a research proposal and according to the terms outlined on the website. Time Frame: One year after the approval has been granted by major Regulatory Authorities and after the primary manuscript has been accepted for publication, or after termination of the development program. Access Criteria: For study documents – upon signing of a ‚Document Sharing Agreement‘. For study data – 1. after the submission and approval of the research proposal (checks will be performed by the sponsor and/or the independent review panel, including checking that the planned analysis does not compete with sponsor's publication plan); 2. and upon signing of a legal agreement.
EU CT numberTitleSponsor
2023-504909-37-00 A clinical trial to evaluate the long-term safety and durability of efficacy of BI 3720931, an inhaled lentiviral vector gene therapy, after single dose administration in a previous clinical trial in people with cystic fibrosis rolled-over from a previous clinical trial with BI 3720931 (LenticlairTM-ON). Boehringer Ingelheim International GmbH

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 7

  1. Male or female of non-childbearing potential trial participants with a CF-pulmonary phenotype and a confirmed diagnosis of CF: - Positive sweat chloride ≥60 mEq/L by pilocarpine iontophoresis OR - Genotype with 2 identifiable CF-causing mutations accompanied by one or more clinical features if sweat chloride testing is between 30 and 59 mmol/L
  2. Trial participants who are not eligible for treatment with CFTRmt due to their genotype with 2 identified CFTR-mutations (including Class I CFTR gene mutations) and are also not expected to become eligible during the trial according to investigator´s opinion
  3. Trial participants able to perform acceptable spirometric maneuvers according to American Thoracic Society/European Respiratory Society 2019 standards
  4. FEV1pp ≥50% and ≤100% of predicted normal at Visit 1. Predicted value based on Global Lung Initiative lung function reference equations
  5. Stable CF disease with no pulmonary exacerbation 4 weeks prior to the screening visit and during the screening period and stable drug- and non-drug therapy for CF in the 4 weeks prior to dosing
  6. Trial participants either naïve to prior gene therapy or exposed to prior viral or non-viral gene therapies for cystic fibrosis. If prior exposure to gene therapy for CF exists, then the following applies as per investigator judgement: a. No apparent residual side effects associated with prior gene therapy as per investigator assessment, and b. Drug-free interval of -- 6 months after last dose of prior non-viral gene therapy -- 24 months after last dose of prior viral gene therapy
  7. Further inclusion criteria apply.

Exclusion criteria 3

  1. Trial participants with ongoing or planned CFTRmt, or participants not eligible for CFTRmt based on contraindications (e.g. liver failure) or who needed to withdraw CFTRmt due to intolerability are not appropriate candidates for this Phase I/II trial
  2. Trial participants requiring chronic use of systemic corticosteroids or immunosuppressants to treat another condition
  3. Further exclusion criteria apply.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 2

  1. Phase I: Occurrence of any drug-related, treatment-emergent AE up to Week 24 after drug administration
  2. Phase II: Absolute change from baseline in FEV1pp at Week 8 after drug administration

Secondary endpoints 6

  1. Phase I: Occurrence of treatment response defined as change from baseline ≥5% in FEV1pp, comparing the mean of 3 pre-treatment FEV1pp measured in the screening period with the mean of 3 post treatment FEV1pp values at Weeks 4, 6, and 8
  2. Phase I: Absolute change from baseline in FEV1pp at Week 24 after drug administration
  3. Phase I: Occurrence of any DLTs up to Week 24 after drug administration
  4. Phase II: Absolute change from baseline in FEV1pp at Week 24 after drug administration
  5. Phase II: Occurrence of any SAEs up to Week 24 after drug administration
  6. Phase II: Occurrence of any drug-related, treatment-emergent AEs up to Week 24 after drug administration

Investigational products

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

Test 2

BI 3720931

PRD11013162 · Product

Active substance
BI 3720931
Pharmaceutical form
NEBULISER SOLUTION
Route of administration
INHALATION
Authorisation status
Not Authorised
MA holder
BOEHRINGER INGELHEIM INTERNATIONAL
Paediatric formulation
No
Orphan designation
No

BI 3720931

PRD11013211 · Product

Active substance
BI 3720931
Pharmaceutical form
NEBULISER SOLUTION
Route of administration
INHALATION
Authorisation status
Not Authorised
MA holder
BOEHRINGER INGELHEIM INTERNATIONAL
Paediatric formulation
No
Orphan designation
No

Placebo 1

Solvent for dilution for BI 3720931 inhaler solution

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

Auxiliary 1

Gadovist 1.0 mmol/ml solution for injection

PRD377690 · Product

Active substance
Gadobutrol
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRAVENOUS
Authorisation status
Authorised
ATC code
V08CA09 — GADOBUTROL
Marketing authorisation
PL 00010/0535
MA holder
BAYER PLC
MA country
XI
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Boehringer Ingelheim International GmbH

Sponsor organisation
Boehringer Ingelheim International GmbH
Address
Binger Strasse 173
City
Ingelheim Am Rhein
Postcode
55216
Country
Germany

Scientific contact point

Organisation
Boehringer Ingelheim International GmbH
Contact name
CT Disclosure & Data Transparency

Public contact point

Organisation
Boehringer Ingelheim International GmbH
Contact name
CT Disclosure & Data Transparency

Boehringer Ingelheim Espana S.A.

Sponsor organisation
Boehringer Ingelheim Espana S.A.
Address
Carrer Prat De La Riba 50, Sant Cugat Del Valles Sant Cugat Del Valles
City
Barcelona
Postcode
08174
Country
Spain

Scientific contact point

Organisation
Boehringer Ingelheim Espana S.A.
Contact name
CT Disclosure & Data Transparency

Public contact point

Organisation
Boehringer Ingelheim Espana S.A.
Contact name
CT Disclosure & Data Transparency

Sponsor responsibilities

Article 77 compliance
Boehringer Ingelheim International GmbH
Contact point sponsor
Boehringer Ingelheim International GmbH
Article 77 implementation
Boehringer Ingelheim International GmbH

Locations

4 EU/EEA countries · 6 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Ended 4 2
Italy Ended 4 2
Netherlands Ended 2 1
Spain Ended 2 1
Rest of world
United Kingdom
15

Investigational sites

France

2 sites · Ended
Centre Hospitalier Universitaire De Montpellier
Centre d'Investigation Clinique, 80 Avenue Augustin Fliche, 34295, Montpellier Cedex 5
Hopital Necker Enfants Malades
Centre d'Investigation Clinique, 149 Rue De Sevres, 75015, Paris

Italy

2 sites · Ended
Giannina Gaslini Institute For Scientific Hospitalization And Care
Centro Fibrosi Cistica, Via Gerolamo Gaslini 5, 16147, Genoa
Bambino Gesu Childrens Hospital
Pneumology and Cystic Fibrosis Unit, Piazza Sant'onofrio 4, 00165, Rome

Netherlands

1 site · Ended
Universitair Medisch Centrum Utrecht
Department of Pulmonology and Tuberculosis, Heidelberglaan 100, 3584 CX, Utrecht

Spain

1 site · Ended
Vall D'hebron Institut De Recerca
Servicio de Neumología, Passeig De La Vall D'hebron 119-129, 08035, 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 2025-01-07 2025-01-09 2025-07-31
Italy 2024-12-19 2025-02-06 2025-07-31
Netherlands 2025-01-07 2025-04-10 2025-07-31
Spain 2025-02-25 2025-03-27 2025-07-31

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Temporary halts 4 · Art. 38 CTR

Temporary halt TH-124221

Halt date
2025-07-31
Planned restart
2026-03-20
Member states concerned
Netherlands
Publication date
2026-03-19
Reason
Sponsor decision
Follow-up measures
In accordance with Article 38 of the Regulation (EU) 536/2014 on clinical trials on medicinal products for human use, Boehringer Ingelheim will submit a substantial modification to the Clinical Trial Protocol, and the trial will only be restarted once this substantial modification of the CTP has received regulatory and ethics approval.
Benefit-risk balance changed
Yes
Treatment stopped
No

Temporary halt TH-94132

Halt date
2025-07-31
Planned restart
2026-02-17
Member states concerned
France
Publication date
2026-03-19
Reason
Sponsor decision
Follow-up measures
In accordance with Article 38 of the Regulation (EU) 536/2014 on clinical trials on medicinal products for human use, Boehringer Ingelheim will submit a substantial modification to the Clinical Trial Protocol, and the trial will only be restarted once this substantial modification of the CTP has received regulatory and ethics approval.
Benefit-risk balance changed
Yes
Treatment stopped
No

Temporary halt TH-94134

Halt date
2025-07-31
Planned restart
2026-02-17
Member states concerned
Italy
Publication date
2026-03-19
Reason
Sponsor decision
Follow-up measures
In accordance with Article 38 of the Regulation (EU) 536/2014 on clinical trials on medicinal products for human use, Boehringer Ingelheim will submit a substantial modification to the Clinical Trial Protocol, and the trial will only be restarted once this substantial modification of the CTP has received regulatory and ethics approval.
Benefit-risk balance changed
Yes
Treatment stopped
No

Temporary halt TH-94136

Halt date
2025-07-31
Planned restart
2026-02-17
Member states concerned
Spain
Publication date
2026-03-19
Reason
Sponsor decision
Follow-up measures
In accordance with Article 38 of the Regulation (EU) 536/2014 on clinical trials on medicinal products for human use, Boehringer Ingelheim will submit a substantial modification to the Clinical Trial Protocol, and the trial will only be restarted once this substantial modification of the CTP has received regulatory and ethics approval.
Benefit-risk balance changed
Yes
Treatment stopped
No

Corrective measures 1 · Art. 77 CTR

Corrective measure CM-IT-0001

Member state
Italy
Publication date
2025-07-29
Type
1
Reason
6
Reverted date
2025-07-29
Immediate action required
Yes
Notes
Reverted (2025-07-29)
Justification
Dear Applicant,
Considering the expiration of the three-year mandate of the members of the National Ethics Committee (CEN) for clinical trials relating to advanced therapies (“ATMP”) and of the National Ethics Committee (CEN) for clinical trials in the pediatric field, appointed by Decree of the Minister of Health - 2 March 2022;
Considering the fact that, due to the expiration of the mandate of the members of the aforementioned National Ethics Committee (CEN), for the procedure in subject the assessment of the aspects relating to Part II of the evaluation report pursuant to art. 7 of the aforementioned Regulation (EU) No. 536/2014 has not been carried out, and as a result there is no conclusion of Part II for the EU CT 2023-503281-23-00 procedure (AIFA authorization provision n° 0081249);
In compliance with CHAPTER XIII (SUPERVISION BY MEMBER STATES, UNION INSPECTIONS AND CONTROLS) of Regulation 536/2014 with specific reference to Article 77 (Corrective measures to be taken by Member States):
1. Where a Member State concerned has justified grounds for considering that the requirements set out in this Regulation are no longer met, it may take the following measures on its territory:
(a) revoke the authorisation of a clinical trial;
(b) suspend a clinical trial;
(c) require the sponsor to modify any aspect of the clinical trial.
A corrective measure is applied suspending the trial. This corrective measure is only applicable to Italy.

Results and documents

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

Documents 57 files

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

TypeTitleVersion
Protocol (for publication) D1_ Protocol local amendment-1-2023-503281-23-00-public 1
Protocol (for publication) D1_Protocol 2023-503281-23-00-public 2
Protocol (for publication) d1_protocol-local-amendment-2-2023-503281-23-00-public 1
Protocol (for publication) D4_ Patient facing documents-cfq-r-questionnaire-ES-spa 1
Protocol (for publication) D4_ Patient facing documents-cfq-r-questionnaire-FR-fre 1
Protocol (for publication) D4_ Patient facing documents-cfq-r-questionnaire-IT-ita 1
Protocol (for publication) D4_ Patient facing documents-eng-handheld-screenshots 1
Protocol (for publication) D4_ Patient facing documents-eng-worksheet-cfq 1
Protocol (for publication) D4_ Patient facing documents-eng-worksheet-eq-5d-5l 1
Protocol (for publication) D4_ Patient facing documents-eng-worksheet-wpai-gh 1
Protocol (for publication) D4_ Patient facing documents-eq-5d-5l-questionnaire-ES-spa 1
Protocol (for publication) D4_ Patient facing documents-eq-5d-5l-questionnaire-FR-fre 1
Protocol (for publication) D4_ Patient facing documents-eq-5d-5l-questionnaire-IT-ita 1
Protocol (for publication) D4_ Patient facing documents-wpai-gh-questionnaire-ES-spa 1
Protocol (for publication) D4_ Patient facing documents-wpai-gh-questionnaire-FR-fre 1
Protocol (for publication) D4_ Patient facing documents-wpai-gh-questionnaire-IT-ita 1
Protocol (for publication) d4_patient-facing-documents-eng-infographic-dosing-public 1
Protocol (for publication) d4_patient-facing-documents-eng-infographic-mechanism-action-public 1
Protocol (for publication) d4_patient-facing-documents-eng-infographic-safety-monitoring-public 1
Recruitment arrangements (for publication) K1_ Recruitment arrangements 1
Recruitment arrangements (for publication) K1_ Recruitment arrangements-additional-doc-FR-fre-public 1
Recruitment arrangements (for publication) K1_ Recruitment arrangements-ES-public 1
Recruitment arrangements (for publication) K1_ Recruitment arrangements-FR-fre 2
Recruitment arrangements (for publication) K1_ Recruitment arrangements-NL 1
Subject information and informed consent form (for publication) L1_ ICF-biobanking-ES 02
Subject information and informed consent form (for publication) L1_ ICF-biobanking-FR-fre-public 1-3
Subject information and informed consent form (for publication) L1_ ICF-biobanking-IT-public 2
Subject information and informed consent form (for publication) L1_ ICF-biobanking-NL-dut 3
Subject information and informed consent form (for publication) L1_ ICF-patient-reimbursement-ES-public 4
Subject information and informed consent form (for publication) L1_ ICF-ph-1-ES-public 4-1
Subject information and informed consent form (for publication) L1_ ICF-ph-1-FR-fre-public 4-1
Subject information and informed consent form (for publication) L1_ ICF-ph-1-IT-public 4-1
Subject information and informed consent form (for publication) L1_ ICF-ph-1-NL-public 4-2
Subject information and informed consent form (for publication) L1_ ICF-ph-2-ES-public 4-1
Subject information and informed consent form (for publication) L1_ ICF-ph-2-FR-fre-public 4-1
Subject information and informed consent form (for publication) L1_ ICF-ph-2-IT-public 4-1
Subject information and informed consent form (for publication) L1_ ICF-ph-2-NL-public 4-2
Subject information and informed consent form (for publication) L1_ ICF-pregnant-partner-ES 1
Subject information and informed consent form (for publication) L1_ ICF-pregnant-partner-FR-fre-public 1-3
Subject information and informed consent form (for publication) L1_ ICF-pregnant-partner-IT 2
Subject information and informed consent form (for publication) L1_ ICF-pregnant-partner-NL-dut 2
Subject information and informed consent form (for publication) L1_ ICF-reimbursement-privacy-policy-ES-public 2
Subject information and informed consent form (for publication) L1_ ICF-vital-signs-NL-dut 2
Subject information and informed consent form (for publication) L1_ ICF-vital-status 2-3
Subject information and informed consent form (for publication) L1_ ICF-vital-status-ES 1
Subject information and informed consent form (for publication) L1_ ICF-vital-status-IT 2
Subject information and informed consent form (for publication) L2_ Other subject information material-gp-letter-IT-public 3
Subject information and informed consent form (for publication) L2_ Other subject information material-infographic-NL-public 1
Subject information and informed consent form (for publication) L2_ Other subject information material-infographics-doc-IT-public 1
Subject information and informed consent form (for publication) L2_ Other subject information material-infographics-ES-public 1
Subject information and informed consent form (for publication) L2_ Other subject information material-infographics-FR-fre-public 2
Synopsis of the protocol (for publication) D1_ Protocol summary-local-IT-2023-503281-23-00-public 3
Synopsis of the protocol (for publication) D1_ Protocol synopsis-eng-2023-503281-23-00-public 2
Synopsis of the protocol (for publication) D1_ Protocol synopsis-ES-spanish-2023-503281-23-00-public 2
Synopsis of the protocol (for publication) D1_ Protocol synopsis-FR-french-2023-503281-23-00-public 2
Synopsis of the protocol (for publication) D1_ Protocol synopsis-IT-italian-2023-503281-23-00-public 2
Synopsis of the protocol (for publication) D1_ Protocol synopsis-NL-dutch-2023-503281-23-00-public 2

Application history

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

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-01-31 Netherlands Acceptable with conditions
2024-06-17
2024-06-17
2 SUBSTANTIAL MODIFICATION SM-1 2024-07-04 Netherlands Acceptable
2024-10-14
2024-10-15
3 SUBSTANTIAL MODIFICATION SM-2 2024-11-27 Netherlands Acceptable
2025-03-17
2025-03-17
4 SUBSTANTIAL MODIFICATION SM-3 2025-05-05 Netherlands Acceptable
2025-06-17
2025-06-18