Trial Outcomes & Findings for Continuation of TRAVERSE- LTS12551 Evaluating Dupilumab Safety in Patients With Asthma (Long-Term Follow-Up) (NCT NCT03620747)

NCT ID: NCT03620747

Last Updated: 2023-03-16

Results Overview

An adverse event (AE) was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily had to have a causal relationship with the treatment. TEAEs were the AEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the investigational medicinal product \[IMP\] up to 12 weeks after the last dose of the IMP).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

393 participants

Primary outcome timeframe

From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)

Results posted on

2023-03-16

Participant Flow

The study was conducted at 138 sites in 10 countries. A total of 393 participants were enrolled in the study between 30 August 2018 and 27 August 2020.

Participants with moderate to severe asthma who had completed the parent study TRAVERSE-LTS12551 (NCT02134028) were enrolled in this current study (LPS15023).

Participant milestones

Participant milestones
Measure
Dupilumab
Participants received subcutaneous (SC) dose of dupilumab 300 milligrams (mg) every 2 weeks (q2w) from Week 0 up to Week 132. Participants who discontinued treatment for greater than or equal to \[\>=\] 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose inhaled corticosteroid (ICS) as maintained in study LTS12551 in combination with controllers (and/or oral corticosteroid \[OCS\] for those participants from the original parent study EFC13691 \[NCT02528214\]). Salbutamol/albuterol hydrofluoroalkane pressurized metered dose inhalers (MDI) or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Overall Study
STARTED
393
Overall Study
COMPLETED
374
Overall Study
NOT COMPLETED
19

Reasons for withdrawal

Reasons for withdrawal
Measure
Dupilumab
Participants received subcutaneous (SC) dose of dupilumab 300 milligrams (mg) every 2 weeks (q2w) from Week 0 up to Week 132. Participants who discontinued treatment for greater than or equal to \[\>=\] 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose inhaled corticosteroid (ICS) as maintained in study LTS12551 in combination with controllers (and/or oral corticosteroid \[OCS\] for those participants from the original parent study EFC13691 \[NCT02528214\]). Salbutamol/albuterol hydrofluoroalkane pressurized metered dose inhalers (MDI) or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Overall Study
Participant decision
7
Overall Study
Adverse Event
6
Overall Study
Lack of Efficacy
1
Overall Study
Poor compliance to protocol
2
Overall Study
Other-unspecified
3

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Dupilumab
n=393 Participants
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Age, Continuous
52.1 years
STANDARD_DEVIATION 14.19 • n=393 Participants
Sex: Female, Male
Female
231 Participants
n=393 Participants
Sex: Female, Male
Male
162 Participants
n=393 Participants

PRIMARY outcome

Timeframe: From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)

Population: Analysis was performed on safety population that included all participants who had actually received at least one dose or part of a dose of IMP.

An adverse event (AE) was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily had to have a causal relationship with the treatment. TEAEs were the AEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the investigational medicinal product \[IMP\] up to 12 weeks after the last dose of the IMP).

Outcome measures

Outcome measures
Measure
Dupilumab
n=393 Participants
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs)
54.5 percentage of participants
Interval 47.4 to 62.26

PRIMARY outcome

Timeframe: From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)

Population: Analysis was performed on safety population.

An AE was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily had to have a causal relationship with the treatment. TEAEs were the AEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). TEAE event rate was defined as the number of TEAE events per 100 participant-years.

Outcome measures

Outcome measures
Measure
Dupilumab
n=393 Participants
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Treatment-emergent Adverse Event Rate (Event Per 100 Participant-years)
171.4 events per 100 participant-years
Interval 162.71 to 180.43

SECONDARY outcome

Timeframe: From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)

Population: Analysis was performed on safety population.

An AE was defined as any untoward medical occurrence in a participant who received study drug and did not necessarily had to have a causal relationship with the treatment. AESIs were AE (serious or non-serious) of scientific and medical concern specific to the Sponsor's product or program, for which ongoing monitoring and immediate notification by the investigator to the Sponsor was required. AESI event rate was defined as the number of AESI events per 100 participant-years.

Outcome measures

Outcome measures
Measure
Dupilumab
n=393 Participants
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Adverse Events of Special Interest (AESIs) Event Rate (Event Per100 Participant-years)
6.0 events per 100 participant-years
Interval 4.4 to 7.99

SECONDARY outcome

Timeframe: From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)

Population: Analysis was performed on safety population.

AE: any untoward medical occurrence in participants that received IMP and did not necessarily had to have causal relationship with treatment. TEAEs: AEs developed/worsened in grade/become serious during the TEAE period (from first dose of IMP up to 12 weeks after last dose of IMP).SAE: any untoward medical occurrence at any dose resulted in death, was life-threatening, required inpatient hospitalization, prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was congenital anomaly/birth defect or was medically important event. AESI: AE (serious/non-serious) of scientific and medical concern specific to Sponsor's product/program, for which ongoing monitoring and immediate notification by Investigator to Sponsor required.

Outcome measures

Outcome measures
Measure
Dupilumab
n=393 Participants
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Percentage of Participants With Treatment-emergent Serious Adverse Events (TESAEs), Adverse Events of Special Interest (AESIs) and AEs Leading to Study Discontinuation
TESAEs
5.6 percentage of participants
Percentage of Participants With Treatment-emergent Serious Adverse Events (TESAEs), Adverse Events of Special Interest (AESIs) and AEs Leading to Study Discontinuation
AESIs
6.1 percentage of participants
Percentage of Participants With Treatment-emergent Serious Adverse Events (TESAEs), Adverse Events of Special Interest (AESIs) and AEs Leading to Study Discontinuation
AEs leading to study discontinuation
1.5 percentage of participants

Adverse Events

Dupilumab

Serious events: 22 serious events
Other events: 93 other events
Deaths: 5 deaths

Serious adverse events

Serious adverse events
Measure
Dupilumab
n=393 participants at risk
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Cardiac disorders
Cardiac failure congestive
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Cardiac disorders
Myocardial infarction
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Nervous system disorders
Epilepsy
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Nervous system disorders
Pudendal canal syndrome
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Eye disorders
Cataract
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Respiratory, thoracic and mediastinal disorders
Asthma
1.0%
4/393 • Number of events 5 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Respiratory, thoracic and mediastinal disorders
Respiratory failure
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Respiratory, thoracic and mediastinal disorders
Tracheal stenosis
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Gastrointestinal disorders
Abdominal pain
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Gastrointestinal disorders
Enterovesical fistula
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Gastrointestinal disorders
Hiatus hernia
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Gastrointestinal disorders
Pancreatitis
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
Bronchitis
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
COVID-19
0.76%
3/393 • Number of events 3 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
COVID-19 pneumonia
0.76%
3/393 • Number of events 3 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
Pneumonia
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
Urinary tract infection
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
General disorders
Non-cardiac chest pain
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Pregnancy, puerperium and perinatal conditions
Abortion spontaneous
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Immune system disorders
Anaphylactic reaction
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Hepatobiliary disorders
Cholecystitis
0.25%
1/393 • Number of events 1 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.

Other adverse events

Other adverse events
Measure
Dupilumab
n=393 participants at risk
Participants received SC dose of dupilumab 300 mg q2w from Week 0 up to Week 132. Participants who discontinued treatment for \>= 6 weeks after study LTS12551, received a 600 mg loading dose of dupilumab on Week 0. Participants were also on background dose of medium or high dose ICS as maintained in study LTS12551 in combination with controllers (and/or OCS for those participants from the original parent study EFC13691). Salbutamol/albuterol hydrofluoroalkane pressurized MDI or levosalbutamol/levalbuterol hydrofluoroalkane pressurized MDI were given as reliever medication as needed during the study.
Respiratory, thoracic and mediastinal disorders
Asthma
13.2%
52/393 • Number of events 77 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
COVID-19
5.6%
22/393 • Number of events 24 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.
Infections and infestations
Nasopharyngitis
8.4%
33/393 • Number of events 36 • From first dose of IMP up to 12 weeks after last dose of IMP (maximum duration: up to 144 Weeks)
Reported AEs and deaths were TEAEs that developed or worsened or became serious during the TEAE period (defined as the time from the first dose of the IMP up to 12 weeks after last dose of the IMP). Analysis was performed on safety population.

Additional Information

Trial Transparency Team

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Phone: 800-633-1610

Results disclosure agreements

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