Trial Outcomes & Findings for Study of LAU-7b in the Treatment of Cystic Fibrosis in Adults (NCT NCT03265288)

NCT ID: NCT03265288

Last Updated: 2024-10-09

Results Overview

Standardized, serial FEV1 measurements were performed during the trial by the clinical sites using standardized spirometers. All spirometry measurements were centrally read and validated by the spirometry provider, Vitalograph. The outcome measure is presented using the Least Squares Mean at the Week 24 time point and the Least Squares Mean of all post-baseline time points through Week 24 averaged.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

166 participants

Primary outcome timeframe

From baseline to 24 weeks

Results posted on

2024-10-09

Participant Flow

Participant milestones

Participant milestones
Measure
LAU-7b
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Overall Study
STARTED
83
83
Overall Study
COMPLETED
60
71
Overall Study
NOT COMPLETED
23
12

Reasons for withdrawal

Reasons for withdrawal
Measure
LAU-7b
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Overall Study
Adverse Event
0
1
Overall Study
Withdrawal by Subject
13
5
Overall Study
Drug Withdrawn
3
3
Overall Study
Any Other Reason
7
3

Baseline Characteristics

Study of LAU-7b in the Treatment of Cystic Fibrosis in Adults

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Total
n=166 Participants
Total of all reporting groups
Age, Continuous
31.5 years
STANDARD_DEVIATION 10.70 • n=5 Participants
33.9 years
STANDARD_DEVIATION 12.95 • n=7 Participants
32.7 years
STANDARD_DEVIATION 11.90 • n=5 Participants
Age, Customized
<=25 years
29 Participants
n=5 Participants
26 Participants
n=7 Participants
55 Participants
n=5 Participants
Age, Customized
>25 years
54 Participants
n=5 Participants
57 Participants
n=7 Participants
111 Participants
n=5 Participants
Sex: Female, Male
Female
50 Participants
n=5 Participants
49 Participants
n=7 Participants
99 Participants
n=5 Participants
Sex: Female, Male
Male
33 Participants
n=5 Participants
34 Participants
n=7 Participants
67 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
n=5 Participants
2 Participants
n=7 Participants
9 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
76 Participants
n=5 Participants
81 Participants
n=7 Participants
157 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
White
81 Participants
n=5 Participants
78 Participants
n=7 Participants
159 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Region of Enrollment
Canada
24 participants
n=5 Participants
22 participants
n=7 Participants
46 participants
n=5 Participants
Region of Enrollment
United States
48 participants
n=5 Participants
51 participants
n=7 Participants
99 participants
n=5 Participants
Region of Enrollment
Australia
11 participants
n=5 Participants
10 participants
n=7 Participants
21 participants
n=5 Participants
Weight (kg), Mean (SD)
63.88 kg
STANDARD_DEVIATION 12.213 • n=5 Participants
64.53 kg
STANDARD_DEVIATION 14.329 • n=7 Participants
64.20 kg
STANDARD_DEVIATION 13.277 • n=5 Participants
BMI (kg/m2), Mean (SD)
23.34 kg/m2
STANDARD_DEVIATION 3.354 • n=5 Participants
23.39 kg/m2
STANDARD_DEVIATION 4.099 • n=7 Participants
23.36 kg/m2
STANDARD_DEVIATION 3.734 • n=5 Participants
Number of PEx in the previous year, (Mean (SD)
2.3 Pulmonary Exacerbation
STANDARD_DEVIATION 1.77 • n=5 Participants
2.1 Pulmonary Exacerbation
STANDARD_DEVIATION 1.54 • n=7 Participants
2.2 Pulmonary Exacerbation
STANDARD_DEVIATION 1.65 • n=5 Participants
FEV1 percent predicted at Baseline
63.2 percent predicted
STANDARD_DEVIATION 16.77 • n=5 Participants
62.3 percent predicted
STANDARD_DEVIATION 15.13 • n=7 Participants
62.73 percent predicted
STANDARD_DEVIATION 15.93 • n=5 Participants

PRIMARY outcome

Timeframe: From baseline to 24 weeks

Population: intent to treat population (ITT) and per-protocol population (PP)

Standardized, serial FEV1 measurements were performed during the trial by the clinical sites using standardized spirometers. All spirometry measurements were centrally read and validated by the spirometry provider, Vitalograph. The outcome measure is presented using the Least Squares Mean at the Week 24 time point and the Least Squares Mean of all post-baseline time points through Week 24 averaged.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1%)
PP population through Week 24
-0.3374 Change in FEV1 % predicted
Interval -1.4987 to 0.8239
-1.5632 Change in FEV1 % predicted
Interval -2.7333 to -0.393
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1%)
ITT population at Week 24
-1.1774 Change in FEV1 % predicted
Interval -2.5038 to 0.149
-1.9489 Change in FEV1 % predicted
Interval -3.2241 to -0.6738
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1%)
ITT population through Week 24
-0.5417 Change in FEV1 % predicted
Interval -1.5226 to 0.4392
-1.5470 Change in FEV1 % predicted
Interval -2.5304 to -0.5637
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1%)
ITT subgroup >=70% ppFEV1, at Week 24
-1.4059 Change in FEV1 % predicted
Interval -3.5506 to 0.7388
-4.0687 Change in FEV1 % predicted
Interval -6.1289 to -2.0085
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1%)
ITT subgroup on CFTR modulators, at Week 24
-0.3336 Change in FEV1 % predicted
Interval -2.2467 to 1.5795
-1.7247 Change in FEV1 % predicted
Interval -3.2954 to -0.1539
Absolute Change in Percent Predicted Forced Expiratory Volume in 1 Second (FEV1%)
ITT subgroup on ETI, at Week 24
-0.7406 Change in FEV1 % predicted
Interval -3.7472 to 2.2659
-1.8709 Change in FEV1 % predicted
Interval -4.1669 to 0.4252

PRIMARY outcome

Timeframe: From Baseline to 28 weeks

Population: safety population

This was assessed through adverse event monitoring at all visits, including spontaneously reported events and those obtained through serial probing of the subjects, and from safety laboratory tests

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Subjects with at least one TEAE with ≥10% incidence
74 Participants
64 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Mild highest reported severity
22 Participants
27 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Moderate highest reported severity
45 Participants
43 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Severe highest reported severity
13 Participants
7 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Life threatening
0 Participants
0 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Infective pulmonary exacerbation of cystic fibrosis
37 Participants
32 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Cough
23 Participants
24 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Delayed dark adaptation
22 Participants
4 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Night blindness
15 Participants
2 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Headache
14 Participants
10 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Upper respiratory tract infections
13 Participants
8 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Hemoptysis
11 Participants
13 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Diarrhoea
11 Participants
6 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Fatigue
10 Participants
7 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Delayed light adaptation
10 Participants
2 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Dyspnea
10 Participants
11 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Glare
9 Participants
6 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Visual impairment
9 Participants
2 Participants
Summary of Treatment Emergent Adverse Events With ≥ 10% Incidence
Sputum increased
7 Participants
13 Participants

SECONDARY outcome

Timeframe: From baseline to 28 weeks

Population: Intent to treat population with analytical results at any sampling visit up to 28 weeks

Assessed through 4 blood sampling occasions during the trial. Plasma samples were analyzed using a validated LC/MS method and corrected for phospholipid content. Highest proportion of normalization during treatment was determined versus analyte ranges obtained from a group of 20 healthy, non-CF individuals.

Outcome measures

Outcome measures
Measure
LAU-7b
n=58 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=61 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Proportion of Patients Achieving Normalization of the Arachidonic Acid, Docosahexaenoic Acid and Their Ratio in Phospholipids
Arachidonic acid (AA) normalization
15 Participants
25 Participants
The Proportion of Patients Achieving Normalization of the Arachidonic Acid, Docosahexaenoic Acid and Their Ratio in Phospholipids
Docosahexaenoic acid (DHA) normalization
16 Participants
18 Participants
The Proportion of Patients Achieving Normalization of the Arachidonic Acid, Docosahexaenoic Acid and Their Ratio in Phospholipids
AA/DHA ratio normalization
25 Participants
23 Participants

SECONDARY outcome

Timeframe: From baseline to 3, 7, 11, 15, 24 and 28 weeks into the trial

Population: Intent to treat population (ITT)

Standardized, serial FEV1 measurements were performed during the trial by the clinical sites using standardized spirometers. All spirometry measurements were centrally read and validated by the spirometry provider, Vitalograph.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Absolute Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Absolute change at Week 7
0.280 FEV1 percent predicted change
Standard Deviation 4.689
-0.888 FEV1 percent predicted change
Standard Deviation 3.968
The Absolute Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Absolute change at Week 11
-0.309 FEV1 percent predicted change
Standard Deviation 4.268
-0.871 FEV1 percent predicted change
Standard Deviation 4.133
The Absolute Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Absolute change at Week 3
-0.243 FEV1 percent predicted change
Standard Deviation 5.110
-1.494 FEV1 percent predicted change
Standard Deviation 4.537
The Absolute Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Absolute change at Week 15
-0.508 FEV1 percent predicted change
Standard Deviation 5.100
-1.591 FEV1 percent predicted change
Standard Deviation 4.389
The Absolute Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Absolute change at Week 24
-1.024 FEV1 percent predicted change
Standard Deviation 4.286
-1.759 FEV1 percent predicted change
Standard Deviation 4.533
The Absolute Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Absolute change at Week 28
-1.539 FEV1 percent predicted change
Standard Deviation 4.808
-1.413 FEV1 percent predicted change
Standard Deviation 4.457

SECONDARY outcome

Timeframe: From baseline to 3, 7, 11, 15, 24 and 28 weeks into the trial

Population: Intent to treat population (ITT)

Standardized, serial FEV1 measurements were performed during the trial by the clinical sites using standardized spirometers. All spirometry measurements were centrally read and validated by the spirometry provider, Vitalograph.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Relative (%) Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Relative (%) change at Week 28
-2.388 FEV1 percent predicted change
Standard Deviation 8.275
-2.085 FEV1 percent predicted change
Standard Deviation 7.525
The Relative (%) Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Relative (%) change at Week 3
-1.188 FEV1 percent predicted change
Standard Deviation 8.632
-2.341 FEV1 percent predicted change
Standard Deviation 7.289
The Relative (%) Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Relative (%) change at Week 7
0.561 FEV1 percent predicted change
Standard Deviation 8.348
-1.550 FEV1 percent predicted change
Standard Deviation 6.829
The Relative (%) Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Relative (%) change at Week 11
-0.213 FEV1 percent predicted change
Standard Deviation 7.124
-1.277 FEV1 percent predicted change
Standard Deviation 7.120
The Relative (%) Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Relative (%) change at Week 15
-0.924 FEV1 percent predicted change
Standard Deviation 8.963
-2.745 FEV1 percent predicted change
Standard Deviation 7.425
The Relative (%) Change in FEV1 Percent Predicted at 3, 7, 11, 15, 24 and 28 Weeks Into the Trial
Relative (%) change at Week 24
-1.450 FEV1 percent predicted change
Standard Deviation 6.966
-2.652 FEV1 percent predicted change
Standard Deviation 7.742

SECONDARY outcome

Timeframe: From baseline to 28 weeks

Reports of IV antibiotics-treated pulmonary exacerbations during the trial that meet the Fuch's criteria and after the first treatment cycle.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Time to First Protocol-Defined Pulmonary Exacerbation
NA days
Insufficient number of participants with events
NA days
Insufficient number of participants with events

SECONDARY outcome

Timeframe: From baseline to 28 weeks

The number per subject of Protocol-Defined IV antibiotics-treated pulmonary exacerbations (events) during the trial that meet the Fuch's criteria. Also presented are the number per subject of IV antibiotics-treated pulmonary exacerbations and combined number per subject of IV- or Oral antibiotics-treated pulmonary exacerbations during the trial. Excluded are exacerbations occurring during the first treatment cycle.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Number Per Subject of Protocol-Defined Pulmonary Exacerbations (PEx) During the Trial
Protocol-Defined IV-treated PEx events per subject
0.16 Events per subject
Standard Deviation 0.398
0.10 Events per subject
Standard Deviation 0.335
The Number Per Subject of Protocol-Defined Pulmonary Exacerbations (PEx) During the Trial
All IV-treated PEx events per subject
0.24 Events per subject
Standard Deviation 0.458
0.18 Events per subject
Standard Deviation 0.566
The Number Per Subject of Protocol-Defined Pulmonary Exacerbations (PEx) During the Trial
All IV- or Oral antibiotics-treated PEx events per subject
0.53 Events per subject
Standard Deviation 0.721
0.47 Events per subject
Standard Deviation 0.817

SECONDARY outcome

Timeframe: From baseline to 28 weeks

The time to first change and usage of IV antibiotics to treat pulmonary exacerbations during the trial. Excluded are exacerbations occurring during the first treatment cycle.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Time to First Change and Usage of Antibiotic (Other Than Chronic Inhaled Antibiotics Already Started Prior to Trial or Oral Chronic Azithromycin)
NA days
Insufficient number of participants with events
NA days
Insufficient number of participants with events

SECONDARY outcome

Timeframe: From baseline to 28 weeks

Usage (number of antibiotic treatments per subject) of IV antibiotics to treat pulmonary exacerbations during the trial. Excluded are exacerbations occurring during the first treatment cycle.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Usage (Number of Antibiotic Treatments) of Antibiotic (Other Than Chronic Inhaled Antibiotics Already Started Prior to Trial or Oral Chronic Azithromycin)
0.53 Number of IV antibiotic treatments
Standard Deviation 1.09
0.41 Number of IV antibiotic treatments
Standard Deviation 1.32

SECONDARY outcome

Timeframe: From baseline to 28 weeks

Usage (days) of IV antibiotics to treat pulmonary exacerbations during the trial. Excluded are exacerbations occurring during the first treatment cycle.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Usage (Days) of Antibiotic (Other Than Chronic Inhaled Antibiotics Already Started Prior to Trial or Oral Chronic Azithromycin)
3.8 Days of IV antibiotics
Standard Deviation 7.50
3.5 Days of IV antibiotics
Standard Deviation 14.94

SECONDARY outcome

Timeframe: Change from baseline to Week 24

Population: Intent to treat population (ITT) and per-protocol population (PP)

This was assessed through scheduled blood sampling during the trial on three occasions. Both ITT and PP populations results presented. Samples were analyzed using validated analytical methods.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Change From Baseline of Systemic Markers of Inflammation in Blood
Absolute change from baseline of calprotectin at Week 24, ITT population
-27 Change in mg/L
Standard Deviation 962
478 Change in mg/L
Standard Deviation 2088
The Change From Baseline of Systemic Markers of Inflammation in Blood
Absolute change from baseline of C-reactive protein at Week 24 ITT Population
-1.197 Change in mg/L
Standard Deviation 7.904
2.532 Change in mg/L
Standard Deviation 10.650
The Change From Baseline of Systemic Markers of Inflammation in Blood
Absolute change from baseline of C-reactive protein at Week 24 PP Population
-1.216 Change in mg/L
Standard Deviation 7.987
2.532 Change in mg/L
Standard Deviation 10.654
The Change From Baseline of Systemic Markers of Inflammation in Blood
Absolute change from baseline of calprotectin at Week 24, PP population
-18 Change in mg/L
Standard Deviation 970
478 Change in mg/L
Standard Deviation 2088

SECONDARY outcome

Timeframe: From screening to 28 weeks

This was assessed through serial weighing during the trial. Measurements performed at clinical sites using calibrated balances.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Change From Screening of the Body Weight
-0.43 Change in kg
Standard Deviation 2.41
0.14 Change in kg
Standard Deviation 1.96

SECONDARY outcome

Timeframe: From screening to 28 weeks

Population: Intent to treat (ITT)

This was assessed through serial weighing during the trial and calculation of BMI. Measurements performed at clinical sites using calibrated balances.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Change From Screening of the Body Mass Index (BMI)
-0.162 Change in kg/m2
Standard Deviation 0.922
0.037 Change in kg/m2
Standard Deviation 0.706

SECONDARY outcome

Timeframe: From screening to Week 24

Population: Intent to treat population (ITT) with samples at screening and post-screening timepoints, and at sites able to obtain sputum samples

This was assessed through induced sputum (and spontaneously obtained during COVID-19 pandemic) on 3 occasions during the trial. Samples were analyzed at a central laboratory. An area under the curve (AUC from baseline to Week 24 inclusive) of colony forming unit/mL is calculated.

Outcome measures

Outcome measures
Measure
LAU-7b
n=26 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=31 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Overall Change From Screening of the Pseudomonas Aeruginosa Density (Colony Forming Units) in the Sputum
17681448107 CFU*weeks/mL
Standard Deviation 33050105775
10218800226 CFU*weeks/mL
Standard Deviation 16808101968

SECONDARY outcome

Timeframe: From baseline to 24 weeks

Population: Absolute change of CFQ-R Respiratory sub-score, from Baseline to Week 24. Intent to treat population (ITT)

This was assessed through administration of the Cystic Fibrosis Questionnaire-Revised (CFQ-R) at four planned times during the trial. The CFQ-R respiratory sub-score (range 0-100) was extracted and analyzed. The Minimum Clinically Important Difference (MCID) for the respiratory sub-score is 4 units. A higher score means a better outcome.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Impact (From Baseline) on Overall Health, Daily Life, Perceived Well-being and Symptoms Measured With the Cystic Fibrosis Questionnaire-Revised (CFQ-R)
-2.485 Change of units on a scale
Standard Deviation 20.28
0.235 Change of units on a scale
Standard Deviation 11.44

SECONDARY outcome

Timeframe: From baseline to 24 weeks

Population: Absolute change from Baseline at Week 24. Intent to treat population (ITT) in subjects with samples analyzed at baseline and at Week 24

This was assessed through serial blood sampling during the trial. Samples were analyzed using validated methods at specialized laboratories.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
11-Hydroxy Eicosatetraenoic Acid
-0.0195 umol/L
Standard Deviation 0.13559
0.0187 umol/L
Standard Deviation 0.08397
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
12-Hydroxy Eicosatetraenoic Acid
-0.00445 umol/L
Standard Deviation 0.491341
-0.01181 umol/L
Standard Deviation 0.820744
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
15-Hydroxy Eicosapentaenoic Acid
0.00069 umol/L
Standard Deviation 0.025828
0.02028 umol/L
Standard Deviation 0.059147
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
19,20-diHydroxy Docosapentaenoic Acid
0.16447 umol/L
Standard Deviation 0.865788
0.06606 umol/L
Standard Deviation 0.568695
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
8-Hydroxy Eicosatetraenoic Acid
-0.00744 umol/L
Standard Deviation 0.093498
0.01879 umol/L
Standard Deviation 0.088266
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
Thiobarbituric Acid Reactive Substances
-0.0504 umol/L
Standard Deviation 0.79940
0.0406 umol/L
Standard Deviation 1.19656
The Change in Metabolipidomic Profile and in Markers of Oxidative Stress in Blood
Nitrotyrosine (NT3)
-1.57 umol/L
Standard Deviation 72.964
10.35 umol/L
Standard Deviation 146.824

OTHER_PRE_SPECIFIED outcome

Timeframe: From baseline to 28 weeks

Population: Only very few subjects got sampled pre- and post-pulmonary exacerbation, rendering this data anecdotic. No outcome measure is presented.

Only in patients who experience a pulmonary exacerbation requiring IV antibiotics, this was to be assessed prior to- and after receiving an IV antibiotic course.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline and 24 weeks

Population: Absolute change from Baseline at Week 24. Intent to treat population (ITT)

This was assessed through blood sampling on 2 occasions during the trial at Baseline and Week 24.

Outcome measures

Outcome measures
Measure
LAU-7b
n=83 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Change From Baseline of Systemic Bone Formation and Resorption Biomarkers
Aminoterminal Propeptide
-5.0 Change in ug/L
Standard Deviation 14.90
-4.5 Change in ug/L
Standard Deviation 16.97
The Change From Baseline of Systemic Bone Formation and Resorption Biomarkers
C-Telopeptide
-0.012 Change in ug/L
Standard Deviation 0.2092
0.015 Change in ug/L
Standard Deviation 0.1857
The Change From Baseline of Systemic Bone Formation and Resorption Biomarkers
Osteocalcin
-1.46 Change in ug/L
Standard Deviation 6.181
0.57 Change in ug/L
Standard Deviation 5.703

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline and 28 weeks

Population: Absolute change from Baseline at Week 24. Intent to treat population (ITT) in subjects volunteering to undergo bone density measurement

This was assessed through Lumbar spine bone mineral density measured on 2 occasions during the trial at Baseline and at Week 28 in a subset of sites and on a voluntary basis. Bone mineral density in g/cm2 is then normalized and expressed as a Z-score distribution according to age and gender. A Z-score of 0 represents the population mean for the age and gender category, a -1 value or +1 value means below or above the population mean bone mineral density for the age and gender category, but considered normal. A -2.5 value indicates secondary osteoporosis, a worse outcome.

Outcome measures

Outcome measures
Measure
LAU-7b
n=6 Participants
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=11 Participants
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo administered orally once-a-day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
The Change From Baseline of Bone Mineral Density
-0.18 Z-score
Standard Deviation 0.69
0.09 Z-score
Standard Deviation 0.28

Adverse Events

LAU-7b

Serious events: 20 serious events
Other events: 80 other events
Deaths: 0 deaths

Placebo

Serious events: 15 serious events
Other events: 79 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
LAU-7b
n=83 participants at risk
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 participants at risk
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Eye disorders
Loss of visual contrast sensitivity
1.2%
1/83 • 28 weeks
0.00%
0/83 • 28 weeks
Gastrointestinal disorders
Distal intestinal obstruction syndrome
2.4%
2/83 • 28 weeks
2.4%
2/83 • 28 weeks
Gastrointestinal disorders
Constipation
1.2%
1/83 • 28 weeks
0.00%
0/83 • 28 weeks
Gastrointestinal disorders
Small intestinal obstruction
0.00%
0/83 • 28 weeks
1.2%
1/83 • 28 weeks
Infections and infestations
Infective pulmonary exacerbation of cystic fibrosis
18.1%
15/83 • 28 weeks
12.0%
10/83 • 28 weeks
Infections and infestations
Appendicitis
2.4%
2/83 • 28 weeks
0.00%
0/83 • 28 weeks
Infections and infestations
Influenza
1.2%
1/83 • 28 weeks
0.00%
0/83 • 28 weeks
Infections and infestations
Pneumonia staphylococcal
1.2%
1/83 • 28 weeks
0.00%
0/83 • 28 weeks
Infections and infestations
Pneumonia
0.00%
0/83 • 28 weeks
1.2%
1/83 • 28 weeks
Injury, poisoning and procedural complications
Traumatic intracranial hemorrhage
0.00%
0/83 • 28 weeks
1.2%
1/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Hemoptysis
1.2%
1/83 • 28 weeks
2.4%
2/83 • 28 weeks

Other adverse events

Other adverse events
Measure
LAU-7b
n=83 participants at risk
Active drug fenretinide (as LAU-7b capsules) LAU-7b: LAU-7b will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Placebo
n=83 participants at risk
Placebo oral capsule (as inactive capsules identical to active arm) Placebo oral capsule: Placebo will be administered orally once-a-day with the first meal of the day as cycles of 21 days on, 7 days off, for a total of 6 planned cycles.
Eye disorders
Delayed dark adaptation
26.5%
22/83 • 28 weeks
4.8%
4/83 • 28 weeks
Eye disorders
Night blindness
18.1%
15/83 • 28 weeks
2.4%
2/83 • 28 weeks
Eye disorders
Delayed light adaptation
12.0%
10/83 • 28 weeks
2.4%
2/83 • 28 weeks
Eye disorders
Glare
10.8%
9/83 • 28 weeks
7.2%
6/83 • 28 weeks
Eye disorders
Visual impairment
10.8%
9/83 • 28 weeks
2.4%
2/83 • 28 weeks
Eye disorders
Xanthopsia
8.4%
7/83 • 28 weeks
0.00%
0/83 • 28 weeks
Eye disorders
Photophobia
7.2%
6/83 • 28 weeks
4.8%
4/83 • 28 weeks
Gastrointestinal disorders
Diarrhea
13.3%
11/83 • 28 weeks
7.2%
6/83 • 28 weeks
Gastrointestinal disorders
Abdominal pain
9.6%
8/83 • 28 weeks
8.4%
7/83 • 28 weeks
Gastrointestinal disorders
Nausea
7.2%
6/83 • 28 weeks
8.4%
7/83 • 28 weeks
General disorders
Fatigue
12.0%
10/83 • 28 weeks
8.4%
7/83 • 28 weeks
General disorders
Pyrexia
7.2%
6/83 • 28 weeks
4.8%
4/83 • 28 weeks
General disorders
Chest discomfort
6.0%
5/83 • 28 weeks
4.8%
4/83 • 28 weeks
Infections and infestations
Infective pulmonary exacerbation of cystic fibrosis
26.5%
22/83 • 28 weeks
26.5%
22/83 • 28 weeks
Infections and infestations
Upper respiratory tract infection
15.7%
13/83 • 28 weeks
9.6%
8/83 • 28 weeks
Infections and infestations
Nasopharyngitis
7.2%
6/83 • 28 weeks
3.6%
3/83 • 28 weeks
Investigations
Glucose urine present
7.2%
6/83 • 28 weeks
2.4%
2/83 • 28 weeks
Investigations
Blood glucose increased
4.8%
4/83 • 28 weeks
6.0%
5/83 • 28 weeks
Musculoskeletal and connective tissue disorders
Arthralgia
6.0%
5/83 • 28 weeks
3.6%
3/83 • 28 weeks
Nervous system disorders
Headache
16.9%
14/83 • 28 weeks
12.0%
10/83 • 28 weeks
Psychiatric disorders
Insomnia
4.8%
4/83 • 28 weeks
8.4%
7/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Cough
27.7%
23/83 • 28 weeks
28.9%
24/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Hemoptysis
13.3%
11/83 • 28 weeks
15.7%
13/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Dyspnea
12.0%
10/83 • 28 weeks
13.3%
11/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Sputum increased
8.4%
7/83 • 28 weeks
15.7%
13/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
7.2%
6/83 • 28 weeks
10.8%
9/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Nasal congestion
3.6%
3/83 • 28 weeks
6.0%
5/83 • 28 weeks
Respiratory, thoracic and mediastinal disorders
Productive cough
1.2%
1/83 • 28 weeks
6.0%
5/83 • 28 weeks
Skin and subcutaneous tissue disorders
Acne
7.2%
6/83 • 28 weeks
6.0%
5/83 • 28 weeks
Skin and subcutaneous tissue disorders
Pruritus
6.0%
5/83 • 28 weeks
3.6%
3/83 • 28 weeks
Skin and subcutaneous tissue disorders
Rash
4.8%
4/83 • 28 weeks
9.6%
8/83 • 28 weeks

Additional Information

Dr Jean-Marie Houle, VP Clinical Development

Laurent Pharmaceuticals Inc.

Phone: 514-941-2313

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place