Trial Outcomes & Findings for Study of the Safety, Pharmacodynamics (PD) and Efficacy of KRN23 in Children From 1 to 4 Years Old With X-linked Hypophosphatemia (XLH) (NCT NCT02750618)

NCT ID: NCT02750618

Last Updated: 2024-05-06

Results Overview

The Generalized Estimation Equation (GEE) model includes the change from baseline as the dependent variable, time as the categorical variable and adjusted for baseline measurement, with exchangeable covariance structure.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

13 participants

Primary outcome timeframe

Baseline, Week 40

Results posted on

2024-05-06

Participant Flow

The study enrolled pediatric participants between 1 and 4 years old, inclusive, with clinical findings consistent with XLH including hypophosphatemia and radiographic evidence of rickets, and a confirmed PHEX mutation or variant of uncertain significance.

Participant milestones

Participant milestones
Measure
Burosumab Q2W
Burosumab subcutaneous (SC) injections every 2 weeks (Q2W) for a total of 160 weeks.
Overall Study
STARTED
13
Overall Study
Completed Week 40
13
Overall Study
Completed Week 64
13
Overall Study
COMPLETED
12
Overall Study
NOT COMPLETED
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Burosumab Q2W
Burosumab subcutaneous (SC) injections every 2 weeks (Q2W) for a total of 160 weeks.
Overall Study
Withdrawal by Subject
1

Baseline Characteristics

Study of the Safety, Pharmacodynamics (PD) and Efficacy of KRN23 in Children From 1 to 4 Years Old With X-linked Hypophosphatemia (XLH)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Age, Continuous
2.94 years
STANDARD_DEVIATION 1.146 • n=5 Participants
Sex: Female, Male
Female
4 Participants
n=5 Participants
Sex: Female, Male
Male
9 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race/Ethnicity, Customized
White
12 Participants
n=5 Participants
Race/Ethnicity, Customized
Black or African American
1 Participants
n=5 Participants
Serum Phosphorus
2.51 mg/dL
STANDARD_DEVIATION 0.284 • n=5 Participants
Rickets Severity Score (RSS) Total Score
2.92 units on a scale
STANDARD_DEVIATION 1.367 • n=5 Participants
Recumbent length/Standing height
89.15 cm
STANDARD_DEVIATION 7.597 • n=5 Participants
Recumbent length/Standing height (Z score)
-1.378 Z score
STANDARD_DEVIATION 1.1947 • n=5 Participants
Recumbent length/Standing height (percentile)
18.044 percentile
STANDARD_DEVIATION 25.2644 • n=5 Participants
Serum Alkaline Phosphatase (ALP)
548.5 U/L
STANDARD_DEVIATION 193.80 • n=5 Participants

PRIMARY outcome

Timeframe: Baseline, Week 40

Population: Pharmacokinetic/Pharmacodynamic (PK/PD) Analysis Set: all participants who received at least one dose of study drug and had evaluable blood samples.

The Generalized Estimation Equation (GEE) model includes the change from baseline as the dependent variable, time as the categorical variable and adjusted for baseline measurement, with exchangeable covariance structure.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline at Week 40 in Serum Phosphorus
0.96 mg/dL
Standard Error 0.117

PRIMARY outcome

Timeframe: From first dose of study drug through the end of the study (Week 160). Maximum duration of exposure to study drug was 160 weeks.

Population: Safety Analysis Set: all participants who received at least one dose of study drug.

An AE was defined as any untoward medical occurrence associated with the use of a drug, whether or not considered drug related. A serious AE was defined as an AE that at any dose, in the view of either the Investigator or Sponsor, results in any of the following outcomes: death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant incapacity or disability, a congenital anomaly/birth defect, or other important medical events (according to the investigator). An AE was considered a TEAE if it occurred on or after the first dose and was not present prior to the first dose, or it was present prior to the first dose but increased in severity during the study. Events were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 4.0: grade 1 (mild), grade 2 (moderate), grade 3 (severe), grade 4 (life-threatening), grade 5 (death).

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
Adverse Event Starting during Screening Period
5 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
TEAEs
13 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
Related TEAEs
5 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
Serious TEAEs
1 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
Serious Related TEAEs
0 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
Grade 3 or 4 TEAE
2 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
TEAE Leading to Study Discontinuation
0 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
TEAE Leading to Treatment Discontinuation
0 Participants
Number of Participants With Adverse Events (AEs), Treatment Emergent AEs (TEAEs), Serious TEAEs, and TEAEs Leading to Discontinuation
TEAE Leading to Death
0 Participants

SECONDARY outcome

Timeframe: Week 40

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement.

Changes in the severity of rickets and bowing were assessed centrally by three independent pediatric radiologists contracted by a central imaging facility using a disease specific qualitative RGI-C scoring system. The RGI-C is a seven point ordinal scale with possible values: +3 = very much better (complete or near complete healing of rickets), +2 = much better (substantial healing of rickets), +1 = minimally better (i.e., minimal healing of rickets), 0 = unchanged, -1 = minimally worse (minimal worsening of rickets), -2 = much worse (moderate worsening of rickets), -3 = very much worse (severe worsening of rickets). The Analysis of Covariance (ANCOVA) model includes the RGI-C score as the dependent variable, age and RSS at baseline as covariates.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Radiographic Global Impression of Change (RGI-C) Score at Week 40
2.21 units on a scale
Standard Error 0.071

SECONDARY outcome

Timeframe: Week 64

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement.

Changes in the severity of rickets and bowing were assessed centrally by three independent pediatric radiologists contracted by a central imaging facility using a disease specific qualitative RGI-C scoring system. The RGI-C is a seven point ordinal scale with possible values: +3 = very much better (complete or near complete healing of rickets), +2 = much better (substantial healing of rickets), +1 = minimally better (i.e., minimal healing of rickets), 0 = unchanged, -1 = minimally worse (minimal worsening of rickets), -2 = much worse (moderate worsening of rickets), -3 = very much worse (severe worsening of rickets). The GEE model includes the RGI-C score as the dependent variable, visit as a factor, age and RSS at baseline as covariates, with exchangeable covariance structure.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
RGI-C Score at Week 64
2.23 units on a scale
Standard Error 0.111

SECONDARY outcome

Timeframe: Baseline, Week 40

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement.

The RSS system is a 10-point radiographic scoring method that was developed to assess the severity of nutritional rickets in the wrists and knees based on the degree of metaphyseal fraying, cupping, and the proportion of the growth plate affected. Scores are assigned for the unilateral wrist and knee X-rays deemed by the rater to be the more severe of the bilateral images. The maximum total score on the RSS is 10 points and the minimum score is 0, with a total possible score of 4 points for the wrists and 6 points for the knees. Higher scores indicate greater rickets severity.The ANCOVA model includes the RGI-C score as the dependent variable, age and RSS at baseline as covariates.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline in Rickets at Week 40 as Assessed by the RSS Total Score
-1.75 units on a scale
Standard Error 0.116

SECONDARY outcome

Timeframe: Baseline, Week 64

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement.

The RSS system is a 10-point radiographic scoring method that was developed to assess the severity of nutritional rickets in the wrists and knees based on the degree of metaphyseal fraying, cupping, and the proportion of the growth plate affected. Scores are assigned for the unilateral wrist and knee X-rays deemed by the rater to be the more severe of the bilateral images. The maximum total score on the RSS is 10 points, with a total possible score of 4 points for the wrists and 6 points for the knees. Higher scores indicate greater rickets severity. The GEE model includes the change from baseline in RSS as the dependent variable, visit as a factor, age and RSS at baseline as covariates, with exchangeable covariance structure.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline in Rickets at Week 64 as Assessed by the RSS Total Score
-2.02 units on a scale
Standard Error 0.115

SECONDARY outcome

Timeframe: Week 40

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement.

Changes in the severity of lower extremity skeletal abnormalities were assessed centrally by three independent pediatric radiologists contracted by a central imaging facility using a disease specific qualitative RGI-C scoring system. The RGI-C is a seven point ordinal scale with possible values: +3 = very much better (complete or near complete healing of rickets), +2 = much better (substantial healing of rickets), +1 = minimally better (i.e., minimal healing of rickets), 0 = unchanged, -1 = minimally worse (minimal worsening of rickets), -2 = much worse (moderate worsening of rickets), -3 = very much worse (severe worsening of rickets). The ANCOVA model includes the RGI-C score as the dependent variable, age and RSS at baseline as covariates.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
RGI-C Lower Limb Deformity Score at Week 40
1.21 units on a scale
Standard Error 0.155

SECONDARY outcome

Timeframe: Week 64

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement.

Changes in the severity of lower extremity skeletal abnormalities were assessed centrally by three independent pediatric radiologists contracted by a central imaging facility using a disease specific qualitative RGI-C scoring system. The RGI-C is a seven point ordinal scale with possible values: +3 = very much better (complete or near complete healing of rickets), +2 = much better (substantial healing of rickets), +1 = minimally better (i.e., minimal healing of rickets), 0 = unchanged, -1 = minimally worse (minimal worsening of rickets), -2 = much worse (moderate worsening of rickets), -3 = very much worse (severe worsening of rickets). The GEE model includes the RGI-C score as the dependent variable, visit as a factor, age and RSS at baseline as covariates, with exchangeable covariance structure.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
RGI-C Lower Limb Deformity Score at Week 64
1.51 units on a scale
Standard Error 0.123

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24, 40, 64, 88, 112, 136, 160

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement at given time point.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 12
1.44 cm
Standard Deviation 2.009
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 24
2.52 cm
Standard Deviation 1.518
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 40
4.29 cm
Standard Deviation 2.451
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 64
7.22 cm
Standard Deviation 3.157
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 88
10.30 cm
Standard Deviation 3.400
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 112
13.25 cm
Standard Deviation 3.724
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 136
15.41 cm
Standard Deviation 3.699
Change From Baseline Over Time in Recumbent Length/Standing Height
Week 160
18.96 cm
Standard Deviation 4.206

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24, 40, 64, 88, 112, 136, 160

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement at given time point.

Recumbent length/Standing height z scores are measures of height adjusted for a child's age and sex. The Z-score indicates the number of standard deviations away from a reference population (from the CDC growth charts) in the same age range and with the same sex. A Z-score of 0 is equal to the mean with negative numbers indicating values lower than the mean and positive values higher. Higher Z-scores indicate a better outcome.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 12
-0.082 Z score
Standard Deviation 0.4964
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 24
-0.208 Z score
Standard Deviation 0.4540
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 40
-0.276 Z score
Standard Deviation 0.6647
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 64
-0.264 Z score
Standard Deviation 0.8755
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 88
-0.212 Z score
Standard Deviation 0.9115
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 112
-0.174 Z score
Standard Deviation 0.9273
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 136
-0.321 Z score
Standard Deviation 0.9123
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Height-for-Age Z-Scores
Week 160
-0.172 Z score
Standard Deviation 0.9048

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24, 40, 64, 88, 112, 136, 160

Population: Efficacy Analysis Set: all participants who received at least one dose of study drug and had at least one post-study drug measurement at given time point.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 12
-0.006 percentiles
Standard Deviation 11.6149
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 24
-4.940 percentiles
Standard Deviation 13.1323
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 40
-5.283 percentiles
Standard Deviation 20.1675
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 64
-4.980 percentiles
Standard Deviation 23.4412
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 88
-4.155 percentiles
Standard Deviation 23.9126
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 112
-3.000 percentiles
Standard Deviation 24.7569
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 136
-7.026 percentiles
Standard Deviation 24.8583
Change From Baseline Over Time in Recumbent Length/Standing Height as Assessed by Percentiles
Week 160
-3.628 percentiles
Standard Deviation 25.5113

SECONDARY outcome

Timeframe: Baseline, Weeks 4, 12, 20, 40, 48, 56, 64, 76, 88, 100, 112, 124, 136, 148, 160

Population: PK/PD Analysis Set: all participants who received at least one dose of study drug and had evaluable blood samples at given time point.

The GEE model includes the change from baseline as the dependent variable, time as the categorical variable and adjusted for baseline measurement, with exchangeable covariance structure.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 4
-82.91 U/L
Standard Error 23.348
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 12
-83.84 U/L
Standard Error 45.263
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 20
-161.38 U/L
Standard Error 12.924
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 40
-214.99 U/L
Standard Error 13.628
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 48
-226.58 U/L
Standard Error 11.491
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 56
-216.45 U/L
Standard Error 16.165
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 64
-216.76 U/L
Standard Error 12.705
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 76
-231.22 U/L
Standard Error 15.964
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 88
-237.78 U/L
Standard Error 12.837
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 100
-218.14 U/L
Standard Error 15.340
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 112
-233.91 U/L
Standard Error 11.098
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 124
-252.22 U/L
Standard Error 8.312
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 136
-267.89 U/L
Standard Error 13.124
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 148
-248.05 U/L
Standard Error 12.653
Change From Baseline Over Time in Serum Alkaline Phosphatase (ALP)
Week 160
-248.47 U/L
Standard Error 10.990

SECONDARY outcome

Timeframe: Baseline, Weeks 4, 12, 20, 40, 48, 56, 64, 76, 88, 100, 112, 124, 136, 148, 160

Population: PK/PD Analysis Set: all participants who received at least one dose of study drug and had evaluable blood samples at given time point.

Outcome measures

Outcome measures
Measure
Burosumab Q2W
n=13 Participants
Burosumab SC injections Q2W for a total of 160 weeks.
Percent Change From Baseline Over Time in Serum ALP
Week 4
-12.47 percent change
Standard Deviation 16.620
Percent Change From Baseline Over Time in Serum ALP
Week 12
-5.00 percent change
Standard Deviation 60.124
Percent Change From Baseline Over Time in Serum ALP
Week 20
-24.76 percent change
Standard Deviation 18.883
Percent Change From Baseline Over Time in Serum ALP
Week 40
-36.25 percent change
Standard Deviation 12.787
Percent Change From Baseline Over Time in Serum ALP
Week 48
-37.29 percent change
Standard Deviation 13.936
Percent Change From Baseline Over Time in Serum ALP
Week 56
-35.80 percent change
Standard Deviation 16.568
Percent Change From Baseline Over Time in Serum ALP
Week 64
-35.95 percent change
Standard Deviation 14.851
Percent Change From Baseline Over Time in Serum ALP
Week 76
-38.36 percent change
Standard Deviation 15.621
Percent Change From Baseline Over Time in Serum ALP
Week 88
-39.08 percent change
Standard Deviation 12.987
Percent Change From Baseline Over Time in Serum ALP
Week 100
-37.42 percent change
Standard Deviation 12.466
Percent Change From Baseline Over Time in Serum ALP
Week 112
-39.05 percent change
Standard Deviation 13.808
Percent Change From Baseline Over Time in Serum ALP
Week 124
-43.11 percent change
Standard Deviation 12.493
Percent Change From Baseline Over Time in Serum ALP
Week 136
-47.01 percent change
Standard Deviation 11.752
Percent Change From Baseline Over Time in Serum ALP
Week 148
-43.47 percent change
Standard Deviation 11.321
Percent Change From Baseline Over Time in Serum ALP
Week 160
-42.35 percent change
Standard Deviation 13.574

Adverse Events

Burosumab Q2W

Serious events: 1 serious events
Other events: 13 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Burosumab Q2W
n=13 participants at risk
Burosumab SC injections Q2W for a total of 160 weeks.
Infections and infestations
Tooth Abscess
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.

Other adverse events

Other adverse events
Measure
Burosumab Q2W
n=13 participants at risk
Burosumab SC injections Q2W for a total of 160 weeks.
Congenital, familial and genetic disorders
Skull Malformation
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Congenital, familial and genetic disorders
Syringomyelia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Deafness Unilateral
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Ear Haemorrhage
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Ear Pain
30.8%
4/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Excessive Cerumen Production
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Hypoacusis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Motion Sickness
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Otorrhoea
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Ear and labyrinth disorders
Tinnitus
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Eye disorders
Ocular Hyperaemia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Abdominal Discomfort
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Abdominal Pain Upper
38.5%
5/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Aphthous Ulcer
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Constipation
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Dental Caries
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Diarrhoea
46.2%
6/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Epigastric Discomfort
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Gingival Blister
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Gingival Erythema
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Gingival Pain
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Haematochezia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Loose Tooth
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Nausea
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Oral Pain
30.8%
4/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Post-Tussive Vomiting
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Stomatitis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Teething
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Toothache
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Vomiting
53.8%
7/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Gastrointestinal disorders
Vomiting Projectile
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Fatigue
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Injection Site Bruising
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Injection Site Erythema
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Injection Site Pain
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Injection Site Pruritus
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Injection Site Reaction
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Non-Cardiac Chest Pain
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Pain
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Pyrexia
84.6%
11/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
General disorders
Vaccination Site Reaction
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Immune system disorders
Food Allergy
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Immune system disorders
Hypersensitivity
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Atypical Pneumonia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Conjunctivitis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Croup Infectious
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Ear Infection
46.2%
6/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Enterobiasis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Eye Infection
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Gastroenteritis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Gastrointestinal Viral Infection
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Genital Candidiasis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Gingival Abscess
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Hand-Foot-And-Mouth Disease
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Hordeolum
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Impetigo
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Influenza
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Molluscum Contagiosum
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Nasopharyngitis
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Otitis Media
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Pharyngitis Streptococcal
61.5%
8/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Pneumonia
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Sinusitis
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Tooth Abscess
76.9%
10/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Upper Respiratory Tract Infection
69.2%
9/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Urinary Tract Infection
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Viral Infection
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Infections and infestations
Viral Upper Respiratory Tract Infection
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Arthropod Bite
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Contusion
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Fall
30.8%
4/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Laceration
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Lip Injury
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Skin Abrasion
30.8%
4/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Tooth Fracture
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Tooth Injury
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Injury, poisoning and procedural complications
Traumatic Tooth Displacement
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Amylase Increased
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Blood 25-Hydroxycholecalciferol Decreased
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Blood Parathyroid Hormone Increased
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Blood Phosphorus Decreased
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Heart Rate Abnormal
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Lipase Increased
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
Vitamin D Decreased
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Investigations
White Blood Cell Count Increased
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Metabolism and nutrition disorders
Decreased Appetite
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Metabolism and nutrition disorders
Increased Appetite
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Metabolism and nutrition disorders
Polydipsia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Arthralgia
30.8%
4/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Back Pain
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Bone Pain
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Foot Deformity
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Knee Deformity
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Myalgia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Musculoskeletal and connective tissue disorders
Pain In Extremity
69.2%
9/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Nervous system disorders
Dizziness
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Nervous system disorders
Dysarthria
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Nervous system disorders
Headache
46.2%
6/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Nervous system disorders
Hypersomnia
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Nervous system disorders
Lethargy
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Nervous system disorders
Periodic Limb Movement Disorder
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Psychiatric disorders
Insomnia
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Renal and urinary disorders
Dysuria
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Renal and urinary disorders
Polyuria
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Renal and urinary disorders
Urinary Incontinence
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Reproductive system and breast disorders
Penile Erythema
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Reproductive system and breast disorders
Penile Pain
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Adenoidal Disorder
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Chronic Throat Clearing
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Cough
84.6%
11/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Epistaxis
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Nasal Congestion
61.5%
8/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Nasal Discharge Discolouration
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Oropharyngeal Pain
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Productive Cough
23.1%
3/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Respiratory Tract Congestion
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
53.8%
7/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Sinus Congestion
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Sneezing
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Throat Irritation
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Respiratory, thoracic and mediastinal disorders
Wheezing
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Dermatitis Contact
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Pruritus
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Rash
15.4%
2/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Rash Papular
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Skin Disorder
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Swelling Face
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Urticaria
30.8%
4/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Skin and subcutaneous tissue disorders
Urticaria Papular
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Vascular disorders
Flushing
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.
Vascular disorders
Haematoma
7.7%
1/13 • From first dose of study drug through the end of the study (at Week 160). Maximum duration of exposure to study drug was 160 weeks.

Additional Information

Medical Information

Ultragenyx Pharmaceutical Inc

Phone: 1-888-756-8657

Results disclosure agreements

  • Principal investigator is a sponsor employee The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days from the time submitted to the sponsor for review. The sponsor cannot require changes to the communication and cannot extend the embargo.
  • Publication restrictions are in place

Restriction type: OTHER