Trial Outcomes & Findings for An Open-Label Phase 1/2 Study to Assess the Safety, Efficacy and Dose of Study Drug UX003 Recombinant Human Beta-glucuronidase (rhGUS) Enzyme Replacement Therapy in Patients With Mucopolysaccharidosis Type 7 (MPS 7) (NCT NCT01856218)

Last Updated: 2019-01-04

Results Overview

Percentage change from baseline in the concentration of uGAGs normalized to the urinary creatinine concentration as measured by liquid chromatography-mass spectrometry/mass spectrometry-dermatan sulfate.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

3 participants

Primary outcome timeframe

Baseline, Week 14, Week 22, Week 30, Week 38, Week 72, and end of study (up to Week 132)

Results posted on

2019-01-04

Participant Flow

Participant milestones

Participant milestones
Measure	UX003 During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 every other week (QOW) for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
First Phase STARTED	3
First Phase COMPLETED	3
First Phase NOT COMPLETED	0
Long-Term Extension Phase STARTED	3
Long-Term Extension Phase COMPLETED	3
Long-Term Extension Phase NOT COMPLETED	0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

An Open-Label Phase 1/2 Study to Assess the Safety, Efficacy and Dose of Study Drug UX003 Recombinant Human Beta-glucuronidase (rhGUS) Enzyme Replacement Therapy in Patients With Mucopolysaccharidosis Type 7 (MPS 7)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure	UX003 n=3 Participants During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Age, Customized Children (2-11 years)	2 Participants n=5 Participants
Age, Customized Adults (18-64 years)	1 Participants n=5 Participants
Sex: Female, Male Female	1 Participants n=5 Participants
Sex: Female, Male Male	2 Participants n=5 Participants

PRIMARY outcome

Timeframe: Baseline, Week 14, Week 22, Week 30, Week 38, Week 72, and end of study (up to Week 132)

Outcome measures

Outcome measures
Measure	UX003 n=3 Participants During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Percentage Change From Baseline in Urinary Glycosaminoglycan (uGAG) Dermatan Sulfate Forced dose titration-Week 30	-63.49 percentage change Standard Deviation 6.889
Percentage Change From Baseline in Urinary Glycosaminoglycan (uGAG) Dermatan Sulfate Forced dose titration-Week 38	-51.82 percentage change Standard Deviation 9.033
Percentage Change From Baseline in Urinary Glycosaminoglycan (uGAG) Dermatan Sulfate Continuation-Week 72	-54.2 percentage change Standard Deviation 8.442
Percentage Change From Baseline in Urinary Glycosaminoglycan (uGAG) Dermatan Sulfate Initial treatment-Week 14	-50.41 percentage change Standard Deviation 7.895
Percentage Change From Baseline in Urinary Glycosaminoglycan (uGAG) Dermatan Sulfate Forced dose titration-Week 22	-38.94 percentage change Standard Deviation 7.137
Percentage Change From Baseline in Urinary Glycosaminoglycan (uGAG) Dermatan Sulfate Long term extension-end of study	-34.44 percentage change Standard Deviation 48.56

PRIMARY outcome

Timeframe: Baseline, Week 14, Week 22, Week 30, Week 38, Week 72, and end of study (up to Week 132)

Outcome measures

Outcome measures
Measure	UX003 n=3 Participants During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Percentage Change From Baseline in uGAG Chondroitin Sulfate Continuation-Week 72	-56.96 percentage change Standard Deviation 13.379
Percentage Change From Baseline in uGAG Chondroitin Sulfate Long term extension-end of study	-30.83 percentage change Standard Deviation 40.794
Percentage Change From Baseline in uGAG Chondroitin Sulfate Initial treatment-Week 14	-52.5 percentage change Standard Deviation 13.726
Percentage Change From Baseline in uGAG Chondroitin Sulfate Forced dose titration-Week 22	-47.58 percentage change Standard Deviation 3.958
Percentage Change From Baseline in uGAG Chondroitin Sulfate Forced dose titration-Week 30	-60.78 percentage change Standard Deviation 7.207
Percentage Change From Baseline in uGAG Chondroitin Sulfate Forced dose titration-Week 38	-52.08 percentage change Standard Deviation 13.298

PRIMARY outcome

Timeframe: up to Week 132

Participants with a ≥ 50% decrease in the concentration of uGAGs normalized to the urinary creatinine concentration as measured by liquid chromatography-mass spectrometry/mass spectrometry-dermatan sulfate or chondroitin sulfate.

Outcome measures

Outcome measures
Measure	UX003 n=3 Participants During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Number of Participants With Any ≥ 50% Decrease in uGAG	3 Participants

PRIMARY outcome

Timeframe: Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit.

Adverse Event (AE): any untoward medical occurrence in a subject, whether or not considered drug related. SAE: an AE or suspected adverse reaction that at any dose results in any of the following outcomes: death; a life-threatening AE; inpatient hospitalization or prolongation of existing hospitalization; persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions; a congenital anomaly/birth defect. Other important medical events may also, in the opinion of the Investigator, be considered SAEs. 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 at the first dose but increased in severity during the study. Events recorded as either possibly, probably, or definitely related to treatment were categorized as related. AE severity was graded using the National Cancer Institute's Common Terminology Criteria for Adverse Events, Version 4.03.

Outcome measures

Outcome measures
Measure	UX003 n=3 Participants During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations Any TEAE	3 participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations Grade 3 or 4 TEAE	2 participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations TEAE leading to treatment discontinuation	1 participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations TEAE leading to study discontinuation	0 participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations Treatment-related TEAE	2 participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations SAE	2 participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Deaths, and Study/Treatment Discontinuations Fatal TEAE	0 participants

SECONDARY outcome

Timeframe: Week 36

The choice of the dose of UX003 QOW for the Long-Term Extension Phase was based on a preliminary efficacy analysis at Week 36 prior to all 3 participants completing the Forced-dose Titration Period of the First Phase of the study.

Outcome measures

Outcome measures
Measure	UX003 n=3 Participants During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Acceptable Dose as Determined by Total uGAG Excretion Using a Forced Dose Titration Regimen	4 mg/kg

SECONDARY outcome

Timeframe: Baseline, Week 36

Population: Summary analyses for all 3 participants are not available due to the very small number of participants; and while data were collected for 1 participant, they are not being reported due to confidentiality issues.

The total distance walked (meters) in a 6-minute period was measured once each test day. The test was conducted using a pre-measured walking course according to administration guidelines established by the American Thoracic Society (ATS 2002). Participants who could not walk could omit this test.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 36 Weeks

The percent of predicted normal distance walked (based on published normative data) in the total distance walked in a six-minute period.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Week 36

The number of stairs climbed within a 3-minute period was assessed once each test day using available hospital stairs. Participants who could not climb stairs could omit this test.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Week 36

The following spirometry tests were administered to participants who did not require invasive ventilatory support or have a tracheostomy in accordance with American Thoracic Society/European Respiratory society (ATS/ERS) guidelines: forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), maximum voluntary ventilation in one minute (MVV1). Invasive ventilation is defined as any form of ventilatory support applied with the use of an endotracheal tube.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Week 36

Population: Summary analyses for all 3 participants combined are not available. Due to the very small number of participants, formal statistical analyses were not performed; and data were presented per participant, which has the potential for participant re-identification given the rarity of disease and the very small population size.

Growth velocity (for males ≤18 years and females ≤15) was calculated from anthropometric measurements and compared with pretreatment growth velocity when available. Z-scores and percentiles were calculated using Centers for Disease Control (CDC) growth chart.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Baseline, Week 36

The maximum passive shoulder range of motion in both flexion and extension will be measured in degrees using a goniometer.

Outcome measures

Outcome data not reported

Adverse Events

UX003

Serious events: 2 serious events

Other events: 3 other events

Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure	UX003 n=3 participants at risk During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Surgical and medical procedures Inguinal hernia repair	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Nervous system disorders Spinal cord compression	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Nervous system disorders Cerebral ventricle dilatation	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Oedema peripheral	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Gastrointestinal disorders Incarcerated inguinal hernia	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Musculoskeletal and connective tissue disorders Osteoarthritis	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.

Other adverse events

Other adverse events
Measure	UX003 n=3 participants at risk During the initial 14-week treatment period of the study, participants received 2 mg/kg UX003 QOW for 12 weeks. At Week 14, participants continued on UX003 therapy and began a forced dose titration period for an additional 24 weeks at the dose sequence of 1, 4, and 2 mg/kg UX003 QOW as follows: 1 mg/kg UX003 for 8 weeks beginning on Week 14; then 4 mg/kg UX003 for 8 weeks beginning on Week 22; then 2 mg/kg UX003 for 8 weeks beginning on Week 30. Following the 24 week forced dose titration period, participants who continued on treatment (continuation period) received 2 mg/kg UX003 QOW beginning at Week 38 for up to an additional 36 weeks. After the first phase of the study, participants who elected to continue drug treatment were transitioned to the long-term extension phase, where they were treated with UX003 at 4 mg/kg beginning at Week 74, for up to an additional 168 weeks.
Injury, poisoning and procedural complications Ligament sprain	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Injury, poisoning and procedural complications Skin abrasion	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Investigations Body temperature increased	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Investigations Weight increased	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps) Papilloma	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Bronchospasm	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Cough	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Increased viscosity of bronchial secretion	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Nasal congestion	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Oropharyngeal pain	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Respiratory failure	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Rhinitis allergic	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Respiratory, thoracic and mediastinal disorders Rhinorrhoea	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Blood and lymphatic system disorders Anaemia	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Nervous system disorders Dizziness	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Nervous system disorders Nystagmus	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Nervous system disorders Reflexes abnormal	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Nervous system disorders Visual field defect	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Discomfort	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Gait disturbance	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Infusion site extravasation	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Oedema peripheral	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Pyrexia	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
General disorders Generalised Oedema	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Gastrointestinal disorders Constipation	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Gastrointestinal disorders Diarrhoea	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Gastrointestinal disorders Oral mucosal erythema	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Gastrointestinal disorders Toothache	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Gastrointestinal disorders Vomiting	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Skin and subcutaneous tissue disorders Decubitus ulcer	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Skin and subcutaneous tissue disorders Erythema	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Skin and subcutaneous tissue disorders Pruritus	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Skin and subcutaneous tissue disorders Rash	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Skin and subcutaneous tissue disorders Rash macular	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Skin and subcutaneous tissue disorders Seborrhoeic dermatitis	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Musculoskeletal and connective tissue disorders Arthralgia	100.0% 3/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Musculoskeletal and connective tissue disorders Groin pain	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Musculoskeletal and connective tissue disorders Musculoskeletal pain	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Musculoskeletal and connective tissue disorders Musculoskeletal stiffness	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Musculoskeletal and connective tissue disorders Myalgia	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Metabolism and nutrition disorders Increased appetite	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Acute sinusitis	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Dermatitis infected	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Ear infection	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Molluscum contagiosum	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Nasopharyngitis	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Nosocomial infection	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Otitis media	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Pharyngitis	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Respiratory tract infection	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Tonsillitis	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Tooth abscess	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Upper respiratory tract infection	66.7% 2/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Urinary tract infection	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.
Infections and infestations Viral rash	33.3% 1/3 • Up to 242 weeks + 30 days. SAEs were recorded beginning at the time the subject signed the informed consent form through 30 days following the last study visit. Non-serious AEs were recorded from the time of informed consent through the last study visit. TEAEs are presented. 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 at the first dose but increased in severity during the study.

Additional Information

Kim Mooney, Associate Director, Patient Advocacy Medical Services

Ultragenyx Pharmaceutical Inc

Phone: 408-981-3526

Email: [email protected]

Results disclosure agreements

Principal investigator is a sponsor employee
Publication restrictions are in place

Restriction type: GT60