Trial Outcomes & Findings for An Open-Label and Long-Term Extension Study to Evaluate the Efficacy and Safety of Ustekinumab in the Treatment of Patients With Ichthyoses (NCT NCT04549792)

NCT ID: NCT04549792

Last Updated: 2025-02-12

Results Overview

To evaluate the efficacy of ustekinumab for ichthyosis, as measured by an at least 50% reduction in severity using the Ichthyosis Severity Score (ISS) measure. The ISS measures from 0-32, with 0 being the least clinically severe and 32 being the most clinically severe.

Recruitment status

COMPLETED

Study phase

EARLY_PHASE1

Target enrollment

13 participants

Primary outcome timeframe

7 months after initiation of study drug

Results posted on

2025-02-12

Participant Flow

Participant milestones

Participant milestones
Measure
Open Label
Ustekinumab: Each subject will receive ustekinumab at Baseline (Day 0) and Months 1, 3, 5, 7, 9, and 11. During the LTE, subjects will receive injections every 8 weeks for one year: Month 13, Month 15, Month 17, Month 19, Month 21, and Month 23. Subjects will come back in for a follow-up visit at Month 25 for an end of study visit (no drug administration).
Overall Study
STARTED
13
Overall Study
COMPLETED
13
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

An Open-Label and Long-Term Extension Study to Evaluate the Efficacy and Safety of Ustekinumab in the Treatment of Patients With Ichthyoses

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Open Label
n=13 Participants
Ustekinumab: Each subject will receive ustekinumab at Baseline (Day 0) and Months 1, 3, 5, 7, 9, and 11. During the LTE, subjects will receive injections every 8 weeks for one year: Month 13, Month 15, Month 17, Month 19, Month 21, and Month 23. Subjects will come back in for a follow-up visit at Month 25 for an end of study visit (no drug administration).
Subtype
NIPAL4-CIE
1 Participants
n=5 Participants
Subtype
GJA-1-Erythrokeratodermia variabilis et progressiva
1 Participants
n=5 Participants
Age, Continuous
11.8 years
STANDARD_DEVIATION 7.8 • n=5 Participants
Sex: Female, Male
Female
7 Participants
n=5 Participants
Sex: Female, Male
Male
6 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
Race · Black
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · White
9 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · Asian
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · Mixed
2 Participants
n=5 Participants
Region of Enrollment
United States
13 participants
n=5 Participants
Subtype
Harlequin Ichthyosis (HI)
6 Participants
n=5 Participants
Subtype
Netherton Syndrome (NS)
3 Participants
n=5 Participants
Subtype
KRT10-EI/KRT1-EI
2 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 7 months after initiation of study drug

To evaluate the efficacy of ustekinumab for ichthyosis, as measured by an at least 50% reduction in severity using the Ichthyosis Severity Score (ISS) measure. The ISS measures from 0-32, with 0 being the least clinically severe and 32 being the most clinically severe.

Outcome measures

Outcome measures
Measure
Open Label
n=13 Participants
Ustekinumab: Each subject will receive ustekinumab at Baseline (Day 0) and Months 1, 3, 5, 7, 9, and 11. During the LTE, subjects will receive injections every 8 weeks for one year: Month 13, Month 15, Month 17, Month 19, Month 21, and Month 23. Subjects will come back in for a follow-up visit at Month 25 for an end of study visit (no drug administration).
Reduction in Total Ichthyosis Severity Score
-12.2 units on a scale
Standard Deviation 29.9

PRIMARY outcome

Timeframe: 7 months after initiation of study drug

To evaluate the safety of ustekinumab for ichthyosis, based on occurrence of bacterial and fungal infections

Outcome measures

Outcome measures
Measure
Open Label
n=13 Participants
Ustekinumab: Each subject will receive ustekinumab at Baseline (Day 0) and Months 1, 3, 5, 7, 9, and 11. During the LTE, subjects will receive injections every 8 weeks for one year: Month 13, Month 15, Month 17, Month 19, Month 21, and Month 23. Subjects will come back in for a follow-up visit at Month 25 for an end of study visit (no drug administration).
Occurence of Bacterial and Fungal Infections
Superficial skin infections
3 infections
Occurence of Bacterial and Fungal Infections
Streptococcal throat infection
2 infections
Occurence of Bacterial and Fungal Infections
Onychomycosis
1 infections

Adverse Events

Open Label

Serious events: 2 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Open Label
n=13 participants at risk
Ustekinumab: Each subject will receive ustekinumab at Baseline (Day 0) and Months 1, 3, 5, 7, 9, and 11. During the LTE, subjects will receive injections every 8 weeks for one year: Month 13, Month 15, Month 17, Month 19, Month 21, and Month 23. Subjects will come back in for a follow-up visit at Month 25 for an end of study visit (no drug administration).
Infections and infestations
Hospitalization secondary to sepsis
15.4%
2/13 • Number of events 7 • 100 weeks

Other adverse events

Other adverse events
Measure
Open Label
n=13 participants at risk
Ustekinumab: Each subject will receive ustekinumab at Baseline (Day 0) and Months 1, 3, 5, 7, 9, and 11. During the LTE, subjects will receive injections every 8 weeks for one year: Month 13, Month 15, Month 17, Month 19, Month 21, and Month 23. Subjects will come back in for a follow-up visit at Month 25 for an end of study visit (no drug administration).
General disorders
Headache
23.1%
3/13 • Number of events 3 • 100 weeks
Gastrointestinal disorders
Abdominal pain
7.7%
1/13 • Number of events 1 • 100 weeks
Reproductive system and breast disorders
Amenorrhea
7.7%
1/13 • Number of events 1 • 100 weeks
Musculoskeletal and connective tissue disorders
Broken wrist
7.7%
1/13 • Number of events 1 • 100 weeks
Infections and infestations
COVID-19 Infection
7.7%
1/13 • Number of events 1 • 100 weeks
Eye disorders
Dry eyes
7.7%
1/13 • Number of events 1 • 100 weeks
Skin and subcutaneous tissue disorders
Pustular psoriasis like eruption
7.7%
1/13 • Number of events 1 • 100 weeks
General disorders
Heat exhaustion
7.7%
1/13 • Number of events 2 • 100 weeks
Skin and subcutaneous tissue disorders
Increased pain associated with ichthyosis
7.7%
1/13 • Number of events 1 • 100 weeks
Skin and subcutaneous tissue disorders
Miliaria
7.7%
1/13 • Number of events 1 • 100 weeks
Infections and infestations
Onychomycosis
7.7%
1/13 • Number of events 1 • 100 weeks
Surgical and medical procedures
Tooth extraction
7.7%
1/13 • Number of events 1 • 100 weeks
Skin and subcutaneous tissue disorders
Strep Throat Infection
7.7%
1/13 • Number of events 1 • 100 weeks
Skin and subcutaneous tissue disorders
Skin pustules
7.7%
1/13 • Number of events 1 • 100 weeks
Infections and infestations
Viral exanthem
7.7%
1/13 • Number of events 1 • 100 weeks
Infections and infestations
Viral gastroenteritis
7.7%
1/13 • Number of events 1 • 100 weeks
Skin and subcutaneous tissue disorders
Viral upper respiratory infection
23.1%
3/13 • Number of events 3 • 100 weeks
Skin and subcutaneous tissue disorders
Skin Infection
30.8%
4/13 • Number of events 4 • 100 weeks

Additional Information

Principal Investigator

Northwestern University

Phone: 312-503-5944

Results disclosure agreements

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