The purpose of this study is to evaluate the efficacy and safety of INCB054707 in participants with prurigo nodularis over a 16-week double-blind placebo-controlled treatment period, followed by a 24 -week single blind extension period.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
146
Oral; Tablet
Oral; Tablet
Percentage of Participants Achieving ≥4-point Improvement in Itch Numerical Rating Scale (NRS) Score at Week 16
Each evening, the participants assessed their worst level of itch during the past 24 hours on a scale of 0 (no itch) to 10 (worst itch imaginable). The Baseline Itch NRS score was determined by averaging the 7 daily Itch NRS scores before Day 1 (i.e., Day -7 to Day -1). If ≥4 of the 7 days of the daily Itch NRS scores were missing prior to Day 1, then the Baseline Itch NRS score was set to "missing." The by-visit Itch NRS score for postbaseline visits was determined by averaging the 7 daily Itch NRS scores before the visit day. If 4 or more daily Itch NRS scores out of the 7 days before the visit day were missing, the Itch NRS score at the visit was set to missing.
Time frame: Baseline; Week 16
Percentage of Participants Achieving Investigator's Global Assessment-Treatment Success (IGA-TS) (IGA Score of 0 or 1 With a ≥2-grade Improvement From Baseline) at Week 16
The IGA for chronic prurigo considers the number of pruriginous lesions, which includes papules, nodules, plaques, umbilicated ulcers, and ulcers, and uses them as an overall severity rating on a scale of 0 to 4. 0: clear; no pruriginous lesions (0 lesions). 1: almost clear; rare palpable pruriginous lesions (approximately 1-5 lesions). 2: mild; few palpable pruriginous lesions (approximately 6-19 lesions). 3: moderate: many palpable pruriginous lesions (approximately 20-100 lesions). 4: severe; abundant palpable pruriginous lesions (over 100 lesions). The IGA-TS is defined as an IGA score of 0 or 1 with a ≥2-grade improvement from Baseline.
Time frame: Baseline; Week 16
Time to ≥4-point Improvement From Baseline in Itch NRS Score
Each evening, the participants assessed their worst level of itch during the past 24 hours on a scale of 0 (no itch) to 10 (worst itch imaginable). The Baseline Itch NRS score was determined by averaging the 7 daily Itch NRS scores before Day 1 (i.e., Day -7 to Day -1). If ≥4 of the 7 days of the daily Itch NRS scores were missing prior to Day 1, then the Baseline Itch NRS score was set to "missing." The by-visit Itch NRS score for postbaseline visits was determined by averaging the 7 daily Itch NRS scores before the visit day. If 4 or more daily Itch NRS scores out of the 7 days before the visit day were missing, the Itch NRS score at the visit was set to missing.
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Investigative Site US010
Phoenix, Arizona, United States
Investigative Site US024
Phoenix, Arizona, United States
Investigative Site US001
Fountain Valley, California, United States
Investigative Site US014
Sacramento, California, United States
Investigative Site US019
Fort Lauderdale, Florida, United States
Investigative Site US016
Miami, Florida, United States
Investigative Site US013
Miramar, Florida, United States
Investigative Site US009
Tampa, Florida, United States
Investigative Site 1071320
Newnan, Georgia, United States
Investigative Site US008
Plainfield, Indiana, United States
...and 39 more locations
Time frame: up to 122 days
PC Period: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)
An adverse event (AE) is any untoward medical occurrence associated with the use of a drug in humans, whether or not it is considered drug related. An AE can therefore be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study drug. A TEAE is any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug up to 30 days after the last dose of study drug.
Time frame: up to 152 days
PC Period: Number of Participants With Any ≥Grade 3 TEAE
A TEAE is any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug up to 30 days after the last dose of study drug. The severity of AEs was assessed using Common Terminology Criteria for Adverse Events version 5.0 Grades 1 through 5. The investigator made an assessment of intensity for each AE and serious adverse event (SAE) reported during the study and assigned it to 1 of the following categories. Grade 1: mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; treatment not indicated. Grade 2: moderate; minimal, local, or noninvasive treatment indicated; limiting age-appropriate activities of daily living. Grade 3: severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living. Grade 4: life-threatening consequences; urgent treatment indicated. Grade 5: fatal.
Time frame: up to 152 days
Extension Period: Number of Participants With Any TEAE
An AE is any untoward medical occurrence associated with the use of a drug in humans, whether or not it is considered drug related. An AE can therefore be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study drug. A TEAE is any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug up to 30 days after the last dose of study drug.
Time frame: up to 215 days
Extension Period: Number of Participants With Any ≥Grade 3 TEAE
A TEAE is any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug up to 30 days after the last dose of study drug. The severity of AEs was assessed using Common Terminology Criteria for Adverse Events version 5.0 Grades 1 through 5. The investigator made an assessment of intensity for each AE and serious adverse event (SAE) reported during the study and assigned it to 1 of the following categories. Grade 1: mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; treatment not indicated. Grade 2: moderate; minimal, local, or noninvasive treatment indicated; limiting age-appropriate activities of daily living. Grade 3: severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living. Grade 4: life-threatening consequences; urgent treatment indicated. Grade 5: fatal.
Time frame: up to 215 days