A Study to Evaluate the Efficacy and Safety of Imsidolimab (ANB019) in the Treatment of Participants With Ichthyosis

Ichthyosis Clinical Trial

Official title:

A Phase 2, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of ANB019 in the Treatment of Subjects With Ichthyosis

Clinical Trial Details — Status: Terminated

Administrative data

• NCT number: NCT04697056
• Other study ID #: ANB019-206
• Secondary ID: 2020-003476-41
• Status: Terminated
• Phase: Phase 2
• Start date: January 25, 2021
• Est. completion date: November 19, 2021

Study information

• Verified date: November 2022
• Source: AnaptysBio, Inc.
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Efficacy and Safety of imsidolimab in Participants with Ichthyosis

Description:

This is a Phase 2, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, and tolerability of imsidolimab compared with placebo in adolescent and adult participants with ichthyosis. This study will also characterize the pharmacokinetic (PK) profile of imsidolimab and explore the immune response to imsidolimab in participants with ichthyosis.

Recruitment information / eligibility

• Status: Terminated
• Enrollment: 5
• Est. completion date: November 19, 2021
• Est. primary completion date: November 19, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 12 Years to 75 Years

Eligibility

Inclusion Criteria:

• Diagnosis of Ichthyosis

• IASI total score = 18, erythema score = 2

• Participant has been using emollient daily for at least 1 week prior to Day 1 and agrees to continue using that same emollient daily at the same frequency throughout the study

Exclusion Criteria:

• A participant with ichthyosis vulgaris, X-linked ichthyosis, or lamellar ichthyosis will be excluded.

Related Conditions & MeSH terms

• Ichthyosis
• Ichthyosis, Lamellar

Intervention

Drug:
• Imsidolimab
Humanized Monoclonal Antibody

Biological:
• placebo
placebo

Locations

Country	Name	City	State
United States	Site 101	Chicago	Illinois
United States	Site 102	Columbus	Ohio
United States	Site 112	Miami	Florida
United States	Site 104	New Haven	Connecticut
United States	Site 106	Palo Alto	California
United States	Site 105	Salt Lake City	Utah
United States	Site 107	San Antonio	Texas

Sponsors (1)

Lead Sponsor	Collaborator
AnaptysBio, Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change From Baseline in Ichthyosis Area Severity Index (IASI) Total Score at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling & percentage of body surface area (BSA) affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 body regions (BR) [A1: head & neck (H&N), A2: upper limbs (UL), A3: trunk (T), A4: lower limbs (LL)]. Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value(0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6).Total extent was determined using multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-Erythema (E)= A1E x B1 x C1 + A2E x B2 x C2 + A3E x B3 x C3 + A4E x B4 x C4 (score 0 to 24) IASI-Scaling (S)= A1S x B1 X C1 + A2S x B2 x C2 + A3S x B3 x C3 + A4S x B4 x C4 (score 0 to 24) IASI total score= IASI-E + IASI-S score ranged from 0 - 48, higher score indicated worse disease state.	Baseline and Week 16
Secondary	Percent Change From Baseline in IASI Total Score at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling, & percentage of BSA affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 BR (A1: H&N, A2: UL, A3: T, A4: LL). Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value (0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6). Total extent was determined using a multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-E= A1E x B1 x C1 + A2E x B2 x C2 + A3E x B3 x C3 + A4E x B4 x C4 (score 0 to 24); IASI-S= A1S x B1 X C1 + A2S x B2 x C2 + A3S x B3 x C3 + A4S x B4 x C4 (score 0 to 24); IASI total score= IASI-E + IASI-S score ranged from 0 - 48, higher score indicated worse disease state.	Baseline and Week 16
Secondary	Percentage of Participants Achieving an Improvement of 50% From Baseline in IASI (IASI50) at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling, & percentage of BSA affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 BR (A1: H&N, A2: UL, A3: T, A4: LL). Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value (0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6). Total extent was determined using a multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-E= A1E x B1 x C1 + A2E x B2 x C2 + A3E x B3 x C3 + A4E x B4 x C4 (score 0 to 24); IASI-S= A1S x B1 X C1 + A2S x B2 x C2 + A3S x B3 x C3 + A4S x B4 x C4 (score 0 to 24); IASI total score= IASI-E + IASI-S score ranged from 0 - 48, higher score indicated worse disease state.	Week 16
Secondary	Change From Baseline in IASI-E Scores at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling, & percentage of BSA affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 BR (A1: H&N, A2: UL, A3: T, A4: LL). Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value (0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6). Total extent was determined using a multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-E= A1E x B1 x C1 + A2E x B2 x C2 + A3E x B3 x C3 + A4E x B4 x C4; IASI-E score ranged from 0 - 24, higher score indicated worse disease state.	Baseline and Week 16
Secondary	Change From Baseline in IASI-S Scores at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling, & percentage of BSA affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 BR (A1: H&N, A2: UL, A3: T, A4: LL). Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value (0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6). Total extent was determined using a multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-S= A1S x B1 X C1 + A2S x B2 x C2 + A3S x B3 x C3 + A4S x B4 x C4; IASI-S score ranged from 0 - 24, higher score indicated worse disease state.	Baseline and Week 16
Secondary	Percent Change From Baseline in IASI-E Scores at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling, & percentage of BSA affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 BR (A1: H&N, A2: UL, A3: T, A4: LL). Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value (0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6). Total extent was determined using a multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-E= A1E x B1 x C1 + A2E x B2 x C2 + A3E x B3 x C3 + A4E x B4 x C4; IASI-E score ranged from 0 - 24, higher score indicated worse disease state.	Baseline and Week 16
Secondary	Percent Change From Baseline in IASI-S Scores at Week 16	IASI quantified the severity of participants ichthyosis based on severity of erythema/scaling, & percentage of BSA affected. Degree of erythema & scaling scored from 0 (none) to 4 (very severe) for each of 4 BR (A1: H&N, A2: UL, A3: T, A4: LL). Percentage of BSA involved for each BR (B1: % in H&N, B2: % in UL, B3: % in T, B4: % in LL). Percentage involvement was assigned numerical value (0= 0, 1%-9%= 1, 10%-29%= 2, 30%-49%= 3, 50%-69%= 4, 70%-89%= 5, 90%-100%= 6). Total extent was determined using a multiplier considering % of total BSA by each BR (C1= 0.1 for H&N; C2= 0.2 for UL; C3= 0.3 for T; C4= 0.4 for LL).; IASI-S= A1S x B1 X C1 + A2S x B2 x C2 + A3S x B3 x C3 + A4S x B4 x C4; IASI-S score ranged from 0 - 24, higher score indicated worse disease state.	Baseline and Week 16
Secondary	Number of Participants With Treatment Emergent Adverse Events (TEAEs)	An AE was any untoward medical occurrence in a participant temporally associated with the use of a study treatment, whether or not considered related to the study treatment. An AE could therefore be any unfavorable and unintended sign (including abnormal laboratory finding), symptom, or disease temporally associated with use of study treatment that did not necessarily have a causal relationship with this treatment. An AE was considered "serious" if there was any of the following outcomes: death, life-threatening adverse event, Inpatient hospitalization or prolongation of existing hospitalization, persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, congenital anomaly/birth defect, other important medical events. An adverse event was considered TE if the date of onset was during or after first dose of study treatment, or if the AE present at baseline worsened in either intensity or frequency after first dose of study treatment.	From first dose up to study termination (maximum up to 9.4 weeks)