To evaluate the safety and efficacy of ibrutinib in combination with prednisone in subjects with newly diagnosed moderate to severe cGVHD.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
193
Ibrutinib capsules administered orally daily
Placebo capsules administered orally daily
Prednisone administered daily
Primary Analysis: Response Rate at 48 Weeks
Response rate was defined as the percentage of participants who were responders. Responders were defined as participants who had a complete response (CR) or a partial response (PR) at 48 weeks without starting any subsequent therapy for cGVHD or having evidence of relapse of their underlying disease that was indication for transplant prior to response assessment at 48 weeks. Response was defined using the National Institutes of Health (NIH) Consensus Panel Chronic GVHD Activity Assessment (2014). Skin, mouth, liver, upper and lower gastrointestinal, esophagus, lung, eye, and joint/fascia are the organs or sites considered in evaluating overall response. CR is defined as resolution of all manifestations in each organ or site. PR is defined as improvement in at least 1 organ or site without progression in any other organ or site.
Time frame: 48 weeks (Cumulatively up to 30 March 2020)
Final Analysis: Response Rate at 48 Weeks
Response rate was defined as the percentage of participants who were responders. Responders were defined as participants who had a complete response (CR) or a partial response (PR) at 48 weeks without starting any subsequent therapy for cGVHD or having evidence of relapse of their underlying disease that was indication for transplant prior to response assessment at 48 weeks. Response was defined using the National Institutes of Health (NIH) Consensus Panel Chronic GVHD Activity Assessment (2014). Skin, mouth, liver, upper and lower gastrointestinal, esophagus, lung, eye, and joint/fascia are the organs or sites considered in evaluating overall response. CR is defined as resolution of all manifestations in each organ or site. PR is defined as improvement in at least 1 organ or site without progression in any other organ or site.
Time frame: 48 weeks (Cumulatively up to 12 July 2021)
Primary Analysis: Cumulative Incidence of Withdrawal of All Corticosteroids for Treatment of cGVHD
The cumulative incidence of withdrawal of all corticosteroids (95% confidence interval \[CI\]) was calculated using SAS lifetest procedure adjusting for competing risks including death, cGVHD progression, relapse of underlying disease, and start of subsequent cGVHD therapy. Data presented are the estimated proportion of participants withdrawing all corticosteroids at given time point. The time to withdrawal of corticosteroids is computed from randomization date to the first date of withdrawal of all corticosteroids for treatment of cGVHD to 0 mg daily for at least 30 days.
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Arizona Oncology - Scottsdale - Cancer Transplant Institute Location /ID# 1140-1120
Scottsdale, Arizona, United States
LPCH Stanford /ID# 1140-1128
Palo Alto, California, United States
Ucsf /Id# 1140-0003
San Francisco, California, United States
Stanford University/Stanford Cancer Center, Pasteur Drive /ID# 1140-0400
Stanford, California, United States
UCHSC Anschultz Cancer Pavilion /ID# 1140-0068
Aurora, Colorado, United States
Children's National Medical Center /ID# 1140-1122
Washington D.C., District of Columbia, United States
Jackson Memorial Hospital, University of Miami /ID# 1140-0647
Miami, Florida, United States
Florida Hospital Cancer Institute/Adventist Health System/Sunbelt, Inc /ID# 1140-1121
Orlando, Florida, United States
Emory University, Winship Cancer Institute /ID# 1140-0033
Atlanta, Georgia, United States
Emory University/Winship Cancer Institute /ID# 1140-1179
Atlanta, Georgia, United States
...and 92 more locations
Time frame: Months 3, 6, 9, 12, 15, 18, 21, 24 (Cumulatively up to 30 March 2020)
Final Analysis: Cumulative Incidence of Withdrawal of All Corticosteroids for Treatment of cGVHD
The cumulative incidence of withdrawal of all corticosteroids (95% confidence interval \[CI\]) was calculated using SAS lifetest procedure adjusting for competing risks including death, cGVHD progression, relapse of underlying disease, and start of subsequent cGVHD therapy. Data presented are the estimated proportion of participants withdrawing all corticosteroids at given time point. The time to withdrawal of corticosteroids is computed from randomization date to the first date of withdrawal of all corticosteroids for treatment of cGVHD to 0 mg daily for at least 30 days.
Time frame: Months 3, 6, 9, 12, 15, 18, 21, 24 (Cumulatively up to 12 July 2021)
Primary Analysis: Cumulative Incidence of Withdrawal of All Immunosuppressants
The cumulative incidence of withdrawal of all immunosuppressants (95% CI) was calculated using SAS lifetest procedure adjusting for competing risks including death, cGVHD progression, relapse of underlying disease, and start of subsequent cGVHD therapy. Data presented are the estimated proportion of participants withdrawing all immunosuppressants at a given time point. The time to withdrawal of all immunosuppressants is computed from randomization date to the first date of withdrawal of all immunosuppressants for treatment of cGVHD, sustained for at least 30 days. All immunosuppressants include corticosteroids but they do not include ibrutinib.
Time frame: Months 3, 6, 9, 12, 15, 18, 21, 24 (cumulatively up to 30 March 2020)
Final Analysis: Cumulative Incidence of Withdrawal of All Immunosuppressants
The cumulative incidence of withdrawal of all immunosuppressants (95% CI) was calculated using SAS lifetest procedure adjusting for competing risks including death, cGVHD progression, relapse of underlying disease, and start of subsequent cGVHD therapy. Data presented are the estimated proportion of participants withdrawing all immunosuppressants at a given time point. The time to withdrawal of all immunosuppressants is computed from randomization date to the first date of withdrawal of all immunosuppressants for treatment of cGVHD, sustained for at least 30 days. All immunosuppressants include corticosteroids but they do not include ibrutinib.
Time frame: Months 3, 6, 9, 12, 15, 18, 21, 24 (Cumulatively up to 12 July 2021)
Primary Analysis: Response Rate at 24 Weeks
Response rate was defined as the percentage of participants who were responders. Responders were defined as participants who had a CR or PR at 24 weeks without starting any subsequent therapy for cGVHD or having evidence of relapse of their underlying disease that was indication for transplant prior to response assessment at 24 weeks. Response was defined using the National Institutes of Health (NIH) Consensus Panel Chronic GVHD Activity Assessment (2014). Skin, mouth, liver, upper and lower gastrointestinal, esophagus, lung, eye, and joint/fascia are the organs or sites considered in evaluating overall response. CR is defined as resolution of all manifestations in each organ or site. PR is defined as improvement in at least 1 organ or site without progression in any other organ or site.
Time frame: 24 weeks (Cumulatively up to 30 March 2020)
Final Analysis: Response Rate at 24 Weeks
Response rate was defined as the percentage of participants who were responders. Responders were defined as participants who had a CR or PR at 24 weeks without starting any subsequent therapy for cGVHD or having evidence of relapse of their underlying disease that was indication for transplant prior to response assessment at 24 weeks. Response was defined using the National Institutes of Health (NIH) Consensus Panel Chronic GVHD Activity Assessment (2014). Skin, mouth, liver, upper and lower gastrointestinal, esophagus, lung, eye, and joint/fascia are the organs or sites considered in evaluating overall response. CR is defined as resolution of all manifestations in each organ or site. PR is defined as improvement in at least 1 organ or site without progression in any other organ or site.
Time frame: 24 weeks (Cumulatively up to 12 July 2021)
Primary Analysis: Percentage of Participants With Improvement in Overall Score on Lee cGVHD Symptom Scale at Two Consecutive Visits
Clinically meaningful improvement on Lee cGVHD symptom scale was defined as at least a 7-point decrease in Lee Symptom Scale overall summary score on at least 2 consecutive visits, not preceded by progressive disease, relapse of underlying disease or start of subsequent cGVHD treatment. The Lee cGVHD Symptom Scale score has 7 subscales (Skin, Eyes and Mouth, Breathing, Eating and Digestion, Muscles and Joints, Energy, and Mental and Emotional) with ratings as follows: 0- Not at all, 1- Slightly, 2 Moderately, 3 Quite a bit, 4-Extremely, with lower values representing a better outcome. A score is calculated for each subscale by taking the mean of all items completed if more than 50% were answered and normalizing to a 0 to 100 scale. An overall score is calculated as the average of these 7 subscales if at least 4 subscales have valid scores.
Time frame: Assessed at Weeks 5, 13, 25, 37, 49, 30 days after the last dose of study drug, and then every 12 weeks of follow-up until progressed disease. (Cumulatively up to 30 March 2020)
Final Analysis: Percentage of Participants With Improvement in Overall Score on Lee cGVHD Symptom Scale at Two Consecutive Visits
Clinically meaningful improvement on Lee cGVHD symptom scale was defined as at least a 7-point decrease in Lee Symptom Scale overall summary score on at least 2 consecutive visits, not preceded by progressive disease, relapse of underlying disease or start of subsequent cGVHD treatment. The Lee cGVHD Symptom Scale score has 7 subscales (Skin, Eyes and Mouth, Breathing, Eating and Digestion, Muscles and Joints, Energy, and Mental and Emotional) with ratings as follows: 0- Not at all, 1- Slightly, 2 Moderately, 3 Quite a bit, 4-Extremely, with lower values representing a better outcome. A score is calculated for each subscale by taking the mean of all items completed if more than 50% were answered and normalizing to a 0 to 100 scale. An overall score is calculated as the average of these 7 subscales if at least 4 subscales have valid scores.
Time frame: Assessed at Weeks 5, 13, 25, 37, 49, 30 days after the last dose of study drug, and then every 12 weeks of follow-up until progressed disease. (Cumulatively up to 12 July 2021)
Primary Analysis: Percentage of Participants Who Achieved Reduction of Prednisone Dose Level to Less Than 0.15 mg/kg/Day at 24 Weeks Sustained for at Least 30 Days
Time frame: 24 weeks (Cumulatively up to 30 March 2020)
Final Analysis: Percentage of Participants Who Achieved Reduction of Prednisone Dose Level to Less Than 0.15 mg/kg/Day at 24 Weeks Sustained for at Least 30 Days
Time frame: 24 weeks (Cumulatively up to 12 July 2021)
Primary Analysis: Overall Survival (OS)
OS was defined as the time of randomization until the time of death due to any cause, in months.
Time frame: Median time on study (cumulatively up to 30 March 2020) was 19.8 months and 18.4 months for the Ibrutinib + Prednisone and Placebo + Prednisone arms, respectively.
Final Analysis: OS
OS was defined as the time of randomization until the time of death due to any cause, in months.
Time frame: Median time on study (cumulatively up to 12 July 2021) was 33.1 months and 32.5 months for the Ibrutinib + Prednisone and Placebo + Prednisone arms, respectively.
Primary Analysis: Duration of Response (DOR) for Participants Who Had PR or CR at Any Time
Response was defined using the NIH Consensus Panel Chronic GVHD Activity Assessment (2014). Skin, mouth, liver, upper and lower GI, esophagus, lung, eye, and joint/fascia are the organs or sites considered in evaluating overall response. CR was defined as resolution of all manifestations in each organ or site. PR was defined as improvement in at least 1 organ or site without progression in any other organ or site. Duration of response was estimated by Kaplan-Meier methodology.
Time frame: Response was assessed every 4 weeks from Week 5 through Week 25, Week 37, Week 49, 30 days after the last dose of study drug, and then every 12 weeks of follow-up until progressed disease. (Cumulatively up to 30 March 2020)
Final Analysis: DOR for Participants Who Had PR or CR at Any Time
Response was defined using the NIH Consensus Panel Chronic GVHD Activity Assessment (2014). Skin, mouth, liver, upper and lower GI, esophagus, lung, eye, and joint/fascia are the organs or sites considered in evaluating overall response. CR was defined as resolution of all manifestations in each organ or site. PR was defined as improvement in at least 1 organ or site without progression in any other organ or site. Duration of response was estimated by Kaplan-Meier methodology.
Time frame: Response was assessed every 4 weeks from Week 5 through Week 25, Week 37, Week 49, 30 days after the last dose of study drug, and then every 12 weeks of follow-up until progressed disease. (Cumulatively up to 12 July 2021)
Primary Analysis: Number of Participants With Treatment-Emergent Adverse Events (AEs), Serious AEs (SAEs), and Discontinuations Due to AEs Placebo in Combination With Prednisone
AE: any untoward medical occurrence, which does not necessarily have a causal relationship with this treatment. SAE: any untoward medical occurrence that at any dose: results in death; is life-threatening; requires in-patient hospitalization \>24 hours or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; is an important medical event. Severity was graded according to the Common Terminology Criteria for Adverse Events version 4.03 (grade 1=mild, grade 2=moderate, grade 3=severe, grade 4=life-threatening, grade 5=death). Treatment-related events are those that were possibly related or related to study treatment per investigator's judgment. Treatment emergent AEs (TEAEs) occurred from the first dose of study drug up to 30 days after the last dose of study drug.
Time frame: From first dose of study drug through the end of treatment plus 30 days. As of data cutoff (cumulatively up to 30 March 2020), median ibrutinib treatment duration was 5.4 months and the median placebo treatment duration was 6.4 months.
Final Analysis: Number of Participants With Treatment-Emergent Adverse Events (AEs), Serious AEs (SAEs), and Discontinuations Due to AEs Placebo in Combination With Prednisone
AE: any untoward medical occurrence, which does not necessarily have a causal relationship with this treatment. SAE: any untoward medical occurrence that at any dose: results in death; is life-threatening; requires in-patient hospitalization \>24 hours or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; is an important medical event. Severity was graded according to the Common Terminology Criteria for Adverse Events version 4.03 (grade 1=mild, grade 2=moderate, grade 3=severe, grade 4=life-threatening, grade 5=death). Treatment-related events are those that were possibly related or related to study treatment per investigator's judgment. Treatment emergent AEs (TEAEs) occurred from the first dose of study drug up to 30 days after the last dose of study drug.
Time frame: From first dose of study drug through the end of treatment plus 30 days. As of data cutoff (cumulatively up to 12 July 2021), median ibrutinib treatment duration was 5.4 months and the median placebo treatment duration was 6.4 months.