Clinical Trial Results:
A national prospective study of patients with hepatitis induced by immune checkpoint inhibitors; Characterization of liver injury, outcome of therapy and randomization to either prednisolone or mycophenolate mofetil treatment in case of relapse
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Summary
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EudraCT number |
2020-004483-26 |
Trial protocol |
DK |
Global end of trial date |
06 Sep 2024
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Results information
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Results version number |
v1(current) |
This version publication date |
16 Nov 2025
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First version publication date |
16 Nov 2025
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Other versions |
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Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
AA2032
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT04810156 | ||
WHO universal trial number (UTN) |
- | ||
Other trial identifiers |
The Danish Medical Agencies: 2020092719, Ethical Committee of the Capital Region of Denmark: H-20062916, the Capital Region's Data Unit: P-2020-959 | ||
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Sponsors
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Sponsor organisation name |
National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology
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Sponsor organisation address |
Borgmester Ib Juuls Vej 9, 4th floor, Herlev, Denmark, 2730
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Public contact |
Professor Inge Marie Svane, MD, PhD, National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, 45 38682971, Inge.Marie.Svane@regionh.dk
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Scientific contact |
Professor Inge Marie Svane, MD, PhD, National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, 45 38682131, Inge.Marie.Svane@regionh.dk
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
06 Sep 2024
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
06 Sep 2024
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Global end of trial reached? |
Yes
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Global end of trial date |
06 Sep 2024
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Was the trial ended prematurely? |
Yes
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General information about the trial
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Main objective of the trial |
This study is performed to evaluate the crucially important question of which patients with immune-related hepatitis will respond to standard treatment with steroids and who needs treatment with a second line immunosuppressive agent in this case steroids plus mycophenolate mofetil. Treatment efficacy is evaluated as the percentage reduction in liver transaminases or bilirubin, assessed by the number of days to achieve a ≥20% reduction in either ALT, AST, or bilirubin.
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Protection of trial subjects |
The clinical trial was conducted in accordance with the Declaration of Helsinki and Good Clinical Practice (GCP) guidelines. The study protocol, informed consent forms, and all patient materials were reviewed and approved by the Ethics Committee and the Danish Medical Agency prior to trial initiation. Patient confidentiality was maintained by the use of coded identifiers, and all personal data were handled in compliance with the data protection legislation through the use of the RedCap database.
Written informed consent was obtained from all patients before any study-related procedures. In addition to the general study consent, participants provided specific written consent for liver biopsy and for the collection and analysis of blood samples for investigational purposes. Patients were fully informed of the nature, purpose, and potential risks of these procedures, as well as their right to withdraw consent at any time without consequences for their future medical care. Patients receiving anticoagulant therapy had treatment temporarily paused according to local clinical guidelines before undergoing liver biopsy to minimize the risk of bleeding. All patients were offered prophylactic therapy (proton pump inhibitors, calcium and vitamin D supplements) to reduce risk of gastroduodenal ulcers and osteoporosis.
The protection and safety of trial patients were monitored by the GCP unit through regular monitoring visits, including safety reporting, and adherence to approved procedures. All adverse events were recorded and evaluated for seriousness and causality.
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Background therapy |
Immune-related hepatitis is among the most common immune-related adverse events (irAEs) associated with immune checkpoint inhibitor (ICI) therapy in patients with cancer. It accounts for approximately 20% of fatal irAE cases and often necessitates discontinuation of ICIs. The condition is characterized by elevated alanine aminotransferase (ALT), aspartate aminotransferase (AST), and/or alkaline phosphatase (ALP) levels, with or without increased bilirubin, following ICI exposure and after exclusion of other causes of liver injury. Ir-hepatitis is observed in up to 15–23% of patients treated with a combination of anti-cytotoxic T-lymphocyte-associated protein 4 (anti-CTLA-4) and anti-programmed cell death protein-1 (anti-PD-1) with grade 3-4 occurring in 6–12% of patients, whereas only 4–9% of patients treated with monotherapy develop ir-hepatitis (grade 3–4: 1–4%). The underlying mechanisms remain incompletely understood but are thought to reflect immune activation pathways responsible for the antitumor effects of ICIs. According to international guidelines, grade 3–4 ir-hepatitis requires permanent discontinuation of ICIs, hospitalization, and treatment with intravenous methylprednisolone (1–2 mg/kg/day). However, 23–35% of patients are steroid-resistant or steroid-dependent and require additional immunosuppressive therapy. Mycophenolate mofetil (MMF) is the recommended second-line treatment, whereas the more T-cell–targeted immunosuppressant tacrolimus is considered third line. To date, no clinical study has directly compared the efficacy of MMF and tacrolimus in patients with steroid-resistant ir-hepatitis. This prospective study aimed to characterize immune-related hepatitis and its clinical phenotypes and to evaluate treatment outcomes in patients with ICI-induced grade 3–4 ir-hepatitis. | ||
Evidence for comparator |
The study was initially designed to randomize patients with steroid-resistant or steroid-dependent immune-related hepatitis to receive additional treatment with either mycophenolate mofetil (MMF) or tacrolimus, respectively. However, due to a slower-than-expected recruitment rate, this randomization was cancelled. Instead, these patients received MMF as standard-of-care as proposed by international guidelines. In a subsequent protocol amendment, the study design was modified to include randomization of patients with relapsing immune-related hepatitis (also referred to as steroid-dependent cases) to receive either an increased dose of corticosteroids or MMF (Cohort B). Nevertheless, this part of the study was never initiated due to limited available resources. | ||
Actual start date of recruitment |
26 Apr 2021
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Denmark: 34
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Worldwide total number of subjects |
34
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EEA total number of subjects |
34
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
12
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From 65 to 84 years |
22
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85 years and over |
0
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Recruitment
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Recruitment details |
Patients were recruited from Apr 2021 to Jan 2024 at the Departments of Oncology and Gastroenterology at Herlev Hospital, Rigshospitalet, and Aarhus University Hospital, Denmark. 47 patients were screened; 37 patients met criteria and started therapy; 3 patients were later excluded (inaccessible liver biopsy, n=2, and non-adherence to therapy, n=1) | ||||||
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Pre-assignment
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Screening details |
Patients with solid cancers who developed ICI-induced ≥grade 3 hepatitis within 6 months and were willing to undergo liver biopsy were screened by physical exam, detailed history, CT/US scan and comprehensive blood tests. | ||||||
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Pre-assignment period milestones
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Number of subjects started |
37 [1] | ||||||
Number of subjects completed |
34 | ||||||
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Pre-assignment subject non-completion reasons
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Reason: Number of subjects |
Physician decision: 2 | ||||||
Reason: Number of subjects |
non-compliance: 1 | ||||||
| Notes [1] - The number of subjects reported to have started the pre-assignment period are not the same as the worldwide number enrolled in the trial. It is expected that these numbers will be the same. Justification: Three patients were later excluded due to inaccessible liver biopsy and non-adherence to treatment and therefore not included in the trial data. |
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Period 1
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Period 1 title |
overall trial (overall period)
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Is this the baseline period? |
Yes | ||||||
Allocation method |
Non-randomised - controlled
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Blinding used |
Not blinded | ||||||
Blinding implementation details |
NA
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Arms
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Arm title
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Immune-related hepatitis | ||||||
Arm description |
All patients received intravenous methylprednisolone at a dose of 2 mg/kg/day for a minimum of 72 hours (three boluses). Treatment response was evaluated after 72 hours of steroid initiation. In patients with mixed or cholestatic drug-induced liver injury phenotypes, additional weight-based oral ursodeoxycholic acid (UDCA) was administered, and treatment response was re-evaluated on Day 7. Patients demonstrating adequate response transitioned to a tapering regimen of oral prednisolone. In cases of insufficient response, defined as <20% decline in ALT, AST, or bilirubin, mycophenolate mofetil (MMF) was initiated as second-line therapy. | ||||||
Arm type |
Experimental | ||||||
Investigational medicinal product name |
prednisolone
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Investigational medicinal product code |
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Other name |
methylprednisolone, solu-medrol, steroids
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Pharmaceutical forms |
Capsule, Concentrate and solvent for solution for infusion
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Routes of administration |
Intravenous use, Oral use
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Dosage and administration details |
All patients discontinued ICI therapy and received IV methylprednisolone (Solu-Medrol) as a loading dose of 2 mg/kg/day for a minimum of 72 hours (three boluses) before treatment evaluation. For patients with a mixed or cholestatic drug-induced liver injury phenotype, additional weight-based peroral doses of ursodeoxycholic acid (UDCA) were administered. These UDCA-patients were evaluated twice (after 72 hours and day 7) due to the known longer time to response in these phenotypes. Once a response was achieved (defined as a reduction of more than 20% in ALT, AST, or bilirubin levels), patients transitioned to a tapering regimen of oral prednisolone for 4–6 weeks (the dosage of prednisolone may vary according to the levels of liver enzymes, other irAEs, and patient condition).
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Investigational medicinal product name |
mycophenolate mofetil
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Capsule
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Routes of administration |
Oral use
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Dosage and administration details |
Treatment was initiated at 500 mg twice daily on Day 1, increased to 1000 mg twice daily on Day 2. This dosage was continued until 8 weeks after discontinuation of prednisolone. Dose reductions were permitted in the event of adverse reactions or tolerability issues.
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Baseline characteristics reporting groups
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Reporting group title |
overall trial
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Reporting group description |
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Subject analysis sets
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Subject analysis set title |
Steroid-responders
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Subject analysis set type |
Sub-group analysis | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
Patients demonstrating a ≥20% reduction of either ALT, AST, or bilirubin within 72 hours were defined as "steroid-responders". Notably, patients with mixed or cholestatic phenotypes (see definition below), who had a potentially slower treatment response, were included as steroid-responders if they achieved ≥20% reduction of either ALT, AST, or bilirubin within 7 days.
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Subject analysis set title |
Steroid-unresponsive
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Subject analysis set type |
Sub-group analysis | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
Patients who did not have a ≥20% reduction of ALT, AST, or bilirubin levels at the 72-hour evaluation or day 7 (mixed and cholestatic DILI) were classified as "steroid-unresponsive".
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Subject analysis set title |
Steroid-dependent
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Subject analysis set type |
Sub-group analysis | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
Patients experiencing a recurrence of CTCAE grade ≥2 ir-hepatitis during tapering of prednisolone or within four weeks of discontinuing prednisolone were characterized as "steroid-dependent".
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End points reporting groups
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Reporting group title |
Immune-related hepatitis
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Reporting group description |
All patients received intravenous methylprednisolone at a dose of 2 mg/kg/day for a minimum of 72 hours (three boluses). Treatment response was evaluated after 72 hours of steroid initiation. In patients with mixed or cholestatic drug-induced liver injury phenotypes, additional weight-based oral ursodeoxycholic acid (UDCA) was administered, and treatment response was re-evaluated on Day 7. Patients demonstrating adequate response transitioned to a tapering regimen of oral prednisolone. In cases of insufficient response, defined as <20% decline in ALT, AST, or bilirubin, mycophenolate mofetil (MMF) was initiated as second-line therapy. | ||
Subject analysis set title |
Steroid-responders
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Subject analysis set type |
Sub-group analysis | ||
Subject analysis set description |
Patients demonstrating a ≥20% reduction of either ALT, AST, or bilirubin within 72 hours were defined as "steroid-responders". Notably, patients with mixed or cholestatic phenotypes (see definition below), who had a potentially slower treatment response, were included as steroid-responders if they achieved ≥20% reduction of either ALT, AST, or bilirubin within 7 days.
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Subject analysis set title |
Steroid-unresponsive
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Subject analysis set type |
Sub-group analysis | ||
Subject analysis set description |
Patients who did not have a ≥20% reduction of ALT, AST, or bilirubin levels at the 72-hour evaluation or day 7 (mixed and cholestatic DILI) were classified as "steroid-unresponsive".
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Subject analysis set title |
Steroid-dependent
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Subject analysis set type |
Sub-group analysis | ||
Subject analysis set description |
Patients experiencing a recurrence of CTCAE grade ≥2 ir-hepatitis during tapering of prednisolone or within four weeks of discontinuing prednisolone were characterized as "steroid-dependent".
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End point title |
Response rate to steroids [1] | ||||||
End point description |
Response to steroid therapy, defined as the time (in days) from treatment initiation to the first occurrence of a ≥20% reduction in at least one of the following laboratory parameters: ALT, AST, or bilirubin. A response was considered achieved if this reduction occurred within three days of starting treatment.
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End point type |
Primary
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End point timeframe |
Apr 2021 to Sep 2024
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| Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: descriptive statistic - no statistical analysis for these points |
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| No statistical analyses for this end point | |||||||
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End point title |
Time to transition to oral prednisolone and discharge | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
apr 2021 - sept 2024
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| No statistical analyses for this end point | |||||||
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End point title |
Recurrence rate of ir-hepatitis | ||||||
End point description |
The number of patients experiencing relapse of ir-hepatitis CTCAE grade ≥2, excluding other aetiologies for liver injury.
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End point type |
Secondary
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End point timeframe |
apr 2021 - sept 2024
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| No statistical analyses for this end point | |||||||
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End point title |
cumulative steroid equivalents and mycophenolate mofetil doses | ||||||
End point description |
cumulative steroid equivalents and MMF doses
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End point type |
Other pre-specified
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End point timeframe |
apr 2021 - sept 2024
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| No statistical analyses for this end point | |||||||
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Adverse events information
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Timeframe for reporting adverse events |
Adverse events were collected and reported over a 3-month follow-up period from initiation of steroids for all patients. For patients who received mycophenolate mofetil (MMF), safety data were collected and reported up to 6 months following MMF initiation
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Adverse event reporting additional description |
AEs of Grade ≥ 3 and considered MMF-related were recorded in the eCRF and patient electronic journal at each consultation and followed until improvement to Grade ≤ 2 for over 10 weeks. Non-serious AEs not meeting the protocol-defined reporting threshold (Grade ≥3 and drug-related) were recorded in the CTCAE log. All drug-related AEs are reported:
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dictionary used for adverse event reporting
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Dictionary name |
CTCAE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
5.0
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Reporting groups
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Reporting group title |
all patients
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Reporting group description |
Patients with cancer and suspected Grade ≥3 immune-related hepatitis induced by immune checkpoint inhibitor therapy. All patients were treated with high-dose steroids (methylprednisolone 2 mg/kg, minimum of three doses) followed by a prednisolone tapering regimen. Patients who were steroid-resistant, steroid-unresponsive, or steroid-dependent received subsequent treatment with mycophenolate mofetil (MMF) at a total daily dose of 1000–2000 mg. 34 patients were included for study analyses. Three patients were excluded due to either inaccessibility for liver biopsy (n=2) or non-adherence to study treatment (n=1) - these patients are not included in the safety analysis. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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| Were there any global substantial amendments to the protocol? No | |||||||
Interruptions (globally) |
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| Were there any global interruptions to the trial? Yes | |||||||
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Limitations and caveats |
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| Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||||||
| A relatively small number of patients, especially in subgroups of steroid-unresponsive patients, hinders definitive conclusions | |||||||