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Clinical Trial Results:
Randomised Trial of Anti-CD20 in C4d+ Chronic Allograft Nephropathy

Summary
EudraCT number
2006-002330-38
Trial protocol
GB  
Global end of trial date
09 Mar 2017

Results information
Results version number
v1(current)
This version publication date
23 Jun 2019
First version publication date
23 Jun 2019
Other versions
Summary report(s)
FINAL STUDY REPORT

Trial information

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Trial identification
Sponsor protocol code
RituxiCAN-C4
Additional study identifiers
ISRCTN number
-
US NCT number
NCT00476164
WHO universal trial number (UTN)
-
Sponsors
Sponsor organisation name
King's College London
Sponsor organisation address
The Strand, London, United Kingdom, WC2R 2LS
Public contact
Professor Anthony Dorling, Kings College London, 44 020 7188 8711, anthony.dorling@kcl.ac.uk
Scientific contact
Professor Anthony Dorling, Kings College London, 44 020 7188 8711, anthony.dorling@kcl.ac.uk
Paediatric regulatory details
Is trial part of an agreed paediatric investigation plan (PIP)
No
Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
No
Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
No
Results analysis stage
Analysis stage
Final
Date of interim/final analysis
09 Mar 2017
Is this the analysis of the primary completion data?
Yes
Primary completion date
09 Mar 2017
Global end of trial reached?
Yes
Global end of trial date
09 Mar 2017
Was the trial ended prematurely?
Yes
General information about the trial
Main objective of the trial
To determine whether anti-CD20 therapy can stabilise or improve renal function and/or proteinuria in patients with C4d+, chronic (humoral) rejection in whom standard therapeutic approaches have failed.
Protection of trial subjects
During the initial phase of the run-in period, the following standard clinical therapies will be introduced and/or optimised according to the following guidelines; • Mycophenolate mofetil bd, or enteric coated mycophenolic acid bd, with dose determined according to local unit guidelines. In those centres monitoring MPA levels, dose will be titrated to achieve plasma 12-hour post-dose levels of 1.6-2.75. In these centres, the starting dose will be 500mg bd in patients not already on MMF • Tacrolimus bd titrated to achieve 12-hour post-dose levels of 4-8. Starting dose 0.05mg/kg bd in patients not already on Tacrolimus • Statin therapy to achieve total non-fasting cholesterol to ≤ 4.5 • ACE-I and ARB combination therapy to achieve a target bp of ≤140/≤80
Background therapy
Optimised Tacrolimus, MMF, ACE-I/ARB, statins
Evidence for comparator
n/a
Actual start date of recruitment
12 Apr 2007
Long term follow-up planned
No
Independent data monitoring committee (IDMC) involvement?
No
Population of trial subjects
Number of subjects enrolled per country
Country: Number of subjects enrolled
United Kingdom: 23
Worldwide total number of subjects
23
EEA total number of subjects
23
Number of subjects enrolled per age group
In utero
0
Preterm newborn - gestational age
0
Newborns (0-27 days)
0
Infants and toddlers (28 days-23 months)
0
Children (2-11 years)
0
Adolescents (12-17 years)
0
Adults (18-64 years)
22
From 65 to 84 years
1
85 years and over
0

Subject disposition

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Recruitment
Recruitment details
Participants were recruited from 16 sites across the UK

Pre-assignment
Screening details
All eligible patients will be undergo a run-in period during which time standard therapy will be optimised (0-2 months) followed by 3 months on fully optimised therapy. At the end of the run-in, graft function and degree of proteinuria will be re-assessed and patients who still meet the criteria for entrance into the study.

Period 1
Period 1 title
Overall Trial (overall period)
Is this the baseline period?
Yes
Allocation method
Randomised - controlled
Blinding used
Not blinded
Blinding implementation details
Not applicable

Arms
Are arms mutually exclusive
Yes

Arm title
Control Arm
Arm description
Control group were randomised to stay on standard therapy with the formal 3-month analysis period will begin on the day of randomisation.
Arm type
No intervention

Investigational medicinal product name
No investigational medicinal product assigned in this arm
Arm title
Rituximab Arm
Arm description
Participants in the Rituximab arm received two 1g infusions 14 days apart, administered with paracetamol and chlorphenamine +/- hydrocortisone followed by co-trimoxazole (or alternative) for 6 months.
Arm type
Experimental

Investigational medicinal product name
Rituximab
Investigational medicinal product code
Other name
Pharmaceutical forms
Concentrate for solution for infusion
Routes of administration
Intravenous use
Dosage and administration details
Participants received Rituximab 1g infusions on two occaisions 14 days apart.

Number of subjects in period 1
Control Arm Rituximab Arm
Started
11
12
Completed
11
9
Not completed
0
3
     Consent withdrawn by subject
-
3

Baseline characteristics

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Baseline characteristics reporting groups
Reporting group title
Control Arm
Reporting group description
Control group were randomised to stay on standard therapy with the formal 3-month analysis period will begin on the day of randomisation.

Reporting group title
Rituximab Arm
Reporting group description
Participants in the Rituximab arm received two 1g infusions 14 days apart, administered with paracetamol and chlorphenamine +/- hydrocortisone followed by co-trimoxazole (or alternative) for 6 months.

Reporting group values
Control Arm Rituximab Arm Total
Number of subjects
11 12 23
Age categorical
Units: Subjects
    Adults (18-64 years)
11 12 23
    From 65-84 years
0 0 0
Gender categorical
Units: Subjects
    Female
3 4 7
    Male
8 8 16

End points

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End points reporting groups
Reporting group title
Control Arm
Reporting group description
Control group were randomised to stay on standard therapy with the formal 3-month analysis period will begin on the day of randomisation.

Reporting group title
Rituximab Arm
Reporting group description
Participants in the Rituximab arm received two 1g infusions 14 days apart, administered with paracetamol and chlorphenamine +/- hydrocortisone followed by co-trimoxazole (or alternative) for 6 months.

Primary: Rate of deterioration of renal function

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End point title
Rate of deterioration of renal function [1]
End point description
End point type
Primary
End point timeframe
At least 6 data points over three months
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: Please see final study report for details of analysis.
End point values
Control Arm Rituximab Arm
Number of subjects analysed
11
12
Units: estimated mean differences in slope
11
12
Attachments
FINAL STUDY REPORT
No statistical analyses for this end point

Adverse events

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Adverse events information
Timeframe for reporting adverse events
AEs will be recorded from consent up to the primary end-point.
Assessment type
Systematic
Dictionary used for adverse event reporting
Dictionary name
MedDRA
Dictionary version
17.1
Reporting groups
Reporting group title
Control Arm
Reporting group description
Control group were randomised to stay on standard therapy with the formal 3-month analysis period will begin on the day of randomisation.

Reporting group title
Rituximab Arm
Reporting group description
Participants in the Rituximab arm received two 1g infusions 14 days apart, administered with paracetamol and chlorphenamine +/- hydrocortisone followed by co-trimoxazole (or alternative) for 6 months.

Serious adverse events
Control Arm Rituximab Arm
Total subjects affected by serious adverse events
     subjects affected / exposed
8 / 11 (72.73%)
9 / 12 (75.00%)
     number of deaths (all causes)
0
1
     number of deaths resulting from adverse events
0
1
Blood and lymphatic system disorders
Febrile neutropenia
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Anaemia
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences causally related to treatment / all
0 / 1
0 / 0
     deaths causally related to treatment / all
0 / 0
0 / 0
Respiratory, thoracic and mediastinal disorders
Pneumonia
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Acute pulmonary oedema
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Nervous system disorders
Seizure
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Gastrointestinal disorders
Gastric cancer
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 1
Gastroenteritis
     subjects affected / exposed
2 / 11 (18.18%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 2
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Pyelonephritis
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Post peritoneal catheter insertion complication
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences causally related to treatment / all
0 / 1
0 / 0
     deaths causally related to treatment / all
0 / 0
0 / 0
Incarcerated incisional hernia
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences causally related to treatment / all
0 / 1
0 / 0
     deaths causally related to treatment / all
0 / 0
0 / 0
Renal and urinary disorders
Complication post biopsy
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences causally related to treatment / all
0 / 1
0 / 0
     deaths causally related to treatment / all
0 / 0
0 / 0
Skin and subcutaneous tissue disorders
Abscess
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 0
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Metabolism and nutrition disorders
Hyperkalaemia
     subjects affected / exposed
1 / 11 (9.09%)
1 / 12 (8.33%)
     occurrences causally related to treatment / all
0 / 1
0 / 1
     deaths causally related to treatment / all
0 / 0
0 / 0
Hyponatraemia
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences causally related to treatment / all
0 / 1
0 / 0
     deaths causally related to treatment / all
0 / 0
0 / 0
Frequency threshold for reporting non-serious adverse events: 0%
Non-serious adverse events
Control Arm Rituximab Arm
Total subjects affected by non serious adverse events
     subjects affected / exposed
8 / 11 (72.73%)
9 / 12 (75.00%)
Cardiac disorders
Cardiac disorder
     subjects affected / exposed
3 / 11 (27.27%)
1 / 12 (8.33%)
     occurrences all number
3
1
Blood and lymphatic system disorders
Anaemia
     subjects affected / exposed
4 / 11 (36.36%)
3 / 12 (25.00%)
     occurrences all number
4
3
Other
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences all number
1
0
Respiratory, thoracic and mediastinal disorders
Infection
     subjects affected / exposed
3 / 11 (27.27%)
6 / 12 (50.00%)
     occurrences all number
3
6
Other
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences all number
1
0
Nervous system disorders
Other
     subjects affected / exposed
2 / 11 (18.18%)
3 / 12 (25.00%)
     occurrences all number
2
3
Gastrointestinal disorders
Drug related
     subjects affected / exposed
1 / 11 (9.09%)
0 / 12 (0.00%)
     occurrences all number
1
0
Other
     subjects affected / exposed
3 / 11 (27.27%)
5 / 12 (41.67%)
     occurrences all number
3
5
Renal and urinary disorders
Infection
     subjects affected / exposed
4 / 11 (36.36%)
1 / 12 (8.33%)
     occurrences all number
4
1
Skin and subcutaneous tissue disorders
Infection
     subjects affected / exposed
2 / 11 (18.18%)
3 / 12 (25.00%)
     occurrences all number
2
3
Neoplasm
     subjects affected / exposed
3 / 11 (27.27%)
1 / 12 (8.33%)
     occurrences all number
3
1
Other
     subjects affected / exposed
1 / 11 (9.09%)
3 / 12 (25.00%)
     occurrences all number
1
3
Musculoskeletal and connective tissue disorders
Other
     subjects affected / exposed
1 / 11 (9.09%)
5 / 12 (41.67%)
     occurrences all number
1
5
Metabolism and nutrition disorders
Electrolyte imbalance
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences all number
0
1
Diabetes mellitus
     subjects affected / exposed
0 / 11 (0.00%)
1 / 12 (8.33%)
     occurrences all number
0
1
Other
     subjects affected / exposed
0 / 11 (0.00%)
2 / 12 (16.67%)
     occurrences all number
0
2
Infections and infestations
Systemic infection
     subjects affected / exposed
3 / 11 (27.27%)
1 / 12 (8.33%)
     occurrences all number
3
1

More information

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Substantial protocol amendments (globally)

Were there any global substantial amendments to the protocol? Yes
Date
Amendment
19 Oct 2009
Change of Sponsor from Imperial College London to King's College London
14 Feb 2010
a) Addition of “administration of lymphocyte depleting antibody within 3 months of enrolment” to the exclusion criteria. b) Requirement for units to give 6 months of prophylactic co-trimoxazole to all patients receiving rituximab. The dose will be that used by each unit for prophtlaxis.
20 Dec 2010
Allow use enteric coated mycophenolic acid instead of MMF. Allow use imaging techniques other than MRA. Amended IMP labels
07 Feb 2012
Two changes have been made to the exclusion criteria, the first to reflect a difficulty the trial team have had in obtaining timely imaging to exclude renal artery stenosis (which after 40 recruits has not excluded anybody), and the second to reflect a minor change in the SmPC for rituximab.

Interruptions (globally)

Were there any global interruptions to the trial? No

Limitations and caveats

Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
None reported
3
Abonnere