Clinical Trial Results:
A Single Arm, Open-Label, Multi-Centre, Phase I/II Study Evaluating the Safety and Clinical Activity of AUTO2, a CAR T Cell Treatment Targeting BCMA and TACI, in Patients with Relapsed or Refractory Multiple Myeloma.
Summary
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EudraCT number |
2016-003893-42 |
Trial protocol |
GB NL |
Global end of trial date |
05 Sep 2019
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Results information
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Results version number |
v1(current) |
This version publication date |
20 Sep 2020
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First version publication date |
20 Sep 2020
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Other versions |
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 |
AUTO2-MM1
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT03287804 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Autolus Limited
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Sponsor organisation address |
Forest House, 58 Wood Lane, White City, London, United Kingdom, W12 7RZ
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Public contact |
Clinical Project Manager, Autolus Limited, +44 1483 920748, clinicaltrials@autolus.com
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Scientific contact |
Clinical Project Manager, Autolus Limited, +44 1483 920748, clinicaltrials@autolus.com
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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 |
01 May 2020
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
05 Sep 2019
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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 |
Phase 1: Assess the safety and tolerability of AUTO2, identify the recommended Phase II dose and maximum tolerated dose (MTD), where applicable.
Phase 2: To evaluate the anti-tumour effect of AUTO2.
Long term follow-up is conducted under the separate long term follow-up study protocol AUTO-LT1.
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Protection of trial subjects |
The Investigator was responsible for conducting the study in full accordance with the clinical study protocol, the latest revision of the Declaration of Helsinki, the Good Clinical Practice: Consolidated Guideline, and all applicable national and local laws and regulations for clinical research. Information regarding any investigational sites participating in this study that cannot comply with these standards was documented and appropriate actions taken. For studies conducted in the EU/European Economic Area countries, the Investigator has ensured compliance with the EU Clinical Trial Directive [2001/20/EC]. For studies conducted in the United States or under a United States investigational new drug (IND), the Investigator has additionally ensure adherence to the basic principles of “Good Clinical Practice” as outlined in the current version of 21 Code of Federal Regulations, subchapter D, part 312, “Responsibilities of Sponsor and Investigators”, part 50, “Protection of Human Subjects”, and part 56, “Institutional Review Boards”.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
05 May 2017
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Long term follow-up planned |
Yes
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Long term follow-up rationale |
Safety, Efficacy | ||
Long term follow-up duration |
15 Years | ||
Independent data monitoring committee (IDMC) involvement? |
Yes
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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 |
Netherlands: 1
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Country: Number of subjects enrolled |
United Kingdom: 11
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Worldwide total number of subjects |
12
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EEA total number of subjects |
12
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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) |
9
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From 65 to 84 years |
3
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85 years and over |
0
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Recruitment
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Recruitment details |
Subjects were recruited at two study centres in the United Kingdom and one study centre in the Netherlands. | ||||||||||||||||
Pre-assignment
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Screening details |
Screening procedures were performed up to 12 weeks before study drug was administered. | ||||||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | ||||||||||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||||||||||
Arms
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Arm title
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AUTO2 | ||||||||||||||||
Arm description |
Relapsed or refractory myeloma subjects. | ||||||||||||||||
Arm type |
Experimental | ||||||||||||||||
Investigational medicinal product name |
AUTO2
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for infusion
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Routes of administration |
Intravenous use
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Dosage and administration details |
Subjects received a single dose as an intravenous infusion on Day 0.
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Baseline characteristics reporting groups
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Reporting group title |
AUTO2
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Reporting group description |
Relapsed or refractory myeloma subjects. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
AUTO2
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Reporting group description |
Relapsed or refractory myeloma subjects. |
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End point title |
Phase 1: Number of Subjects with Grade 3 to 5 Toxicity during the Dose Limiting Toxicity (DLT) Period [1] | ||||||
End point description |
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End point type |
Primary
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End point timeframe |
Up to 28 days post-infusion
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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: Only descriptive summary statistics were planned for this endpoint. |
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No statistical analyses for this end point |
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End point title |
Phase 1: Number of Subjects with a Dose Limiting Toxicity (DLT) [2] | ||||||
End point description |
Dose limiting toxicity was defined as:
Any new non-hematological AE of Grade 3 or higher toxicity using the NCI CTCAE (Version 4.03), which is probably or
definitely related to AUTO2 therapy, which occurs within the DLT evaluation period, and which fails to resolve to Grade
2 or better within 14 days, despite appropriate supportive measures; A Grade 4 CRS; Any other reason for activation of
the safety switch after receiving AUTO2; Any other fatal event (Grade 5) or life-threatening event (Grade 4) that cannot
be managed with conventional supportive measures or which in the opinion of the SEC necessitates dose reduction
or other modification to trial treatment to avoid a similar hazard in future patients. Effort should be made to perform an
autopsy in case of fatal event where the aetiology is unclear; Any event that in the opinion of treating investigators and/
or Medical Monitor puts the patient at undue risk may also be considered a DLT.
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End point type |
Primary
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End point timeframe |
Up to 28 days post-infusion
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Notes [2] - 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: Only descriptive summary statistics were planned for this endpoint. |
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No statistical analyses for this end point |
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End point title |
Phase 2: Best Overall Response [3] | ||||||||||||||
End point description |
The analysis population consisted of all subjects who received at least 1 dose (complete or partial) of AUTO2 therapy in Phase I of the study. No patients were enrolled in Phase II as the study was early terminated in Phase I.
Best overall response was defined as stringent complete response + complete response + very good partial response +
partial response following treatment with AUTO2. Response Criteria Per IMWG Consensus Recommendations
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End point type |
Primary
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End point timeframe |
Up to 2 years
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Notes [3] - 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: Statistical analysis was not performed on this endpoint as the study was early terminated and Phase 2 was never started. |
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No statistical analyses for this end point |
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End point title |
Proportion of Subjects for Whom an AUTO2 Product Can be Generated | ||||||
End point description |
Feasibility of product generation will be examined by assessing the number of AUTO2 successfully manufactured as a fraction of the number of subjects undergoing leukapheresis.
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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No statistical analyses for this end point |
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End point title |
Clinical Benefit Rate | ||||||
End point description |
Number of subjects exhibiting stringent complete response, complete response, very good partial response, partial response or minor response following treatment with AUTO2.
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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Notes [4] - 2 subjects were retreated; their best overall response is presented for this endpoint. |
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No statistical analyses for this end point |
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End point title |
Duration of Response | ||||||||
End point description |
Calculated from the date of first observation of sCR, CR, VGPR or PR to the date of disease progression, relapse or death, for subjects who were considered responders (achieved at least PR). Subjects who had not progressed, relapsed or died will be censored at the last adequate disease assessment.
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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Notes [5] - Analysis was not performed due to the study being terminated early and Phase 2 not being started. |
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No statistical analyses for this end point |
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End point title |
Time to Disease Progression | ||||||||
End point description |
Calculated from the date of AUTO2 treatment to the date of progression. Subjects who had not progressed, relapsed or died without progression/relapse will be censored at the last adequate disease assessment.
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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Notes [6] - Analysis was not performed due to the study being terminated early and Phase 2 not being started. |
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No statistical analyses for this end point |
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End point title |
Progression Free Survival | ||||||||
End point description |
Calculated from the date of AUTO2 treatment to the date of progression or death. Subjects who have not progressed or relapsed was censored at the last adequate disease assessment
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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Notes [7] - Analysis was not performed due to the study being terminated early and Phase 2 not being started. |
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No statistical analyses for this end point |
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End point title |
Overall Survival | ||||||
End point description |
Descriptive analysis based on number of subjects alive at database lock (1-May-2020).
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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No statistical analyses for this end point |
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End point title |
Number of Subjects with Expansion Followed by Persistence of RQR8/APRIL CAR Positive T Cells in the Peripheral Blood | ||||||
End point description |
Expansion and persistence of RQR8/APRIL CAR positive T cells as determined by quantitative polymerase chain reaction and/or flow cytometry.
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End point type |
Secondary
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End point timeframe |
Up to 2 years
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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 |
Day 0 until Day 60 post last AUTO2 infusion.
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Adverse event reporting additional description |
Adverse events are reported for the 11 subjects who received study treatment (safety analysis set).
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Assessment type |
Non-systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
22.0
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Reporting groups
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Reporting group title |
AUTO2
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Reporting group description |
Relapsed or refractory myeloma subjects. Results for adverse events are shown for the safety analysis set. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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10 Jan 2017 |
Protocol Version 2 - Summary of changes:
- Administrative changes
- Clarification of study design and eligibility criteria
- Clarification for subjects who receive rituximab
- Reduced biomarker sampling frequency
- Safety Evaluation Committee monitoring introduced
- Independent Data Monitoring Committee introduced
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07 Nov 2017 |
Protocol Version 3 - Summary of changes:
- Administrative changes
- Updated study design
- Updated patient numbers
- Increased study duration
- Modification of Schedule of Assessments
- Update on Safety Management Guidelines
- Clarifications in Eligibility section
- Uniform descriptions added for product descriptions and pre-clinical information
- Modifications to AE reporting period and conmeds
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19 Dec 2017 |
Protocol Version 4 - Summary of changes:
- Typographical and administrative changes
- Updates to study design
- Updates to overall patient number
- Duration of study participation updated
- DLT criteria updated
- Update on general supportive care guidelines
- Clarifications added for AE reporting
- Updates to eligibility section
- IMWG update 2016 for disease response evaluation
- Statistical analysis modification
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30 Jan 2018 |
Protocol Version 5 - Summary of changes:
- Typographical changes
- Updated summary of clinical studies
- Dose-escalation details added
- Schedule of assessments and sampling schedule updated
- Updates to Inclusion/exclusion criteria
- Re-treatment criteria clarification added
- Discontinuation and re-enrolment into the study clarification added
- Additional study visit and procedures added
- Lifestyle restrictions added
- Monitoring access clarified
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15 May 2018 |
Protocol Version 6 - Summary of changes:
- Typographical changes
- DLT criteria modified
- Re-treatment criteria modified
- Inclusion/exclusion criteria amended
- Guidelines for prevention, monitoring and management of adverse events amended
- Pharmacologic Management of CRS aligned with packaging
- Additional language added to Allowed Concomitant Medications/Therapies
- Additional samples will be taken for Rituximab Rescue Therapy
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27 Jun 2018 |
Protocol Version 7 - Summary of changes:
- Typographical changes
- Update on clinical experience so far
- Decrease of Cohort 4
- Increase in DMSO quantity
- Updated dosing information |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
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. | |||
None reported |