Prove cliniche Nct

Clinical Trial Results:
A phase II open-label study to determine the safety and anti-leukemic effects of STI571 in patients with Philadelphia chromosome-positive chronic myeloid leukemia in myeloid blast crisis extended for in total of 11 years (Extension 1: 2002-2004 and Extension 2: 2004- 2013)

Summary
EudraCT number
2005-001380-61
Trial protocol
IT  
Global end of trial date
22 Apr 2013

Results information
Results version number
v1(current)
This version publication date
28 Jul 2018
First version publication date
28 Jul 2018
Other versions

Trial information

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Trial identification
Sponsor protocol code
CSTI571A0102E2
Additional study identifiers
ISRCTN number
-
US NCT number
NCT00171158
WHO universal trial number (UTN)
-
Sponsors
Sponsor organisation name
Novartis Pharma AG
Sponsor organisation address
CH-4002, Basel, Switzerland,
Public contact
Clinical Disclosure Office, Novartis Pharma AG, +41 613241111,
Scientific contact
Clinical Disclosure Office, Novartis Pharma AG, +41 613241111,
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
22 Apr 2013
Is this the analysis of the primary completion data?
No
Global end of trial reached?
Yes
Global end of trial date
22 Apr 2013
Was the trial ended prematurely?
No
General information about the trial
Main objective of the trial
To enable patients to have access to study drug, continue study treatment and to decrease data collection to include overall survival and serious adverse events.
Protection of trial subjects
The study was in compliance with the ethical principles derived from the Declaration of Helsinki and the International Conference on Harmonization (ICH) Good Clinical Practice (GCP) Guidelines. All the local regulatory requirements pertinent to safety of trial subjects were also followed during the conduct of the trial.
Background therapy
-
Evidence for comparator
-
Actual start date of recruitment
26 Mar 2004
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
France: 17
Country: Number of subjects enrolled
Germany: 62
Country: Number of subjects enrolled
Switzerland: 5
Country: Number of subjects enrolled
United Kingdom: 35
Country: Number of subjects enrolled
United States: 126
Country: Number of subjects enrolled
Italy: 15
Worldwide total number of subjects
260
EEA total number of subjects
129
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)
199
From 65 to 84 years
61
85 years and over
0

Subject disposition

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Recruitment
Recruitment details
-

Pre-assignment
Screening details
Patients recruited were adults with Philadelphia chromosome-positive (Ph+) CML transformed into myeloid BC. Patients that completed extension study #1 could enter into the extension study #2.

Period 1
Period 1 title
Overall Trial
Is this the baseline period?
Yes
Allocation method
Not applicable
Blinding used
Not blinded

Arms
Arm title
All subjects
Arm description
STI571 was originally provided in capsule form in 100 mg strength. STI571 will be supplied as tablets instead of capsules. Patients will continue to use capsules until the supply of capsules is finished and are supplied with tablets. The capsules and tablets are bioequivalent. The initial dose was either 400 mg once daily or 600 mg once daily. Dosage increase from 400 mg once daily to 600 mg once daily and from 600 mg once daily to 800 mg once daily was permitted in all patients for improved therapeutic effect.
Arm type
Experimental

Investigational medicinal product name
STI571
Investigational medicinal product code
Other name
imatinib, Glivec®, Gleevec®
Pharmaceutical forms
Tablet
Routes of administration
Oral use
Dosage and administration details
STI571 was supplied as 25 mg, 50 mg and 100 mg tablets, taken orally, once a day with 250 ml of water after breakfast for 400 mg/day and 600 mg/day doses, or twice a day after breakfast and the evening meal for 800 mg/day (2 x 400 mg/day) dose.

Number of subjects in period 1
All subjects
Started
260
Still on treatment
21
Completed
21
Not completed
239
     Death
27
     Unsatisfactory therapeutic effect
163
     Protocol violation
4
     Administrative problems
1
     Adverse event, non-fatal
21
     Consent withdrawn by subject
6
     No longer required drug (BMT)
14
     Abnormal laboratory values
2
     Lost to follow-up
1
Period 2
Period 2 title
Overall Trial - E2 extension
Is this the baseline period?
No
Allocation method
Not applicable
Blinding used
Not blinded

Arms
Arm title
All subjects - Extension phase
Arm description
STI571 was provided in capsule form in 100 mg strength. STI571 will be supplied as tablets instead of capsules. Patients will continue to use capsules until the supply of capsules is finished and are supplied with tablets. The capsules and tablets are bioequivalent. The initial dose was either 400 mg once daily or 600 mg once daily. Dosage increase from 400 mg once daily to 600 mg once daily and from 600 mg once daily to 800 mg once daily was permitted in all patients for improved therapeutic effect.
Arm type
Experimental

Investigational medicinal product name
STI571
Investigational medicinal product code
imatinib mesylate
Other name
imatinib, Glivec®, Gleevec®
Pharmaceutical forms
Tablet
Routes of administration
Oral use
Dosage and administration details
STI571 was supplied as 25 mg, 50 mg and 100 mg tablets, taken orally, once a day with 250 ml of water after breakfast for 400 mg/day and 600 mg/day doses, or twice a day after breakfast and the evening meal for 800 mg/day (2 x 400 mg/day) dose.

Number of subjects in period 2 [1]
All subjects - Extension phase
Started
8
Completed
1
Not completed
7
     Unknown reason
7
Notes
[1] - The number of subjects starting the period is not consistent with the number completing the preceding period. It is expected the number of subjects starting the subsequent period will be the same as the number completing the preceding period.
Justification: In Extension 1 (E1) of the study, 13 subjects discontinued. Reasons are unknown.

Baseline characteristics

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Baseline characteristics reporting groups
Reporting group title
Overall Trial
Reporting group description
-

Reporting group values
Overall Trial Total
Number of subjects
260 260
Age categorical
Units: Subjects
    In utero
0 0
    Preterm newborn infants (gestational age < 37 wks)
0 0
    Newborns (0-27 days)
0 0
    Infants and toddlers (28 days-23 months)
0 0
    Children (2-11 years)
0 0
    Adolescents (12-17 years)
0 0
    Adults (18-64 years)
199 199
    From 65-84 years
61 61
    85 years and over
0 0
Age continuous
Units: years
    median (full range (min-max))
56 (19 to 81) -
Gender categorical
Units: Subjects
    Female
124 124
    Male
136 136

End points

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End points reporting groups
Reporting group title
All subjects
Reporting group description
STI571 was originally provided in capsule form in 100 mg strength. STI571 will be supplied as tablets instead of capsules. Patients will continue to use capsules until the supply of capsules is finished and are supplied with tablets. The capsules and tablets are bioequivalent. The initial dose was either 400 mg once daily or 600 mg once daily. Dosage increase from 400 mg once daily to 600 mg once daily and from 600 mg once daily to 800 mg once daily was permitted in all patients for improved therapeutic effect.
Reporting group title
All subjects - Extension phase
Reporting group description
STI571 was provided in capsule form in 100 mg strength. STI571 will be supplied as tablets instead of capsules. Patients will continue to use capsules until the supply of capsules is finished and are supplied with tablets. The capsules and tablets are bioequivalent. The initial dose was either 400 mg once daily or 600 mg once daily. Dosage increase from 400 mg once daily to 600 mg once daily and from 600 mg once daily to 800 mg once daily was permitted in all patients for improved therapeutic effect.

Primary: Summary overall survival (ITT)

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End point title
Summary overall survival (ITT) [1]
End point description
Overall survival was defined as the time from first dose of STI571 to death of the patient.
End point type
Primary
End point timeframe
From first dose until death of the patient, up to 11 years.
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: No statistical analyses have been reported for this primary end point
End point values
All subjects
Number of subjects analysed
260 [2]
Units: Number of events (%)
number (not applicable)
    All patients
89.2
Notes
[2] - Intent-to-treat (ITT) population.
No statistical analyses for this end point

Primary: Summary of overall survival (by month)

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End point title
Summary of overall survival (by month) [3]
End point description
Kaplan-Meier estimates per month.
End point type
Primary
End point timeframe
From first dose until death of the patient, up to 11 years.
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: No statistical analyses have been reported for this primary end point
End point values
All subjects
Number of subjects analysed
260 [4]
Units: percentage f participants
number (confidence interval 95%)
    12 months
32.7 (27.0 to 38.5)
    24 months
18.7 (14.2 to 23.8)
    36 months
15.4 (11.2 to 20.2)
    48 months
14.5 (10.4 to 19.2)
    60 months
9.1 (5.7 to 13.4)
    72 months
8.4 (5.2 to 12.7)
    84 months
7.5 (4.3 to 11.8)
    96 months
7.5 (4.3 to 11.8)
    108 months
7.5 (4.3 to 11.8)
    120 months
6.6 (3.5 to 11.0)
    132 months
5.5 (2.6 to 10.0)
Notes
[4] - Intent-to-treat (ITT) population
No statistical analyses for this end point

Adverse events

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Adverse events information [1]
Timeframe for reporting adverse events
Adverse events are collected from First Patient First Visit (FPFV) until Last Patient Last Visit (LPLV). All adverse events reported in this record are from date of First Patient First Treatment until Last Patient Last Visit.
Adverse event reporting additional description
After 31-Jul-2002 no safety data was collected in the clinical database and Serious adverse events (SAEs) were reported in the safety database. No drug-related SAEs leading to discontinuation or drug-related deaths were reported after 31-Jul-2002 in the safety database.
Assessment type
Systematic
Dictionary used for adverse event reporting
Dictionary name
MedDRA
Dictionary version
16.0
Reporting groups
Reporting group title
All subjects
Reporting group description
STI571 was originally provided in capsule form in 100 mg strength. STI571 will be supplied as tablets instead of capsules. Patients will continue to use capsules until the supply of capsules is finished and are supplied with tablets. The capsules and tablets are bioequivalent. The initial dose was either 400 mg once daily or 600 mg once daily. Dosage increase from 400 mg once daily to 600 mg once daily and from 600 mg once daily to 800 mg once daily was permitted in all patients for improved therapeutic effect.

Serious adverse events
All subjects
Total subjects affected by serious adverse events
     subjects affected / exposed
0 / 8 (0.00%)
     number of deaths (all causes)
0
     number of deaths resulting from adverse events
0
Frequency threshold for reporting non-serious adverse events: 5%
Non-serious adverse events
All subjects
Total subjects affected by non serious adverse events
     subjects affected / exposed
0 / 8 (0.00%)
Notes
[1] - There are no non-serious adverse events recorded for these results. It is expected that there will be at least one non-serious adverse event reported.
Justification: After 31-Jul-2002 no safety data was collected in the clinical database and Serious adverse events (SAEs) were reported in the safety database.

More information

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Substantial protocol amendments (globally)

Were there any global substantial amendments to the protocol? Yes
Date
Amendment
01 Mar 2004
To allow patients to receive study drug for as long as the patient should require it. Also, it changed the frequency of bone marrow cytogenetics for those patients maintaining a complete cytogenetic response to annually from twice yearly until the patient reached month 48 of the extension or 31-July-2006, whichever date came first.
01 Mar 2008
To accommodate patient site visits on a yearly (±3 months) basis rather than every six months. In addition, a new section was added to include new protocol deviation language which stated that under no circumstances were protocol deviations allowed.

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
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