Clinical Trial Results:
An Open Label Study to Assess the Safety and Efficacy of COR-003 (2S,4R-Ketoconazole) in the Treatment of Endogenous Cushing's Syndrome (CS)
Summary
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EudraCT number |
2013-002133-37 |
Trial protocol |
GB ES BE NL SE DK DE IT BG CZ HU |
Global end of trial date |
20 Nov 2018
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Results information
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Results version number |
v1(current) |
This version publication date |
13 May 2021
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First version publication date |
13 May 2021
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Other versions |
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Summary report(s) |
Efficacy and Safety of levoketoconazole Efficacy and Safety of Levoketoconazole Suppl data Levoketoconazole improves clinical signs and symptoms Levoketoconazole in the Treatment of CS with Diabetes Levoketoconazole in the Treatment of Diabetes suppl table |
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 |
COR-2012-01
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT01838551 | ||
WHO universal trial number (UTN) |
- | ||
Other trial identifiers |
COR202101: SONICS | ||
Sponsors
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Sponsor organisation name |
Cortendo AB
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Sponsor organisation address |
900 Northbrook Drive, Suite 200, Trevose, United States, 19053
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Public contact |
Clinical Trial Information, Cortendo AB, +1 609878179, info@cortendo.com
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Scientific contact |
Clinical Trial Information, Cortendo AB, +1 609878179, info@cortendo.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 |
21 Jan 2019
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
30 Apr 2018
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Global end of trial reached? |
Yes
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Global end of trial date |
20 Nov 2018
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
To evaluate the clinical responder rate, defined as the proportion of subjects with normal UFC after 6 months of treatment with COR-003 in the Maintenance Phase without dose increase, and to evaluate the range of effective doses in subjects with various levels of hypercortisolism.
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Protection of trial subjects |
Withdrawal criteria defined for events relating to QT interval prolongation and laboratory abnormalities related to liver tests.
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Background therapy |
None defined | ||
Evidence for comparator |
No comparators used. | ||
Actual start date of recruitment |
30 Jul 2014
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Long term follow-up planned |
Yes
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Long term follow-up rationale |
Safety, Regulatory reason, Scientific research | ||
Long term follow-up duration |
3 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: 5
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Country: Number of subjects enrolled |
Poland: 8
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Country: Number of subjects enrolled |
Spain: 3
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Country: Number of subjects enrolled |
Belgium: 3
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Country: Number of subjects enrolled |
Bulgaria: 6
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Country: Number of subjects enrolled |
Denmark: 4
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Country: Number of subjects enrolled |
France: 2
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Country: Number of subjects enrolled |
Germany: 1
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Country: Number of subjects enrolled |
Italy: 20
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Country: Number of subjects enrolled |
United States: 28
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Country: Number of subjects enrolled |
Canada: 1
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Country: Number of subjects enrolled |
Israel: 9
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Country: Number of subjects enrolled |
Serbia: 1
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Country: Number of subjects enrolled |
Turkey: 3
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Worldwide total number of subjects |
94
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EEA total number of subjects |
52
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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) |
89
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From 65 to 84 years |
5
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85 years and over |
0
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Recruitment
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Recruitment details |
- | ||||||||||||||||||||
Pre-assignment
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Screening details |
A total of 201 patients were screened between 30 July 2014 and 30 June 2017. Of these, 107 patients were screening failures, predominantly because they did not meet eligibility criteria. | ||||||||||||||||||||
Period 1
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Period 1 title |
Titration Phase
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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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Levoketoconazole Titration Phase | ||||||||||||||||||||
Arm description |
The initial dose was levoketoconazole 150 mg BID (300 mg/day), taken as 1 tablet in the morning and 1 tablet in the evening. During the first 2 to 21 weeks, dose was titrated in protocol-defined increments up to each subject's therapeutic dose, based on the subject's urinary free cortisol (UFC) levels and safety/tolerability. The interval between upward dose adjustments was to be approximately 18 days. The lowest allowed dose was 150 mg/day for subjects who could not tolerate 150 mg BID; the highest allowed dose was 600 mg BID (1200 mg/day). The therapeutic dose had been reached when mean UFC levels (determined from a total of 4 24-h urine collections) were ≤ULN of the assay, or the maximum allowed dose (600 mg BID) had been reached, or a clinically meaningful partial response and the maximal tolerated dose had been reached. | ||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||
Investigational medicinal product name |
Levoketoconazole
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Investigational medicinal product code |
COR-003
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Other name |
2S,4R-ketoconazole
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
The initial dose was levoketoconazole 150 mg BID (300 mg/day), taken as 1 tablet in the morning and 1 tablet in the evening. During the first 2 to 21 weeks, dose was titrated in protocol-defined increments up to each subject's therapeutic dose, based on the subject's UFC levels and safety/tolerability. The interval between upward dose adjustments was to be approximately 18 days. The lowest allowed dose was 150 mg/day for subjects who could not tolerate 150 mg BID; the highest allowed dose was 600 mg BID (1200 mg/day).
The therapeutic dose had been reached when mean UFC levels (determined from a total of 4 24-h urine collections) were ≤ULN of the assay, or the maximum allowed dose (600 mg BID) had been reached, or a clinically meaningful partial response and the maximal tolerated dose had been reached.
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Period 2
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Period 2 title |
Maintenance Phase
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Is this the baseline period? |
No | ||||||||||||||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||||||||||||||
Arms
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Arm title
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Levoketoconazole Maintenance Phase | ||||||||||||||||||||
Arm description |
Dosing was to be continued for 6 months at the therapeutic dose established by dose titration in the Titration Phase. During the Maintenance Phase, levoketoconazole dose was not to be changed unless medically necessary. | ||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||
Investigational medicinal product name |
Levoketoconazole
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Investigational medicinal product code |
COR-003
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Other name |
2S,4R-ketoconazole
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Dosing was to be continued for 6 months at the therapeutic dose established by dose titration in the Titration Phase. The required number of tablets was to be taken in the morning and evening following a protocol defined dosing scheme.
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Period 3
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Period 3 title |
Extended Evaluation Phase
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Is this the baseline period? |
No | ||||||||||||||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||||||||||||||
Arms
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Arm title
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Levoketoconazole Extended Evaluation Phase | ||||||||||||||||||||
Arm description |
During the Extended Evaluation Phase, levoketoconazole dosing was to continue as in the Maintenance Phase. Dosing was to be continued for 6 months. The levoketoconazole dose was not to be changed unless medically necessary. | ||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||
Investigational medicinal product name |
Levoketoconazole
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Investigational medicinal product code |
COR-003
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Other name |
2S,4R-ketoconazole
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Dosing was to be continued as in the Maintenance Phase. The required number of tablets was to be taken in the morning and evening following a protocol defined dosing scheme.
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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: All patients but one continued into the Extended Evaluation Phase while one patient chose not to continue. |
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Baseline characteristics reporting groups
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Reporting group title |
Titration Phase
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Reporting group description |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Subject analysis sets
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Subject analysis set title |
ITT
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Subject analysis set type |
Intention-to-treat | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
All subjects who received at least 1 dose of levoketoconazole. This population is used for the evaluation of efficacy and all safety analyses.
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Subject analysis set title |
ITT2
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Subject analysis set type |
Intention-to-treat | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
Identical to ITT
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End points reporting groups
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Reporting group title |
Levoketoconazole Titration Phase
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Reporting group description |
The initial dose was levoketoconazole 150 mg BID (300 mg/day), taken as 1 tablet in the morning and 1 tablet in the evening. During the first 2 to 21 weeks, dose was titrated in protocol-defined increments up to each subject's therapeutic dose, based on the subject's urinary free cortisol (UFC) levels and safety/tolerability. The interval between upward dose adjustments was to be approximately 18 days. The lowest allowed dose was 150 mg/day for subjects who could not tolerate 150 mg BID; the highest allowed dose was 600 mg BID (1200 mg/day). The therapeutic dose had been reached when mean UFC levels (determined from a total of 4 24-h urine collections) were ≤ULN of the assay, or the maximum allowed dose (600 mg BID) had been reached, or a clinically meaningful partial response and the maximal tolerated dose had been reached. | ||
Reporting group title |
Levoketoconazole Maintenance Phase
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Reporting group description |
Dosing was to be continued for 6 months at the therapeutic dose established by dose titration in the Titration Phase. During the Maintenance Phase, levoketoconazole dose was not to be changed unless medically necessary. | ||
Reporting group title |
Levoketoconazole Extended Evaluation Phase
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Reporting group description |
During the Extended Evaluation Phase, levoketoconazole dosing was to continue as in the Maintenance Phase. Dosing was to be continued for 6 months. The levoketoconazole dose was not to be changed unless medically necessary. | ||
Subject analysis set title |
ITT
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Subject analysis set type |
Intention-to-treat | ||
Subject analysis set description |
All subjects who received at least 1 dose of levoketoconazole. This population is used for the evaluation of efficacy and all safety analyses.
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Subject analysis set title |
ITT2
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Subject analysis set type |
Intention-to-treat | ||
Subject analysis set description |
Identical to ITT
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End point title |
mUFC Complete Response Rate | ||||||||||||
End point description |
Clinical response to levoketoconazole was defined as mean 24-h urinary free cortisol concentration (mUFC) less than or equal to the ULN (upper limit of normal) of the reference range following 6 months of therapy in the Maintenance Phase without a dose increase during that phase. The proportion of responders at the end of maintenance phase visit for all dose groups combined was estimated using a generalised linear model with repeated measurements and with region (US vs non-US), concurrent CS median conditions (diabetes [Yes/NO], hypertension [Yes/No]), age (rounded median split based on the ITT population), sex, disease duration (years), prior CS medication (Yes/No), prior radiation therapy (Yes/No) as baseline covariates and visit as an independent factor. The LS mean estimate of the UFC response after 6 months of treatment in maintenance phase with 95% confidence interval was used to infer efficacy.
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End point type |
Primary
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End point timeframe |
6-month Maintenance Phase
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Notes [1] - Identical to ITT |
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Statistical analysis title |
Primary Efficacy Endpoint Analysis | ||||||||||||
Statistical analysis description |
The GLM described above was used as the primary analysis method. Under the null hypothesis of at most 20% responders, 90 subjects in the ITT population provided 90% power with 2-sided type 1 error of 0.05 assuming an observed response of 35%. The Wald 95% confidence interval around the UFC response estimate provided by the GLM served as the primary basis of statistical inference.
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Comparison groups |
ITT v ITT2
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Number of subjects included in analysis |
188
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Analysis specification |
Pre-specified
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Analysis type |
superiority [2] | ||||||||||||
P-value |
= 0.0154 [3] | ||||||||||||
Method |
Generalized Linear Model | ||||||||||||
Parameter type |
Proportion | ||||||||||||
Point estimate |
0.3
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
0.21 | ||||||||||||
upper limit |
0.4 | ||||||||||||
Notes [2] - A superiority analysis comparing the observed ITT response to thg null hypothesized rate. Subjects were imputed as non-responders for the primary endpoint if they: withdrew prior to Month 6 of maintenance phase; had a dose increase relative to the therapeutic dose during maintenance phase; Month 6 mUFC data were missing or inadequate; had received radiation therapy and exhibited no rebound increase in mUFC following withdrawal of levoketoconazole immediately after the end of maintenance phase [3] - The one-sided p-value calculated was based on a null hypothesis that true response is less than or equal 0.20. |
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Adverse events information
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Timeframe for reporting adverse events |
Reported TEAEs are summarized from the first day of study drug administration through the last day plus 30 days. For the ITT pop, median was ~14 (mean ~12, max ~23) months.
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Adverse event reporting additional description |
Only treatment-emergent AEs are reported
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
21.1
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Reporting groups
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Reporting group title |
Levoketoconazole, all phases combined
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Reporting group description |
All patients enroled and treated i.e. who receive at least one dose of study drug | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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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28 Aug 2014 |
- Increase in window for time between dose adjustments from ±2 to ±7 days
- Increase in duration of screening phase from 8 to about 12 weeks
- Allowance of screening assessments to occur following ICF signature and discontinuation of prohibited medications |
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16 Apr 2015 |
- Removal of ambulatory blood pressure assessments; physician and subject VAS questionnaires; option for TID dosing
- Addition of the CushingQOL and BDI-II
- Modification of LNSC to be measured over 2 instead of 3 nights
- Decrease in number of PK samples to be collected |
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25 Oct 2016 |
- Removal of: FU visit for patients participating in Expanded Access Program; extra 24-h urine collection at start of Maintenance Phase; magnetic resonance imaging at FU visit for patients completing Month 12 of the Extended Evaluation phase
- Addition of: guidance for rescreening; PK sampling with persistent and confirmed QTc prolongation; visit windows (±7 and ±14 days) during Maintenance and Extended Evaluation phases, respectively; hypothesis testing for clinical laboratory values, vital signs and ECG
- Increase in washout period for pasireotide LAR from 8 to 12 weeks
- Clarification added regarding expected values for normal 24-h creatinine excretion rates
- Clarifications added on prohibited and precautionary medications use
- Clarification added regarding data restriction plan (for availability of efficacy data during conduct of the study)
- Realigned secondary and exploratory objectives and endpoints
- Clarified analytical methods for some secondary and exploratory endpoints |
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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 | |||
Online references |
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http://www.ncbi.nlm.nih.gov/pubmed/33216275 http://www.ncbi.nlm.nih.gov/pubmed/31542384 |