E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Treatment of Cushing's syndrome caused by ectopic Adrenal Corticotrophin Hormone (ACTH) secretion. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Hormonal diseases [C19] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10011652 |
E.1.2 | Term | Cushing's syndrome |
E.1.2 | System Organ Class | 10014698 - Endocrine disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10014146 |
E.1.2 | Term | Ectopic ACTH syndrome |
E.1.2 | System Organ Class | 10014698 - Endocrine disorders |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of this study is to demonstrate that daily administration of mifepristone in subjects with Cushing’s syndrome caused by ectopic ACTH secretion will improve or normalize the glucocorticoid-dependent glycemic disorders as well as a list of predefined symptoms attributable to the Cushing’s syndrome. |
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E.2.2 | Secondary objectives of the trial |
The secondary objectives of this study are to assess the impact of long-term administration of mifepristone on the other symptoms of Cushing syndrome, the steady state pharmacokinetic profile of the agent and the safety of the agent. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects will be included if they have ALL of the three following criteria:
1. Hypercortisolism from Cushing’s syndrome caused by ectopic ACTH secretion confirmed by:
- Inferior petrosal sinus sampling (IPSS) with a central to peripheral ACTH ratio of less than 2.0 before CRH administration and less than 3.0 after CRH administration.
- or biopsy with ACTH immunoreactivity.
- or presence of a tumor evidenced by imaging combined with both a negative CRH test and a negative 8 mg dexamethasone suppression test.
No major change in tumor status/anti-tumor therapy should be expected during the study
AND
2. Glycemic disorder that is considered to be caused or worsened by the hypercortisolism.
Glycemic disorders will be defined and categorized at pre-inclusion as follows:
o Known diabetes defined by
fasting plasma glucose level ≥ 7.0 mmol/l (126 mg/dL)
or treated diabetes. In addition, treatment should be stable, i.e.
- for thiazolidinediones, patients must have been on stable therapy for at least four months prior to study entry
- for all other diabetes treatments, patients must have been on stable therapy for at least two weeks prior to study entry, for insulin the dose should be stable as long as possible before study entry
o Diabetes diagnosed at pre-inclusion visit and defined by:
2-hour glucose plasma level after 75 g OGTT ≥ 11.1 mmol/L (200 mg/dL)
o Impaired Glucose Tolerance (IGT) defined at pre-inclusion visit by:
2-hour glucose plasma level after 75 g OGTT ≥ 7.8 mmol/L (140 mg/dL) and < 11 mmol/L (200 mg/dL)
o Impaired Fasting Glucose (IFG) defined at pre-inclusion visit by:
fasting plasma glucose level ≥ 5.5 mmol/L (100 mg/dL) and < 7 mmol/L (126 mg/dL)
AND
3. At least one of the following clinical symptoms attributable to the Cushing’s syndrome:
o Increased weight gain ≥ 5% within 1 year
o Overweight defined by BMI > 25 kg/m2
o Truncal obesity defined by waist circumference ≥ 94 cm for men or ≥ 80 cm for women (IDF definition) and/or documented by truncal fat mass at DEXA scan
o Depression (treated or not) defined by a BDI-II score > 1
o Proximal muscle weakness as assessed by straight leg lift clinical test < 120 sec
o Bruising evaluated at clinical examination and with photos if possible
o Violaceous striae evaluated at clinical examination and with photos if possible
o Facial plethora evaluated at clinical examination and with photos if possible
o Dorsocervical fat pad evaluated at clinical examination and with photos if possible
In addition, the following criteria should be met:
- Written informed consent to participate in the study (including taking photos)
- Female subjects should be sterilized, post-menopausal, sexually inactive or willing to use barrier methods of contraception throughout the study.
- Subject willing to return to investigational site during the full course of the study
- Age in the range of 18 to 85 years inclusive
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E.4 | Principal exclusion criteria |
- Evidence for Cushing’s disease as judged by positive inferior petrosal sinus sampling or a lesion on pituitary MRI with positive CRH test
- Suspected or known adrenocortical cancer or adenomas, as judged by ACTH values < 10 pg/ml and adrenal mass
- Subjects with cyclic Cushing’s syndrome defined by any measurement of Urinary Free Cortisol over the previous 2 months < 2 times the upper normal limit
- Children (age less than 18) and patients over 85 years
- Pregnant or lactating women. A urinary pregnancy test will be performed in women of childbearing potential unless they have a history of menopause prior to Cushing’s syndrome or hysterectomy
- Life expectancy less than two months
- Surgery planned within 8 weeks after inclusion, especially bilateral adrenalectomy
- Uncontrolled diabetes (plasma glucose > 15.0 mmol/ (270 mg/dL) and/or HbA1c > 10%)
- Uncontrolled hypertension (blood pressure > 180/110 mmHg)
- Recent (less than two weeks prior to inclusion) initiation of corrective treatments for depression
- Clinically significantly impaired cardiovascular function (e.g. stage IV cardiac failure)
- Severe liver disease (liver enzymes ≥ 3 x the institutional upper limit of normal range)
- Severe renal impairment (serum creatinine ≥ 2.2 mg/dl or creatinine clearance < 30 ml/min)
- Severe hypokalemia (plasma K < 3.0 mm/L).
- Uncontrolled severe active infection
- In women, known endometrial cancer, history of endometrial hyperplasia or vaginal bleeding of unknown cause
- Premenopausal women with hemorrhagic disorders or on anticoagulants
- Recent (less than two weeks prior to inclusion) initiation of or significant change in dose of anti-tumor therapy
- Previous treatment with approved or experimental steroidogenesis inhibitors, somatostatin analogues within one week of admission (eight weeks for patients on octreotide LAR or on lanreotide autogel).
- Plasma mitotane concentration > 5 µg/ml
- Impaired mental capacity or markedly abnormal psychiatric evaluation that precludes informed consent
- Body weight over 136 kg, which is the limit for the tables used in the scanning areas
- Inherited porphyria
- Positive pregnancy test at inclusion
- Use of antiretroviral agents, midazolam, cabergoline, erythromycin, or grapefruit juice within two weeks of the study
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E.5 End points |
E.5.1 | Primary end point(s) |
Patients will be considered to be responders if they meet the following criteria at primary evaluation visit:
- Improvement or normalization of glycemic disorders
AND
- Global improvement of the predefined list of clinical symptoms attributable to the Cushing’s syndrome
• Criteria for improvement or normalization of glycemic disorders
A. For diabetic patients (known or diagnosed at pre-inclusion visit)
- Decrease in HbA1c > 0.3%
B. For patients with IGT
- Normalization of OGTT (2-hour glucose plasma level after 75 g OGTT < 7.8 mmol/L (140 mg/dL)
D. For patients with IFG
If impaired fasting glucose is also associated with impaired glucose tolerance during OGTT at pre-inclusion:
- Normalization of OGTT (2-hour glucose plasma level after 75 g OGTT < 7.8 mmol/L (140 mg/dL)
If impaired fasting glycemia is associated with normal OGTT at pre-inclusion (except at T0):
- Normalization of fasting plasma glucose (fasting plasma glucose < 5.5 mmol/L (100 mg/dL)
• Criteria for global improvement of clinical symptoms attributable to the Cushing’s syndrome
- Weight
- Body Mass Index
- Truncal obesity (waist circumference, DEXAscan)
- Depression (Beck scale); depression will be used as endpoint only for those subjects on stable anti-depressant therapy for at least two months prior to study entry
- Proximal muscle weakness
- Bruising
- Violaceous striae
- Facial plethora
- Dorsocervical fat pad
For each parameter, comparison with baseline will be made and scored as follows:
• No modification: 0
• Improvement or normalization: 1
• Worsening: - 1
If one of these symptoms was not present at inclusion but appears while the patient is on study drug, it will be scored -1
The sum of the 10 scores will be made and overall evaluation of the Cushing’ syndrome symptoms will be classified in 2 categories:
• Improvement or normalization if the sum > 0
• No improvement or worsening if the sum ≤ 0
The scoring of each symptom will be performed by the DSMB on the basis of predefined rules.
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E.5.2 | Secondary end point(s) |
Secondary efficacy variables
Changes with respect to inclusion visit in the following parameters will be documented for each subject.
• Secondary glycemic disorder parameters
A. For diabetic patients
- Improvement of the following parameters: glycemic profile, fasting blood glucose, fructosamine, 2-hour OGTT (for diabetics diagnosed at screening)
- Number of anti-diabetics treatment or dose of anti-diabetics treatment for diabetic patients already on diabetes treatment at inclusion
- Doses of insulin for insulin-treated patients
B. For patients with IGT
- HbA1c
- Fructosamine
C. For patients with IFG
- HbA1c
- Fructosamine
D. For all patients
- Fasting plasma insulin
- Area Under the Curve of OGTT results when OGTT performed
- HOMA index
• Investigator’s assessment on patient’s overall profile evolution from baseline
• Blood pressure:
o The mean value of the 2 last measurements will be calculated
o The number of antihypertensive treatments (number of active ingredient per therapeutic class) will be counted
• Body composition (in particular leg, arm and sub-total fat mass) as determined by DEXA scan
• Metabolic syndrome (according to NCEP and IDF definitions)
• Fatigue (MFI-20)
• Quality of life (SF-36v2™)
• Impaired cognition/memory (MMSE™)
• Laboratory Variables: hormones (LH, FSH, TSH, free T3, free T4, SHBG, CBG, estradiol in women, total testosterone in men) biochemistry, haematology, urinalysis
• Osteocalcin |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
E.8.2.2 | Placebo | Information not present in EudraCT |
E.8.2.3 | Other | Information not present in EudraCT |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 6 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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last visit of the last subject undergoing the trial |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |