E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Progressive precocious puberty associated with McCune-Albright Syndrome |
|
MedDRA Classification |
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 the trial is composed of two components: A safety and efficacy component and a pharmacokinetics (PK) component. All patients fulfilling the eligibility criteria will participate in both components of the trial. The safety of study treatment will be evaluated by assessments of adverse events, withdrawals, laboratory data, ovarian volume as assessed by ultrasound, including the number of ovarian cysts and size of the largest cyst, and uterine volume. The efficacy of study treatment will be based on change in frequency of vaginal bleeding days, rate of increase in bone age, and growth rate. The second component will assess the pharmacokinetics of fulvestrant in girls with progressive precocious puberty (PPP) associated with McCune-Albright syndrome (MAS).
|
|
E.2.2 | Secondary objectives of the trial |
Secondary objectives include assessments of pubertal progression through Tanner Staging and predicted adult height (PAH) for children over age six. The presence of a MAS associated Gsa mutation will be assessed by molecular analysis provided separate specific consent is obtained. No other genetic analysis will be performed with these specimens. The participation of patients and investigative sites in this analysis will be voluntary and any individual patient or site decision not to participate will not exclude them from this clinical study. |
|
E.2.3 | Trial contains a sub-study | Information not present in EudraCT |
E.3 | Principal inclusion criteria |
1. Provision of written informed consent of parent/legal guardian and subject assent (as required by local law) 2. For patients consenting to participate in the genetic portion of the study, provision of an additional written informed consent specific for DNA sampling and genetic analysis. 3. Females less than or equal to 10 years of age (prior to 11th birthday) at the start of trial therapy (Visit 0). 4. Diagnosis of McCune-Albright Syndrome based on having the following clinical criteria: · Precocious puberty evident before the age of 8 years And at least one of the following clinical criteria: · Café au lait spots · Fibrous dysplasia · Presence of Gsa mutation 5. Progressive precocious puberty associated with MAS. Progressive precocious puberty will be defined as: o An increase of at least one in the breast Tanner Stage over the observation period
and/or o The development or persistence of vaginal bleeding during the observation period. 6. At least one of the following two criteria must also be fulfilled: o Advanced bone age: defined as, bone age of at least 12 months beyond chronological age at the time of screening. o Rapid growth rate: a growth rate over the observation period that is more than 2 standard deviations above the mean for age, where the growth rate is defined as the change in height (or length) (in cm) divided by the change in time (annualized in years). 7. Patients are eligible provided they are in one of the following categories: o Received no previous treatment and have documented retrospective data of at least 6 months for bone age, Tanner Stage, height, weight, and vaginal bleeding (number of bleeding days). o Received no previous treatment and do not have documented retrospective data of at least 6 months for bone age, Tanner Stage, height, weight and vaginal bleeding (number of bleeding days) and can be observed for 6 months without treatment (i.e., 6-month observation period). o Documented progression on treatment with anastrozole, tamoxifen, testolactone, or other aromatase inhibitors, an anti-androgen, or a progestin requiring immediate treatment provided there exists retrospective data of at least 6 months for bone age, Tanner Stage, height, weight, and vaginal bleeding (number of bleeding days) and are off these agents for 1 month prior to first dose of study drug. o Previously treated with any drug for PPP in which therapy was stopped for at least 6 months with subsequent clinical evidence of progression of disease meeting entry criteria No. 5 and 6 and retrospective data of at least 6 months for bone age, Tanner Stage, height, weight, and vaginal bleeding (number of bleeding days). 8. If central precocious puberty (CPP) exists, the patient must have been on a GnRH analog (e.g., Lupron) for at least 6 months prior to study enrollment (date of written consent of parent/legal guardian and patient assent).
|
|
E.4 | Principal exclusion criteria |
1. Male gender 2. Any prior treatment of PPP associated with MAS with fulvestrant 3. Concomitant treatment of PPP associated with MAS, with the exception of bisphosphonates for fibrous dysplasia and GnRH analogs in the case of CPP 4. Liver function tests (AST, ALT) at screening ³ 3´ the upper limit of the reference range for age 5. Platelet count at screening less than 100 ´ 109/L 6. International normalized ratio (INR) greater than 1.6. 7. History of bleeding diathesis or long-term anticoagulant therapy (other than antiplatelet therapy) 8. Any severe concomitant condition that makes it undesirable for the patient to participate in this study 9. Known hypersensitivity to any component of the study drug product
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
(a) Tolerability and safety, including adverse events, withdrawals and laboratory data (b) Change in frequency of annualized days of vaginal bleeding on treatment compared to baseline (c) Proportion of patients with baseline vaginal bleeding who experienced ³50% reduction in the number of vaginal bleeding days on treatment compared to baseline (d) Proportion of patients with baseline vaginal bleeding who experienced cessation of vaginal bleeding over a 6-month trial period and over the entire 12-month trial. (e) Change in bone age advancement (rate of increase in bone age) over a 6-month trial period and over the entire 12-month trial on treatment compared to baseline (f) Change in growth rate over a 6-month trial period and over the entire 12-month trial on treatment compared to baseline PK variables for the population PK analysis will include area under the concentration-time curve (AUC), maximum and minimum plasma concentration (Cmax and Cmin, respectively), half-life (T1/2), clearance (CL/F) and apparent volume of distribution (Vss). The effects of demographic covariates (e.g., age, body weight, race) on fulvestrant PK will also be explored.
|
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | Information not present in EudraCT |
E.6.2 | Prophylaxis | Information not present in EudraCT |
E.6.3 | Therapy | Information not present in EudraCT |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Information not present in EudraCT |
E.6.8 | Bioequivalence | Information not present in EudraCT |
E.6.9 | Dose response | Information not present in EudraCT |
E.6.10 | Pharmacogenetic | Information not present in EudraCT |
E.6.11 | Pharmacogenomic | Information not present in EudraCT |
E.6.12 | Pharmacoeconomic | Information not present in EudraCT |
E.6.13 | Others | Information not present in EudraCT |
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) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | Information not present in EudraCT |
E.8.1.4 | Double blind | Information not present in EudraCT |
E.8.1.5 | Parallel group | Information not present in EudraCT |
E.8.1.6 | Cross over | Information not present in EudraCT |
E.8.1.7 | Other | Information not present in EudraCT |
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.8.3 |
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.8.5 | The trial involves multiple Member States | Yes |
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 | Information not present in EudraCT |
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 |
|
E.8.7 | Trial has a data monitoring committee | Information not present in EudraCT |
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
|
Last visit of last patient. Patients have the option to continue treatment, as long as the investigator considers it is in their best interest, until the onset of normal puberty, or if the patient experiences a drug-related toxicity requiring treatment discontinuation. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 4 |