E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Fragile X syndrome (FXS) is a rare genetic disorder caused by the deficiency or absence of Fragile X Messenger Ribonucleoprotein 1 (FMRP), an RNA-binding protein and the gene product of the FMR1 gene. FXS is most commonly caused by silencing of the FMR1 gene due to a trinucleotide repeat expansion. In FXS patients, the relative absence of functional FMRP is associated with critical impairments in neurodevelopment and learning, as well as disruption to other neuronal and non-neuronal functions.
|
|
E.1.1.1 | Medical condition in easily understood language |
Fragile X syndrome (FXS) is a rare disease caused by lack of Fragile X Messenger Ribonucleoprotein 1 due to a faulty gene. It mainly causes learning difficulties in patients. |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10017324 |
E.1.2 | Term | Fragile X syndrome |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
|
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 |
To evaluate the efficacy of ZYN002 administered as a transdermal gel formulation in patients ages 3 to <23 years, in the treatment of behavioral symptoms of FXS |
|
E.2.2 | Secondary objectives of the trial |
To further evaluate the efficacy of ZYN002 in the treatment of symptoms of FXS. |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or female children, adolescents and young adults aged 3 to <23 years, at the time of Screening. 2. Patient resides with caregiver who will continue to provide consistent care throughout the study. 3. Judged by the Investigator to be in generally good health at Screening based upon the results of a medical history, physical examination, 12-lead ECG, and clinical laboratory test results. Laboratory results outside of the reference range must be documented as not clinically significant by both the Investigator and Sponsor. 4. Patients must have a diagnosis of FXS through molecular documentation of full mutation of the FMR1 gene documented through genetic testing at Screening. 5. Patients with an ABC-CFXS Social Avoidance score of ≥ 5 at Screening and at Visit 2. 6. Patients with a history of seizure disorders must currently be receiving treatment with a stable regimen of no more than two AEDs for the four weeks preceding study Screening; or must be seizure-free for one year if not currently receiving AEDs. 7. Patients who are taking psychotropic medication(s) should be on a stable regimen of no more than three such medications for at least four weeks preceding study Screening and must maintain that regimen throughout the study. Psychotropic medications include (but are not limited to) antipsychotics, antidepressants, anxiolytics, attention-deficit / hyperactivity disorder (ADHD) medications, and medications for sleep. 9. Patients have a body mass index between 12–30 kg/m2 (inclusive) and patients with a body mass index >30 kg/m2 and <40 kg/m2 with normal liver function laboratory values and with no immediate family history of fatty liver disease. |
|
E.4 | Principal exclusion criteria |
2. Patient has transitioned to independent living or living in a residential facility such as a university setting or congregate care. 3. History of significant allergic condition, significant drug-related hypersensitivity, or allergic reaction to any compound or chemical class related to ZYN002 or its excipients. 4. Exposure to any investigational drug or device ≤30 days prior to Screening or at any time during the study. 5. Patient has alanine aminotransferase (ALT), aspartate aminotransferase (AST), or total bilirubin levels ≥2 times the upper limit of normal (ULN) or has alkaline phosphatase levels ≥3 times the ULN as determined from Screening safety laboratories. 6. Use of cannabis or any THC or CBD-containing product within 3 months of Screening Visit or during the study (aside from ZYN002). 8. Patient is using the following AEDs: clobazam, phenobarbital, ethosuximide, felbamate, or vigabatrin. 9. Patient is using any strong inhibitor/inducer of CYP3A4 or sensitive substrate for CYP3A4 including but not limited to the following medications: midazolam (except single doses administered for the purposes of obtaining blood samples and ECG’s), oral ketoconazole, fluconazole, nefazadone, rifampin, alfentanil, alfuzosin, amiodarone, cyclosporine, dasatinib, docetaxol, eplerenone, ergotamine, everolimus, fentanyl, halofantrine, irinotecan, lapatinib, levomethadyl, lumefantrine, nilotinib, pimozide, quinidine, ranolazine, sirolimus, tacrolimus, temsirolimus, toremifene, tretinioin, vincristine, vinorelbine, and St. John’s Wort. 10. Patients may not be taking any benzodiazepines (except single doses administered for the purposes of obtaining blood samples and ECG’s) at screening or throughout the study. 13. Patient has an acute or progressive neurological disease, psychosis, schizophrenia, or any psychiatric disorder or severe mental abnormalities (other than FXS) that are likely to require changes in drug therapy or interfere with the objectives of the study or the ability to adhere to protocol requirements. 17. Any skin disease or condition, including eczema, psoriasis, melanoma, acne, contact dermatitis, scarring, imperfections, lesions, tattoos, or discoloration, that may affect treatment application, application site assessments, or absorption of the trial drug.
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Primary Endpoint: Change from Baseline to Week 18 in the ABC-CFXS Social Avoidance subscale score in patients with complete methylation of the FMR1 gene. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
From screening up to Week 18 |
|
E.5.2 | Secondary end point(s) |
Key Secondary endpoints: 1. Change from Baseline to Week 18 in ABC-CFXS Irritability subscale score in patients with complete methylation of the FMR1 gene. 2. Percent of patients with any improvement on the CaGI-C at Week 18 for Social Interactions among patients with complete methylation of the FMR1 gene. 3. Percent of patients rated as improved on the CGI-I scale (minimally, much, very much improved) at Week 18 among patients with complete methylation of the FMR1 gene. 4. Change from Baseline to Week 18 in the ABC-CFXS Social Avoidance subscale score among all randomized patients (complete and partial methylation of the FMR1 gene).
Other Secondary Efficacy Endpoints will be evaluated in the patients with complete methylation of the FMR1 gene and in all randomized patients. -Percent of patients with a clinically meaningful within-subject improvement from Baseline in ABC-CFXS Social Avoidance subscale score at Week 18 among patients. -Percent of patients with a clinically meaningful within-subject improvement from Baseline in ABC-CFXS Irritability subscale score at Week 18 among patients. -Change from Baseline in ABC-CFXS Social Avoidance and Irritability subscale scores at Weeks 10 and 14 in patients. -Change from Baseline in ABC-CFXS Socially Unresponsive/Lethargic, Stereotypy, Inappropriate Speech, and Hyperactivity subscale scores at Weeks 10, 14, and 18 in patients. -Percent of patients with any improvement on the CaGI-C at Week 18 for Social Avoidance and Isolation, Irritable and Disruptive Behaviors, and Overall Behavior among patients. -Percent of patients with any improvement on the CaGI-C at Week 18 for Social Interactions among all randomized patients. -Percent of patients rated as improved on the CGI-I scale (minimally, much, very much improved) at Week 18 among all randomized patients. -Incidence of TEAEs and SAEs by relationship to treatment and severity; incidence of SAEs/AEs leading to treatment discontinuation. -Changes in vital signs, clinical laboratory tests, and ECG. |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
From screening up to Week 18 |
|
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 | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
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) | No |
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 | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
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) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
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 |
Australia |
United Kingdom |
United States |
|
E.8.7 | Trial has a data monitoring committee | No |
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
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 7 |