Phase 2 Rare Disease Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- You must be a male adult.
- You must be between 18 and 45 years old.
- You must weigh between 50 kg (about 110 lbs) and 100 kg (about 220 lbs).
- Your Body Mass Index (BMI) must be between 18.5 and 32 (a measure of body weight relative to height).
- You must have a confirmed diagnosis of Fragile X syndrome, proven through both clinical assessment and a genetic test showing more than 200 CGG repeats in the FMR1 gene.
- You must have a parent or reliable caregiver who agrees to attend all study visits with you, provide information about you as needed, and help ensure you follow study requirements.
- A legal representative must understand and agree to the study procedures, and if only one parent signs, they must confirm the other parent does not object to your participation.
- You must be willing to participate and agree to take part.
- A legal representative must sign a consent form before any study procedures begin.
- A clinician experienced in Fragile X syndrome must rate your condition at a certain level of severity (CGI-S score of 3 or higher); you must also be able to move around independently, have adequate vision and hearing, be understandable most of the time, and use spoken language as your main way of communicating.
- You must be expected to attend and complete all scheduled study visits and procedures.
- You must score above 4 on a specific thinking and reasoning test (VCI scaled score on the WISC-V), based on your mental age (confirm with trial site).
Who may not be able to join:
- You have a history of infantile spasms, seizures, or epilepsy, serious head injury, or infections of the brain or nervous system (such as meningitis) — though a history of simple childhood febrile (fever-related) seizures may be acceptable.
- You currently have a severe form of autism spectrum disorder (Level 3), or a primary psychiatric condition as defined by medical diagnostic guidelines (DSM-5); some secondary conditions like ADHD, depression, anxiety, or conduct disorders may be allowed if they are stable and not expected to interfere with the study (confirm with trial site).
- You have a current diagnosis of substance use disorder according to DSM-5 guidelines.
- A brain wave test (EEG) shows certain abnormal patterns beyond what would normally be expected for your age.
- You have any life-threatening medical condition.
- You have any other significant health condition or finding that, in the doctor's opinion, could interfere with the study or put your safety at risk.
- You have any significant findings on a physical examination, including abnormal vital signs, as judged by the doctor.
- You have any significant abnormal results on blood tests or a heart tracing (ECG) at the screening stage or before starting the study medication.
- You have a known allergy or sensitivity to any ingredient in the study medication.
- You have taken certain antipsychotic or antidepressant medications (including SSRIs) within the 8 weeks before screening — though sertraline at a maximum dose of 100 mg/day with no changes in the 8 weeks before the study starts may be acceptable (confirm with trial site).
- You are currently taking more than 3 medications that affect the mind or mood at the same time, or have been in the 8 weeks before screening.
- You have started taking any new prescription or over-the-counter medication (other than occasional use of paracetamol/acetaminophen) in the 2 weeks before the study starts.
- You have taken part in another clinical trial using an experimental treatment within the 8 weeks before screening.
- You have hearing or vision problems that cannot be corrected with glasses, hearing aids, or similar devices.
- A urine test shows the presence of alcohol (EtG/EtS markers).
- A urine test shows the presence of recreational drugs.
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Rafael De la Torre, Pharm, PhD, Hospital del Mar Medical Research Institute
Phone: (+34) 934034509
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Treatment-emergent adverse events (TEAEs).; Treatment-emergent potentially clinically significant abnormalities (PSCAs) in blood pressure (mmHg).; Treatment-emergent potentially clinically significant abnormalities (PSCAs) in pulse rate (bpm).; Treatment-emergent potentially clinically significant abnormalities (PSCAs) in body temperature (ºC).; Treatment-emergent potentially clinically significant abnormalities (PSCAs) in electrocardiogram (ECG) values: heart rate (bpm).; Treatment-emergent potentially clinically significant abnormalities (PSCAs) in electrocardiogram (ECG) values: rhythm.; Tr...
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.