A Study of the Experimental Medicine ANAVEX2-73 For Rett Syndrome

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Age: 18 to 45 years old
Healthy Volunteers: No
Keywords: Rett Syndrome
Type: Drug study, Phase 2
5 Participants
This research is being done to answer important questions that might help change or improve treatment for Rett Syndrome. Rett syndrome (RTT) is a rare genetic progressive neurodevelopmental disorder. It is mostly linked to mutations in the MECP2 gene. This affects multiple brain functions including communication, gait, and hand use. Because the MECP2 is gene is on the chromosome, few males live past birth. Therefore, most affected individuals with RTT are females.

RTT becomes evident between 1.5-3 years of life. Signs are early developmental regression, expressive language and fine motor (hand) function difficulties . Other clinical manifestations are:
- repetitive hand movements
- impairment in ambulation
- severe intellectual disability
- breathing abnormalities while awake
- seizures
- sleep problems
- behavioral problems such as anxiety, disruptive behavior, and mood abnormalities.

The experimental drug being tested in this study is called ANAVEX®2-73. Since it is still being studied (experimental), it is not yet approved by the U.S. Food and Drug Administration (FDA), and doctors cannot prescribe it.

We want to get more information about how ANAVEX®2-73 might:
- improve cognition and sleep,
- decrease anxiety and other behaviors,
- improve motor function and seizures, if applicable in people with RTT.
This study requires

The study team will make sure you qualify to take part in the study. Qualified participants will receive detailed information about the study. This may include a list of study-related tests and procedures.

Who can participate

Inclusion criteria:

  • Aged ≥ 18 years, inclusive.
  • Diagnosis of classic RTT, according to 2010 criteria (Neul et al., 2010), and a MECP2 mutation.
  • Current pharmacological treatment regimen, including supplements, has been stable for at least 4 weeks.
  • If on antiepileptic drugs (AEDs), 1-4 AEDs allowed. Treatment must be stable (drug, dose, interval of administration) for 30 days prior to enrollment.
  • Ability to keep accurate seizure diaries or have caregiver who can keep accurate seizure diaries.
  • Confirmation from the participant that, if of childbearing potential is not pregnant through urine pregnancy testing. Female patients of childbearing potential and at risk for pregnancy must agree to abstinence.
  • Prior to the conduct of study-specific procedures, the subject's parent/caregiver/LAR must provide written informed consent. If applicable, the research team must attempt to obtain consent from both parents.

Exclusion criteria:

  • Patients who have a progressive medical or neurological condition that in the opinion of the Investigator would interfere with the conduct of the study.
  • Current clinically significant systemic illness that is likely to result in deterioration of the patient's condition or affect the patient's safety during the study.
  • History of clinically evident stroke or clinically significant carotid or vertebrobasilar stenosis or plaque or other history of neurologic (e.g., head trauma with loss of consciousness) or psychiatric condition that the Investigator deems may interfere with interpretability of data.
  • Indication of liver disease, defined by serum levels of ALT (SGPT), AST (SGOT), or alkaline phosphatase above 3x upper limit of normal (ULN) as determined during screening.
  • Treatment with immunosuppressive medications (e.g., systemic corticosteroids) within the last 90 days (topical and nasal corticosteroids and inhaled corticosteroids for asthma are permitted) or chemotherapeutic agents for malignancy within the last 3 years.
  • Other clinically significant abnormality on physical, neurological, laboratory, or electrocardiogram (ECG) examination (e.g., atrial fibrillation) that could compromise the study or be detrimental to the participant.
  • Any known hypersensitivity to any of the excipients contained in the study drug or placebo formulation.
  • Other co-morbid or chronic illness beyond that known to be associated with RTT.
  • Subjects who plan to initiate or change pharmacologic or nonpharmacologic intervention during the course of the study.
  • Subjects on potent CYP 3A4 and CYP2C19 inhibitors and inducers.
  • Subjects taking another investigational drug currently or within the last 30 days.
  • Any other criteria (such as a clinically significant screening blood test result), which in the opinion of the Investigator could interfere with the study conduct or outcome.
  • Patients with hepatic and renal impairment.
Benefits and risks of participating

We cannot promise any benefits to you as a result of taking part in this research study.


The study doctor will discuss the risks associated with taking part in this research study.
You will not be paid to take part in this research study.
Study duration and period
We expect that you will be in this research study for about 7 to 11 weeks.
Recruitment period
From Sept. 9, 2019
Research Topic
  • Rett Syndrome

Have any questions or want to learn more? Leave your contact details below and the research team will reach out to you.


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