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Trial details imported from

For full trial details, please see the original record at

Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
ANAVEX2-73 Study in Pediatric Patients With Rett Syndrome
Scientific title
A Double-Blind, Randomized, Placebo-Controlled, Safety and Efficacy Study of ANAVEX2-73 in Patients With Rett Syndrome
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Rett Syndrome 0 0
Condition category
Condition code
Human Genetics and Inherited Disorders 0 0 0 0
Other human genetics and inherited disorders
Neurological 0 0 0 0
Other neurological disorders
Other 0 0 0 0
Research that is not of generic health relevance and not applicable to specific health categories listed above

Study type
Description of intervention(s) / exposure
Treatment: Drugs - ANAVEX2-73 oral liquid
Treatment: Drugs - Placebo oral liquid

Experimental: ANAVEX2-73 Active - ANAVEX2-73 liquid oral solution

Placebo Comparator: ANAVEX2-73 Placebo - Placebo liquid oral solution

Treatment: Drugs: ANAVEX2-73 oral liquid
Liquid oral solution

Treatment: Drugs: Placebo oral liquid
Liquid oral solution

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Primary outcome [1] 0 0
RSBQ - Change from baseline to End of Treatment (EOT) in the Rett Syndrome Behaviour Questionnaire (RSBQ)
Timepoint [1] 0 0
12 weeks
Primary outcome [2] 0 0
CGI-I - Change from baseline to End of Treatment (EOT) in the Clinical Global Impression Improvement Scale (CGI-I) score
Timepoint [2] 0 0
12 weeks
Secondary outcome [1] 0 0
Anxiety, Depression, and Mood Scale (ADAMS) - Anxiety, Depression, and Mood Scale (ADAMS)
Timepoint [1] 0 0
12 weeks
Secondary outcome [2] 0 0
Motor Behavioral Assessment-7 dynamic pediatric items (MBA-Ped7) - Motor Behavioral Assessment-7 dynamic pediatric items (MBA-Ped7)
Timepoint [2] 0 0
12 weeks
Secondary outcome [3] 0 0
Children's Sleep Habits Questionnaire (CSHQ) - Children's Sleep Habits Questionnaire (CSHQ)
Timepoint [3] 0 0
12 weeks
Secondary outcome [4] 0 0
Seizure Frequency via seizure diary - Seizure Frequency via seizure diary
Timepoint [4] 0 0
12 weeks
Secondary outcome [5] 0 0
Incidence of Adverse Events - Incidence of Adverse Events
Timepoint [5] 0 0
12 weeks

Key inclusion criteria
- Aged = 5 years to <18.

- Diagnosis of classic RTT, according to 2010 criteria, and a MECP2 mutation.

- Post-regression stage, defined as = 6 months since last loss of spoken language or
motor (fine or gross) skills.

- Clinical Global Impression - Severity (CGI-S) score of 4 or greater at Screening.

- Current pharmacological treatment regimen, including supplements, has been stable for
at least 4 weeks.

- If on AEDs, 1-4 AEDs allowed. Treatment must be stable (drug, dose, interval of
administration) for 30 days prior to enrollment.

- If the subject is already receiving stable non-pharmacologic educational, behavioral,
and/or dietary interventions, participation in these programs must have been
continuous during the 90 days prior to the screening visit and subjects or their
parent/caregiver/LAR will not electively initiate new or modify ongoing interventions
for the duration of the study.

- 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 (or serum) 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.
Minimum age
5 Years
Maximum age
18 Years
Can healthy volunteers participate?
Key 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

- History or clinically evident 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

- 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

- Other clinically significant abnormality on physical, neurological, laboratory, or
electrocardiogram (ECG) examination (e.g., long QT) 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 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

- Subjects on potent CYP 3A4 and CYP2C19 inhibitors and inducers (e.g., oxcarbazepine).

- Patients with hepatic and renal impairment.

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Other design features
Phase 2/Phase 3
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
The Children's Hospital at Westmead - Sydney
Recruitment hospital [2] 0 0
Queensland Children's Hospital - Brisbane
Recruitment postcode(s) [1] 0 0
2145 - Sydney
Recruitment postcode(s) [2] 0 0
4101 - Brisbane

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Anavex Life Sciences Corp.
Other collaborator category [1] 0 0
Name [1] 0 0
Anavex Australia Pty Ltd.
Address [1] 0 0
Country [1] 0 0
Other collaborator category [2] 0 0
Name [2] 0 0
Anavex Germany GmbH
Address [2] 0 0
Country [2] 0 0

Ethics approval
Ethics application status

Brief summary
ANAVEX2-73-RS-003 is a Phase 2/3, double-blind, randomized, placebo-controlled dose
escalation safety, tolerability and efficacy study in patients 5-18 years of age with RTT
using endpoints including multiple clinical and exploratory molecular and biochemical
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Walter Kaufmann, MD
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
For IPD and results data, please see