Neurodevelopmental disorder therapy

1. A method of ameliorating a condition associated with loss-of-function mutations of the gene encoding methyl-CpG binding protein 2 (MeCP2) in a subject in need thereof, the method comprising administering to the subject a composition comprising a therapeutically effective amount of a therapeutic agent selected from the group consisting of Anavex2-73, an analog of Anavex 2-73, and any combination thereof.

2. The method of claim 1 , wherein the condition associated with loss-of-function mutations of the gene encoding MeCP2 is selected from the group consisting of abnormal breathing, abnormal cardiac function, abnormal feeding, abnormal choking, weight gain failure, abnormal sleep, seizure, abnormal gadolinium-enhancing lesions, and any combination thereof.

3. The method of claim 1 , wherein the condition associated with loss-of-function mutations of the gene encoding MeCP2 is further associated with a neurodevelopmental or a neurological disease.

4. The method of claim 3 , wherein the neurodevelopmental or neurological disease is selected from the group consisting of multiple sclerosis, Rett Syndrome, cerebral palsy, Angelman syndrome, Williams syndrome, pervasive developmental disorder not otherwise specified (PDD-NOS), childhood disintegrative disorder, Smith-Magenis syndrome, non-syndromic mental retardation, idiopathic neonatal encephalopathy and idiopathic cerebral palsy, and autism spectrum disorder.

5. The method of claim 3 , wherein the neurodevelopmental or neurological disease is multiple sclerosis, Rett Syndrome, Williams syndrome, or Smith-Magenis syndrome.

6. The method of claim 1 , wherein the therapeutic agent is Anavex2-73.

7. The method of claim 1 , wherein the therapeutic agent is an analog of Anavex2-73.

8. The method of claim 7 , wherein the therapeutic agent is selected from the group consisting of A1-41, A19-144, and any combination thereof.

9. The method of claim 1 , wherein the therapeutically effective amount is a dosage of about 0.5 mg/day to about 100 mg/day.

10. The method of claim 1 , wherein the composition is selected from the group consisting of an oral composition, a transdermal composition and a parenteral composition.

11. The method of claim 1 , wherein the subject is an adult, a child, or an infant.

12. The method of claim 1 , wherein the subject is a child or an infant, and wherein the therapeutically effective amount is from about 0.5 mg/day to about 20 mg/day.

13. The method of claim 3 , wherein the subject is an adult, and wherein the condition associated with loss-of-function mutations of the gene encoding MeCP2 is further associated with multiple sclerosis.

14. The method of claim 13 , wherein the composition is an oral composition comprising about 30 mg to about 40 mg of Anavex2-73, of an analog of Anavex 2-73, or of any combination thereof.

15. The method of claim 3 , wherein the subject is a child or an infant, and wherein the neurodevelopmental or neurological disease is Rett Syndrome.

16. The method of claim 15 , wherein the composition is an oral composition and the therapeutically effective amount is about 2 mg to about 40 mg.

17. The method of claim 3 , wherein the subject is a child or an infant, and wherein the neurodevelopmental or neurological disease is Williams Syndrome or Smith-Magenis Syndrome.

18. The method of claim 1 , wherein the composition is an intravenous composition, and wherein the therapeutically effective amount is about 0.5 mg to about 5 mg.

19. The method of claim 1 , wherein the composition is administered daily, every other day, or every fifth day.

20. The method of claim 1 , wherein the composition is administered to the subject for a period of at least 5 days, at least 10 days, at least 15 days, at least 60 days, at least 6 months, a least 1 year, at least 2 years, at least 3 years, at least 4 years, or at least 5 years.