Clinical Trial Details
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NCT02849743 : Intranasal Oxytocin in Hypothalamic Obesity
PhasePhase 2
AgesMin: 10 Years Max: 35 Years
Inclusion Criteria:

1. Proficient in English.

2. Males or females age 10 to 35 years, inclusive.

3. Weight = 51 kg.

4. Girls must have a negative urine/serum pregnancy test and post-menarchal girls must
use an acceptable method of contraception, including abstinence, a barrier method
(diaphragm or condom), Depo-Provera, or an oral contraceptive, for the duration of the

5. Hypothalamic obesity, defined for the purposes of this protocol as:

- previously diagnosed with a brain tumor*

- currently obese (BMI >95%ile for age/sex for < 18 years, BMI > 30 kg/m2 for 18 -
21 years)

- has at least one other endocrinopathy, indicating hypothalamic damage

- rate of annualized weight gain during any 6 month period (given variability in
clinical course) preceding or after diagnosis and treatment greater than 2
standard deviations above population reference ranges for age and sex.

6. At least 6 months since completion of therapy with stable disease/lack of recurrence.

7. Stable for at least 2 months on any pituitary replacement (e.g., glucocorticoid,
thyroid hormone, estrogen/progestin or testosterone, desmopressin, growth hormone).

8. Stable for at least 2 months on any appetite-modulating medications (e.g.,

9. Be able to ambulate independently.

10. Parental/guardian permission (informed consent) and child assent.

Exclusion Criteria:

1. Diabetes insipidus without intact thirst mechanism (i.e., history that participant is
not thirsty when hypernatremic and/or continues to be thirsty when hyponatremic, by
participant/family and/or practitioner report and medical records) and/or "brittle"
diabetes insipidus, defined as requiring >1 admission in the past year and/or any
admission within the previous 3 months.

2. Diabetes mellitus requiring insulin or insulin secretagogue. Laboratory values: HgbA1c

3. Cardiovascular condition, as defined as any of the following: i) abnormal blood
pressure, defined as <3%ile or >97%ile for age, sex and height (39); ii) history of
cardiac arrhythmia or arrhythmia detected on screening ECG; iii) history of heart
failure and/or cardiomyopathy; iv) prolonged QTc interval (QTc > 460 msec), and/or
long QT syndrome phenotype and/or positive genotype for long QT syndrome pathogenic

4. Concurrent use of medications known to prolong QTc interval and pose high risk for
Torsades de Pointes (TdP) according to the current information available
( Concomitant medications will be assessed by IDS pharmacist, in
collaboration with study cardiologist, if additional clarification is needed. In
addition, we require that potential participants be on a stable dose for at least 2
months of any medication with the potential to alter cardiac rhythm to ensure the
screening ECG reflects steady-state physiology.

5. History of liver disease, with screening laboratory studies:

Laboratory values: ALT/SGPT > 3.0X upper limit of normal or AST/SGOT > 3.0X upper
limit of normal

6. History of chronic kidney disease, with screening laboratory studies:

Laboratory values: eGFR < 60 mL/min/1.73m2, as defined by the Schwartz formula

7. Clinically significant anemia, with screening laboratory studies:

Laboratory values: Hemoglobin < 10 g/dL

8. Seizure in the past 12 months.

9. History of gastrectomy, gastric bypass, small or large bowel resection.

10. History of active substance abuse.

11. Current psychotic disorder and/or suicidality.

12. Supra-physiologic (>15 mg/m2/day) prescribed doses of hydrocortisone equivalent.

13. Anticipated clinical plan to initiate or modify pituitary hormone replacement and/or
appetite-modulating drugs during the course of the study.

14. Any investigational drug use within 30 days prior to enrollment.

15. Pregnant or lactating females.

16. Individuals with a known sensitivity to either oxytocin or the components of its

17. Inability to take an intranasal medication (e.g., recent injury).

18. Parents/guardians or subjects who, in the opinion of the Investigator, may be
non-compliant with study schedules or procedures.
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