A phase II, randomized, double-blind, placebo-controlled, in parallel groups clinical trial to assess the safety and efficacy of dietary supplementation with tryptophan to achieve weight loss, and its neuropsychological effects in adolescents with obesity.

Conditions: obesity
MedDRA version: 14.1Level: PTClassification code 10029883Term: ObesitySystem Organ Class: 10027433 - Metabolism and nutrition disorders
Therapeutic area: Body processes [G] - Metabolic Phenomena [G03]

Registration Number: EUCTR2009-016921-32-ES

Lead Sponsor: Fundació Sant Joan de Déu

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Authorised-recruitment may be ongoing or finished

Sex: All

Target Recruitment: Not specified

Inclusion Criteria

1. Both male and female patients, attending the Pediatric Endocrinology Service on an out-patient basis.
2. Age from 12 to 17 years, inclusively.
3. Presence of a BMI > or = to 2SD and < or = to 4SD (standard deviations) for their age and sex (Spanish cross-sectional growth reference tables of 2008)
4. Patients must have an educational level that permits adequate communication and must agree to cooperate in all the tests and examinations included in the protocol.
5. Subjects of reproductive potential must use an effective birth control method during the study. Women of reproductive age will be recruited after a negative pregnancy test.
6. The informed consent of the parents or legal representative and of the young adults is required.
Are the trial subjects under 18? yes
Number of subjects for this age range: 60
F.1.2 Adults (18-64 years) no
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) no
F.1.3.1 Number of subjects for this age range

Exclusion Criteria

1. Obesity secondary to an endocrine disease (hypothyroidism, Cushing?s syndrome, polycystic ovary, hypothalamic syndromes, hypogonadism) or the use of medications such as cortisol.
2. Concomitant administration of other psychotrophic medication such as antidepressants or anxiolytics.
3. Patients included in the study must not be taking any vitamins or nutritional supplements or any anti-obesity preparations, including herbal remedies, pharmacy products or homeopathic products.
4. Patients with a known psychiatric disorder.
5. Patients treated with any kind of structured psychotherapy regime.
6. Patients with type 2 DM, arterial hypertension (blood pressure above the 95 percentile for gender and height) or steatotic liver (hypertransaminasemia with echographic image of fatty liver).
7. Patients with any severe food intolerance, or with a known allergy to any of the substances used in the study.
8. Patients in treatment with oral hypoglycemiants.
9. Pregnant or breast-feeding.