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Spots Global Cancer Trial Database for Involvement of Endogenous Digitalis-like Compounds in Breast Cancer

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Trial Identification

Brief Title: Involvement of Endogenous Digitalis-like Compounds in Breast Cancer

Official Title: Involvement of Endogenous Digitalis-like Compounds in Breast Cancer

Study ID: NCT00310882

Interventions

Study Description

Brief Summary: The endogenous digitalis-like compounds (DLC)are steroid hormones synthesized and released from the adrenal gland.They are integrated in the feed-back system of the Hypothalami-Pituitary-Adrenal gland axis.One of their remarkable function is to induce apoptosis in malignant cells. Recently, accumulating data point to the possibility of using synthetic DLC as new anti-cancer drugs. Less is known about the endogenous metabolism of these compounds in cancer patients. Proceeding from preliminary clinical data which demonstrated significantly reduced DLC plasma levels in breast cancer patients and from in vitro data which showed an impaired release of DLC towards stress stimuli in athymic nude mice,we put up the hypothesis that a latent adrenal insufficiency with low DLC levels facilitates the induction and progression of tumor diseases.

Detailed Description: To pursue this question about endogenous DLC metabolism in cancer patients we intend to start with the measurement of DLC plasma levels in breast cancer patients at the time of first diagnosis and compare them to women with benign breast disease as well as healthy women. Aim of the Study * To evaluate the basal DLC plasma concentrations in cancer patients at the time of first diagnosis and the function of the HPA axis, with focussing on breast cancer patients. * To analyze a potential change of HPA function and, in parallel, DLC plasma concentrations in the course of therapy, with special respect to treatment failure. * To establish a potential correlation between DLC plasma concentrations and risk factors in BC. Patients and Methods Patients: I. 50 - (100) patients with breast cancer at the time of first diagnosis II. 50 - (100) patients with a benign disease of the breast III. 50 - (100) women undergoing plastic surgery of the breast IV. 50 - (100) women who need no further exploration after visit in ambulance (=normal population) V. additionally a group of 25 - 50 students (age 20-40) will be analyzed in a pilot study Methods: Time-schedule for Group I (Group II. - IV. alike, according to disease and/or situation) * Day of first presentation of the woman at the clinic * Day of first diagnosis, i.e. biopsy/FNA * Day of start of treatment: operation, chemo-/radiotherapy (tst = 0) * Day + 30, + 60, + 90 * 6 month and 1 year after start of treatment The Group V. (students) will be analyzed in a special schedule, preceding the study 1-2 months: * 4 weeks before an important exam * a day before the exam (-3 days) * a day after the exam (+ 3 days) * 2 weeks after the exam * 6 weeks after the exam Parameters Biochemistry (Group I. - V.) * Basal DLC plasma concentration * Basal serum Cortisol concentration * Basal plasma ATCH concentration * Basal Aldosterone/Renin concentration * Electrolytes (potassium, sodium, calcium, chloride) Pathology/Immunohistochemistry (Group I. + II., when benign, including last 4 points) * Tumor size * lymph node status * E/P receptors * Grade * HER2/neu * Bcl-2 * Ki67 * p53 Radiology (Group I.) If abdominal CT available measurement of size of the adrenal glands Endocrinologic tests (Group I. - IV.) * Dexamethasone-test (low dose): * 2 mg Dexamethasone p.o. at 24:00 * measurement of Cortisol and DLC at 8:00 the next morning * ACTH-test: * basal plasma concentrations of Cortisol, DLC and ACTH * administration of 250 µg ACTH (Synachten®) i.v. * measurement of Cortisol and DLC after 30 min. and 60 min. * Facultative: Metapyrone test at following time intervals: 1. Dexamethasone-test * around the time of first presentation (± 5 days) * around the time of start of treatment (± 5 days); corresponding times for Group II.- IV. * Day + 30, +60, +90 * 6 month and a year after start of treatment 2. ACTH-test * On the day of first presentation * On the day of start of treatment; corresponding times for Group II.- IV. * Day + 30, +60, +90 * 6 months and one year after start of treatment Psychometric test for Stress Evaluation (Group I. - V.) * at the day of first presentation (Students: in between the last 2 weeks before an exam) * at the end of the study

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: FEMALE

Healthy Volunteers: Yes

Locations

Hadassah Hebrew University Medical Centers, Jerusalem, , Israel

Contact Details

Name: Heidrun Weideman

Affiliation: Hadassah Hebrew University Medical Centers

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

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