Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D006333', 'term': 'Heart Failure'}, {'id': 'D012893', 'term': 'Sleep Wake Disorders'}, {'id': 'D009422', 'term': 'Nervous System Diseases'}, {'id': 'D014652', 'term': 'Vascular Diseases'}, {'id': 'D012816', 'term': 'Signs and Symptoms'}, {'id': 'D001523', 'term': 'Mental Disorders'}, {'id': 'D009461', 'term': 'Neurologic Manifestations'}, {'id': 'D002318', 'term': 'Cardiovascular Diseases'}], 'ancestors': [{'id': 'D006331', 'term': 'Heart Diseases'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}]}, 'interventionBrowseModule': {'meshes': [{'id': 'D008550', 'term': 'Melatonin'}], 'ancestors': [{'id': 'D014363', 'term': 'Tryptamines'}, {'id': 'D007211', 'term': 'Indoles'}, {'id': 'D006574', 'term': 'Heterocyclic Compounds, 2-Ring'}, {'id': 'D000072471', 'term': 'Heterocyclic Compounds, Fused-Ring'}, {'id': 'D006571', 'term': 'Heterocyclic Compounds'}, {'id': 'D006728', 'term': 'Hormones'}, {'id': 'D006730', 'term': 'Hormones, Hormone Substitutes, and Hormone Antagonists'}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE2'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'QUADRUPLE', 'whoMasked': ['PARTICIPANT', 'CARE_PROVIDER', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR']}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 0}}, 'statusModule': {'whyStopped': 'No subjects were enrolled in this study. Funding ran out.', 'overallStatus': 'WITHDRAWN', 'startDateStruct': {'date': '2009-03'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2018-01', 'completionDateStruct': {'date': '2011-03', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2018-01-17', 'studyFirstSubmitDate': '2009-03-25', 'studyFirstSubmitQcDate': '2009-03-25', 'lastUpdatePostDateStruct': {'date': '2018-01-19', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2009-03-26', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2010-03', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Change in sleep quantity assessed by actigraphy', 'timeFrame': 'measured during ambulatory phase'}], 'secondaryOutcomes': [{'measure': 'Change in quality of life and heart failure biomarkers', 'timeFrame': 'measured during study visits'}]}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'keywords': ['Heart Failure', 'Sleep Disorders', 'Melatonin', 'Antioxidants', 'Molecular Mechanisms of Pharmacological Action', 'Nervous System Diseases', 'Physiological Effects of Drugs', 'Vascular Diseases', 'Central Nervous System Depressants', 'Protective Agents', 'Pharmacologic Actions', 'Signs and Symptoms', 'Mental Disorders', 'Therapeutic Uses', 'Neurologic Manifestations', 'Cardiovascular Diseases', 'Central Nervous System Agents'], 'conditions': ['Heart Failure', 'Sleep Disorders']}, 'referencesModule': {'references': [{'pmid': '14732734', 'type': 'BACKGROUND', 'citation': 'Scheer FA, Van Montfrans GA, van Someren EJ, Mairuhu G, Buijs RM. Daily nighttime melatonin reduces blood pressure in male patients with essential hypertension. Hypertension. 2004 Feb;43(2):192-7. doi: 10.1161/01.HYP.0000113293.15186.3b. Epub 2004 Jan 19.'}, {'pmid': '15649734', 'type': 'BACKGROUND', 'citation': 'Scheer FA, Czeisler CA. Melatonin, sleep, and circadian rhythms. Sleep Med Rev. 2005 Feb;9(1):5-9. doi: 10.1016/j.smrv.2004.11.004. No abstract available.'}, {'pmid': '16130027', 'type': 'BACKGROUND', 'citation': 'Scheer FA, Zeitzer JM, Ayas NT, Brown R, Czeisler CA, Shea SA. Reduced sleep efficiency in cervical spinal cord injury; association with abolished night time melatonin secretion. Spinal Cord. 2006 Feb;44(2):78-81. doi: 10.1038/sj.sc.3101784.'}, {'pmid': '16364835', 'type': 'BACKGROUND', 'citation': 'Scheer FA. Potential use of melatonin as adjunct antihypertensive therapy. Am J Hypertens. 2005 Dec;18(12 Pt 1):1619-20. doi: 10.1016/j.amjhyper.2005.07.013. No abstract available.'}, {'pmid': '17533214', 'type': 'BACKGROUND', 'citation': 'Scheer FA, Stone PH, Shea SA. Decreased sleep in heart failure: are medications to blame? Arch Intern Med. 2007 May 28;167(10):1098-9; author reply 1099-100. doi: 10.1001/archinte.167.10.1098-b. No abstract available.'}]}, 'descriptionModule': {'briefSummary': 'The purpose of this study is to determine whether melatonin can improve sleep, quality of life and markers of heart failure in patients with heart failure.', 'detailedDescription': "Heart failure affects nearly 5 million individuals in the United States and constitutes a prime risk factor for morbidity and mortality. Beta-blockers are a class of drugs that form a critical part of the best treatment of heart failure, and thereby decrease the risk for these serious problems. Beta-blockers also lower the levels of melatonin, a hormone that has a sleep-promoting effect. Most patients with heart failure take beta-blockers and have poor sleep, which may be related to the beta-blockers' effect on melatonin levels. This study will evaluate the effectiveness of treatment with melatonin supplements in improving sleep in individuals with heart failure who are taking beta-blockers. In addition, the study will examine whether the melatonin supplements aid in improving quality of life and measures of heart failure.\n\nParticipants in this double-blind study will be randomly assigned to receive either melatonin supplements or placebo for the duration of the study.\n\nThe study will mainly take place at home, where participants will complete sleep diaries, measure blood pressure and wear a wrist watch that measures movement for 5-6 weeks. During that time there will be three visits to the hospital where plasma and urine samples will be collected and questionnaires will be completed."}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'maximumAge': '75 Years', 'minimumAge': '35 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Diagnosed with heart failure NYHA Class 2 or 3\n* Currently being treated with beta-blocker\n\nExclusion Criteria:\n\n* Diagnosed with obstructive sleep apnea\n* Using Fluvoxamine, Warfarin, Nifedipine, or Calcium Channel Blockers'}, 'identificationModule': {'nctId': 'NCT00869869', 'briefTitle': 'Melatonin Supplementation to Improve Sleep in Patients With Heart Failure', 'organization': {'class': 'OTHER', 'fullName': "Brigham and Women's Hospital"}, 'officialTitle': 'Restoration of Sleep in Heart Failure Patients', 'orgStudyIdInfo': {'id': 'ASMF-Scheer'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'melatonin', 'description': 'melatonin', 'interventionNames': ['Drug: melatonin']}, {'type': 'PLACEBO_COMPARATOR', 'label': 'placebo', 'description': 'placebo', 'interventionNames': ['Drug: placebo']}], 'interventions': [{'name': 'melatonin', 'type': 'DRUG', 'description': '2.5 mg melatonin, by mouth, 1 per day, for 3-4 weeks', 'armGroupLabels': ['melatonin']}, {'name': 'placebo', 'type': 'DRUG', 'description': 'placebo', 'armGroupLabels': ['placebo']}]}, 'contactsLocationsModule': {'locations': [{'zip': '02115', 'city': 'Boston', 'state': 'Massachusetts', 'country': 'United States', 'facility': "Brigham and Women's Hospital", 'geoPoint': {'lat': 42.35843, 'lon': -71.05977}}], 'overallOfficials': [{'name': 'Frank A.J.L. Scheer, Ph.D.', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': "Brigham and Women's Hospital, Harvard Medical School"}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': "Brigham and Women's Hospital", 'class': 'OTHER'}, 'collaborators': [{'name': 'American Academy of Sleep Medicine', 'class': 'OTHER'}], 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'Associate Professor of Medicine', 'investigatorFullName': 'Frank AJL Scheer, PhD', 'investigatorAffiliation': "Brigham and Women's Hospital"}}}}