Ignite Creation Date:
2025-12-24 @ 7:13 PM
Ignite Modification Date:
2025-12-25 @ 4:49 PM
Study NCT ID:
NCT05356403
Status:
TERMINATED
Last Update Posted:
2024-05-07
First Post:
2022-04-18
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
CR845-310302: A Study to Evaluate the Safety and Efficacy of Difelikefalin in Advanced Chronic Kidney Disease Patients With Moderate-to-Severe Pruritus
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D051436', 'term': 'Renal Insufficiency, Chronic'}, {'id': 'D011537', 'term': 'Pruritus'}, {'id': 'D007676', 'term': 'Kidney Failure, Chronic'}], 'ancestors': [{'id': 'D051437', 'term': 'Renal Insufficiency'}, {'id': 'D007674', 'term': 'Kidney Diseases'}, {'id': 'D014570', 'term': 'Urologic Diseases'}, {'id': 'D052776', 'term': 'Female Urogenital Diseases'}, {'id': 'D005261', 'term': 'Female Urogenital Diseases and Pregnancy Complications'}, {'id': 'D000091642', 'term': 'Urogenital Diseases'}, {'id': 'D052801', 'term': 'Male Urogenital Diseases'}, {'id': 'D002908', 'term': 'Chronic Disease'}, {'id': 'D020969', 'term': 'Disease Attributes'}, {'id': 'D010335', 'term': 'Pathologic Processes'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}, {'id': 'D012871', 'term': 'Skin Diseases'}, {'id': 'D017437', 'term': 'Skin and Connective Tissue Diseases'}, {'id': 'D012877', 'term': 'Skin Manifestations'}, {'id': 'D012816', 'term': 'Signs and Symptoms'}]}, 'interventionBrowseModule': {'meshes': [{'id': 'C000657129', 'term': 'difelikefalin'}, {'id': 'D013607', 'term': 'Tablets'}], 'ancestors': [{'id': 'D004304', 'term': 'Dosage Forms'}, {'id': 'D004364', 'term': 'Pharmaceutical Preparations'}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE3'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'DOUBLE', 'whoMasked': ['PARTICIPANT', 'INVESTIGATOR'], 'maskingDescription': 'Difelikefalin and placebo will be provided as enteric-coated tablets. All tablets are white in color with no markings and are identical in appearance. Difelikefalin tablets will be provided at doses of 1 mg.'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL', 'interventionModelDescription': 'Randomized, double-blind, placebo controlled study'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 105}}, 'statusModule': {'whyStopped': 'Corporate decision to discontinue work in advanced chronic kidney disease', 'overallStatus': 'TERMINATED', 'startDateStruct': {'date': '2022-08-26', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2024-05', 'completionDateStruct': {'date': '2024-02-26', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2024-05-06', 'studyFirstSubmitDate': '2022-04-18', 'studyFirstSubmitQcDate': '2022-04-29', 'lastUpdatePostDateStruct': {'date': '2024-05-07', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2022-05-02', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2024-02-26', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Efficacy Assessment Phase (Treatment Period 1): Proportion of subjects achieving at least a 4-point improvement from baseline with respect to the weekly mean of the daily 24-hour WI-NRS score at Week 12 of Treatment Period 1', 'timeFrame': 'Week 12 of Treatment Period 1', 'description': 'Intensity of itch will be measured using an NRS used to indicate the intensity of the worst itching over the past 24 hours using a 0 to 10 numeric rating scale, where "0" represents "no itching" and "10" represents "worst itching imaginable".'}], 'secondaryOutcomes': [{'measure': 'Efficacy Assessment Phase (Treatment Period 1): Proportion of subjects achieving at least a 4-point improvement from baseline with respect to the weekly mean of the WI-NRS at Week 8 of Treatment Period 1.', 'timeFrame': 'Week 8 of Treatment Period 1', 'description': 'Intensity of itch will be measured using an NRS used to indicate the intensity of the worst itching over the past 24 hours using a 0 to 10 numeric rating scale, where "0" represents "no itching" and "10" represents "worst itching imaginable".'}, {'measure': 'Efficacy Assessment Phase (Treatment Period 1): Proportion of subjects achieving at least a 4-point improvement from baseline with respect to the weekly mean of the WI-NRS at Week 4 of Treatment Period 1.', 'timeFrame': 'Week 4 of Treatment Period 1', 'description': 'Intensity of itch will be measured using an NRS used to indicate the intensity of the worst itching over the past 24 hours using a 0 to 10 numeric rating scale, where "0" represents "no itching" and "10" represents "worst itching imaginable".'}, {'measure': 'Efficacy Assessment Phase (Treatment Period 1): Proportion of subjects who are "complete itch responders" defined as subjects with ≥ 70% of the non-missing 24-hour WI-NRS scores equal to 0 or 1 at Week 12 of Treatment Period 1.', 'timeFrame': 'Week 12 of Treatment Period 1', 'description': 'Intensity of itch will be measured using an NRS used to indicate the intensity of the worst itching over the past 24 hours using a 0 to 10 numeric rating scale, where "0" represents "no itching" and "10" represents "worst itching imaginable".'}, {'measure': 'Efficacy Assessment Phase (Treatment Period 1): Change from baseline in Sleep Quality Questionnaire score at the end of Week 12 of Treatment Period 1.', 'timeFrame': 'Week 12 of Treatment Period 1', 'description': 'Sleep Quality will be measured using an NRS used to indicate how much itch has interfered with sleep during the past 24 hours using a 0 to 10 numeric rating scale, where "0" represents "did not interfere" and "10" represents "completely interfered".'}]}, 'oversightModule': {'isUsExport': False, 'oversightHasDmc': True, 'isFdaRegulatedDrug': True, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'keywords': ['difelikefalin', 'CR845', 'Pruritus', 'Chronic Itch', 'Itch', 'Itching', 'uremic pruritus', 'CKD', 'CKD-aP', 'CKD-associated pruritus', 'Chronic Kidney Disease', 'Kidney dysfunction', 'Generalized pruritus', 'Hemodialysis', 'Dialysis', 'ESRD (end stage renal disease)', 'Kidney failure, chronic'], 'conditions': ['Chronic Kidney Diseases', 'Pruritus']}, 'descriptionModule': {'briefSummary': 'This is a multicenter, double-blind, randomized, placebo-controlled study to evaluate the safety and efficacy of oral difelikefalin administered as a 1 mg tablet once daily compared to placebo in reducing the intensity of itch in advanced chronic kidney disease (CKD) patients with moderate-to-severe pruritus. This study is comprised of an Efficacy Assessment Phase and a Long-term Extension Phase. The Efficacy Assessment Phase includes a double-blind 12-week Treatment Period (Treatment Period 1), and the Long-term Extension Phase includes a double-blind Treatment Period (Treatment Period 2) of up to 52 weeks.', 'detailedDescription': 'This study will consist of a Screening Period, a 7-day Run-in Period, a 12 week double-blind Efficacy Assessment Phase (Treatment Period 1), a double-blind Long-term Extension Phase (Treatment Period 2) of up to 52 weeks, and a Follow-up Visit (7 to 10 days after the End of Treatment (EOT)/Early Termination (ET) Visit).\n\nIf patients continue to meet all inclusion and no exclusion criteria at the end of the 7-day Run-in Period, they will be randomized in a 1:1 ratio to receive once daily oral difelikefalin tablets at a dose of 1 mg or placebo for 12 weeks. Subjects will be stratified according to their use or nonuse of medications to treat pruritus prior to randomization as well as the presence or absence of specific medical conditions. During the Long-term Extension Phase, patients will be re-randomized on Day 1 of Treatment Period 2 to receive either oral difelikefalin 1 mg or placebo, once daily for up to an additional 52 weeks. A final safety Follow-up Visit will be conducted 7 to 10 days after the EOT/ET.\n\nInformed consent will be obtained prior to performing any study-specific procedures. Screening will occur within 7 to 28 days prior to randomization to assess eligibility.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'maximumAge': '85 Years', 'minimumAge': '18 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\nTo be eligible for inclusion into the study, a patient must meet the following criteria:\n\n* Advanced stage 4 and 5 CKD and end stage renal disease on hemodialysis\n* Subject self-reports experiencing at least near-daily (eg, most days of a week) pruritus for at least 6 months prior to screening.\n* Inadequate response to current or prior treatments (including emollients/moisturizers, topical medications, or systemic treatments) for pruritus prior to screening.\n\nPrior to randomization on Day 1 of Treatment Period 1:\n\n1. Has recorded at least 4 WI-NRS scores during the 7-day Run-in Period; and\n2. Has a mean baseline WI-NRS score ≥ 5, defined as the average of all non-missing scores reported during the 7-day Run-in Period.\n\nExclusion Criteria:\n\nA patient will be excluded from the study if any of the following criteria are met:\n\n* Scheduled to receive a renal replacement therapy (dialysis or kidney transplant) during the study.\n* Has a concomitant disease, significant medical condition or physical/laboratory/ECG/vital signs abnormality that, in the opinion of the investigator, puts the subject at undue risk or interferes with interpretation of study results, impedes completion of the study procedures, or compromises the validity of the study measurements.\n* New or change of treatment received for itch, including antihistamines and corticosteroids (oral, intravenous, or topical), within 14 days prior to the start of run-in.'}, 'identificationModule': {'nctId': 'NCT05356403', 'briefTitle': 'CR845-310302: A Study to Evaluate the Safety and Efficacy of Difelikefalin in Advanced Chronic Kidney Disease Patients With Moderate-to-Severe Pruritus', 'organization': {'class': 'INDUSTRY', 'fullName': 'Cara Therapeutics, Inc.'}, 'officialTitle': 'A Multicenter, Randomized, Double-blind, Placebo-controlled 12-Week Study to Evaluate the Safety and Efficacy of Oral Difelikefalin in Advanced Chronic Kidney Disease Subjects With Moderate-to-Severe Pruritus With an up to 52-Week Long-term Extension', 'orgStudyIdInfo': {'id': 'CR845-310302'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Difelikefalin 1 mg Oral Tablet', 'description': 'Patients receive oral difelikefalin 1 mg once daily', 'interventionNames': ['Drug: Difelikefalin 1 mg Oral Tablet']}, {'type': 'PLACEBO_COMPARATOR', 'label': 'Placebo Oral Tablet', 'description': 'Patients receive oral placebo once daily', 'interventionNames': ['Drug: Placebo Oral Tablet']}], 'interventions': [{'name': 'Difelikefalin 1 mg Oral Tablet', 'type': 'DRUG', 'otherNames': ['CR845'], 'description': 'Difelikefalin 1 mg medication taken orally 1 time/day', 'armGroupLabels': ['Difelikefalin 1 mg Oral Tablet']}, {'name': 'Placebo Oral Tablet', 'type': 'DRUG', 'description': 'Placebo tablet taken orally 1 time/day', 'armGroupLabels': ['Placebo Oral Tablet']}]}, 'contactsLocationsModule': {'locations': [{'zip': '91324', 'city': 'Northridge', 'state': 'California', 'country': 'United States', 'facility': 'Cara Therapeutics Study Site', 'geoPoint': {'lat': 34.22834, 'lon': -118.53675}}, {'zip': '33032', 'city': 'Miami', 'state': 'Florida', 'country': 'United States', 'facility': 'Cara Therapeutics Study Site', 'geoPoint': {'lat': 25.77427, 'lon': -80.19366}}, {'zip': '33014', 'city': 'Miami Lakes', 'state': 'Florida', 'country': 'United States', 'facility': 'Cara Therapeutics Study Site', 'geoPoint': {'lat': 25.90871, 'lon': -80.30866}}, {'zip': '33016', 'city': 'Miami Lakes', 'state': 'Florida', 'country': 'United States', 'facility': 'Cara Therapeutics Study Site', 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