[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100558134":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":26,"locations":37,"responsibleParty":50,"collaborators":26,"id":52,"slug":53,"hasResults":54,"nctId":55,"briefTitle":56,"officialTitle":57,"acronym":26,"eligibilityCriteria":58,"healthyVolunteers":59,"sex":60,"minAge":61,"maxAge":62,"enrollmentInfo":63,"targetDuration":26,"studyType":66,"phases":67,"briefSummary":69,"conditions":70,"keywords":72,"overallStatus":77,"whyStopped":26,"lastUpdateSubmitDate":78,"lastUpdatePostDateStruct":79,"startDateStruct":81,"completionDateStruct":83,"leadSponsor":85,"locationsCount":86},{"fullName":5,"class":6},"AstraZeneca","INDUSTRY",[8,15],{"label":9,"type":10,"description":11,"interventionNames":12},"Part A: Midazolam + Camizestrant","EXPERIMENTAL","Participants will receive a single oral dose of midazolam on Day 1 in Period 1, followed by oral dose of camizestrant OD from Day 2 to Day 6 in Period 2, and then single oral dose of midazolam with camizestrant on Day 7 with PK sampling on Day 7 to Day 8 in Period 3.",[13,14],"Drug: Midazolam","Drug: Camizestrant",{"label":16,"type":10,"description":17,"interventionNames":18},"Part B: Camizestrant + Carbamazepine","Participants will receive a single oral dose of camizestrant on Day 1 with PK sampling on Day 1 to Day 4 in Period 1, followed by low oral doses of carbamazepine BID on Day 4 to Day 6, mid oral doses of carbamazepine BID on Day 7 to Day 9 and high oral doses of carbamazepine BID on Day 10 to Day 15 with single oral dose of camizestrant on Day 13 with PK sampling on Day 16 in Period 2.",[14,19],"Drug: Carbamazepine",[21,27,33],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"DRUG","Midazolam","Midazolam will be administered orally.",[9],null,{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":31},"Camizestrant","Camizestrant will be administered orally.",[9,16],[32],"AZD9833",{"type":22,"name":34,"description":35,"armGroupLabels":36,"otherNames":26},"Carbamazepine","Carbamazepine will be administered orally.",[16],[38],{"facility":39,"status":26,"city":40,"state":26,"zip":41,"country":42,"countryCode":43,"cosmosGeoPoint":44,"geoPoint":49,"contacts":26},"Research Site","Harrow","HA1 3UJ","United Kingdom","UK",{"type":45,"coordinates":46},"Point",[47,48],-0.33208,51.57835,{"lat":48,"lon":47},{"type":51,"investigatorFullName":26,"investigatorTitle":26,"investigatorAffiliation":26,"oldNameTitle":26,"oldOrganization":26},"SPONSOR","100558134","phase-1-a-study-to-investigate-the-pharmacokinetics-of-midazolam-after-repeated-doses-of-camizestrant-azd9833-and-to-investigate-the-pharmacokinetics-of-camizestrant-when-administered-alone-and-in-combination-with-carbamazepine-in-healthy-post-menopausal-female-participants-100558134",false,"NCT06547164","A Study to Investigate the Pharmacokinetics of Midazolam After Repeated Doses of Camizestrant (AZD9833) and to Investigate the Pharmacokinetics of Camizestrant When Administered Alone and in Combination With Carbamazepine in Healthy Post-Menopausal Female Participants","A Phase I, Open-label, 2 Part, Fixed Sequence Study to Assess the Effect of Co-administration of Camizestrant (AZD9833) on the Pharmacokinetics of Midazolam Exposure (CYP3A4\u002F5 Substrate) and of Carbamazepine (CYP3A4\u002F5 Inducer) on Camizestrant Exposure in Healthy Post Menopausal Female Participants","Inclusion Criteria:\n\n* Healthy post-menopausal female participants with suitable veins for cannulation or repeated venipuncture.\n* Female participants must be post-menopausal as confirmed at the Screening Visit. Post-menopausal defined as amenorrhoea for at least 12 months or more without an alternative medical or surgical cause and confirmed by a follicle stimulating hormone (FSH) result of ≥ 30 Internation units\u002Fliter (IU\u002FL).\n* Have a body mass index between 19 and 35 kg\u002Fm2 inclusive and weigh at least 50 kg and no more than 100 kg inclusive.\n* Must agree to not use warfarin or phenytoin (and other coumarin-derived vitamin K antagonist anticoagulants) during the study, and for 2 weeks after last administration of study intervention.\n\nExclusion Criteria:\n\n* History of any clinically important disease or disorder.\n* History or presence of gastrointestinal, hepatic, or renal disease or any other condition known to interfere with absorption, distribution, metabolism, or excretion of drugs.\n* History of any clinically significant cardiovascular, chronic respiratory disease, haematological, neurological or psychiatric disorder.\n* History of acute pulmonary insufficiency marked neuromuscular respiratory weakness, obsessional states, phobic states, sleep apnoea syndrome, and unstable myasthenia gravis.\n* Any clinically important illness, medical\u002Fsurgical procedure, or trauma within 4 weeks of the first administration of study intervention.\n* Any clinically important abnormalities in clinical chemistry, haematology, or urinalysis results.\n* Any relevant history or known risk factors of QT prolongation or have received drugs known to prolong QT interval.\n* Any positive result for serum Hepatitis B surface antigen (HBsAg), Hepatitis C virus (HCV) antibody or human immunodeficiency virus (HIV).\n* History of or ongoing clinically important allergy\u002Fhypersensitivity, or history of hypersensitivity to drugs with a similar chemical structure or class to camizestrant or the formulation excipients.\n* Presence of any contraindication to the probe substrate carbamazepine.\n* Presence of any contraindication to midazolam.\n* Have any active indication for therapeutic anticoagulation, and\u002For having taken an anticoagulant within 14 days of Screening Visit.\n* Part B only: Participants identified to carry human leukocyte antigen (HLA)-A\\*3101 and\u002For HLA-B\\*1502 allele.\n* Participants with bone marrow suppression or a history of bone marrow suppression or aplastic anaemia.\n* History of or ongoing clinically significant visual disturbances including but not limited to visual hallucinations, migraine with visual symptoms, blurred vision, frequent floaters\u002Fflashes associated with other symptoms such as dizziness.\n* Participants with family history of glaucoma or closed angle glaucoma or participants who are currently on anticholinergic medications.\n* Participants with an anticipated need for major surgery and\u002For any surgery requiring general anaesthesia during the participation in the study.\n* Vulnerable participants, e.g., kept in detention, protected adults under guardianship, trusteeship, or committed to an institution by governmental or juridical order.",true,"FEMALE","50 Years","70 Years",{"count":64,"type":65},40,"ACTUAL","INTERVENTIONAL",[68],"PHASE1","This study will be conducted in order to determine the effect of repeated oral doses of camizestrant on the pharmacokinetics (PK) of midazolam and to determine the effect of repeated oral titrated doses of carbamazepine on the PK of camizestrant in healthy post-menopausal female participants.",[71],"Healthy Participants",[23,28,34,73,74,75,76],"Post-menopausal","Estrogen receptor (ER) positive disease","Breast Cancer","Cytochrome P450, family 3, subfamily A (CYP3A)","COMPLETED","2025-09-03",{"date":80,"type":65},"2025-09-04",{"date":82,"type":65},"2024-08-27",{"date":84,"type":65},"2025-08-20",{"name":5,"class":6},1]