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Brief Title: Preoperative Radiotherapy And ASTX660 in Rectum Cancer
Official Title: An Open-Label Multicenter Phase 1b Study of Tolinapant (ASTX660) in Combination With Radiotherapy/Chemoradiotherapy (RT/CRT) in Preoperative Treatment of Patients With Rectum Cancer (PRAAR 1: Preoperative Radiotherapy And ASTX660 in Rectum Cancer)
Study ID: NCT05912075
Brief Summary: Compare two arms: * Chemotherapy followed by tolinapant (ASTX660) in combination with Long-Course Radio Chemotherapy (LCRT), and * Tolinapant (ASTX660) in combination with Short-Course Radiotherapy (SCRT) followed by chemotherapy For each patient, the treatment arm will be allocated on the following basis: patients will be allocated to the chemotherapy followed by LCRT arm unless they present at least one of the following criteria: contraindication to receive mFOLFIRINOX (including intolerance to irinotecan and UGT1A1\*28 polymorphism), age \> 75, general condition incompatible with the radiotherapy schedule of LCRT. In such case, patients will be allocated to the SCRT arm. Tolinapant (ASTX660) will be administered orally once a day for 7 consecutive days every other week during 10 weeks (One week On / One week Off during 10 weeks). Both treatment arms will have a dose escalation part to determine the MTD and/or RP2D, followed by an expansion part where up to 21 subjects will be dosed at the RP2D. Both arms will enroll simultaneously.
Detailed Description:
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
Centre Léon Bérard, Lyon, Rhöne, France
Gustave Roussy, Villejuif, Val De Marne, France