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Spots Global Cancer Trial Database for Study of CYH33 in Combination With Olaparib an Oral PARP Inhibitor in Patients With Advanced Solid Tumors.

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Trial Identification

Brief Title: Study of CYH33 in Combination With Olaparib an Oral PARP Inhibitor in Patients With Advanced Solid Tumors.

Official Title: Open Label, Phase Ib Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Clinical Activity of CYH33, an Oral PI3K Inhibitor in Combination With Olaparib, an Oral PARP Inhibitor in Patients With Advanced Solid Tumors.

Study ID: NCT04586335

Interventions

CYH33

Study Description

Brief Summary: The purpose of this study is to assess the safety, tolerability and preliminary efficacy of CYH33 in combination with olaprib in patients with DDR gene mutations and/or PIK3CA mutations, in patients who have progressed on prior PARP inhibitor, and in patients with recurrent high grade serous ovarian, fallopian tube, or primary peritoneal cancer who are platinum resistant or refractory. The study will assess if this combination will optimize anti-tumor activity, block tumor growth and overcome the resistance to PARP inhibitor treatment. The study consists 2 parts. In Part 1 dose escalation, the objective is to determine the maximum toleration dose (MTD) of the combination. The final recommended phase 2 dose (RP2D) of CYH33 in combination with olaparib will be based on the totality of an overall assessment of available safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and preliminary efficacy which could be the MTD or a dose level lower in specific cohorts of patients. In Part 2 dose expansion, the main objective is to evaluate the efficacy at RP2D.

Detailed Description: DNA damage repair (DDR) pathways can modulate cancer risk, progression and therapeutic responses. Germline mutations in genes encoding key players in the DNA-damage response (DDR), including BRCA1, BRCA2,BLM, FANCA, TP53, RAD51C, and MSH2, result in cancer susceptibility syndromes, in part because failure to adequately protect the genome against endogenous and exogenous sources of DNA damage results in the accumulation of oncogenic mutations. The mechanistic rationale for the combination of PI3K and PARP inhibitors is that PI3K inhibition leads to a downregulation of BRCA1/2 proteins, which increase the degree of HRR deficiency CYH33 is a novel, highly potent and selective inhibitor of phosphatidylinositol 3-kinase αsignificantly inhibited the activities of wild-type and mutant PI3Kα kinase as well as the specific mutant of E542K, 1047R or E545K, On July13, 2018, a Phase I first-in-human dose escalation and expansion single-agent study of CYH33 (CYH33-101) started in China (ClinicalTrials.gov identifier: NCT03544905) identify the MTD of CYH33 single agent was 40 mg. The most common treatment related adverse events (\>5%) of Grade 3 was hyperglycemia. No treatment-related Grade 4 adverse event or death was reported in the ongoing trial by the cut-off date. In this combination study will assess if this combination will optimize anti-tumor activity, block tumor growth and overcome the resistance to PARP inhibitor treatment. The study consists 2 parts. In Part 1 dose escalation, the objective is to determine the maximum toleration dose (MTD) of the combination. The final recommended phase 2 dose (RP2D) of CYH33 in combination with olaparib will be based on the totality of an overall assessment of available safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and preliminary efficacy which could be the MTD or a dose level lower in specific cohorts of patients. In Part 2 dose expansion, the main objective is to evaluate the efficacy at RP2D.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Yale Cancer Center, New Haven, Connecticut, United States

UT Southwestern: Simmons Cancer Center, Dallas, Texas, United States

MD Anderson Cancer Center, Houston, Texas, United States

Scientia Cancer Centre, Sydney, New South Wales, Australia

Integrated Oncology Network PTY LTD, Brisbane, Queensland, Australia

Monash Cancer Centre, Melbourne, Victoria, Australia

Fudan University - Pudong Medical Center, Shanghai, Shanghai, China

Contact Details

Name: Fugen Li, PhD

Affiliation: Haihe Biopharma

Role: STUDY_DIRECTOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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