Clinical trial
An Open-label Phase I/IIa Study to Evaluate the Safety and Efficacy of CCS1477 as Monotherapy and in Combination, in Patients With Advanced Solid/Metastatic Tumours.
Name
CCS1477-01
Description
A Phase 1/2a study to assess the safety, tolerability, PK and biological activity of CCS1477 in patients with metastatic castration resistant prostate cancer, metastatic breast cancer, non-small cell lung cancer or advanced solid tumours.
Trial arms
Trial start
2018-07-23
Estimated PCD
2024-03-01
Trial end
2024-03-01
Status
Recruiting
Phase
Early phase I
Treatment
CCS1477
Capsules, oral
Arms:
CCS1477 Monotherapy - Solid tumours, CCS1477 and abiraterone acetate, combination dose finding and expansion - mCRPC, CCS1477 and atezolizumab, combination dose finding and expansion - non-small cell lung cancer, CCS1477 and darolutamide, combination dose finding and expansion - mCRPC, CCS1477 and enzalutamide, combination dose finding and expansion - mCRPC, CCS1477 and olaparib, combination dose finding and expansion - mCRPC and metastatic breast cancer, CCS1477 dose escalation - mCRPC, CCS1477 expansion phase - mCRPC
Abiraterone acetate
Abiraterone acetate 500mg tablets plus prednisone/prednisolone
Arms:
CCS1477 and abiraterone acetate, combination dose finding and expansion - mCRPC
Enzalutamide
Enzalutamide 40mg capsules/tablets
Arms:
CCS1477 and enzalutamide, combination dose finding and expansion - mCRPC
Darolutamide
300mg tablets
Arms:
CCS1477 and darolutamide, combination dose finding and expansion - mCRPC
Olaparib
150mg tablets
Arms:
CCS1477 and olaparib, combination dose finding and expansion - mCRPC and metastatic breast cancer
Atezolizumab
840mg/14ml concentrate for solution for infusion vials
Arms:
CCS1477 and atezolizumab, combination dose finding and expansion - non-small cell lung cancer
Size
350
Primary endpoint
Incidence of treatment-related adverse events
Up to 12 months
Laboratory assessments
Up to 12 months
Eligibility criteria
Inclusion Criteria:
* Provision of consent
* ECOG performance status 0-1
* Assessable disease (by CT, MRI, bone scan or X-ray)
* Adequate organ function
* Highly effective contraception measures for duration of study
Additional inclusion criteria for mCRPC patients only:
* Previously received abiraterone and/or enzalutamide (or equivalent anti-androgen), and docetaxel (unless ineligible or refused)
* Progressive disease documented by one or more of the following:
* Biochemical progression defined as at least 2 stepwise increases in a series of any 3 PSA values
* Progression as defined by RECIST v1.1 guideline for assessment of malignant soft tissue disease.
* Progression defined as two or more new metastatic bone lesions confirmed on bone scan from a previous assessment
* PSA at screening ≥2 μg/L
* Serum testosterone concentration ≤50 ng/dL
* Serum albumin \>2.5 g/dL
Additional inclusion criteria for patients in CCS1477 plus abiraterone combination arm:
* Patients must have previously progressed on abiraterone treatment
* Patients whose last dose of abiraterone is greater than 6 months prior to start of study treatment will receive a 4-week run-in treatment with abiraterone to confirm refractoriness to abiraterone treatment
Additional inclusion criteria for patients in CCS1477 plus enzalutamide combination arm:
* Patients must have previously progressed on enzalutamide treatment
* Patients whose last dose of enzalutamide is greater than 6 months prior to start of study treatment will receive a 4-week run-in treatment with enzalutamide to confirm refractoriness to enzalutamide treatment
Additional inclusion criteria for patients in mutation arm:
* Advanced solid tumour with identification of markers which may indicate potential for response to p300/CBP inhibition. Markers include loss of function mutations in CREBBP, EP300 or ARID1A, MYC gene amplifications or rearrangements and androgen receptor (AR) gene amplifications or over-expression.
Exclusion Criteria:
* Intervention with any chemotherapy, investigational agents or other anti-cancer drugs within 14 days or 5 half-lives of the first dose
* Radiotherapy with a wide field of radiation or to more than 30% of the bone marrow within 4 weeks of the first dose of study treatment
* Major surgical procedure or significant traumatic injury within 4 weeks of the first dose of study treatment
* Strong inhibitors of CYP3A4 or CYP3A4 substrates with a narrow therapeutic range taken within 2 weeks of the first dose of study treatment
* Strong inducers of CYP3A4 within 4 weeks of the first dose of study treatment
* Statins; patients should discontinue statins prior to starting study treatment
* Any unresolved reversible toxicities from prior therapy \>CTCAE grade 1 at the time of starting study treatment
* Any evidence of severe or uncontrolled systemic diseases
* Any known uncontrolled inter-current illness
* QTcF prolongation (\> 480 msec).
* Primary brain tumours or known or suspected brain metastases.
Additional exclusion criteria for patients in CCS1477 plus abiraterone combination arm:
* Clinically significant cardiac abnormalities
Additional exclusion criteria for patients in CCS1477 plus enzalutamide combination arm:
* History of seizures or other predisposing factors
* Use of substrates with a narrow therapeutic index metabolised by CYP2C9 or CYP2C19 within 2 weeks of the first dose of study treatment
* Clinically significant cardiac abnormalities
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE1', 'PHASE2'], 'designInfo': {'allocation': 'NON_RANDOMIZED', 'interventionModel': 'SEQUENTIAL', 'interventionModelDescription': 'The RP2D/MTD dose will be determined in Part A. Parts B-H will run in parallel after the completion of Part A.', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'NONE'}}, 'enrollmentInfo': {'count': 350, 'type': 'ESTIMATED'}}
Updated at
2024-01-19
1 organization
6 products
4 indications
Organization
CellCentricProduct
AbirateroneIndication
Breast CancerIndication
Lung CancerIndication
CancerProduct
OlaparibProduct
CCS1477Product
EnzalutamideProduct
DarolutamideProduct
Atezolizumab