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A study evaluating single-agent inavolisib and inavolisib plus atezolizumab in PIK3CA-mutated cancers

Phase 1
Conditions
PIK3CA-mutated solid cancers including previously treated recurrent or metastatic HNSCC
Cancer
Registration Number
ISRCTN11595117
Lead Sponsor
F. Hoffmann-La Roche Ltd
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Ongoing
Sex
All
Target Recruitment
40
Inclusion Criteria

1. Participants must be at least 18 years of age
2. Histologically or cytologically confirmed recurrent and/or metastatic HNSCC that has been previously treated with systemic therapy in the recurrent and/or metastatic setting
3. Documented positive or negative human papillomavirus (HPV) status as determined locally by p16 immunohistochemistry (IHC; preferred), in situ hybridization, and/or by polymerase chain reaction-based assay. Participants with either HPV-positive or HPV-negative status are eligible (unknown HPV status is not eligible)
4. Eligible participants must not be suitable for treatment with surgery and/or radiation
5. Confirmation of biomarker eligibility: Valid results from either central testing of blood or local testing of blood or tumour tissue documenting PIK3CA-mutated tumour status
6. Consent to provide fresh (preferred) or archival tumour tissue specimen
7. Negative hepatitis B surface antigen (HBsAg) and total hepatitis B core antibody (HBcAb) test or positive total HBcAb test followed by a negative hepatitis B virus (HBV) DNA at screening
8. Negative hepatitis C virus (HCV) antibody test at screening, or positive HCV antibody test followed by a negative HCV RNA test at screening
9. Measurable disease per RECIST v1.1
10. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
11. Life expectancy of =12 weeks

Exclusion Criteria

1. Prior treatment with any phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), or mammalian target of rapamycin (mTOR) inhibitor, or any agent whose mechanism of action is to inhibit the PI3K/AKT/mTOR pathway
2. Appropriate for treatment with surgery and/or radiation at the time of entry into the study, as per national or local treatment guidelines
3. Type II diabetes requiring ongoing systemic treatment at the time of study entry; or any history of Type I diabetes
4. Malabsorption syndrome or other condition that would interfere with enteral absorption
5. Known and untreated, or active central nervous system (CNS) metastases (progressing or requiring anticonvulsants or corticosteroids for symptomatic control). Participants with a history of treated CNS metastases are eligible provided they meet specified criteria
6. Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures twice per week or more frequently
7. Serious infection requiring IV antibiotics within 7 days prior to Day 1 of Cycle 1
8. Treatment with a live, attenuated vaccine within 4 weeks prior to initiation of study treatment, or anticipation of the need for such a vaccine during study treatment
9. Any concurrent ocular or intraocular condition (e.g., cataract or diabetic retinopathy) that, in the opinion of the investigator, would require medical or surgical intervention during the study period to prevent or treat vision loss that might result from that condition
10. Active inflammatory (e.g., uveitis or vitritis) or infectious (e.g., conjunctivitis, keratitis, scleritis, or endophthalmitis) conditions in either eye or history of idiopathic or autoimmune-associated uveitis in either eye
11. Requirement for daily supplemental oxygen
12. Symptomatic active lung disease, including pneumonitis
13. History of or active inflammatory bowel disease (e.g., Crohn’s disease or ulcerative colitis) or any active bowel inflammation (including diverticulitis)
14. Known Human Immunodeficiency Virus (HIV) infection
15. Current severe, uncontrolled systemic disease (e.g., clinically significant cardiovascular, pulmonary, metabolic, or infectious disease) or any other diseases, active or uncontrolled pulmonary dysfunction, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug, that may affect the interpretation of the results, or that renders the participant at high risk from treatment complications
16. Chemotherapy, radiotherapy, or any other anti-cancer therapy within 2 weeks before enrolment
17. Investigational drug(s) within 4 weeks before enrolment
18. Unresolved toxicity from prior therapy, except for hot flashes, alopecia, and Grade = 2 peripheral neuropathy
19. History of other malignancy within 5 years prior to screening, with specified exceptions
20. History of or active clinically significant cardiovascular dysfunction
21. Any serious medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the participant's safe participation in and completion of the study)
22. Chronic corticosteroid therapy of =10 mg of prednisone per day or an equivalent dose of other anti-inflammatory corticosteroids or immunosuppressants for a chronic disease
23. Allergy or hypersensitivity to components of the inavolisib formulation
24. Treatment with strong CYP3

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod
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