Phase I Study of Olaparib Combined With Cisplatin-based Chemoradiotherapy to Treat Locally Advanced Head and Neck Cancer

Trial Title: Phase I Study of Olaparib Combined With Cisplatin-based Chemoradiotherapy to Treat Locally Advanced Head and Neck Cancer

NCT ID: NCT02308072

Condition: Head and Neck Cancer

Conditions: Official terms:
Head and Neck Neoplasms
Olaparib

Conditions: Keywords:
Squamous Cell Carcinoma
Head and Neck Cancer
Locally Advanced
Olaparib
Cisplatin
IMRT
Chemoradiotherapy
PARP
HNSCC

Study type: Interventional

Study phase: Phase 1

Overall status: Active, not recruiting

Study design:

Allocation: N/A

Intervention model: Single Group Assignment

Primary purpose: Treatment

Masking: None (Open Label)

Intervention:

Intervention type: Drug
Intervention name: Olaparib
Description: 50 mg, 100 mg, 150 mg or 200 mg taken twice daily (depending on dose under investigation at time of registration) on days 1-3, 1-4 or 1-5 (depending on allocation of treatment schedule) of each week of treatment.
Arm group label: Olaparib + Cisplatin + IMRT

Intervention type: Drug
Intervention name: Cisplatin
Description: 35 mg/m^2 IV on day 1 of each week of treatment during radiotherapy for a total of 7 weeks (total overall dose 245 mg/m^2)
Arm group label: Olaparib + Cisplatin + IMRT

Intervention type: Radiation
Intervention name: IMRT
Description: 2 Gy delivered in 35 fractions, on days 1-3, 1-4 or 1-5 each week for up to 7 weeks (total overall dose delivered 70 Gy)
Arm group label: Olaparib + Cisplatin + IMRT

Summary: The phase I trial aims to determine the recommended phase II dose (RP2D) and schedule of olaparib in combination with standard cisplatin-based chemoradiotherapy, in patients with high-risk locally advanced squamous cell carcinoma of the head and neck (HNSCC), by assessing the safety and tolerability of the treatment combination.

Detailed description: ORCA-2 is a phase I trial in patients with locally advanced, with or without metastatic nodal disease. Patients will receive olaparib (a PARP inhibitor) in combination with standard cisplatin-based chemotherapy and intensity modulated radiotherapy (IMRT). Olaparib, cisplatin and radiotherapy will be given in combination every week for a maximum of 7 weeks. Prior to starting combination treatment, olaparib will be started 7 days before the first week of combination treatment. Olaparib will be given twice daily on days 1-3 of each week of treatment (either alone during week 0 or in combination with chemotherapy and radiotherapy during weeks 1-7). Cisplatin will be started on day 1 of each week, and given once a week during radiotherapy treatment for a total of 7 weeks. Radiotherapy will be delivered on days 1-5 of each week using IMRT, for a total of 7 weeks. The phase I trial aims to determine the recommended phase II dose of olaparib (50mg, 100mg, 150mg or 200mg bd) - the dose of olaparib patients receive will depend on the dose under investigation at the time of patient registration. Dose escalation will be guided by the two-dimensional dose escalation design called Product of Independent Beta Probabilities escalation (PIPE). It will recommend the choice of dose/duration combination cohort of olaparib for subsequent patients by estimating the contour that divides dose/duration combination cohorts to be those above the target toxicity rate (equal to 33%) and those below. The recommended phase II cohort(s) are those that have been experimented on during the trial and are also closest to (but not above) the estimated contour calculated using all trial data.

Criteria for eligibility:
Criteria:
Inclusion Criteria: 1. Histologically confirmed high-risk locally advanced HNSCC, patients who would normally be offered cisplatin-based radical chemoradiotherapy 2. Estimated life expectancy of at least 16 weeks 3. WHO performance status 0 or 1 4. Aged ≥18 years 5. Adequate bone marrow function: absolute neutrophils grade 0 or 1, platelets grade 0 or 1, haemoglobin grade 0 or 1 6. Adequate renal function: Creatinine grade 0 or 1, Calculated GFR ≥60 mL/min (if calculated value is <60 mL/min then an isotope GFR assessment should be performed or an estimation from 24h urine collection) 7. Adequate liver function: Serum bilirubin grade 0 or 1, AST or ALT grade 0 or 1 8. Patients must be able to swallow olaparib tablets 9. Willing to use contraception for the duration of the trial treatment and for six months after completion of treatment 10. Able to give informed consent 11. Patients willing and able to comply with the protocol for the duration of the study Exclusion Criteria: 1. Head & neck cancers of the following types: Nasopharyngeal and paranasal sinus tumours, Oral squamous cell carcinomas (tumours of the oral cavity), Low risk Human Papilloma Virus positive oropharyngeal tumours (tonsillar and tongue base tumours) 2. Confirmed distant metastatic disease 3. Previous chemotherapy or radiotherapy for the treatment of HNSCC tumour 4. Previous therapy with a PARP inhibitor 5. Chemotherapy, immunotherapy or radiotherapy within 28 days prior to registration 6. Prior history of malignancy, except for basal cell or squamous cell carcinoma of the skin, carcinoma in situ of the cervix, breast or prostate. Patient must have been free of malignancy for a period of 3 years prior to first dose of trial drug 7. Women who are pregnant or lactating 8. Pre-existing gastrointestinal disorders that may interfere with the delivery or absorption of olaparib 9. Grade 3 or 4 peripheral neuropathy - If considered significant by the treating clinician a lower grade neuropathy may be considered as exclusion criterion 10. Significant hearing difficulties or tinnitus (deaf patients can be included) - Whilst not excluded, patients with mildly impaired hearing or tinnitus must be made aware of potential ototoxicity and may choose not to be included. If included, it is recommended that audiograms be carried out at baseline. 11. Any serious and/or unstable pre-existing medical, psychiatric or other condition that, in the treating clinician's judgment, could interfere with patient safety or obtaining informed consent 12. Known hepatitis B or C infection (testing for Hepatitis and HIV for the trial is not mandatory) 13. Immunocompromised patients (e.g. known HIV positive status) 14. Active uncontrolled infection 15. The current use of drugs which are known to inhibit or induce CYP3A4 16. Resting ECG with QTc > 470msec on 2 or more time points within a 24 hour period or family history of long QT syndrome. 17. Patients with myelodysplastic syndrome/acute myeloid leukaemia. 18. Patients with a known hypersensitivity to olaparib or any of the excipients of the product.

Gender: All

Minimum age: 18 Years

Maximum age: N/A

Healthy volunteers: No

Locations:

Facility:
Name: Guy's and St Thomas' NHS Foundation Trust

Address:
City: London
Country: United Kingdom

Facility:
Name: University College London Hospitals NHS Foundation Trust

Address:
City: London
Country: United Kingdom

Facility:
Name: Velindre Cancer Centre

Address:
City: Wales
Zip: CF14 2TL
Country: United Kingdom

Start date: September 2015

Completion date: February 2025

Lead sponsor:
Agency: University College, London
Agency class: Other

Collaborator:
Agency: Cancer Research UK
Agency class: Other

Collaborator:
Agency: AstraZeneca
Agency class: Industry

Source: University College, London

Record processing date: ClinicalTrials.gov processed this data on November 12, 2024

Source: ClinicalTrials.gov page: https://clinicaltrials.gov/ct2/show/NCT02308072