E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Locally advanced head and neck squamous cell carcinoma (LA HNSCC) |
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E.1.1.1 | Medical condition in easily understood language |
Locally advanced head and neck squamous cell carcinoma |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10067821 |
E.1.2 | Term | Head and neck cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To compare Event-free survival (EFS) in subjects treated with with pembrolizumab in combination with CRT and subjects treated with placebo in combination with CRT. |
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E.2.2 | Secondary objectives of the trial |
-To compare Overall Survival (OS) in subjects treated with pembrolizumab in combination with CRT and subjects treated with placebo in combination with CRT.
-To evaluate and compare the safety and tolerability profile of pembrolizumab in combination with CRT and subjects treated with placebo in combination with CRT.
- To compare mean change from baseline in Global health status/quality of life (QoL) and physical functioning using the EORTC QLQ-C30, and swallowing, speech and pain symptoms using the EORTC QLQ-H&N35 in subjects treated with pembrolizumab in combination with CRT and subjects treated with placebo in combination with CRT.
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Merck will conduct Future Biomedical Research on DNA (blood) specimens collected during this clinical trial. Such research is for biomarker testing to address emergent questions not described elsewhere in the protocol (as part of the main trial) and will only be conducted on specimens from appropriately consented subjects. The objective of collecting specimens for Future Biomedical Research is to explore and identify biomarkers that inform the scientific understanding of diseases and/or their therapeutic treatments. The overarching goal is to use such information to develop safer, more effective drugs, and/or to ensure that subjects receive the correct dose of the correct drug at the correct time. |
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E.3 | Principal inclusion criteria |
1. Have a pathologically proven new diagnosis of squamous cell carcinoma of:
a. Oropharyngeal p16 positive
i. T4 (N0-N3), M0 ; or
ii. N3 (T1-T4), M0
OR
b. Oropharyngeal p16 negative
i. any T3-4 (N0-N3), M0 ; or
ii. any N2a-3 (T1-T4), M0
OR
c. Larynx/hypopharynx/oral cavity (independent of p16)
i. any T3-4 (N0-N3), M0 ; or
ii. any N2a-3 (T1-T4), M0
2. Be willing and able to provide written informed consent for the trial. The subject may also provide consent for Future Biomedical Research. However, the subject may participate in the main trial without participating in Future Biomedical Research.
3. Have results from (local) testing of HPV status for oropharyngeal cancer defined as p16 IHC testing using CINtec® p16 Histology assay and a 70% cutoff point. If HPV status was previously tested using this method, no additional testing is required.
4. Have provided tissue for PD-L1 biomarker analysis from a core or excisional biopsy (fine needle aspirate [FNA] is not adequate). If an excisional or incisional biopsy has been performed, subjects remain eligible for the study provided the residual disease meets the staging criteria required for the trial (e.g., excisional biopsy of a lymph node with residual T4 primary). Prior surgical debulking, including tonsillectomy, for the head and neck cancer under study is not allowed.
5. Be ≥18 years of age on day of signing informed consent.
6. Have evaluable tumor burden (measurable and/or non-measurable tumor lesions) assessed by CT scan or MRI, based on RECIST version 1.1.
7. Be eligible for definitive CRT and not considered for primary surgery based on investigator decision.
8. Have an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1 performed within 10 days of treatment initiation.
9. Female subjects of childbearing potential must have a negative urine or serum pregnancy test within 72 hours prior to receiving the first dose of trial treatment. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
10. Female subjects of childbearing potential must be willing to use an adequate method of contraception as outlined in the protocol, for the course of the study through 180 days after the last dose of study medication.
11. Male subjects of childbearing potential must agree to use an adequate method of contraception as outlined in the protocol, starting with the first dose of study therapy through 180 days after the last dose of study therapy.
12. Demonstrate adequate organ function as defined in the protocol. All screening labs should be performed within 10 days prior to treatment initiation and assessed prior to randomizing the subject.
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E.4 | Principal exclusion criteria |
1. Has current participation or treatment with an investigational agent or use of an investigational device within 4 weeks of the first dose of trial treatment.
2. Has received prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2 agent or with an agent directed to another co-inhibitory T-cell receptor (e.g., CTLA-4, OX-40, CD137 or other immune checkpoint inhibitors) or has previously participated in Merck MK-3475 clinical trials.
3. Has received a live vaccine within 30 days prior to the first dose of study treatment.
4. Has cancer outside of the oropharynx, larynx, and hypopharynx or oral cavity, such as nasopharyngeal, sinus, other para-nasal, or other unknown primary HNC.
5. Has had prior systemic therapy, targeted therapy, radiotherapy treatment or radical surgery for the head and neck cancer under study.
6. Has Grade ≥2 audiometric hearing loss (25 decibels in 2 consecutive wave ranges).
7. Has Grade ≥2 neuropathy.
8. Has Grade 3-4 bleeding due to the underlying malignancy.
9. If subject has received major surgery, and the subject has not recovered adequately from the toxicity and/or complications from the intervention prior to starting trial treatment.
10. Has known active Hepatitis B (e.g., HBsAg reactive) or C (e.g., HCV RNA [qualitative] is detected).
11. Has known history of Human Immunodeficiency Virus (HIV) (HIV-1/2 antibodies).
12. Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment. Corticosteroid use as pre-medication for allergic reactions (e.g., IV contrast) or as a prophylactic management of adverse events related to the chemotherapies specified in the protocol is allowed. A short course of steroids may be used as concomitant medication for either treatment of an adverse event or medical condition with Sponsor approval.
13. Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis.
14. Has an active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
15. Has history of a diagnosed and/or treated hematologic or primary solid tumor malignancy, unless in remission for at least 5 years prior to randomization. A T1-2 prostatic cancer Gleason score ≤6, superficial bladder cancer, non melanomatous skin cancer or carcinoma in situ of the cervix is eligible. Other exceptions may be considered with Sponsor consultation.
16. Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis.
17. Has had previous allogeneic tissue/solid organ transplant.
18. Has active infection requiring systemic therapy.
19. Has a history of severe hypersensitivity reaction (e.g., generalized rash/erythema, hypotension, bronchospasm, angioedema or anaphylaxis) to pembrolizumab, Cisplatin or radiotherapy or their analogs.
20. Is a female subject who is pregnant or breast feeding or expecting to conceive or a male expecting to father children within the projected treatment phase of the trial, starting with the screening visit through 180 days after the last dose of trial treatment.
21. Have severe comorbidities that, in the opinion of the Investigator, might hamper participation in the study and/or the treatment administration.
22. Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject’s participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
23. Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.
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E.5 End points |
E.5.1 | Primary end point(s) |
Event-free survival (EFS) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
• The interim efficacy analyses will be performed when 75% of the final required EFS events (or approximately 214 events) have accrued, which is expected approximately 33 months after study start
• The final analysis will be performed when 286 EFS events have accrued, which is estimated to be 48 months after study start.
• The interim safety analysis will be performed when the first 30 subjects have completed CRT. The eDMC will also review safety data periodically in the study.
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E.5.2 | Secondary end point(s) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
The OS in all subjects will be evaluated at the interim or final analysis if the statistical criterion for success is met for the primary EFS hypothesis in all subjects. |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | Yes |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 73 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Australia |
Austria |
Belgium |
Brazil |
Canada |
Colombia |
Czech Republic |
France |
Germany |
Ireland |
Israel |
Italy |
Japan |
Korea, Republic of |
Netherlands |
New Zealand |
Poland |
Spain |
Taiwan |
Turkey |
United Kingdom |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 6 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |