A Phase 2 interventional study of Carboplatin and Cisplatin in Recurrent Head and Neck Squamous Cell Carcinoma, Recurrent Hypopharyngeal Squamous Cell Carcinoma and Recurrent Laryngeal Squamous Cell Carcinoma, sponsored by National Cancer Institute (NCI). Recruiting at 178 sites in United States. Open to participants aged 18 Years to 79 Years. Per ClinicalTrials.gov, last updated 2026-11-12.
Sponsored by National Cancer Institute (NCI) · Phase 2, Interventional, and Treatment
Among 62 studies testing pembrolizumab in Squamous Cell Carcinoma of Head and Neck — 17 open to participants now, 31 under way, 2 of them phase 3. pembrolizumab · Squamous Cell Carcinoma of Head and Neck.
Among the 62 studies testing pembrolizumab in Squamous Cell Carcinoma of Head and Neck, this one is the 7th largest by planned enrollment, is one of 8 that started in 2021, is one of 43 in phase 2, reaches primary completion later than 28 of the 30 other live ones, and was the 36th registered.
2,018 studies on the registry are indexed under Squamous Cell Carcinoma of Head and Neck; 573 are open to participants now.
Browse Squamous Cell Carcinoma of Head and Neck studies →17 of the 62 studies testing pembrolizumab in Squamous Cell Carcinoma of Head and Neck are open now, in 5 countries. Recruiting first, the newest first:
Brown University · Sites in United States
Ages 65+
Emory University · Sites in United States
Ages 18+
National University Hospital, Singapore · Sites in Singapore
Ages 21–99
University of Leipzig · Sites in Germany
Ages 18–70
University of California, Davis · Sites in United States
Ages 18+
By country, each count listing its studies:
pembrolizumab: first FDA approval 2014 (KEYTRUDA), first EMA approval 2015. What it is approved for, and how studies give it, is on its page →
Of the 434 Squamous Cell Carcinoma of Head and Neck studies recruiting now, 310 (71%) set no upper age limit and 87 (20%) stop at 75 or younger; 5 take children under 18; 13 take healthy volunteers.
This study: 18 Years to 79 Years · all sexes · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
On this site’s reading of the record, pembrolizumab is the treatment under test here. Read study by study →
62 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 13 · Phase 2 46 · Phase 3 5 · Phase 4 1
First in 2014; this study’s year is marked. 8 started in 2021.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 188 is above the median of 48 across 1,653 interventional studies indexed under Squamous Cell Carcinoma of Head and Neck.
Median enrollment 52 across the 62 interventional studies. Of the 28 that completed or were terminated, 18 (64%) have results posted.
This tab as a report to print or save as PDF → With an account.
11 of 62 have an industry lead sponsor. The 10 most frequent:
National Cancer Institute (NCI) is the lead sponsor of 3,556 studies on the registry; 336 are open to participants now.
Of its 412 completed or terminated interventional studies of FDA-regulated products, 374 (91%) have results posted.
76 studies in Squamous Cell Carcinoma of Head and Neck by National Cancer Institute (NCI): 8 open now, 17 under way, 4 of them phase 3. Of 54 finished, 18 (33%) have results posted.
Among the 76 studies in Squamous Cell Carcinoma of Head and Neck by National Cancer Institute (NCI), this one is the 6th largest by planned enrollment of the 70 interventional ones that give a count, is the only one that started in 2021, is one of 34 in phase 2, reaches primary completion later than 14 of the 16 other live ones, and was the 65th registered.
National Cancer Institute (NCI)’s Squamous Cell Carcinoma of Head and Neck studies by the year they started, since 1995.
9 of the studies testing pembrolizumab in Squamous Cell Carcinoma of Head and Neck that are under way reach primary completion within a year, 2 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT06998069Phase 3Brown UniversityHead and Neck Cancer Study Project in the Geriatric Population | 2026-12-01 |
| NCT06102395Phase 3Beijing Tongren HospitalEvaluating the Efficacy and Safety of Pembrolizumab Plus Standard Chemotherapy in the Neoadjuvant Treatment of Local Advanced (LA) HNSCC | 2027-04-30 |
| NCT06580054University of Michigan Rogel Cancer CenterPembrolizumab for the Treatment of Locally Advanced and/or Recurrent Orbital or Periocular Cutaneous Squamous Cell Carcinoma | 2026-12 |
| NCT06211335University of California, DavisLosartan, Pembrolizumab and Stereotactic Body Radiation Therapy for the Treatment of Patients With Locally Recurrent, Refractory or Oligometastatic Head and Neck Squamous Cell Carcinoma | 2026-12 |
| NCT04754321Ohio State University Comprehensive Cancer CenterCombining Immunotherapy Salvage Surgery & IORT Tx Persistent/Recurrent Head & Neck Cancer | 2026-12-31 |
Add all 9 to your calendar (.ics) → With an account.
Among the 62 studies testing pembrolizumab in Squamous Cell Carcinoma of Head and Neck, from their registry updates:
Among National Cancer Institute (NCI)’s 76 in Squamous Cell Carcinoma of Head and Neck:
This tab as a report to print or save as PDF → With an account.
This phase II trial studies the effect of pembrolizumab alone compared to the usual approach (chemotherapy [cisplatin and carboplatin] plus radiation therapy) after surgery in treating patients with head and neck squamous cell carcinoma that has come back (recurrent) or patients with a second head and neck cancer that is not from metastasis (primary). Radiation therapy uses high energy radiation or protons to kill tumor cells and shrink tumors. Cisplatin is in a class of medications known as platinum-containing compounds. It works by killing, stopping or slowing the growth of cancer cells. Carboplatin is also in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of cancer cells. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab alone after surgery may work better than the usual approach in shrinking recurrent or primary head and neck squamous cell carcinoma.
PRIMARY OBJECTIVE:
I. To evaluate overall survival (OS) of adjuvant pembrolizumab for 12 months compared to adjuvant reirradiation plus concurrent platinum chemotherapy in high risk head and neck squamous cell carcinoma (HNSCC) patients.
SECONDARY OBJECTIVES:
I. To evaluate the following endpoints in both arms: disease free survival (DFS), locoregional control, rates of distant metastasis, toxicity.
II. To evaluate whether high PD-L1 expression (defined as Combined Positive Score [CPS] >= 20) is predictive of increased efficacy in the experimental group compared to control.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM B: Patients receive cisplatin or carboplatin intravenously (IV) on day 1. Treatment repeats every 7 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo intensity-modulated radiation therapy (IMRT) or proton beam radiation therapy (PBRT) once daily (QD) for a total of 30 fractions in the absence of disease progression or unacceptable toxicity.
ARM C: Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 6 weeks for 9 cycles in the absence of disease progression or unacceptable toxicity.
Patients in all arms undergo computed tomography (CT) or magnetic resonance imaging (MRI) throughout the trial.
After completion of study treatment, patients are followed up at 30 days, and then every 6 months for up to 5 years from the date of registration.
Inclusion Criteria:
Patients must have high risk disease defined as:
Positive margins and/or extra nodal extension (ENE)
Patient must not have a known history of (defined as hepatitis B surface antigen [HBsAg] reactive) or known active virus (defined as HCV ribonucleic acid [RNA] [qualitative] is detected) infection
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.
PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.
Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
PD-1, PD-L1 and checkpoint inhibitors
PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.
PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Adjuvant and neoadjuvant
Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Live vaccines
Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients receive cisplatin or carboplatin IV on day 1. Treatment repeats every 7 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo IMRT or PBRT QD for a total of 30 fractions in the absence of disease progression or unacceptable toxicity. Patients also undergo CT or MRI throughout the trial.
Drug: Carboplatin · Drug: Cisplatin · Procedure: Computed Tomography · Radiation: Intensity-Modulated Radiation Therapy · Procedure: Magnetic Resonance Imaging · Radiation: Proton Beam Radiation Therapy
Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 6 weeks for 9 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo CT or MRI throughout the trial.
Procedure: Computed Tomography · Procedure: Magnetic Resonance Imaging · Biological: Pembrolizumab
Given IV
Also known as: Blastocarb, Carboplat, Carboplatin Hexal, Carboplatino, Carboplatinum, Carbosin, Carbosol, Carbotec, CBDCA, Displata, Ercar, JM-8, JM8, Nealorin, Novoplatinum, Paraplatin, Paraplatin AQ, Paraplatine, Platinwas, Ribocarbo
Given IV
Also known as: Abiplatin, Blastolem, Briplatin, CDDP, Cis-diammine-dichloroplatinum, Cis-diamminedichloridoplatinum, Cis-diamminedichloro Platinum (II), Cis-diamminedichloroplatinum, Cis-dichloroammine Platinum (II), Cis-platinous Diamine Dichloride, Cis-platinum, Cis-platinum II, Cis-platinum II Diamine Dichloride, Cismaplat, Cisplatina, Cisplatinum, Cisplatyl, Citoplatino, Citosin, Cysplatyna, DDP, Lederplatin, Metaplatin, Neoplatin, Peyrone's Chloride, Peyrone's Salt, Placis, Plastistil, Platamine, Platiblastin, Platiblastin-S, Platinex, Platinol, Platinol- AQ, Platinol-AQ, Platinol-AQ VHA Plus, Platinoxan, Platinum, Platinum Diamminodichloride, Platiran, Platistin, Platosin
Undergo CT
Also known as: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography, Computerized axial tomography (procedure), Computerized Tomography, Computerized Tomography (CT) scan, CT, CT Scan, Diagnostic CAT Scan, Diagnostic CAT Scan Service Type, tomography
Undergo IMRT
Also known as: IMRT, Intensity modulated radiation therapy (procedure), Intensity Modulated RT, Intensity-Modulated Radiotherapy, Radiation, Intensity-Modulated Radiotherapy
Undergo MRI
Also known as: Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR, MR Imaging, MRI, MRI Scan, MRIs, NMR Imaging, NMRI, Nuclear Magnetic Resonance Imaging, sMRI, Structural MRI
Given IV
Also known as: BCD-201, GME 751, GME751, Keytruda, Lambrolizumab, MK 3475, MK-3475, MK3475, Pembrolizumab Biosimilar BCD-201, Pembrolizumab Biosimilar GME751, Pembrolizumab Biosimilar QL2107, Pembrolizumab Biosimilar RPH-075, Pembrolizumab Biosimilar SB27, QL2107, RPH 075, RPH-075, RPH075, SB 27, SB-27, SB27, SCH 900475, SCH-900475, SCH900475
Undergo PBRT
Also known as: External beam radiation therapy protons (procedure), External Beam Radiotherapy (protons), PBRT, Proton, Proton EBRT, Proton External Beam Radiotherapy, Proton Radiation Therapy, PROTON Therapy, Radiation, Proton Beam
Overall survival (OS)
Kaplan-Meier estimates will be used to estimate the OS distributions. A log-rank test with one-sided 10% type I error will be used for the comparison.
Time frame: From randomization to date of death from any cause, measured at 2 years
Incidence of adverse events
Assessed using Common Terminology Criteria for Adverse Events. An 80% confidence interval around the hazard ratio of the two experimental arms will be calculated. Toxicity will be compared between the two treatment arms. Toxicity will be examined by arm and compared using the Fisher's exact test.
Time frame: Up to 5 years from date of registration
Disease free survival
Time frame: From the date of randomization to the date of recurrence, second primary tumor from the head and neck region, or death, assessed up to 5 years from date of registration
PD-L1 expression
Defined as Combined Positive Score \>= 20 as a predictive marker of efficacy.
Time frame: Up to 5 years from date of registration
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Plan to share: Yes — NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.
Data sharing details ↗ · grants.nih.gov
No publications or documents are linked to this record.
Started Apr 2021 (actual). Primary completion is estimated for Jun 2029, 98 months after the start.
Of 298 non-industry phase 2 interventional studies under Squamous Cell Carcinoma of Head and Neck, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 37 and three quarters within 85. This study's planned 98 months is above that.
Counting every sponsor, half of 366 studies reached it within 53 months; a quarter within 35 and three quarters within 82.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
No contact was published for this record. The registry link below has the sponsor’s details.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Studies of the drug tested here: Pembrolizumab
Squamous Cell Carcinoma of Head and Neck →
National Cancer Institute (NCI) →