An interventional study of Quad Shot Radiotherapy and Split Course Radiotherapy in Head and Neck Neoplasms and Squamous Cell Carcinoma of Head and Neck, sponsored by Instituto Nacional de Cancerologia, Columbia. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-02.
Sponsored by Instituto Nacional de Cancerologia, Columbia · Not applicable, Interventional, and Supportive care
Head and neck cancer in its advanced, incurable stage causes severe symptoms such as pain, trouble swallowing, and bleeding. Palliative radiation therapy is frequently used to relieve these symptoms and improve the patient's quality of life. Currently, a standard treatment approach is the "Split Course" regimen, which takes several weeks and can cause side effects that are difficult for patients to tolerate. This study aims to evaluate a shorter, alternative radiation treatment called "Quad Shot."
The hypothesis of this study is that the Quad Shot regimen will be as effective as the Split Course regimen in shrinking the tumor and controlling local symptoms, but will offer a better quality of life by reducing the overall treatment time and the severity of side effects. To test this, researchers will assign participants by chance to receive either the Quad Shot or the Split Course regimen. The research team will closely monitor tumor response, treatment side effects, and patients' quality of life for up to six months.
The optimal palliative radiotherapy regimen for incurable head and neck squamous cell carcinoma remains undefined. The standard approach at the Instituto Nacional de Cancerologia is the split-course regimen. Although effective for local symptom control, it requires a prolonged treatment course and is associated with significant acute toxicities that can compromise the comfort and quality of life of frail patients with a limited life expectancy.
The Quad Shot regimen, a hypofractionated approach initially evaluated in the RTOG 8502 trial for pelvic malignancies, offers a substantially shorter treatment duration. It has shown promising symptom control and lower toxicity profiles in retrospective and early phase studies for head and neck cancers. However, there is a lack of prospective, randomized data directly comparing the Quad Shot regimen to the split course approach.
This is a single-center, open-label, exploratory phase II randomized controlled trial designed to compare the efficacy, safety, and tolerability of the Quad Shot regimen versus the split course regimen. A total of 40 adult patients will be centrally randomized in a 1:1 ratio using permuted blocks of 4, stratified by tumor volume, to receive either the experimental hypofractionated regimen or the active comparator.
To ensure data quality, the study will utilize an institutional REDCap database for electronic case report forms (eCRF) with double data entry and monthly quality control checks. Quality assurance of the radiotherapy plans will be enforced through peer review and patient-specific pre-treatment dosimetry.
A formal interim analysis for safety and futility is planned once 50% of the recruitment target is reached. Final statistical analyses will follow the Intention-To-Treat (ITT) principle. Given the palliative nature of the cohort, competitive mortality will be factored into longitudinal statistical models (such as mixed-effects models) to adequately manage missing data without distorting efficacy and quality of life estimations.
2,018 studies on the registry are indexed under Squamous Cell Carcinoma of Head and Neck; 573 are open to participants now.
This study's planned enrollment of 40 is below the median of 48 across 1,653 interventional studies indexed under Squamous Cell Carcinoma of Head and Neck.
Browse Squamous Cell Carcinoma of Head and Neck studies →Instituto Nacional de Cancerologia, Columbia is the lead sponsor of 12 studies on the registry; 1 is open to participants now.
Compared within Squamous Cell Carcinoma of Head and Neck, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Head and Neck Neoplasms. The counts are of registry records indexed under each term, refreshed daily. How we classify →
The criteria were revised on the registry on Oct 2, 2026. See what changed
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
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.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
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.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.
The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.
The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.
“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.
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.
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.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Karnofsky performance status (KPS)
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
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.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Measurable disease
The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.
The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
RECIST
The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.
“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.
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.
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.
Patients assigned to this arm will receive the experimental Quad Shot hypofractionated palliative radiotherapy regimen. Treatment is delivered using Intensity-Modulated Radiation Therapy (IMRT) or Volumetric Modulated Arc Therapy (VMAT).
Radiation: Quad Shot Radiotherapy
Patients assigned to this arm will receive the standard Split Course fractionated palliative radiotherapy regimen. Treatment is delivered using Intensity-Modulated Radiation Therapy (IMRT) or Volumetric Modulated Arc Therapy (VMAT).
Radiation: Split Course Radiotherapy
A hypofractionated palliative radiotherapy regimen delivering a dose of 14.8 Gy divided into 4 fractions. Each fraction is 3.7 Gy, administered twice a day (with an interval of at least 6 hours between fractions) for 2 consecutive days. This cycle can be repeated up to three times with a resting interval of 3 to 4 weeks between each cycle, provided there is no limiting toxicity or disease progression.
A fractionated palliative radiotherapy regimen administered in two phases. The total dose is 60 Gy divided into 20 daily fractions of 3 Gy each. A planned resting interval of 3 to 4 weeks is introduced between the two treatment phases to maximize symptom control while maintaining acceptable toxicity.
Objective Local Tumor Response Rate Assessed by RECIST 1.1
The proportion of patients achieving an objective local tumor response, defined as either a Complete Response (CR) or a Partial Response (PR), evaluated using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
Time frame: Exactly 3 months (12 weeks) from the date of randomization
Change in Quality of Life Assessed by FACT-H&N
Mean change from baseline in patient-reported quality of life, measured by the Functional Assessment of Cancer Therapy-Head and Neck (FACT-H\&N) questionnaire. The FACT-H\&N assesses physical, social/family, emotional, and functional well-being, along with head and neck specific concerns. The total score ranges from 0 to 156, where higher scores indicate a better quality of life Assessment of Cancer Therapy-Head and Neck (FACT-H\&N) questionnaire. The FACT-H\&N assesses physical, social/family, emotional, and functional well-being, along with head and neck specific concerns. Higher scores indicate a better quality of life.
Time frame: Baseline, at the end of radiotherapy treatment, 3 months, and 6 months from the date of randomization
Incidence of Acute Treatment-Related Toxicity
The proportion of patients experiencing acute adverse events (Grade 2 or higher) associated with the radiotherapy regimens. Toxicities will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
Time frame: From the start of treatment up to 3 months from the date of randomization
Incidence of Late Treatment-Related Toxicity
The proportion of patients experiencing new or persistent late adverse events (Grade 2 or higher) associated with the radiotherapy regimens. Toxicities will be graded according to the CTCAE version 5.0.
Time frame: At 3 months and 6 months from the date of randomization
Treatment Feasibility and Tolerance
The proportion of patients who successfully complete the prescribed radiotherapy regimen, defined as receiving 90% or more of the planned radiation dose/fractions without treatment abandonment, major modifications, or unscheduled interruptions longer than 7 consecutive days due to toxicity or clinical deterioration.
Time frame: Through the completion of the prescribed radiotherapy regimen, an average of 4 to 8 weeks
Overall Survival (OS)
Overall survival is defined as the time from the date of randomization to the date of death from any cause. Patients alive at the end of their follow-up period will be censored.
Time frame: Up to 6 months from the date of randomization
No study locations are listed for this record.
Plan to share: No — Individual participant data (IPD) will not be shared publicly due to strict institutional confidentiality policies and Colombian national data protection laws (Ley 1581 of 2012). Data access is strictly restricted to the authorized research team, quality monitors, and the institutional ethics committee to protect patient privacy. Only aggregated and completely anonymized summary data will be made available through scientific publications and conference presentations.
Start is estimated for Jan 2027; primary completion for Oct 2028, 21 months later.
Of 115 non-industry interventional studies with no phase under Squamous Cell Carcinoma of Head and Neck, half reached primary completion within 53 months of starting (the median), counting those still running; a quarter within 34 and three quarters within 90. This study's planned 21 months is below that.
Counting every sponsor, half of 126 studies reached it within 59 months; a quarter within 34 and three quarters within 90.
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 ↗
This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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Instituto Nacional de Cancerologia, Columbia