Oropharyngeal CancerNCT03729518
TORS De-Intensification Protocol Version 2.0: Dose and Volume Reduction in the Neck
A study testing Radiation Therapy (IMRT or IMPT) in people with Oropharyngeal Cancer and Squamous Cell Carcinoma, run by Abramson Cancer Center at Penn Medicine at 1 site in United States.
Trial summary
This is a single-arm Phase II study of adjuvant radiation for locally advanced p16+ oropharyngeal squamous cell carcinoma. The main purpose of this research is to determine the likelihood of cancer growing back in the throat or in the neck two years after completion of radiation if lower doses of radiation are used to… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Oropharyngeal Cancer, Squamous Cell Carcinoma, Human Papilloma Virus
- What is being tested?
- Radiation Therapy (IMRT or IMPT)
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 150 participants
- Where
- 1 siteUnited States
- Study dates
- 11 Oct 2018to 15 Jul 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients >= 18 years old
- Histologically confirmed diagnosis of squamous cell carcinoma of the oropharynx, p16-positive on immunohistochemistry
- Pathologic T0 (unknown primary), T1, T2, or T3 disease (per AJCC 7th Ed)
- Pathologic N0, N1, N2a, or N2b disease (per AJCC 7th Ed), with < 5 positive lymph nodes
- ECOG Performance Status 0-1
Who cannot join
- Prior radiation therapy to the head and neck
- Presence of T4 disease
- Presence of N2c or N3 neck disease (per AJCC 7th Ed)
- >= 5 lymph nodes
- Presence of distant metastatic disease
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Pennsylvania
Philadelphia, Pennsylvania, 19104
About this study
Official title: A Phase II Study of Volume and Dose De-Intensification Following Transoral Robotic Surgery (TORS) and Neck Dissection for p16+ Oropharyngeal Squamous Cell Carcinoma
This is a single-arm Phase II study of adjuvant radiation for locally advanced p16+ oropharyngeal squamous cell carcinoma. The main purpose of this research is to determine the likelihood of cancer growing back in the throat or in the neck two years after completion of radiation if lower doses of radiation are used to a smaller area of the head and neck region than is currently used in standard of care.
Read the detailed description
This is a single arm Phase II study of adjuvant radiation for locally-advanced p16+ oropharyngeal squamous cell carcinoma. Patients with pT0-T3, N0-N2b, M0 disease (per AJCC 7th ed) with <5 positive lymph nodes, will be eligible. Patients will have undergone TORS primary site resection and ipsilateral neck dissection. Patients will undergo radiation dose reduction and target volume reduction.
- Being tested
- Radiation Therapy (IMRT or IMPT)
- Medical subject headings
- Oropharyngeal Neoplasms, Carcinoma, Squamous Cell
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Radiation Therapy (IMRT or IMPT)Radiation
- Treatment of the primary tumor bed will be omitted in appropriate patients, as per the initial TORS de-intensification protocol. In those patients requiring treatment of the primary site, reduced dose (50 Gy) will be delivered.
- Receipt of concurrent chemotherapy per current guidelines. Chemotherapy may be omitted in patients with focal or microscopic ENE (defined as ≤ 1 mm ENE), at the discretion of the treating Medical Oncologist.
- Blood samples will be obtained at time of enrollment, and at two time points during RT, to quantify circulating HPV DNA and perform immune profiling.
| Study group | Role | What they receive |
|---|---|---|
| Arm 1 | Experimental | All patients will have the volume treated and radiation dose delivered to the regional lymphatics decreased according to the characteristics of the primary site and involved lymph nodes. The high risk neck will receive 50 Gy instead of 60 Gy, and the treated volume of the contralateral low risk neck will be reduced and receive only 45 Gy. Receives: Radiation: Radiation Therapy (IMRT or IMPT) |
What is being measured
The primary outcome is the main question the study is designed to answer.
2-year locoregional control
Number of patients with 2-year locoregional control, defined as control at the primary site and in the neck, in patients undergoing de-intensified radiation to the primary site and regional lymphatics after Transoral Robotic Surgery (TORS) and neck dissection for p16+ oropharyngeal squamous cell carcinoma (OPSCC)
Measured: 2 years
Secondary outcomes (7)
Treatment-related toxicity
Number of participants with treatment-related toxicity as gauged by Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. the CTCAE v.5 utilizes a five point scale to report Adverse Events (AEs), defined as any unfavorable and unintended sign, symptom, or disease temporally associated with the use of medical treatment or procedure that may or may not be considered related to the medical treatment or procedure (cancer.gov)
Measured: 2 years
2-year progression-free survival
Number of participants with 2-year progression-free survival, defined as the length of time during and after treatment that a patient lives with the disease but it does not get worse (nih.gov)
Measured: 3 years
Differences in toxicity between Intensity-modulated radiation therapy (IMRT) and Intensity Modulated Proton Therapy (IMPT)
Differences in toxicity outcomes in patients treated with IMRT versus proton therapy
Measured: 1 year
Number of participants with change in circulating human papillomavirus(HPV) DNA over the course of treatment
Number of patients with a change in circulating HPV cells during the course of treatment, determined using a next generation sequencing (NGS) assay developed to detect HPV DNA in HPV+ oropharyngeal squamous cell carcinoma patients.
Measured: 2 years
Metastasis-free survival
Number of participants with metastasis-free survival
Measured: 3 years
Patient reported quality of life outcomes
Patient reported quality of life (QOL) outcomes using MD Anderson Symptom Inventory (MDASI) Head and Neck survey between patients treated with IMRT and IMPT. The MDASI-HN assesses the severity of symptoms in the last 24 hours using a 0-10 scale, with 0 being "not present" and 10 being "as bad as you can imagine". The interference of symptoms in the last 24 hours is assessed using a 0-10 scale, with 0 being "did not interfere" and 10 being "interfered completely". The mean of symptom severity and interference can be used to represent overall symptom distress and can be analyzed for changes over treatment and during follow-up.
Measured: 2.5 years
Overall survival
Number of patients with overall survival, as defined by the length of time from the date of diagnosis or start of treatment for a disease that patients diagnosed with the disease are still alive (cancer.gov)
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Nov 2018
- Study start11 Oct 2018
- Primary completion15 Jul 2026
- Study completion15 Jul 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (33)Papers the sponsor has linked to this study.
- Other trials for Oropharyngeal CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 150 participants (actual)
Sponsor and investigators
- Lead sponsor
- Abramson Cancer Center at Penn Medicine
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03729518
- Sponsor's protocol ID
- UPCC 15318
- Status last verified
- Jul 2026
- First submitted
- 29 Oct 2018
- Last updated
- 22 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- No
Publications
Weinstein GS, O'Malley BW Jr, Cohen MA, Quon H. Transoral robotic surgery for advanced oropharyngeal carcinoma. Arch Otolaryngol Head Neck Surg. 2010 Nov;136(11):1079-85. doi: 10.1001/archoto.2010.191.
PubMed 21079160Weinstein GS, Quon H, O'Malley BW Jr, Kim GG, Cohen MA. Selective neck dissection and deintensified postoperative radiation and chemotherapy for oropharyngeal cancer: a subset analysis of the University of Pennsylvania transoral robotic surgery trial. Laryngoscope. 2010 Sep;120(9):1749-55. doi: 10.1002/lary.21021.
PubMed 20717944Ang KK, Harris J, Wheeler R, Weber R, Rosenthal DI, Nguyen-Tan PF, Westra WH, Chung CH, Jordan RC, Lu C, Kim H, Axelrod R, Silverman CC, Redmond KP, Gillison ML. Human papillomavirus and survival of patients with oropharyngeal cancer. N Engl J Med. 2010 Jul 1;363(1):24-35. doi: 10.1056/NEJMoa0912217. Epub 2010 Jun 7.
PubMed 20530316O'Sullivan B, Huang SH, Siu LL, Waldron J, Zhao H, Perez-Ordonez B, Weinreb I, Kim J, Ringash J, Bayley A, Dawson LA, Hope A, Cho J, Irish J, Gilbert R, Gullane P, Hui A, Liu FF, Chen E, Xu W. Deintensification candidate subgroups in human papillomavirus-related oropharyngeal cancer according to minimal risk of distant metastasis. J Clin Oncol. 2013 Feb 10;31(5):543-50. doi: 10.1200/JCO.2012.44.0164. Epub 2013 Jan 7.
PubMed 23295795Cohen MA, Weinstein GS, O'Malley BW Jr, Feldman M, Quon H. Transoral robotic surgery and human papillomavirus status: Oncologic results. Head Neck. 2011 Apr;33(4):573-80. doi: 10.1002/hed.21500. Epub 2010 Dec 6.
PubMed 21425382Quon H, Cohen MA, Montone KT, Ziober AF, Wang LP, Weinstein GS, O'Malley BW Jr. Transoral robotic surgery and adjuvant therapy for oropharyngeal carcinomas and the influence of p16 INK4a on treatment outcomes. Laryngoscope. 2013 Mar;123(3):635-40. doi: 10.1002/lary.22172. Epub 2013 Feb 1.
PubMed 22588642Ingle CJ, Yip K, Caskie V, Dyson C, Ford A, Scrase CD. Intensity modulated radiotherapy (IMRT) in the management of locally advanced oropharyngeal squamous cell carcinomata (SCC): disease control and functional outcome using the therapy outcome measure (TOM) score--report from a single U.K. institution. Head Neck Oncol. 2010 Oct 14;2:28. doi: 10.1186/1758-3284-2-28.
PubMed 20946673Lukens JN, Lin A, Gamerman V, Mitra N, Grover S, McMenamin EM, Weinstein GS, O'Malley BW Jr, Cohen RB, Orisamolu A, Ahn PH, Quon H. Late consequential surgical bed soft tissue necrosis in advanced oropharyngeal squamous cell carcinomas treated with transoral robotic surgery and postoperative radiation therapy. Int J Radiat Oncol Biol Phys. 2014 Aug 1;89(5):981-988. doi: 10.1016/j.ijrobp.2014.04.024. Epub 2014 Jun 10.
PubMed 24928257Weinstein GS, Quon H, Newman HJ, Chalian JA, Malloy K, Lin A, Desai A, Livolsi VA, Montone KT, Cohen KR, O'Malley BW. Transoral robotic surgery alone for oropharyngeal cancer: an analysis of local control. Arch Otolaryngol Head Neck Surg. 2012 Jul;138(7):628-34. doi: 10.1001/archoto.2012.1166.
PubMed 22801885Ojerholm E, Lukens JN, Ahn PH, Geiger G, Swisher-McClure S, Newman J, Chalian A, Weinstein G, O'Malley BW Jr, Cohen R, Lin A. Benefits of omitting primary site radiation therapy after transoral robotic surgery: Only time will tell. Pract Radiat Oncol. 2017 May-Jun;7(3):e157-e158. doi: 10.1016/j.prro.2016.10.019. Epub 2016 Nov 4. No abstract available.
PubMed 28094210Gamez ME, Halyard MY, Hinni ML, Hayden RE, Nagel TH, Vargas CE, Wong WW, Curtis KK, Zarka MA, Ma D, Patel SH. Mucosal Sparing Radiation Therapy in Resected Oropharyngeal Cancer. Ann Otol Rhinol Laryngol. 2017 Mar;126(3):185-191. doi: 10.1177/0003489416681580. Epub 2017 Jan 5.
PubMed 28056518Erratum to: Routman DM, Funk RK, Tangsriwong K, et al. Relapse rates with surgery alone in human papillomavirus-related intermediate- and high-risk group oropharynx squamous cell cancer: A multi-institutional review. Int J Radiat Oncol Biol Phys 2017;99:938-946. Int J Radiat Oncol Biol Phys. 2018 Apr 1;100(5):1304. doi: 10.1016/j.ijrobp.2017.12.286. No abstract available.
PubMed 29722676ClinicalTrials.gov. Post-operative Adjuvant Treatment for HPV-positive Tumours (PATHOS).
Chen AM, Felix C, Wang PC, Hsu S, Basehart V, Garst J, Beron P, Wong D, Rosove MH, Rao S, Melanson H, Kim E, Palmer D, Qi L, Kelly K, Steinberg ML, Kupelian PA, Daly ME. Reduced-dose radiotherapy for human papillomavirus-associated squamous-cell carcinoma of the oropharynx: a single-arm, phase 2 study. Lancet Oncol. 2017 Jun;18(6):803-811. doi: 10.1016/S1470-2045(17)30246-2. Epub 2017 Apr 20.
PubMed 28434660Huang SH, Waldron J, Bratman SV, Su J, Kim J, Bayley A, Cho J, Giuliani M, Hope A, Ringash J, Hansen A, de Almeida JR, Goldstein D, Perez-Ordonez B, Weinreb I, Tong L, Xu W, O'Sullivan B. Re-evaluation of Ipsilateral Radiation for T1-T2N0-N2b Tonsil Carcinoma at the Princess Margaret Hospital in the Human Papillomavirus Era, 25 Years Later. Int J Radiat Oncol Biol Phys. 2017 May 1;98(1):159-169. doi: 10.1016/j.ijrobp.2017.01.018. Epub 2017 Jan 9.
PubMed 28258895
Study at a glance
From the registry record, last updated by the sponsor on 22 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II Study of Volume and Dose De-Intensification Following Transoral Robotic Surgery (TORS) and Neck Dissection for p16+ Oropharyngeal Squamous Cell Carcinoma
- ClinicalTrials.gov ID
- NCT03729518
- Acronym / sponsor ID
- UPCC 15318
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 150 participants (actual)
- Lead sponsor
- Abramson Cancer Center at Penn MedicineUniversity, hospital or other
- Study start
- 11 Oct 2018 (actual)
- Primary completion
- 15 Jul 2026 (actual)
- Study completion
- 15 Jul 2026 (actual)
- First posted
- 2 Nov 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a single-arm Phase II study of adjuvant radiation for locally advanced p16+ oropharyngeal squamous cell carcinoma. The main purpose of this research is to determine the likelihood of cancer growing back in the throat or in the neck two years after completion of radiation if lower doses of radiation are used to a smaller area of the head and neck region than is currently used in standard of care.
Detailed description
This is a single arm Phase II study of adjuvant radiation for locally-advanced p16+ oropharyngeal squamous cell carcinoma. Patients with pT0-T3, N0-N2b, M0 disease (per AJCC 7th ed) with <5 positive lymph nodes, will be eligible. Patients will have undergone TORS primary site resection and ipsilateral neck dissection. Patients will undergo radiation dose reduction and target volume reduction.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Arm 1 | Experimental | Radiation: Radiation Therapy (IMRT or IMPT)All patients will have the volume treated and radiation dose delivered to the regional lymphatics decreased according to the characteristics of the primary site and involved lymph nodes. The high risk neck will receive 50 Gy instead of 60 Gy, and the treated volume of the contralateral low risk neck will be reduced and receive only 45 Gy. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Patients >= 18 years old
- Histologically confirmed diagnosis of squamous cell carcinoma of the oropharynx, p16-positive on immunohistochemistry
- Pathologic T0 (unknown primary), T1, T2, or T3 disease (per AJCC 7th Ed)
- Pathologic N0, N1, N2a, or N2b disease (per AJCC 7th Ed), with < 5 positive lymph nodes
- ECOG Performance Status 0-1
Key exclusion criteria (5 listed)
- Prior radiation therapy to the head and neck
- Presence of T4 disease
- Presence of N2c or N3 neck disease (per AJCC 7th Ed)
- >= 5 lymph nodes
- Presence of distant metastatic disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Radiation Therapy (IMRT or IMPT)* Treatment of the primary tumor bed will be omitted in appropriate patients, as per the initial TORS de-intensification protocol. In those patients requiring treatment of the primary site, reduced dose (50 Gy) will be delivered. * Receipt of concurrent chemotherapy per current guidelines. Chemotherapy may be omitted in patients with focal or microscopic ENE (defined as ≤ 1 mm ENE), at the discretion of the treating Medical Oncologist. * Blood samples will be obtained at time of enrollment, and at two time points during RT, to quantify circulating HPV DNA and perform immune profiling. | Radiation | Arm 1 |
Primary outcome
2-year locoregional control
Time frame: 2 years
Number of patients with 2-year locoregional control, defined as control at the primary site and in the neck, in patients undergoing de-intensified radiation to the primary site and regional lymphatics after Transoral Robotic Surgery (TORS) and neck dissection for p16+ oropharyngeal squamous cell carcinoma (OPSCC)
7 secondary outcomes
Treatment-related toxicity
Time frame: 2 years
2-year progression-free survival
Time frame: 3 years
Differences in toxicity between Intensity-modulated radiation therapy (IMRT) and Intensity Modulated Proton Therapy (IMPT)
Time frame: 1 year
Number of participants with change in circulating human papillomavirus(HPV) DNA over the course of treatment
Time frame: 2 years
Metastasis-free survival
Time frame: 3 years
Patient reported quality of life outcomes
Time frame: 2.5 years
Overall survival
Time frame: 5 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Jul 2026.
- Background: PubMed 21079160Weinstein GS, O'Malley BW Jr, Cohen MA, Quon H. Transoral robotic surgery for advanced oropharyngeal carcinoma. Arch Otolaryngol Head Neck Surg. 2010 Nov;136(11):1079-85. doi: 10.1001/archoto.2010.191.
- Background: PubMed 20717944Weinstein GS, Quon H, O'Malley BW Jr, Kim GG, Cohen MA. Selective neck dissection and deintensified postoperative radiation and chemotherapy for oropharyngeal cancer: a subset analysis of the University of Pennsylvania transoral robotic surgery trial. Laryngoscope. 2010 Sep;120(9):1749-55. doi: 10.1002/lary.21021.
- Background: PubMed 20530316Ang KK, Harris J, Wheeler R, Weber R, Rosenthal DI, Nguyen-Tan PF, Westra WH, Chung CH, Jordan RC, Lu C, Kim H, Axelrod R, Silverman CC, Redmond KP, Gillison ML. Human papillomavirus and survival of patients with oropharyngeal cancer. N Engl J Med. 2010 Jul 1;363(1):24-35. doi: 10.1056/NEJMoa0912217. Epub 2010 Jun 7.
- Background: PubMed 23295795O'Sullivan B, Huang SH, Siu LL, Waldron J, Zhao H, Perez-Ordonez B, Weinreb I, Kim J, Ringash J, Bayley A, Dawson LA, Hope A, Cho J, Irish J, Gilbert R, Gullane P, Hui A, Liu FF, Chen E, Xu W. Deintensification candidate subgroups in human papillomavirus-related oropharyngeal cancer according to minimal risk of distant metastasis. J Clin Oncol. 2013 Feb 10;31(5):543-50. doi: 10.1200/JCO.2012.44.0164. Epub 2013 Jan 7.
- Background: PubMed 21425382Cohen MA, Weinstein GS, O'Malley BW Jr, Feldman M, Quon H. Transoral robotic surgery and human papillomavirus status: Oncologic results. Head Neck. 2011 Apr;33(4):573-80. doi: 10.1002/hed.21500. Epub 2010 Dec 6.
- Background: PubMed 22588642Quon H, Cohen MA, Montone KT, Ziober AF, Wang LP, Weinstein GS, O'Malley BW Jr. Transoral robotic surgery and adjuvant therapy for oropharyngeal carcinomas and the influence of p16 INK4a on treatment outcomes. Laryngoscope. 2013 Mar;123(3):635-40. doi: 10.1002/lary.22172. Epub 2013 Feb 1.
- Background: PubMed 20946673Ingle CJ, Yip K, Caskie V, Dyson C, Ford A, Scrase CD. Intensity modulated radiotherapy (IMRT) in the management of locally advanced oropharyngeal squamous cell carcinomata (SCC): disease control and functional outcome using the therapy outcome measure (TOM) score--report from a single U.K. institution. Head Neck Oncol. 2010 Oct 14;2:28. doi: 10.1186/1758-3284-2-28.
- Background: PubMed 24928257Lukens JN, Lin A, Gamerman V, Mitra N, Grover S, McMenamin EM, Weinstein GS, O'Malley BW Jr, Cohen RB, Orisamolu A, Ahn PH, Quon H. Late consequential surgical bed soft tissue necrosis in advanced oropharyngeal squamous cell carcinomas treated with transoral robotic surgery and postoperative radiation therapy. Int J Radiat Oncol Biol Phys. 2014 Aug 1;89(5):981-988. doi: 10.1016/j.ijrobp.2014.04.024. Epub 2014 Jun 10.
- Background: PubMed 22801885Weinstein GS, Quon H, Newman HJ, Chalian JA, Malloy K, Lin A, Desai A, Livolsi VA, Montone KT, Cohen KR, O'Malley BW. Transoral robotic surgery alone for oropharyngeal cancer: an analysis of local control. Arch Otolaryngol Head Neck Surg. 2012 Jul;138(7):628-34. doi: 10.1001/archoto.2012.1166.
- Background: PubMed 28094210Ojerholm E, Lukens JN, Ahn PH, Geiger G, Swisher-McClure S, Newman J, Chalian A, Weinstein G, O'Malley BW Jr, Cohen R, Lin A. Benefits of omitting primary site radiation therapy after transoral robotic surgery: Only time will tell. Pract Radiat Oncol. 2017 May-Jun;7(3):e157-e158. doi: 10.1016/j.prro.2016.10.019. Epub 2016 Nov 4. No abstract available.
- Background: PubMed 28056518Gamez ME, Halyard MY, Hinni ML, Hayden RE, Nagel TH, Vargas CE, Wong WW, Curtis KK, Zarka MA, Ma D, Patel SH. Mucosal Sparing Radiation Therapy in Resected Oropharyngeal Cancer. Ann Otol Rhinol Laryngol. 2017 Mar;126(3):185-191. doi: 10.1177/0003489416681580. Epub 2017 Jan 5.
- Background: PubMed 29722676Erratum to: Routman DM, Funk RK, Tangsriwong K, et al. Relapse rates with surgery alone in human papillomavirus-related intermediate- and high-risk group oropharynx squamous cell cancer: A multi-institutional review. Int J Radiat Oncol Biol Phys 2017;99:938-946. Int J Radiat Oncol Biol Phys. 2018 Apr 1;100(5):1304. doi: 10.1016/j.ijrobp.2017.12.286. No abstract available.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Radiation Therapy (IMRT or IMPT) in people with Oropharyngeal Cancer and Squamous Cell Carcinoma, run by Abramson Cancer Center at Penn Medicine at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
2-year locoregional control (time frame: 2 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03729518, which also lists 33 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jul 2026; AzTrials last refreshed its copy on 31 Oct 2026.