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A Randomised Phase 1 proof of concept clinical trial of biphasic fractionation schedules to overcome hypoxia in locally advanced squamous cell carcinoma of the head and neck treated with curative intent primary chemo-radiotherapy

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SLCTR Registration Number

SLCTR/2025/002


Date of Registration

21 Jan 2025

The date of last modification

Jan 21, 2025



Application Summary


Scientific Title of Trial

A Randomised Phase 1 proof of concept clinical trial of biphasic fractionation schedules to overcome hypoxia in locally advanced squamous cell carcinoma of the head and neck treated with curative intent primary chemo-radiotherapy


Public Title of Trial

A randomised phase 1 proof-of-concept clinical trial evaluating the feasibility of delivering biphasic fractionation schedules compared to standard fractionation to overcome hypoxia in patients with locally advanced squamous cell carcinoma of the head and neck treated with curative intent chemo-radiotherapy.


Disease or Health Condition(s) Studied

Squamous cell carcinoma of the head and neck


Scientific Acronym

HYPOCON


Public Acronym

HYPOCON


Brief title

A phase 1 trial of biphasic fractionation to overcome hypoxia in head and neck squamous cell carcinoma.


Universal Trial Number

U1111-1315-2653


Any other number(s) assigned to the trial and issuing authority

P-118-08-2024 (ERC, Faculty of Medicine, University of Kelaniya)


Trial Details


What is the research question being addressed?

Is it feasible to deliver a biphasic fractionation regimen, consisting of hyperfractionation followed by hypofractionation, compared to standard fractionantion in patients with squamous cell carcinoma of the head and neck treated with curative intent radiotherapy?


Type of study

Interventional


Study design

Allocation

Randomized controlled trial


Masking

Masking not used


Control

Standard therapy/practice


Assignment

Parallel


Purpose

Treatment


Study Phase

Phase 1


Intervention(s) planned

Eligible patients presenting to the oncology units of the Apeksha Hospital, Teaching Hospital Batticaloa and District General Hospital of Hambantota, Sri Lanka, will be enrolled to the study.

Recruitment of participants will be done by the site investigators and their research teams. Following consent, participants will be allocated to either the control or experimental group, as defined below, with an allocation ratio of 1:1 using random allocation sequence generated by the R software ‘blockrand’ package. Randomisation will be stratified by trial centre.

The investigators and participants will know the treatment allocation. The control group will be treated to a dose of 55 Gy in 20 fractions over 4 weeks. The experimental group will be treated with the following fractionation schedule: Phase 1: 40 Gy in 20 fractions over 3 weeks and 3 days followed by Phase 2: 15 Gy in 3 fractions over 3 days. Participants will be followed up every month during the first year after completing treatment and every 2 months during the second year of treatment. Patients will continue routine follow-up as per institutional protocol thereafter.


Inclusion criteria

  1. Males and females age more than 18 years and less than 70 years of age
  2. Eastern Cooperative Oncology Group (ECOG) performance status 0 and 1
  3. Squamous cell carcinoma of the oropharynx or hypopharynx or larynx or supraglottis
  4. Tumour stage should be N2 or higher
  5. Histopathological or radiological evidence of tumour necrosis.
  6. Suitable for treatment with radiosensitising chemotherapy with intravenous cisplatin: 6.1 Estimated Glomerular Filtration Rate more than 50 ml/min 6.2 Absolute Neutrophil Count more than 1500 cells/mm3 6.3 Platelet Count more than 100,000 cells/mm3 6.4 Haemoglobin more than 10g/dl (Use of transfusions to achieve target Haemoglobin is permitted)

Exclusion criteria

  1. Patients with cervical lymph node metastases with no identifiable primary tumour
  2. Previous history of malignancy
  3. Synchronous separate primary tumour outside the oropharynx, hypopharynx, larynx or supraglottis
  4. Treatment with curative-intent surgery
  5. Presence of systemic metastases
  6. Pregnancy


Primary outcome(s)

1.

Proportion of patients who completed all treatment fractions as outlined in the protocol

[

At 24 months.

]

Secondary outcome(s)

1.

The rate of toxicities (classified per CTCAE version 5.0.) that are possibly, probably and definitely related to radiotherapy.

[

Ongoing, up to 24 months

]
2.

Tumor response rate (complete response, partial response, stable disease, or progressive disease) based on clinical or radiological assessment.

Complete response: Defined as complete radiological response of the primary tumour and lymph nodes on Positron emission tomography / computed tomography (PET/CT) or Contrast enhanced computed tomography (CECT) imaging.

Partial response: Defined as more than 50% reduction of tumour volume in the primary tumour and lymph nodes as per the RECIST criteria.

No response: Defined as less than 50% reduction of tumour volume in the primary tumour and lymph nodes as per RECIST criteria.

Progressive disease: Defined as an increase of 20% of tumour volume in the primary tumour and/or lymph nodes or the emergence of new nodal or systemic metastatic lesions.

[

Ongoing, up to 24 months

]
3.

Time to disease progression or death from randomisation. Disease recurrence in either the primary tumour, lymph nodes or systemic sites will be considered as an event determining disease progression. Partial response, no response or progressive disease shall be considered as disease progression with time set to end of completion of radiotherapy.

[

Ongoing, up to 24 months

]
4.

Time from the start of treatment to death from any cause

[

Ongoing, up to 24 months

]

Target number/sample size

46 (23 in each arm)


Countries of recruitment

Sri Lanka


Anticipated start date

2025-02-17


Anticipated end date

2029-12-31


Date of first enrollment


Date of study completion


Recruitment status

Pending


Funding source

The Sri Lanka Cancer Research Group Sri Lanka College of Oncologists.


Regulatory approvals

Not applicable



State of Ethics Review Approval


Status

Approved


Date of Approval

2024-09-10


Approval number

P-118-08-2024


Details of Ethics Review Committee

Name: Ethics Review Committee, Faculty of Medicine, University of Kelaniya
Institutional Address:P.O Box 6, Thalagolla Road, Ragama, Sri Lanka
Telephone:+94 11 2961267
Email: erckelaniya@gmail.com

Contact & Sponsor Information


Contact person for Scientific Queries/Principal Investigator

Dr. Nuradh Joseph,
Consultant Clinical Oncologist
District General Hospital, Hambantota

+94777745544

nuradh@gmail.com

Contact Person for Public Queries

Dr. Nuradh Joseph,
Consultant Clinical Oncologist
District General Hospital, Hambantota

+94777745544

nuradh@gmail.com


Primary study sponsor/organization

The Sri Lanka Cancer Research Group

Sri Lanka College of Oncologists National Cancer Institute, Maharagama, Sri Lanka


slconcology@gmail.com

Secondary study sponsor (If any)

None





Trial Completion details


Do the investigators plan to share identified individual clinical trial participant-level data (IPD)?

No


IPD sharing plan description


Study protocol available

No


Protocol version and date

Not Available


Protocol URL

Not Available


Results summary available

No


Date of posting results


Date of study completion


Final sample size


Date of first publication


Link to results


Brief summary of results