SURVEILLE-HPV: Evaluation of HPV16 Circulating DNA as Biomarker to Detect the Recurrence, in Order to Improve Post Therapeutic Surveillance of HPV16-driven Oropharyngeal Cancers

Unicancer

Status and phase: Enrolling; Phase 2

Conditions: Oropharynx Squamous Cell Carcinoma

Treatments: Biological: HPV16 Ct-DNA dosing

Study type: Interventional

Funder types: Other

Identifiers

NCT05582122

UC-HNG-2209

Details and patient eligibility

About

SURVEILLE-HPV - A new post therapeutic surveillance strategy for HPV-driven oropharyngeal cancer based on HPV Circulating DNA measures.

HPV-positive oropharyngeal cancer patients have a much better prognosis that their HPV-negative counterparts. Despite this, Post Treatment Surveillance (PTS) strategy does not take into account HPV status.

HPV Circulating DNA (HPV Ct DNA) has emerged as a promising tool to assess the risk of cancer recurrence following treatment. We assume that this biomarker could be helpful to guide PTS.

The number of systematic PTS visits could be significantly reduced in patients with undetectable HPV Ct DNA whereas a closer clinical and radiological follow up could be performed in case of detectable HPV Ct DNA.

If confirmed, this new strategy could have several benefits including:

• reduction of PTS visits for most HPV-positive patients which implies a potential cost decrease and
• Identification of relapse at early stages (before the occurrence of symptoms)

Enrollment: 420 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Patient aged 18 years or over

2. Patient with p16 positive Oropharyngeal squamous cell carcinoma (OPSCC)

3. Clinical stage T1-4, N0-3, M0 (stages I-III)

4. Any tobacco status

5. Life expectancy greater than 36 months

6. Positive HPV16 Ct-DNA measured before curative anticancer treatment

7. Treated by any curative treatment

8. Complete response at 3 months after end of treatment, which means:

   • Undetectable HPV16 Ct-DNA and no residual disease on imaging (group A) or
   • Undetectable HPV16 Ct-DNA and suspicious imaging but persistent disease excluded by either biopsy or repeated imaging (group B1) or
   • Positive HPV16 Ct-DNA and no residual disease on imaging but negative HPV16 Ct-DNA on the subsequent assessment. This second test will be done 1-2 months after the first one (group C1).

9. Patient must be affiliated to a Social Security System (or equivalent)

10. Patients must have signed a written informed consent form prior to any trial specific procedures. If the patient is physically unable to give his/her written consent, a trusted person of his/her choice, note related to the investigator or the sponsor, can confirm in writing the patient's consent.

Exclusion criteria

1. Uncontrolled intercurrent illness that would limit compliance with study requirements.
2. Active invasive malignancy within 3 years of inclusion except for non-invasive malignancies such as non-melanomatous carcinoma of the skin or ductal carcinoma in situ of the breast that has/have been surgically cured.
3. Any other HPV induced cancer within 5 years
4. Any condition that may jeopardize the patient participation as well as non-contraception for male and female with child-bearing potential, pregnancy or breast-feeding
5. Patient unwilling or unable to comply with the study protocol and follow-up schedule.
6. Participation in another clinical trial with an investigational medical product during the last 30 days prior to the inclusion and during the present study (except if patient is included in the control arm, with placebo or with a product that have a marketed authorization, used as per the summary of product characteristics (SmPC) for the given indication).
7. Patient deprived of liberty or placed under protective custody or guardianship.

Trial design

Primary purpose: Diagnostic

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

---

420 participants in 2 patient groups

Standard follow-up monitoring (16 visits over 5 years)

No Intervention group

Description:

Patients enrolled in the control arm will be monitored according to SFORL guidelines. Physical Examination (PE) will be carried out: - every 2 months the 1st year, every 3 months the 2nd year, every 4 months the 3rd year, every 6 months at 4 and 5 years. Annual chest CT scan will be performed for current smokers \& for those who have quit smoking less than 15 years ago.

Lightened follow-up visits frequency (9 visits over 5 years), with HPV16 Ct-DNA dosing

Experimental group

Description:

Physical Examinations (with HPV16 Ct-DNA dosing) planned at Months 4,8,12,18,24,30,36,48,60 post treatment. Annual chest CT scan will be performed for current smokers \& for those who have quit smoking less than 15 years ago. Any patient with a normal PE but positive HPV16 ct-DNA test during follow-up period will require a confirmation test \~1-2 months later. If HPV16 ct-DNA positivity is confirmed, an H\&N MRI /PET-CT will be performed. Then: * If MRI and PET-CT are negative, the patient will be examined every 2 months (PE and HPV16 Ct-DNA dosing) and MRI/PET-CT will be repeated every 4-6 months, until HPV16 Ct-DNA becomes undetectable. * If MRI and/or PET-CT is positive, the patient will get a biopsy to confirm disease recurrence. Once confirmed, the patient will have the necessary care, as per local practices, but will continue to be followed up within this study up to 5 years after treatment.

Treatment:

Biological: HPV16 Ct-DNA dosing