Clinical trial Recruiting at 3 sites Interventional Ages 18 and up

Using blood tests to improve follow-up care for anal cancer

Official title: NOAC9 - A Phase II Randomised Nordic Anal Cancer Group Study on Circulating Tumor DNA Guided Follow-Up

Run by Aarhus University Hospital · NCT05572801 · Data updated 2026-11-12

This study is testing if blood tests that check for tumor DNA can help doctors find out sooner if anal cancer treatment isn't working or if the cancer comes back, so patients can get better care.

More Anal Cancer trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment400 (estimated)
SponsorAarhus University Hospital
Academic / other
Drugs / interventionschemotherapy, radiation
Locations13 sites (Herlev, Capital Region of Denmark and 12 other locations)
StatusRecruiting
StartedAugust 2, 2023
Main results expectedJune 1, 2026
Study endsJune 1, 2031
Registry record updatedAugust 14, 2024
Trial IDNCT05572801 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older diagnosed with localized squamous cell carcinoma of the anus who are eligible for definitive chemoradiotherapy.

Probably not a fit

Patients with conditions that contraindicate blood sampling or PET-CT scans, or those who may not comply with the follow-up program, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates whether circulating tumor DNA (ctDNA) can enhance the detection of early treatment failures or recurrences in patients with localized squamous cell carcinoma of the anus (SCCA) after receiving curative chemoradiotherapy. By comparing standard follow-up programs with ctDNA-guided imaging follow-up, the study aims to improve patient outcomes and increase the chances of curative surgery. Additionally, it seeks to establish early interventions to manage late morbidities associated with the disease.

Why it matters

Potential benefit: If successful, this approach could lead to earlier detection of treatment failures, improving survival rates for patients with anal cancer.

How similar studies have gone: Other studies have shown promise in using ctDNA for monitoring cancer treatment responses, suggesting that this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with SCCA eligible for definitive (chemo)radiotherapy
* ≥ 18 of years
* Written and oral consent

Exclusion Criteria:

* Conditions that will contraindicate blood samples
* Conditions that will contraindicate a PET-CT scan.
* Potential lack of compliance to standard FU program and study participation.

Where it's running

  • Department of Oncology Herlev and Gentofte Hospital
    Herlev, Capital Region of Denmark, Denmark
    Recruiting
  • Department of Oncology, Vejle Hospital
    Vejle, The Regions of Southern Denmark, Denmark
    Recruiting
  • Aarhus University Hospital
    Aarhus, Denmark
    Recruiting
  • Tampere University Hospital
    Tampere, Finland
    Not yet recruiting
  • Turku University Hospital
    Turku, Finland
    Not yet recruiting
  • Haukeland University Hospital
    Bergen, Norway
    Not yet recruiting
Show 7 more locations
  • Oslo University Hospital
    Oslo, Norway
    Not yet recruiting
  • University Hospital of North Norway
    Tromsø, Norway
    Not yet recruiting
  • St. Olav's University Hospital
    Trondheim, Norway
    Not yet recruiting
  • Sahlgrenska University Hospital
    Gothenburg, Sweden
    Not yet recruiting
  • Skåne University Hospital Lund
    Lund, Sweden
    Not yet recruiting
  • Karonlinska University Hospital
    Stockholm, Sweden
    Not yet recruiting
  • Norrlands University Hospital
    Umeå, Sweden
    Not yet recruiting

Study contacts

  • Principal investigator: Karen-Lise G Spindler, Professor — Department of Experimental Clinical Oncology Aarhus Univeristy Hospital
  • Study coordinator: Karen-Lise G Spindler, Professor
  • Email: k.g.spindler@rm.dk
  • Phone: 91137244

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Retifanlimab after chemoradiation for anal cancer

    This study tests whether retifanlimab can help people with anal squamous cell carcinoma who have completed chemoradiation and still have residual disease.

    Recruiting at 7 sites Phase 2 Memorial Sloan Kettering Cancer Center · Basking Ridge, New Jersey and 6 other locations · NCT07927998

  • Irreversible Electroporation for Recurrent Pelvic Tumors

    This study tests whether using irreversible electroporation (IRE) is safe and helps control recurrent pelvic tumors in adults who can’t have other local treatments.

    Recruiting Amsterdam UMC, location VUmc · Amsterdam, North Holland · NCT07782164

  • HPV DNA-guided chemoradiation with Retifanlimab for locally advanced anal cancer

    This study tests whether adjusting chemoradiation doses based on HPV ctDNA results and adding Retifanlimab after CRT can improve outcomes for adults with new, locally advanced anal cancer.

    Recruiting Phase 2 Case Comprehensive Cancer Center · Cleveland, Ohio and 1 other locations · NCT07425054

  • Gynecological and sexual health after radiotherapy for anal cancer.

    See if vaginal problems and changes in sexual health are linked to radiation dose in women treated with chemoradiotherapy for anal cancer 6–36 months after treatment.

    Recruiting at 3 sites Aarhus University Hospital · Aarhus and 2 other locations · NCT07296237

  • Self-sampling to improve anal lesion outcomes

    This study will test whether people at higher risk for anal cancer will use a self-collected anal swab and whether that increases follow-up cytology and high-resolution anoscopy (HRA) appointment attendance.

    Recruiting at 3 sites Medical College of Wisconsin · Chicago, Illinois and 2 other locations · NCT07192055

  • Testing trastuzumab deruxtecan (T‑DxD) for HER2‑positive advanced solid tumors

    This will test whether trastuzumab deruxtecan (T‑DxD) helps adults in the US with HER2‑positive (IHC 3+) locally advanced, unresectable, or metastatic solid tumors who have had prior systemic treatment and have no satisfactory alternative options.

    Recruiting at 18 sites AstraZeneca · Birmingham, Alabama and 17 other locations · NCT07124000

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.