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Gelijktijdige chemoradiatie + 5-FU + mitomycine-C bij anaal carcinoom

11 september 2026 bijgewerkt door: Jennifer Wo, Massachusetts General Hospital

Een pilot-haalbaarheidsstudie van definitieve gelijktijdige chemoradiatie met Pencil Beam Scanning Proton Beam in combinatie met 5-fluorouracil en mitomycine-C voor carcinoom van het anale kanaal

This research study is a Pilot Study. Pilot studies are conducted to see if it is practical to do this type of research ona larger scale in the future. The pilot part of the study is to assess the possibility of using pencil beam proton radiation to treat your type of cancer. Proton radiation is used for many other types of malignancies, but its use for the treatment of anal cancer has been limited. The treatment is still being studied as research doctors are trying to find out more about its use in the treatment of anal cancer. Proton beam radiation therapy is an FDA approved radiation delivery system.

You are being asked to participate in this study because you have cancer in the anal canal. Conventional radiation therapy with photons in combination with 5-FU and mitomycin-C is used as standard treatment for many patients with anal cancer.

In this research study we are looking at another type of radiation called proton radiation, which is known to spare surrounding tissue and organs from radiation. Proton radiation delivers radiation to the area requiring radiation but delivers no dose beyond the region requiring treatment. There are several techniques that can be used to deliver proton radiation therapy. One of the newer techniques, called pencil beam scanning, allows for more accurate delivery of radiation to your tumor and further reduces the amount of normal tissue exposed to radiation. Most proton patients are treated with a number of beams that study doctors conform to the shape of your tumor. Pencil beam scanning delivers radiation with a single, narrow proton beam that is swept over the area of your tumor. This may reduce side effects that patients would normally experience with conventional radiation therapy or other means of delivering proton radiation therapy, and also minimizes treatment time.

In this research study, we are evaluating the effectiveness of using pencil beam proton radiation delivered to reduce side effects associated with radiation treatment.

Studie Overzicht

Gedetailleerde beschrijving

If you agree to participate in this study, you will be asked to undergo some screening tests or procedures to confirm that you are eligible. Many of these tests and procedures are likely to be part of regular cancer care and may be done even if it turns out that you do not take part in the research study. If you have had some of these tests or procedures recently, they may or may not have to be repeated. The screening will include the following: a medical history, physical examination, biopsy of your tumor, anal and groin exam, archival tumor tissue, CT or PET-CT, MRI, blood tests and a serum pregnancy test. If these tests show that you are eligible to participate in the research study, you will begin the study treatment. If you do not meet the eligibility criteria, you will not be able to participate in this research study.

Proton Radiation will be delivered daily for 5-6 weeks, depending on the dose prescribed by your physician. Treatment is delivered (Monday-Friday) for 5 days (no weekends or holidays). Each treatment will require that you lie on a table for 25-30 minutes.

You will receive radiation therapy as an outpatient at the Massachusetts General Hospital.

You will start receiving chemotherapy within 5 days of starting radiation treatment. The day you start chemotherapy will be considered Day 1.

You will receive Mitomycin-C on Days 1 and 29 of chemotherapy. Mitomycin-C will be delivered via IV infusion over a period of 10-30 minutes.

You will receive 5-fluorouracil on Day 1 and 29 of chemotherapy. You will be fitted with an ambulatory infusion pump that will administer 5-FU via IV infusion continuously over a period of 96 hours. The infusion pump will be about the size of a paperback book that can fit into a front-pack or "fanny-pack" around your waist. This pump will be connected to your body. The nurses in the infusion room will start the pump and disconnect it after 4 days.

At your 6 and 12 week follow up visits, a physical examination and the tests and procedures you receive will tell your study doctor whether your disease has gotten better, worse or stayed the same.

If your cancer has gotten better, you will continue to be monitored at your follow up visits.

If your cancer is suspected to have gotten worse, you will need to have a biopsy to confirm. If the biopsy is negative, you will need to come back for re-evaluation at 16 weeks (about 4 months) after completing radiation therapy.

If the biopsy confirms that your cancer has gotten worse, your doctor will recommend that you have surgery for the removal of your tumor.

If your cancer has stayed the same, your doctor will recommend that you have additional procedures done to develop a plan for treatment.

After you complete radiation therapy, you will be followed for up to 5 years.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

25

Fase

  • Vroege fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

    • Massachusetts
      • Boston, Massachusetts, Verenigde Staten, 02114
        • Massachusetts General Hospital
    • Pennsylvania
      • Philadelphia, Pennsylvania, Verenigde Staten, 19104
        • Roberts Proton Therapy Center of the University of Pennsylvania

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Histologically or cytologically confirmed invasive primary squamous, basaloid or cloacogenic carcinoma of the anal canal
  • Life expectancy of at least 3 months

Exclusion Criteria:

  • Prior abdominopelvic radiotherapy
  • Prior systemic therapy for anal cancer
  • Pregnant or breastfeeding
  • Receiving other investigational agents
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to mitomycin-C or 5-fluorouracil
  • Prior surgery for cancer of the anus that removed all macroscopic anal cancer
  • Uncontrolled intercurrent illness
  • AIDS based on current CDC definition
  • Other immunocompromised status
  • Individuals with a history of a different malignancy are ineligible except for the following circumstances: disease-free for at least 5 years or at low risk for recurrence or cervical cancer in situ, and basal cell or squamous cell carcinoma of the skin

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: NVT
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Pencil Beam Scanning Radiation

Pencil Beam Radiation daily, Monday-Friday, for 5-6 weeks Mitomycin-C via IV on Days 1 and 29 5-Fluorouracil via infusion pump over 4 days, starting Day 1 and 29 of chemotherapy

Andere namen:
  • 5-FU

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Number of Participants With Grade 3+ Dermatologic Toxicity
Tijdsspanne: 2 years

Proton radiotherapy will be considered feasible if grade 3+ skin toxicity seen on this protocol is less than 48% (reported grade 3+ dermatologic toxicity from RTOG 98-11)

2 years

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Clinical Complete Response on Digital Rectal Exam
Tijdsspanne: Median follow up of 27 months

Overall rate of clinical complete response using digital rectal examination performed every 4 to 6 weeks until complete clinical response (cCR) up to 6 months. Patients were followed with digital rectal examination every 3 months until year 2, then every 6 months until year 5, and annual scans for 3 years thereafter.

Median follow up of 27 months
Local Failure
Tijdsspanne: 2 years

Estimate the rate of local failure; local failure will be measured from study entry to date of first local or regional failure

2 years
Colostomy-Free Survival
Tijdsspanne: 2 years

Estimate the rate of colostomy-free survival; colostomy-free survival will be measured from study entry.

2 years
Progression Free Survival
Tijdsspanne: 2 years

Estimate the rate of progression free survival; progression free survival will be measured from study entry to date of first local, regional, distant or second primary failure or date of death.

2 years
Overall Survival
Tijdsspanne: 2 years

Estimate the rate of overall survival; overall survival will be measured from study entry to 2 years

2 years

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Jennifer Y. Wo, MD, Massachusetts General Hospital

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 juli 2013

Primaire voltooiing (Werkelijk)

1 juli 2017

Studie voltooiing (Werkelijk)

1 november 2021

Studieregistratiedata

Eerst ingediend

16 mei 2013

Eerst ingediend dat voldeed aan de QC-criteria

16 mei 2013

Eerst geplaatst (Geschat)

20 mei 2013

Updates van studierecords

Laatste update geplaatst (Werkelijk)

6 oktober 2026

Laatste update ingediend die voldeed aan QC-criteria

11 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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