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Gleichzeitige Radiochemotherapie + 5-FU + Mitomycin-C bei Analkarzinom

11. September 2026 aktualisiert von: Jennifer Wo, Massachusetts General Hospital

Eine Pilot-Machbarkeitsstudie zur definitiven gleichzeitigen Chemoradiation mit Pencil Beam Scanning Proton Beam in Kombination mit 5-Fluorouracil und Mitomycin-C bei Analkanalkarzinom

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.

Studienübersicht

Detaillierte Beschreibung

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.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

25

Phase

  • Frühphase 1

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

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

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

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

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: N / A
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: 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

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Number of Participants With Grade 3+ Dermatologic Toxicity
Zeitfenster: 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

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Clinical Complete Response on Digital Rectal Exam
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 2 years

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

2 years
Progression Free Survival
Zeitfenster: 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
Zeitfenster: 2 years

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

2 years

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Ermittler

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

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

1. Juli 2013

Primärer Abschluss (Tatsächlich)

1. Juli 2017

Studienabschluss (Tatsächlich)

1. November 2021

Studienanmeldedaten

Zuerst eingereicht

16. Mai 2013

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

16. Mai 2013

Zuerst gepostet (Geschätzt)

20. Mai 2013

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

6. Oktober 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

11. September 2026

Zuletzt verifiziert

1. September 2026

Mehr Informationen

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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