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Dosjusterad kemoradioterapi vid HPV-associerad orofarynxcancer hos äldre ((DACHOC-E))

28 september 2026 uppdaterad av: Omar Mahmoud

Pilotförsök med dosjusterad kemoradioterapi vid HPV-associerad orofarynxcancer hos äldre (DACHOC-E)

Previous studies of this type of head and necl cancer have shown high rates of cancer control but result in many short and long term side effects when treated with high dose radiation and chemotherapy. Recently, investigators have noticed similar high rates of cancer control in small numbers of patients who receive less intensive treatments using lower doses of radiation, smaller radiation fields with chemotherapy. It is expected that the side effects of treatment with lower doses of radiation would be less.

For this reason this study is looking at a different regimen of reducing the intensity of the treatment.

The purpose of this study is to compare any good and bad effects of using lower dose smaller fields radiation therapy and chemotherapy with published outcomes. This study will allow the researchers to know whether these different approaches are better, the same, or worse than the usual approach. To be better, the study approach should result in the same survival rate of the usual approach (about 85 out of 100 patients alive and free of cancer at 2 years) but with less long-term side effects.

Studieöversikt

Detaljerad beskrivning

There will be about 30 people taking part in this study. This study has one study group. All the people on the study will receive radiation therapy once a day, 5 days a week (for a total of 55 Gy over 5 weeks) and chemotherapy, cisplatin, (given through the vein for about 30-60 minutes) once a week for 5 weeks.

Medications and saline solutions to prevent side effects of chemotherapy may also be given by vein and may prolong your time in the chemotherapy clinic to as much as 4-6 hours.

Standard regimen not delivered on this study pertains to radiation therapy and chemotherapy, cisplatin in a schedule of 5 treatments a week for a total of 69.96 Gy over 6.5 weeks.

Studietyp

Interventionell

Inskrivning (Beräknad)

20

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studera Kontakt Backup

Studieorter

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

65 år till 99 år (Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Pathologically proven diagnosis of squamous cell carcinoma of the oropharynx (tonsil, base of tongue, soft palate, or oropharyngeal walls)
  • Patients must have clinically or radiographically evident measurable disease at the primary site or at nodal stations.
  • P16-positive based on local site immunohistochemical tissue staining
  • Clinical stage T1-3, N1-2, M0 (AJCC, 8th ed.)
  • Age ≥ 65.
  • Normal organ and marrow function within 14 days prior to registration defined as follows:
  • Absolute neutrophil count ≥ 1,500/mcL
  • Platelets ≥ 100,000/mcL
  • Hemoglobin ≥ 8.0 g/dL
  • Total bilirubin ≤ 1.5× institutional upper limit of normal (ULN)
  • AST(SGOT) or ALT(SGPT) ≤ 3.0 × institutional ULN
  • Serum creatinine ≤ 1.5× ULN

Exclusion Criteria:

  • Metastatic disease
  • Recurrent disease after primary management Cancers with center of mass is outside the oropharyngeal boundaries
  • Synchronous double primaries
  • Prior radiotherapy for lymphoma or other malignancy
  • Prior systemic therapy including immunotherapy
  • Severe active comorbidity where life expectancy is <1 year.
  • Autoimmune disease
  • Uncontrolled HIV

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Experimental

Cisplatin: 30-40 mg/m2/week, every week during radiation. Dose should be based on actual body weight. The first cisplatin infusion should be started within 24 hours before or after the first scheduled radiation treatment.

Intensity Modulated Radiation Therapy (IMRT) and Image-Guided Radiation Therapy (IGRT) are mandatory for this study.

55 Gy radiation in 5 weeks using 5 fractions per week + Cisplatin every week

Instead of standard bilateral or extensive neck fields, the current radiation fields will cover disease with only 3cm expansion. The clinical target volumes doses are biologically equivalent to the standard but given in a shorter hypofractionated approach.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Two-year progression free survival
Tidsram: 2 years

Assuming the primary endpoint (non-inferior 2 year locoregional control) is met and both of these toxicity outcome goals are met, then concurrent short course radiotherapy would be considered an effective and less toxic alternative to concurrent standard arm, in locally advanced HPV-associated carcinoma of the oropharynx.

2 years

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Benefit and Tolerance of Treatment
Tidsram: 2 years

Frailty index G8 score 14 as major determinant of benefit and tolerance to treatment through:

Per prior study score <14 (1-17) is an indicator of frailty. The frailty as a factor in completing therapy (yes or no) and number of days break from therapy will be used as a variable.

G20 frailty index (G-20 is the actual name and not abbreviation) is as follows:

A Has food intake declined over the past 3 months due to loss of appetite, digestive problems, chewing or swallowing difficulties? B Weight loss during the last 3 months C Mobility D Neuropsychological problems E Body Mass Index (BMI (weight in kg) / (height in m²) F Takes more than 3 medications per day G In comparison with other people of the same age, how does the patient consider his/her health status? H Age

2 years
Acute Toxicity
Tidsram: 2 years

Acute toxicity (Grade 3 or higher)

2 years
Late toxicity
Tidsram: 2 years

Late toxicity (Grade 3 or higher)

2 years
Failure pattern
Tidsram: 2 years

Pattern failure (local in field, local marginal miss, local regional failure, distant failure, combination of the above).

As some of the patient may have recurrence in the radiation fields, this will be termed local recurrence. Recurrence outside the radiation fields but in the head and neck area will be quantified as regional failure. Failure outside the head and neck area will be classified as distant failure. This outcome will be quantified as global number of failure out of the 20 patients and their distribution will be quantified in a diagram as explain above.

2 years

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

15 december 2025

Primärt slutförande (Beräknad)

30 september 2027

Avslutad studie (Beräknad)

30 september 2027

Studieregistreringsdatum

Först inskickad

22 februari 2024

Först inskickad som uppfyllde QC-kriterierna

6 mars 2024

Första postat (Faktisk)

13 mars 2024

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

29 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

28 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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