ClinicalTrials.gg
RecruitingNCT07256158FIL_PRIORITYUpdated Aug 27, 2026

PET Guided Dose Reduction for InvOlved Site Radiotherapy In Early sTage Unfavourable Hodgkin Lymphoma

A Phase 3 interventional study of 20 Gy Involved site radiotherapy and 30 Gy Involved site radiotherapy in Hodgkin Lymphoma, sponsored by Fondazione Italiana Linfomi - ETS. Recruiting at 38 sites in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-27.

Sponsored by Fondazione Italiana Linfomi - ETS · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Jul 2026; still recruiting 4 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
518
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The final analysis of GHSG HD11 study (not PET driven) showed that 30 Gy IFRT still remains the standard dose after 4 ABVD.

Early PET negativity might allow safe radiation de-escalation in patients achieving a metabolic complete response after 2 ABVD.

The aim of Priority trial is to explore whether radiotherapy could be safely deescalated to 20 Gy without loss of efficacy in patients treated with four cycles of ABVD who achieved complete metabolic response after the first two cycles.

02

Conditions studied

  • Hodgkin Lymphoma

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Keywords

  • Hodgkin lymphoma
  • Early stage
  • unfavourable
  • untreated
  • ABVD
  • chemotherapy
  • radiotherapy
  • 20 Gy
  • 30 Gy
  • randomization
  • PET guided
  • involved site
03

In context

Hodgkin Disease

1,383 studies on the registry are indexed under Hodgkin Disease; 163 are open to participants now.

This study's planned enrollment of 518 is above the median of 40 across 1,095 interventional studies indexed under Hodgkin Disease.

Browse Hodgkin Disease studies →

Lead sponsor

Fondazione Italiana Linfomi - ETS is the lead sponsor of 91 studies on the registry; 23 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥18 years;
  • confirmed classical HL stage I, II unfavorable according to GHSG criteria;
  • Patient with any nodal mass ≥ than 10 cm can be included
  • No previous treatment for Hodgkin lymphoma;
  • performance status 0 to 2;
  • Presence of FDG-avid lymphoma lesions on baseline PET scan;
  • Subject understands and voluntarily signs the form approved by the Independent Ethics Committee (IEC), prior to the initiation of any screening or study-specific procedures;
  • Adequate organ and marrow function as defined below:

    • > 1.0 x109/L
    • count > 75 x109/L
    • Total \< 2 mg/dl without a pattern consistent with Gilbert's syndrome
    • and Alanine Transaminase (AST/ALT) \< 3.0 X institutional Upper Limits of Normality ()
    • Creatinine within normal institutional limits or > 50 mL/min
  • Women of must agree to use a highly effective method of (oral contraceptives, contraceptive injections, contraceptive patch, intrauterine device) from the signature of informed consent until six months after the last dose of treatment;
  • Men must agree to use a highly effective method of contraception (barrier contraception or abstinence, when this is in line with the usual lifestyle of the subject) from the signature of informed consent until six months after the last dose of treatment;
  • Women of childbearing potential must have a negative serum pregnancy test at screening.

Exclusion criteria

Exclusion Criteria:

  • Patients who meet any of the following criteria are not eligible to enroll:
  • Stage II B- III- IV
  • Hodgkin Lymphoma as "composite lymphoma" or nodular lymphocyte prevalence histological subtype
  • Active and infection
  • seropositivity
  • Pre-treatment with chemotherapy or radiation therapy
  • Malignant disease within the last 5 years (excluding basal skin tumors and carcinoma in situ of the cervix)
  • Women who are pregnant or breast feeding
  • Absence of FDG-avid lymphoma lesions on baseline PET scan
  • Significant history of neurologic, psychiatric, endocrinological, metabolic, immunologic, or hepatic disease that would preclude participation in the study or compromise ability to give .
Terms in these criteria, in plain language(14)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
518 participants (estimated)

Study arms

  • Experimental
    Experimental arm - 20 Gy Radiotherapy

    Involved site radiotherapy (ISRT) Total dose of 20 Gy is administered in 10 daily fractions of 2.0 Gy, five times a week over 2 weeks

    Radiation: 20 Gy Involved site radiotherapy

  • Active comparator
    Comparator arm - 30 Gy Radiotherapy

    Involved site radiotherapy (ISRT) Total dose of 30 Gy is administered in 15 daily fractions of 2.0 Gy, five times a week over 3 weeks

    Radiation: 30 Gy Involved site radiotherapy

Interventions

  • Radiation20 Gy Involved site radiotherapy

    Total dose 20 Gy Involved site radiotherapy

  • Radiation30 Gy Involved site radiotherapy

    Total dose 30 Gy Involved site radiotherapy

06

What researchers measure

Primary outcomes

  1. To evaluate if de-escalated ISRT dose (20 Gy) is not inferior to conventional ISRT dose (30 Gy) in terms of PFS in patients with newly diagnosed early-stage unfavourable HL achieving a complete metabolic response (DS 1-3) after 2 ABVD cycle

    Progression-Free Survival (PFS) of the randomized population. Subjects with incomplete follow-up or with no disease evaluation will be censored at the date of last available documented status of freedom from failure.

    Time frame: From the date of randomization to documented relapse, progression or to the patient's death as a result of any causes (up to 82 months).

Secondary outcomes

  1. To compare OS rates between de-escalated ISRT dose (20 Gy) and conventional ISRT dose (30 Gy) in patients with newly diagnosed early-stage unfavourable HL achieving a complete metabolic response (DS 1-3) after 2 ABVD cycles;

    Overall Survival (OS) for the randomized population

    Time frame: From the time of randomization to death from any cause (up to 82 months)

  2. To evaluate PFS for the whole population

    Progression free survival for the whole enrolled population

    Time frame: From the date of consent to documented relapse, progression or death from any cause (up to 84 months)

  3. To evaluate OS for the whole population

    Overall Survival (OS) for the whole population

    Time frame: From the date of consent to death from any cause (up to 84 months)

  4. To describe pattern of failure "in field", "marginal field", "out of field" relapse after conventional and reduced ISRT;

    Incidence and severity of Adverse Events, graded according to the latest version of the Common Terminology Criteria for Adverse Events (CTCAE v 5.0) during the treatment

    Time frame: From the date of consent to death from any cause (up to 84 months)

  5. To report details on RT treatment volumes and dose distributions and to estimate the dose received by the organs at risk (OARs) in the two treatment arms

    RT dose received by organs at risk (OARs).

    Time frame: At time of radiotherapy (about 4 months from chemotherapy start)

07

Study locations

1 of 38 sites recruiting
  • A.O.U. SS. Antonio e Biagio e C. Arrigo - S.C.D.U. Ematologia
    Alessandria, Italy
    Not yet recruiting
  • A.O.R.N. G Moscati - U.O.C. Ematologia e Terapie cellulari avanzate
    Avellino, Italy
    Not yet recruiting
  • IRCCS Centro Riferimento Oncologico - S.O.C. Oncologia medica e dei tumori immuno-correlati
    Aviano, Italy
    Not yet recruiting
    • Michele Spina, MD · Contactmspina@cro.it
    • Michele Spina, MD · Principal investigator
  • ASST Papa Giovanni XXIII - S.C. Ematologia
    Bergamo, Italy
    Not yet recruiting
  • Clinica Humanitas Gavazzeni - U.O. Oncologia Medica
    Bergamo, Italy
    Not yet recruiting
  • ASST Spedali Civili - S.C. Ematologia
    Brescia, Italy
    Not yet recruiting
  • ARNAS "Brotzu" P.O. Businco - S.C. Ematologia e TMO
    Cagliari, Italy
    Not yet recruiting
  • I.R.C.C.S. Istituto di Candiolo - FPO
    Candiolo, Italy
    Not yet recruiting
  • ARNAS Garibaldi - U.O.C. Ematologia
    Catania, Italy
    Not yet recruiting
  • A.O. S. Croce e Carle - S.C. Ematologia
    Cuneo, Italy
    Not yet recruiting
  • A.S.L. Toscana Centro - SOC Oncoematologia
    Florence, Italy
    Not yet recruiting
  • Azienda Ospedaliera Universitaria Careggi - Unità funzionale di Ematologia
    Florence, Italy
    Not yet recruiting
  • IRCCS Policlinico S. Martino - U.O. Ematologia e terapie cellulari
    Genova, Italy
    Not yet recruiting
  • ASL Latina Ospedale S. Maria Goretti - UOC Ematologia con trapianto
    Latina, Italy
    Not yet recruiting
  • ASST Grande Ospedale Metropolitano Niguarda - S.C. Ematologia
    Milan, Italy
    Not yet recruiting
  • IRCCS Fondazione Istituto Nazionale Tumori - S.C. Ematologia
    Milan, Italy
    Not yet recruiting
  • A.O.U. Ospedale Maggiore della Carità - S.C.D.U. Ematologia
    Novara, Italy
    Not yet recruiting
  • A.O.U. di Padova - U.O.C. Ematologia
    Padova, Italy
    Not yet recruiting
  • I.R.C.C.S. Istituto Oncologico Veneto - U.O.C. Oncologia 1
    Padova, Italy
    Not yet recruiting
  • A.O. Ospedali Riuniti Villa Sofia-Cervello - Divisione di Ematologia
    Palermo, Italy
    Not yet recruiting
  • IRCCS Fondazione Policlinico S. Matteo - S.C. Ematologia 1
    Pavia, Italy
    Not yet recruiting
  • A.O. Ospedale S. Maria della Misericordia - Ematologia
    Perugia, Italy
    Not yet recruiting
  • AUSL di Piacenza Ospedale Guglielmo da Saliceto - U.O.C. Ematologia e centro trapianti
    Piacenza, Italy
    Not yet recruiting
    • Annalisa Arcari, MD · Contacta.arcari@ausl.pc.it
    • Annalisa Arcari, MD · Principal investigator
  • AUSL di Ravenna Osp. S. Maria delle Croci - U.O.C. Ematologia
    Ravenna, Italy
    Not yet recruiting
  • AUSL IRCCS Arcispedale S. Maria Nuova - S.C. Ematologia
    Reggio Emilia, Italy
    Not yet recruiting
  • A.O.U. Policlinico Umberto I - U.O.C Ematologia
    Roma, Italy
    Not yet recruiting
  • A.O.U. Sant'Andrea - U.O.C. Ematologia
    Roma, Italy
    Not yet recruiting
  • Fondazione Policlinico Campus Bio-Medico - U.O.C. Ematologia e trapianto di cellule staminali
    Roma, Italy
    Not yet recruiting
  • IRCCS Humanitas - U.O. Ematologia
    Rozzano, Italy
    Not yet recruiting
  • IRCCS Fondazione Casa Sollievo della Sofferenza - UOC Ematologia e Trapianto di Cellule Staminali Ematopoietiche
    San Giovanni Rotondo, Italy
    Not yet recruiting
  • A.O.U. Senese - U.O.C. Ematologia
    Siena, Italy
    Not yet recruiting
    • Alberto Fabbri, MD · Contactfabbri7@unisi.it
    • Alberto Fabbri, MD · Principal investigator
  • A.O. Santa Maria - S.C. Oncoematologia
    Terni, Italy
    Not yet recruiting
  • A.O.U. Città della Salute e della Scienza di Torino - S.C. Ematologia U
    Torino, Italy
    Not yet recruiting
  • A.O.U. Città della Salute e della Scienza di Torino - S.C. Ematologia
    Torino, Italy
    Recruiting
  • ULSS 2 Ospedale Ca' Foncello - U.O.C. Ematologia
    Treviso, Italy
    Not yet recruiting
  • A.S.U. Giuliano Isontina - S.C. Ematologia
    Trieste, Italy
    Not yet recruiting
  • A.S.U. Friuli Centrale - Clinica Ematologica
    Udine, Italy
    Not yet recruiting
  • A.O.U.I. di Verona - U.O.C. Ematologia
    Verona, Italy
    Not yet recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jul 2026 (actual). Primary completion is estimated for Dec 2029, 41 months after the start.

Of 27 non-industry phase 3 interventional studies under Hodgkin Disease, half reached primary completion within 81 months of starting (the median), counting those still running; a quarter within 51 and three quarters within 108. This study's planned 41 months is below that.

Counting every sponsor, half of 33 studies reached it within 75 months; a quarter within 52 and three quarters within 108.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 20, 2025
First posted
Dec 1, 2025
StartActual
Jul 10, 2026
Primary completionEst.
Dec 2029
CompletionEst.
Aug 2033
Last update
Aug 27, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07256158
Lead sponsor
Fondazione Italiana Linfomi - ETS
Responsible party
Sponsor
First posted
Dec 1, 2025
Start date
Jul 10, 2026
Primary completion
Dec 2029 (estimated)
Completion
Aug 2033 (estimated)
Last update
Aug 27, 2026

Study contacts

Uffici Studi FIL
Contact
startup@filinf.it
+390131033153
Uffici Studi FIL
Contact
gestionestudi@filinf.it
+390599769913
Umberto Ricardi, MD
principal investigator · SC Radioterapia U - AOU Città della Salute e della Scienza di Torino

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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