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CardiotoxicityPROTHYMNCT04822077

Study on Proton Radiotherapy of Thymic Malignancies

A study testing Proton radiation in people with Cardiotoxicity and Pulmonary Toxicity, run by Ass. Prof. Jan Nyman at 3 sites in Sweden.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This is a multicentre non-randomized phase II study of proton beam radiotherapy in patients with thymic epithelial tumours (i.e. thymoma and thymic carcinoma) in the post-operative setting or in inoperable patients with localized disease. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Proton radiation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
3 sitesSweden
Study dates
18 Apr 2018to 1 Apr 2029
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histological or cytological diagnosis of thymoma or thymic carcinoma.
  • With radical surgery: stage III and IVa and selected stage II with type B2, B3 and thymic carcinoma according to local routine. With non-radical surgery (R1 or R2) or inoperable patient/ patient refusing surgery: stage I - IVa, any histology
  • PS WHO 0 - 2.
  • FEV1 > 1L or >40 % of predicted and CO diffusion capacity > 40% of predicted (postoperative measures)
  • Age >18 years, no upper age limit.
  • Written informed consent from patients.

Who cannot join

  • Masaoka-Koga stage IVb (distant metastases).
  • Pregnancy.
  • Serious concomitant systemic disorder incompatible with the study.
  • Tumour motion > 0.5 cm on two repeated 4DCT

Trial locations and contacts

3 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Andreas Hallqvist, MD, PhD contact

+46739845114

andreas.hallqvist@vgregion.se

Sweden3 sites, 3 recruiting
  • Department of Oncology, Sahlgrenska University Hospital

    Gothenburg, Västra Götaland County, 413 45

    Jan Nyman, Ass prof, 0046313427927, jan.nyman@oncology.gu.se

    Andreas Hallqvist, MD, PhD, +46739845114, andreas.hallqvist@vgregion.se

    Recruiting
  • Department of Oncology, Karolinska University Hospital

    Stockholm, Stockholm County, 171 76

    Signe Friesland, MD PhD, signe.friesland@sll.se

    Michael Gubanski, MD PhD, michael.gubanski@sll.se

    Not yet recruiting
  • Department of Oncology, Norrlands Universitetssjukhus

    Umeå, Norrland, 901 85

    Mikael Johansson, MD PhD, 0046703711414, mikael.johansson@onkologi.umu.se

    Per Bergström, MD PhD, per.bergstrom@vll.se

    Recruiting

Other trials in Sweden

About this study

Official title: PROTHYM - Phase II Non-randomized Study on Proton Radiotherapy Of Thymic Malignancies

This is a multicentre non-randomized phase II study of proton beam radiotherapy in patients with thymic epithelial tumours (i.e. thymoma and thymic carcinoma) in the post-operative setting or in inoperable patients with localized disease.

Patients not willing or for any reason unsuitable to undergo proton treatment will be asked to participate in a follow-up assessment after the regular photon treatment in the same manner as the included patients.

Primary endpoints are:Toxicity (e.g. cardiac and pulmonary toxicity) and Local control at 5 year Secondary endpoints: PFS, Overall survival, Quality of life, measured by EORTC QLQ 30 + LC 13 and relapse pattern

Read the detailed description

All doses are recorded in Gy(RBE).

After having checked all eligibility criteria patients will receive:

  • Patients with radical surgery and unfavourable histology (B2, B3, C) and/or Masaoka-Koga stage III, IVa: 2 Gy(RBE), once daily, five days a week to a total dose of 50 Gy(RBE).
  • Patients with non-radical surgery (R1 resection) regardless of stage and histology: 2.3 Gy(RBE), once daily, 5 days a week to a total dose of 57.5 Gy(RBE)
  • Inoperable patients regardless of stage and histology and patients with R2 non-radical resection: 2.5 Gy (RBE), once daily, 5 days a week to a total dose of 62.5 Gy(RBE)
  • Patients not willing to participate in study will receive photon therapy according to local practice (≥45 Gy)

Induction or adjuvant chemotherapy may be used according to local practice. Concomitant chemotherapy is not allowed.

Being tested
Proton radiation
Keywords
Thymoma, Thymic carcinoma, Proton radiotherapy
Medical subject headings
Cardiotoxicity, Thymus Neoplasms, Thymoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Proton radiationRadiation

    • Patients with radical surgery and unfavourable histology (B2, B3, C) and/or Masaoka-Koga stage III, IVa: 2 Gy(RBE), once daily, five days a week to a total dose of 50 Gy(RBE).
    • Patients with non-radical surgery (R1 resection) regardless of stage and histology: 2.3 Gy(RBE), once daily, 5 days a week to a total dose of 57.5 Gy(RBE)
    • Inoperable patients regardless of stage and histology and patients with R2 non-radical resection: 2.5 Gy (RBE), once daily, 5 days a week to a total dose of 62.5 Gy(RBE)
Study groups in NCT04822077
Study groupRoleWhat they receive
Proton radiotherapyExperimentalProton radiotherapy with RBE doses: * Patients with radical surgery and unfavourable histology (B2, B3, C) and/or Masaoka-Koga stage III, IVa: 2 Gy(RBE), once daily, five days a week to a total dose of 50 Gy(RBE). * Patients with non-radical surgery (R1 resection) regardless of stage and histology: 2.3 Gy(RBE), once daily, 5 days a week to a total dose of 57.5 Gy(RBE) * Inoperable patients regardless of stage and histology and patients with R2 non-radical resection: 2.5 Gy (RBE), once daily, 5 days a week to a total dose of 62.5 Gy(RBE)
Receives: Radiation: Proton radiation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cardiotoxicity and pulmonary toxicity of therapy

    Proportion of patients with cardiac and pulmonary toxicity measured by CTCAE 4.0 > Grade 2

    Measured: At 60 months from treatment

  2. Local tumor control

    Freedom from tumor progression (CR,PR or SD) mesured by CT-scan

    Measured: At 60 months from treatment

Secondary outcomes (3)
  1. Quality of life questionnaire EORTC QLQ 30 (European Organisation for Research and Treatment of Cancer)

    Scale from 1-100 for 30 items, higher score indicates a better situation.

    Measured: At 60 months from treatment

  2. Quality of life questionnaire LC13 (Lung cancer specific module of EORTC)

    Scale from 1-100 for 13 items and higher score indicates worse symptoms.

    Measured: At 60 months from treatment

  3. Survival

    Overall survival

    Measured: From treatment and for 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Mar 2021
  2. Study start18 Apr 2018
  3. Primary completion1 Apr 2026 (estimated)
  4. Study completion1 Apr 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Phase II study
Masking
None (open label)
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04822077
Sponsor's protocol ID
PROTHYM 2.2
Acronym
PROTHYM
Status last verified
Mar 2021
First submitted
11 Mar 2021
Last updated
30 Mar 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: The aim is that the study will be published in international journals. A separate publication will include result of the cardiological data The Vancouver declaration (Br Med J:296, 401-405, 1988) should be followed in all publications based on this study.

Publications

  • Chang JY, Li H, Zhu XR, Liao Z, Zhao L, Liu A, Li Y, Sahoo N, Poenisch F, Gomez DR, Wu R, Gillin M, Zhang X. Clinical implementation of intensity modulated proton therapy for thoracic malignancies. Int J Radiat Oncol Biol Phys. 2014 Nov 15;90(4):809-18. doi: 10.1016/j.ijrobp.2014.07.045. Epub 2014 Sep 24.

    PubMed 25260491
  • Gomez D, Komaki R. Technical advances of radiation therapy for thymic malignancies. J Thorac Oncol. 2010 Oct;5(10 Suppl 4):S336-43. doi: 10.1097/JTO.0b013e3181f20ea2.

    PubMed 20859129
  • Vogel J, Berman AT, Lin L, Pechet TT, Levin WP, Gabriel P, Khella SL, Singhal S, Kucharczuk JK, Simone CB 2nd. Prospective study of proton beam radiation therapy for adjuvant and definitive treatment of thymoma and thymic carcinoma: Early response and toxicity assessment. Radiother Oncol. 2016 Mar;118(3):504-9. doi: 10.1016/j.radonc.2016.02.003. Epub 2016 Feb 16.

    PubMed 26895711
  • Bjork-Eriksson T, Bjelkengren G, Glimelius B. The potentials of proton beam radiation therapy in malignant lymphoma, thymoma and sarcoma. Acta Oncol. 2005;44(8):913-7. doi: 10.1080/02841860500355983.

    PubMed 16332601

Questions about this trial

What is this clinical trial studying?

A study testing Proton radiation in people with Cardiotoxicity and Pulmonary Toxicity, run by Ass. Prof. Jan Nyman at 3 sites in Sweden.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 30 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Jan Nyman, Ass.prof. (+46313421000 ext. 27927, jan.nyman@oncology.gu.se), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cardiotoxicity and pulmonary toxicity of therapy (time frame: At 60 months from treatment). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04822077, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Mar 2021; AzTrials last refreshed its copy on 6 Nov 2026.

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