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RecruitingNCT05142982Updated Feb 11, 2025

Radiotherapy Vs Observation for Post Chemotherapy Residual Mass in Advanced Seminoma

An interventional study of Radiotherapy in Seminoma, sponsored by Tata Memorial Centre. Recruiting at 2 sites in India. Open to male participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-02-11.

Sponsored by Tata Memorial Centre · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2021; still recruiting 4 years 11 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
74
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
Male
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Study summary

Testicular tumors account for 1% of all cancers in males and germ cell tumors comprise 95% of all testicular cancers. Seminomas consist of around 50% of cases. However,adequate information is not there as 60- 80% residual disease is seen even after with the standard management of chemotherapy.

With the advent of functional imaging there was hope that it could aid in more accurately targeting these tumors to systematically evaluate the role of PET-CT imaging in identifying patients diagnosed with stage IIB-IIIC seminomatous germ cell tumor, with residual visible tumor post chemotherapy who would benefit with loco regional radiotherapy.

The therapeutic research in Seminomashas been relatively slow and such structured studies can allow analysis of large number of patients to report on acute and late effect of treatment outcomes using CTCAE and QOL (EORTC QLQ C-30) in these cancers. We hope that we will get help in identifying thrust areas for future research through this study.

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Conditions studied

  • Seminoma

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Keywords

  • FDG-PET CT, radiotherapy
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In context

Seminoma

63 studies on the registry are indexed under Seminoma; 15 are open to participants now.

This study's planned enrollment of 74 is above the median of 50 across 47 interventional studies indexed under Seminoma.

Browse Seminoma studies →

Lead sponsor

Tata Memorial Centre is the lead sponsor of 64 studies on the registry; 42 are open to participants now.

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

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
Male
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

  1. Histological diagnosis of classical seminoma
  2. Primary site - testis, mediastinum or retroperitoneum
  3. Stage IIB-IIIC (AJCC 8th edition)
  4. Age>18 years
  5. Performance Status at least 70
  6. A response assessment FDG PETCT scan done at least twelve weeks after the chemotherapy, showing a persistent measurable residual mass
  7. Patient willing and reliable for follow up and QOL.

Exclusion criteria

Exclusion Criteria:

  1. Histology other than classical seminoma
  2. Non completion of planned chemotherapy
  3. Prior history of radiotherapy to the involved region
  4. Inability to deliver adequate radiotherapy dose safely based on assessment by radiation oncologist
Terms in these criteria, in plain language(2)

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.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
74 participants (estimated)

Study arms

  • Experimental
    Radiotherapy

    Patients randomized to the test arm will undergo radiotherapy to the residual mass. Patients will be stratified by the size of the residual mass in shortest dimension being \<3 cm or \> 3 cm.A dose of 30-36 Gy in conventional fractionation of 1.8-2.0 Gy per fraction using 3-dimensional conformal technique. Radiotherapy will be delivered five days a week.

    Radiation: Radiotherapy

  • No intervention
    Observation

    Patients randomized to the standard arm will be observed and the status of residual mass monitored with an FDG PETCT scan done at three to six monthly intervals.

Interventions

  • RadiationRadiotherapy

    A dose of 30-36 Gy in conventional fractionation of 1.8-2.0 Gy per fraction using 3-dimensional conformal technique. Radiotherapy will be delivered five days a week.

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What researchers measure

Primary outcomes

  1. Progression free survival(PFS)

    • Progression free survival (PFS) is defined as the time period from the date of enrolment in the study till the first observation of disease progression at any site, or death.

    Time frame: 2 years

Secondary outcomes

  1. Locoregional control (LRC)

    • Locoregional control (LRC) defined as the time period from the date of enrolment in the study till the first observation of disease progression locally and/or in the regional lymph nodes, or death.

    Time frame: 2 years

  2. Overall survival (OS)

    • Overall survival (OS) defined as the time period from the date of enrolment in the study till the date of death.

    Time frame: 2 years

  3. Second-line salvage therapy-free survival

    • Second-line salvage therapy-free survival defined as the time period from the date of enrolment in the study till date of starting second-line chemotherapy.

    Time frame: 2 years

  4. Acute radiation toxicity

    Incidence of Acute radiation toxicity will be defined as any toxicity within 90 days post RT using RTOG and CTCAE

    Time frame: 2 years

  5. Late radiation toxicity

    Incidence of late radiation toxicity defined as any toxicity after 90 days of post RT using RTOG and CTCAE

    Time frame: 2 years

  6. Patient-reported quality of life (QOL)

    Patient-reported quality of life (QOL) will be assessed using the EORTC QLQ-C30 questionnaire's validated translations in English, Hindi, and Marathi.

    Time frame: 2 years

07

Study locations

1 of 2 sites recruiting
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 11, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05142982
Lead sponsor
Tata Memorial Centre
Responsible party
Dr Vedang Murthy (Professor, Tata Memorial Centre) — Principal investigator
First posted
Dec 3, 2021
Start date
Dec 1, 2021
Primary completion
Dec 15, 2029 (estimated)
Completion
Dec 15, 2029 (estimated)
Last update
Feb 11, 2025

Oversight

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

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No contact was published for this record. The registry link below has the sponsor’s details.

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