PRESTO: A Phase III Randomised Controlled Trial of Dose-escalated Proton Beam Therapy Versus Standard of Care Radiotherapy for Functioning Pituitary Tumours (PRESTO)
The goal of this clinical trial is to evaluate whether a higher dose of radiotherapy can lead to better outcomes for participants with functioning pituitary tumours. The main question it aims to answer is whether a greater proportion of participants will achieve normal hormone levels with the higher dose of proton beam radiotherapy than with standard radiotherapy treatment doses.
Following randomisation, participants will receive approximately 6 weeks of either standard dose radiotherapy (intensity-modulated radiation therapy or proton beam therapy, depending on age) OR escalated dose proton beam therapy. Following this, participants will be followed up for at least 2 years to monitor their condition. This includes pituitary, hormone level, tumour, neurocognitive, and ophthalmology assessments, as well as patient-reported quality of life outcomes and health economic measures.
調査の概要
状態
研究の種類
入学 (推定)
段階
- フェーズ 3
連絡先と場所
研究連絡先
- 名前:PRESTO Trial Manager
- 電話番号:+44 (0)20 7679 9860
- メール:ctc.presto@ucl.ac.uk
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Neuropathological confirmation of growth hormone (acromegaly) or ACTH (Cushing's disease) secreting pituitary adenoma after neurosurgical intervention.
- Ongoing hormonal hypersecretion as defined by local and age-specific normal range values without hormone supressing medication (may need washout).
- Multidisciplinary team meeting recommendation for fractionated radiotherapy.
- Karnofsky performance status ≥70.
- Age ≥18 years.
- Agreement to travel to a proton beam therapy centre (i.e. UCLH or The Christie) as required.
- Written informed consent.
- Agreement to be followed up at a local PRESTO trial site.
Exclusion Criteria:
- Women who are pregnant or breast feeding.
- Prior cranial or head and neck radiotherapy treatment, including Stereotactic radiosurgery (SRS).
- Unsuitability or intolerability of MRI scans.
- Severe active comorbidities that limit compliance with trial requirements.
- Prior invasive malignancy unless disease free interval of ≥3 years.
- Unable to travel to the PBT centres as per trial requirements.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
アクティブコンパレータ:Standard dose radiotherapy
Standard dose: 1.8Gy per fraction over 28 fractions.
|
Standard dose IMRT (1.8Gy per fraction)
Standard dose PBT (1.8Gy per fraction)
|
|
実験的:Escalated dose proton beam therapy
Escalated dose: 2Gy per fraction over 28 fractions. - Participants will receive escalated dose Proton Beam Therapy (PBT). |
Escalated dose PBT (2Gy per fraction)
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Time to normalisation of hormone levels
時間枠:From randomisation until normalisation (occurring within 2 years after completion of treatment).
|
Time to normalisation of hormone levels (i.e.
growth hormone (GH) or insulin growth factor 1 (IGF-1)) following randomised treatment
|
From randomisation until normalisation (occurring within 2 years after completion of treatment).
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Radiological treatment response
時間枠:From baseline until 24 months after completion of treatment.
|
Data from MRI scans assessed for rates of stability, regression, and.
progression.
Overall response rate will be presented.
|
From baseline until 24 months after completion of treatment.
|
|
Radiological progression-free survival (PFS)
時間枠:From randomisation until progression (up to 2 years after completion of treatment) or death.
|
Progression-free survival (progression determined from an MRI scan).
|
From randomisation until progression (up to 2 years after completion of treatment) or death.
|
|
Medical therapies for hormone excess
時間枠:From randomisation to completion of trial participation (2 years after completion of treatment)
|
The number and proportion of participants requiring new/changes to medical therapy for hormone excess at each visit.
|
From randomisation to completion of trial participation (2 years after completion of treatment)
|
|
Changes to hormone levels
時間枠:From randomisation to completion of trial participation (2 years after completion of treatment)
|
Hormone levels relevant to the participant's disease (e.g.
growth hormone [GH]) will be measured at each trial visit, summarised, and compared over time between treatment arms.
|
From randomisation to completion of trial participation (2 years after completion of treatment)
|
|
Safety and toxicity
時間枠:Between randomisation and 6 months after completion of treatment for early toxicities, and until 2 years after completion of treatment for late toxicities.
|
Adverse events, assessed by CTCAE criteria v6.0.
|
Between randomisation and 6 months after completion of treatment for early toxicities, and until 2 years after completion of treatment for late toxicities.
|
|
Quality of life (CushingQoL/AcroQoL)
時間枠:From baseline until 24 months post completion of treatment.
|
Quality of life (QoL) using either the CushingQoL/AcroQoL (as applicable depending on participant's condition) questionnaire.
|
From baseline until 24 months post completion of treatment.
|
|
Quality of Life (EQ-5D-5L)
時間枠:From baseline until 24 months post completion of treatment.
|
Quality of Life (QoL) using results of participant-reported EQ-5D-5L questionnaires.
|
From baseline until 24 months post completion of treatment.
|
|
Pituitary insufficiency rates
時間枠:From baseline until 24 months after completion of treatment.
|
Pituitary insufficiency rates (i.e.
Growth hormone (GH), Adrenocorticotropic hormone (ACTH), Thyroid-Stimulating Hormone (TSH), Gonadotrophin, and Arginine Vasopressin (AVP) deficiencies) will be summarised and compared between arms.
|
From baseline until 24 months after completion of treatment.
|
|
Neurocognitive function and Neuro-ophthalmology outcomes
時間枠:From randomisation until 24 months after completion of treatment
|
From randomisation until 24 months after completion of treatment
|
その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Health Economic Evaluation
時間枠:From 6 months prior to baseline until 2 years after completion of trial treatment.
|
The health economic analysis will calculate the mean incremental cost per quality-adjusted life-years (QALYs) gained on using dose-escalated proton beam therapy compared to standard dose radiotherapy.
|
From 6 months prior to baseline until 2 years after completion of trial treatment.
|
協力者と研究者
捜査官
- 主任研究者:Michael Kosmin、UCLH NHS Trust
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- UCL/181514
- NIHR168012 (その他の助成金/資金番号:National Institute for Health and Care Research (NIHR))
- 369251 (その他の識別子:IRAS)
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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