CanCOG®: Pilot Trial of Cognitive Rehabilitation for Cancer Survivors (CanCOG®)
2026年8月7日 更新者：Sofia Alexandra Marques Fernandes、Aveiro University
CanCOG® - Cognitive Rehabilitation in Cancer: A Protocol for a Multicenter Pilot Randomized Controlled Trial With Non-central Nervous System Cancer Survivors
Cancer-related cognitive impairment (CRCI) affects a large proportion of non-central nervous system cancer survivors and can negatively impact cognitive functioning and daily life. Cognitive rehabilitation has shown promising results in addressing these difficulties. The goal of this pilot randomized controlled trial is to evaluate the feasibility, acceptability, and preliminary efficacy of the CanCOG®- Cognitive Rehabilitation in Cancer program in Portuguese adult cancer survivors with CRCI.
Adult non-central nervous system cancer survivors (n=60) will be randomly assigned to receive either the CanCOG® intervention or treatment as usual.
CanCOG® is a structured cognitive rehabilitation program designed to help cancer survivors manage cognitive difficulties through cognitive training exercises, psychoeducation, and compensatory strategy training. The program consists of six weekly sessions of 1 hour and 30 minutes each, delivered over six consecutive weeks. Sessions are administered in person in small groups (3-9 participants) and are led by a trained professional.
The main focus of the study is to assess feasibility outcomes, including recruitment, retention, adherence to the intervention, and completion of study assessments, as well as acceptability and participant satisfaction.
The study will also explore preliminary effects of the intervention on cognitive functioning (both perceived and objective), symptoms of anxiety and depression, and quality of life. Participants will complete assessments at baseline (2 weeks after the intervention), 2 weeks after the intervention, and at 3- and 6-month follow-ups. Some participants (10-15) will also take part in interviews to provide feedback on their experience with the program.
調査の概要
状態
まだ募集していません
詳細な説明
Cancer-related cognitive impairment (CRCI) is a frequent consequence of cancer and its treatments in non-central nervous system survivors and has been associated with persistent difficulties in multiple cognitive domains, including attention, memory, and executive functioning.
Cognitive rehabilitation approaches aim to improve cognitive functioning and promote the use of compensatory strategies to support daily functioning in individuals experiencing CRCI. The CanCOG® program is a structured group-based cognitive rehabilitation intervention delivered by trained professionals and incorporating cognitive training exercises, psychoeducation, and strategy training.
This study is a pilot randomized controlled trial designed to inform the feasibility and acceptability of the intervention and study procedures, as well as to provide preliminary evidence regarding potential intervention effects.
The intervention consists of six weekly in-person group sessions (1 hour and 30 minutes each), delivered over six consecutive weeks in small groups of 3 to 9 participants.
Outcomes will be assessed using a comprehensive neuropsychological and psychosocial evaluation battery covering global cognition, memory, attention, executive functioning, psychological distress, and quality of life, using validated instruments. Assessments will be conducted at baseline, post-intervention, and at 3- and 6-month follow-up time points.
Data will be collected in Portuguese healthcare units. The study has been submitted to and approved by the relevant Ethics Committee, and complies with the General Data Protection Regulation (GDPR).
研究の種類
介入
入学 (推定)
60
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究連絡先
- 名前：Sofia A Marques-Fernandes, M.Sc.
- 電話番号：00351 965252831
- メール：sofiafernandes6@ua.pt
研究場所
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Aveiro、ポルトガル、3810-193
- University of Aveiro
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コンタクト：
- Sofia A Marques-Fernandes, M.Sc.
- 電話番号：00351965252831
- メール：sofiafernandes6@ua.pt
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主任研究者：
- Sofia A Marques-Fernandes, M.Sc.
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
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
いいえ
説明
Inclusion Criteria:
- Adults aged 18 to 65 years whose native language is European Portuguese;
- Diagnosis of cancer not involving the central nervous system (non-CNS cancer);
- Disease stage I to III;
- Completion of primary cancer treatment at least 6 months and no more than 5 years prior to enrollment (with the exception of ongoing hormone therapy and immunotherapy);
- Score < 51 on the Perceived Cognitive Abilities subscale of the FACT-Cog v3. Stable psychiatric and neurological medication regimen for at least 3 months prior to enrollment;
- Educational level equal to or higher than the 3rd year of primary education;
- Ability to read and write in Portuguese and provide informed consent to participate.
Exclusion Criteria:
- Diagnosis of current severe psychiatric disorders (e.g., schizophrenia, psychosis, bipolar disorder, major depressive disorder, or attention-deficit/hyperactivity disorder);
- Diagnosis of communication disorders;
- Diagnosis of neurodevelopmental disorders or other severe medical conditions (e.g., history of stroke, encephalitis, dementia or neurodegenerative disease, epilepsy, or traumatic brain injury);
- Presence of metastases or other tumors;
- History of substance abuse (alcohol or drugs);
- Current or prior participation in another cognitive rehabilitation intervention.
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
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 |
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実験的：Cognitive rehabilitation intervention
Participants allocated to this arm will receive the CanCOG® cognitive rehabilitation intervention in addition to usual care.
Following baseline assessment (2 weeks before the intervention), participants will attend the intervention over a 6-week period and complete study assessments 2 weeks after the intervention and at 3- and 6-month follow-up time points.
Participants will be asked to complete neuropsychological and psychosocial assessments at each evaluation point.
A subset of participants (10-15) may also be invited to participate in a semi-structured interview to explore the acceptability of the intervention, perceived benefits, barriers to participation, and overall satisfaction with the program and study procedures.
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CanCOG® is a structured cognitive rehabilitation program designed for cancer survivors experiencing cancer-related cognitive impairment (CRCI).
The intervention is delivered in person in small groups of 3 to 9 participants by a trained professional and consists of six weekly sessions of 90 minutes each over six consecutive weeks.
The program combines psychoeducation about CRCI, cognitive training exercises targeting domains such as attention, memory, and executive functioning, and compensatory strategy training to support everyday cognitive functioning and self-management of cognitive difficulties.
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介入なし：Treatment-as-usual
Participants allocated to this arm will continue to receive the usual care and support available through their healthcare providers and will not receive the CanCOG® intervention during the study period.
Participants will complete the same schedule of neuropsychological and psychosocial assessments as the intervention group at baseline, post-intervention, and at 3- and 6-month follow-up time points.
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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 |
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Feasibility - Screening rate
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups.
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Screening rate will be assessed as the proportion of potentially eligible cancer survivors who undergo eligibility screening.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups.
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Feasibility - Eligibility rate
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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The eligibility rate will be assessed as the proportion of screened individuals who meet the eligibility criteria.
Reasons for ineligibility will be documented whenever available.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Feasibility - Consent rate
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups.
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Consent rate will be assessed as the proportion of eligible individuals who provide informed consent.
Reasons for refusal to participate will be documented whenever available.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups.
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Feasibility - Retention rate
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Retention rate will be assessed as the proportion of participants who remain enrolled until study completion.
Reasons for withdrawal will be documented whenever available.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Feasibility - Assesment completion rate
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Assessment completion rate will be assessed as the proportion of participants completing assessments at each assessment time point.
Reasons for missed assessments will be documented whenever available.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Feasibility - Intervention adherence
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Intervention adherence will be assessed as the proportion of intervention sessions attended by participants allocated to the intervention group.
Reasons for missed sessions will be documented whenever available.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Feasibility - Intervention fidelity
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Intervention fidelity, the extent to which the intervention is delivered according to the intervention manual and session plans, will be assessed through facilitator-completed fidelity checklists.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups
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Acceptability - Participant retention and intervention adherence
時間枠：Baseline ( 2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Acceptability of the intervention will be assessed using participant retention (proportion of participants who remain enrolled until study completion) and intervention adherence (proportion of intervention sessions attended by participants allocated to the intervention group).
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Baseline ( 2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Acceptability - Qualitative feedback
時間枠：Post-intervention (2 weeks after)
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Acceptability will be assessed through semi-structured interviews conducted with 10-15 participants from the intervention group. Interviews will explore participants' perceptions of the intervention content, format, duration, group delivery, perceived usefulness, and barriers or facilitators to participation. |
Post-intervention (2 weeks after)
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Acceptability - ACRIS-CS
時間枠：Baseline (2 weeks before intervention) and post-intervention (2 weeks after).
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Acceptability will also be assessed through the Acceptability of Cognitive Rehabilitation Interventions Survey-Cancer Survivors (ACRIS-CS).
This 11-item instrument evaluates participants' perceptions of the intervention's acceptability, including its perceived usefulness, appropriateness, and overall satisfaction.
Higher scores indicate greater acceptability of the cognitive rehabilitation intervention.
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Baseline (2 weeks before intervention) and post-intervention (2 weeks after).
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
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Perceived cognitive functioning
時間枠：Baseline (2 weeks before intervention), post-intervention (2weeks after), 3-month and 6-month follow-ups.
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Perceived cognitive functioning will be assessed with the Functional Assessment of Cancer Therapy-Cognitive Function version 3 (FACT-Cog v3).
It consists of a 37-item self-report questionnaire composed of four subscales: Perceived Cognitive Impairments (CogPCI), Perceived Cognitive Abilities (CogPCA), Comments from Others (CogOth), and Impact on Quality of Life (CogQoL).
The higher the score, the better the perceived functioning.
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Baseline (2 weeks before intervention), post-intervention (2weeks after), 3-month and 6-month follow-ups.
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Objective cognitive functioning (Global cognition)
時間枠：Baseline (2 weeks before intervention), Post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Global cognition will be assessed using the Montreal Cognitive Assessment (MoCA).
The instrument's scores range from 0 to 30, with lower scores indicating poorer cognitive performance.
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Baseline (2 weeks before intervention), Post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Objective cognitive functioning (Verbal learning and memory)
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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The test includes immediate recall across five learning trials, delayed recall after 30 minutes, and a recognition trial, allowing the assessment of acquisition, retention, and recognition processes.
Lower scores indicate poorer performance.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Objective cognitive functioning (Attention and processing speed)
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Attention and processing speed will be assessed with the Trail Making Test Part A (TMT-A) and D2 Test of Attention. TMT- A: Performance is based on completion time and errors. Higher adjusted scores correspond to better performance. D2 Test of Attention: The scoring of this test provides the following results: Total Characters Processed, Total Correct Responses, Total Efficiency and Concentration Index. Higher scores suggest better performance. |
Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Objective cognitive functioning (Executive functioning and cognitive flexibility)
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Executive functioning and cognitive flexibility will be assessed using the Trail Making Test Part B (TMT-B).
Performance is based on completion time and errors.
Higher adjusted scores correspond to better performance.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Objective cognitive functioning (Working memory)
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Working memory will be assessed using the Wechsler Adult Intelligence Scale's (WAIS) - Digit Span subtest.
It consists of three components: Digit Span forward, Digit Span Backward, and Digit Span sequencing.
Higher scores indicate better performance.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Objective cognitive functioning (Verbal fluency)
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Verbal fluency will be assessed with the Verbal Fluency Test (VFT).
For the VFT, participants are required to remember, in one minute, the maximum number of words possible started by a specific letter or belonging to a specific category.
A higher number of words recalled indicates better cognitive performance.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Objective cognitive functioning (Inhibitory control)
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Inhibitory control will be assessed with the Stroop Color and Word Test.
It consists of three tasks: reading words, naming colors, and identifying the color in which each word is written, regardless of the word's meaning.
The performance is scored as the number of correct responses completed within the specified time for each condition.
Higher scores indicate better performance.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Anxiety Symptoms
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups.
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Anxiety symptoms will be assessed using the Generalized Anxiety Disorder Scale (GAD-7).
It consists of seven items evaluating the presence of anxiety-related symptoms.
Scores range from zero to 21, with higher scores indicating greater anxiety severity.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-ups.
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Depressive Symptoms
時間枠：Baseline (2 weeks before intervention) , post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Depressive symptoms will be assessed using the Patient Health Questionnaire-9 (PHQ-9), a 9-item self-report measure of depression severity based on DSM criteria.
Total scores range from 0 to 27, with higher scores indicate more severe depressive symptoms.
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Baseline (2 weeks before intervention) , post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Health-related quality of life
時間枠：Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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Health-related quality of life will be assessed using a validated cancer-specific quality of life questionnaire, the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire, version 3 (EORTC QLQ-C30, version 3).
The EORTC QLQ-C30, is a 30-item instrument including global health status/quality of life, functional, and symptom scales.
Scores range from 0 to 100, with higher scores indicating better functioning/global quality of life and worse symptom burden on the symptom scales.
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Baseline (2 weeks before intervention), post-intervention (2 weeks after), and 3-month and 6-month follow-up.
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
出版物と役立つリンク
研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。
一般刊行物
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研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (推定)
2026年9月1日
一次修了 (推定)
2027年6月1日
研究の完了 (推定)
2028年5月1日
試験登録日
最初に提出
2026年7月29日
QC基準を満たした最初の提出物
2026年8月7日
最初の投稿 (実際)
2026年8月10日
学習記録の更新
投稿された最後の更新 (実際)
2026年8月10日
QC基準を満たした最後の更新が送信されました
2026年8月7日
最終確認日
2026年8月1日
詳しくは
本研究に関する用語
その他の研究ID番号
- 2023.03752.BD (その他の助成金/資金番号：Foundation for Science and Technology)
- https://doi.org/10.54499/2023 (その他の識別子：Foundation for Science and Technology)
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
いいえ
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
いいえ
米国FDA規制機器製品の研究
いいえ
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。