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クロロフィリンの有無にかかわらず、TNT における SCRT (SCOTCH)

2026年9月18日 更新者:Tata Memorial Centre

クロロフィリンを使用または使用しない短期放射線療法ベースの完全術前補助療法 (SCOTCH 研究)

The goal of this clinical trial is to see, if addition of chlorophyllin to neoadjuvant Chemo-radiotherapy can reduce the gastro-intestinal/genitourinary/hematological toxicity rates and improve the quality of life in patient's diagnosed with locally advanced rectal cancer.

This is a randomized placebo control trial, wherein participants randomized to Chlorophyllin arm will receive the drug of interest along with the standard treatment. Participants randomized to other arm will receive placebo along with the standard treatment.

Researchers will compare the difference between the outcomes from both the arms and will also observe the non-operative management success rates.

調査の概要

状態

積極的、募集していない

条件

介入・治療

詳細な説明

The current standard treatment for locally advanced rectal cancer includes neoadjuvant (treatment given before Surgery) radiotherapy & chemotherapy followed by surgery if needed or wait and watch in patients whom tumour has completely regressed. It has been observed that even after receiving this intensive treatment patients, almost 70% of patients develop acute toxicity (during or within 3 months) of grade 2 or higher (needing medication for toxicity). This affects their treatment tolerance, completion and quality of life.

In this study Researchers are going to see if addition of drug Chlorophyllin (derived from green plant leaves) along with standard treatment would help in reducing the acute toxicity. Chlorophyllin is present in all green leaves of plants giving them green color. The drug is derived from green plant leaves. As it is a plant-based product it is safe for humans and has no known side effects of its own. This is a randomized study which has two arms; Arm 1 is test arm where participants will receive drug of interest (Chlorophyllin) and in other arm participants will receive Placebo. Upon successful completion of study, outcomes from both the study arm will be compared and participants will be followed by standard protocol for 3 years.

研究の種類

介入

入学 (実際)

76

段階

  • フェーズ2

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。

研究場所

    • Maharashtra
      • Mumbai、Maharashtra、インド、400012
        • Tata Memorial Hospital
      • Navi Mumbai、Maharashtra、インド、410210
        • Advanced Centre for Treatment, Research and Education in Cancer (ACTREC)

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

18年~90年 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Age > 18 years.

  • Histologically confirmed diagnosis of adenocarcinoma of the rectum.

  • Clinical Stage II/III (T2-3, 4b: adherent to prostate, SV or post vagina but not grossly invading, N0-2) based on MRI.

  • Non-circumferential tumours with craniocaudal length <7 cm

  • The tumours of the lower rectum, or starting up to 7 cm from the anal verge.

  • No evidence of distant metastases on CT Chest and Abdomen.

  • No prior pelvic radiation therapy

  • No prior chemotherapy or surgery for rectal cancer

  • Eastern Cooperative Oncology Group (ECOG) Performance status 0-2

  • Patients must read, agree to, and sign a statement of Informed Consent prior to participation in this study.

  • Eligible to receive one of the options of standard neoadjuvant chemotherapy as determined by the medical oncologist team.

    • Absolute neutrophil count (ANC) > 1.5 cells/mm3, hemoglobin (HGB) > 8.0 gm/dl, platelet (PLT) > 150,000/mm3.
    • Total bilirubin ≤ 1.5 x ULN (except in patients with Gilbert's Syndrome who must have total bilirubin ≤ 3.0 x ULN), aspartate aminotransferase (AST) ≤ 3 x ULN, alanine transaminase (ALT) ≤ 3 x ULN.

Exclusion Criteria:

  • Signet or mucinous histology cancer of rectum
  • Recurrent rectal cancer or previous pelvic radiotherapy
  • Primary unresectable rectal cancer.
  • Creatinine level greater than 1.5 times the upper limit of normal.
  • Patients who are unable to undergo an MRI.
  • Patients with a history of any arterial thrombotic event within the past 6 months. This includes angina (stable or unstable), MI, TIA, or CVA.
  • Ulcerative colitis or any other histologically confirmed inflammatory bowel disease.
  • Patients with a history of venous thrombotic episodes such as deep venous thrombosis, and pulmonary embolism occurring more than 6 months prior to enrollment may be considered for protocol participation, provided they are on stable doses of anticoagulant therapy. Similarly, patients who are anticoagulated for a trial fibrillation or other conditions may participate, provided they are on stable doses of anticoagulant therapy.
  • Patients with any other concurrent medical or psychiatric condition or disease which, in the investigator's judgment, would make them inappropriate candidates for entry into this study.
  • Poor reliability for follow up.
  • Ineligible as per eligibility criteria

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:順次割り当て
  • マスキング:4倍

武器と介入

参加者グループ / アーム
介入・治療
実験的:Chlorophyllin

Drug name: Sodium Copper Chlorophyllin Dosage form: Tablet Dosage: 750 mg Route of administration: Oral Frequency: Once daily in the morning before food. Duration: From 10-14 days before radiotherapy up to 3 months after the last dose of cytotoxic therapy

Additional Chlorophyllin tablet with Short Course radiotherapy based total neoadjuvant treatment +/- brachytherapy boost dose

プラセボコンパレーター:Placebo

Drug Name: Placebo Dosage form: 1 Tablet Route of administration: Oral Frequency: Once daily in the morning before food. Duration: From 10-14 days before radiotherapy up to 3 months after the last dose of cytotoxic therapy

Additional Placebo tablet with Short Course radiotherapy based total neoadjuvant treatment +/- brachytherapy boost dose

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
Acute Toxicity
時間枠:3 months post-last cytotoxic therapy.

Incidence of grade 2 or higher Common Terminology Criteria for Adverse Events (CTCAE) acute gastro-intestinal (GI)/genitourinary (GI)/haematological toxicity (HT) in advanced rectal cancer.

Minimum value: Grade 1 Maximum value: Grade 5 Grade 1 late toxicity means a good outcome. Grade 2 or higher late toxicity means a worse outcome.

3 months post-last cytotoxic therapy.

二次結果の測定

結果測定
メジャーの説明
時間枠
Overall successful complete response rates
時間枠:3 years

To estimate the 3-year overall complete response rates (clinical or pathological) and complete clinical response (cCR) at 24-36 weeks post TNT in whole cohort and if any difference between chlorophyllin and control arms.

3 years
Organ preservation rates
時間枠:3 years

To estimate the 3-year organ preservation rates, TME free survival and if any difference between chlorophyllin & control arms.(by estimating patients who did not need surgery for rectal cancer (Total mesorectal excision; TME) at two years and if any difference between chlorophyllin and control arms.)

3 years
Disease free survival
時間枠:3 years

To estimate the 3-year disease free survival, Distant metastasis free survival, loco-regional failure free survival, and overall survival rates in the whole cohort, and if any difference between two arms and between patients with successful non-operative management versus others.

3 years
Treatment related early and late toxicities
時間枠:2 years

To compare treatment-related early and late toxicities (grade 2 Common Terminology Criteria for Adverse Events, version 5.0) for two years between the groups as (3).

Minimum value: Grade 1 Maximum value: Grade 5 Grade 1 late toxicity means a good outcome. Grade 2 or higher late toxicity means a worse outcome.

2 years
Estimation of surgical complications
時間枠:30 days post surgery

To estimate surgical complications based on Clavien-Dindo classification. Minimum value: Grade 1 Maximum value: Grade 5 Grade 1 surgical complications means a good outcome. Grade 2 or higher surgical complications means a worse outcome.

30 days post surgery
Health related quality of life
時間枠:2 years

To estimate and compare Health Related Quality of Life (QOL) between various groups as (3). (using quality of life questionnaires (QLQ) of European Organization for Research and Treatment of Cancer (EORTC)) These questionnaires will be filled by patient at six month interval of follow up.

2 years
Cost benefit with reduction in toxicity
時間枠:2 years

The direct cost of per patient for various supportive medications, hospital admissions will be estimated in both arms and compared to see if any financial benefit of reduction in toxicity.

Record of medicines and details of hospitalization will be maintained.

2 years
Tumor Volume reduction kinetics
時間枠:2 years

To study the correlation of tumour volume with used radiotherapy doses leading to a successful non-operative management versus not in the study group of patients.

2 years
To evaluate the timeline of Occurence
時間枠:3 years

To evaluate the timeline of Occurence of grade 2/3 GI toxicities (namely rectal bleeding, rectal ulcer, rectal pain, tenesmus) during SCRT based TNT.

3 years

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。

スポンサー

捜査官

  • 主任研究者:Prof. Rahul Krishnatry, M.D.、Tata Memorial Hospital

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 (実際)

2023年7月5日

一次修了 (実際)

2025年9月9日

研究の完了 (推定)

2027年9月9日

試験登録日

最初に提出

2023年4月10日

QC基準を満たした最初の提出物

2023年5月3日

最初の投稿 (実際)

2023年5月12日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月23日

QC基準を満たした最後の更新が送信されました

2026年9月18日

最終確認日

2026年9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

  • 900959

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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

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