A Study on the Consistency Evaluation of Digital PCR Technology for Quantitative Detection of HBV Nucleic Acid
2026年7月3日 更新者：Minghui Li、Beijing Municipal Administration of Hospitals
A Study on the Consistency Evaluation of Digital PCR Technology for Quantitative Detection of Hepatitis B Virus Nucleic Acid
The research plan aims to evaluate the consistency of the digital PCR-based hepatitis B virus nucleic acid quantification technique with the existing Roche qPCR-based detection method.
Approximately 200 samples of residual serum from patients with chronic hepatitis B, covering high, medium, low, and those below the Roche lower limit concentration or undetectable, will be collected.
The two methods will be used for parallel testing.
The main objective is to evaluate the quantitative consistency of the two methods within the quantifiable range of Roche (≥ 20 IU/mL); the secondary objectives include evaluating the qualitative detection rate of samples with concentrations below 20 IU/mL or undetectable nucleic acid.
調査の概要
詳細な説明
The study aims to include a total sample size of approximately 200 cases: 100 positive cases: ≥ 1000 IU/mL: 40 cases; 100 - 1000 IU/mL: 30 cases; 20 - 100 IU/mL: 30 cases; 100 negative cases: lower than 20 IU/mL: 40 cases, and undetected: 60 cases.
Collect the age, gender, duration of HBV infection, antiviral treatment drugs and treatment courses, HBeAg status, HBsAg quantification (if available), ALT/AST levels, date of blood sample collection, date and result of combas HBV DNA detection, and digital PCR detection results of the enrolled patients.
By comparing the detection results of the two methods, evaluate the quantitative accuracy or qualitative detection ability of the digital PCR hepatitis B detection method.
研究の種類
観察的
入学 (推定)
200
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
-
-
Beijing Municipality
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Beijing、Beijing Municipality、中国、100015
- Beijing Ditan Hospital, Capital Medical University
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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
サンプリング方法
確率サンプル
調査対象母集団
The research samples were derived from the routine diagnostic leftover serum samples of chronic hepatitis B patients who were treated at the outpatient or inpatient departments of Beijing Ditan Hospital, Capital Medical University.
All the samples were the leftover samples obtained after the routine HBV DNA testing (combas HBV) was completed, and they were the secondary utilization of the leftover samples from clinical routine tests.
説明
Inclusion Criteria:
- Patients who have been diagnosed with chronic hepatitis B (in accordance with the diagnostic criteria of the "Chronic Hepatitis B Prevention and Treatment Guidelines (2022 Edition)") and are currently receiving NAs antiviral treatment for ≥ 6 months or have not received treatment and are ≥ 18 years old;
- Remaining samples (serum) that have undergone combas HBV DNA testing and have clear test results, with the sample collection time frozen for ≤ 6 months;
- The remaining sample volume is sufficient (≥ 1.0 mL), sufficient for digital PCR testing and necessary duplicate testing;
- Samples from the same patient at different time points can be included as independent samples, but the sampling interval time needs to be recorded.
Exclusion Criteria:
- Combine other liver virus infections such as HCV, HDV or HIV;
- Poor sample quality, such as severe hemolysis, lipemia or repeated freezing and thawing ≥ 3 times;
- The samples were not properly frozen and stored (-80℃) after collection or the temperature records were missing;
- The clinical information is severely lacking, making it impossible to confirm the diagnosis and treatment status;
- The duplicate samples already included at the same time point (only the first included sample is retained).
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
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
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High-concentration group
After detection using digital PCR technology, the results were classified according to concentration levels as follows: high concentration group (≥ 1000 IU/mL); medium concentration group (100 - 1000 IU/mL); low concentration group (20 - 100 IU/mL); extremely low concentration group (below 20 IU/mL); undetectable group.
|
the results were classified according to concentration levels
|
|
medium concentration group
After detection using digital PCR technology, the results were classified according to concentration levels as follows: high concentration group (≥ 1000 IU/mL); medium concentration group (100 - 1000 IU/mL); low concentration group (20 - 100 IU/mL); extremely low concentration group (below 20 IU/mL); undetectable group.
|
the results were classified according to concentration levels
|
|
low concentration group
After detection using digital PCR technology, the results were classified according to concentration levels as follows: high concentration group (≥ 1000 IU/mL); medium concentration group (100 - 1000 IU/mL); low concentration group (20 - 100 IU/mL); extremely low concentration group (below 20 IU/mL); undetectable group.
|
the results were classified according to concentration levels
|
|
extremely low concentration group
After detection using digital PCR technology, the results were classified according to concentration levels as follows: high concentration group (≥ 1000 IU/mL); medium concentration group (100 - 1000 IU/mL); low concentration group (20 - 100 IU/mL); extremely low concentration group (below 20 IU/mL); undetectable group.
|
the results were classified according to concentration levels
|
|
undetectable group
After detection using digital PCR technology, the results were classified according to concentration levels as follows: high concentration group (≥ 1000 IU/mL); medium concentration group (100 - 1000 IU/mL); low concentration group (20 - 100 IU/mL); extremely low concentration group (below 20 IU/mL); undetectable group.
|
the results were classified according to concentration levels
|
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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quantitative consistency
時間枠："Baseline, single cross-sectional testing at sample collection, through study completion"
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Evaluate the quantitative consistency of the self-developed digital PCR (ddPCR) method with the Roche Cobas TaqMan HBV DNA test (cobas HBV) within the quantifiable range (≥ 20 IU/mL)
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"Baseline, single cross-sectional testing at sample collection, through study completion"
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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。
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8月1日
一次修了 (推定)
2028年8月1日
研究の完了 (推定)
2028年8月1日
試験登録日
最初に提出
2026年6月29日
QC基準を満たした最初の提出物
2026年6月29日
最初の投稿 (実際)
2026年7月6日
学習記録の更新
投稿された最後の更新 (実際)
2026年7月7日
QC基準を満たした最後の更新が送信されました
2026年7月3日
最終確認日
2026年7月1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
- DTEC-KY2026-075-01
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
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