Comparing Vitamin D Results and Acceptability of Sampling Obtained From Dried Blood Spot, Tasso+ Capillary Sampling, and Venous Blood. (VitD TASSO)
Evaluation of a Capillary Self-sampling Device for Vitamin D Testing
調査の概要
詳細な説明
研究の種類
入学 (推定)
段階
- 適用できない
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:
- Adults aged 18 years or older.
- Current healthcare staff or staff volunteers.
- Already consented to use the routine dried blood spot (DBS) vitamin D service.
- Able and willing to provide all three sample types- routine DBS finger-prick sample, a Tasso+ upper-arm self-collected capillary sample, and a venous blood sample taken by a trained Trust phlebotomist.
- Able to give informed consent.
- Able to complete a short questionnaire in English.
Exclusion Criteria:
• Participants will not be able to take part if any of the following apply:
- Under 18 years of age
- Not a member of staff or staff volunteer
- Known difficulty with blood sampling, such as a history of fainting, severe needle phobia, or conditions that make venepuncture unsafe.
- Skin conditions or injuries on the upper arm that would prevent safe use of the Tasso+ device.
- Bleeding disorders or current use of anticoagulant medication that would make capillary or venous sampling unsafe.
- Inability to give informed consent, including difficulty understanding the study information.
- Inability to complete the short questionnaire in English, as this is needed to assess user experience.
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:支持療法
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- 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 |
|---|---|
|
実験的:Vitamin D sampling
Staff members having Vit D sampling using blood spot, venous samples, and sample collected using the device
|
Blood collected using Tasso device
|
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 |
|---|---|---|
|
Agreement between Tasso+ capillary serum and venous serum 25(OH)D
時間枠:From Study start date for up to 12 months
|
Continuous 25(OH)D₂ and 25(OH)D₃ concentrations (nmol/L)
|
From Study start date for up to 12 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
User acceptability
時間枠:From Study start date for up to 12 months
|
Pain, on a scale from 1-5 1= no pain. 5= worse pain |
From Study start date for up to 12 months
|
|
User acceptability
時間枠:From study start date to 12 months
|
Ease of Use: how easy or difficult each method was to complete 1= Very difficult, 5=Very easy Dried Bloodspot Venepuncture Tasso+ |
From study start date to 12 months
|
|
User acceptability
時間枠:From Study start date for up to 12 months
|
Clarity of Instructions: how clear were the instructions you were given? 1= Not clear at all, 5=Extremely clear Dried Bloodspot Venepuncture Tasso+ |
From Study start date for up to 12 months
|
|
User acceptability
時間枠:From Study start date for up to 12 months
|
Safety: How safe did each method feel to you ? 1= Very unsafe, 5=Very safe Dried Bloodspot Venepuncture Tasso+ |
From Study start date for up to 12 months
|
|
User acceptability
時間枠:From Study start date for up to 12 months
|
Your Preference: please rank the three collection methods 1= your favourite, 3=least preferred Dried Bloodspot Venepuncture Tasso+ |
From Study start date for up to 12 months
|
|
User acceptability
時間枠:From Study start date for up to 12 months
|
Willingness to self-collect: how willing would you be to collect your own sample using each method in the future? 1= Very willing, 5=Very willing Dried Bloodspot Venepuncture Tasso+ |
From Study start date for up to 12 months
|
|
Sample quality
時間枠:From Study start date for up to 12 months
|
Volume adequacy- minimum blood vol 200uL
|
From Study start date for up to 12 months
|
|
Sample quality
時間枠:From Study start date for up to 12 months
|
Pre analytical failure- % samples unacceptable for analysis due to inadequate volume or poor quality blood spot
|
From Study start date for up to 12 months
|
|
Laboratory workflow efficiency
時間枠:From Study start date for up to 12 months
|
Hands on time (hrs/mins)
|
From Study start date for up to 12 months
|
|
Laboratory workflow efficiency
時間枠:From Study start date for up to 12 months
|
Batch failures based on LCMSMS batch acceptance criteria- QC with +/- 2sd of mean, cal curve R value > 0.95
|
From Study start date for up to 12 months
|
|
Laboratory workflow efficiency
時間枠:From Study start date for up to 12 months
|
Repeat samples (%)
|
From Study start date for up to 12 months
|
|
Turnaround time (TAT)
時間枠:From Study start date for up to 12 months
|
Time from sample request to result authorisation
|
From Study start date for up to 12 months
|
|
Clinical classification agreement
時間枠:From Study start date for up to 12 months
|
Numerical agreement (statistically quantified by Passing and Bablok analysis)
|
From Study start date for up to 12 months
|
|
Clinical classification agreement
時間枠:From Study start date for up to 12 months
|
Vitamin D status category agreement (deficient / insufficient / replete) quantified statistically using Cohen's kappa analysis
|
From Study start date for up to 12 months
|
協力者と研究者
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
キーワード
その他の研究ID番号
- 2026LAB148
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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