The Library
1530 papers on microsampling and monitoring, each with a finding paraphrased to our standard and labelled in one vocabulary. Every entry links to a legitimate copy; nothing is copied from an abstract.
Papers 101–200 of 733 labelled “blood”, newest first.
2026
The authors validated a liquid-liquid extraction LC-MS/MS method that quantifies cannabinoids in only 50 µL of liquid whole blood with lower limits of quantitation from 0.10 to 1.0 ng/mL. This microsampling approach enables roadside collection via finger prick, allowing measurement of THC levels at the time of driving without trained phlebotomists, thus overcoming delays that reduce THC concentrations.
Validation of a microsampling-compatible liquid-liquid extraction method for cannabinoid quantitation in 50 µL of whole blood using liquid chromatography-mass spectrometry — Mohammed et al., Journal of analytical toxicology
- blood
- liquid
- validation
- toxicology
2026
PEth reference values for Belgium were derived from VAMS microsampling of 487 participants in a national survey, showing distinct biomarker distributions between the general population and higher‑alcohol‑consumption subgroups. This validates capillary blood collection as a practical method for decentralised alcohol monitoring and forensic assessment.
Reference values for the alcohol biomarker phosphatidylethanol (PEth) in the Belgian population: Insights from a nationwide microsampling study — Vandenbroucke et al., Drug and alcohol dependence reports
- blood
- dried
- vams
- neoteryx-mitra
- toxicology
- biomarkers
2026
The study developed and validated a rapid LC-MS/MS method for quantifying cefazolin in capillary whole blood collected via VAMS, plasma, and plasma ultrafiltrate, showing robust performance across matrices and successful application in a pediatric pilot cohort for therapeutic drug monitoring.
Rapid, robust LC-MS/MS quantification of cefazolin in whole blood microsamples, plasma, and plasma ultrafiltrate: Analytical method validation and preliminary clinical application in pediatric population — Kocur et al., Clinica chimica acta; international journal of clinical chemistry (paywalled)
- blood
- dried
- vams
- neoteryx-mitra
- validation
- pediatric
- tdm
- antimicrobials
2026
This study demonstrates that a commercial conductive vial electromembrane extraction device can reliably isolate basic pharmaceuticals from whole blood collected on volumetric absorptive microsampling tips, showing superior reproducibility and reduced matrix effects compared to conventional treatment.
Volumetric absorptive microsampling and conductive vial electromembrane extraction for the analysis of pharmaceuticals in whole blood — Reguli et al., Talanta (paywalled)
- blood
- dried
- vams
- neoteryx-mitra
- validation
- tdm
- haematocrit
2026
In matched clinical samples from rheumatoid arthritis, VAMS and DBS showed strong agreement for methotrexate polyglutamates (slopes 0.95-1.07; bias within -4.21% to 0.36%; SRCC ≥ 0.969), with up to 100% of total MTXPG results within ±20% limits; capillary microsampling agreed closely with whole blood but differed from red blood cells, indicating matrix-specific differences that must be accounted for when interpreting against RBC-based reference values.
Multi-Matrix LC-MS/MS Validation of Methotrexate Polyglutamates: Comparison of VAMS, DBS, and Conventional Blood Sampling in Rheumatoid Arthritis — Kocur et al., International journal of molecular sciences
- blood
- dried
- capillary
- vams
- neoteryx-mitra
- validation
- venous-agreement
- tdm
- immunosuppressants
2026
A UPLC-MS/MS method for linezolid and metabolites in oral fluid and VAMS capillary blood satisfied ICH M10 validation requirements. Linezolid concentrations correlated strongly with venous plasma in both matrices, offering a non‑invasive option for therapeutic drug monitoring, whereas metabolites were systematically underestimated in VAMS and seldom detectable in oral fluid, restricting metabolite measurement.
Simultaneous quantification of linezolid and its metabolites (PNU-142300 and PNU-142586) in oral fluid and capillary blood by UPLC-MS/MS: method validation and clinical application using non-invasive sampling techniques — González-Berdullas et al., Journal of translational medicine (paywalled)
- blood
- saliva
- dried
- capillary
- vams
- validation
- venous-agreement
- tdm
- antimicrobials
- haematocrit
2025
Worked case studies of patient-centric sampling deployed in pharmaceutical drug development: how sponsors have implemented it, rather than whether it is possible.
Case Studies on the Use of Patient-centric Sampling for Clinical Studies in Pharmaceutical Drug Development — Patel et al., The AAPS Journal (paywalled)
- dct
- venous-agreement
- blood
- self-collection
- pediatric
- validation
- biomarkers
2025
A head-to-head pharmacokinetic comparison of conventional venous sampling against patient-centric microsampling: exactly the bridging study regulators now expect before microsampled data supports an endpoint.
A Pharmacokinetic Study of Zavegepant Nasal Spray in Healthy Adults Comparing Conventional Venous Blood Sampling With Patient-Centric Microsampling — Shahin et al., Clinical and Translational Science
- dct
- venous-agreement
- blood
- dried
- capillary
- liquid
- validation
2025
A phase 1 trial designed around participant self-collection of pharmacokinetic samples at home, with video training and pre-assembled kits: evidence that the model is a training and logistics package, not only a device.
At-Home Self-Collection of Pharmacokinetic Data: Design and Results From a Phase 1 Open-Label Feasibility Trial — Raoufinia et al., Clinical Pharmacology in Drug Development
- dct
- neoteryx-mitra
- blood
- tdm
- self-collection
- dried
2025
A systematic review found mixed economic evidence for microsampling in therapeutic drug monitoring; one study reported no cost reduction with DBS home-sampling, €688 versus €676, whilst another predicted savings up to 61%. The authors caution that more work is required to assess costs alongside clinical outcomes and optimise logistics for decentralised implementation.
The economic evidence for microsampling to support therapeutic drug monitoring: A systematic review — Carland et al., British Journal of Clinical Pharmacology (paywalled)
- vams
- blood
- economics
- dbs
- tdm
- self-collection
- dried
- antimicrobials
- pediatric
- immunosuppressants
- validation
2025
A review of 39 studies found that dried blood spot and volumetric absorptive microsampling show promising results for therapeutic drug monitoring of oral targeted anticancer drugs. The authors state that external validation remains crucial to confirm reliability, citing haematocrit effects and sample stability as key challenges.
Advancing Therapeutic Drug Monitoring for Oral Targeted Anticancer Drugs: From Hospital-Based Towards Home-Sampling — Meertens et al., Biomedical Chromatography
- vams
- blood
- dbs
- tdm
- self-collection
- haematocrit
- dried
- oncology
- validation
2025
A UK survey of 2,816 healthcare workers found that 74% preferred at-home PCR testing and 52% preferred at-home serological sampling over hospital visits; some reported blood-collection or kit difficulties, and the authors conclude that home sampling is acceptable and workable for keeping participants in long-running studies.
Comparing Participant Experiences of at-Home and Hospital-Based Biological Sampling: Cross-Sectional Insights From the SIREN Study — Lut et al., Health Science Reports
- acceptability
- blood
- self-collection
- serology
- capillary
2025
An evaluation of blood sampling strategies across a large UK healthcare-worker cohort study, covering how sampling approach affected participation.
Evaluating blood sampling strategies within the SIREN study: the experience from a large cohort of healthcare workers in the UK — Hettiarachchi et al., BMC Medical Research Methodology
- dct
- acceptability
- blood
- economics
- self-collection
- capillary
- validation
2025
Earlobe capillary microsampling of 100-250 µL found good agreement with venous draws for progesterone, concordance 0.911, and 17β-estradiol, concordance 0.919, across menstrual cycles, showing suitability for decentralised monitoring. However, participant-reported burden was not assessed, and further validation is required in elite athletes.
Larger-volume capillary blood sampling is a valid alternative to assess progesterone and 17β-estradiol for cycle phase identification — Schlie et al., Frontiers in Physiology
- blood
- liquid
- capillary
- hormones
- fertility
- venous-agreement
- validation
2025
A head-to-head of four upper-arm capillary devices, including TAP Micro Select, versus fingerstick and venous: experience and performance varied by device with none clearly superior, while analyte correlations with venous were similar across all.
Comparing capillary blood collection technologies: patient experience, device performance and clinical accuracy — Collier et al., Bioanalysis (paywalled)
- blood
- liquid
- yourbio
- capillary
- venous-agreement
- acceptability
- validation
- bd-microtainer
2025
A vacuum-assisted upper-arm device collected a mean 538 µL and met the volume target in 85.5% of cases; 17 of 19 analytes met CLIA agreement with venous, with pain lower than fingerstick.
Evaluation of a Simplified Upper-Arm Device for Vacuum-Assisted Collection of Capillary Blood — Schaff et al., Diagnostics
- blood
- liquid
- capillary
- venous-agreement
- acceptability
- validation
- bd-microtainer
2025
Plasma lipidomes from self-collected upper-arm capillary blood were statistically indistinguishable from paired venous plasma, most classes at r=0.95–0.99, validating at-home capillary self-collection for lipidomics.
Comparison of capillary and venous plasma lipidomes: validation of self-collected blood for plasma lipidomics — Hameed et al., J. Lipid Research
- venous-agreement
- blood
- self-collection
- capillary
- liquid
- validation
- biomarkers
2025
This study validated a method for measuring the alcohol biomarker phosphatidylethanol using two volumetric absorptive microsampling devices, finding that the Mitra device met all validation criteria and agreed with venous sampling. The Capitainer device was deemed suitable but showed reduced accuracy at higher concentrations, with a small proportional negative bias compared to venous results.
A validated method for capillary phosphatidylethanol 16:0/18:1 quantification with two different 10-µl volumetric absorptive microsample devices in the same setup — Andreassen et al., Journal of analytical toxicology (paywalled)
- vams
- venous-agreement
- neoteryx-mitra
- blood
- dbs
- dried
- toxicology
- capillary
- validation
2025
A comparison of blood microsampling found that after 35 days, PFAS recovery changed by over 10% for five analytes using the Neoteryx hemaPEN and four using Whatman 903, but zero using the Neoteryx Mitra. The Mitra retained 45 of 49 PFAS within 70-130% recovery, showing its high stability for decentralised biomonitoring without contamination risks.
Comparison of microsampling for PFAS blood analysis: Enabling cheap high-resolution biomonitoring — Partington et al., Analytica chimica acta (paywalled)
- vams
- neoteryx-mitra
- blood
- dbs
- self-collection
- dried
- capillary
- validation
2025
The study found that VAMS devices exhibited elevated background metal concentrations that often matched or exceeded levels found in venous blood, complicating trace element analysis. Although a cleaning protocol reduced some background noise, persistent contamination limits the current efficacy of this microsampling method for environmental biomonitoring.
Evaluating the efficacy of the VAMS Mitra microsampler for whole blood trace element analysis — Ogunesan et al., Bioanalysis
- vams
- neoteryx-mitra
- blood
- dried
- validation
- biomarkers
2025
Dried saliva collected with the Mitra device correlated strongly with wet saliva but poorly with plasma unbound and total concentrations, indicating it is not a reliable substitute for plasma in routine therapeutic drug monitoring of mycophenolic acid and its glucuronide metabolite. Capillary blood collected via VAMS remains a promising alternative for long term monitoring in paediatric patients.
Volumetric Absorptive Microsampling of Saliva for Pharmacokinetic Evaluation of Mycophenolic Acid and Its Glucuronide Metabolite in Pediatric Renal Transplant Recipients: Bioanalytical Method Validation and Clinical Feasibility Evaluation — Kocur et al., Pharmaceuticals
- blood
- saliva
- dried
- capillary
- vams
- neoteryx-mitra
- validation
- pediatric
- tdm
- immunosuppressants
2025
The study found very strong correlation between venous blood collection and capillary VAMS using Mitra devices for detecting SARS-CoV-2 spike antibodies, with samples remaining stable at room temperature for several months. This enables reliable at-home, patient-centric serological testing for large-scale community surveillance and vaccine studies.
Validation of at-home blood sampling for large scale, cost effective serological analysis for anti-viral antibody responses — Mayer et al., Journal of immunological methods (paywalled)
- blood
- dried
- capillary
- vams
- neoteryx-mitra
- self-collection
- validation
- venous-agreement
- serology
2025
This study compared four dried blood spot devices for glucocorticoid detection, finding that the Mitra VAMS device offered the best combination of analytical recovery and user usability, whilst the HemaXis DB10 showed the least bias compared to whole blood.
Analytical and usability comparison of microsampling dried blood spot devices for glucocorticoid detection in sports using ultra-high-performance liquid chromatography-tandem mass spectrometry — Chen et al., Analytica chimica acta (paywalled)
- vams
- acceptability
- neoteryx-mitra
- doping
- blood
- dbs
- haematocrit
- dried
- toxicology
- hormones
- validation
2025
The study found a dried blood spot method for ustekinumab was linear from 3 to 12 mg/L with inter-day accuracy of 90.1 to 106%, enabling reliable capillary blood measurement for remote monitoring; the authors note the single-centre design.
Development, Validation and Application of the Dried Blood Spot Analysis Method for the Determination of Ustekinumab in Patients with Inflammatory Bowel Disease — Mingas et al., Pharmaceuticals
- blood
- dried
- capillary
- dbs
- validation
- tdm
- biologics
2025
Capillary dried blood spots yielded reference ranges for testosterone, androstenedione, 17α hydroxyprogesterone and progesterone in healthy premenopausal women, with lower concentrations in users of systemic hormonal contraceptives and cycle-related variation for 17OHP and P4. These ranges enable screening for disorders of sex development using less invasive microsampling.
Evaluation of reference ranges of four circulating sex steroids from dried blood spots in women aged 18-40 years — Wang et al., The Journal of steroid biochemistry and molecular biology (paywalled)
- blood
- dbs
- dried
- capillary
- fertility
- hormones
2025
Capillary tubes with serum separator gel gave 13% lower estradiol and 8% lower testosterone than non-gel capillary tubes, with discrepancies up to 19% and 14% versus venous tubes; other fertility hormones were unaffected. Conversion formulas were derived, but the study did not evaluate home collection workflows.
Systematic Reduction in Estradiol and Testosterone Measurements due to Serum Separator Gel in Blood Collection Tubes: Implications for At-Home Fertility Testing — Vasavan et al., The journal of applied laboratory medicine (paywalled)
- blood
- capillary
- venous-agreement
- fertility
- hormones
2025
The study validated a method for measuring cystic fibrosis drugs in dried blood spots, showing statistical equivalence to plasma concentrations, which supports their use as a less invasive alternative for therapeutic drug monitoring. It also found higher drug levels in nasal swabs, indicating localised accumulation at the disease site, which could inform more personalised treatment.
Development and application of a multimatrix LC-MS/MS method for quantifying elexacaftor-tezacaftor-ivacaftor: Expanding therapeutic drug monitoring in cystic fibrosis from systemic circulation to airways and sweat — Mucci et al., Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie (paywalled)
- venous-agreement
- sweat
- blood
- dbs
- qdbs
- tdm
- dried
- pediatric
- validation
2025
Validated on 40 adults, leptin measured from finger-prick dried blood spots agreed closely with matched serum and stayed stable at ambient and raised temperatures for 72 hours; the authors present it as a route into groups such as children that venepuncture has kept out of leptin research.
Validation of an Enzyme-Linked Immunosorbent Assay for Measuring Leptin, a Key Metabolic Hormone, in Dried Blood Spot Samples — Kim et al., American journal of human biology : the official journal of the Human Biology Council
- blood
- dried
- dbs
- validation
- venous-agreement
- hormones
2025
This pilot study found that while initial household enrolment was low at 9%, remote follow-up was highly feasible, with 88% of respondents, 151 of 172, successfully returning self-collected capillary blood samples after 12 months. This shows that decentralised microsampling is viable for household cohorts when face-to-face contact is restricted.
'Bern, get ready', BEready, a household-based cohort study for pandemic preparedness research in Switzerland: pilot study — Hodel et al., BMJ open
- blood
- liquid
- capillary
- self-collection
- dct
2025
The study found that capillary microtube samples showed perfect correlation, R 1.00, and narrow limits of agreement with venous blood for IgG monitoring, making them a viable alternative. Dried blood spots showed only moderate correlation, R 0.77, and broad limits of agreement, which the authors state makes them unsuitable for routine diagnostics.
Comparison of capillary dried blood spot and capillary microtubes with venous immunoglobulin G levels for routine diagnostics — Boland et al., Clinical biochemistry (paywalled)
- venous-agreement
- blood
- dbs
- dried
- capillary
- liquid
- validation
2025
The HematoCARD cartridge autonomously collects duplicate 10 microlitre dried blood spot samples from a single finger prick and shows good analytical performance for monitoring adalimumab, with accuracy between 91 and 111 per cent, linearity R squared 0.99 and coefficient of variation at or above 0.94 compared with serum reference and commercial DBS microsampling methods.
HematoCARD: A Volumetric Duplicate Dried Blood Spot Collection Cartridge Validated for Therapeutic Drug Monitoring — Van Hileghem et al., Analytical chemistry (paywalled)
- volumetric
- biologics
- blood
- dbs
- tdm
- haematocrit
- dried
- capillary
- validation
2025
A quantitative dried blood spot method using only 10 µL of blood successfully quantified six azole antimycotics and showed samples were stable under conditions simulating postal mailing. A formula to convert dried spot results to plasma values was derived, though the authors note this is an in vitro validation and clinical studies are required for translation to patient care.
Simultaneous Quantification of Azole Antimycotics in Quantitative Dried Blood Spots: A Step Toward Home Sampling for Therapeutic Drug Monitoring — Li et al., Therapeutic drug monitoring (paywalled)
- blood
- dried
- dbs
- qdbs
- self-collection
- validation
- tdm
- antimicrobials
2025
The study determined that using self-collected dried blood spots alongside online surveys was a feasible and acceptable method for remote pre-exposure prophylaxis adherence monitoring, with 64% of participants returning at least one blood specimen.
Remote pre-exposure prophylaxis adherence monitoring among young, Black men who have sex with men: a feasibility and acceptability pilot study — Jones et al., Current psychology (paywalled)
- dct
- acceptability
- blood
- dbs
- tdm
- self-collection
- dried
2025
A study of decentralised patient-centric microsampling found that 82% of untrained participants, 47 of 57, successfully self-collected acceptable fingerstick blood in Microtainer tubes. All 46 tested samples yielded accurate HIV viral suppression results compared to venipuncture, though this remote monitoring approach is limited to US courier services and temperature conditions.
A cross-sectional analysis of fingerstick blood self-microcollection for remote HIV suppression monitoring in Atlanta, Georgia, USA: a path to expanding access to continuum of care — Johnson et al., AIDS research and therapy
- blood
- liquid
- capillary
- bd-microtainer
- self-collection
- validation
- venous-agreement
- serology
2025
This study validated a method for quantifying fluconazole using the Mitra device, demonstrating sufficient accuracy and precision for therapeutic drug monitoring in paediatric patients.
Determination of Fluconazole in Children in Small Blood Volumes Using Volumetric Absorptive Microsampling (VAMS) and Isocratic High-Performance Liquid Chromatography-Ultraviolet (HPLC-UV) Detection — Zimbelmann et al., Pharmaceutics
- blood
- dried
- vams
- neoteryx-mitra
- validation
- pediatric
- tdm
- antimicrobials
2025
A comparison of three patient-centric dried blood microsampling devices, paper DBS, Mitra and Tasso-M20, found strong to excellent correlation with traditional venous plasma for measuring branched-chain amino acids and ketoacids. Participants reported high acceptability and expressed a strong willingness to use these devices for decentralised self-collection.
Quantitation of BCAA and BCKA in plasma and patient-centric dried blood microsamples in a clinical setting — Tierney et al., Bioanalysis
- vams
- venous-agreement
- acceptability
- neoteryx-mitra
- blood
- dbs
- metabolome
- dried
- validation
- biomarkers
2025
The study found volumetric absorptive microsampling showed high agreement between capillary and venous concentrations, with 94% of dasatinib and 95% of imatinib samples meeting the 20% acceptance criterion. VAMS is viable for imatinib monitoring and may allow longitudinal follow-up for dasatinib; however, VAMS results for imatinib, but not dasatinib, could be converted to plasma concentrations using prior ratios.
Toward Clinical Implementation of a Volumetric Absorptive Microsampling-Based Method for Dasatinib and Imatinib Therapeutic Drug Monitoring — Verougstraete et al., Therapeutic drug monitoring (paywalled)
- blood
- dried
- capillary
- vams
- validation
- venous-agreement
- tdm
- oncology
2025
In 277 paediatric patients, capillary microsampling with the Microsemi CRP device found close agreement with venous testing for CRP, with a mean difference of -0.25 mg/dL and 95% limits of -2.1 to 1.6 mg/dL. WBC showed a bias of -18 × 100/μL, with 95% limits of -73 to 37 × 100/μL. This supports decentralised, patient-centric screening of febrile children.
Comparison between point-of-care testing from capillary samples and conventional laboratory testing from venous samples for white blood cells and C-reactive protein in a pediatric outpatient setting — Kuniyoshi et al., Journal of general and family medicine
- venous-agreement
- blood
- capillary
- pediatric
- biomarkers
2025
While 72 per cent of participants returned self-collected dried blood spot kits, only 46 per cent provided samples adequate for a full cardiometabolic profile, with insufficient blood volume cited as the primary difficulty.
Feasibility of self-administered dried blood spot collection for cardiometabolic profile analysis in a population-based sample of young adults — Livingstone et al., PloS one
- blood
- dried
- dbs
- self-collection
- acceptability
- biomarkers
2025
The study compared quantitative dried blood spot (qDBS) and volumetric absorptive microsampling (VAMS) devices for measuring ganciclovir levels in capillary blood from pediatric renal transplant recipients. This comparison provides evidence for choosing between microsampling devices in therapeutic drug monitoring, supporting decentralised sampling approaches that reduce patient burden while maintaining analytical accuracy.
The comparison of two volumetric microsampling devices (qDBS and VAMS) for determining ganciclovir levels in capillary blood using the LC-MS/MS technique in pediatric renal transplant recipients — Kocur et al., European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences (paywalled)
- vams
- volumetric
- blood
- qdbs
- tdm
- dried
- antimicrobials
- capillary
- pediatric
- validation
2025
This review summarises how volumetric absorptive microsampling facilitates self-sampling and improves stability for pharmacokinetic and toxicokinetic studies while maintaining performance comparable to standard venous blood draws.
How microsampling is impacting pharmacokinetic and toxicokinetic studies: volumetric absorptive microsampling (VAMS) — Protti et al., Bioanalysis (paywalled)
- vams
- blood
- dried
- toxicology
- validation
2025
The paper summarises that volumetric finger-prick self-sampling is suitable for monitoring immunosuppressants and biomarkers after kidney transplantation, but successful implementation requires careful design of the entire workflow, including patient training and method validation. This matters because it provides a real-world framework for moving critical monitoring from the clinic to the patient's home.
Implementation of Volumetric Finger-Prick Self-Sampling for Therapeutic Drug Monitoring of Immunosuppressants After Kidney Transplantation: Lessons Learned From the Practice — Vethe et al., Therapeutic drug monitoring (paywalled)
- vams
- volumetric
- neoteryx-mitra
- blood
- tdm
- self-collection
- immunosuppressants
- validation
- biomarkers
2025
A UHPLC-MS/MS assay using the Capitainer-qDBS device successfully quantified five antiseizure medications, showing robust 30-day stability at room temperature and no haematocrit effect between 20-70%. Although the clinical cohort was small, comparison with plasma in 30 patients showed good correlation, supporting the potential of this patient-centric microsampling method for decentralised home monitoring.
Quantitative dried blood spot microsampling for therapeutic drug monitoring of -antiseizure medications by design of experiment and UHPLC-MS/MS — Cancellerini et al., Talanta (paywalled)
- venous-agreement
- blood
- qdbs
- tdm
- haematocrit
- dried
- validation
2025
A study of 12 kidney transplant recipients providing 69 paired samples found that a VAMS-based assay for mycophenolic acid and its metabolite had 90% to 106% accuracy. Converting microsampling results to plasma concentrations met agreement criteria, supporting decentralised monitoring, though the study was small and limited to a single centre.
Development and Clinical Validation of a Volumetric Absorptive Capillary Microsampling Method for Quantification of Mycophenolic Acid and Mycophenolic Acid Glucuronide in Kidney Transplant Recipients — Drevland et al., Therapeutic drug monitoring (paywalled)
- vams
- venous-agreement
- blood
- tdm
- dried
- capillary
- immunosuppressants
- validation
2025
This study found moderate to strong correlations between SARS-CoV-2 antibody levels in fingerprick dried blood spots collected using the hemaPEN device and standard venous serum samples from children and adults. The results suggest that this microsampling device offers a reliable alternative to venepuncture for serological surveillance.
Evaluation of SARS-CoV-2 Antibody Response Between Paired Fingerprick (HemaPEN<sup>®</sup>) and Venepuncture Collected Samples in Children and Adults — Mazarakis et al., Antibodies
- blood
- capillary
- dbs
- validation
- venous-agreement
- pediatric
- serology
2025
A study of older rural US patients found that 96 to 98 per cent of self-collected dried blood spot specimens were successfully analysed for HIV viral load, with high acceptability. However, concordance between self-reported and measured viral load was only 69 to 82 per cent, highlighting the value of objective decentralised microsampling over self-reporting.
Acceptability and Feasibility of Self-Collected Dried Blood Spot Specimens for Viral Load Monitoring among Rural Older People Living with HIV — Walsh et al., AIDS and behavior (paywalled)
- dct
- acceptability
- blood
- dbs
- self-collection
- dried
- serology
2025
A validated LC-MS/MS method for everolimus using Mitra and Capitainer devices found excellent agreement between capillary microsamples and venous whole blood in 33 adult transplant recipients. The results showed high accuracy and negligible haematocrit effects, supporting the use of microsampling for decentralised therapeutic drug monitoring.
Therapeutic Drug Monitoring of Everolimus Using Volumetric Absorptive Microsampling and Quantitative Dried Blood Spot Methods with LC-MS/MS in Adult Solid Organ Transplant Recipients: An Analytical and Clinical Comparative Study — Kocur et al., Molecules
- vams
- venous-agreement
- neoteryx-mitra
- blood
- qdbs
- tdm
- haematocrit
- dried
- capillary
- immunosuppressants
- validation
2025
In children with SLE, VAMS finger-prick capillary blood gave haematocrit-adjusted MPA and MPAG concentrations indistinguishable from plasma, and the AUC from VAMS derived plasma-equivalent concentrations matched plasma AUC with R2 0.97. This supports accurate pharmacokinetically guided dosing of MMF using only three timed capillary microsamples.
Volumetric Absorptive Microsampling Combined with Mass Spectrometry to Support Pharmacokinetically-Guided Precision Dosing of Mycophenolate Mofetil in Pediatric Lupus Nephritis Patients — Zhao et al., The journal of applied laboratory medicine (paywalled)
- vams
- venous-agreement
- blood
- tdm
- haematocrit
- dried
- capillary
- pediatric
- immunosuppressants
- validation
2025
A study of 292 patients found that the slopes of home-collected stimulated dried blood spot C-peptide levels over six months predicted 12-month venous mixed-meal tolerance test results, P<0.001. This shows decentralised microsampling can monitor beta-cell function, though further validation is required to confirm its reliability and broader applicability.
Early Detection of β-Cell Decline Using Home Dried Blood Spot C-Peptide Levels in New-Onset Type 1 Diabetes — Hendriks et al., Diabetes care (paywalled)
- dct
- venous-agreement
- blood
- dbs
- self-collection
- dried
- pediatric
- biomarkers
2025
A validated offline SPE-LC-MS/MS method using the Mitra microsampling device successfully quantified tacrolimus, cyclosporine A, tryptophan, kynurenine, and creatinine simultaneously. The method met EMA and FDA criteria, showing agreement between capillary and venous sampling, which could facilitate decentralised therapeutic drug monitoring and transplant follow-up through patient self-collection.
An Offline SPE-LC-MS/MS Method for Simultaneous Quantification of Tacrolimus, Cyclosporine A, Kynurenine, Tryptophan, and Creatinine Using Volumetric Absorptive Microsampling Device Mitra — Nierychlewski et al., Therapeutic drug monitoring
- blood
- dried
- capillary
- vams
- neoteryx-mitra
- validation
- tdm
- immunosuppressants
- biomarkers
2025
The Egoo Phe system showed strong concordance with dried blood spot testing across 100 paired samples, with median phenylalanine 274 versus 270 μmol/L and readings a mean 4.6% higher, and high caregiver acceptance; the small sample size limits generalisability and further validation in larger cohorts is required.
Point-of-Care Testing in PKU: A New ERA of Blood Phenylalanine Monitoring — Pinto et al., Nutrients
- acceptability
- blood
- dbs
- self-collection
- pediatric
- validation
2025
This study established conversion methods for estimating plasma concentrations from whole blood VAMS samples for seven out of ten oral anticancer drugs, finding good agreement between capillary and venous samples. Patients reported a positive experience with home sampling using this microsampling technique.
Clinical Application of Volumetric Absorptive Microsampling for Therapeutic Drug Monitoring of Oral Targeted Anticancer Drugs — Meertens et al., Therapeutic drug monitoring
- vams
- venous-agreement
- acceptability
- blood
- tdm
- self-collection
- oncology
- capillary
- validation
2025
A prospective study of 109 subjects found that 250 μl capillary whole blood microsampling is stable for five hours in a microtainer. This patient-centric, decentralised method successfully detected most HCV genotypes at defined limits using the Xpert HCV test on the GeneXpert Xpress system and the cobas HCV platform.
Independent assessment of a point of care HCV RNA test by laboratory analytical testing and a prospective field study in the U.S — Miller et al., PloS one
- blood
- liquid
- capillary
- bd-microtainer
- validation
- serology
2025
The authors found that a single microdose of recombinant EPO was detectable up to 72 hours using ITP and CP methods, though the Tasso microsampling device showed lower sensitivity than Mitra and Capitainer. Additionally, isotope ratio mass spectrometry successfully detected testosterone micro-dosing in all analysed samples, supported by serum testosterone levels.
Detection of a Single Microdose of Testosterone and Recombinant EPO in Healthy Volunteers — Heiland et al., Drug testing and analysis
- neoteryx-mitra
- doping
- blood
- dbs
- dried
- steroids
- capillary
- hormones
- urine
- validation
2025
The paper highlights that while self-collection microsampling devices for blood and other matrices are advancing decentralised testing, standardisation of sample collection and integration into clinical workflows is critical for reliable results. This matters because it identifies key hurdles that must be overcome for patient-centric sampling to be widely adopted in healthcare.
Standardization of Microsampling Technologies for Accurate Sensing and Reliable Diagnostics — Mora & Mace, ACS sensors (paywalled)
- blood
- standards
- self-collection
- haematocrit
- validation
- saliva
2025
This meta-analysis found strong agreement between self-collected capillary blood and venous samples for laboratory results. Capillary sampling was associated with significantly lower pain scores than venipuncture, particularly when using upper arm devices rather than fingerprick methods.
Comparison of laboratory results and pain perception in self-sampled capillary blood versus venous blood sampling: a systematic review and meta-analysis — Schröder et al., Clinical biochemistry (paywalled)
- venous-agreement
- acceptability
- blood
- self-collection
- capillary
- liquid
- validation
2025
Microsampling, particularly VAMS and quantitative DBS, can enable patient-centric therapeutic drug monitoring of immunosuppressants after transplantation, allowing home self-sampling and long-term monitoring when patients live far from transplant centres. These volumetric dried formats have largely overcome the haematocrit effect and sample heterogeneity that limit conventional dried blood spots.
Microsampling techniques and patient-centric therapeutic drug monitoring of immunosuppressants — Kocur & Pawiński, Bioanalysis (paywalled)
- vams
- venous-agreement
- blood
- qdbs
- tdm
- self-collection
- haematocrit
- dried
- capillary
- immunosuppressants
2025
In an untargeted metabolomics study, microsampling devices, particularly the Mitra and Capitainer, yielded metabolic profiles comparable or superior to plasma in feature number and intensity, and in the precision and stability of some metabolites. This supports their potential for large-scale, decentralised metabolic profiling, though the captured metabolite profile was application-dependent.
LC-MS-Based Global Metabolic Profiles of Alternative Blood Specimens Collected by Microsampling — Thaitumu et al., Metabolites
- vams
- neoteryx-mitra
- blood
- dbs
- qdbs
- metabolome
- dried
- validation
- biomarkers
2025
This study of acutely ill older adults found that in-home point-of-care testing provided clinically reliable results, with strong correlations observed between on-site analysis and routine laboratory testing. While venous samples showed lower misclassification rates, capillary blood offered a pragmatic alternative for decentralised diagnostics despite higher variation.
Validation of point-of-care tests used at in-home assessments among older adults in primary care — Smedemark et al., Scandinavian journal of primary health care
- blood
- liquid
- capillary
- validation
- venous-agreement
2025
This study found that self-collected capillary blood using the Topper system provided reliable results for most clinical chemistry analytes compared to venous sampling, with 94% of participants successfully obtaining a sample. While glucose and uncorrected AST failed to meet bias criteria, analytes such as lipids and enzymes demonstrated optimal agreement, supporting the use of this decentralised microsampling method for home testing.
Validation of (self-collected) capillary blood using a topper collection system as alternative for venous sampling for 15 common clinical chemistry analytes — Geujar et al., Clinical chemistry and laboratory medicine (paywalled)
- blood
- liquid
- capillary
- self-collection
- validation
- venous-agreement
2025
Capillary blood self-collected with the VAMS device showed 100 per cent agreement with serum for detecting SARS-CoV-2 S RBD antibodies in participants with known past infection, and saliva showed slightly lower but high agreement; agreement was good to almost perfect in those without known antibodies, and most participants found finger prick easy while half found the microsampler easy, supporting decentralised serosurveillance.
Performance and feasibility of self-microsampling of capillary blood and saliva for serological testing of SARS-CoV-2 — Morales et al., PloS one
- vams
- venous-agreement
- acceptability
- blood
- self-collection
- serology
- capillary
- saliva
2025
Self-collected capillary samples showed good agreement with venous samples for most safety monitoring parameters in patients with rheumatic disease, although platelet counts were less reliable and haemolysis affected some biochemistry results. Patients found the self-sampling process easy and virtually painless, suggesting it is a feasible option for decentralised monitoring.
Self-sampling of capillary blood for safety monitoring of DMARD therapy in patients with rheumatic disease: a feasibility and method-comparison study — Adelhelm et al., Scandinavian journal of clinical and laboratory investigation (paywalled)
- venous-agreement
- acceptability
- blood
- self-collection
- capillary
- liquid
2025
This study validated a method combining quantitative dried blood spots with DNA methylation analysis to monitor B-cell counts remotely, achieving 100% sensitivity and specificity for a specific clinical threshold. This decentralised approach facilitates patient-centric therapeutic drug monitoring for anti-CD20 therapies by overcoming the logistical barriers of regular venous sampling.
Home-sampling of B cells using quantitative dried blood spots to enable tailored therapeutic re-dosing of anti-CD20 therapies — Tallantyre et al., Multiple sclerosis (paywalled)
- biologics
- multimodal
- blood
- rpm
- qdbs
- tdm
- self-collection
- dried
- validation
2025
This study found that a decontamination pipeline using metagenome-assembled genomes improves the accuracy of variant calling from saliva samples, showing superior concordance with blood-derived results compared to conventional methods. These results validate the potential of self-collected oral samples for accurate personal genotyping.
Metagenome-assembled genomes enhance bacterial read decontamination and variant calling in oral samples — An et al., iScience
- venous-agreement
- blood
- microbiome
- validation
- saliva
- genotyping
2025
This study found that dried blood microsamples, particularly those collected with the Mitra device, provided metabolic profiles comparable or superior to conventional plasma, supporting their use as a viable alternative for untargeted metabolomics.
Toward minimally invasive metabolomics: GC-MS metabolic fingerprints of dried blood microsamples in comparison to plasma — Marques de Sá E Silva et al., The Analyst (paywalled)
- vams
- venous-agreement
- neoteryx-mitra
- blood
- dbs
- metabolome
- dried
- capillary
- validation
2025
The True Dose kit achieved a high System Usability Scale score of 82.7 and enabled 92% of participants to collect the required capillary blood volume, with a median sampling time of 10.42 minutes, indicating good usability but highlighting the need for clearer instructions and stress management to support reliable decentralised sampling.
Capillary Blood Self-Sampling for Therapeutic Drug Monitoring: A Mixed-Methods Usability Study of the True Dose<sup>®</sup> Kit — Crafoord et al., BioMed research international
- blood
- capillary
- self-collection
- acceptability
- tdm
2025
This study describes the iterative development of a novel capillary self-sampling device, demonstrating that the fourth prototype enabled 77.5% of users to successfully collect at least 500 µL of blood with high usability and acceptability scores.
The development of a novel device to aid in capillary macro blood self-sampling via an iterative study design — Herrijgers et al., Expert review of medical devices (paywalled)
- blood
- capillary
- self-collection
- acceptability
2025
The method accurately measures therapeutic antibodies in Vams samples, correlating with plasma levels, enabling reliable therapeutic drug monitoring from home-collected samples to optimise cancer treatment dosing
A novel approach for quantifying therapeutic monoclonal antibodies in blood through liquid chromatography-tandem mass spectrometry — Chi et al., Analytica chimica acta (paywalled)
- blood
- vams
- venous-agreement
- tdm
- biologics
- oncology
2025
Capillary dried blood spot concentrations of levetiracetam agreed closely with plasma, with 92.1% within 20% of the mean and no proportional bias, and capillary matched venous dried blood spot with acceptable deviations; samples remained stable during postal transit, enabling at‑home self‑sampling for therapeutic drug monitoring.
Therapeutic drug monitoring of levetiracetam - Is dried blood spot sampling suitable? — Linder et al., Clinical biochemistry (paywalled)
- venous-agreement
- blood
- dbs
- tdm
- self-collection
- dried
- capillary
- validation
2025
BD's MiniDraw capillary system, in the hands of trained staff without phlebotomy experience, was clinically equivalent to conventional capillary and venous collection for a panel of general chemistry analytes, alanine aminotransferase and chloride against the venous comparator excepted, and its serum separator tube held the analytes for 48 hours. It shows an upper-arm system reaching pharmacy-style settings with laboratory-grade results.
Evaluation of a Novel Capillary Blood Collection System for Blood Sampling in Nontraditional Settings as Compared with Currently Marketed Capillary and Venous Blood Collection Systems for Selected General Chemistry Analytes — Parikh et al., The journal of applied laboratory medicine (paywalled)
- blood
- liquid
- capillary
- venous-agreement
- validation
2025
A 2025 review maps 28 microsampling devices, from dried spots and volumetric absorptive tips to upper-arm liquid capillary collectors, and names what a laboratory must control before their results are used: the haematocrit effect in non-volumetric dried samples, interstitial fluid from finger milking, volume, haemolysis and transport stability. Regulators on both sides of the Atlantic ask for the same two things, a device the patient can use safely and a sample fit for the test.
Patient centric blood sampling and analysis for diagnostics and laboratory medicine — Spooner et al., Bioanalysis
- blood
- standards
- self-collection
- haematocrit
- dried
- capillary
- liquid
- validation
2025
In 46 women under hormone monitoring at Columbia University Fertility Center, oestradiol, LH, FSH, progesterone and hCG measured on routine immunoassays from 400 to 600 microlitres of upper-arm capillary blood collected with TAP Micro Select agreed closely with paired venous results for every analyte, with correlation and concordance high throughout. It is the evidence that puts a self-collected sample inside the daily monitoring of an IVF cycle.
Painless, needle-free capillary blood collection for fertility hormone monitoring — Lattin et al., Fertility and sterility (paywalled)
- blood
- liquid
- capillary
- yourbio
- fertility
- hormones
- venous-agreement
- validation
2025
Circulating collagen X degradation product (CXM) remains stable in healthy adults regardless of age or sex. In patients with tibial or femoral shaft fractures, serum CXM correlates with established bone turnover markers, and finger prick collection makes it feasible for remote quantitative monitoring of fracture healing without repeated clinic visits.
Efficacy of biomarkers in the endochondral phase of fracture repair and healing in long bones: A clinical observational studys — Working et al., PLoS medicine
- blood
- capillary
- biomarkers
2025
Healthcare professionals considered a postal self-collection service for diabetes review acceptable, anticipating it would reduce missed appointments and enable more holistic use of consultation time, while cautioning that administrative burden and public perception of diminished face-to-face care would need managing. The study indicates that patient-centric microsampling can secure professional support, a prerequisite for decentralised diagnostics.
Healthcare professional views of a diabetes review postal box: A qualitative study — Colley et al., Diabetic medicine : a journal of the British Diabetic Association (paywalled)
- blood
- urine
- self-collection
- acceptability
2025
In 40 participants, dried blood spots showed excellent agreement with venous blood for HBA1c measurement (LCCC 0.982, PCC 0.990, limits of agreement -0.45 to 0.48). The method demonstrated high repeatability (CV 1.13) and clinical conformity (K 0.80), suggesting capillary DBS sampling could replace venipuncture for diabetes monitoring in decentralised settings.
Preliminary comparative study of HBA1c measurement by IEX-HPLC Bio-Rad in dried blood spot vs. whole venous blood — Hadami et al., Annales de biologie clinique (paywalled)
- blood
- dried
- capillary
- dbs
- validation
- venous-agreement
- acceptability
2025
Self-collection of menstrual blood using the M-strip was feasible and highly acceptable to women, and hr-HPV DNA results from menstrual blood showed 100% concordance with direct cervical smears, supporting its potential use in decentralised cervical screening.
HPV-DNA testing from self-sampled menstrual blood using M-strip: A proof-of-concept study on feasibility & acceptance of a novel biosampling method — Chandra et al., The Indian journal of medical research
- blood
- self-collection
- acceptability
- hpv
2025
A home-based PrEP follow-up programme using self-collected specimens and remote monitoring was evaluated among predominantly Black and Latino men who have sex with men in South Florida. Only 37.5% elected home-based care, with completion rates falling from 48.3% at first follow-up to 15% by the third, and most returned to clinic care citing discomfort with self-collection and logistical barriers, highlighting that decentralised HIV prevention requires enhanced support to achieve equitable uptake and persistence.
PrEP Beyond the Clinic: Evaluation of a Home-Based PrEP Follow-Up System Among a Cohort of Predominantly Black and Latino Men who Have Sex with Men in South Florida — Butts et al., Journal of acquired immune deficiency syndromes (paywalled)
- blood
- urine
- self-collection
- acceptability
- sti
2025
A newborn screening programme using dried blood spots detected classic 21-hydroxylase deficiency in 1 in 17,699 infants, with second-tier LC-MS/MS testing achieving a positive predictive value of 4.3. However, 23% of cases became symptomatic before results were reported, highlighting that timeliness remains a critical challenge for decentralised diagnostics.
Newborn screening for congenital adrenal hyperplasia due to 21 hydroxylase deficiency: the Italian experience 2006-2019 — Baronio et al., Journal of endocrinological investigation (paywalled)
- blood
- dried
- dbs
- pediatric
- hormones
2025
In a Phase 1 crossover study of etrasimod, self-collected blood microsamples yielded pharmacokinetic exposures comparable to conventional venous sampling, both with and without participant practice sessions. Continuous wearable sensors concurrently enabled real-time remote monitoring of safety vital signs and electrocardiograms, demonstrating the viability of hybrid decentralised designs in early-phase clinical trials.
Advancing Early Clinical Trials: The Transformative Potential of Decentralized Designs and Digital Technologies in Phase 1 Clinical Trial — Malhotra et al., Clinical pharmacology and therapeutics
- blood
- capillary
- self-collection
- venous-agreement
- dct
- wearable
- rpm
- digital-biomarker
- multimodal
2025
The First to Know Syphilis Self-Test, using self-collected fingerstick capillary blood, demonstrated 93.4% sensitivity and 99.5% specificity against a composite reference standard in a 1,270-subject study. This over-the-counter test enables patient-centric screening at home, which could improve early detection and reduce transmission of syphilis and associated STIs.
Clinical development and performance of the First to Know Syphilis Self-Test for over-the-counter usage: a <i>de novo</i> rapid test for treponemal antibody — Clark et al., Journal of clinical microbiology
- blood
- liquid
- capillary
- self-collection
- validation
- serology
- sti
2025
Among staff in long-term care and retirement homes in Ontario, SARS-CoV-2 seroprevalence rose from 24% in 2021 to 44% in 2022 and was higher in Black, East and Southeast Asian and other racialised groups, lower in higher income neighbourhoods and among those with paid sick leave, indicating socioeconomic disparities that should inform equity rooted public health interventions.
Patterns of SARS-CoV-2 seropositivity among essential workers in long term care and retirement homes in Ontario, Canada: A descriptive cross-sectional study — Fahim et al., PLOS global public health
- blood
- dried
- dbs
- self-collection
- serology
2025
A term newborn died at 4 days; newborn screening by tandem mass spectrometry on a dried blood spot indicated mitochondrial trifunctional protein or long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency, and genetic analysis of the same DBS identified two HADHA variants, confirming the diagnosis; the authors review early neonatal deaths from fatty acid oxidation disorders and discuss limitations of newborn screening for these conditions, highlighting the role of DBS-based screening and post-mortem genetic testing in decentralised diagnostics.
Sudden Death of a Four-Day-Old Newborn Due to Mitochondrial Trifunctional Protein/Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiencies and a Systematic Literature Review of Early Deaths of Neonates with Fatty Acid Oxidation Disorders — Drole Torkar et al., International journal of neonatal screening
- blood
- dried
- dbs
- pediatric
2025
Dried blood spot HPLC accurately identified and quantified all major hemoglobin variants after ambient storage for up to three weeks, correctly diagnosing sickle cell, beta-thalassemia and other hemoglobinopathies compared to conventional whole blood analysis. This supports cost-effective, decentralised screening in remote regions where venous sampling is impractical.
Hemoglobin Variant Analysis and Its Comparison between Conventional High-performance Liquid Chromatography Using Whole Blood versus Dried Blood Spot: High-performance Liquid Chromatography — Jena et al., Indian journal of public health (paywalled)
- blood
- dried
- dbs
- validation
- venous-agreement
- economics
2025
In a prospective study of 126 people who inject drugs, 44 percent completed DBS self-collection and received HCV results; among completers, 7 percent had detectable HCV RNA and all initiated treatment. Completion was higher in those aged 40 or older and in opioid agonist treatment, but lower with stimulant use and previous HCV testing, demonstrating feasibility of peer-supported mail-order screening.
Peer-delivered mail-order self-collection and linkage to treatment for hepatitis C virus infection among users of a harm reduction service in Denmark — Demant et al., The International journal on drug policy (paywalled)
- blood
- dried
- dbs
- self-collection
- serology
2025
In 41 Black adults with heart failure, elevated xanthine oxidase activity from capillary blood collected with Mitra microsampling associated significantly with dyspnoea severity. This demonstrates that microsampling can capture clinically relevant inflammatory biomarkers linked to symptom burden in underserved populations, supporting its use in decentralised cardiovascular monitoring.
Inflammation markers associated with symptoms and neighborhood deprivation in black adults with heart failure — Butts et al., Heart & lung : the journal of critical care (paywalled)
- blood
- dried
- capillary
- vams
- neoteryx-mitra
- biomarkers
2025
An LC-MS/MS assay using volumetric absorptive microsampling achieved 72.5% to 98.9% accuracy and under 8% precision for measuring circulating endocannabinoids and related lipid mediators. However, drying time significantly altered 2-AG and 2-OG concentrations, and marked differences were observed between whole blood and plasma measurements.
Spotlight on Endocannabinoids in Healthy Individuals Using Volumetric Absorptive Microsampling Combined with LC-MS/MS Analysis — Haroune et al., ACS omega
- blood
- dried
- vams
- neoteryx-mitra
- validation
- haematocrit
- biomarkers
2025
Among 154 volunteers, 85% found HemaSpot HF self-sampling acceptable, but correlation with venous blood for anti-tetanus toxin IgG was moderate (r = 0.73) and sensitivity varied from 70% to 100% depending on the cut-off value, with concentration differences widening at higher IgG levels. The device requires further improvement before it can reliably replace venous puncture for decentralised serological testing.
Feasibility of blood self-sampling with HemaSpot HF for Anti-Clostridium tetani Toxin IgG detection — Kettlitz et al., Scientific reports
- blood
- dried
- dbs
- self-collection
- venous-agreement
- acceptability
- serology
2025
Targeted proteomic evaluation of a novel finger-prick dried plasma device demonstrated strong quantitative correlation with conventional plasma (R = 0.99) and precision under 10% CV for 80% of quantified peptides across healthy donors. Quantified targets also remained stable during room temperature storage for up to 232 days, supporting its use for decentralised biomarker monitoring.
Quantitative Assessment of a Novel Device Designed for Patient-centric Sampling of Dried Plasma Using Targeted Proteomics — Hober et al., Analytical chemistry
- blood
- dried
- capillary
- self-collection
- validation
- venous-agreement
- dct
- biomarkers
2025
Comfort Draw collected adequate capillary blood from the upper arm in 85.5 per cent of attempts for total blood volume and 95.1 per cent for serum volume, with 17 of 19 serum analytes meeting CLIA acceptance criteria against matched venous samples. The procedure scored a mean pain rating of 0.39 out of 10, indicating high patient acceptability, and the device’s simpler design may lower cost for decentralised diagnostics.
Evaluation of a Simplified Upper Arm Device for Vacuum-Assisted Collection of Capillary Blood Specimens — Schaff et al., Diagnostics
- blood
- liquid
- capillary
- validation
- venous-agreement
- acceptability
2025
The study found that dried blood spot sampling showed good agreement with plasma concentrations for vancomycin and creatinine, with most differences within 20%, and patients preferred the finger prick method over venepuncture, supporting its use for decentralised therapeutic drug monitoring.
Clinical validation of an innovative dried whole-blood spot method to quantify simultaneously vancomycin and creatinine in adult patients — Hassanzai et al., The Journal of antimicrobial chemotherapy
- blood
- dried
- dbs
- self-collection
- validation
- venous-agreement
- acceptability
- tdm
- antimicrobials
2025
Capillary blood collection using volumetric absorptive microsampling demonstrated equivalent quantification of principal colonic polyphenol metabolites compared with matched venous plasma across a six-hour period following barley biscuit consumption. The technique successfully captured the pharmacokinetic profiles over 48 hours, confirming VAMS as a reliable alternative to venepuncture for dietary biomarker monitoring.
Finger-prick blood sampling using volumetric absorptive microsampling (VAMS) method for monitoring the main (poly)phenolic metabolites in human blood after barley biscuit intake — Cortijo-Alfonso et al., Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (paywalled)
- blood
- dried
- vams
- neoteryx-mitra
- validation
- venous-agreement
- metabolome
- biomarkers
2025
A fully validated LC-MS method quantifies four direct oral anticoagulants and phenprocoumon from 10 µL capillary blood collected with Neoteryx Mitra VAMS devices. Samples remained stable for seven days at room temperature, showed no significant haematocrit effect, and offers a reliable approach for ambulatory therapeutic drug monitoring.
Development and validation of a quantification method for direct oral anticoagulants from capillary blood using volumetric absorptive microsampling and online SPE-LC-MS — Opitz et al., Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (paywalled)
- blood
- dried
- capillary
- vams
- neoteryx-mitra
- validation
- tdm
- haematocrit
2025
VAMS finger-prick sampling showed moderate agreement with conventional venous sampling for clofazimine, with a systematic 13% lower concentration that can be corrected, and was more cost-effective by about 4.45 USD per sample, supporting its use for routine therapeutic drug monitoring in MDR-TB.
Analytical and clinical validation of a volumetric absorptive microsampling (VAMS) - Ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method for the analysis of Clofazimine in whole blood — Nugraha et al., Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (paywalled)
- blood
- dried
- vams
- neoteryx-mitra
- validation
- venous-agreement
- tdm
- antimicrobials
- economics
2025
The study validated Mitra VAMS devices for detecting nerve agent, sulfur mustard and opioid metabolites in dried human blood, achieving sensitivities between 0.05 and 1 ng/mL across analytes with acceptable precision, accuracy and recovery, supporting their use as a simpler alternative to refrigerated sample transport for forensic exposure verification.
Evaluation of dried blood spot sampling for verification of exposure to chemical threat agents — Walker et al., Forensic toxicology
- blood
- dried
- vams
- neoteryx-mitra
- validation
- toxicology
2025
Among 404 Australians at risk of hepatitis C, 91% of those with prior infection selected point-of-care RNA testing, citing rapid results, while 72% of those without prior infection preferred staff-assisted antibody testing. Offering rapid, staff-assisted testing improves uptake among people who inject drugs, those experiencing homelessness and those receiving opioid agonist therapy.
Patient preferences for simplified hepatitis C testing modalities among people at risk of hepatitis C infection in Australia: the SELECT study — Stevens et al., The International journal on drug policy (paywalled)
- blood
- capillary
- dbs
- self-collection
- acceptability
- serology
2025
Among 133 users of HIV self-sampling and self-testing in the Netherlands, the commonest reason for choosing this route was saving time, followed by anonymity and avoiding a GP visit. However, 22% encountered problems, with seven in ten of those struggling to obtain enough blood from a finger prick, showing that while self-testing expands reach, blood collection remains a key usability hurdle for decentralised HIV screening.
Self-sampling and self-testing for HIV at a commercial and community-based test provider in the Netherlands: user preferences and usability — Willemstein et al., BMC health services research
- blood
- capillary
- self-collection
- acceptability
- serology
- sti
2025
Self-sampling of dried blood spots for HIV viral load monitoring proved acceptable among sexual minority men who use stimulants, with 92% returning Tasso-M20 kits and 88% returning HemaSpot HD kits. Participants' device preferences centred on convenience and pain, and they highlighted that clearer instructions, contingency planning, and addressing intersectional stigma are essential for engagement, indicating that patient choice in sampling methods could improve uptake of decentralised diagnostics.
'I was like, this is gonna hurt': Implementing self-sampling of dried blood spots to measure HIV viral load — Chavez et al., PloS one
- blood
- dried
- dbs
- self-collection
- acceptability
- serology
2025
Capillary blood sampling showed near-perfect correlation with venous sampling for total PSA across a wide clinical range with negligible bias, and samples remained stable at ambient temperature for up to eight days, supporting feasibility of home self-testing for prostate cancer.
Total Prostate-Specific Antigen (PSA) Testing in Capillary Samples: Proof-of-Principle and Feasibility Study for Home Self-Testing for Prostate Cancer — Sodi et al., The journal of applied laboratory medicine (paywalled)
- blood
- liquid
- capillary
- validation
- venous-agreement
2025
A dried blood spot LC-MS/MS method for voclosporin was analytically validated using volumetric sampling devices, demonstrating strong agreement with whole blood analysis across a 10-600 µg/L range. The method meets ICH M10 guidelines and allows remote therapeutic drug monitoring in kidney transplant recipients.
Dried blood spot LC-MS/MS quantification of voclosporin in renal transplant recipients using volumetric dried blood spot sampling — Metscher et al., Journal of pharmaceutical and biomedical analysis (paywalled)
- blood
- dried
- dbs
- volumetric
- validation
- tdm
- immunosuppressants
2025
In a national surveillance pilot in Georgia, 39.8% of children aged 5-7 years had blood lead levels at or above 3.5 micrograms per decilitre, with predictors including male sex, unpainted housing, urban living in Imereti, and household lead bullet production and spice use in Adjara. The study shows that VAMS is a feasible, less invasive method for accurate lead testing in resource limited settings.
Blood Lead Levels in Children 5 to 7 Years of Age from the Republic of Georgia: A Feasibility Study on Lead Surveillance Using Volumetric Absorptive Microsampling — Rylander et al., Environmental health perspectives
- blood
- dried
- vams
- pediatric
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