ClinicalTrials.gg
Not yet recruitingNCT07882225MISTUpdated Oct 21, 2026

Microneedle-based ISF Sampling Technique

An interventional study of PELSA System in No Condition, Healthy Individuals, sponsored by Ascilion AB. Not yet recruiting at 1 site in Germany. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-21.

Sponsored by Ascilion AB · Not applicable, Interventional, and Other

Updated Oct 20, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
110
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This clinical investigation aims to evaluate the performance and safety of the PELSA system, a hollow microneedle-based medical device designed for the collection of dermal interstitial fluid (dISF) from human skin.

Healthy adult volunteers will undergo a single dISF sampling session using the PELSA system. The primary objective is to assess the proportion of participants from whom at least 1 µL of dISF can be successfully collected during one sampling session.

Device safety and tolerability will also be evaluated, including the occurrence of adverse events, participant-reported pain, and local skin reactions. Exploratory assessments may include glucose detection and proteomic analysis of collected dISF samples.

02

Conditions studied

  • No Condition, Healthy Individuals

Keywords

  • Ascilion AB
  • PELSA
  • dISF
03

In context

Lead sponsor

Ascilion AB is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults aged 18-80 years of age (inclusive) at the time of ICF signature.
  • Participant is willing to participate and is capable of giving .
  • Participants must understand and sign the informed consent form, be able to comply with all study procedures and must be available for the duration of the study

Exclusion criteria

Exclusion Criteria:

  • Known dermatologic condition at the site of measurement, including active skin injury, lesion, infection or other dermatologic condition
  • Pregnant or breastfeeding persons
  • The participant has recently taken NSAIDS (within 72 hours of screening), Aspirin (5 days), prescription anticoagulants (e.g. warfarin, 5 days), or P2Y12 antiplatelet therapies (1 week)
  • Vulnerable persons
  • On persons with an open wound in or near the sampling area.
  • On persons with any type of tattoo or piercing anywhere in or near the sampling area.
  • On acral skin.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
110 participants (estimated)

Study arms

  • Experimental
    PELSA Dermal Interstitial Fluid Sampling

    Participants will undergo one dermal interstitial fluid sampling session using the PELSA system. The device employs an array of hollow microneedles and controlled subpressure to collect dermal interstitial fluid from the skin. Sampling performance, safety, and participant tolerability will be assessed.

    Device: PELSA System

Interventions

  • DevicePELSA System

    The PELSA system is a medical device designed to collect dermal interstitial fluid (dISF) using an array of hollow microneedles and controlled subpressure. The procedure involves applying the microneedle array to the skin, followed by extraction and collection of dISF into a capillary tube. Each participant undergoes one sampling session lasting approximately 15 minutes, during which sampling performance, safety, and tolerability are evaluated.

    Also known as: PELSA, Hollow Microneedle Sampling System

06

What researchers measure

Primary outcomes

  1. Successful Collection of Dermal Interstitial Fluid

    Proportion of participants with successful collection of at least 1 µL of dermal interstitial fluid during one PELSA sampling session. The success proportion and its 95% confidence interval will be calculated.

    Time frame: During the sampling session

Other outcomes

  1. Incidence of Device-Related Serious Adverse Events

    Number and proportion of participants experiencing device-related serious adverse events during the investigation and follow-up period.

    Time frame: From device application through 7-day follow-up.

  2. Participant-Reported Pain During PELSA Sampling

    Procedural pain will be assessed using a participant-reported Numerical Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain). Pain scores will be summarized descriptively across participants.

    Time frame: During and immediately after the sampling procedure (Day 1).

  3. Local Skin Reactions Following PELSA Sampling

    Standardized photographs of the sampling site will be obtained after the PELSA procedure to document visible skin changes, including erythema, bleeding, or other local reactions. Skin findings will be evaluated descriptively.

    Time frame: Before and after the sampling procedure (Day 1).

  4. Detectability of Glucose in Collected Dermal Interstitial Fluid

    The presence of glucose in collected dermal interstitial fluid (dISF) will be assessed using a commercially available glucose measurement system (Contour Next). The proportion of samples yielding a measurable glucose result will be reported descriptively.

    Time frame: Following dISF collection during the study visit (Day 1).

  5. Exploratory Detection of Inflammatory Proteins in Dermal Interstitial Fluid

    A subset of 20 collected dISF samples will undergo exploratory proteomic analysis using the NULISA Inflammatory 250 panel. The analysis will assess the detectability of inflammatory proteins in dISF, including the number and proportion of protein targets detected above the assay-specific detection threshold. Results will be summarized descriptively.

    Time frame: Samples collected during the study visit (Day 1), with subsequent laboratory analysis.

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No — Individual participant data (IPD) will not be made publicly available. Study data will be collected, processed, and retained by the Sponsor and authorized study personnel in accordance with the study protocol, informed consent, and applicable data protection regulations. Aggregated study results may be disseminated through ClinicalTrials.gov, scientific publications, and regulatory reporting.

No publications or documents are linked to this record.

09

Timeline

2 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Nov 2026; primary completion for Feb 2027, 3 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 13, 2026
First posted
Oct 20, 2026
StartEst.
Nov 2026
Primary completionEst.
Feb 2027
CompletionEst.
Feb 2027
Last update
Oct 21, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Oct 20, 2026
Show all 2 updates
  1. Oct 21, 2026
    Minor edits only
    + 1 other change: conditions
  2. Oct 20, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07882225
Lead sponsor
Ascilion AB
Responsible party
Sponsor
First posted
Oct 20, 2026
Start date
Nov 2026 (estimated)
Primary completion
Feb 2027 (estimated)
Completion
Feb 2027 (estimated)
Last update
Oct 21, 2026

Study contacts

Jeremy P Bost, Ph.D.
Contact
jeremy.bost@ascilion.com
+46728491672
Markus Magerl, MD, Ph.D.
principal investigator · Charite University, Berlin, Germany

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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