ClinicalTrials.gg
Enrolling by invitationNCT07409090Updated Feb 13, 2026

Micro-Coring® for the Treatment of Skin Laxity of the Knees

An interventional study of Micro-Coring in Body and Knees, sponsored by Cytrellis Biosystems, Inc.. Enrolling by invitation at 1 site in United States. Open to participants aged 22 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-13.

Sponsored by Cytrellis Biosystems, Inc. · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2026, 5 months ago, but the record still lists the study as enrolling by invitation.
Phase
Not applicable
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
22 Years to 70 Years
Sex
All
01

Study summary

Early, informal clinical experience suggests that Micro-Coring may help improve skin quality in certain body areas, such as the knees. However, this body region has not yet been formally studied. Additional clinical evaluation is needed to better understand healing, potential side effects, patient experience, ease of use, and optimal treatment settings for body sites. This is especially important because body skin differs from facial skin in thickness, blood supply, movement, and mechanical stress, which may affect both safety and healing outcomes.

02

Conditions studied

  • Body
  • Knees

Keywords

  • Micro-Coring
  • Body Coring
  • ellacor
03

In context

Lead sponsor

Cytrellis Biosystems, Inc. is the lead sponsor of 10 studies on the registry; 2 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
22 Years to 70 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

  • Male or female age 22 to 70
  • With lax skin over one or both knees, physician discretion
  • Able to provide written , understand and willing to comply with all study related procedures and follow-up visits
  • Fitzpatrick Skin Type I to VI as evaluated by the Investigator

Exclusion criteria

Exclusion Criteria:

  • Pregnant women or nursing mothers
  • > 30 · Patients with dermatosis, open wounds, sores, or irritated skin in the treatment area
  • Patients with allergy to stainless steel or to topical, oral, or injected medications or preparations that may be used during the procedure, such as petrolatum, lidocaine, bupivacaine, chlorhexidine, or povidone-iodine
  • Patients with a history or presence of any bleeding disorder
  • Patients with dermatological or conditions that may affect the treatment outcome; these may include, but are not limited to: actinic keratosis, raised nevi, rosacea, melasma, active acne, cutaneous papules/nodules, active inflammatory lesions, dermatitis, psoriasis, cellulitis, urticarial folliculitis, acute inflammatory phase of scleroderma, rheumatoid arthritis, eczema, psoriasis, allergic dermatitis, collagen disorders, or lupus
  • Patients with systemic infections or acute local skin infections (as Hepatitis disorders type A, B, C, D, E or F or infection)
  • Patients who are on a high dose of anti-coagulants or blood-thinning substances, e.g., aspirin > 150 mg/day, nonsteroidal anti-inflammatory drugs (NSAIDs), warfarin, heparin, acetylsalicylic acid during the previous fourteen (14) days
  • Patients who are on courses of chemotherapy, high-dose use, or radiation in the treatment area
  • Patients with have undergone surgery of the treatment area within last twelve (12) months, or have any scars less than twelve (12) months old in the treatment area
  • Patients who have undergone injections of dermal fillers, fat, or botulinum toxin, as well as any minimally invasive/invasive skin treatment in the treatment area during the previous six (6) months
  • During the study time frame, unwilling to refrain from receiving these following aesthetic treatments within the same body region: toxin, filler, any skin resurfacing (laser, RF, ultrasound, microneedling, etc.);
  • Are currently enrolled in, or have overlapping participation in, another clinical trial outside of Cytrellis that includes treatment to the study area.
  • Unwilling to have photography taken for the study purpose
  • Any physical or psychological factors, in the judgment of the study investigator, may prevent subject from adhering to the study requirement correctly.
  • History of keloid formation or hypertrophic scarring
  • Excessive sun exposure and use of tanning beds or tanning creams within 30 days prior to treatment and for the duration of the study
Terms in these criteria, in plain language(6)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

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

Study arms

  • Other
    Micro-Coring on the knees

    ellacor as the micro-coring intervention

    Device: Micro-Coring

Interventions

  • DeviceMicro-Coring

    Non-thermal device

    Also known as: ellacor

06

What researchers measure

Primary outcomes

  1. Correct identification of before and after treatment photos

    The baseline photos (before) taken before the procedure, and 90-day post procedure visit photos (after) are randomized and presented to a panel of three blinded photographic evaluators. Study success is defined as 75% subjects or more show an improvement as agreed upon by a least two out of three evaluators.

    Time frame: 90 days

07

Study locations

1 site
  • Laser & Skin Surgery Center of Northern California
    Sacramento, California 95816, United States
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Feb 2026 (actual). Primary completion is estimated for Jun 2026, 4 months after the start.

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

Registered
Feb 2, 2026
First posted
Feb 13, 2026
StartActual
Feb 2, 2026
Primary completionEst.
Jun 2026
CompletionEst.
Aug 2026
Last update
Feb 13, 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.
No changes since tracking began. The registry record was last updated on Feb 13, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07409090
Lead sponsor
Cytrellis Biosystems, Inc.
Responsible party
Sponsor
First posted
Feb 13, 2026
Start date
Feb 2, 2026
Primary completion
Jun 2026 (estimated)
Completion
Aug 2026 (estimated)
Last update
Feb 13, 2026

Oversight

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

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No contact was published for this record. The registry link below has the sponsor’s details.

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