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Effect of Ultrasound Guided Laser Ablation Therapy on Symptomatic Benign Thyroid Nodules

Effect of Ultrasound Guided Laser Ablation Therapy on Symptomatic Benign Thyroid Nodules

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04277455
Enrollment
10
Registered
2020-02-20
Start date
2020-10-26
Completion date
2023-09-28
Last updated
2024-06-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Thyroid Nodule

Keywords

Benign thyroid nodule

Brief summary

This is a prospective trial to evaluate the effects of laser ablation on symptomatic benign thyroid nodules. The study is designed to assess the clinical efficacy, safety, tolerability and impact on symptoms of single ultrasound guided laser ablation treatment of symptomatic benign thyroid nodules. Approximately 20 subjects will undergo laser ablation of symptomatic benign nodules.

Detailed description

* Laser ablation will be carried out in a single session under sterile conditions and ultrasound guidance with the support of Echolaser Smart Interface. * Local anesthesia will be offered. * The treatment plan will be assisted using the Echolaser Smart Interface. * Depending on the shape and volume of the nodule to be treated, the investigator will determine whether one or two needles positioned parallel to each other along the longitudinal axis of the nodule will need to be used for treatment. * Under ultrasound guidance, the investigator will introduce up to two 21-gauge introducer needles through the Guide kit into the target thyroid lesion percutaneously. * Once the correct positioning of the needles has been verified under ultrasound imaging, an optical fiber is introduced into each needle with its tip protruding 5 mm out of the needle and in direct contact with the tissue to be ablated. * Laser beam emission through the flat-tipped optical fiber produces a lesion (coagulation volume) within the nodule of an ellipsoidal shape, one third of which is positioned behind the tip of the fiber, and two-thirds in front. * Each application session will last between 400 and 600 seconds under a laser source power output of 3W. An application is defined as the time between turning on and turning off the laser source. * Up to 3 applications may be carried out during the same treatment session by pulling back along the needle and fiber axis by 0.5-1.0-1.5 cm to allow for treatment of tissue area not treated with previous application. * Following completion of the laser ablation, the fibers will be removed followed by extraction of the needle(s). Hemostasis will be achieved at the site of needle insertion by applying pressure to the site. * External bleeding will be assessed by visual inspection following extraction of the needle. * Internal bleeding and potential nodule rupture will be assessed by ultrasound of the thyroid/neck with doppler flow assessment by the investigator following needle extraction using GE Logiq P6 ultrasound.The site will be covered with a sterile dressing/bandage.

Interventions

DEVICELaser ablation of benign thyroid nodule

Ablating symptomatic benign thyroid nodules using laser

Sponsors

Mercy Research
CollaboratorOTHER
Johnson Thomas
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Prospective

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Males or females, Age ≥18 years * Thyroid Stimulating Hormone (TSH) within normal limits * Presence of thyroid nodule \>29 mm and ≤60 mm in the longest dimension on ultrasound imaging * Symptoms from thyroid nodule - tightness or pressure in neck, neck tenderness, neck pain, difficulty swallowing, voice changes, shortness of breath or cosmetic disfigurement * Solid thyroid nodule with less than 20% cystic component * Cytological benign nodule proven by previous biopsy within 2 years * Ability to place the laser tip inside the nodule and to keep vital structures (i.e. trachea and esophagus) outside the zone of injury. To achieve this safe zone, we will leave a minimum of 17 mm distance between the fiber tip anterior to the vital structures and 10 mm from the fiber tip in all other dimensions. * Not on anticoagulants or anticoagulants stopped for appropriate amount of time based on the pharmacology of the drug * Ability to understand and willingness to provide informed consent

Exclusion criteria

* Pregnancy * Diagnosis of Hyperthyroidism * Malignant thyroid nodule * Egg shell or coarse calcification in the thyroid nodule * Patient on anticoagulation which cannot be stopped due to medical reasons * Coagulopathy * Thyroid nodules in contact with trachea, esophagus or major blood vessels * Prior neck surgery * Prior radiation to head and neck * Previous radioactive iodine treatment * Current iodine supplementation * Current anti-thyroid medication * Biotin supplementation within 2 days prior to enrollment * Allergy to Ethyl chloride spray or lidocaine * Physical and psychological conditions that prevent safe administration of the procedure as determined by the investigator * Adults not able to consent * Prisoners * Individuals who cannot read and understand English

Design outcomes

Primary

MeasureTime frameDescription
Cosmetic Assessment at 3,6 and 12 Months and Immediately After Laser Ablation Measured Using a Numerical Scale3 months, 6 months, and 12 months after procedurePatients perceived cosmetic appearance will be measured using a numerical scale at baseline, immediately after procedure and then at 3, 6 and 12 months after procedure using following question. On a scale from 0 to 10, how much does your thyroid nodule affect your appearance? 0 being the best outcome and 10 being the worst outcome.
Change in Radiographic Volume of Thyroid Nodule From Baseline at 3, 6 and 12 Months After Laser Ablation12 monthsPercentage change from baseline volume will be calculated at 3, 6 and 12 months after laser treatment.
Change in the Thyroid Function After Laser Treatment Assessed by the Measurement of TSH and Free T4 at 3, 6 and 12 Months After Laser Ablation12 monthsNumber of patients who develops hypo or hyperthyroidism 3,6 and 12 months after laser treatment.
Change in Doppler Grade at 3, 6, and 12 Months After Laser Ablation12 monthsNumber of patients who had changes in blood flow inside the thyroid nodule as evidenced by change in Doppler grade.
Change in Thyroid Antibody Levels 3,6 and 12 Months After Laser Ablation12 monthsNumber of patients who develops new thyroid antibodies 3,6, and 12 months after laser ablation

Secondary

MeasureTime frameDescription
Tolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.Post-procedure on the day of procedureParticipants will be asked to answer the following questionnaire after the procedure. How likely is it that you would have the laser ablation procedure again? 1 = Very Likely 2 = Somewhat Likely 3 = Not Likely
Number of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.01 yearTreatment related adverse events will be captured using CTCAE v4,0 format
Reported Pain Score on the Numerical Scale 3 Months Post Procedure.3 monthsChange in pain will be measured using a numerical scale at baseline, immediately post procedure and 3 months after procedure using the following question. Rate your pain on a scale from 0 to 10 where 0 is no pain and 10 is the worst pain possible.
Reported Pain Score on the Numerical Scale Immediately Post Procedure.Immediately post-procedureChange in pain will be measured using a numerical scale at baseline, immediately post procedure and 3 months after procedure using the following question. Rate your pain on a scale from 0 to 10 where 0 is no pain and 10 is the worst pain possible.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment Arm
Patients will receive laser treatment for benign symptomatic nodules Laser ablation of benign thyroid nodule: Ablating symptomatic benign thyroid nodules using laser
10
Total10

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up1

Baseline characteristics

CharacteristicTreatment Arm
Age, Continuous56 years
Baseline antithyroid antibodies
Thyroglobulin Antibodies
11 IU/mL
Baseline antithyroid antibodies
TPO Antibodies
6.8 IU/mL
Baseline Free T33.12 pmol/L
Baseline Free T41.26 ng/dL
Baseline pain score
Pain score of 0
6 participants
Baseline pain score
Pain score of 1
2 participants
Baseline pain score
Pain score of 4
2 participants
Baseline status of vocal fold structure and function
Presented as abnormal
0 Participants
Baseline status of vocal fold structure and function
Presented as normal
10 Participants
Baseline symptoms
Reported cosmetic disfigurement
5 participants
Baseline symptoms
Reported difficulty swallowing
7 participants
Baseline symptoms
Reported neck pain
1 participants
Baseline symptoms
Reported neck tenderness
6 participants
Baseline symptoms
Reported neck tightness
9 participants
Baseline symptoms
Reported shortness of breath
2 participants
Baseline symptoms
Reported voice changes
2 participants
Baseline TSH1.22 µU/mL
Baseline visual inspection of the neck at 1 m
Presented with no visible nodule at a distance of > 1 meter
0 participants
Baseline visual inspection of the neck at 1 m
Presented with visible nodule at a distance of > 1 meter
10 participants
Baseline volume of the index thyroid nodule17.43 mm^3
Cosmetic assessment at baseline2.7 score on a scale
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
10 participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
2 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 10
other
Total, other adverse events
10 / 10
serious
Total, serious adverse events
0 / 10

Outcome results

Primary

Change in Doppler Grade at 3, 6, and 12 Months After Laser Ablation

Number of patients who had changes in blood flow inside the thyroid nodule as evidenced by change in Doppler grade.

Time frame: 12 months

Population: 9 subjects completed the 12-month post-procedure study visit. One patient did not return for the 12-month follow up visit and was determined to be lost to follow-up.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment ArmChange in Doppler Grade at 3, 6, and 12 Months After Laser Ablation3 months1 Participants
Treatment ArmChange in Doppler Grade at 3, 6, and 12 Months After Laser Ablation6 months0 Participants
Treatment ArmChange in Doppler Grade at 3, 6, and 12 Months After Laser Ablation12 months0 Participants
Primary

Change in Radiographic Volume of Thyroid Nodule From Baseline at 3, 6 and 12 Months After Laser Ablation

Percentage change from baseline volume will be calculated at 3, 6 and 12 months after laser treatment.

Time frame: 12 months

Population: 9 subjects completed the 12-month post-procedure study visit. One patient did not return for the 12-month follow up visit and was determined to be lost to follow-up.

ArmMeasureGroupValue (MEAN)
Treatment ArmChange in Radiographic Volume of Thyroid Nodule From Baseline at 3, 6 and 12 Months After Laser AblationAverage change in volume of thyroid nodule at the 3-months post-procedure study visit63.4 percentage of volume reduction
Treatment ArmChange in Radiographic Volume of Thyroid Nodule From Baseline at 3, 6 and 12 Months After Laser AblationAverage change in volume of thyroid nodule from baseline to 12-months71.087 percentage of volume reduction
Primary

Change in the Thyroid Function After Laser Treatment Assessed by the Measurement of TSH and Free T4 at 3, 6 and 12 Months After Laser Ablation

Number of patients who develops hypo or hyperthyroidism 3,6 and 12 months after laser treatment.

Time frame: 12 months

ArmMeasureGroupValue (NUMBER)
Treatment ArmChange in the Thyroid Function After Laser Treatment Assessed by the Measurement of TSH and Free T4 at 3, 6 and 12 Months After Laser AblationDemonstrated a clinically significant change0 participants
Treatment ArmChange in the Thyroid Function After Laser Treatment Assessed by the Measurement of TSH and Free T4 at 3, 6 and 12 Months After Laser AblationDid not demonstrate a clinically significant change10 participants
Primary

Change in Thyroid Antibody Levels 3,6 and 12 Months After Laser Ablation

Number of patients who develops new thyroid antibodies 3,6, and 12 months after laser ablation

Time frame: 12 months

ArmMeasureGroupValue (NUMBER)
Treatment ArmChange in Thyroid Antibody Levels 3,6 and 12 Months After Laser AblationDemonstrated a clinically significant change0 participants
Treatment ArmChange in Thyroid Antibody Levels 3,6 and 12 Months After Laser AblationDid not demonstrate a clinically significant change10 participants
Primary

Cosmetic Assessment at 3,6 and 12 Months and Immediately After Laser Ablation Measured Using a Numerical Scale

Patients perceived cosmetic appearance will be measured using a numerical scale at baseline, immediately after procedure and then at 3, 6 and 12 months after procedure using following question. On a scale from 0 to 10, how much does your thyroid nodule affect your appearance? 0 being the best outcome and 10 being the worst outcome.

Time frame: 3 months, 6 months, and 12 months after procedure

Population: 9 subjects completed the 12-month post-procedure study visit. One patient did not return for the 12-month follow up visit and was determined to be lost to follow-up.

ArmMeasureGroupValue (MEAN)
Treatment ArmCosmetic Assessment at 3,6 and 12 Months and Immediately After Laser Ablation Measured Using a Numerical ScaleReported Immediately after procedure3 score on a scale
Treatment ArmCosmetic Assessment at 3,6 and 12 Months and Immediately After Laser Ablation Measured Using a Numerical Scale3 months0.9 score on a scale
Treatment ArmCosmetic Assessment at 3,6 and 12 Months and Immediately After Laser Ablation Measured Using a Numerical Scale6 months0.6 score on a scale
Treatment ArmCosmetic Assessment at 3,6 and 12 Months and Immediately After Laser Ablation Measured Using a Numerical Scale12 months.78 score on a scale
Secondary

Number of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0

Treatment related adverse events will be captured using CTCAE v4,0 format

Time frame: 1 year

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Feeling of a knot in neck at needle stick site1 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Sensation of lump in throat1 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Burning sensation in neck at needle stick site1 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Sore throat1 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Coughing1 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Bruising to neck2 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Pain/discomfort with swallowing2 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Difficulty swallowing1 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Swelling at needle stick site6 Participants
Treatment ArmNumber of Participants With Treatment Related Adverse Events as Assessed by CTCAE v4.0Pain/soreness in neck10 Participants
Secondary

Reported Pain Score on the Numerical Scale 3 Months Post Procedure.

Change in pain will be measured using a numerical scale at baseline, immediately post procedure and 3 months after procedure using the following question. Rate your pain on a scale from 0 to 10 where 0 is no pain and 10 is the worst pain possible.

Time frame: 3 months

ArmMeasureGroupValue (NUMBER)
Treatment ArmReported Pain Score on the Numerical Scale 3 Months Post Procedure.Pain score of 010 participants
Treatment ArmReported Pain Score on the Numerical Scale 3 Months Post Procedure.Pain score greater than 00 participants
Secondary

Reported Pain Score on the Numerical Scale Immediately Post Procedure.

Change in pain will be measured using a numerical scale at baseline, immediately post procedure and 3 months after procedure using the following question. Rate your pain on a scale from 0 to 10 where 0 is no pain and 10 is the worst pain possible.

Time frame: Immediately post-procedure

ArmMeasureValue (MEAN)
Treatment ArmReported Pain Score on the Numerical Scale Immediately Post Procedure.5.5 pain score on a scale
Secondary

Tolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.

Participants will be asked to answer the following questionnaire after the procedure. How likely is it that you would have the laser ablation procedure again? 1 = Very Likely 2 = Somewhat Likely 3 = Not Likely

Time frame: Post-procedure on the day of procedure

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.1 = Very Likely7 Participants
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.2 = Somewhat Likely3 Participants
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.3 = Not Likely0 Participants
Secondary

Tolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.

Participants will be asked to answer the following questionnaire after the procedure. How satisfied were you with the length of the laser ablation procedure? 1= Satisfied 2 = Neither 3 = Dissatisfied

Time frame: Post-procedure on day of procedure

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.1= Satisfied7 Participants
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.2 = Neither2 Participants
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.3 = Dissatisfied1 Participants
Secondary

Tolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.

Participants will be asked to answer the following questionnaire after the procedure. How much discomfort did you have with the laser ablation procedure? 1= Less than I thought 2 = About what I thought 3 = More than I thought

Time frame: Post-procedure on day of procedure

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.1= Less than I thought1 Participants
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.2 = About what I thought3 Participants
Treatment ArmTolerability of Ultrasound Guided Percutaneous Laser Ablation for Treatment of Symptomatic Benign Thyroid Nodules as Reported Through a Questionnaire After the Procedure.3 = More than I thought6 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026