EMLA Topical Cream for Treatment of Pain in Patients Receiving Intra-Dermal Technetium 99 Injections for Lymphoscintigraphy for Skin Cancers

NCT ID: NCT06223659

Last Updated: 2025-03-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-19

Study Completion Date

2025-12-31

Brief Summary

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This phase II trial tests how well EMLA topical cream works in treating pain in patients with skin cancers receiving Technetium 99 injections for a lymphoscintigraphy mapping procedure. A lymphoscintigraphy mapping procedure is used to find the main or lead lymph node (tissue that fight infection) so it can be removed and checked for tumor cells. Using lymphoscintigraphy to highlight and then surgically remove lymph nodes is standard way to treat skin cancer for many patients. The Technetium 99 injections used for lymphoscintigraphy can be briefly painful due to the sensitivity of the nerve endings in the skin. The EMLA topical cream, which contains a numbing medicine to block pain from nerve endings, has been studied in breast cancer patients with a difference in pain reported, but this is the first time it has been studied in patients undergoing lymphoscintigraphy for skin cancer. This study may help researchers learn whether the use of EMLA cream may improve the associated pain at the time of the lymphoscintigraphy procedure.

Detailed Description

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PRIMARY OBJECTIVE:

I. Evaluate if the application of eutectic mixture of local anesthetics (EMLA) topical cream (2.5% lidocaine mixed with 2.5% prilocaine) prior to intra-dermal Technetium 99 sulfur colloid (Tc99 injection) for lymphoscintigraphy can improve associated pain.

OUTLINE: Patients are randomized to 1 of 2 cohorts.

COHORT 1: Patients apply EMLA cream topically to skin 30 minutes prior to Tc99 lymphoscintigraphy procedure.

COHORT 2: Patients apply placebo cream topically to skin 30 minutes prior to Tc99 lymphoscintigraphy procedure.

Conditions

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Cutaneous Melanoma Merkel Cell Carcinoma Skin Squamous Cell Carcinoma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Cohort 2 (placebo cream)

Patients apply placebo cream topically to skin 30 minutes prior to Tc99 lymphoscintigraphy procedure.

Group Type PLACEBO_COMPARATOR

Placebo Administration

Intervention Type DRUG

Apply topically to skin

Questionnaire Administration

Intervention Type OTHER

Ancillary studies

Cohort 1 (EMLA cream)

Patients apply EMLA cream topically to skin 30 minutes prior to Tc99 lymphoscintigraphy procedure.

Group Type EXPERIMENTAL

Eutectic Mixture of Local Anesthetics

Intervention Type DRUG

Apply topically to skin

Questionnaire Administration

Intervention Type OTHER

Ancillary studies

Interventions

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Eutectic Mixture of Local Anesthetics

Apply topically to skin

Intervention Type DRUG

Placebo Administration

Apply topically to skin

Intervention Type DRUG

Questionnaire Administration

Ancillary studies

Intervention Type OTHER

Other Intervention Names

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EMLA Lidocaine-Prilocaine Eutectic Mixture Lidocaine/Prilocaine Oraqix

Eligibility Criteria

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Inclusion Criteria

* Biologic males or females
* 18 - 99 years of age
* Histologically confirmed cutaneous melanoma, Merkel cell carcinoma, squamous cell carcinoma, or other cutaneous malignancy for which lymphoscintigraphy and sentinel lymph node biopsy has been recommended.

Exclusion Criteria

* Known allergy or intolerance to EMLA cream, lidocaine, prilocaine, or any other local anesthetic
* History of adhesive allergy
* Contraindication to Tc99 injection for sentinel lymph node mapping
* Incarcerated patients
* Patients incapable of independently providing consent
* Mucosal or genital lymphoscintigraphy site
* Pregnancy
* Participant self-declared or Ohio State University (OSU) medical chart listing chronic pain as a pre-existing diagnosis
* Participants with chronic pain as defined by the Centers for Disease Control and Prevention (CDC):"pain lasting 3 months or more that can be caused by a disease or condition, injury, medical treatment, or unknown reason" excluding those with stable co-morbid conditions such as peripheral neuropathy, fibromyalgia, arthritis, and cancer-related pain who do not require narcotics. Patients who require narcotics at any time within the 7-day period leading up to the procedure
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ohio State University Comprehensive Cancer Center

OTHER

Sponsor Role lead

Responsible Party

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Carlo Contreras

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Carlo M Contreras, MD

Role: PRINCIPAL_INVESTIGATOR

Ohio State University Comprehensive Cancer Center

Locations

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Ohio State University Comprehensive Cancer Center

Columbus, Ohio, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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The Ohio State University Comprehensive Cancer Center

Role: CONTACT

800-293-5066

Facility Contacts

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Carlo M. Contreras, MD

Role: primary

614-366-3681

Related Links

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Other Identifiers

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NCI-2023-10465

Identifier Type: REGISTRY

Identifier Source: secondary_id

OSU-23046

Identifier Type: -

Identifier Source: org_study_id

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