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NFX-179 Topical Gel Treatment in Adults With Neurofibromatosis 1 (NF1) and Cutaneous Neurofibromas (cNF)

A Randomized, Double-Blind, Vehicle-Controlled, Parallel Group Phase 2a Study to Determine Safety, Tolerability, Pharmacokinetics, and Pharmacodynamic Activity of NFX-179 Gel in Subjects With Cutaneous Neurofibromas

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04435665
Enrollment
48
Registered
2020-06-17
Start date
2020-08-21
Completion date
2021-04-14
Last updated
2022-08-09

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

Conditions

Cutaneous Neurofibroma, Neurofibromatosis 1

Keywords

NFX-179

Brief summary

This study will enroll and treat subjects with cutaneous neurofibromas with NFX-179, a topical study drug. Eligible subjects will receive treatment for 28 days and be observed by a study doctor for approximately 56 days. Subjects will be randomly assigned to 1 of 4 treatment groups. 3 of the treatment groups will receive a specific dose NFX-179, and 1 group will receive placebo. The subject, study doctor, and NFlection Therapeutics will not know what treatment group each subject is assigned. Study participation requires at least 7 clinic visits, blood, urine, and tissue collection, images of the treated cutaneous neurofibromas, electrocardiograms, and information regarding the subject's medical and disease history.

Interventions

gel for topical administration

DRUGVehicle Gel

vehicle gel for topical administration

Sponsors

NFlection Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Subject is at least 18 years of age 2. Subject must provide written informed consent prior to any study procedures 3. Subject must have a clinical diagnosis of NF1 4. Subject has 6 Study cNF Tumors (5 Target cNF Tumors \[1 on the face; 4 on the anterior trunk or upper extremities\] that will be treated with the assigned study medication;1 Untreated cNF Tumor on the anterior trunk or upper extremities) that each meet the following criteria: * Has, in the investigator's opinion, a clinically typical appearance * Is dome shaped * Is not pedunculated * Is a discrete tumor * Is not irritated * Is not in an area subject to repeated trauma (e.g., area that is shaved, on the beltline, under a bra strap, etc.) * Does not have an active cutaneous infection * Has a diameter that is ≥5mm and ≤10mm * Has a height of ≥2mm * Is, when centered in the center of the provided template, the only cNF tumor visible * Is not within 5mm of the orbital rim. 5. Subject is willing to have the 5 Target cNF Tumors and the 1 Untreated cNF Tumor excised at the end of the treatment period 6. Subject is willing to have hair in the area surrounding the Target cNF Tumors shaved, if necessary, to obtain photographs 7. Subject is willing to minimize exposure of each Target cNF to natural and artificial ultraviolet radiation 8. Subject is willing to forego treatment of the Target cNF Tumors, except protocol specified therapy, during the study 9. Female subjects who are women of childbearing potential must have a negative urine pregnancy test result and be willing to use a protocol approved, contraceptive method for the duration of the study 10. Subject is willing and able to follow all study instructions and to attend all study visits.

Exclusion criteria

1. Subject has applied any of the following topical products in the previous 30 days on or in proximity to any Study cNF Tumor that, in the investigator's opinion, impairs evaluation of any the tumor or which exposes the subject to an unacceptable risk by study participation: * Corticosteroids * Retinoids (e.g., tazarotene, tretinoin, adapalene) * \> 5% of an alpha-hydroxy acid (e.g., glycolic acid, lactic acid) * Fluorouracil * Imiquimod 2. Any Study cNF Tumor has ever been treated with an MEK inhibitor or a BRAF inhibitor 3. The subject has used any of the following systemic medications in the noted time period: * Retinoids (e.g., etretinate, isotretinoin) within the previous 90 days * MEK inhibitors within the previous 180 days * BRAF inhibitors within the previous 180 days 4. Subject has a history of hypersensitivity to any of the ingredients in the study medications 5. Subject has any known intercurrent illness or physical condition that would, in the investigator's opinion, impair evaluation of a Target cNF Tumor or which exposes the subject to an unacceptable risk by study participation 6. Subject has, in the investigator's opinion, clinically relevant history of liver disease, including viral hepatitis, current alcohol abuse, or cirrhosis 7. Subject has a history of metastatic disease, or active cancer (excluding nonmelanoma skin cancer, Stage I cervical cancer, ductal carcinoma in situ of the breast, or Stage 0 chronic lymphocytic lymphoma) within the previous 5 years 8. Subject has any condition (e.g., other skin conditions or diseases, metabolic dysfunction, physical examination findings, clinical laboratory findings) or situation (e.g., vacation, scheduled surgery) that would, in the investigator's opinion, impair evaluation of a Target cNF Tumor or which exposes the subject to an unacceptable risk by study participation 9. Subject has participated in an investigational drug trial in which administration of an investigational study medication occurred within the previous 30 days

Design outcomes

Primary

MeasureTime frameDescription
Phospho-erk (p-ERK) Levels of Target cNF Tumors in NFX-179 Gel Group and Vehicle Gel Group After 28 Days of Once-daily (QD) ApplicationBaseline through Week 4Pharmacodynamic activity (biochemical and physiologic effects of drugs) of NFX-179 Gel as defined by suppression of phospho-ERK (p-ERK) levels in Target cNF Tumors in each NFX-179 Gel group compared with the Vehicle Gel group after 28 days of once-daily (QD) application will be measured at Week 4
Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability AssessmentBaseline through Week 4Safety and tolerability will be measured via a local tolerability assessment. The investigator will assess erythema, edema, scabbing/crusting, vesiculation, and erosion. The subject will assess stinging, burning, and pruritus. All assessments are performed using a 4-point scale (0 none, 1 mild, 2 moderate, 3 severe).
Assessment of Adverse EventsBaseline through Week 8Assessment of adverse events (AEs)

Secondary

MeasureTime frameDescription
Percent Change in cNF Tumor Volume (Cubic Millimeters)Baseline through Week 4Percent change in cNF tumor volume after 28 days of QD applications of NFX-179 gel based on tumor volume derived from ruler measurements.
Change in Subject Self-Assessment of Tumor Severity ScoreBaseline through Week 4The Subject Self-Assessment is the subject's assessment of the average overall severity of each Target cNF at a particular time point and is not a comparison with any other time point. The Subject Self-Assessment is a 5-point measuring tumor severity (0 clear/none, 1 almost clear, 2 mild, 3 moderate, 4 severe). The assessment is performed at the Baseline visit and week 4 visit.
Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationBaseline through Week 4Systemic exposure of NFX-179 will be measured during the 28 days of QD applications at select investigative sites. Pharmacokinetic samples will be drawn at the baseline visit and week 4 visit. 5 time point samples will be collected at the week 4 visit.
Change in Physician Assessment of Tumor Severity ScoreBaseline through Week 4Effect of treatment with The Physician Tumor Assessment is the investigator's assessment of the average overall severity of each Target cNF tumor at a particular time point. The Physician Tumor Assessment is a 5-point measuring tumor severity (0 clear/none, 1 almost clear, 2 mild, 3 moderate, 4 severe). The assessment is performed at the Baseline visit and week 4 visit.

Countries

United States

Participant flow

Participants by arm

ArmCount
NFX-179 Gel Low (0.05%)
NFX-179 Gel for topical administration, once daily for 28 days NFX-179 Gel 0.05% NFX-179 Gel: gel for topical administration
12
NFX-179 Gel Mid (0.15%)
NFX-179 Gel for topical administration, once daily for 28 days NFX-179 Gel 0.15% NFX-179 Gel: gel for topical administration
11
NFX-179 Gel High (0.50%)
NFX-179 Gel for topical administration, once daily for 28 days NFX-179 Gel 0.50% NFX-179 Gel: gel for topical administration
12
Vehicle Arm (Placebo)
Vehicle Gel, for topical administration, once daily for 28 days Vehicle Gel placebo Vehicle Gel: vehicle gel for topical administration
13
Total48

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyLost to Follow-up0001

Baseline characteristics

CharacteristicNFX-179 Gel Low (0.05%)NFX-179 Gel Mid (0.15%)NFX-179 Gel High (0.50%)Vehicle Arm (Placebo)Total
Age, Continuous51.1 years49.5 years43.5 years45.2 years47.8 years
Race/Ethnicity, Customized
Asian
0 Participants3 Participants0 Participants1 Participants4 Participants
Race/Ethnicity, Customized
Black/African American
1 Participants1 Participants2 Participants1 Participants5 Participants
Race/Ethnicity, Customized
Hispanic or Latino
2 Participants0 Participants1 Participants0 Participants3 Participants
Race/Ethnicity, Customized
Non-white
1 Participants4 Participants2 Participants2 Participants9 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
9 Participants7 Participants9 Participants11 Participants36 Participants
Race/Ethnicity, Customized
Not reported
1 Participants4 Participants2 Participants2 Participants9 Participants
Race/Ethnicity, Customized
White
11 Participants7 Participants10 Participants11 Participants39 Participants
Sex: Female, Male
Female
9 Participants8 Participants8 Participants7 Participants32 Participants
Sex: Female, Male
Male
3 Participants3 Participants4 Participants6 Participants16 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 130 / 120 / 110 / 12
other
Total, other adverse events
2 / 132 / 122 / 114 / 12
serious
Total, serious adverse events
0 / 130 / 120 / 110 / 12

Outcome results

Primary

Assessment of Adverse Events

Assessment of adverse events (AEs)

Time frame: Baseline through Week 8

ArmMeasureGroupValue (NUMBER)
Vehicle Arm (Placebo)Assessment of Adverse EventsNumber of subjects withdrawn due to AEs0 Subjects
Vehicle Arm (Placebo)Assessment of Adverse EventsSubjects with severe treatment-emergent AEs0 Subjects
Vehicle Arm (Placebo)Assessment of Adverse EventsSubjects with moderate treatment-emergent AEs1 Subjects
Vehicle Arm (Placebo)Assessment of Adverse EventsNumber of subjects with treatment-emergent AEs2 Subjects
Vehicle Arm (Placebo)Assessment of Adverse EventsNumber of subects with related treatment-emergent AEs0 Subjects
Vehicle Arm (Placebo)Assessment of Adverse EventsSubjects with mild treatment-emergent AEs1 Subjects
NFX-179 Gel Low (0.05%)Assessment of Adverse EventsSubjects with moderate treatment-emergent AEs2 Subjects
NFX-179 Gel Low (0.05%)Assessment of Adverse EventsSubjects with mild treatment-emergent AEs0 Subjects
NFX-179 Gel Low (0.05%)Assessment of Adverse EventsNumber of subjects with treatment-emergent AEs2 Subjects
NFX-179 Gel Low (0.05%)Assessment of Adverse EventsNumber of subjects withdrawn due to AEs0 Subjects
NFX-179 Gel Low (0.05%)Assessment of Adverse EventsSubjects with severe treatment-emergent AEs0 Subjects
NFX-179 Gel Low (0.05%)Assessment of Adverse EventsNumber of subects with related treatment-emergent AEs0 Subjects
NFX-179 Gel Mid (0.15%)Assessment of Adverse EventsSubjects with mild treatment-emergent AEs0 Subjects
NFX-179 Gel Mid (0.15%)Assessment of Adverse EventsSubjects with moderate treatment-emergent AEs1 Subjects
NFX-179 Gel Mid (0.15%)Assessment of Adverse EventsNumber of subjects withdrawn due to AEs0 Subjects
NFX-179 Gel Mid (0.15%)Assessment of Adverse EventsNumber of subects with related treatment-emergent AEs0 Subjects
NFX-179 Gel Mid (0.15%)Assessment of Adverse EventsSubjects with severe treatment-emergent AEs0 Subjects
NFX-179 Gel Mid (0.15%)Assessment of Adverse EventsNumber of subjects with treatment-emergent AEs1 Subjects
NFX-179 Gel High (0.50%)Assessment of Adverse EventsSubjects with severe treatment-emergent AEs0 Subjects
NFX-179 Gel High (0.50%)Assessment of Adverse EventsSubjects with mild treatment-emergent AEs3 Subjects
NFX-179 Gel High (0.50%)Assessment of Adverse EventsSubjects with moderate treatment-emergent AEs0 Subjects
NFX-179 Gel High (0.50%)Assessment of Adverse EventsNumber of subjects with treatment-emergent AEs3 Subjects
NFX-179 Gel High (0.50%)Assessment of Adverse EventsNumber of subects with related treatment-emergent AEs1 Subjects
NFX-179 Gel High (0.50%)Assessment of Adverse EventsNumber of subjects withdrawn due to AEs0 Subjects
Primary

Phospho-erk (p-ERK) Levels of Target cNF Tumors in NFX-179 Gel Group and Vehicle Gel Group After 28 Days of Once-daily (QD) Application

Pharmacodynamic activity (biochemical and physiologic effects of drugs) of NFX-179 Gel as defined by suppression of phospho-ERK (p-ERK) levels in Target cNF Tumors in each NFX-179 Gel group compared with the Vehicle Gel group after 28 days of once-daily (QD) application will be measured at Week 4

Time frame: Baseline through Week 4

Population: The p-ERK analysis included all available p-ERK data from tumors determined by histology to be cNF tumors. Missing data were due to missing or non-analyzable tumor samples or tumor samples shown to come from non-cNF tumors upon histologic review. Therefore the number of participants is not the same as those in the participant flow.

ArmMeasureValue (MEAN)Dispersion
Vehicle Arm (Placebo)Phospho-erk (p-ERK) Levels of Target cNF Tumors in NFX-179 Gel Group and Vehicle Gel Group After 28 Days of Once-daily (QD) Application0.3054 % reduction in pERK to total ERKStandard Deviation 0.1369
NFX-179 Gel Low (0.05%)Phospho-erk (p-ERK) Levels of Target cNF Tumors in NFX-179 Gel Group and Vehicle Gel Group After 28 Days of Once-daily (QD) Application0.2734 % reduction in pERK to total ERKStandard Deviation 0.1257
NFX-179 Gel Mid (0.15%)Phospho-erk (p-ERK) Levels of Target cNF Tumors in NFX-179 Gel Group and Vehicle Gel Group After 28 Days of Once-daily (QD) Application0.2267 % reduction in pERK to total ERKStandard Deviation 0.1272
NFX-179 Gel High (0.50%)Phospho-erk (p-ERK) Levels of Target cNF Tumors in NFX-179 Gel Group and Vehicle Gel Group After 28 Days of Once-daily (QD) Application0.1627 % reduction in pERK to total ERKStandard Deviation 0.0686
Primary

Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessment

Safety and tolerability will be measured via a local tolerability assessment. The investigator will assess erythema, edema, scabbing/crusting, vesiculation, and erosion. The subject will assess stinging, burning, and pruritus. All assessments are performed using a 4-point scale (0 none, 1 mild, 2 moderate, 3 severe).

Time frame: Baseline through Week 4

ArmMeasureGroupValue (NUMBER)
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of moderate erythema0 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild edema0 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild burning6 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of scabbing/crusting0 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild pruritus2 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of moderate pruritus0 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild erythema0 events
Vehicle Arm (Placebo)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild stinging0 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild edema0 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of moderate erythema0 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild erythema2 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild pruritus5 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild stinging0 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of scabbing/crusting0 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild burning0 events
NFX-179 Gel Low (0.05%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of moderate pruritus1 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of moderate pruritus2 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild edema1 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild stinging0 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild pruritus7 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild burning0 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of moderate erythema0 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild erythema1 events
NFX-179 Gel Mid (0.15%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of scabbing/crusting0 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of scabbing/crusting1 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of moderate pruritus0 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild erythema1 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of mild edema0 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild pruritus4 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild burning0 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentsubject reported instances of mild stinging4 events
NFX-179 Gel High (0.50%)Safety and Tolerability of NFX-179 Gel Measured by Local Tolerability Assessmentinvestigator reported instances of moderate erythema1 events
Secondary

Change in Physician Assessment of Tumor Severity Score

Effect of treatment with The Physician Tumor Assessment is the investigator's assessment of the average overall severity of each Target cNF tumor at a particular time point. The Physician Tumor Assessment is a 5-point measuring tumor severity (0 clear/none, 1 almost clear, 2 mild, 3 moderate, 4 severe). The assessment is performed at the Baseline visit and week 4 visit.

Time frame: Baseline through Week 4

ArmMeasureGroupValue (MEAN)Dispersion
Vehicle Arm (Placebo)Change in Physician Assessment of Tumor Severity ScoreVisit 22.74 Change in Investigator Assessment scoreStandard Deviation 0.53
Vehicle Arm (Placebo)Change in Physician Assessment of Tumor Severity ScoreVisit 52.51 Change in Investigator Assessment scoreStandard Deviation 0.58
NFX-179 Gel Low (0.05%)Change in Physician Assessment of Tumor Severity ScoreVisit 53.58 Change in Investigator Assessment scoreStandard Deviation 0.62
NFX-179 Gel Low (0.05%)Change in Physician Assessment of Tumor Severity ScoreVisit 22.46 Change in Investigator Assessment scoreStandard Deviation 0.62
NFX-179 Gel Mid (0.15%)Change in Physician Assessment of Tumor Severity ScoreVisit 22.60 Change in Investigator Assessment scoreStandard Deviation 0.57
NFX-179 Gel Mid (0.15%)Change in Physician Assessment of Tumor Severity ScoreVisit 52.50 Change in Investigator Assessment scoreStandard Deviation 0.59
NFX-179 Gel High (0.50%)Change in Physician Assessment of Tumor Severity ScoreVisit 22.65 Change in Investigator Assessment scoreStandard Deviation 0.7
NFX-179 Gel High (0.50%)Change in Physician Assessment of Tumor Severity ScoreVisit 52.70 Change in Investigator Assessment scoreStandard Deviation 0.67
Secondary

Change in Subject Self-Assessment of Tumor Severity Score

The Subject Self-Assessment is the subject's assessment of the average overall severity of each Target cNF at a particular time point and is not a comparison with any other time point. The Subject Self-Assessment is a 5-point measuring tumor severity (0 clear/none, 1 almost clear, 2 mild, 3 moderate, 4 severe). The assessment is performed at the Baseline visit and week 4 visit.

Time frame: Baseline through Week 4

ArmMeasureGroupValue (MEAN)Dispersion
Vehicle Arm (Placebo)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 22.75 change in subject assessment scoreStandard Deviation 0.73
Vehicle Arm (Placebo)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 52.50 change in subject assessment scoreStandard Deviation 0.6
NFX-179 Gel Low (0.05%)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 52.76 change in subject assessment scoreStandard Deviation 0.55
NFX-179 Gel Low (0.05%)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 22.81 change in subject assessment scoreStandard Deviation 0.53
NFX-179 Gel Mid (0.15%)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 22.71 change in subject assessment scoreStandard Deviation 0.38
NFX-179 Gel Mid (0.15%)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 52.50 change in subject assessment scoreStandard Deviation 0.56
NFX-179 Gel High (0.50%)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 22.38 change in subject assessment scoreStandard Deviation 0.71
NFX-179 Gel High (0.50%)Change in Subject Self-Assessment of Tumor Severity ScoreVisit 52.39 change in subject assessment scoreStandard Deviation 0.61
Secondary

Percent Change in cNF Tumor Volume (Cubic Millimeters)

Percent change in cNF tumor volume after 28 days of QD applications of NFX-179 gel based on tumor volume derived from ruler measurements.

Time frame: Baseline through Week 4

ArmMeasureValue (MEAN)Dispersion
Vehicle Arm (Placebo)Percent Change in cNF Tumor Volume (Cubic Millimeters)-8.0 percentage changeStandard Deviation 18.2
NFX-179 Gel Low (0.05%)Percent Change in cNF Tumor Volume (Cubic Millimeters)-1.6 percentage changeStandard Deviation 22.1
NFX-179 Gel Mid (0.15%)Percent Change in cNF Tumor Volume (Cubic Millimeters)-11.9 percentage changeStandard Deviation 29.4
NFX-179 Gel High (0.50%)Percent Change in cNF Tumor Volume (Cubic Millimeters)-16.7 percentage changeStandard Deviation 30.3
Secondary

Systemic Exposure of NFX-179 Gel Measured by Plasma Concentration

Systemic exposure of NFX-179 will be measured during the 28 days of QD applications at select investigative sites. Pharmacokinetic samples will be drawn at the baseline visit and week 4 visit. 5 time point samples will be collected at the week 4 visit.

Time frame: Baseline through Week 4

Population: Pharmacokinetic data from subjects treated with active NFX-179 gel was performed, which does not include samples from subjects treated with Vehicle gel (placebo). As such, no analysis pharmacokinetic analysis was performed in the Vehicle Arm.

ArmMeasureGroupValue (NUMBER)
NFX-179 Gel Low (0.05%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 30 minNA ng/mL
NFX-179 Gel Low (0.05%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationBaseline, pre dose (0 hour)NA ng/mL
NFX-179 Gel Low (0.05%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 1 hourNA ng/mL
NFX-179 Gel Low (0.05%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 4 hoursNA ng/mL
NFX-179 Gel Low (0.05%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, pre dose (0 hour)NA ng/mL
NFX-179 Gel Low (0.05%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 2 hoursNA ng/mL
NFX-179 Gel Mid (0.15%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, pre dose (0 hour)NA ng/mL
NFX-179 Gel Mid (0.15%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationBaseline, pre dose (0 hour)NA ng/mL
NFX-179 Gel Mid (0.15%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 30 minNA ng/mL
NFX-179 Gel Mid (0.15%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 1 hourNA ng/mL
NFX-179 Gel Mid (0.15%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 2 hoursNA ng/mL
NFX-179 Gel Mid (0.15%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 4 hoursNA ng/mL
NFX-179 Gel High (0.50%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, pre dose (0 hour)0.439 ng/mL
NFX-179 Gel High (0.50%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 4 hours0.528 ng/mL
NFX-179 Gel High (0.50%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 2 hours0.718 ng/mL
NFX-179 Gel High (0.50%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 30 min0.887 ng/mL
NFX-179 Gel High (0.50%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationBaseline, pre dose (0 hour)NA ng/mL
NFX-179 Gel High (0.50%)Systemic Exposure of NFX-179 Gel Measured by Plasma ConcentrationWeek 4, post dose 1 hour0.573 ng/mL

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