Study Designed to Evaluate Safety and Efficacy of 1% Topical Formulation of KM-001 on Type 1 Punctate Palmoplantar Keratoderma or Pachyonychia Congenita Diseases

Summary

In this phase 1 open label study for patients with type I punctate palmoplantar keratoderma or pachyonychia congenital, 2 arms will be recruited to be treated twice daily, with 1% topical KM-001.

Arm 1: up to 10 eligible patients will be treated for 12 weeks. Arm 2: up to 8 eligible patients will be treated for 16 weeks.

Treatment safety and efficacy will be assessed in the clinic visits (for arm 1 up to day 91, for arm 2 up to day 126). In between safety will also be assessed by phone visits.

At the in-clinic visits, treatment efficacy (lesion clearance - IGA, CGI-S, PGI-C, PGI-S and VAS pain) will also be assessed.

PK blood samples will be collected for arm 1: on Days 0, 7, 84 (EoT visit). One week after the end of treatment (EoT) visit, patients will return to the clinic for final safety, efficacy and PK evaluations. For arm 2, PK blood samples will be collected on days 0, 7, 84, 112 (EoT visit). Two weeks after the end of treatment (EoT) visit, patients will return to the clinic for final safety, efficacy and PK evaluations.

Conditions

• Punctate Palmoplantar Keratoderma Type 1
• Pachyonychia Congenita

Interventions

DIAGNOSTIC_TEST

Serum chemistry

Approximately 5 mL whole blood will be collected after an ≥8 h fast for complete blood count (CBC) during Screening, and on Days 7 and 84 of treatment, at early termination (ET), if required, and at the EoT (Arm 2: Day 112) and follow-up EoS visits (Cohort 1: Day 91; Cohort 2: Day 126). Serum chemistries will include assessment of total bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), lactate dehydrogenase (LDH), alkaline phosphatase, glucose, sodium, potassium, blood urea nitrogen (BUN), and creatinine.

DIAGNOSTIC_TEST

Hematology

Approximately 5 mL whole blood will be collected after an ≥8 h fast for complete blood count (CBC) during Screening, and on Days 7 and 84 of treatment, at early termination (ET), if required, and at the EoT (Arm 2: Day 112) and follow-up EoS visits (Cohort 1: Day 91; Cohort 2: Day 126). The CBC assessment will include a red blood cells (RBC), hemoglobin, hematocrit, platelet count, mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), mean platelet volume (MCV), white blood cells (WBC), neutrophils (% and abs.), lymphocytes (% and abs.), monocytes (% and abs.), eosinophils (% and abs.), basophils (% and abs.), large unstained cells (% and abs.).

DIAGNOSTIC_TEST

Urinalysis

General urinalysis will be performed, by dipstick, during Screening, on Days 7 and 84 of treatment, at early termination (ET), if required, and at the EoT (Cohort 2: Day 112) and follow-up EoS visits (arm 1: Day 91; Arm 2: Day 126). Approximately 7-10 mL urine will be collected. Urinalysis will include pH, specific gravity, blood, nitrites, glucose, ketones, protein, bilirubin urobilinogen and leukocytes. A microscopic examination of the urine will be performed only if clinically indicated.

DIAGNOSTIC_TEST

Physical Examination

A complete physical examination will be performed at Screening, at all in-clinic study visits, and at the End of Study visit. The physical examination will cover a careful assessment of all body systems, including the head, eyes, ears, nose, and throat and the respiratory, cardiovascular, GI, urogenital, musculoskeletal, neurological, dermatological, hematologic/lymphatic, and endocrine systems. Particular attention will be placed on the areas affected by the disease. • Symptom-directed physical examinations will be performed at all other study visits.

DIAGNOSTIC_TEST

Vital Signs

Vital sign measurements (body temperature, pulse and resting systolic and diastolic blood pressure) will be measured at Screening, at all in-clinic study visits, and at the End of Study visit. Vital signs will be measured in supine position after at least five minutes of rest.

DIAGNOSTIC_TEST

ECG Test

A 12-lead, resting, digital ECG will be taken for each participant during Screening, on Days 42 and 84 (for both arms), and on day 112 (Arm 2 only), after the patient has been supine for at least 5 min. At minimum, the following ECG parameters will be recorded: heart rate (HR), PR, QT and QRS intervals and QTC. The report will be signed by the Investigator, who will record in the CRF whether it is normal, abnormal but not clinically significant, or abnormal AND clinically significant. In the latter case the eligibility of the participants will be reviewed.

DIAGNOSTIC_TEST

PK

Blood PK analyses will be performed on ≥5ml blood collected in 5-mL K-EDTA CRO coded pre-labeled tubes, refrigerated immediately after collection. Plasma will be separated by centrifugation within 2h, and then frozen at -20C. Blood samples will be collected pre-dose on Days 0, 7, and 84, as well as pre-dose at EoT (Arm 2: Day 112), and at any point during the in-clinic visit at EoS (Arm 1: Day 91; Arm 2: Day 126).

DIAGNOSTIC_TEST

IGA scoring

Lesions severity will be assessed using the Investigator's Global Assessment (IGA) scale,which is a 5-point scale (from 0 ="no disease" to 4="severe disease") based on Simpson et al. 2020, IGA for atopic dermatitis (see Table 4; Simpson et al. 2020). The IGA score is selected using the descriptors below that best describe the overall appearance of the lesions at a given timepoint. It is not necessary that all characteristics under morphological description are present. Excoriations should not be considered when assessing disease severity.

DRUG

KM-001 1% cream 12 weeks treatment

KM-001 1% cream will be applied to the treated area twice daily for 12 consecutive weeks, 2 gr per treatment, and overall, 4 gr of daily dose. KM-001 will be supplied in glass jars (30 g) and will be provided to patients with spatulas and polyethylene gloves.

DIAGNOSTIC_TEST

Clinician global impression of severity (CGI-S)

Lesions severity will be assessed using the CGI-S scale, which is a 5-point scale (from 0= "none" to 4= "very severe") modified from Busner et al. 2007 (30) by the investigator at screening and on Days 0, 7, 28, 42, 63, 84, 91, 112, and 126 (as applicable, per arm), and at ET visit, if applicable. The clinician scoring takes into account all available information, including a knowledge of the patient's history, psychosocial circumstances, symptoms (pain), behaviour, and the impact of the symptoms on the patient's ability to function (ability to walk). investigators will complete the CGI-S at various timepoints based on the question. "Please choose the response that best describes your assessment of the disease severity, based upon the totality of information available to you"

DIAGNOSTIC_TEST

Visual Analogue Scale (VAS)

The VAS score will be collected on every in-clinic visit during the treatment period (Days 0, 7, 28, 42, 63, 84, 91, 112, and 126 (as applicable, per arm), and at ET visit, if applicable.). The PGIs will be evaluated on Days 0, 7, 28, 42, 63, 84, 91, 112, and 126 (as applicable, per arm), and The following parameter will be evaluated on a VAS from 0 (no pain) to 100 (severe intolerable pain) based on the question: "How was your worst pain intensity in the past 24 hours?"

DIAGNOSTIC_TEST

Patient global impression of change (PGI-C) scoring

The PGI-C scale was developed to provide a brief, stand-alone assessment of the patient's view of his/her global functioning prior to and after initiating a trial medication. The PGIs will be evaluated on Days 7, 28, 42, 63, 84, 91, 112, and 126 (as applicable, per arm), and at ET visit, if applicable. The PGI-C will be evaluated using a 7-point scale from 1 (very much improved) to 7 (very much worse) answering the question Since the start of the trial, my overall status has.

DIAGNOSTIC_TEST

Patient global impression of severity (PGI-S) scoring

The PGI-S scale was developed to provide a brief, stand-alone assessment of the patient's view of his/her global functioning prior to and after initiating a trial medication. The PGIs will be evaluated on Days 0, 7, 28, 42, 63, 84, 91, 112, and 126 (as applicable, per arm), and at ET visit, if applicable. The PGI-S will be evaluated using a 5-point scale from 1 (none) to 5 (very severe) answering the question Please rate the severity of your disease right now.

DIAGNOSTIC_TEST

Lesion photography

High-quality photographic documentation of the treated lesions will be performed on screening, and on Days 0, 7, 28, 42, 63, 84, 91, 112, and 126 (as applicable, per arm), and at ET visit, pre-dose, if applicable.

DRUG

KM-001 1% cream 16 weeks treatment

KM-001 1% cream will be applied to the treated area twice daily for 12 consecutive weeks, 2 gr per treatment, and overall, 4 gr of daily dose. KM-001 will be supplied in glass jars (30 g) and will be provided to patients with spatulas and polyethylene gloves.

Sponsors & Collaborators

• Kamari Pharma Ltd

  lead NETWORK

Study Design

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

SEQUENTIAL

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2022-07-17

Primary Completion

2024-09-05

Completion

2024-09-05

Countries

• Israel

Study Locations