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RecruitingNCT05331105Updated May 31, 2023

HL-085 in Adults With Neurofibromatosis Type 1 (NF1) and Inoperable Plexiform Neurofibromas

A Phase 2 interventional study of HL-085 in Neurofibromatosis 1 and Plexiform Neurofibromas, sponsored by Shanghai Kechow Pharma, Inc.. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2023-05-31.

Sponsored by Shanghai Kechow Pharma, Inc. · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Oct 2025, 1 year ago, but the record still lists the study as recruiting.
  • Registered 4 months after the study started (first participant enrolled Oct 2021, registered Mar 2022).
  • Started Oct 2021; still recruiting 5 years later.
Phase
Phase 2
Study type
Interventional
Enrollment
70
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This is a Multi-center, Open-label, Single-arm Phase II Study to Evaluate the Efficacy and Safety of HL-085 in the treatment of Adult Participants with Neurofibromatosis Type 1 (NF1) and Inoperable Plexiform Neurofibromas(PN)

Read the detailed description

The study includes 2 parts, phase IIa and IIb. Phase IIa is to evaluate the preliminary safety, pharmacokinetic characteristics and efficacy of HL-085, and to determine the recommended dose. To observe the 9mg dose level, approximately 15 patients will receive HL-085 at a dose of 9mg BID on a continuous dosing schedule(1 cycle=21 days). The investigator and sponsor will evaluate the safety and efficacy data to determine whether HL-085 9mg BID is appropriate. HL-085 12mg BID, 6mg BID, or other HL-085 dosing regimen will be observed as needed. A total of 15-35 patients will be enrolled in phase IIa. Phase IIb is to further evaluate the safety and efficacy of HL-085 in patients with NF1 and inoperable PN and is expected to enroll 35 patients.

02

Conditions studied

  • Neurofibromatosis 1
  • Plexiform Neurofibromas
03

In context

Neurofibromatosis 1

176 studies on the registry are indexed under Neurofibromatosis 1; 43 are open to participants now.

This study's planned enrollment of 70 is above the median of 35 across 114 interventional studies indexed under Neurofibromatosis 1.

Browse Neurofibromatosis 1 studies →

Lead sponsor

Shanghai Kechow Pharma, Inc. is the lead sponsor of 12 studies on the registry; 8 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Age: patients must be ≥18 years of age at the time of study entry.
  • Diagnosis: Patients must have inoperable and symptomatic plexiform neurofibromas(PN), and patients must have NF1 mutation or meet at least 1 of the following NF1 diagnostic criteria:

    ① ≥6 cafe-au-lait macules ;

    ② Axillary freckling or freckling in inguinal regions;

    ③ ≥2 Lisch nodules (iris hamartomas);

    ④ A distinctive bony lesion such as dysplasia of the sphenoid bone or dysplasia or thinning of long bone cortex);

    ⑤ An optic pathway glioma;

    ⑥ First-degree relative with NF1.

  • Patients must have a , defined as at least 3 cm in length, amenable to MRI for efficacy assessment.
  • (ECOG) performance status of 0-2.
  • Patients are able to understand and voluntarily sign a written form.
  • Patients must be willing and able to complete study procedures and follow-up examinations.

Exclusion criteria

Exclusion Criteria:

  • Patients who are unable to undergo MRI scans (prosthesis, prosthesis, braces, etc.) or patients with lesions that cannot be evaluated by MRI.
  • Patients do not have adequate organ function.
  • Patients who are unable to take drugs orally, have difficulty swallowing or anything that may lead to inadequate drug absorption.
  • Prior treatment with MEK 1/2 inhibitors.
  • Patients known to be allergic to the ingredients or analogues of the study drug.
  • Patients with previous or current retinal diseases such as retinal vein occlusion (RVO), retinal pigment epithelium detachment (RPED), central serous retinopathy (CSR), etc. (except retinopathy caused by research diseases).
  • With infections or other uncontrolled disease.
  • Strong CYP2C9 inhibitors or inducers within 7 days before treatment of the study drug.
  • Patients who received surgery within 4 weeks or radiotherapy within 6 weeks before enrollment.
  • Patients who participated in any other clinical study treatment within 4 weeks before enrollment.
  • Patients treated with anti-NF1 treatment with unresolved chronic toxicity.
  • Clinical judgment by the investigator that the patient should not participate in the study.
Terms in these criteria, in plain language(3)

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.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

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.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
70 participants (estimated)

Study arms

  • Experimental
    HL-085

    HL-085 9mg BID

    Drug: HL-085

Interventions

  • DrugHL-085

    IIa: HL-085 capsule 9mg administered orally twice daily in a continuous 21-day treatment cycle. If required, dosing schedule can be adjusted to 12mg BID, 6mg BID, or other dosage regimens. IIb: HL-085 at the recommended dose or dosage regimen.

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR)

    To assess the efficacy of HL-085 on the tumor volume (plexiform neurofibromas) using volumetric MRI per REiNS criteria. ORR is defined as the percentage of patients who have achieved a confirmed Partial Responses (PR) or Complete Responses (CR).

    Time frame: At the end of cycle 4,8,12,16,20,24,28,32.Then after every 8 cycles(each cycle is 21 days)

Secondary outcomes

  1. Disease Control Rate(DCR)

    Defined as the percentage of patients who have achieved a confirmed response of CR or PR or SD

    Time frame: At the end of cycle 4,8,12,16,20,24,28,32.Then after every 8 cycles(each cycle is 21 days)

  2. Duration of Overall Response(DOR)

    Defined as the time from first achieved CR or PR to disease progression

    Time frame: At the end of cycle 4,8,12,16,20,24,28,32.Then after every 8 cycles(each cycle is 21 days)

  3. Progression Free survival (PFS)

    Defined as the time from first dosing (C1D1) to date of first observed progression or death from any cause (whichever comes first)

    Time frame: From date of dosing until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 3 years

  4. Pharmacokinetic characteristics

    AUC

    Time frame: During the intervention

07

Study locations

1 of 1 sites recruiting
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 reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2021 (actual). Primary completion is estimated for Oct 2025, 48 months after the start.

Of 24 phase 2 interventional studies under Neurofibromatosis 1, half reached primary completion within 62 months of starting (the median), counting those still running; a quarter within 40 and three quarters within 95. This study's planned 48 months is below that.

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

Registered
Mar 15, 2022
First posted
Apr 15, 2022
StartActual
Oct 18, 2021
Primary completionEst.
Oct 30, 2025
CompletionEst.
Oct 31, 2028
Last update
May 31, 2023
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 May 31, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05331105
Lead sponsor
Shanghai Kechow Pharma, Inc.
Responsible party
Sponsor
First posted
Apr 15, 2022
Start date
Oct 18, 2021
Primary completion
Oct 30, 2025 (estimated)
Completion
Oct 31, 2028 (estimated)
Last update
May 31, 2023

Study contacts

Zhimei Zhu, Master
Contact
zhuzm@kechowpharma.com
86 215201345822
Hongqi Tian, Ph.D
Contact
tianhq@kechowpharma.com
Hongqi Tian, Ph.D
study chair · Shanghai Kechow Pharma, Inc.

Oversight

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

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