Study in Beta-thalassaemia or Myelodysplastic Syndrome Patients to Investigate the Safety and Tolerability of SLN124

NCT ID: NCT04176653

Last Updated: 2020-04-27

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

WITHDRAWN

Clinical Phase

PHASE1

Study Classification

INTERVENTIONAL

Study Start Date

2019-08-20

Study Completion Date

2021-10-14

Brief Summary

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The primary purpose of this study is to determine the safety and tolerability of SLN124 for the treatment of non-transfusion-dependent (NTD) β-thalassaemia and low risk myelodysplastic syndrome.

Detailed Description

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Conditions

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Non-transfusion-dependent Thalassemia Low Risk Myelodysplastic Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Multiple Group Assignment
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Placebo

Group Type PLACEBO_COMPARATOR

SLN124 is a GalNAc conjugated double stranded fully modified siRNA. Sodium chloride 0.9% w/v is used as Placebo

Intervention Type DRUG

IMP will be provided as a solution to be injected by qualified clinical staff in patient's abdomen, upper arms or front of the thighs.

0.3 mg/kg

Group Type EXPERIMENTAL

SLN124 is a GalNAc conjugated double stranded fully modified siRNA. Sodium chloride 0.9% w/v is used as Placebo

Intervention Type DRUG

IMP will be provided as a solution to be injected by qualified clinical staff in patient's abdomen, upper arms or front of the thighs.

1.0 mg/kg

Group Type EXPERIMENTAL

SLN124 is a GalNAc conjugated double stranded fully modified siRNA. Sodium chloride 0.9% w/v is used as Placebo

Intervention Type DRUG

IMP will be provided as a solution to be injected by qualified clinical staff in patient's abdomen, upper arms or front of the thighs.

3.0 mg/kg

Group Type EXPERIMENTAL

SLN124 is a GalNAc conjugated double stranded fully modified siRNA. Sodium chloride 0.9% w/v is used as Placebo

Intervention Type DRUG

IMP will be provided as a solution to be injected by qualified clinical staff in patient's abdomen, upper arms or front of the thighs.

10.0 mg/kg

Group Type EXPERIMENTAL

SLN124 is a GalNAc conjugated double stranded fully modified siRNA. Sodium chloride 0.9% w/v is used as Placebo

Intervention Type DRUG

IMP will be provided as a solution to be injected by qualified clinical staff in patient's abdomen, upper arms or front of the thighs.

Interventions

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SLN124 is a GalNAc conjugated double stranded fully modified siRNA. Sodium chloride 0.9% w/v is used as Placebo

IMP will be provided as a solution to be injected by qualified clinical staff in patient's abdomen, upper arms or front of the thighs.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18yrs; BMI 18-35 kg/m2
* β-thalassaemia intermedia or compound heterozygous HbE/β-thalassaemia
* Non-transfusion dependent: ≤ 5 units red cells in last 6 months and transfusion-free for ≥8 weeks
* Hb between 5 \& 11 g/dL
* Ferritin \> 250 µg/L and /or liver iron ≥ 3mg Fe/g dry weight and TSAT \>40%

Exclusion Criteria

* Haemoglobin S/β-thalassaemia, homozygous β-0 thalassaemia or α thalassaemia
* ALT/AST \> 1.5 x upper limit normal or cirrhosis
* eGFR \< 60 mL/min/1.73m2
* Platelets \<100 or \> 1000 x 109/L
* Untreated B12/folate deficiency
* Iron chelation therapy unless stable for ≥8 weeks
* Daily NSAID, therapeutic dose anticoagulant, ESA ≤12 weeks or stable dosing of hydroxyurea ≤ 6 months
* Significant cardiac disease (MI in 6 months, NYHA class III-IV heart failure, long QT)
* HIV or active hepatitis B/C or malignancy within 5 year
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Silence Therapeutics plc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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MHAT Dr. Nikola Vasiliev AD

Kyustendil, , Bulgaria

Site Status

UMHAT Dr. Georgi Stranski AD

Pleven, , Bulgaria

Site Status

Medical Center COMAC MEDICAL

Sofia, , Bulgaria

Site Status

UMHAT Sv. Ivan Rilski

Sofia, , Bulgaria

Site Status

Hammersmith Hospital

London, , United Kingdom

Site Status

Countries

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Bulgaria United Kingdom

Other Identifiers

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SLN124-001

Identifier Type: -

Identifier Source: org_study_id

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