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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT05334368




Registration number
NCT05334368
Ethics application status
Date submitted
12/04/2022
Date registered
19/04/2022
Date last updated
7/09/2023

Titles & IDs
Public title
Depemokimab in Participants With Hypereosinophilic Syndrome, Efficacy, and Safety Trial
Scientific title
A Randomized, Double-blind, Placebo-controlled Study to Investigate the Efficacy and Safety of Depemokimab in Adults With Hypereosinophilic Syndrome (HES)
Secondary ID [1] 0 0
217013
Universal Trial Number (UTN)
Trial acronym
DESTINY
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Hypereosinophilic Syndrome 0 0
Condition category
Condition code
Blood 0 0 0 0
Haematological diseases
Other 0 0 0 0
Research that is not of generic health relevance and not applicable to specific health categories listed above

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Depemokimab
Other interventions - Placebo

Experimental: Depemokimab - All participants in this arm will receive depemokimab.

Placebo Comparator: Placebo - All participants in this arm will receive placebo.


Treatment: Drugs: Depemokimab
Depemokimab will be administered.

Other interventions: Placebo
Matching placebo will be administered.
Intervention code [1] 0 0
Treatment: Drugs
Intervention code [2] 0 0
Other interventions
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Frequency of HES flares
Timepoint [1] 0 0
Up to 52 weeks
Secondary outcome [1] 0 0
Time to first HES flare
Timepoint [1] 0 0
Up to 52 weeks
Secondary outcome [2] 0 0
Number of participants with at least one HES flare during the 52-week study intervention period
Timepoint [2] 0 0
Up to 52 weeks
Secondary outcome [3] 0 0
Change from Baseline to Week 52 in weekly average score of Brief Fatigue Inventory (BFI) item 3 (worst fatigue in last 24 hours)
Timepoint [3] 0 0
Baseline and up to Week 52

Eligibility
Key inclusion criteria
- Participants who are greater than or equal (>=) 40 kilogram (kg) at Screening Visit 1.

- Participants who have a documented diagnosis of HES prior to Visit 2.

- A history of 2 or more HES flares within the past 12 months prior to Visit 1.

- A female participant is eligible to participate if she is not pregnant or
breastfeeding, and one of the following conditions applies: a) woman of
non-childbearing potential (WONCBP) Or b) woman of childbearing potential (WOCBP) and
using a contraceptive method that is highly effective, with a failure rate of less
than (<) 1 percentage (%).

- Capable of giving signed informed consent.
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- Participants with HES disease manifestations which in the opinion of the investigator
may put the participant at unacceptable risk from study participation or confound
interpretation of efficacy or safety data.

- Participants with chronic or ongoing active infections requiring systemic treatment or
a pre-existing parasitic infestation within 6 months prior to Visit 1.

- Participants with a known immunodeficiency (e.g., Human Immunodeficiency Virus [HIV]),
other than that explained by the use of OCS or other therapy taken for HES.

- Participants with a history of or current lymphoma.

- Participants with current malignancy or previous history of cancer in remission for
less than 5 years prior to Visit 1. Participants that had localized carcinoma (i.e.,
basal or squamous cell) of the skin which was resected for cure will not be excluded.

- Participants with a haematologic malignancy with hypereosinophilia in which HES is not
the primary diagnosis, e.g., chronic myeloid leukaemia, myelodysplastic syndrome,
chronic eosinophilic leukaemia-not otherwise specified.

- Cirrhosis or current unstable liver or biliary disease per investigator assessment.

- Participants who have severe or clinically significant cardiovascular disease
uncontrolled with standard treatment.

- Participants with current diagnosis of vasculitis.

- Hypereosinophila with no clinical symptoms and/or proof of organ dysfunction.

- Clinical diagnosis of Eosinophilic granulomatosis with polyangiitis (EGPA).

- Participants with an allergy/ intolerance to a monoclonal antibody or biologic, or any
of the excipients of the investigational product.

- Participants who have a previous documented failure with anti-interleukin (IL)-5/5R
therapy.

- Participants who have received monoclonal antibodies (mAb) within 30 days or 5
half-lives, whichever is longer, prior to Visit 1.

- Participants who test positive for the FIP1L1-PDGFRa fusion gene.

- QT interval corrected for heart rate according to Fridericia's formula (QTcF) =450
milliseconds (msec) or QTcF =480 msec for participants with Bundle Branch Block at
Screening Visit 1.

- Participants who are not responsive to OCS based on clinical response or blood
eosinophil counts in the opinion of the Investigator.

- Participants who are pregnant or breastfeeding.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
6/09/2022
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
26/03/2026
Actual
Sample size
Target
120
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
ACT
Recruitment hospital [1] 0 0
GSK Investigational Site - Canberra
Recruitment postcode(s) [1] 0 0
2606 - Canberra
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
California
Country [2] 0 0
United States of America
State/province [2] 0 0
Georgia
Country [3] 0 0
United States of America
State/province [3] 0 0
Massachusetts
Country [4] 0 0
United States of America
State/province [4] 0 0
Michigan
Country [5] 0 0
United States of America
State/province [5] 0 0
Minnesota
Country [6] 0 0
United States of America
State/province [6] 0 0
Ohio
Country [7] 0 0
United States of America
State/province [7] 0 0
South Carolina
Country [8] 0 0
United States of America
State/province [8] 0 0
Tennessee
Country [9] 0 0
Argentina
State/province [9] 0 0
Buenos Aires
Country [10] 0 0
Belgium
State/province [10] 0 0
Bruxelles
Country [11] 0 0
Belgium
State/province [11] 0 0
Leuven
Country [12] 0 0
Brazil
State/province [12] 0 0
Rio Grande Do Sul
Country [13] 0 0
Brazil
State/province [13] 0 0
Santa Catarina
Country [14] 0 0
Brazil
State/province [14] 0 0
São Paulo
Country [15] 0 0
Brazil
State/province [15] 0 0
Rio de Janeiro
Country [16] 0 0
China
State/province [16] 0 0
Guangdong
Country [17] 0 0
China
State/province [17] 0 0
Heilongjiang
Country [18] 0 0
China
State/province [18] 0 0
Hubei
Country [19] 0 0
China
State/province [19] 0 0
Hunan
Country [20] 0 0
China
State/province [20] 0 0
Jiangsu
Country [21] 0 0
China
State/province [21] 0 0
Jiangxi
Country [22] 0 0
China
State/province [22] 0 0
Beijing
Country [23] 0 0
China
State/province [23] 0 0
Shanghai
Country [24] 0 0
Czechia
State/province [24] 0 0
Brno
Country [25] 0 0
Czechia
State/province [25] 0 0
Hradec Kralove
Country [26] 0 0
Czechia
State/province [26] 0 0
Praha
Country [27] 0 0
Czechia
State/province [27] 0 0
Usti nad Labem
Country [28] 0 0
Denmark
State/province [28] 0 0
Odense
Country [29] 0 0
Germany
State/province [29] 0 0
Baden-Wuerttemberg
Country [30] 0 0
Germany
State/province [30] 0 0
Schleswig-Holstein
Country [31] 0 0
Greece
State/province [31] 0 0
Athens
Country [32] 0 0
Greece
State/province [32] 0 0
Patras,Achaia
Country [33] 0 0
Greece
State/province [33] 0 0
Patras
Country [34] 0 0
Hong Kong
State/province [34] 0 0
Hong Kong
Country [35] 0 0
Hong Kong
State/province [35] 0 0
Shatin
Country [36] 0 0
Israel
State/province [36] 0 0
Ramat-Gan
Country [37] 0 0
Israel
State/province [37] 0 0
Tel Aviv
Country [38] 0 0
Italy
State/province [38] 0 0
Campania
Country [39] 0 0
Italy
State/province [39] 0 0
Emilia-Romagna
Country [40] 0 0
Italy
State/province [40] 0 0
Lazio
Country [41] 0 0
Italy
State/province [41] 0 0
Lombardia
Country [42] 0 0
Italy
State/province [42] 0 0
Piemonte
Country [43] 0 0
Italy
State/province [43] 0 0
Sicilia
Country [44] 0 0
Italy
State/province [44] 0 0
Veneto
Country [45] 0 0
Italy
State/province [45] 0 0
Torino
Country [46] 0 0
Japan
State/province [46] 0 0
Aomori
Country [47] 0 0
Japan
State/province [47] 0 0
Chiba
Country [48] 0 0
Japan
State/province [48] 0 0
Gifu
Country [49] 0 0
Japan
State/province [49] 0 0
Hyogo
Country [50] 0 0
Japan
State/province [50] 0 0
Kanagawa
Country [51] 0 0
Japan
State/province [51] 0 0
Miyagi
Country [52] 0 0
Japan
State/province [52] 0 0
Tokyo
Country [53] 0 0
Japan
State/province [53] 0 0
Yamanashi
Country [54] 0 0
Korea, Republic of
State/province [54] 0 0
Chonju
Country [55] 0 0
Korea, Republic of
State/province [55] 0 0
Gangwon-do
Country [56] 0 0
Korea, Republic of
State/province [56] 0 0
Gwangju
Country [57] 0 0
Korea, Republic of
State/province [57] 0 0
Seoul
Country [58] 0 0
Korea, Republic of
State/province [58] 0 0
Suwon-si, Gyeonggi-do
Country [59] 0 0
Mexico
State/province [59] 0 0
Jalisco
Country [60] 0 0
Mexico
State/province [60] 0 0
Nuevo León
Country [61] 0 0
Mexico
State/province [61] 0 0
Veracruz
Country [62] 0 0
Poland
State/province [62] 0 0
Lodz
Country [63] 0 0
Romania
State/province [63] 0 0
Bucharest
Country [64] 0 0
Romania
State/province [64] 0 0
Cluj-Napoca
Country [65] 0 0
Spain
State/province [65] 0 0
Barcelona
Country [66] 0 0
Spain
State/province [66] 0 0
Granada
Country [67] 0 0
Spain
State/province [67] 0 0
Madrid
Country [68] 0 0
Spain
State/province [68] 0 0
Pozuelo (Madrid)
Country [69] 0 0
Spain
State/province [69] 0 0
Salamanca
Country [70] 0 0
Spain
State/province [70] 0 0
Valencia
Country [71] 0 0
Spain
State/province [71] 0 0
Zaragoza
Country [72] 0 0
Turkey
State/province [72] 0 0
Ankara
Country [73] 0 0
Turkey
State/province [73] 0 0
Izmir
Country [74] 0 0
United Kingdom
State/province [74] 0 0
Leicester

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
GlaxoSmithKline
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
This is a 52-week, randomized, placebo-controlled, double-blind, parallel group, multicenter
study of depemokimab in adults with uncontrolled HES receiving standard of care (SoC)
therapy.

The study will recruit patients with a confirmed diagnosis of HES and who are on stable HES
therapy for at least 4 weeks prior to randomization (Visit 2). Eligible participants must
have uncontrolled HES with a history of repeated flare (=2 flares in the previous 12 months)
and blood eosinophil count of =1,000 cells/ microliter (µL) during Screening. Historical HES
flares are defined as documented HES-related worsening of clinical symptoms or blood
eosinophil counts requiring an escalation in therapy.

Participants who meet the inclusion and exclusion criteria will be randomized in a 2:1 ratio
to receive either depemokimab or placebo while continuing their SoC HES therapy.
Trial website
https://clinicaltrials.gov/ct2/show/NCT05334368
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
GSK Clinical Trials
Address 0 0
GlaxoSmithKline
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
US GSK Clinical Trials Call Center
Address 0 0
Country 0 0
Phone 0 0
877-379-3718
Fax 0 0
Email 0 0
GSKClinicalSupportHD@gsk.com
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT05334368