Clinical trial • Phase II • Musculoskeletal

RESOMELAGON for Polymyalgia rheumatica

Phase II trial of RESOMELAGON for Polymyalgia rheumatica.

Overview

Trial Therapeutic Area
Musculoskeletal
Trial Disease
Polymyalgia rheumatica
Trial Stage
Phase II
Drug Modality
Small molecule

Key dates

Initial CTIS Submission Date
02-02-2026
First CTIS Authorization Date
19-03-2026

Trial design

Randomised, placebo tablet described as: "apart from the ap1189 granulate, the placebo tablet and ap1189 tablet are identical." comparator is placebo tablet matching ap1189; ap1189 active dose 100 mg/day for 12 weeks; placebo administered matching schedule.-controlled Phase II trial across 5 sites in Denmark.

Randomised
Yes
Comparator
Placebo tablet described as: "Apart from the AP1189 granulate, the placebo tablet and AP1189 tablet are identical." Comparator is placebo tablet matching AP1189; AP1189 active dose 100 mg/day for 12 weeks; placebo administered matching schedule.
Target Sample Size
60
Trial Duration For Participant
84

Eligibility

Recruits 60 No vulnerable populations selected; trial enrols adults (≥50 years). Informed consent is required: "Signed and dated informed consent obtained before undergoing any trial-specific procedure." No paediatric assent or special consent procedures described. Subject information and informed consent form documents for adults are provided (documents include Danish versions)..

Pregnancy Exclusion
Females who are pregnant or lactating.
Vulnerable Population
No vulnerable populations selected; trial enrols adults (≥50 years). Informed consent is required: "Signed and dated informed consent obtained before undergoing any trial-specific procedure." No paediatric assent or special consent procedures described. Subject information and informed consent form documents for adults are provided (documents include Danish versions).

Inclusion criteria

  • {"criterion_text":"- 1.\tSigned and dated informed consent obtained before undergoing any trial-specific procedure."}
  • {"criterion_text":"- 2.\tMale or female aged ≥50 years."}
  • {"criterion_text":"- 3.\tPatients diagnosed with PMR fulfilling the 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria."}
  • {"criterion_text":"- 4.\tTreatment with glucocorticoid for PMR initiated at diagnosis 4 weeks beforefore baseline."}
  • {"criterion_text":"- 5.\tPatients in clinical remission at baseline, defined as absence of PMR activity evaluated by the investigator based on symptoms and clinical examination combined with a CRP level be-low 8.0 mg/l."}
  • {"criterion_text":"- 6.\tNo Giant cell arteritis (GCA) on vascular ultrasound at diagnosis or screening."}
  • {"criterion_text":"- 7.\tPatients with C-Reactive Protein (CRP) ≥8 mg/L at the time of diagnosis."}
  • {"criterion_text":"- 8.\tWilling and able to comply with the scheduled study visits, the treatment plan, and all study procedures."}
  • {"criterion_text":"- 9.\tFemales of childbearing potential must have a negative pregnancy test at screening and again at baseline."}
  • {"criterion_text":"- 10.\tSexually active female patients of childbearing potential and male patients must use a highly effective method of birth control (hormonal contraceptives, intrauterine device, vasectomy, bilateral tubal occlusion, sexual abstinence) with their partner during the study and for 90 days after the last dose of study drug or who will remain abstinent during the study and for 90 days after the last dose."}

Exclusion criteria

  • {"criterion_text":"- 1.\tPrevious treatment with glucocorticoids for GCA."}
  • {"criterion_text":"- 2.\tOngoing treatment with oral/intravenous/intramuscular glucocorticoids for other diseases than PMR."}
  • {"criterion_text":"- 3.\tOther inflammatory rheumatic diseases (e.g., rheumatoid arthritis, polymyositis, spondyloar-thritis, psoriatic arthritis, gout)."}
  • {"criterion_text":"- 4.\tSymptoms or findings of GCA (newly onset-headache, tenderness of the temporal artery, jaw claudication, vision disturbances, limb claudication)."}
  • {"criterion_text":"- 5.\tNon-inflammatory type of musculoskeletal condition (e.g., osteoarthritis or fibromyalgia) that in the Investigator's opinion is symptomatic and severe enough to interfere with the subject's primary diagnosis of PMR or the evaluation of the effect of the study drug."}
  • {"criterion_text":"- 6.\tGastrointestinal diseases that, in the opinion of the Investigator, may interfere with the absorption or excretion of medications."}
  • {"criterion_text":"- 7.\tSevere, progressive, or uncontrolled renal (including CKD stage 4 or higher), hepatic, hematologic, gastrointestinal, metabolic, endocrine, pulmonary, cardiac or neurologic disease."}
  • {"criterion_text":"- 8.\tMalignancy (with the exception of adequately treated or excised non-metastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ) active during the 5 years preceding the Screening Visit."}
  • {"criterion_text":"- 9.\tAny other clinically relevant disease and condition that, in the opinion of the Investigator, may jeopardize efficacy or safety assessments or may compromise the subject’s safety during trial participation."}
  • {"criterion_text":"- 10.\tFemales who are pregnant or lactating."}
  • {"criterion_text":"- 11.\tParticipation in any other study involving investigational drug(s) within 4 weeks prior to study entry."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Safety evaluations include adverse event monitoring, physical examinations, vital sign measurements, and clinical laboratory testing.","definition_or_measurement_approach":"Safety assessments comprised of adverse event monitoring, physical examinations, vital signs and clinical laboratory testing as listed in the endpoint text."}

Secondary endpoints

  • {"endpoint_text":"- To investigate the effect of 100 mg/day AP1189 tablets against placebo tablets by evaluating the proportion of patients in glucocorticoid free remission at week","definition_or_measurement_approach":"Proportion of patients in glucocorticoid-free remission at specified week (exact week number incomplete in text); comparison between 100 mg/day AP1189 and placebo."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: •\tAccumulated glucocorticoid dosage from baseline to week 12. •\tTime to first relapse from baseline to week 12. •\tGlucocorticoid free remission at week 12 (Remission defined as PMR-AS<10).","definition_or_measurement_approach":"Accumulated glucocorticoid dose measured from baseline to week 12; time-to-event analysis for time to first relapse up to week 12; glucocorticoid-free remission at week 12 defined as PMR-AS < 10."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: PMR activity score at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest.","definition_or_measurement_approach":"PMR activity score measured at weeks 4, 8, and 12; primary interest is change from baseline to week 12."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: Patient global VAS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"Patient global visual analogue scale measured at weeks 4, 8, 12; primary interest is change from baseline to week 12."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: SF-36 MCS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"SF-36 Mental Component Score measured at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: SF-36 PCS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"SF-36 Physical Component Score measured at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: HAQ-DI at week 4, 8, and 12 with the change from baseline to week 12 being of primary in-terest.","definition_or_measurement_approach":"Health Assessment Questionnaire Disability Index measured at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: Patient reported PMR VAS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"Patient-reported PMR visual analogue scale at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: Patient reported global VAS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest.","definition_or_measurement_approach":"Patient global VAS at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: Patient reported fatigue VAS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"Patient-reported fatigue VAS at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: Patient reported morning stiffness VAS at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"Patient-reported morning stiffness VAS at weeks 4, 8, 12; change from baseline to week 12 is primary."}
  • {"endpoint_text":"- To investigate the effects of 100 mg/day AP1189 tablets against placebo tablets by evaluating: Patient reported duration of morning stiffness at week 4, 8, and 12 with the change from baseline to week 12 being of primary interest","definition_or_measurement_approach":"Patient-reported duration of morning stiffness at weeks 4, 8, 12; change from baseline to week 12 is primary."}

Recruitment

Planned Sample Size
60
Recruitment Window Months
27
Consent Approach
Signed and dated informed consent must be obtained from each participant before any trial-specific procedure. Consent forms and subject information are available (documents include adult ICF and Danish language versions). Consent provided by the participant (adults ≥50 years). Females of childbearing potential require negative pregnancy tests at screening and baseline; contraception required during study and for 90 days after last dose.

Geography

Total Number Of Sites
5
Total Number Of Participants
60

Denmark

Earliest CTIS Part Ii Submission Date
04-02-2026
Latest Decision Or Authorization Date
19-03-2026
Processing Time Days
43
Number Of Sites
5
Number Of Participants
60

Sites

Site Name
Odense University Hospital
Department Name
Rheumatology
Principal Investigator Name
Søren Andreas Just
Principal Investigator Email
soeren.andreas.just@rsyd.dk
Contact Person Name
Søren Andreas Just
Contact Person Email
soeren.andreas.just@rsyd.dk
Site Name
Region Midtjylland (Silkeborg)
Department Name
Arthritis and Connective Tissue Diseases
Principal Investigator Name
Tue Kruse Rasmussen
Principal Investigator Email
tueras@rm.dk
Contact Person Name
Tue Kruse Rasmussen
Contact Person Email
tueras@rm.dk
Site Name
Region Midtjylland (Herning)
Department Name
Medicine, Rheumatology
Principal Investigator Name
René Drage Østgård
Principal Investigator Email
reneoest@rm.dk
Contact Person Name
René Drage Østgård
Contact Person Email
reneoest@rm.dk
Site Name
Region Midtjylland (Horsens)
Department Name
Medicine 2, rheumatology
Principal Investigator Name
Berit Dalsgaard Nielsen
Principal Investigator Email
bernil@rm.dk
Contact Person Name
Berit Dalsgaard Nielsen
Contact Person Email
bernil@rm.dk
Site Name
Region Midtjylland (Aarhus N)
Department Name
Rheumatology
Principal Investigator Name
Kresten Krarup Keller
Principal Investigator Email
kreskell@rm.dk
Contact Person Name
Kresten Krarup Keller
Contact Person Email
kreskell@rm.dk

Sponsor

Primary sponsor

Full Name
Synact Pharma ApS
Organisation Type
Pharmaceutical company
Country Of Registered Address
Denmark

Contract research organisations

Name
CroxxMed ApS
Responsibilities
sponsorDuties codes: 1,10,11,12,5,6; contact email bte@croxxmed.com

Third parties

  • {"country":"Denmark","full_name":"CroxxMed ApS","duties_or_roles":"sponsorDuties codes: 1,10,11,12,5,6","organisation_type":"Industry"}

Investigational products

Investigational Product Name
AP1189 Tablet
Active Substance
RESOMELAGON
Modality
Small molecule
Routes Of Administration
Oral
Route
Oral
Authorisation Status
prodAuthStatus: 1; euMpNumber: PRD11481319
Starting Dose
100 mg/day
Dose Levels
100 mg/day
Frequency
Daily
Maximum Dose
100 mg/day
Investigational Product Name
Placebo tablet (Apart from the AP1189 granulate, the placebo tablet and AP1189 tablet are identical.)
Modality
Other
Routes Of Administration
Oral (matching active)
Route
Oral (matching active)
Frequency
Matching active (daily)

Related trials

Other published trials that may interest you.