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Study to compare doxycycline versus antibiotic standard therapy, to be added to bortezomib, in newly-diagnosed cardiac AL amyloidosis

A randomized phase II/III trial of doxycycline vs. standard supportive therapy in newly-diagnosed cardiac AL amyloidosis patients undergoing bortezomib-based therapy - Redox

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2017-002210-31-IT
Enrollment
120
Registered
2020-12-15
Start date
2018-01-24
Completion date
Unknown
Last updated
2025-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiac AL amyloidosis MedDRA version: 20.0 Level: PT Classification code 10007509 Term: Cardiac amyloidosis System Organ Class: 10007541 - Cardiac disorders

Interventions

Trade Name: BASSADO - 100 MG COMPRESSE 10 COMPRESSE Product Name: Doxiciclina Product Code: NA Pharmaceutical Form: Tablet INN or Proposed INN: DOXICICLINA CAS Number: 564-25-0 Current Sponsor code: N

Sponsors

FONDAZIONE I.R.C.C.S. POLICLINICO SAN MATTEO
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age = 18. 2. newly-diagnosed AL amyloidosis. 3. Confirmed diagnoses of AL amyloidosis by the following: a) histochemical diagnoses of AL amyloidosis determined by polarizing light microscopy of green birefringent material in Congo red stained issue specimens OR characteristic electron microscopy appearance AND b) Confirmatory electron microscopy immunohistochemistry OR mass spectroscopy of AL amyloidosis. Confirmation of amyloid type can be omitted in patients with a clear-cut clinical evidence of AL amyloidosis (e.g. cardiac and renal involvement, soft tissue involvement) in the presence of a monoclonal component. 4. Cardiac involvement grade II/IIIa 5. Planned bortezomib-based therapy. 6. Total bilirubin 1.5 × url without any other liver function test abnormalities are still eligible. 7. Alkaline phosphatase =65 years) yes F.1.3.1 Number of subjects for this age range 54

Exclusion criteria

Exclusion criteria: 1. Non-AL amyloidosis. 2. Stage IIIb cardiac involvement 3. Previous treatment for AL amyloidosis. 4. Clinically overt multiple myeloma with lytic bone lesions. 5. Symptomatic orthostatic hypotension that in the medical judgment of the Investigator would interfere with subject’s ability to safely receive treatment or complete study assessments. 6. Patients with uncontrolled infection or active malignancy with the exception of adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, adequately treated Stage I cancer from which the patient is currently in complete remission, or any other cancer from which the patient has been disease-free for 5 years. 7. Known HIV positive. 8. Pregnant or nursing women. 9. Known hypersensitivity to doxycycline, bortezomib, boron, or mannitol. 10. Treatment with drugs potentially affecting doxycycline absorption. 11. Significant acute gastrointestinal symptoms. 12. Active peptic ulceration and/or esophageal reflux disease. 13. Patients with serious medical or psychiatric illness likely to interfere with participation in this clinical study. 14. Contraindication to bortezomib based therapy

Design outcomes

Primary

MeasureTime frame
Main Objective: Evaluation of survival after 12 months;Secondary Objective: - safety, i.e. rate of severe (CTCAE v5.0) grade 3 or greater adverse events) - rate of infective adverse events of any grade - cardiac response at 2, 4, 6 and 12 months - hematologic response at 2, 4, 6 and 12 months - renal response at 2, 4, 6 and 12 months;Primary end point(s): Survival;Timepoint(s) of evaluation of this end point: 12 months

Secondary

MeasureTime frame
Secondary end point(s): - safety, i.e. rate of severe (CTCAE v5.0) grade 3 or greater adverse events) - rate of infective adverse events of any grade - cardiac response at 2, 4, 6 and 12 months - hematologic response at 2, 4, 6 and 12 months - renal response at 2, 4, 6 and 12 months;Timepoint(s) of evaluation of this end point: 2, 4, 6 and 12 months

Countries

Germany, Italy

Contacts

Public ContactCentro per lo studio e la cura dell

Fondazione IRCCS Policlinico San Matteo di Pavia

segreteria.amiloidosi@smatteo.pv.it0382502990

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026