Double-blind, Randomized, Placebo-controlled, Prospective Phase III Study Evaluating Efficacy and Safety of Panzyga in Primary Infection Prophylaxis in Patients With Chronic Lymphocytic Leukemia ("PRO-SID" Study)

October 2, 2025 updated by: Octapharma
Study Evaluating Efficacy and Safety of Panzyga in Primary Infection Prophylaxis in Patients with Chronic Lymphocytic Leukemia

Study Overview

Study Type

Interventional

Enrollment (Actual)

247

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Brno, Czechia, 625 00
        • Octapharma Research Site
      • Hradec Králové, Czechia, 500 05
        • Octapharma Research Site
      • Ostrava, Czechia, 70852
        • Octapharma Research Site
      • Aalborg, Denmark, 9000
        • Octapharma Research Site
      • Herning, Denmark, 7400
        • Octapharma Research Site
      • Roskilde, Denmark, 4000
        • Octapharma Research Site
      • Dortmund, Germany, 44263
        • Octapharma Research Site
      • Frankfurt, Germany, 15236
        • Octapharma Research Site
      • Kiel, Germany, 24105
        • Octapharma Research Site
      • Marburg, Germany, 35037
        • Octapharma Research Site
      • Athens, Greece, 10676
        • Octapharma Research Site
      • Athens, Greece, 11526
        • Octapharma Research Site
      • Athens, Greece, 12462
        • Octapharma Research Site
      • Ioannina, Greece, 45500
        • Octapharma Research Site
      • Pátrai, Greece, 26500
        • Octapharma Research Site
      • Thessaloniki, Greece, 57010
        • Octapharma Research Site
      • Budapest, Hungary, 1088
        • Octapharma Research Site
      • Debrecen, Hungary, 4032
        • Octapharma Research Site
      • Győr, Hungary, 9023
        • Octapharma Research Site
      • Kaposvár, Hungary, 7400
        • Octapharma Research Site
      • Nyíregyháza, Hungary, 4400
        • Octapharma Research Site
      • Haifa, Israel, 3109601
        • Octapharma Research Site
      • Haifa, Israel, 34362
        • Octapharma Research Site
      • Petah Tikva, Israel, 49100
        • Octapharma Research Site
      • Castelfranco Veneto, Italy, 31033
        • Octapharma Research Site
      • Milan, Italy, 20132
        • Octapharma Research Site
      • Milan, Italy, 20162
        • Octapharma Research Site
      • Modena, Italy, 41124
        • Octapharma Research Site
      • Orbassano, Italy, 10043
        • Octapharma Research Site
      • Padua, Italy, 35129
        • Octapharma Research Site
      • Pescara, Italy, 65124
        • Octapharma Research Site
      • Reggio Calabria, Italy, 89133
        • Octapharma Research Site
      • Rome, Italy, 00161
        • Octapharma Research Site
      • Torino, Italy, 10126
        • Octapharma Research Site
      • Bialystok, Poland, 15-732
        • Octapharma Research Site
      • Bydgoszcz, Poland, 85-065
        • Octapharma Research Site
      • Gdansk, Poland, 80-214
        • Octapharma Research Site
      • Gdansk, Poland, 80-219
        • Octapharma Research Site
      • Gdynia, Poland, 81-519
        • Octapharma Research Site
      • Katowice, Poland, 40-519
        • Octapharma Research Site
      • Legnica, Poland, 59-220
        • Octapharma Research Site
      • Lodz, Poland, 93-513
        • Octapharma Research Site
      • Torun, Poland, 87-100
        • Octapharma Research Site
      • Warsaw, Poland, 02-776
        • Octapharma Research Site
      • Wroclaw, Poland, 50-367
        • Octapharma Research Site
      • Barnaul, Russia, 656024
        • Octapharma Research Site
      • Kemerovo, Russia, 650066
        • Octapharma Research Site
      • Moscow, Russia, 115478
        • Octapharma Research Site
      • Moscow, Russia, 125284
        • Octapharma Research Site
      • Nizhny Novgorod, Russia, 603126
        • Octapharma Research Site
      • Novosibirsk, Russia, 630051
        • Octapharma Research Site
      • Petrozavodsk, Russia, 185019
        • Octapharma Research Site
      • Rostov-on-Don, Russia, 344037
        • Octapharma Research Site
      • Saint Petersburg, Russia, 191024
        • Octapharma Research Site
      • Samara, Russia, 443079
        • Octapharma Research Site
      • Tomsk, Russia, 634063
        • Octapharma Research Site
      • Tula, Russia, 300053
        • Octapharma Research Site
      • Ufa, Russia, 450008
        • Octapharma Research Site
      • Yekaterinburg, Russia, 620102
        • Octapharma Research Site
      • Madrid, Spain, 28040
        • Octapharma Research Site
      • Madrid, Spain, 28046
        • Octapharma Research Site
      • Madrid, Spain, 28034
        • Octapharma Research Site
      • Oviedo, Spain, 33011
        • Octapharma Research Site
      • Santander, Spain, 39008
        • Octapharma Research Site
      • Antalya, Turkey (Türkiye), 7050
        • Octapharma Research Site
      • Cebeci/Ankara, Turkey (Türkiye), 65900
        • Octapharma Research Site
      • Fatih/Istanbul, Turkey (Türkiye), 34093
        • Octapharma Research Site
      • Kazimdirik, Turkey (Türkiye), 35100
        • Octapharma Research Site
      • Melikgazi/Kayseri, Turkey (Türkiye), 38039
        • Octapharma Research Site
    • Florida
      • St. Petersburg, Florida, United States, 33709
        • Octapharma Research Site
    • Georgia
      • Columbus, Georgia, United States, 31904
        • Octapharma Research Site
      • Macon, Georgia, United States, 31201
        • Octapharma Research Site
    • Louisiana
      • New Orleans, Louisiana, United States, 70112
        • Octapharma Research Site
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • Octapharma Research Site
      • Baltimore, Maryland, United States, 21205
        • Octapharma Research Site
    • Michigan
      • Detroit, Michigan, United States, 48093
        • Octapharma Research Site
    • Minnesota
      • Rochester, Minnesota, United States, 55902
        • Octapharma Research Site
    • New York
      • Buffalo, New York, United States, 14260
        • Octapharma Research Site
      • New York, New York, United States, 10065
        • Octapharma Research Site
      • New York, New York, United States, 10032
        • Octapharma Research Site
      • Shirley, New York, United States, 11967
        • Octapharma Research Site
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Octapharma Research Site
    • South Carolina
      • Charleston, South Carolina, United States, 29414
        • Octapharma Research Site
    • Texas
      • Houston, Texas, United States, 77090
        • Octapharma Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Treatment-naïve or relapsed/refractory CLL patients undergoing CLL antineoplastic treatment. Diagnosis of B-cell CLL established according to International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria and documented within medical records.
  2. Hypogammaglobulinemia (IgG levels <5 g/L) as confirmed by the Central Laboratory.
  3. ≥18 years of age.
  4. Voluntarily given, fully informed written and signed consent obtained before any study-related procedures are conducted.

Exclusion Criteria:

  1. IgG treatment within 3 months prior to Screening.
  2. Antibiotic prophylaxis and/or treatment within 7 days prior to Baseline (with the exception of trimethoprim-sulfamethoxazole [TMP/SMX], diaminodiphenyl sulfone [dapsone] and pentamidine inhalation).
  3. Current major infection or >1 major infection in the previous 6 months before Baseline.
  4. History of anaphylaxis or severe systemic response to immunoglobulin, blood or plasma-derived products or any Panzyga component.
  5. History of a non-CLL malignancy or other medical condition with life-expectancy of less than two years.
  6. Severe liver disease, with signs of ascites and/or hepatic encephalopathy.
  7. Severe kidney disease (as defined by estimated glomerular filtration rate [eGFR] <30 mL/min/1.73 m2).
  8. Body weight >140 kg.
  9. Eastern Cooperative Oncology Group (ECOG) performance score of >2 (Appendix 1).
  10. Female patients of childbearing potential unwilling to use a protocol-required method of contraception (as per protocol section 7.3.9 b) from the Screening Visit throughout the study treatment period and for 30 days following the last dose of study drug.
  11. Human immunodeficiency virus (HIV) infection at Screening (defined for the study as positive HIV antibody test).
  12. Patients found to be chronic carriers of hepatitis B virus (HBV), defined by positive surface antigen (HBsAg), positive Hepatitis B core antibodies (HBcAb) and/or low HBV titers, who will not receive targeted antiviral therapy while undergoing CLL therapy, and patients with active HBV, defined as high HBV titers.
  13. Uncontrolled hepatitis C infection at Screening (defined for the study as positive hepatitis virus C [HCV] polymerase chain reaction [PCR]).
  14. Pregnant and lactating women.
  15. Subjects with a history of thromboembolic events (TEE) such as deep vein thrombosis, pulmonary embolism, myocardial infarction, ischemic stroke, transient ischemic attack, peripheral artery disease (Fontaine IV) within 6 months before Baseline.
  16. Planned or ongoing immunosuppressive treatment (other than for CLL or corticosteroids) or other forbidden medication during the entire study duration after study enrollment.
  17. Participation in another interventional clinical trial that is either blinded or involves an investigational (not approved) product within 3 months before Baseline or during the course of the clinical study. Participation in observational clinical trials or open-label trials involving an approved product may be permitted after consultation with the medical monitor.
  18. Known IgA deficiency with antibodies to IgA.
  19. Known blood hyperviscosity, or other hypercoagulable states.
  20. Patients unable or unwilling to understand or comply with the study protocol.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Placebo
Experimental: Panzyga
Panzyga is a 10% IVIG produced from a pool of human fresh frozen plasma donations

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Occurrence of major infections
Time Frame: 52 weeks

Major infection for this trial is defined as:

  • Bacterial and/or viral infections resulting in death
  • Bacterial and/or viral infections, which are microbiologically documented (MDI) or clinically documented (CDI) requiring treatment with anti-infectives; upper respiratory tract infections, bronchitis, lower urinary tract infections, localized skin infections and stomatitis (MDI or CDI) are considered major only if they require treatment with antiinfectives AND hospitalization or hospitalization prolongation.
  • Fever of unknown origin (FUO) requiring hospitalization or hospitalization prolongation
52 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall infection rate
Time Frame: 52 weeks
Infection rate for all infections
52 weeks
Frequency of prophylaxis with anti-infectives
Time Frame: 52 weeks
Inclusive of antibacterials and antivirals
52 weeks
Duration of prophylaxis with anti-infectives
Time Frame: 52 weeks
Inclusive of antibacterials and antivirals
52 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 5, 2020

Primary Completion (Actual)

September 19, 2025

Study Completion (Actual)

September 19, 2025

Study Registration Dates

First Submitted

August 4, 2020

First Submitted That Met QC Criteria

August 4, 2020

First Posted (Actual)

August 6, 2020

Study Record Updates

Last Update Posted (Estimated)

October 3, 2025

Last Update Submitted That Met QC Criteria

October 2, 2025

Last Verified

October 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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