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HIV InfectionsPhase 2/3MACRTNCT00000135

Studies of the Ocular Complications of AIDS (SOCA)--Monoclonal Antibody CMV Retinitis Trial (MACRT)

A Phase 2/3 study testing MSL-109 in people with HIV Infections and Cytomegalovirus Retinitis, run by Johns Hopkins Bloomberg School of Public Health.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To evaluate the efficacy and safety of a human anti-CMV monoclonal antibody, MSL-109, as adjunct therapy for controlling CMV retinitis. Read more about this study

Who is it for?
Ages 13 years and older
Conditions the study is for
HIV Infections, Cytomegalovirus Retinitis
What is being tested?
MSL-109
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
209 participants
Where
No sites listed yet
Study dates
Sep 1995to Aug 1996
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 13 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • 13 years or older at entry
  • Diagnosis of AIDS according to the Centers for Disease Control and Prevention (CDC) definition
  • Diagnosis of active CMV retinitis as determined by a SOCA-certified ophthalmologist at time of enrollment
  • At least one lesion whose size is one-quarter or more optic disc area
  • Currently receiving (for relapsed patients) or scheduled to receive (for newly diagnosed patients) drugs for primary treatment of CMV retinitis that are not contraindicated for use with MSL-109
  • Visual acuity, in at least one eye that meets other eligibility criteria, of 3 or more letters on ETDRS chart at 1 meter distance (Snellen equivalent 5/200). Patients with poorer visual acuity may be enrolled if the visual acuity impairment is possibly reversible (eg, due to optic disc edema) and vision is at least light perception in that eye
Show all 9Show fewer
  • Karnofsky score of 60 or more
  • Willingness and ability, with the assistance of a caregiver if necessary, to comply with treatment and follow up procedures
  • signed consent statement

Who cannot join

  • Current treatment with intravenous immune globulin (IVIG), CMV immune globulin (CMVIG), alpha-interferon (alpha-IFN), gamma-interferon (gamma-IFN) or interleukin-2 (IL-2)
  • Media opacity that precludes visualization of the fundus in all eyes meeting eligibility criteria
  • Active medical problems, including drug or alcohol abuse, that are considered sufficient to hinder compliance with treatment or follow up procedures
  • Retinal detachment, not scheduled for surgical repair, in all eyes meeting other eligibility criteria

About this study

Official title: Monoclonal Antibody CMV Retinitis Trial (MACRT)

To evaluate the efficacy and safety of a human anti-CMV monoclonal antibody, MSL-109, as adjunct therapy for controlling CMV retinitis.

Read the detailed description

CMV retinitis is the most common intraocular infection in patients with AIDS and is estimated to affect 35 to 40 percent of patients with AIDS. Untreated CMV retinitis is a progressive disorder, the end result of which is total retinal destruction and blindness. As of September 1996, drugs approved by the United States Food and Drug Administration (FDA) for the treatment of CMV retinitis were ganciclovir (Cytovene), foscarnet (Foscavir), and cidofovir (Vistide). All systemically administered anti-CMV drugs are given in a similar fashion consisting of initial 2-week high-dose treatment (induction) to control the infection followed by long-term lower dose treatment (maintenance) to prevent relapse. Ganciclovir is available in both intravenous and oral formulations, foscarnet only in an intravenous formulation, and cidofovir is given by intermittent intravenous administration. A surgically implanted intraocular sustained-release ganciclovir device (Vitrasert) is also approved by the FDA for the treatment of CMV retinitis.

Despite the use of continuous maintenance therapy, given enough time, all patients with CMV retinitis on systemically administered drugs relapse. Preliminary studies suggested that the anti-CMV monoclonal antibody, MSL-109, when administered in conjunction with ganciclovir, markedly prolonged the time to relapse. Therefore, a randomized controlled clinical trial evaluating MSL-109 as adjunct therapy was conducted.

The MACRT was a randomized, placebo-controlled, multicenter clinical trial evaluating the efficacy and safety of MSL-109 as adjunct therapy for the treatment of CMV retinitis. Patients with CMV retinitis, both those newly diagnosed and those suffering a relapse with active retinitis, were eligible. Primary therapy (e.g., ganciclovir, foscarnet, etc.) was determined by the treating local physician. The patients enrolled in the trial were randomized to either MSL-109 or placebo, administered as a rapid intravenous infusion every 2 weeks. Outcomes included survival, retinitis progression, change in amount of retinal area involved by CMV, loss of visual function (acuity and field), and morbidity.

Being tested
MSL-109, Placebo
Medical subject headings
HIV Infections, Cytomegalovirus Retinitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MSL-109Drug

    Also called Monoclonal antibodies

    60 mg, IV (in vein) every two weeks, treatment continued until death or common closeout.

  • PlaceboOther

    60 mg, IV (in vein) every two weeks, treatment continued until death or common closeout.

Study groups in NCT00000135
Study groupRoleWhat they receive
MSL-109ExperimentalThe dose MSL-109 administered by intravenous infusion every 2 weeks 60 mg.
Receives: Drug: MSL-109
PlaceboPlacebo comparatorPlacebo administered intravenous infusion every 2 weeks 60 mg.
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mortality Rate

    to evaluate the efficacy of an intravenous human monoclonal antibody to cytomegalovirus (CMV), MSL-109, as adjuvant treatment for CMV retinitis. .

    Measured: All patients enrolled were followed for a 17 month period or until a common study closing date

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Sep 1999 (estimated)
  2. Study startSep 1995
  3. Primary completionAug 1996
  4. Study completionAug 1996

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
209 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00000135
Sponsor's protocol ID
NEI-34
Acronym
MACRT
Status last verified
Jul 2015
First submitted
23 Sep 1999
Last updated
17 Nov 2015
Data monitoring committee
Yes

Publications

  • MSL-109 adjuvant therapy for cytomegalovirus retinitis in patients with acquired immunodeficiency syndrome: the Monoclonal Antibody Cytomegalovirus Retinitis Trial. The Studies of Ocular Complications of AIDS Research Group. AIDS Clinical Trials Group. Arch Ophthalmol. 1997 Dec;115(12):1528-36.

    PubMed 9400786
  • Jabs DA, Gilpin AM, Min YI, Erice A, Kempen JH, Quinn TC; Studies of Ocular Complications of AIDS Research Group. HIV and cytomegalovirus viral load and clinical outcomes in AIDS and cytomegalovirus retinitis patients: Monoclonal Antibody Cytomegalovirus Retinitis Trial. AIDS. 2002 Apr 12;16(6):877-87. doi: 10.1097/00002030-200204120-00007.

    PubMed 11919489
  • Davidson M, Min YI, Holbrook JT, Van Natta M, Quinn TC, Murphy RL, Welch W, Jabs DA, Meinert CL; Studies of Ocular Complications of AIDS Research Group. Influence of filgrastim (granulocyte colony-stimulating factor) on human immunodeficiency virus type 1 RNA in patients with cytomegalovirus retinitis. J Infect Dis. 2002 Oct 1;186(7):1013-8. doi: 10.1086/342956. Epub 2002 Aug 29.

    PubMed 12232843
  • Gilpin AM, Holbrook JT, Jabs DA, Meinert CL; Studies of Ocular Complications of AIDS Research Group. Data and safety monitoring board deliberations resulting in the early termination of the Monoclonal Antibody Cytomegalovirus Retinitis Trial. Control Clin Trials. 2003 Feb;24(1):92-8. doi: 10.1016/s0197-2456(02)00268-4.

    PubMed 12559647
  • Holland GN, Van Natta ML, Goldenberg DT, Ritts R Jr, Danis RP, Jabs DA; Studies of Ocular Complications of AIDS Research Group. Relationship Between Opacity of Cytomegalovirus Retinitis Lesion Borders and Severity of Immunodeficiency Among People With AIDS. Invest Ophthalmol Vis Sci. 2019 May 1;60(6):1853-1862. doi: 10.1167/iovs.18-26517.

    PubMed 31042791

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing MSL-109 in people with HIV Infections and Cytomegalovirus Retinitis, run by Johns Hopkins Bloomberg School of Public Health.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Nov 2015. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Nov 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mortality Rate (time frame: All patients enrolled were followed for a 17 month period or until a common study closing date). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00000135, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Nov 2015.

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