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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00007501
Other study ID # 403
Secondary ID
Status Completed
Phase Phase 3
First received December 29, 2000
Last updated July 2, 2013
Start date November 1998
Est. completion date February 2011

Study information

Verified date July 2013
Source VA Office of Research and Development
Contact n/a
Is FDA regulated No
Health authority United States: Federal GovernmentUnited States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

The incidence and severity of HZ (or shingles), as well as the frequency and severity of its complications, increases markedly with increasing age. More than half of all cases occur in persons over the age of 60. Even without complications, HZ can interfere with an elderly patient's ability to perform essential activities of daily living, resulting in a loss of independence that is emotionally devastating and frequently irreversible. The most common complication of HZ in elderly persons is postherpetic neuralgia (PHN), which frequently results in disordered sleep, chronic fatigue, anxiety and severe depression. Antiviral therapy has a modest impact on the acute phase of HZ. However, it does not appear to prevent the development of PHN.

This study is a 5.5 year randomized, double-blind, placebo-controlled, efficacy trial to determine whether vaccination with live-attenuated Oka/Merck varicella-zoster decreases the incidence and/or severity of herpes zoster (HZ) and its complications in adults 60 years of age and older.


Description:

Primary Hypothesis:

Immunization with live, attenuated (Oka/Merck) varicella-zoster vaccine will significantly reduce the burden of illness associated with herpes zoster (HZ).

Secondary Hypotheses:

Immunization with live, attenuated (Oka/Merck) varicella-zoster vaccine will reduce the incidence of postherpetic neuralgia (PHN).

Primary Outcomes:

The primary outcome is the burden of illness due to HZ defined by the area under the worst pain versus time curve measured during the 6 month period following HZ rash onset in subjects who develop of HZ. The burden of illness outcome is sensitive to the incidence, severity, and duration of HZ-associated pain. The secondary outcome is the incidence of PHN, where PHN is defined as HZ-associated pain rated as greater than or equal to 3 (on a 0 to 10 scale) persisting or appearing more than 30 days after the onset of the HZ rash.

Interventions:

Immunization with 0.5 ml, live, attenuated (Oka/Merck) varicella-zoster vaccine versus vaccine placebo.

Study Abstract:

The incidence and severity of HZ (or shingles), as well as the frequency and severity of its complications, increases markedly with increasing age. More than half of all cases occur in persons over the age of 60. Even without complications, HZ can interfere with an elderly patient's ability to perform essential activities of daily living, resulting in a loss of independence that is emotionally devastating and frequently irreversible. The most common complication of HZ in elderly persons is postherpetic neuralgia (PHN), which frequently results in disordered sleep, chronic fatigue, anxiety and severe depression. Antiviral therapy has a modest impact on the acute phase of HZ. However, it does not appear to prevent the development of PHN.

This study was a 5.5 year randomized, double-blind, placebo-controlled, efficacy trial to determine whether vaccination with live-attenuated Oka/Merck varicella-zoster decreases the incidence and/or severity of herpes zoster (HZ) and its complications in adults 60 years of age and older; 37,200 subjects over 60 years of age will be randomized at 22 sites to receive either vaccine or placebo. At least one third of the subjects were to be 70 years of age or older. Subjects were followed actively for HZ until at least 750 cases of HZ and at least 62 cases of PHN occurred. Subjects who developed HZ were evaluated for severity and duration of associated pain, extent and duration of rash, and for changes in quality of life associated with the disease for six months after the onset of HZ rash. All adverse events (serious and non-serious) occurring within 42 days after vaccination were recorded. Thereafter, serious adverse events were recorded if assessed as possibly related to the vaccination. An adverse event substudy was to enroll 6000 subjects for recording all adverse events on a vaccination Report Card. Substudy participants were also followed for any hospital admissions during the study.

The study was initiated in December 1998. Patient recruitment began in November 1998 at one site, at 20 sites between February 1999 and July 1999, and at one site that was added in January 2000. On September 26, 2001, enrollment in the study was completed with 38,456 randomized subjects. The time point for the study definition of PHN was changed by protocol amendment from 30 days to 90 days after HZ rash onset. A formal sample size re-estimation was performed in June 2003. The Executive Committee and DSMB reviewed these results and approved the increase in event size from 400 to 750 evaluable cases of HZ for the primary endpoint. It was projected that the number of evaluable cases of HZ for the primary endpoint and the number of evaluable cases of PHN for the secondary (co-primary) endpoint would be observed by the end of September 2003. Therefore, the Study initiated its closeout plan beginning in October 2004. Follow-up of the last suspected case of HZ was completed in March 2004 and closeout interviews for the more than 37,000 surviving subjects were completed as of April 28, 2004.

The results of the main efficacy and safety analyses were unblinded on December 1, 2004, and presented to the DSMB, Executive Committee, and representatives for Merck & Co., Inc. Letters were sent to the study subjects informing them of the overall results and the treatment they received. The main manuscript was published in the New England Journal of Medicine (June 2005; 352:2271-84). The vaccine was approved for the prevention of shingles by the FDA on May 25, 2006. The main efficacy study is closed. Additionally, three substudies have been conducted:

A substudy (CSP#403B) was initiated in November 2005 to offer investigational zoster vaccine to the placebo recipients of CSP#403. Vaccination was completed in March 2007 with 13,681 (75%) of the placebo recipients vaccinated. This substudy is closed. The safety results from the substudy were published in the Journal of Infectious Diseases (J Infect Dis. 2013 May 31 epub).

A short-term persistence substudy (CSP#403A) was initiated in September 2004 to extend the follow-up vaccine and placebo recipients to assess the longer term effectiveness of the vaccine. This substudy bridged the period between the end of the efficacy study and the vaccination of placebo recipients and the initiation of a long-term persistence study. The study enrolled 14,270 subjects and completed follow-up in May 2007. This substudy is closed and is in ongoing analysis. The primary results for this study were published in Clinical Infectious Diseases (Clin Infect Dis. 2012 Nov 15;55(10):1320-1328)

CSP#403C, the Long-Term Persistence Substudy, was initiated in March 2006 and enrolled 6867 vaccine recipients from the main efficacy study. Enrollment was restricted to vaccine recipients from the main efficacy study with no history of herpes zoster. This study was initiated to complete an additional five-years of follow-up post-vaccination. The objective of this study was to estimate the longer-term durability of zoster vaccine efficacy by following a cohort of vaccine recipients from the primary efficacy study for three study outcomes: 1) the incidence of herpes zoster, 2) the incidence of postherpetic neuralgia (PHN), and 3) the burden of illness (BOI) due to herpes zoster. The study completed surveillance for new cases of herpes zoster as of December 2010 and completed the follow-up of the last case of herpes zoster in February 2011. All study sites have been closed out. This substudy has been completed and is in the final analysis phase.


Other known NCT identifiers
  • NCT00023257
  • NCT00001907
  • NCT00006065
  • NCT00006069

Recruitment information / eligibility

Status Completed
Enrollment 38456
Est. completion date February 2011
Est. primary completion date April 2004
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 60 Years and older
Eligibility Inclusion Criteria:

- Adults 60 years of age and older.

- History of Chickenpox.

- Have given written informed consent prior to enrollment.

- History of varicella or long-term (greater than or equal to 30 years) residence in the continental USA.

Exclusion Criteria:

- No history of shingles, no current history of immune suppression (e.g. malignancy or neoplastic disease, corticosteroid therapy).

- No immunosuppression resulting from disease (e.g., malignancy; HIV infection), corticosteroids (except intermittent topical or inhaled corticosteroid [greater than 800 mcg/day beclomethasone dipropionate or equivalent]), or other immunosuppressive/cytotoxic therapy (cancer chemotherapy or organ transplantation).

- No active neoplastic disease (except local skin cancer or other malignancies [e.g., prostate cancer] that are stable in the absence of immunosuppressive/cytotoxic therapy).

- No prior Herpes Zoster.

- No prior receipt of varicella vaccine.

- No allergic sensitivity to neomycin.

- No history of anaphylactoid reaction to gelatin.

- No significant underlying illness that would be expected to prevent completion of the study (e.g., life-threatening disease likely to limit survival to less than 5 years).

- Not ambulatory (must not be bed-ridden or homebound).

- No receipt of immune globulin or any other blood product within 3 months before or planned during the 3-5 year study period.

- No receipt of any other immunizations within one month before study vaccination (2 weeks in the case of inactivated influenza vaccines or other non-replicating immunization products [e.g., dT, pneumococcal vaccine, hepatitis A vaccine, hepatitis B vaccine]), or scheduled within 6 weeks after study vaccination.

- Not currently receiving antiviral therapy.

- No other condition (e.g., extensive psoriasis, chronic pain syndrome, cognitive impairment, severe hearing loss) that, in the opinion of the investigator, might interfere with the evaluations required by the study.

- No intercurrent illness (e.g., urinary tract infection, influenza) that might interfere with the interpretation of the study.

- No females who are pre-menopausal.

- No subjects unlikely to adhere to protocol follow-up.

- No subjects involved in a conflicting (vaccine or investigational drug) clinical trial.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention


Intervention

Biological:
Varicella-zoster vaccine
Immunization with 0.5 ml, live, attenuated (Oka/Merck) varicella-zoster vaccine.
Placebo
Placebo vaccine

Locations

Country Name City State
United States New Mexico VA Health Care System, Albuquerque Albuquerque New Mexico
United States VA Ann Arbor Healthcare System Ann Arbor Michigan
United States VA Maryland Health Care System, Baltimore Baltimore Maryland
United States NIH-NIAID (Bethesda, MD) Bethesda Maryland
United States VA Medical Center, Birmingham Birmingham Alabama
United States VA Medical Center, Jamaica Plain Campus Boston Massachusetts
United States University of Colorado Denver Colorado
United States VA Medical Center, Durham Durham North Carolina
United States Edward Hines, Jr. VA Hospital Hines Illinois
United States Baylor University Houston Texas
United States VA Medical Center, Lexington Lexington Kentucky
United States VA Medical Center, Minneapolis Minneapolis Minnesota
United States Vanderbilt University Nashville Tennessee
United States New York Harbor HCS New York New York
United States VA Medical Center, Northport Northport New York
United States VA Palo Alto Health Care System Palo Alto California
United States Rochester, NY (NIH) Rochester New York
United States University of Texas at San Antonio San Antonio Texas
United States VA San Diego Healthcare System, San Diego San Diego California
United States VA Puget Sound Health Care System, Seattle Seattle Washington
United States VA Medical Center, St Louis St Louis Missouri
United States James A. Haley Veterans Hospital, Tampa Tampa Florida

Sponsors (3)

Lead Sponsor Collaborator
VA Office of Research and Development Merck Sharp & Dohme Corp., National Institute of Allergy and Infectious Diseases (NIAID)

Country where clinical trial is conducted

United States, 

References & Publications (8)

Harbecke R, Oxman MN, Arnold BA, Ip C, Johnson GR, Levin MJ, Gelb LD, Schmader KE, Straus SE, Wang H, Wright PF, Pachucki CT, Gershon AA, Arbeit RD, Davis LE, Simberkoff MS, Weinberg A, Williams HM, Cheney C, Petrukhin L, Abraham KG, Shaw A, Manoff S, Ant — View Citation

Levin MJ, Oxman MN, Zhang JH, Johnson GR, Stanley H, Hayward AR, Caulfield MJ, Irwin MR, Smith JG, Clair J, Chan IS, Williams H, Harbecke R, Marchese R, Straus SE, Gershon A, Weinberg A; Veterans Affairs Cooperative Studies Program Shingles Prevention Stu — View Citation

Morrison VA, Oxman MN, Levin MJ, Schmader KE, Guatelli JC, Betts RF, Gelb LD, Pachucki CT, Keay SK, Menzies B, Griffin MR, Kauffman CA, Marques AR, Toney JF, Simberkoff MS, Serrao R, Arbeit RD, Gnann JW, Greenberg RN, Holodniy M, Keitel WA, Yeh SS, Davis — View Citation

Oxman MN, Levin MJ, Johnson GR, Schmader KE, Straus SE, Gelb LD, Arbeit RD, Simberkoff MS, Gershon AA, Davis LE, Weinberg A, Boardman KD, Williams HM, Zhang JH, Peduzzi PN, Beisel CE, Morrison VA, Guatelli JC, Brooks PA, Kauffman CA, Pachucki CT, Neuzil K — View Citation

Schmader KE, Johnson GR, Saddier P, Ciarleglio M, Wang WW, Zhang JH, Chan IS, Yeh SS, Levin MJ, Harbecke RM, Oxman MN; Shingles Prevention Study Group. Effect of a zoster vaccine on herpes zoster-related interference with functional status and health-rela — View Citation

Schmader KE, Oxman MN, Levin MJ, Johnson G, Zhang JH, Betts R, Morrison VA, Gelb L, Guatelli JC, Harbecke R, Pachucki C, Keay S, Menzies B, Griffin MR, Kauffman C, Marques A, Toney J, Keller PM, Li X, Chan IS, Annunziato P; Shingles Prevention Study Group — View Citation

Simberkoff MS, Arbeit RD, Johnson GR, Oxman MN, Boardman KD, Williams HM, Levin MJ, Schmader KE, Gelb LD, Keay S, Neuzil K, Greenberg RN, Griffin MR, Davis LE, Morrison VA, Annunziato PW; Shingles Prevention Study Group. Safety of herpes zoster vaccine in — View Citation

Weinberg A, Zhang JH, Oxman MN, Johnson GR, Hayward AR, Caulfield MJ, Irwin MR, Clair J, Smith JG, Stanley H, Marchese RD, Harbecke R, Williams HM, Chan IS, Arbeit RD, Gershon AA, Schödel F, Morrison VA, Kauffman CA, Straus SE, Schmader KE, Davis LE, Levi — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Reduce burden of illness due to herpes zoster (HZ) Incidence of postherpetic neuralgia (PHN), where PHN is defined as HZ-associated pain greater than or equal to 3 persisting or appearing more than 30 days after the onset of the HZ rash No
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