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SmokersPhase 2NCT00369616

Efficacy and Safety of Nicotine-Qbeta Vaccine in Smokers

A Phase 2 study testing CYT002-NicQb in people with Smokers, run by Cytos Biotechnology AG at 3 sites in Switzerland.

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

The purpose of this study is to help smokers quitting by vaccinating them with CYT002-NicQb. Upon vaccination, the smoker will generate antibodies directed against free nicotine. The antibodies will bind nicotine and prevent its passage into the brain. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Smokers
What is being tested?
CYT002-NicQb
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
341 participants
Where
3 sitesSwitzerland
Study dates
Dec 2003to Oct 2005
Phase
Phase 2
Are there results?
None posted in the registry

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 18 to 70 years
  • All sexes
  • Adult, Older adult

Who may be able to join

  • Written informed consent
  • Age 18 to 70 years
  • Smokers: > 10 and ≤ 40 cigarettes per day and smoking history of more than 3 years
  • Fageström Test for Nicotine Dependence (FTND) score ≥ 5
  • Female participant must meet one of the following criteria: a) no reproductive potential due to menopause, hysterectomy, bilateral oophorectomy, or tubal ligation; b) agrees to consistently practice an effective and accepted method of contraception throughout the duration of the study and for 12 additional months after the last immunization

Who cannot join

  • Pregnant or nursing
  • History of severe allergy or immunological disorders
  • Blood donation within previous 30 days
  • Surgery within previous 30 days
  • Use of investigational drugs within previous 60 days
  • Significant cardiovascular disease:
Show all 27Show fewer
  • angina pectoris
  • congestive heart failure
  • clinically significant murmurs
  • previous angioplasty or coronary artery bypass surgery
  • Active infectious disease:
  • WBC > 12 000 cells/µL
  • Seropositivity for Hepatitis B and C
  • History of risk behavior to acquire HIV
  • Significant hepatic disease
  • Significant renal disease
  • Significant hematological disorder
  • Significant pulmonary disease
  • History of malignancy
  • Autoimmune disease
  • Organic neurological disorder or significant psychiatric disorder
  • Use of psychoactive drug within one month before enrolment
  • Abuse of drugs or alcohol
  • Subjects using any concomitant medications due to chronic illness which bears a high risk of fluctuation in disease activity or exacerbations during a 12-months period such as coronary heart disease, asthma, severe COPD, chronic rheumatoid disease, diabetes, etc. should be excluded.
  • Obesity: BMI > 35 kg/m2
  • Use of concomitant nicotine replacement treatment (NRT) at screening or visit 1
  • Any planned surgical intervention during the study period

Trial locations and contacts

3 sites in 1 country.

Switzerland3 sites
  • University Hospital Lausanne (CHUV)

    Lausanne, Canton of Vaud, 1011

  • Kantonsspital St. Gallen

    Sankt Gallen, Canton of St. Gallen, 9007

  • Lungenzentrum Hirslandenklinik Zuerich

    Zurich, Canton of Zurich, 8029

Other trials in Switzerland

About this study

Official title: Evaluation of Efficacy and Safety of Nicotine-Qbeta (NicQb) Vaccine Versus Placebo in Healthy Smokers

The purpose of this study is to help smokers quitting by vaccinating them with CYT002-NicQb. Upon vaccination, the smoker will generate antibodies directed against free nicotine. The antibodies will bind nicotine and prevent its passage into the brain. The successfully vaccinated smoker will have no reward effect after smoking, thus braking the vicious circle of nicotine addiction.

Conditions
Smokers
Being tested
CYT002-NicQb

What participants receive

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

  • CYT002-NicQbBiological

Study groups in NCT00369616
Study groupRoleWhat they receive
NicQb vaccineExperimentalNot described
Receives: Biological: CYT002-NicQb
Placebo vaccinePlacebo comparatorNot described
Receives: Biological: CYT002-NicQb

What is being measured

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

  1. Abstinence from smoking defined as self-reported abstinence and confirmed by measurement of carbon monoxide in exhaled air less than 10ppm

    Measured: Monthly up to month 6, and during follow-up at months 9 and 12

  2. Immunogenicity of the vaccine, by measuring specific anti-nicotine IgG antibodies by ELISA

    Measured: Baseline, monthly up to month 6, and months 9 and 12

  3. Safety and tolerability by recording adverse events, injection site examinations, vital signs, standard clinical laboratory (serum chemistry, hematology)

    Measured: Baseline, and at various times up to month 12

Secondary outcomes (1)
  1. Craving and withdrawal symptoms by Questionnaire on Smoking Urges and Wisconsin Withdrawal Scale

    Measured: Baseline, monthly up to month 6

Timeline

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

  1. First posted29 Aug 2006 (estimated)
  2. Study startDec 2003
  3. Primary completionMar 2005
  4. Study completionOct 2005

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
341 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00369616
Sponsor's protocol ID
CYT002-NicQb 02
Status last verified
Mar 2008
First submitted
25 Aug 2006
Last updated
15 Nov 2010
Results posted
No

Publications

  • Cornuz J, Zwahlen S, Jungi WF, Osterwalder J, Klingler K, van Melle G, Bangala Y, Guessous I, Muller P, Willers J, Maurer P, Bachmann MF, Cerny T. A vaccine against nicotine for smoking cessation: a randomized controlled trial. PLoS One. 2008 Jun 25;3(6):e2547. doi: 10.1371/journal.pone.0002547.

    PubMed 18575629

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing CYT002-NicQb in people with Smokers, run by Cytos Biotechnology AG at 3 sites in Switzerland.

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 5 inclusion and 27 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 15 Nov 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

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 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.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Abstinence from smoking defined as self-reported abstinence and confirmed by measurement of carbon monoxide in exhaled air less than 10ppm (time frame: Monthly up to month 6, and during follow-up at months 9 and 12). The study lists 3 primary outcomes in all. 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 NCT00369616, which also lists 1 linked publication.

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 15 Nov 2010.

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