Trial · NCT00775944
Trial Comparing Different Methods of Support With Stopping Smoking (PORTSSS/Stop Together Trial)
NCT00775944, Phase 4, Completed, University of Nottingham; results first posted 2012-10-26
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Trial Comparing Different Methods of Support With Stopping Smoking (PORTSSS/Stop Together Trial). Trials, record NCT00775944. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00775944
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Trial Comparing Different Methods of Support With Stopping Smoking (PORTSSS/Stop Together Trial)
- NCT number
- NCT00775944
- Status
- Completed
- Phases
- Phase 4
- Enrollment
- 2,591 participants, actual
- Lead sponsor
- University of Nottingham
- Conditions
- Tobacco Smoking
- Interventions
- Proactive telephone support, Reactive (standard) telephone support, Offer of voucher for cost-free Nicotine Replacement Therapy
- First posted
- 2008-10-20
- Last updated
- 2012-10-26
- Results first posted
- 2012-10-26
Source ClinicalTrials.gov
Registered outcomes8
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Self-reported, Prolonged Abstinence From Smoking Between a Quit Date and 6 Months Afterwards. | 6 months from participant's quit date | Prolonged abstinence was defined as not smoking between a quit date and six months later with minor smoking lapses permitted as long as no more than 5 cigarettes in total were smoked during this period. |
| Secondary | Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 6 Months, With Carbon Monoxide (CO) Validation. | Measured 6 months after participant's quit date | The participant had to report not smoking for at least 7 days prior to the point of outcome assessment. |
| Secondary | Self-reported Abstinence From Smoking for at Least Three Months, Ascertained at 6 Months | Measured at 6 months after participant's quit date | Participants had to report not smoking in the three months prior to outcome ascertainment. |
| Secondary | Self-reported Prolonged Abstinence From Smoking Between a Quit Date and 1 Month | Measured at 1 month after participant's quit date | Prolonged abstinence was defined as not smoking between a quit date and one month later; minor lapses were permitted provided no more than 5 cigarettes in total had been smoked. |
| Secondary | Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 1 Month | Measured at 1 month after participant's quit date | Participants had to report not smoking for 7 or more days prior to outcome ascertainment. |
| Secondary | Number of Unsuccessful Quit Attempts Lasting > 24 Hrs Reported at One and 6 Months | Measured 6 months after participant's quit date | As title |
| Secondary | Health Status at 6 Months EuroQol 5D (EQ5D) | Measured 6 months after participant's quit date | This is a generic measure of health status used in health economic analyses. |
| Secondary | Use of Other NHS Smoking Cessation Interventions (e.g. Uptake of NHS Stop Smoking Services, Use of Other NRT Obtained From General Practitioner (GP) Etc.) | Measured 6 months after participant's quit date | Participants' recall of the use they have made of other stop smoking interventions that are available through the National Health Service. |
Source ClinicalTrials.gov
Outcomes8
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as |
|---|---|---|---|---|---|
| PRIMARY | Self-reported, Prolonged Abstinence From Smoking Between a Quit Date and 6 Months Afterwards. | 6 months from participant's quit date | All randomised cases | participants | NUMBER |
| SECONDARY | Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 6 Months, With Carbon Monoxide (CO) Validation. | Measured 6 months after participant's quit date | participants | NUMBER | |
| SECONDARY | Self-reported Abstinence From Smoking for at Least Three Months, Ascertained at 6 Months | Measured at 6 months after participant's quit date | All randomised cases | participants | NUMBER |
| SECONDARY | Self-reported Prolonged Abstinence From Smoking Between a Quit Date and 1 Month | Measured at 1 month after participant's quit date | All randomised cases | participants | NUMBER |
| SECONDARY | Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 1 Month | Measured at 1 month after participant's quit date | All randomised cases | participants | NUMBER |
| SECONDARY | Number of Unsuccessful Quit Attempts Lasting > 24 Hrs Reported at One and 6 Months | Measured 6 months after participant's quit date | |||
| SECONDARY | Health Status at 6 Months EuroQol 5D (EQ5D) | Measured 6 months after participant's quit date | |||
| SECONDARY | Use of Other NHS Smoking Cessation Interventions (e.g. Uptake of NHS Stop Smoking Services, Use of Other NRT Obtained From General Practitioner (GP) Etc.) | Measured 6 months after participant's quit date |
Source ClinicalTrials.gov
Results by group20
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units |
|---|---|---|---|---|---|
| Self-reported, Prolonged Abstinence From Smoking Between a Quit Date and 6 Months Afterwards. | Standard Support | 127 | participants | ||
| Self-reported, Prolonged Abstinence From Smoking Between a Quit Date and 6 Months Afterwards. | Proactive Telephone Support | 124 | participants | ||
| Self-reported, Prolonged Abstinence From Smoking Between a Quit Date and 6 Months Afterwards. | Standard Support & Offer of NRT | 114 | participants | ||
| Self-reported, Prolonged Abstinence From Smoking Between a Quit Date and 6 Months Afterwards. | Proactive Support & Offer of NRT | 104 | participants | ||
| Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 6 Months, With Carbon Monoxide (CO) Validation. | Standard Support | 62 | participants | ||
| Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 6 Months, With Carbon Monoxide (CO) Validation. | Proactive Telephone Support | 57 | participants | ||
| Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 6 Months, With Carbon Monoxide (CO) Validation. | Standard Support & Offer of NRT | 42 | participants | ||
| Self-reported Point Prevalence Abstinence From Smoking for at Least 7 Days, Ascertained at 6 Months, With Carbon Monoxide (CO) Validation. | Proactive Support & Offer of NRT | 39 | participants | ||
| Self-reported Abstinence From Smoking for at Least Three Months, Ascertained at 6 Months | Standard Support | 102 | participants | ||
| Self-reported Abstinence From Smoking for at Least Three Months, Ascertained at 6 Months | Proactive Telephone Support | 114 | participants |
1 to 10 of 20Source ClinicalTrials.gov
See all 20 results by groupParticipant flow12
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted |
|---|---|---|---|---|
| Overall Study | STARTED | Standard Support | 648 | |
| Overall Study | STARTED | Standard Support & Offer of NRT | 647 | |
| Overall Study | STARTED | Proactive Telephone Support | 648 | |
| Overall Study | STARTED | Proactive Support & Offer of NRT | 648 | |
| Overall Study | COMPLETED | Standard Support | 633 | |
| Overall Study | COMPLETED | Standard Support & Offer of NRT | 638 | |
| Overall Study | COMPLETED | Proactive Telephone Support | 632 | |
| Overall Study | COMPLETED | Proactive Support & Offer of NRT | 632 | |
| Overall Study | NOT COMPLETED | Standard Support | 15 | |
| Overall Study | NOT COMPLETED | Standard Support & Offer of NRT | 9 |
1 to 10 of 12Source ClinicalTrials.gov
See all 12 participant flowAdverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals12
The totals the trial posted for each group.
| Total | Group | Affected | At risk |
|---|---|---|---|
| Total, all-cause mortality | Standard Support | ||
| Total, all-cause mortality | Proactive Telephone Support | ||
| Total, all-cause mortality | Standard Support & Offer of NRT | ||
| Total, all-cause mortality | Proactive Support & Offer of NRT | ||
| Total, other adverse events | Standard Support | 0 | 0 |
| Total, other adverse events | Proactive Telephone Support | 0 | 0 |
| Total, other adverse events | Standard Support & Offer of NRT | 0 | 0 |
| Total, other adverse events | Proactive Support & Offer of NRT | 0 | 0 |
| Total, serious adverse events | Standard Support | 0 | 0 |
| Total, serious adverse events | Proactive Telephone Support | 0 | 0 |
1 to 10 of 12Source ClinicalTrials.gov
See all 12 adverse event totalsPapers16
The papers the trial lists on ClinicalTrials.gov.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT00775944
GET https://conductscience.org/api/trials/v1/NCT00775944/registered