Table AD7.2.3.3.1

Reasons for Premature Study Discontinuation From Protocol 212

 

Bupropion Sustained-Release Dosage Group

150 mg/d (N=152)

300 mg/d (N=150)

Placebo N=154)

#

% of N

#

% of N

#

% of N

Inadequate Response/

Condition Deteriorated

5

3.3%

17

11.3%

13

8.4%

Adverse Experience

5

3.3%

7

4.7%

3

1.9%

Lost to Follow-up/Other

1

0.7%

2

1.3%

6

3.9%

Consent Withdrawn

15

9.9%

14

9.3%

17

11.0%

Protocol Violation

7

4.6%

7

4.7%

9

5.8%

Total

33

21.7%

47

31.3%

48

31.2%

 

AD7.2.3.3.2          Demographic Characteristics

 

Table AD5.1.2.2 above presents the demographic of the patients enrolled.  The majority were female, consistent with typical gender patterns for major depression.  There were no appreciable differences between treatment groups on the basis of age or race.  Seventy-one per cent, 7 per cent, and 69 per cent, respectively, of patients in the 150 mg, 300 mg, and placebo groups were experienced a recurrent episode of depression.  The three groups were roughly comparable as to characterization of the present episode as agitated vs. retarded vs. uncomplicated depression.

 

AD7.2.3.3.3          Baseline Illness Severity

 

Appendix AD7.2.3.3 presents the baseline and follow-up measures of illness severity.  Pairwise contrasts of baseline symptom scores on the efficacy measures across treatment groups based on means and standard deviations supplied by the sponsor were performed using t-tests (cf: Stanton A. Glantz, Primer of Biostatistics, 1992, p. 81).   After corrections for multiple comparisons testing, there were no statistically significant differences between groups.

 

AD7.2.3.3.4          Dosing Information

 

The sponsor calculated mean daily dosages of medication intake from the eighth day of the study (by which time patients had been titrated up to the full dosage level) through day of discontinuation.  The mean daily dose of bupropion sustained-release ingested by the 150 mg/d group was 144 mg.  The mean daily dose of bupropion sustained-release ingested by the 300 mg/d group was 276 mg.

 

AD7.2.3.3.5          Concomitant Medications

 

Concomitant medication was administered to 70% of 150 mg/d patients, 75% of 300 mg/d patients, and 67% of placebo patients.  The most commonly administered medications were non-narcotic analgesics, miscellaneous cold preparations or antihistamines, female hormones or birth control pills, and antibiotic or antiviral agents.

 

 

Bupropion SR Clinical Review Addendum for Protocol 212                         6

 

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