Trial Outcomes & Findings for A Study of Metronidazole Cream in the Prevention and Treatment of Tarceva (Erlotinib)-Associated Rash (NCT NCT00642473)

NCT ID: NCT00642473

Last Updated: 2016-05-23

Results Overview

Severity of the rash was evaluated semi-quantitatively using the scale of Common Terminology Criteria for Adverse Events version 3.0 (CTCAE v3.0). Grade 0: no rash; Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe; Grade 4: Life-threatening or disabling; Grade 5: Death related to rash. Same participant may be counted in more than one reported categories.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

34 participants

Primary outcome timeframe

After 2 weeks of metronidazole treatment

Results posted on

2016-05-23

Participant Flow

Participant milestones

Participant milestones
Measure
Prevention (Erlotinib + Metronidazole Actavis)
Participants received erlotinib 150 milligrams (mg) orally daily. Metronidazole actavis treatment was initiated the same day as the start of erlotinib. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Treatment (Erlotinib + Metronidazole Actavis)
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Overall Study
STARTED
18
16
Overall Study
COMPLETED
14
5
Overall Study
NOT COMPLETED
4
11

Reasons for withdrawal

Reasons for withdrawal
Measure
Prevention (Erlotinib + Metronidazole Actavis)
Participants received erlotinib 150 milligrams (mg) orally daily. Metronidazole actavis treatment was initiated the same day as the start of erlotinib. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Treatment (Erlotinib + Metronidazole Actavis)
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Overall Study
Withdrawal by Subject
0
5
Overall Study
Progression or death
2
4
Overall Study
Other
2
2

Baseline Characteristics

A Study of Metronidazole Cream in the Prevention and Treatment of Tarceva (Erlotinib)-Associated Rash

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Prevention (Erlotinib + Metronidazole Actavis)
n=18 Participants
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated the same day as the start of erlotinib. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Treatment (Erlotinib + Metronidazole Actavis)
n=16 Participants
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Total
n=34 Participants
Total of all reporting groups
Age, Continuous
68 years
STANDARD_DEVIATION 10.8 • n=5 Participants
70 years
STANDARD_DEVIATION 13.1 • n=7 Participants
69 years
STANDARD_DEVIATION 11.8 • n=5 Participants
Sex: Female, Male
Female
11 Participants
n=5 Participants
12 Participants
n=7 Participants
23 Participants
n=5 Participants
Sex: Female, Male
Male
7 Participants
n=5 Participants
4 Participants
n=7 Participants
11 Participants
n=5 Participants

PRIMARY outcome

Timeframe: After 2 weeks of metronidazole treatment

Population: All enrolled participants. Here, number of participants analyzed = participants who were evaluable for this outcome in respective arms.

Severity of the rash was evaluated semi-quantitatively using the scale of Common Terminology Criteria for Adverse Events version 3.0 (CTCAE v3.0). Grade 0: no rash; Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe; Grade 4: Life-threatening or disabling; Grade 5: Death related to rash. Same participant may be counted in more than one reported categories.

Outcome measures

Outcome measures
Measure
Left Side - Prevention (Erlotinib + Standard Procedures)
n=9 Participants
Participants received erlotinib 150 mg orally daily for 4 weeks. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream) to evaluate whether it was effective in the prevention of erlotinib associated rash .
Right Side - Prevention (Erlotinib + Metronidazole Actavis)
n=9 Participants
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash.
Left Side - Treatment (Erlotinib + Standard Procedures)
n=6 Participants
Participants received erlotinib 150 mg orally daily for 4 weeks. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream) to evaluate whether it was effective in the treatment of erlotinib associated rash.
Right Side - Treatment (Erlotinib + Metronidazole Actavis)
n=6 Participants
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash.
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Facial Rash: Grade 0 (n=9,9,6,6)
11 percentage of participants
22 percentage of participants
0 percentage of participants
33 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Chest Rash: Grade 0 (n=9,9,6,6)
56 percentage of participants
56 percentage of participants
33 percentage of participants
50 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Facial Rash: Grade 1 (n=9,9,6,6)
33 percentage of participants
22 percentage of participants
50 percentage of participants
33 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Chest Rash: Grade 1 (n=9,9,6,6)
33 percentage of participants
33 percentage of participants
17 percentage of participants
17 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Facial Rash: Grade 2 (n=9,9,6,6)
22 percentage of participants
33 percentage of participants
33 percentage of participants
17 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Chest Rash: Grade 2 (n=9,9,6,6)
11 percentage of participants
11 percentage of participants
33 percentage of participants
17 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Facial Rash: Grade 3 (n=9,9,6,6)
33 percentage of participants
22 percentage of participants
17 percentage of participants
17 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Chest Rash: Grade 3 (n=9,9,6,6)
0 percentage of participants
0 percentage of participants
17 percentage of participants
17 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Facial Rash: Grade 4 (n=9,9,6,6)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Chest Rash: Grade 4 (n=9,9,6,6)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Facial Rash: Grade 5 (n=9,9,6,6)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 2
Chest Rash: Grade 5 (n=9,9,6,6)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants

PRIMARY outcome

Timeframe: After 4 weeks of metronidazole treatment

Population: All enrolled participants. Here, number of participants analyzed = participants who were evaluable for this outcome in respective arms.

Severity of the rash was evaluated semi-quantitatively using the scale of CTCAE v3.0. Grade 0: no rash; Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe; Grade 4: Life-threatening or disabling; Grade 5: Death related to rash. Same participant may be counted in more than one reported categories.

Outcome measures

Outcome measures
Measure
Left Side - Prevention (Erlotinib + Standard Procedures)
n=8 Participants
Participants received erlotinib 150 mg orally daily for 4 weeks. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream) to evaluate whether it was effective in the prevention of erlotinib associated rash .
Right Side - Prevention (Erlotinib + Metronidazole Actavis)
n=8 Participants
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash.
Left Side - Treatment (Erlotinib + Standard Procedures)
n=4 Participants
Participants received erlotinib 150 mg orally daily for 4 weeks. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream) to evaluate whether it was effective in the treatment of erlotinib associated rash.
Right Side - Treatment (Erlotinib + Metronidazole Actavis)
n=4 Participants
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash.
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Facial Rash: Grade 0 (n=8,8,4,4)
13 percentage of participants
25 percentage of participants
0 percentage of participants
25 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Chest Rash: Grade 0 (n=8,8,4,4)
75 percentage of participants
63 percentage of participants
25 percentage of participants
50 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Facial Rash: Grade 1 (n=8,8,4,4)
63 percentage of participants
50 percentage of participants
50 percentage of participants
50 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Chest Rash: Grade 1 (n=8,8,4,4)
0 percentage of participants
13 percentage of participants
25 percentage of participants
25 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Facial Rash: Grade 2 (n=8,8,4,4)
13 percentage of participants
25 percentage of participants
25 percentage of participants
50 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Chest Rash: Grade 2 (n=8,8,4,4)
13 percentage of participants
13 percentage of participants
25 percentage of participants
25 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Facial Rash: Grade 3 (n=8,8,4,4)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Chest Rash: Grade 3 (n=8,8,4,4)
0 percentage of participants
13 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Facial Rash: Grade 4 (n=8,8,4,4)
13 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Chest Rash: Grade 4 (n=8,8,4,4)
13 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Facial Rash: Grade 5 (n=8,8,4,4)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants
Percentage of Participants With Erlotinib Associated Rash Stratified by Severity Grade at Week 4
Chest Rash: Grade 5 (n=8,8,4,4)
0 percentage of participants
0 percentage of participants
0 percentage of participants
0 percentage of participants

Adverse Events

Prevention (Erlotinib + Metronidazole Actavis)

Serious events: 3 serious events
Other events: 6 other events
Deaths: 0 deaths

Treatment (Erlotinib + Metronidazole Actavis)

Serious events: 5 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Prevention (Erlotinib + Metronidazole Actavis)
n=18 participants at risk
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated the same day as the start of erlotinib. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Treatment (Erlotinib + Metronidazole Actavis)
n=16 participants at risk
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Gastrointestinal disorders
Diarrhea
5.6%
1/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
0.00%
0/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
Respiratory, thoracic and mediastinal disorders
Dyspnea
0.00%
0/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
6.2%
1/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Death
11.1%
2/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
18.8%
3/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
General disorders
Falling
0.00%
0/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
6.2%
1/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.

Other adverse events

Other adverse events
Measure
Prevention (Erlotinib + Metronidazole Actavis)
n=18 participants at risk
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated the same day as the start of erlotinib. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the prevention of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Treatment (Erlotinib + Metronidazole Actavis)
n=16 participants at risk
Participants received erlotinib 150 mg orally daily. Metronidazole actavis treatment was initiated when participants developed rash. Metronidazole actavis 1% topical cream was applied on the right side of the face and chest twice daily for 4 weeks to evaluate whether it was effective in the treatment of erlotinib associated rash. Left side of the face and chest was treated according to local standard procedures (ie, with non-active moisturizing cream).
Gastrointestinal disorders
Diarrhea
22.2%
4/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
6.2%
1/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
Gastrointestinal disorders
Aphthae
5.6%
1/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
0.00%
0/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
Gastrointestinal disorders
Pain
5.6%
1/18 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.
0.00%
0/16 • Baseline to Week 4
Adverse events were not coded using MedDRA or any other standard coding dictionary. Rash was considered an efficacy parameter only and was not considered an adverse event for this study.

Additional Information

Medical Communications

Hoffmann-La Roche

Phone: 800-821-8590

Results disclosure agreements

  • Principal investigator is a sponsor employee The Study being conducted under this Agreement is part of the Overall Study. Investigator is free to publish in reputable journals or to present at professional conferences the results of the Study, but only after the first publication or presentation that involves the Overall Study. The Sponsor may request that Confidential Information be deleted and/or the publication be postponed in order to protect the Sponsor's intellectual property rights.
  • Publication restrictions are in place

Restriction type: OTHER