Efficacy and Safety Study of Adalimumab in Treatment of Hidradenitis Suppurativa (PIONEER I)
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT01468207 |
Recruitment Status :
Completed
First Posted : November 9, 2011
Results First Posted : October 28, 2015
Last Update Posted : July 7, 2021
|
- Study Details
- Tabular View
- Study Results
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Hidradenitis Suppurativa (HS) | Biological: adalimumab Biological: placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 307 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Phase 3 Multicenter Study of the Safety and Efficacy of Adalimumab in Subjects With Moderate to Severe Hidradenitis Suppurativa - PIONEER I |
Study Start Date : | November 2011 |
Actual Primary Completion Date : | January 2014 |
Actual Study Completion Date : | January 2014 |

Arm | Intervention/treatment |
---|---|
Placebo Comparator: Placebo
Placebo for 12 weeks.
|
Biological: placebo
Placebo pre-filled syringe, administered by subcutaneous injection |
Experimental: Adalimumab Every Week (EW)
Adalimumab ew for 12 weeks (160 mg at Week 0; 80 mg at Week 2; and 40 mg ew from Week 4 to Week 12).
|
Biological: adalimumab
Adalimumab pre-filled syringe, administered by subcutaneous injection
Other Name: Humira |
Experimental: Placebo/Adalimumab Every Week (EW)
Participants randomized to receive placebo in Period 1 received adalimumab 160 mg at Week 12, 80 mg at Week 14, and 40 mg ew from Week 16 to Week 35 in Period 2 (up to 24 weeks).
|
Biological: adalimumab
Adalimumab pre-filled syringe, administered by subcutaneous injection
Other Name: Humira Biological: placebo Placebo pre-filled syringe, administered by subcutaneous injection |
Experimental: Adalimumab Every Week (EW)/Placebo
Participants randomized to receive adalimumab ew in Period 1 were re-randomized to receive placebo ew from Week 12 to Week 35 in Period 2 (up to 24 weeks).
|
Biological: adalimumab
Adalimumab pre-filled syringe, administered by subcutaneous injection
Other Name: Humira Biological: placebo Placebo pre-filled syringe, administered by subcutaneous injection |
Experimental: Adalimumab Every Week (EW)/ Adalimumab Every Other Week (EOW)
Participants randomized to receive adalimumab ew in Period 1 were re-randomized to receive adalimumab 40 mg eow from Week 12 to Week 35 in Period 2; placebo injections were administered eow from Week 13 to Week 35 (up to 24 weeks).
|
Biological: adalimumab
Adalimumab pre-filled syringe, administered by subcutaneous injection
Other Name: Humira |
Experimental: Adalimumab Every Week (EW)/Adalimumab Every Week (EW)
Participants randomized to receive adalimumab ew in Period 1 were re-randomized to receive 40 mg adalimumab ew from Week 12 to Week 35 in Period 2 (up to 24 weeks).
|
Biological: adalimumab
Adalimumab pre-filled syringe, administered by subcutaneous injection
Other Name: Humira |
- Percentage of Participants Achieving Hidradenitis Suppurativa Clinical Response (HiSCR) at Week 12 [ Time Frame: Baseline (Week 0) up to Week 12 ]HiSCR was defined as at least a 50% reduction in abscess and inflammatory nodule (AN) count with no increase in abscess count and no increase in draining fistula count at Week 12 relative to Baseline. Data are presented for all participants and by baseline Hurley Stage (Stage 1: Abscess formation, single or multiple, without sinus tracts and scarring; Stage II: One or more widely separated recurrent abscesses with tract formation and scars. A participant with at least 1 anatomic region with Hurley Stage II disease and with no anatomic regions with Hurley Stage III disease was classified as Hurley Stage II; and Stage III: Multiple interconnected tracts and abscesses across the entire area, with diffuse or near diffuse involvement. A participant with at least 1 anatomic region with Hurley Stage III disease was classified as Hurley Stage III). Non-responder imputation (NRI): Participants with missing data were considered non-responders.
- Percentage of Participants With Baseline Hurley Stage II Who Achieved Abscess and Inflammatory Nodule (AN) Count of 0, 1, or 2 at Week 12 [ Time Frame: Baseline (Week 0) up to Week 12 ]The percentage of participants with AN counts lowered to 0, 1, or 2 at Week 12 among participants with Hurley Stage II at Baseline. NRI: Participants with missing data were considered non-responders.
- Percentage of Participants Achieving At Least 30% Reduction and At Least 1 Unit Reduction From Baseline in Patient's Global Assessment of Skin Pain (NRS30) - At Worst at Week 12 Among Participants With Baseline Skin Pain NRS ≥ 3 [ Time Frame: Baseline (Week 0) up to Week 12 ]The Patient's Global Assessment of Skin Pain Numeric Rating Scale (NRS) was used to assess the worst skin pain and the average skin pain due to HS. Ratings for the 2 items range from 0 (no skin pain) to 10 (skin pain as bad as you can imagine). The assessments were completed on a daily diary by participants before they went to bed and responded to the items based on a recall period of the "last 24 hours." The percentage of participants who achieved at least 30% reduction and at least 1 unit reduction from Baseline in the Patient's Global Assessment of Skin Pain (NRS30) - at worst at Week 12 among participants with Baseline NRS ≥ 3 are presented. Weekly averages of daily assessments were analyzed. NRI: Participants with missing data were considered non-responders.
- Change From Baseline to Week 12 in Modified Sartorius Score [ Time Frame: Baseline (Week 0) and Week 12 ]The Sartorius Scale is used to quantify the severity of HS. Points are awarded for 12 body areas (left and right axillae, left and right sub/inframammary areas, intermammary area, left and right buttocks, left and right inguino-crural folds, perianal area, perineal area, and other): points were awarded for nodules (2 points for each); abscesses (4 points); fistulas (4 points); scars (1 point); other findings (1 point); and longest distance between two lesions (2-6 points, 0 if no lesions); and if lesions are separated by normal skin (yes-0 points; No-6 points). The total Sartorius score is the sum of the 12 regional scores. Last Observation Carried Forward (LOCF): The last completed evaluation from the previous visit within the particular period for efficacy measures was carried forward to impute missing data at later visits in the same period. Baseline efficacy evaluations were not carried forward.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 99 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Adults must have a diagnosis of HS for at least 1 year prior to Baseline.
- HS lesions must be present in at least two distinct anatomical areas, one of which must be at least Hurley Stage II or Hurley Stage III.
- Subject must have stable HS for at least 60 days prior to Screening visit and at Baseline visit.
- Subject must have experienced an inadequate response to at least a 90-day treatment of oral antibiotics for treatment of HS.
- Subject must have a total AN count of greater than or equal to 3 at baseline.
Exclusion Criteria:
- Subject was previously treated with adalimumab or another anti-tumor necrosis factor (anti-TNF) therapy (e.g., infliximab or etanercept).
- Subject received any oral antibiotic treatment for HS within 28 days prior to Baseline.
- Subject received oral concomitant analgesics (including opioids) for HS-related pain within 14 days prior to Baseline visit.
-
If entering the study on concomitant oral analgesics for non-HS related pain:
- Subject on opioid analgesics within 14 days prior to Baseline visit;
- Subject not on a stable dose of non-opioid oral analgesics for at least 14 days prior to the Baseline visit ("as needed" is not considered a stable dose).

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01468207
Study Chair: | David Williams, MD | AbbVie |
Publications of Results:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | AbbVie (prior sponsor, Abbott) |
ClinicalTrials.gov Identifier: | NCT01468207 |
Other Study ID Numbers: |
M11-313 2011-003400-20 ( EudraCT Number ) |
First Posted: | November 9, 2011 Key Record Dates |
Results First Posted: | October 28, 2015 |
Last Update Posted: | July 7, 2021 |
Last Verified: | July 2021 |
acne psoriasis hidradenitis suppurativa TNF HS PIONEER I |
acne inversa boil placebo controlled Double blind adalimumab |
Hidradenitis Suppurativa Hidradenitis Sweat Gland Diseases Skin Diseases Skin Diseases, Bacterial Bacterial Infections Bacterial Infections and Mycoses |
Infections Skin Diseases, Infectious Suppuration Adalimumab Tumor Necrosis Factor Inhibitors Anti-Inflammatory Agents Antirheumatic Agents |