此页面是自动翻译的，不保证翻译的准确性。请参阅 英文版 对于源文本。

第三阶段，随机，双盲，安慰剂对照的，多中心研究的新型抗大麻孕激素 +低剂量雌激素，用于中度痤疮。 (PANDORA)

2026年10月23日 更新者：Eurofarma Laboratorios S.A.

第三阶段优越性，随机，双盲，安慰剂对照，自适应，多中心研究，以比较一种新浓度的抗雄激素的疗效和安全性，结合了降低剂量雌激素，以治疗中度痤疮。

This Phase III randomized, double-blind, placebo-controlled, adaptive, multicenter study evaluates the efficacy and safety of a new concentration of the fixed-dose combination EF190 in women with moderate acne vulgaris over six 28-day treatment cycles. Eligible participants will be randomized (2:1) to receive either the experimental drug or placebo alongside standard skincare. The study includes five in-person visits (screening, randomization, and three follow-ups) and three phone contacts (cycles 2, 4, and 5) to monitor adherence, adverse events, and contraceptive use. A subgroup will undergo additional exploratory assessments, including acne questionnaires, ovarian activity tests, photographic documentation, and specialized lab/ultrasound exams.

研究概览

地位

招聘中

条件

干预/治疗

详细说明

This is a Phase III, randomized, double-blind, placebo-controlled, adaptive, multicenter superiority study to evaluate the efficacy and safety of a new concentration of the fixed-dose combination EF190 in women with moderate acne vulgaris after six treatment cycles. Eligible participants will be randomized into a controlled, double-blind treatment period, receiving either the experimental drug or placebo, along with standard skin care, for six 28-day cycles.

Throughout the study, each participant must attend at least five (05) in-person clinic visits at the research center. At the screening visit (VS/V1), the participant will sign the Informed Consent Form (ICF) and the Assent Form (AF), undergo eligibility assessment, and have blood drawn. At the randomization visit (VR/V2), eligibility will be confirmed, baseline acne data (lesions and score) will be recorded, randomization (2:1 for treatment/placebo) will occur, and the study medication will be dispensed. The first dose (Day 1) will be administered on the 28th day post-menstruation. Subsequent visits (V3-V5/VF) will take place on day 15 (±3) of each cycle. The final visit (V5/VF) will assess the study's primary endpoint.

In addition to in-person visits, participants will have three (3) phone contacts, scheduled between clinic visits during cycles 2, 4, and 5. These calls aim to reinforce treatment adherence, collect information on adverse events and concomitant medications, assess discontinuation criteria, and remind participants about the use of study-permitted contraceptive methods.

Furthermore, a subgroup of participants will be selected for exploratory evaluations. These participants will complete acne control questionnaires, undergo ovarian activity assessments, have photographic documentation for acne evaluation, and receive specified laboratory and ultrasound tests as per the protocol and ICF/AF.

研究类型

介入性

注册 (估计的)

531

阶段

  • 第三阶段

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

研究联系人备份

学习地点

  • 巴西
    • Estado de Bahia
      • Salvador、Estado de Bahia、巴西、41.820-020
        • 招聘中
        • Clinica Ibis Salvador
        • 接触：
          • 电话号码：+55 71 99628-2914
    • Federal District
      • Brasília、Federal District、巴西、70335-902
        • 招聘中
        • Instituto de Gestão Estratégica de Saúde do Distrito Federal-IGESDF
        • 接触：
          • 电话号码：+55 61 98311-2895
    • Goiás
      • Goiânia、Goiás、巴西、74.935-530
        • 招聘中
        • ICF Ciências Farmacêutica - Unidade Clínica
        • 接触：
          • 电话号码：+55 62 99963-6770
      • Goiânia、Goiás、巴西、74453-200
        • 招聘中
        • Centro de Pesquisa Clínica - Hospital Ruy Azeredo
        • 接触：
          • 电话号码：+55 11 98764-3924
    • Pará
      • Belém、Pará、巴西、66093-681
        • 招聘中
        • Norte Pesquisa Clínica
        • 接触：
          • 电话号码：+55 91 98251-0454
    • Rio Grande do Norte
      • Natal、Rio Grande do Norte、巴西、59062-000
        • 招聘中
        • Liga Norte Riograndense Contra o Câncer
        • 接触：
          • 电话号码：+55 84 98106-4634
    • Rio Grande do Sul
      • Passo Fundo、Rio Grande do Sul、巴西、99010260
        • 招聘中
        • Hospital de Clínicas de Passo Fundo
        • 接触：
          • 电话号码：+55 54 99985-7152
      • Porto Alegre、Rio Grande do Sul、巴西、90880-481
        • 招聘中
        • Centro de Pesquisa Clínica Mãe de Deus/AESC
        • 接触：
          • 电话号码：+55 51 99835-7151
    • Rio de Janeiro
      • Rio de Janeiro、Rio de Janeiro、巴西、20070-003
        • 招聘中
        • Genthe Pesquisa Clínica
        • 接触：
          • 电话号码：+55 21 96724-4165
      • Rio de Janeiro、Rio de Janeiro、巴西、20070-900
        • 招聘中
        • Artha Pesquisas Clínicas
        • 接触：
          • 电话号码：+55 21 97885-3190
    • São Paulo
      • Bragança Paulista、São Paulo、巴西、12.916-542
        • 招聘中
        • Hospital Universitário São Francisco na Providência de Deus - HUSF
        • 接触：
          • 电话号码：+55 11 2490-1130
      • Campinas、São Paulo、巴西、12916-900
        • 招聘中
        • CLINICA GERAL INVESTIGA LTDA (Allergisa)
        • 接触：
          • 电话号码：+55 19 99778-0204
      • Campinas、São Paulo、巴西、13086-045
        • 招聘中
        • Synvia
        • 接触：
          • 电话号码：+55 19 99933-1385
      • Itapevi、São Paulo、巴西、06696-000
      • São José dos Campos、São Paulo、巴西、12230-001
        • 招聘中
        • CIPES
        • 接触：
          • 电话号码：+55 12 99726-2171
      • São Paulo、São Paulo、巴西、01139-000
        • 招聘中
        • Synvia
        • 接触：
          • 电话号码：+55 11 99933-6183
      • Valinhos、São Paulo、巴西、13270-180
        • 招聘中
        • Kosmoscience
        • 接触：
          • 电话号码：+55 19 4062-8689
      • Valinhos、São Paulo、巴西、13271-130
        • 招聘中
        • Azidus
        • 接触：
          • 电话号码：+55 19 99795-4961

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

14年 至 45年 (孩子、成人)

接受健康志愿者

不

有资格学习的性别

女性

描述

Inclusion Criteria:

  1. Ability to confirm voluntary participation and agree to all trial procedures by signing the Informed Consent Form (ICF) and Informed Assent Form (ITA), if applicable, prior to any procedure provided for in the protocol. Note: The adult participant or the participant's guardian when the participant is a legal minor (adolescent) must sign the ICF after understanding and agreeing to all trial procedures. The adolescent participant must provide assent by signing the ITA based on local regulations and/or guidelines prior to the start of any study procedures.
  2. Female sex.
  3. Age between 14 and 45 years (inclusive).
  4. At least one year after menarche.
  5. At least one menstrual period during the last 03 months.
  6. Absence of known contraindications for the use of combined oral contraceptives. 7. Diagnosis of moderate acne vulgaris on the face for at least six months, characterized by the presence of:

Note: Information regarding the duration of the disease can be obtained from the clinical history reported by the participant or from a brief medical report of the participant's history, if she is referred from another service.

  1. At least 15 inflammatory lesions (papules or pustules);

  2. At least 10 non-inflammatory lesions (comedones); and

  3. Up to 03 small inactive nodules. Note: Nodules are lesions between 10 and 30 mm, more palpable than visible.

    8. Classification ≥ 3 on the 6-point scale of the Investigator's Static Global Assessment (ISGA).

    9. When the participant did not obtain adequate results with topical treatment, failure or impossibility of systemic treatment with antibiotics (contraindications or intolerance) and the patient has an indication for the use of antiandrogens and/or isotretinoin.

    10. Agreement not to use other topical and/or systemic treatments for acne during the study.

Exclusion Criteria:

1. Confirmed or suspected pregnancy. 2. History of childbirth, abortion or lactation in the last 3 months. 3. Participants who do not agree to use non-hormonal contraceptive methods permitted during the study, unless they are surgically sterile or who expressly declare themselves to be free from risk of pregnancy because they do not engage in sexual practices or engage in them in a non-reproductive manner.

4. Current or previous treatment with agents described below with a washout period shorter than that provided for each:

  1. At least 6 months for systemic isotretinoin and/or injectable contraceptive (such as Depo Provera);

  2. At least 3 months for implantable contraceptives (such as Implanon) or Levonorgestrel-Releasing Intrauterine System (such as Mirena and Kyleena);

  3. At least 2 months for oral contraceptives or other systemic anti-acne agents not mentioned (such as systemic antibiotics);

  4. At least 4 weeks for topical retinoids;

  5. At least 2 weeks for other topical anti-acne agents (such as topical antibiotics or benzoyl peroxide); 5. Personal history or first-degree family history of vascular disease including previous arterial thromboembolic disease (myocardial infarction or stroke), venous thromboembolic disease (peripheral venous thrombosis or pulmonary embolism) or any condition that increases the risk for any of the previous conditions.

    6. Known personal history of thrombophilia. 7. Current smoking. 8. Any disease or condition that compromises the function of body systems that would result in altered absorption, excessive accumulation, impaired metabolism or altered excretion of the study medication, including malabsorptive conditions (such as previous bariatric surgery).

    9. Any condition that worsens under hormonal treatment or that interferes with the conduct of the study or interpretation of the results, such as gestational herpes or idiopathic jaundice during previous pregnancy, otosclerosis, Sydeham's chorea, porphyria, bile flow disorders (presence or history of cholestasis, gallstones, systemic lupus erythematosus).

    10. Other comorbidities (history or current diagnosis) such as chronic inflammatory bowel disease (Crohn's disease or ulcerative colitis), hemolytic uremic syndrome, headache with focal neurological symptoms, epilepsy, asthma with chronic use of oral corticosteroids, multiple sclerosis, Chorea minor, tetany, endometriosis, mastopathy, current premenstrual dysphoric disorder, sickle cell anemia, pancreatitis, vascular complications of diabetes, major depressive disorder or other conditions that, in the investigator's assessment, may compromise the participant's safety.

    11. Hypersensitivity to any of the components of the experimental drug or placebo.

    12. Presence of moderate to severe atopy, acne comedonica or acne conglobata, induced acne or acne with multiple large nodules, cysts, fistular comedones or fistular duct abscess or other dermatological conditions that, in the investigator's assessment, may compromise the evaluation of efficacy.

    13. Use of comedogenic creams or sunscreens, other preparations with sex hormones or any other anti-acne therapy (such as phototherapy, oleic acids, chemical peeling, mechanical extraction of comedones).

    14. Preparations with acnegenic effects, such as iodinated or brominated drugs, tuberculostatics, lithium, vitamins B1 (> 1.5 mg/day), B6 (> 2 mg/day) or B12 (> 6 g/day), corticosteroids, adrenocorticotropic hormone (ACHT), anabolic steroids, quinine, disulfiram, methoxypsoralen, phenobarbital, phenytoin, trimethadione, thyroid depressants, certain oily cosmetics.

    15. History of drug abuse. 16. History of neoplasia in the last 5 years, except non-melanoma skin cancer, or any history of sex hormone-dependent neoplasia or current suspicion of neoplasia, including meningioma.

    17. Use of other medications that interfere with hepatic metabolism via cytochrome P450, such as carbamazepine, phenytoin, primidone, oxcarbazepine, topiramate, rifampicin, ritonavir and products containing St. John's wort.

    18. Use of direct-acting antiviral medications containing ombitasvir, paritaprevir or dasabuvir and combinations of these medications.

    19. Undiagnosed vaginal bleeding. 20. Change in clinical breast examination or other clinically significant finding on gynecological examination that could, in the opinion of the investigator, be worsened by oral contraceptives. 21. Absence of proof of a Pap smear (oncotic cytology) without changes suspicious of malignancy in the last 12 months. Note: If the participant does not have a previous exam within the accepted interval and agrees, the exam may be performed at the Selection Visit (VS/V1).

    22. Absence of proof of a bilateral mammogram without changes suspicious of malignancy in the last 12 months, only for participants aged ≥ 40 years. Note: Mammograms with suspicious of malignancy are considered 23. Obesity (BMI > 30 kg/m²). 24. Uncontrolled arterial hypertension (Systolic Blood Pressure [SBP] ≥140 mmHg or Diastolic Blood Pressure [DBP] ≥ 90 mmHg).

    25. Participant who has participated in clinical trial protocols in the last 12 (twelve) months, unless the investigator believes that there may be direct benefit to the participant.

    26. Participant who, in the opinion of the investigator, presents other clinical or laboratory conditions or alterations that make him/her unfit to participate in the study

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：治疗
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：四人间

武器和干预

参与者组/臂
干预/治疗
安慰剂比较：安慰剂组
药品：Placebo

Placebo film-coated tablets administered in a 24+4 regimen. Each treatment pack contains one 28-tablet calendar blister composed of 24 placebo tablets and 4 inactive placebo tablets. Participants will receive treatment for 6 consecutive 28-day cycles during the double-blind treatment period.
实验性的：N0999
药品：Experimental drug (Cyproterone Acetate 2 mg and Ethinyl Estradiol 0.02 mg)

Cyproterone acetate 2 mg and ethinyl estradiol 0.02 mg film-coated tablets administered in a 24+4 regimen. Each treatment pack contains one 28-tablet calendar blister composed of 24 active tablets and 4 inactive tablets. Participants will receive treatment for 6 consecutive 28-day cycles during the double-blind treatment period.

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Absolute reduction from baseline in the number of inflammatory acne lesions assessed at Cycle 6.
大体时间：24 weeks

Inflammatory lesion refears to open and closed comedones, papules, pustules, and nodules
24 weeks
Absolute reduction from baseline in the total number of acne lesions assessed at Cycle 6.
大体时间：24 weeks

Acne lesions refears to open comedones, closed comedones, papules, pustules, and nodules.
24 weeks
Change from Baseline of participants with scores 0 or 1 in the Static Investigator Global Assessment (ISGA) at cycle 6.
大体时间：24 weeks

0 corresponds to "normal, clear skin with no evidence of acne vulgaris.";

1 corresponds to "skin is almost clear: few non-inflammatory lesions present, with rare non-inflamed papules (papules must be resolving and may be hyperpigmented, though not pink-red). No nodular lesions are present."; 5 indicates "numerous highly inflammatory lesions predominate, with a variable number of comedones, many papules and pustules, or nodular lesions."
24 weeks

次要结果测量

结果测量
措施说明
大体时间
Change from Baseline in the inflammatory lesion count at cycle 3.
大体时间：14 weeks

Inflammatory lesion refears to open and closed comedones, papules, pustules, and nodules
14 weeks
Change from Baseline in the percentage of participants with scores 0 or 1 in the Static Investigator Global Assessment (ISGA) at cycle 3.
大体时间：14 weeks

0 corresponds to "normal, clear skin with no evidence of acne vulgaris.";

1 corresponds to "skin is almost clear: few non-inflammatory lesions present, with rare non-inflamed papules (papules must be resolving and may be hyperpigmented, though not pink-red). No nodular lesions are present."; 5 indicates "numerous highly inflammatory lesions predominate, with a variable number of comedones, many papules and pustules, or nodular lesions."
14 weeks
Absolute change from Baseline in the Acne-Specific Quality of Life Questionnaire (Acne-QoL) at cycle 3 and cycle 6.
大体时间：14 and 28 weeks

The questionnaire has four (4) domains: Self perception (score range, 0 - 30), Role-Social (0 - 24), Role-emotional (0 - 30), and Acne Symptons (0 - 30). Overall, tem sum for all domains scores range from 0 to 114.

Each domain scores responses are numbered starting with '0' in ascending order (ie. extremely=0, very much=1, quite a bit=2, a good bit=3, somewhat=4, a little bit=5, not at all=6). Higher scores for each domain in Acne-Specific Quality of Life Questionnaire (Acne-QoL) reflect increased health related quality of life, ie. less negative self perception, social, emotional and symptomatic effects associated with acne.
14 and 28 weeks

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Eurofarma Laboratorios S.A.

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年8月24日

初级完成 (估计的)

2027年2月1日

研究完成 (估计的)

2027年3月1日

研究注册日期

首次提交

2025年3月25日

首先提交符合 QC 标准的

2025年3月31日

首次发布 (实际的)

2025年4月1日

研究记录更新

最后更新发布 (实际的)

2026年10月27日

上次提交的符合 QC 标准的更新

2026年10月23日

最后验证

2026年10月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • EF190

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

订阅