Vitamin D + Telaprevir + Peginterferon + Ribavirin for of Hepatitis C Genotype 1
A Pilot Trial of the Safety and Efficacy of Telaprevir +Peginterferon +Ribavirin +Vitamin D3 Among Treatment-naive Veterans Infected With Genotype 1 Hepatitis C Virus
This study is for people who have been diagnosed with chronic hepatitis C, specifically those who have a certain type of the virus, genotype 1, and who have not yet received treatment for hepatitis C. This pilot study is designed to test whether the addition of vitamin D, to the three drugs (Incivek (telaprevir), Pegasys (peginterferon alfa-2a), and ribavirin) that are approved by the Food and Drug Administration (FDA) for the treatment of hepatitis C, can help eliminate the HCV from the body. Currently, doctors are unsure if the addition of vitamin D to prescribed hepatitis C therapy will have any effects on how the body clears the virus.
Once enrolled, participants will be randomly assigned (like flipping a coin) to receive telaprevir + peginterferon alfa-2a + ribavirin + vitamin D3 (treatment group) or telaprevir + peginterferon alfa-2a + ribavirin (control group). A total of 80 participants, of all races/ethnicities, will be included in this study, at 5 to 10 VA hospital study sites (10 - 20 participants/site).
Participants assigned to the treatment group will begin a lead-in phase where they will receive 5,000 IU of vitamin D3 per day. Every two weeks during the lead-in phase, participants will be tested to determine the Vitamin D level in their blood, as well as other tests, including HCV RNA (to determine the amount of virus present) and calcium levels. Once an adequate level of Vitamin D is detected in participants' blood, participants will begin treatment with telaprevir + peginterferon alfa-2a + ribavirin + vitamin D3 (15,000 IU/week) for 12 weeks.
Participants randomized to the control group will immediately begin treatment with telaprevir + peginterferon alfa-2a + ribavirin for 12 weeks. At the end of Week 12 the participants' involvement in the study will be complete.
Adverse events and effects of vitamin D3 will be obtained by assessing participants' medical history, physical examination, and blood tests at clinic visits. HCV RNA will be assessed at Screening, Day 1, Week 2, 4, 8 and 12.
調査の概要
研究の種類
段階
- フェーズ2
- フェーズ 3
連絡先と場所
研究場所
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-
California
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Long Beach、California、アメリカ、90822
- VA Long Beach Healthcare System
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Minnesota
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Minneapolis、Minnesota、アメリカ、55417
- Minneapolis VAHCS
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Missouri
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Kansas City、Missouri、アメリカ、64128
- Kansas City VA Medical Center
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Pennsylvania
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Philadelphia、Pennsylvania、アメリカ、19104
- Philadelphia VA Medical Center
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-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Chronic Hepatitis C genotype 1 infection
- Treatment naïve
- Age >18 years
- Agree to genetic testing
Exclusion Criteria:
- Liver disease other than from hepatitis C
- HCV infection with mixed genotypes
- Decompensated liver disease
- AFP>100ng/ml.
- Known HIV infection
- Serum 25(OH)D less than 12ng/ml or greater than 30ng/ml
- Regular vitamin D supplement use
- Regular calcium supplement use
- Refusal to abstain from vitamin D supplementation
- Current or past history of kidney stones
- Current use of any of the prohibited medications listed in section 5.5 and the INCIVEK® package insert.
- Need for therapeutic vitamin D or calcium (e.g. treatment for osteoporosis, osteomalacia, hyperparathyroidism etc.), in the opinion of the investigator
- Significant substance abuse within the past 6 months,
- Suicidal attempt in the past 10 years or suicidal ideation in past 3 months, or any other psychiatric condition that the investigator deems would make a subject unsuited for treatment with peginterferon or ribavirin.
- Confirmed or suspected malignancy, or history of malignancy within the past 3 years (except treated basal cell carcinoma of the skin or in situ carcinoma of the uterine cervix)
- Any autoimmune disease not easily controlled (in the opinion of the investigator)
- Any condition resulting in malabsorption (
- Poorly controlled thyroid disorder, or diabetes mellitus (HbA1c > 9)
- Glomerular diseases (e.g., glomerulosclerosis or glomerulonephritis) associated with a serum creatinine >1.5 times the upper limit of normal
- Current or history of any clinically significant cardiac abnormalities/dysfunction (eg, angina, congestive heart failure, myocardial infarction, pulmonary hypertension, complex congenital heart disease, cardiomyopathy, significant arrhythmia) including current uncontrolled hypertension or history of use of antianginal agents for cardiac conditions (Inclusion will be considered if clearance by a cardiologist is obtained.)
- Receipt of an investigational drug within the past 30 days
- Females who have a positive pregnancy test at the time of screening, are breastfeeding or who anticipate pregnancy within the next 18 months, or men with pregnant partners
- Lack of agreement from subject to use two forms of acceptable contraception
- History or other evidence of any significant illness which, in the opinion of the investigator, would make the patient, unsuitable for the study
- Laboratory Exclusions
Hemoglobin: <12gm/dl male or female
Neutrophil: <1,200/mm3
Platelets: <90,000/mm3
INR: >1.5
Albumin: <3.2gm/dl
Total Bilirubin: >2.0mg/dl
HbA1c: >9.5%
Serum Creatinine: >1.5 times the upper limit of normal
Serum Calcium Within local laboratory normal range
Parathyroid hormone (PTH) <10 or >55 pg/mL
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ:VitD+telaprevir+peginterferon+ribavirin
Participants randomized to the treatment group will receive 5,000IU/day of vitamin D3 during the lead-in phase.
When the serum 25(OH)D level is ≥35ng/ml the participant will begin telaprevir + vitamin D3 (15,000IU/week) + peginterferon alfa-2a (180ug/week) + weight based ribavirin treatment.
|
他の名前:
他の名前:
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アクティブコンパレータ:Telaprevir + Peginterferon + Ribavirin
Participants randomized to the control group immediately begin treatment with telaprevir + 180ug of peginterferon alfa-2a (Pegasys) per week and either weight based ribavirin.
|
他の名前:
他の名前:
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
HCV RNA
時間枠:4 weeks
|
Hepatitis C virus Ribonucleic Acid identifies the presence of Hepatitis C in the blood
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4 weeks
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
adverse event profile
時間枠:12 weeks
|
Cumulative record of unanticipated or unintended medical occurrences, not necessarily related to the study treatment.
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12 weeks
|
協力者と研究者
スポンサー
捜査官
- 主任研究者:Timothy R Morgan, MD、Veterans Affairs Long Beach Healthcare
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- 1217
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
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