| Benowitz, Neal L |
NCT05962229: Comparative Pharmacokinetics and Pharmacodynamics of Synthetic Nicotine |
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| Not yet recruiting | 1 | 18 | US | (S)-Nicotine, (R)- nicotine, Racemic nicotine, 50:50 mixture of (S)- and (R)-nicotine | University of California, San Francisco, National Institute on Drug Abuse (NIDA) | Nicotine Dependence, Nicotine Vaping | 09/25 | 09/25 | | |
| Withdrawn | N/A | 36 | US | Low Nicotine E-Liquid, Medium or High Nicotine E-Liquid | University of California, San Francisco, National Institute on Drug Abuse (NIDA) | Cardiovascular Risk Factor, Nicotine Dependence | 12/23 | 12/23 | | |
SREC22, NCT05658471: Pharmacokinetics and Pharmacodynamics of Nicotine With Use of Standardized Research Electronic Cigarette (SREC) |
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| Recruiting | N/A | 20 | US | Standardized Research E-Cigarette (SREC), Over the Counter E-Cigarette (EC), Usual Brand E-Cigarette (EC), Biological Samples, Biological Specimens, Smoking-related Questionnaires, Behavioral Questionnaires | University of California, San Francisco, National Institute on Drug Abuse (NIDA) | Nicotine Dependence, Tobacco Toxicity, Cardiovascular Risk Factors | 01/25 | 01/25 | | |
| Ko, Jennifer KY |
NCT04547530: Effect of Vitamin D Supplementation in Live Birth Rate of in Vitro Fertilization Outcome |
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| Recruiting | 4 | 1150 | RoW | Vitamin D, Placebo | The University of Hong Kong, Kwong Wah Hospital | Infertility | 12/23 | 12/24 | | |
NCT04721899: Vitamin D and Endometrial Receptivity in Infertile Women |
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| Recruiting | N/A | 105 | RoW | Vitamin D | The University of Hong Kong | Infertility | 02/25 | 08/26 | | |
NCT06587477: Testicular Function and Semen Quality in Male Childhood and Adolescent Cancer Survivors |
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| Recruiting | N/A | 200 | RoW | Hormonal profile, Semen analysis, Questionnaire | The University of Hong Kong, Queen Mary Hospital, Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, Hong Kong Children's Hospital | Cancer, Treatment-Related, Late Effect, Semen Analysis | 12/27 | 06/28 | | |
NCT04650880: Effect of Vitamin D on Ovulation Rate in Women With Polycystic Ovary Syndrome |
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| Recruiting | N/A | 220 | RoW | Vitamin D, Placebo | The University of Hong Kong, Kwong Wah Hospital, Princess Margaret Hospital, Hong Kong, Pamela Youde Nethersole Eastern Hospital, The Queen Elizabeth Hospital | Polycystic Ovary Syndrome, Anovulation | 12/24 | 12/26 | | |
NCT06733727: Letrozole Versus Mifepristone and Misoprostol in Silent Miscarriage |
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| Not yet recruiting | N/A | 884 | NA | Letrozole, Mifepristone, Mifepristone, RU486 | The University of Hong Kong, Queen Mary Hospital, Hong Kong, Pamela Youde Nethersole Eastern Hospital, Kwong Wah Hospital, Princess Margaret Hospital, Canada | Silent Miscarriage | 12/27 | 06/28 | | |
NCT05487092: Letrozole in Preventing Recurrence of Endometrioma Following Laparoscopic Ovarian Cystectomy |
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| Recruiting | N/A | 194 | RoW | Letrozole, Placebo | The University of Hong Kong, Pamela Youde Nethersole Eastern Hospital, The Queen Elizabeth Hospital, Kwong Wah Hospital, Princess Margaret Hospital, Canada | Endometriotic Cyst of Ovary | 12/26 | 06/27 | | |
| Helen, Gideon St |
| Not yet recruiting | 2 | 48 | US | Cannabis, Marijuana, Nicotine, Nicotine product, Pax Loose Leaf Vaporizer, Electronic vaporizor, Placebo Marijuana, Placebo for Marijuana | University of California, San Francisco, National Institute on Drug Abuse (NIDA), National Institutes of Health (NIH), Food and Drug Administration (FDA) | THC, Cannabis, Cannabis Use, Cannabis Smoking, Tobacco Use, Vaping | 12/27 | 12/27 | | |
| Completed | N/A | 14 | US | Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette | University of California, San Francisco, Tobacco Related Disease Research Program | THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor | 06/24 | 06/24 | | |
| Completed | N/A | 14 | US | Electronic Cigarette | University of California, San Francisco, National Institutes of Health (NIH), Food and Drug Administration (FDA), National Cancer Institute (NCI), National Heart, Lung, and Blood Institute (NHLBI) | Cardiovascular Risk Factor, Nicotine Dependence | 07/24 | 07/24 | | |
| Lawrence, Lisa |
| Not yet recruiting | 2 | 48 | US | Cannabis, Marijuana, Nicotine, Nicotine product, Pax Loose Leaf Vaporizer, Electronic vaporizor, Placebo Marijuana, Placebo for Marijuana | University of California, San Francisco, National Institute on Drug Abuse (NIDA), National Institutes of Health (NIH), Food and Drug Administration (FDA) | THC, Cannabis, Cannabis Use, Cannabis Smoking, Tobacco Use, Vaping | 12/27 | 12/27 | | |
NCT05962229: Comparative Pharmacokinetics and Pharmacodynamics of Synthetic Nicotine |
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| Not yet recruiting | 1 | 18 | US | (S)-Nicotine, (R)- nicotine, Racemic nicotine, 50:50 mixture of (S)- and (R)-nicotine | University of California, San Francisco, National Institute on Drug Abuse (NIDA) | Nicotine Dependence, Nicotine Vaping | 09/25 | 09/25 | | |
| Completed | N/A | 14 | US | Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette | University of California, San Francisco, Tobacco Related Disease Research Program | THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor | 06/24 | 06/24 | | |
| Withdrawn | N/A | 36 | US | Low Nicotine E-Liquid, Medium or High Nicotine E-Liquid | University of California, San Francisco, National Institute on Drug Abuse (NIDA) | Cardiovascular Risk Factor, Nicotine Dependence | 12/23 | 12/23 | | |
| Completed | N/A | 14 | US | Electronic Cigarette | University of California, San Francisco, National Institutes of Health (NIH), Food and Drug Administration (FDA), National Cancer Institute (NCI), National Heart, Lung, and Blood Institute (NHLBI) | Cardiovascular Risk Factor, Nicotine Dependence | 07/24 | 07/24 | | |
SREC22, NCT05658471: Pharmacokinetics and Pharmacodynamics of Nicotine With Use of Standardized Research Electronic Cigarette (SREC) |
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| Recruiting | N/A | 20 | US | Standardized Research E-Cigarette (SREC), Over the Counter E-Cigarette (EC), Usual Brand E-Cigarette (EC), Biological Samples, Biological Specimens, Smoking-related Questionnaires, Behavioral Questionnaires | University of California, San Francisco, National Institute on Drug Abuse (NIDA) | Nicotine Dependence, Tobacco Toxicity, Cardiovascular Risk Factors | 01/25 | 01/25 | | |
