Beyond hormonal therapies in menopause.
J L Shaver
https://pubmed.ncbi.nlm.nih.gov/7925765/Actively Recruiting
Led by Tioga Pharmaceuticals · Updated on 2025-09-09
120
Participants Needed
1
Research Sites
7 weeks
Total Duration
This research evaluates the safety and effectiveness of asimadoline TP0052, a peripherally restricted selective kappa agonist, for treating moderate to severe menopausal vasomotor symptoms VMS in midlife women. It is a Phase 2a randomized, double-blind, placebo-controlled clinical trial focusing on women aged 40 to 62 who experience significant menopausal symptoms. The study aims to better understand how asimadoline affects these symptoms compared to placebo. Participants are randomly assigned to receive either asimadoline TP0052 or a placebo for 8 weeks. The asimadoline group takes 2.5 mg tablets twice daily, totaling 10 mg daily two tablets on awakening and two before bed. Following the double-blind period, all participants receive asimadoline openly for an additional 4 weeks at the same dosage. This design allows researchers to compare effects during blinded treatment and observe safety and symptom changes during open-label administration. During the study, participants will record their vasomotor symptoms daily for 2 weeks before starting treatment. Researchers will monitor safety through adverse events, lab tests, and vital signs over the 8 weeks of blinded treatment. They will also assess changes in frequency and severity of symptoms. After treatment, a safety follow-up call is conducted. Overall participation includes screening, 8 weeks of blinded treatment, 4 weeks of open-label treatment, and safety monitoring.
CONDITIONS
Safety and Efficacy of Asimadoline (TP0052) in Patients With Vasomotor Symptoms (VMS).
S
Standish Fleming, CEO, MBA
G
Garet Heintz, Regulatory Consultant and Agent, RAC
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Tioga Pharmaceuticals
Lead Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Asimadoline (investigational) | Placebo | Non-hormonal Medication (SSRI/SNRI, external guideline-recommended) |
|---|---|---|---|
| What is it? | An investigational oral medication (kappa opioid receptor agonist) being tested for reduction in moderate-to-severe vasomotor symptoms in menopausal or late perimenopausal women. | A placebo (inactive tablet), matching the investigational drug in appearance and schedule, used to compare effects in the same patient population. | Non-hormonal oral medications, including selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs), are guideline-recommended for managing moderate-to-severe vasomotor symptoms in women who are unable or do not wish to use hormone therapy. |
| Role in the study | Investigational active treatment arm, assessed for safety and reduction in frequency and severity of vasomotor symptoms. | Control comparator within the trial, used to assess the effects of Asimadoline relative to no active medication. | Not included in this trial’s randomization but guideline-recommended as a standard non-hormonal therapy for VMS. |
| Primary use | Proposed to reduce the number and intensity of moderate-to-severe vasomotor symptoms like hot flashes and night sweats. | Serves as an inactive control for directly assessing the efficacy and safety of Asimadoline. | Used to decrease the frequency and severity of vasomotor symptoms in menopausal women, particularly for those who are not candidates for hormone replacement therapy. |
| How is it given or performed? | Oral tablets: two tablets on awakening and two before bed (total 10 mg daily), for 8 weeks. | Oral placebo tablets, taken on the same schedule as the active treatment for 8 weeks. | Low-dose SSRIs (e.g., paroxetine, citalopram, escitalopram) once daily; or low-dose SNRIs (e.g., venlafaxine), typically taken orally once daily for ongoing management. |
| Evidence status | Efficacy and safety are under investigation; no published results for VMS are available from this trial as of now. | Placebo groups consistently used in randomized trials to judge active agent effects; no therapeutic efficacy expected. | Randomized controlled trials have demonstrated that low-dose SSRIs and SNRIs reduce hot flash frequency by about 50% compared to placebo in women with moderate-to-severe symptoms. |
| Important limitations | Long-term safety and real-world effectiveness for VMS remain unknown; results from this trial are pending. | Placebo offers no active management for VMS and cannot reduce symptoms beyond the expected placebo effect. | SSRIs and SNRIs can cause side effects such as gastrointestinal upset, sleep disturbance, or sexual dysfunction, and are not suitable for all women (e.g., those with certain psychiatric or medication contraindications). Effects on VMS may be modest, and not all women experience substantial relief. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 8 weeks
Participants receive Asimadoline or placebo tablets twice daily for 8 weeks to treat moderate to severe menopausal vasomotor symptoms.
Weekly visits for up to 8 weeks
Duration - 4 weeks
After initial treatment, participants in the Asimadoline group receive an additional 4 weeks of open-label Asimadoline treatment.
Weekly visits for 4 weeks
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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https://pubmed.ncbi.nlm.nih.gov/32068688/Tioga Pharmaceuticals
Lead Sponsor