这个消息对于我们的典型论坛成员来说特别有趣,因为这是两种仿制药的组合,现在很容易买到,而且价格便宜。因此,人们可以自己尝试并报告结果。请参阅本文讨论主题中的详细信息。

Rejuvenate Biomed 的临床试验证明了 RJx-01 在肌肉减少症方面的治疗潜力

尖端疗法显示出对肌肉力量、功能和抗疲劳能力的有意义的改善,为数百万人患有肌肉减少症的人带来了希望

比利时迪彭贝克,2024 年 2 月 21 日– Rejuvenate Biomed NV(“Rejuvenate Biomed”)是一家致力于通过创新疗法增强终身健康的开创性临床阶段平台和管道公司,今天宣布其 1b 期铅试验的突破性功能结果结果用于治疗肌肉减少症的候选 RJx-01。

肌少症是一种影响高达 22% 的 65 岁老人和 50% 的 80 岁老人的疾病,其特点是肌肉力量和身体机能逐渐丧失。这种下降不仅影响生活质量,还增加跌倒、残疾和死亡的风险,尤其是老年人口。

RJx-01是一种专有的组合药物[由二甲双胍加兰他敏组成],经公司内部药物发现平台鉴定,并已证明对各种肌少症临床前模型具有有益作用[1]。最近的探索性临床试验结果是在早期确认安全性、耐受性和药代动力学之后得出的[2],突显了 RJx-01 在解决有效肌肉减少症治疗未得到满足的需求方面的潜力。

对 42 名年龄在 65 岁至 75 岁之间的健康志愿者进行的首次测试产生了“奇妙”的结果。参与者的一条腿接受了为期两周的石膏固定。由于固定,他们失去了肌肉力量。然后每个人都接受了培训计划。在接受球体形式药物的参与者中,股四头肌和腿筋的恢复速度明显更快。其他参与者接受了安慰剂。在肌肉疲劳(长时间努力后)和肌肉反应性(作为稳定性指标)方面,统计上的得分也显着提高。

这是 Rejuvenate Biomed 的首场胜利。 ”对患者的研究仍在继续。这是理所当然的。如果我们的治疗能够稳定病情,那就相当多了。这样可以进行早期干预。但我们当然希望有所改进”, Rejuvenate 首席执行官兼创始人 Ann Beliën说道。

肌肉减少症对老年人的生活质量产生不利影响。 ’我和父亲一起看到了。首先是拄着拐杖行走,然后是助行器,最后是轮椅。肌肉减少意味着不再能够打开瓶盖、步行距离减少、难以购买杂货、探望孙子。就是关于那些事情。我们不是要让老年人跑马拉松,而是让他们回归正常的社会生活,让他们随着年龄的增长而活动。 '

RJx-01 1b 期试验的主要结果揭示了有希望的功能结果:

  1. 改善力量:与安慰剂组相比,接受 RJx-01 治疗的废用性肌少症参与者在肌肉力量恢复方面表现出有希望的改善。通过等长测力法评估的这种有益效果强调了 RJx-01 促进肌肉力量改善的能力,这一结果将支持肌肉减少症患者的日常活动。
  2. 改善肌肉功能:通过等速测力法评估,RJx-01 治疗显着改善了腿部加速度。肢体快速加速的能力对于日常活动中的功能性运动非常重要,并且对于减轻跌倒风险至关重要——这是肌少症患者的一个重要考虑因素。
  3. 提高抗疲劳能力:通过监测一系列腿部锻炼期间的肌肉参数来评估神经肌肉疲劳。接受 RJx-01 的参与者表现出疲劳倾向降低,这表明 RJx-01 可以促进步行等体力活动,这对肌少症患者来说很重要的表现改善。

Rejuvenate Biomed 创始人兼首席执行官 Ann Beliën 博士表达了她的热情,她表示: “今天是我们解决与年龄相关疾病的关键时刻,尤其是肌肉减少症——这种疾病影响着多达五分之一的老年患者。 65 年。 RJx-01 所表现出的影响具有巨大的潜力,可以为因其他潜在因素而导致肌少症或肌肉力量丧失的个体带来重大改变。我们热切期待在今年晚些时候推进我们的 2 期项目,旨在证实 RJx-01 在解决肌肉减少症和骨质疏松症方面的治疗潜力。”

Rejuvenate Biomed 临床顾问委员会主席 Jean-Yves Reginster 教授博士补充道: “这些令人信服的数据证实了 RJx-01 改善身体表现和肌肉力量的承诺。随着人口老龄化,患有长期健康问题的人数不可避免地会增加,从而对人的功能能力和整体身体表现提出挑战。因此,像 Rejuvenate Biomed 这样的公司致力于治疗甚至预防肌肉减少症等与年龄相关的疾病的发展这一目标至关重要。”

Rejuvenate Biomed 临床顾问委员会成员 Roger Fielding 教授博士回应了他的强烈支持:患有肌肉相关疾病的人数正在增加,强调迫切需要可行的解决方案来改善与年龄相关的肌肉衰退表现。 Rejuvenate Biomed 今天公布的有关 RJx-01 的新数据对于肌少症患者以及因其他原因导致肌肉功能丧失的患者来说非常有希望。”

Rejuvenate Biomed 将开始一项 2 期研究,评估 RJx-01 对肌肉减少症和骨质疏松症的影响,因为这两种疾病经常共存,以至于“骨肌肉减少症”最近在医学文献中被描述为一种独特的综合征。此外,该公司正在积极探索合作机会,以研究 RJx-01 与 GLP-1 药物的组合,这些药物已上市用于治疗肥胖和 2 型糖尿病。

1b 期试验的积极结果验证了 Rejuvenate Biomed 专有药物发现平台 CombinAgeTM 和 CelegAgeTM 的预测能力,该平台可有效筛选小分子,以确定针对年龄相关途径的有前景的治疗方法。 Rejuvenate Biomed 打算通过战略合作伙伴关系或许可协议向第三方提供这些平台。

  1. 特兹 C 等人。 JCI 洞察2023; 8(15):e168787。 https://doi.org/10.1172/jci.insight.168787
  2. Rejuvenate Biomed - 肌少症 1b 期试验取得积极结果

相关

(加兰他敏 + 二甲双胍)概述

联合药物二甲双胍和加兰他敏 (RJx-01) 正在开发中,用于治疗肌肉减少症、废用性肌肉萎缩和未明确的适应症。该候选药物是一种小分子组合产品。它通过口服途径给药。它是基于人工智能驱动的技术平台开发的。

资料来源:https: //www.pharmaceutical-technology.com/data-insights/galantamine-metformin-rejuvenate-biomed-sarcopenia-likelihood-of-approval/

二甲双胍和加兰他敏的组合在治疗肌肉减少症方面表现出协同效益

继续本文的讨论主题

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Does anyone here supplement with galantamine?

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I’m not.

But, I find it fascinating that Metformin has issues with blocking muscle growth/regeneration by itself, but seems to be a net positive when combined with galantamine.

Galantamine is cheap and available from the usual suppliers. Cost seems to be around 200 to 250 rupees, or about $2.50 to $3.00 per stripe of 10 tablets, so around $0.25 to $0.30 per tablet (4mg tablet), so around $0.07 per mg. This compares to USA prices (using GoodRX.com) of around $0.10 to $0.14 per mg. But the benefit with the India purchase is of course you can avoid the hassle of trying to find a doctor that will support your experiment.

India Pricing:

Source: Galantamine at Best Price in India

USA Pricing:

Source: https://www.goodrx.com/galantamine-er?form=capsule&dosage=16mg&defaultQuantity=90&manufacturer=GENERIC

I’m not sure if the galantamine ER (extended release) is available in India.

6 Likes

Yes, occasionally. I had no idea that it had any sarcopenia benefits.
It is used by many for lucid dreaming. I use it occasionally for its nootropic effects. It will colorize your dreams and make them more vivid if you take it right before you go to bed.

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This is the one I am currently using. I am surprised that it’s not much cheaper from India when you add in the usual shipping cost.

Read the reviews and you will see why most people are taking this.

https://www.amazon.com/s?k=Relentless+Improvement+Galantamine&crid=2N1WF0DKTTXAF&sprefix=relentless+improvement+galantamine%2Caps%2C393&ref=nb_sb_noss_1

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Also available as a registered drug to treat mild to moderate dementia in Alzheimer’s disease;

https://www.mayoclinic.org/drugs-supplements/galantamine-oral-route/description/drg-20067458

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This is fascinating. And I’m surprised at how many processes it seems to improve. Lysosomal function is a particularly difficult area to treat. I wonder if this will have an effects on aging beyond sarcopenia.

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I like the “lift heavy things” approach to avoiding sarcopenia but I wonder how much this drug would improve my lifts. =)

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I agree. I definitely prefer the traditional approach.

Any idea on Dosages needed to help with sarcopenia?

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Good question… I’ve done some searching and found info for the earlier mouse trial they did. Perhaps someone can find the human dosing data. In the animal study below, they use 125X more metformin than glantomine. So, if we start with a typical dosing of metformin (say the 1500mg SR metformin used in the TAME trial, that would suggest a daily dose of galantamine of 12mg/day.

Here is what I found in the article below (interestingly, they are injecting it in the mouse study):

Accordingly, the investigators examined whether RJx-01 could mitigate inflammation and denervation while preserving these two primary functions. First, sarcopenic mice were injected with RJx-01, containing 410 mg/kg metformin and 3.28 mg/kg galantamine. Then, sarcopenic mice underwent strength and conditioning testing.

Results:

The investigators found that RJx-01 significantly improved muscle strength, with treated mice exerting over 38% more muscle force than untreated controls. They also showed that treated mice ran significantly longer (3-fold increase) during the treadmill test than their untreated counterparts, suggesting that RJx-01 preserves muscle function and endurance. Moreover, untreated mice exhibited much higher inflammation and denervation than treated mice, indicating that RJx-01 improves muscle performance and fitness by suppressing inflammation and hindering denervation.

(Tezze et al., 2023 | JCI Insight) RJx-01 enhances physical performance and fitness. (Left) Mice treated with RJx-01 (purple) have fewer denervated fibers than untreated mice (black) and mice treated with metformin (blue) or galantamine (orange) alone. (Middle/Right) Treated mice run significantly longer and exert more muscular force than all other experimental groups.

Notably, the findings demonstrate that metformin and galantamine likely work in synergy, as treatment with either metformin or galantamine alone failed to promote similar protective effects in sarcopenic mice. Following testing in sarcopenic mice, Tezze and colleagues proceeded to conduct similar testing in naturally aged mice (22 months old ~ 64 human years) to further elucidate RJx-01’s synergistic effects. The results showed that RJx-01 enhanced grip strength by 32%, increased running endurance, and reduced denervation, corroborating the data seen in sarcopenic mice and confirming RJx-01’s synergistic effects.

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Still looking for information on the dosing used in the Phase 1b clinical trial RJx-01-101

No luck yet - but this pitch deck is interesting:

Rejuvenate-Biomed-Pitch-Deck-Longevity.Technology.pdf (3.0 MB)

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Searching on sarcopenia on the Clinical Trials website, but it doesn’t seem to be linked with the company in these files:

https://clinicaltrials.gov/search?cond=sarcopenia&page=1

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The company presentation on this new drug combination:

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These summary graphs below seem pretty impressive (I think this is from the mouse studies).

If anyone already taking metformin decides to add galantamine to their regimen (@rberger , @DeStrider , etc ) please report back. I also wonder what the effect of this drug combo would be on regular non-sarcopenia people who are exercising.

In the animal studies they are reporting using Metformin Dose at 125X the Galantamine dose. So, if taking 1500mg SR metformin, that would be 12mg of galantamine to take a day with the metformin. Is there a slow release version of galantamine, as there is with metformin? (ah yes, there is, just found it):

Generic name: galantamine [ ga-LAN-ta-meen ]
Brand names: Reminyl, Razadyne, Razadyne ER
Dosage forms: oral capsule, extended release (16 mg; 24 mg; 8 mg), oral solution (4 mg/mL), oral tablet (12 mg; 4 mg; 8 mg)
Drug class: Cholinesterase inhibitors

Source: Galantamine Uses, Side Effects & Warnings

Do some pre-testing, and post testing over a month or two… I think I may try to get my 92 year old father to try this.



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Your father is 92 and still in good shape! What do you think his secrets are? What are his stacks?

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He’s not in great shape… and isn’t into longevity much, so other than longevity, not a model we want to follow. He tried rapamycin for a while, but didn’t continue, but I think I’ll try him again on it. And I want to try this drug combo to improve strength… he’s definitely got sarcopenia.

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I’m a ways off from sarcopenia, but my parents may be interested.

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What I can’t tell is whether or not the control group exercised. In other words, did the study compare “mice who took the drug against mice who didn’t take the drug and didn’t exercise” or “mice who took the drug against mice who didn’t take the drug but DID exercise”? If the drug doesn’t do significantly more for you than exercising, I’ll pass, although there are certainly people who can’t or won’t exercise who would benefit.

From what I can tell, in the mouse study they tracked the exercise of the control and treated mice, but did not force them to exercise (is it possible to force mice to exercise in these types of studies? I’m not sure…).

Here is what it says:

Physical performance

Opa1–/– mice.

The concentric training protocol consisted of the treadmill (Biological Instruments, LE 8710 Panlab Technology 2B) running to exhaustion, with no incline and a constant speed of 13 cm/s. Total running time was recorded for each mouse.

The in vivo muscle force is measured as previously described (41). Briefly, animals were deeply anesthetized, and the foot was mounted on a 305B muscle lever system (Aurora Scientific). The knee was blocked, and an electrical stimulation was applied to the sciatic nerve, inducing the isometric plantar flexion of the foot. The force-frequency curve was obtained by stimulating at increasing frequencies (starting with a single depolarization up to 150 Hz). Force was normalized to the weight of gastrocnemius and plantaris muscles to estimate specific force. Animals were then sacrificed by cervical dislocation according to the approved animal protocols, and muscles were dissected, weighed, and frozen. Experimental data were analyzed using a self-compiled program in LabView.

Aged mice.

At baseline and 18 weeks after treatment, mice performed concentric exercise on a treadmill (Biological Instruments, LE 8710 Panlab Technology 2B), as previously described (42). Total running time was recorded for each mouse.

Grip strength.

The grip strength was measured on forelimbs at baseline and 18 weeks after treatment using a commercially available Bioseb Grip Test device (Bioseb) as described previously (43).

From here: A combination of metformin and galantamine exhibits synergistic benefits in the treatment of sarcopenia - PMC

2 Likes