Trial reportLasers in medical science2019
Low-level laser therapy for the treatment of androgenetic alopecia in Thai men and women: a 24-week, randomized, double-blind, sham device-controlled trial.
Trial report in Lasers in medical science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
38 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.
- Home-based devices in dermatology: a systematic review of safety and efficacy.Archives of dermatological research · 2022Pooled it
- Intradermal Injections of 10% Glucose (Sihler G) for Scalp Hair Regrowth: A Randomized, Evaluator-Blinded Pilot Study.Aesthetic plastic surgery · 2026Trial
- Trial
- Review
- 675-nm diode laser as an adjuvant treatment for telogen effluvium: case series.Frontiers in medicine · 2026Article
- Adjunctive regenerative therapies in hair transplantation: a comprehensive review of platelet-rich plasma, exosomes, and emerging methods.Frontiers in medicine · 2026Review
- Mechanisms and clinical progress of adipose-derived stem cells and their derivatives in the treatment of hair loss.Stem cell research & therapy · 2025Review
- Lasers for treatment of androgenetic alopecia: an in-depth analysis.Lasers in medical science · 2025Review
- Evaluation of the Effect of Light Emitting Diodes Therapy (LEDT) to Reduce the Recovery Period of Rhinoplasty.Journal of lasers in medical sciences · 2025Article
- Efficacy and Safety of Laser Therapy and Phototherapy in Cicatricial and NonCicatricial Alopecia: A Systematic Review Study.Health science reports · 2024Review
- Effectiveness of 675-nm Wavelength Laser Therapy in the Treatment of Androgenetic Alopecia Among Indian Patients: Clinical Experimental Study.JMIR dermatology · 2024Article
- High-frequency ultrasonography of the scalp: A comparison between androgenetic alopecia and healthy volunteers.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2024Article
- Unlocking the Power of Light on the Skin: A Comprehensive Review on Photobiomodulation.International journal of molecular sciences · 2024Review
- A study of the biological effects of low-level light.Lasers in medical science · 2024Review
- Transcranial photobiomodulation for brain diseases: review of animal and human studies including mechanisms and emerging trends.Neurophotonics · 2024Review
- Potential application of PBM use in hair follicle organoid culture for the treatment of androgenic alopecia.Materials today. Bio · 2023Review
- Effect of Skin Type on Efficacy of Laser Treatment for Androgenetic Alopecia: A Review of the Literature.Skin appendage disorders · 2023Review
- Recent Advances in Understanding of the Etiopathogenesis, Diagnosis, and Management of Hair Loss Diseases.Journal of clinical medicine · 2023Review
- The efficacy of LED microneedle patch on hair growth in mice.Archives of dermatological research · 2023Article
- Treatment of Androgenetic Alopecia: Current Guidance and Unmet Needs.Clinical, cosmetic and investigational dermatology · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Low-level laser/light therapy (LLLT) has been increasingly used for promoting hair growth in androgenetic alopecia (AGA). Our institute developed a new home-use LLLT device, RAMACAP, with optimal penetrating energy, aiming to improve therapeutic efficacy and compliance. To evaluate the efficacy and safety of the new helmet-type LLLT device in the treatment of AGA, a 24-week, prospective, randomized, double-blind, sham device-controlled clinical trial was conducted. Forty subjects with AGA (20 men and 20 women) were randomized to treat with a laser helmet (RAMACAP) or a sham helmet in the home-based setting for 24 weeks. Hair density, hair diameter, and adverse events were evaluated at baseline and at weeks 8, 16, and 24. Global photographic assessment for hair regrowth after 24 weeks of treatment was performed by investigators and subjects. Thirty-six subjects (19 in the laser group and 17 in the sham group) completed the study. At week 24, the laser helmet was significantly superior to the sham device for increasing hair density and hair diameter (p = 0.002 and p = 0.009, respectively) and showed a significantly greater improvement in global photographic assessment by investigators and subjects. Reported side effects included temporary hair shedding and scalp pruritus. In conclusion, the novel helmet-type LLLT device appears to be an effective treatment option for AGA in both male and female patients with minimal adverse effects. However, the limitations of this study are small sample size, no long-term follow-up data, and use of inappropriate sham devices, which do not reflect the true negative control. Trial registration: http://clinicaltrials.in.th/index.php?tp=regtrials&menu=trialsearch&smenu=fulltext&task=search&task2=view1&id=2061 , identifier TCTR20160910003.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.